Desiccant Dehumidification From 750 to 7250 Scfm

Transcription

Desiccant Dehumidification
From 750 to 7,250 Scfm
Dry Desiccant Dehumidification
Systems for Humidity Control
Stulz Air Technology Systems, Inc. (SATS)
Founded in 1947, STULZ acquired Air Technology
Systems (ATS) in March 2001, naming the new
company Stulz Air Technology Systems, Inc. (SATS).
SATS is dedicated to providing innovative solutions
for critical temperature and humidity control needs.
SATS designs and manufactures specialized
environmental control equipment for commercial,
industrial and custom military applications. SATS
serves a diverse marketplace - including telecommunications, information technology, medical, financial,
educational, industrial process and government
contracts - utilizing world-class "island" manufacturing
processes in a modern, 150,000 ft2 facility. The
addition of SATS to the STULZ family of companies
solidifies STULZ as a global leader in the precision air
conditioning marketplace. SATS combines a global
network of sales and service companies with an
extensive factory engineering staff and highly flexible
manufacturing resources dedicated to providing
world-class quality, innovation and customer service.
ISO-9001:2001 Quality Registered
Stulz-ATS is committed to satisfying customer
expectations by meeting and exceeding customer
requirements. Our Quality Policy ensures that every
Employee is committed to Customer Satisfaction,
Teamwork and utilizing Continuous Process
Improvement methods in order to deliver an
exceptional product. We continually measure our
performance to improve the effectiveness of our
quality management system.
SATS DESICAiR®- DRY DESICCANT
DEHUMIDIFICATION
SATS DESICAiR dehumidifiers utilize a unique dry and
stable desiccant. The desiccant is a synthesized silica
gel that is permanently encapsulated in the rotor’s molecular matrix. DESICAiR dehumidifiers provide precise
humidity and/or temperature control of either a room
or a process air stream such as may be required for
pharmaceutical air preparation, tabletting, panning, etc;
air conveying of hygroscopic products; preparation,
hardening and packaging of confectionery, chocolate,
candy; plastic molding operations; electronics manufacturing, warehousing; archival storage of documents,
films, artifacts or works of art; seed storage; investment casting operations; stand by readiness of military
hardware; battery manufacturing; general manufacturing; water remediation and many other applications.
DESICAiR dehumidifiers are available in sizes from
50 to 15,000 scfm and with moisture removal capacities
exceeding 500 Ibs per hour.
1-1
DESICAiR Series DEZ 1000 and Series DES 2000
dehumidifiers provide dry air for humidity control
with many standard options.
DESICAiR DHP (Dry Handler Plus™) Series
systems combine desiccant dehumidification
with cooling, heating, humidifying, filtration and
many other custom features such as double
wall construction. This series facilitates single
source, stand alone environmental control.
Product Reliability
Each desiccant rotor is precision manufactured for
long life and low maintenance requirements and
driven by a positive grip synchronous drive belt.
Each DESICAiR dehumidifier must pass stringent
quality assurance testing before leaving our
factory. SATS offers the industry’s only 5 year rotor
protection warranty as a standard!
Typical applications include:
PROCESSES

Plastic Injection Molding
Pharmaceutical Tabletting/ Capsuling
Electronics Manufacturing
Candy Production
Packaging Operations
ENVIRONMENTAL

Warehouse & Storage Facilities
Museums
Document Archives
Military Equipment Preservation
Laboratories & Clean Rooms
Pneumatic Conveying (Grain Elevators)
Water Remediation
PERFECT FOR FLOOD DAMAGE RESTORATION!
Table of Contents
SECTION - 1
Introduction to SATS......................................... 1-1
Table of Contents ............................................. 1-2
SECTION - 2
DESICAiR® SYSTEMS:
How it Works .................................................... 2-1
DHP Dehumidifier Advantages ...................... 2-2/9
Model Nomenclature ....................................... 2-10
SECTION - 3
SELECTED FEATURES:
Standard/Optional Features .......................... 3-1/8
SECTION - 4
GUIDE SPECIFICATIONS:
Guide Specifications ...................................... 4-1/7
Microprocessor Controls ............................... 4-8/9
Optional Features Guide Specifications .... 4-10/12
SECTION - 5
PERFORMANCE SPECIFICATIONS:
Performance Data ....................................... 5-1/10
Performance Curves ................................. 5-11/13
SECTION - 6
DIMENSIONAL INFORMATION:
Dimensional Data “A” Cabinet ....................... 6-1/2
Dimensional Data “B” Cabinet....................... 6-3/4
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DH 100 Series
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DRY 500 Series
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DEZ 1000 Series
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DES 2000 Series
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DHM 4000 Series
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DHP 6000 Series
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DESICAiR FAMILY OF PRODUCTS
1-2
Desiccant Dehumidification - How It Works
6
7
5
REACTIV
ATION A
IR
IN
8
REACTIV
ATION A
IR
OUT
2
4
3
PROCES
S AIR OU
T
1
PROCES
S AIR IN
9
DESICAiR DHP Series Desiccant Dehumidifier
How it Works ...
Humid (process) air (1) is drawn into the dehumidifier
through a filter (2) and a specially designed plenum.
The air passes through the rotor (3) where moisture
is adsorbed by the desiccant.
As moisture is adsorbed by the desiccant, heat is
given off to the air stream. This heat gain causes the
dry bulb temperature of the air stream to increase.
The dehumidified air passes through a second
plenum and is discharged (4) by the process air
blower.
The reactivation air (5) is drawn through a filter (6),
heated (7) and enters the rotor through an insulated
plenum. Heating the air reduces the relative humidity
of the reactivation air and increases its moisture
holding capacity. The reactivation air also heats the
desiccant, reducing its moisture holding capacity and
delivers the necessary heat of vaporization to drive
the moisture from the desiccant in vapor form. As this
process continues, the reactivation air dry bulb
temperature is reduced due to the conversion of
moisture to vapor. The reactivation air passes
2-1
through another plenum and is discharged (8) by the
reactivation air blower.
The plenums are constructed to keep the process
and reactivation air streams from mixing.
While the dehumidifier is operating, the rotor is
continuously turned by the drive motor and belt (9).
The moisture adsorbed from the process air stream
is carried to the reactivation zone where the moisture
is transferred to the reactivation air stream.
The air streams pass concurrently through the rotor
in a counterflow air pattern. The process and reactivation air streams follow separate and isolated paths
through the dehumidifier. They are prevented from
mixing by four significant design features:
•
•
•
•
Entering through isolated plenums.
Solid rotor flute construction.
Unique process to reactivation face seals.
Double peripheral seals on each face.
DHP Series Dehumidifiers
The DHP Series models are industrial
duty dry desiccant dehumidifiers. They
dehumidify a space or process application to a humidity level chosen by the
user without lowering the air temperature.
Using desiccant air drying technology,
humidity can be reduced to levels below
that which is achievable with a refrigeration based dehumidification system.
Capacity range is from 750 through
15,000 scfm.
DHP Series dehumidifiers even allow cold
air streams to be dehumidified without
further reducing the air temperature, so
freezing and/or frosting of components is
prevented. Air to be dehumidified is drawn into the unit, filtered, dehumidified and then supplied to the space
or process to be conditioned. Each dehumidifier is complete with all the necessary blowers, controls, filters and
drive components to assure the safe and automatic operation of the unit. Single point electrical power connection is provided.
DHP Series Systems Offer Outstanding Advantages
Flexibility
Non-Proprietary Parts
The DryHandler Plus is manufactured using predesigned modules which are integrated together with
the main DryHandler module on a single mounting
skid. With this method SATS can rapidly incorporate
custom features using a standardized approach to
the system design and manufacture.
All DHP Series systems incorporate non-proprietary
components where possible. Most major HVAC,
refrigeration or electrical distributors stock an exact
model cross reference or an alternate to most factory
provided components.
Versatility
•
Space or Process Conditioning
Standard Features
•
•
•
•
•
Code Conformance
Durable Protective Finish
Skid Mounted- Eases Moving and Placement
Filtered Air Inlets
Vibration Isolated Process Blower
Easy to See Static Pressure Gauges
A range of options to meet your needs:
• Electric, Gas or Steam Powered Reactivation
• Round or Square Duct Connections
• Status Indicator Lamps
• Remote Unit Starting/Monitoring
Range of Sizes
A range of flow capacities to meet your space or
process conditioning requirements from 750 to 7,250
scfm.
• Control enclosures are certified to UL508A Standards.
• Gas reactivation units are designed to
NFPA guidelines.
• Electric, Steam & Gas reactivation units may be
optionally certified to UL1995 Standards by
Nationally Recognized Testing Laboratories
(NRTL).
Comprehensive Warranty
All parts are warranted for two years from date of
installation.
Note: Certain terms and conditions apply.
5-Year Rotor Warranty - The desiccant rotor is
protected with an exclusive SATS DESICAiR warranty
for five (5) years against softening or collapse due to
exposure to humid air.
2-2
DHP Series Dehumidifiers - Outstanding Advantages
DIFFERENTIAL RESSURE
GAUGE BOXES
REACTIVATION HEATER
ELECTRIC BOX
HER HOOD
EEN (OPTIONAL)
HINGED ACCESS
DOORS
WEATHER HOOD
W/SCREEN (OPTIONAL)
PROCE
AIR OU
AIR IN
BLOWER MODULE
FILTER
MODULE
MODULE
DHP DEHUMIDIFIER
MODULE
MODULE
FILTER
MODULE
Front View
DESICAiR DHP Modular Construction
Air treatment modules, shown above, may be selected as required for a particular application. This approach allows
speedy delivery of dehumidification systems that are efficiently manufactured using proven design features.
DHP Series Systems- Superior Features
Solid State Controls
Precision humidity management with unrivaled, user
friendly controls that offer a wide range of functions
and features. Capacity controls are used to meet a
design control criteria or space condition. Do you
need to maintain RH, condensation or dew point
control? With SATS/DESICAiR you can specify the
type and tolerance of control that you require for
each demanding project.
Desiccant Rotor
The advantage to our
dehumidifying technology
is in the rotary style,
desiccant rotor which is
manufactured using a
unique, media (substrate)
formulated for maximum
performance with minimal
maintenance.
The high performance silica gel desiccant is noncorrosive and non-toxic. The rotor is equipped with a
non-slip, synchronous, belt-drive system.
DHP Series dehumidifiers utilize an 8" deep rotor to
2-3
achieve the published performance data. For dew
point requirements below those shown, please consult
the factory.
The desiccant is not adversely affected by exposure
to air even at 100% relative humidity nor to idle or to
prolonged storage in humid atmospheres. The
dehumidification rotor is capable of sustained operation with either or both the process or the reactivation
blower operating without reactivation heat applied.
Such operation does not cause loss of desiccant or
softening of the rotor.
The rotor is cleanable with either warm water, detergent or a solvent solution without damage or loss of
desiccant. Performance is virtually unaffected. Degradation due to washing of the rotor is less than 3%
over 10 years. This slight loss in performance is
accounted for in the published performance data.
Initially, measured performance of a dehumidifier is
actually better than indicated by the published data
due to SATS’s conservative approach to applications
engineering.
The desiccant rotor is backed by a standard exclusive
warranty for five (5) years against softening or collapse due to exposure to humid air.
Pressure Indicating Gauges
Differential pressure indicating
gauges are provided to indicate
the pressure drops across the
rotor for air balancing.
Separate gauges are provided for
process and reactivation air
streams. The gauges are factory
mounted on the cabinet and
visible without requiring the removal of any panels or access covers.
The gauges have a large face and
dial and are suitable for either
indoor or outdoor applications.
Air Seals
The process and reactivation sections are provided
with air seals to prevent leakage and mixing of one air
stream to the other.
Reactivation Air Blower:
A reactivation blower is provided and sized for the air
requirements of standard units. DHP Series units
utilize direct drive reactivation blowers as standard.
The standard blower orientation is horizontal discharge. Up blast or other discharge orientations are
available as factory options.
Motors
Industrial duty motors for either process or reactivation blowers are TEFC and suitable for either indoor
or outdoor installation. Premium efficiency motors are
also available.
Dampers
Manual air flow regulating dampers are provided as
standard on all direct drive blowers. Direct drive
blowers have a single blade damper with bronze
bushing. An external adjusting arm and positive
locking mechanism is included.
The rotor face seals are constructed of a two ply
material with the contact surface made of a reinforced
PTFE material. The PTFE is bonded to a flexible
backer to allow for thermal expansion and contraction.
The seals and rotor construction allow for independent adjustment and balancing of the process or
reactivation air flow. Dual, double lipped, continuous
high temperature silicone seals are utilized to seal the
rotor periphery flange. Balloon or bulb type seals,
which tend to split, are not used.
Opposed blade air flow regulating dampers are
optionally provided for belt driven blowers and for
mixing sections. When provided, opposed blade
dampers are constructed of galvanized steel frames
and blades, compressible stainless steel side seals,
santoprene blade seals and acetal bearings. Manual
locking hardware is provided.
Blowers
Rotor Drive
Process Air Blower:
A process air blower is provided and sized for the air
requirements of standard DHP Series units as listed in
the performance tables in section 5. The external
static pressure (ESP) available for standard units is
also shown in the tables.
Smaller units utilize direct
driven process air blowers.
Larger units utilize dual belt
driven process air blowers that
include an adjustable pulley to
allow for field adjustment.
The process blower shaft is sealed to prevent moisture infiltration into the dehumidification system. The
standard blower orientation is horizontal discharge.
Up blast or other discharge orientations are available.
Motorized dampers are provided with a direct coupled, electric actuator.
The rotor drive system is equipped with all the necessary components
for continuous slip
free operation.
The drive system
consists of a
speed reducer,
belt tensioner and
a reinforced
synchronous drive
belt. Matching
cleats are permanently mounted on
the rotor.
Rotor rotation is
continuous. This
feature prevents humidity “spikes” caused by intermittent or indexing type machines. The rotation speed is
predetermined and is selected to achieve maximum
2-4
dehumidification effectiveness.
The rotor is shaft mounted and supported by ball
bearings for long life and minimum maintenance. The
ball bearings support the full weight of the rotor
without inducing stress on the rotor’s outer wrapper
or flutes.
Rotor rotation failure detection is not required to
protect the rotor and is not provided on standard
units however, it is available as a factory installed
option.
The speed reducer drive motor is housed within the
cassette section of the dehumidifier cabinet and is
not exposed to ambient conditions.
Reactivation Heater
DHP Series units are available with electric, steam or
gas fired reactivation heater sections. Heaters are
controlled by an adjustable, solid state proportional
control system designed to prevent overheating and
provide energy conservation by matching heat input
to the required moisture removal rate. The reactivation heater section is mounted in an insulated housing to minimize heat loss and to prevent incidental
contact with hot surfaces by operating or service
personnel. This important conservation and safety
feature is provided for all DHP Series units.
Electric Reactivation:
Electric reactivation heaters have
three (3) levels of safety: air
proving, high temperature overheat cut out and leaving reactivation temperature control. A reactivation cool down cycle removes
residual heat from the system
when the unit shuts down.
Electric reactivation heaters
include an air proving safety switch
that is wired in the heater control
circuit to prevent the heater from
operating during loss of reactivation airflow.
Additionallly, two high temperature safety cutouts are
installed in the heater control circuit. One temperature sensor is located between the heater and the
rotor inlet. The second temperature sensor is installed in the reactivation air discharge. In the event
2-5
of an overheat occurrence, a fault light located on
the operator’s panel is signaled. A manual reset
device is provided in order to avoid attempted
operation by automatic resetting devices during a
fault condition.
Steam Reactivation:
Steam heating coils are housed in an easily accessible insulated section to ensure maximum thermal
transfer to the reactivation air stream and provide for
personnel safety. This innovative design feature
complies with OSHA regulations concerning personnel safety protection from hot surfaces. Steam coils
are the non freeze steam distributing type. Coil
connections are stubbed out through the dehumidifier cabinet. Coil removal is provided through the front
of the cabinet as part of the service access.
The “heated to” temperature is limited by the supply
steam pressure. The reactivation leaving temperature is automatically controlled by a factory installed
solid state controlled modulating damper. This
standard control feature conserves steam consumption by matching energy input with the required
moisture removal rate. When humidity loads are less
than design conditions the controller modulates the
damper toward the closed position. As this modulation occurs, less air passes over the steam coils
causing less steam to be condensed. The damper
spring returns closed when the unit is shut down or
power is removed. Since the steam coils do not “cool
down” unless the steam supply is turned off, a cool
down cycle is not required.
Direct Fired Gas Reactivation:
Direct fired natural or LP gas reactivation heaters are
available and include all the necessary controls to
detect and monitor the gas flame. The ignition
sequence is controlled by a UL/FM/CSA approved
flame safety relay device. Controls include an air
proving switch that is wired in the heater control
circuit to prevent the heater from operating if the
reactivation blower fails. An observation window is
included to allow for the visual confirmation of the
gas flame without removal of a service panel.
Two high temperature safety cutouts are installed in
the heater control circuit. One temperature sensor is
located between the heater and the rotor inlet. The
second temperature sensor is installed in the reactivation air discharge. In the event of an overheat
occurrence, a fault light located on the operator’s
panel is signaled. A manual reset device is provided
in order to avoid attempted operation by automatic
resetting devices during a fault condition.
A control system regulates the reactivation leaving
temperature. Energy saving automatic modulation of
the gas supply is provided as standard. The gas fired
reactivation heaters are mounted in double-wall
sections with 300 series stainless steel liners.
The gas train is designed to NFPA guidelines. Compliance to local codes for venting and other requirements are the responsibility of the owner.
The pilot flame can be adjusted and set independent
of the main flame. Separate gas pressure regulator
valves are provided for the pilot and main gas line. A
spark igniter system is used. Gas fired reactivation
heaters have at least eight (8) levels of control and
safety features: air proving, ignition control, flame
detection, high gas pressure cutout, low gas pressure
cutout, slow opening main gas supply valve, “heated
to” high temperature limit and reactivation leaving
temperature control. A reactivation cool down and
purge cycle removes residual heat and the by products of combustion from the system when the unit
shuts down. Indirect gas fired reactivation heaters are
available as an option.
Cabinet Construction
The dehumidifier is constructed of high grade 5052
aluminum alloy for corrosion protection. Standard
units have 1/8" thick single wall construction with rigid
supports. The outer surface is coated with an industrial self etching “direct to metal” high quality low VOC
epoxy coating. This coating system is designed for
either indoor or outdoor exposure.
Hinged service access doors or removable panels are
provided to allow for the service or replacement of all
major components without disconnecting duct work or
power supply connections. Full jam gaskets are
standard to prevent moisture infiltration into the
cabinet. Convenient, turn-to-lock handles are provided on access doors.
Test ports are provided as standard. Ports are
located to allow for the measurement of temperature
or humidity both upstream and downstream of the
desiccant rotor. A port is also provided to allow for the
measurement of the reactivation “heated to” temperature. These convenient test ports allow for the confirmation of design conditions during startup and
operating cycles.
Double wall construction with 2” internal insulation is
available as an option for applications when the inlet
air temperature is below the ambient air dew point
temperature to prevent condensation from forming on
the cabinet. This option will also retard heat gain to a
low temperature space should the dehumidifier be
located within the controlled space.
Process Air Blower Orientation:
Standard units are of the Left hand orientation as
shown in the preceding photo. The photo depicts a
DHP unit with an optional, process air inlet weather
hood. The process air outlet is on the left side (hidden from this view) as you are facing the access
panels on the front of the unit. Right hand process air
outlet orientations are also available.
Skid:
The dehumidifier skid is designed to support the full
operating weight of the unit and to allow for rigging,
transportation and handling at the job site. Lifting
points are provided as standard to assist in loading
and placing the equipment at the job site.
Connections:
All air connections have flanges as standard. Flanges
are left blank for match drilling in the field. Optional
inlet and outlet designs include weather protected
hooded intakes or hooded outlets.
2-6
Filters
Two inch thick, replaceable 30% pleated filters are
provided as standard. Process air filters are easily
accessed through hinged doors. Side access is
provided for reactivation air filters. High efficiency and
HEPA filters are optionally available. HEPA filter
applications should consult the factory. Filter differential pressure indicating gauges and Dirty Filter alarms
are available as factory installed options.
Unit Controls
A front access control panel with an ON/OFF/AUTO
selector switch and status indicator lights is standard.
The switch and indicator lights are panel mounted on
a NEMA 4 electrical enclosure and are rated for
outdoor service. The control panel is listed UL508A.
Switch Positions
ON: In the “ON” mode the dehumidifier operates
continuously.
Microprocessor Based System
Controls
Microprocessor based controls are offered for control
of all DHP operations. The operator is given the ability
to select temperatures, relative humidity and/or
dewpoint levels as desired for their process condition
or space. Building Management Systems are easily
interfaced to the controls. The controller interfaces
with the industry standard building management
systems such as BAC-NET, MODBUS, etc.
D-Tech 20 Controller
The D-tech 20 is designed by industry leading engineers who’ve incorporated decades of experience
into developing a controller complete with the most
sought after features. The D-Tech 20 controller
utilizes an advanced programmable microprocessor
with software designed specifically for the DHP Series
dehumidifiers.
D-TECH 20 CONTROLLER
OFF: In the “OFF” position all motors, drives and
heaters are de-energized. Upon shut down of the
dehumidifier, the process blower and reactivation
heater are de-energized. For electric and gas fired
reactivated units, the rotor drive and reactivation
blower continue to operate during a cool down cycle.
This cool down cycle removes residual heat from the
rotor and reactivation sector.
The D-Tech 20 operator interface panel includes a
back-lit 4 line x 20 character alphanumeric display.
The program is user friendly with operator prompts.
The menu driven loop structures assist the operator
with navigating through the various screens.
DHP Control Flexibility
DHP systems are designed to operate with a variety
of optional controllers as specified.
AUTO: Automatic capacity control using one of four,
factory configured control methods that are available
to fit your application. See Capacity Control Methods
on next page.
Status indicator lights are mounted on the electrical
enclosure front panel. Lights indicating Power On,
Unit On and Fault Condition are standard. The unit
On light and Fault lights include a “Press-To-Test”
feature to check light bulb operation.
This greater flexibility enables easy integration into
existing building control systems. Building Management Systems are easily interfaced to the controls.
SATS/DESICAiR dehumidifiers are offered with a
selection of capacity control methods. Dehumidifiers
are designed to meet maximum operating requirements specified for the humidity control project. Most
of the time, the dehumidifier is operating at less than
2-7
peak design conditions. If not controlled properly, too
much energy would be consumed to meet performance requirements. Energy conservation control
ensures that enough reactivation energy is applied to
meet the performance by modulating the reactivation
heater. DHP Series capacity control methods utilize
the built-in, variable capacity of the high performance
silica gel desiccant to maintain the desired control
setpoint.
Energy conservation is becoming an increasingly
important factor for engineers to consider when
designing building environmental controls. Customary
face and bypass control, used to maintain humidity
levels, is rendered archaic when compared with
exclusive energy saving capacity control methods
designed by SATS.
Capacity Control Methods
D-Stat II™:
The D-Stat II control system is recommended where
the dehumidifier is part of an air handling system or
where control tolerance is more critical.
The dehumidifier responds to a control signal from a
humidistat. In the “AUTO” mode the dehumidifier
responds to a humidistat and remote start/stop signal.
A wall mounted humidistat is available as an option for
field mounting. Terminal connections are included in
the electrical enclosure for connection of the humidistat. The D-Stat control system cycles the reactivation
heater and blower On and Off to save energy while
the process blower operates continuously. This
feature provides for an uninterrupted supply of air to
the space or process area. This is particularly important in systems where the humidity is just one of the
controlled parameters. Air volume for upstream or
downstream heating or cooling processes are unaffected by the D-Stat II control system. The unique
SATS control system monitors both the reactivation
heater temperature and reactivation leaving temperature to provide optimum drying while minimizing
energy consumption.
A wall mounted humidistat is available as an option for
field mounting.
“Trac” Control Systems
The exclusive Dew-Trac™, H-Trac™ and C-Trol II™
proportional control systems continuously adjust the
dehumidifier capacity in response to load changes
within the controlled space. Load changes can occur
due to changes in manufacturing rates, ventilation,
product movement in, or out, of the “space” or man-
power requirements, etc. Since capacity is controlled
by reactivation energy, only the minimal amount of
energy is required to maintain design conditions.
Dew-Trac and H-Trac control methods can be utilized
for precise humidity control without the use of customary face and bypass damper sections. By eliminating
the damper section, air instability, damper “leakage”,
and actuator hysteresis are eliminated. Service
intervals are extended as fewer mechanical components are required. Response to a change in load is
rapid and initiates as quickly as the signal reaches
the heater control system.
Dew-Trac:
The Dew-Trac control system is recommended for
applications where the controlled humidity level is
below the capability of a relative humidity sensor or
where the dew point control is more critical to the
manufacturing or laboratory process than control
based upon relative humidity.
The dehumidifier responds to a control signal from a
dew point transmitter. In the “ON” mode the Dew-Trac
controller automatically regulates the reactivation
heater to provide a constant process air leaving or
space dew point temperature. In the “AUTO” mode
the dehumidifier responds to a remote start/stop
signal. The Dew-Trac control feature may include an
optional space mounted dew point sensor/ transmitter
and adjustable set point microprocessor controller.
H-Trac:
The dehumidifier responds to a control signal from an
optional unit mounted or space mounted relative
humidity transmitter. In the “ON” mode the H-Trac
controller automatically regulates the reactivation
heater to provide a constant relative humidity of either
the process air or “space” condition. In the “AUTO”
mode the dehumidifier responds to a remote start/
stop signal. The H-Trac control feature may include
an optional adjustable set point microprocessor
controller. With the H-Trac control system, the dehumidifier runs continuously and maintains a constant
relative humidity.
C-Trol II:
The C-Trol II control system is recommended to
prevent dripping and damage caused by condensate.
The dehumidifier responds to a signal from the
system controller to prevent condensation from
forming on cold surfaces such as pipes, tanks,
pumps or any surface in contact with a cold liquid. A
cold surface temperature sensor and a space RH/
2-8
temperature sensor are field installed by the contractor. The controller compares the cold surface temperature to the ambient dew point temperature (calculated by the controller) and controls the reactivation
heater output as required.
Reactivation is controlled to maintain space dewpoint
to 5 degrees below the cold surface temperature. If
the space dewpoint is satisfied and the reactivation
heater output is 0% for a pre-determined time period,
the reactivation heater and blower will turn OFF to
save energy. When dehumidification is again required, the reactivation will automatically re-start. The
process blower runs continuously.
Wiring Practices:
Branch circuit protection, motor starters and overload
protection are provided in accordance with the latest
edition of the National Electric Code. All wiring is run
in flexible liquid tight conduit. All wires are individually
numbered and harness bundles are neatly tie
wrapped. A grounding lug is provided in the electrical
enclosure.
Condensing Units:
A Remote Condensing Unit (RCU) is required to
condense refrigerant in DX cooled systems. The RCU
may be customer provided or selected as an option
and sized by SATS. R-22 refrigerant is utilized as a
standard. Other refrigerants are optionally available.
Pre/Post Heating
Heating coil(s) may be mounted in the process air
stream before the process side of the rotor for preheating and/or after the process side of the rotor for
post heating the process air. The heating modules
may be electric heating elements or hot water/steam
coils.
Pre-heating may be used in cold environments to
prevent the pre-cooling coils from freezing or icing
over. Post-heating may be used to heat the process
air after it passes through the rotor; for maintaining
the temperature of the air delivered to the space to
be conditioned.
Air Mixing Module
A lockable disconnect switch is available. It may be
provided as a factory installed option or shipped
loose for field installation. When factory installed, the
disconnect is mounted on the dehumidifier cabinet
and the power cable is factory wired between the
power supply terminals located within the electrical
enclosure and the disconnect.
An elapsed run time hour meter is
provided as standard. The hour
meter is mounted within the electrical
enclosure.
Pre/Post Cooling
Cooling coils may be mounted in the process airstream before and/or after the desiccant rotor. The
cooling modules may use either DX (direct expansion)
refrigeration or a CW (chilled water) cooling process.
Pre-cooling may be used to cool and condense
moisture from the process airstream before it enters
the rotor. Moisture from the air condenses on the fins
of the coil(s) and collects in a drain pan positioned
beneath each coil. Post cooling may be used to cool
the process air after it passes through the rotor. Post
cooling may be used for maintaining the temperature
of the air being delivered to the space or process
application. A stainless steel drain pan is provided for
each cooling coil.
2-9
An air mixing module is optionally available with a
manual balancing damper and manual locking hardware as standard.
Power Supply
A single point electrical power connection is provided.
An optional main power disconnect is available. DHP
Series dehumidifiers are designed to operate using
480/3/60 input power. Optional operating voltages
available are (208/230)/3/60 and 575/3/60. Optional
50 Hz operation is also available.
Warranty
SATS provides a limited warranty for 24 months from
date of start up for mechanical and electrical components. Normal wear and tear is excluded. (Certain
terms and conditions apply.) The desiccant rotor is
covered by an exclusive 60 month warranty against
softening or collapse even if exposed for prolonged
periods to saturated air.
Start Up
Start up kits including replacement fuses control panel
indicating lamps, blower belts and filters are available.
Supervision of start up activity or performance of
startup can be provided by the SATS Product Support
Group or by a factory authorized contractor for all
dehumidifiers.
DHP Series Dehumidifiers - Model Nomenclature
MODEL NOMENCLATURE
Desicaire Product Identification Number
DHP – 4 2 5 0 – 1 0 7 – G – L –S
DHP= DryHandler™ Plus
750 CFM
1150 CFM
1500 CFM
2250 CFM
2750 CFM
3000 CFM
3750 CFM
Nominal Process Airflow = 4250 CFM
5500 CFM
6000 CFM
7250 CFM
S =Single Wall
D =Double Wall
Cabinet Configuration
L =Left Hand
R =Right Hand
Reactivation Types
S =Steam
G =Gas
E =Electric
055 cm
077 cm
107 cm
122 cm
2-10
Configurable Features - DHP Series Dehumidifiers
“DHP” Model
-750-55
-1150-55
-1500-55
-1500-77
-2250-77
-3000-77
Configurable Features
Dry Handler Module
•
•
•
•
•
•
•
Silica Gel Desiccant Rotor
Molecular Sieve Rotor
High Efficiency Rotor
Rotor Static Presssure Indicating Gauges
Access Door with Stainless Steel Hinge
Access Door Viewing Window
Rotor Viewing Window
Standard
Optional
Opt
Std
Std
Opt
Std
Standard
Optional
Opt
Std
Std
Opt
Std
Standard
Optional
Opt
Std
Std
Opt
Std
Standard
Optional
Opt
Std
Std
Opt
Std
Standard
Optional
Opt
Std
Std
Opt
Std
Standard
Optional
Opt
Std
Std
Opt
Std
Std
Std
Opt
Std
Opt
Std
Std
Std
Opt
Std
Opt
Std
Std
Std
Opt
Std
Opt
Std
Std
Std
Opt
Std
Opt
Std
Std
Std
Opt
Std
Opt
Std
Std
Std
Opt
Std
Opt
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Opt
Std
Std
Std
Std
Std
Std
Opt
Std
Std
Std
Std
Std
Std
Opt
Std
Std
Std
Std
Std
Std
Opt
Std
Std
Std
Std
Std
Std
Opt
Std
Std
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Std
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Opt
Std
Std
Std
Std
Std
Std
Std
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Std
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Std
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Std
Std
Std
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Reactivation Module
•
Direct Drive Motor
•
Flanged Air Inlet
•
Screened Air Inlet with Weather Hood
•
Flanged Air Outlet
•
Screened Air Outlet with Weather Hood
•
Inlet Filter- 30% Pleated
Electric Reactivation Module
•
Nichrome wire Element(s)
•
Solid State Proportional Control
•
High Temperature Cut Out
•
Air Proving Switch
Gas Reactivation Module
•
Direct Natural Gas
•
Direct Propane Gas
•
•
High/Low Gas Pressure Cut Out
•
Gas Pressure Regulating Valves
•
Air proving Switch
•
Burner Static Pressure Indicating Gauge
Steam Reactivation Module
•
•
Copper Tube/Aluminum Fin Coil(s)
Auto Modulating Damper Control
Make-up Air/Mixing Box Module
•
•
•
Manual Damper Control
Pre-Filter Module
•
•
•
•
•
•
- (Standard Module Width is 24”)
Std
Std
Opt
30% Pleated
High Efficiency 45%-95% Filters w/Pre-Filter
HEPA Filters
Dirty Filter Indicating Gauge
Post Filter Module
Std
Std
Opt
Std
Std
Std
Std
Std
Std
Opt
Opt
Opt
Opt
Opt
Opt
-----------------------------------Consult Factory---------------------------------Opt
Opt
Opt
Opt
Opt
Opt
Std
Std
Std
Std
Std
Std
Opt
Opt
Opt
Opt
Opt
Opt
•
•
•
•
•
30% Pleated with Pre-Filter
HEPA Filters
Std
Std
Std
Std
Std
Std
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Std
Std
Std
Std
Std
Std
•
Opt
Opt
Opt
Opt
Opt
>>> DHP Dehumidifiers may be configured from available modules listed <<<
3-1
Opt
Configurable Features - DHP Series Dehumidifiers
“DHP” Model
-2750-107
-4250-107
-5500-107
-3750-122
-5500-122
-7250-122
•
•
•
•
•
•
Silica Gel Desiccant Rotor
Molecular Sieve Rotor
High Efficiency Rotor
Rotor Static Presssure Indicating Gauges
Rotor Viewing Window
Standard
Optional
Opt
Std
Std
Opt
Std
Standard
Optional
Opt
Std
Std
Opt
Std
Standard
Optional
Opt
Std
Std
Opt
Std
Standard
Optional
Opt
Std
Std
Opt
Std
Standard
Optional
Opt
Std
Std
Opt
Std
Standard
Optional
Opt
Std
Std
Opt
Std
Std
Std
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Std
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Std
Std
Std
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Std
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Std
Std
Std
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Std
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Std
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Std
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Std
Std
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Std
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Std
Std
Std
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Std
Opt
Std
Std
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Std
Std
Std
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Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
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Std
Std
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Opt
Std
Std
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Std
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Opt
Std
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Std
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Std
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Std
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Std
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Std
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Std
Std
Std
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Opt
Std
Std
Std
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Std
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Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Reactivation Module
•
Direct Drive Motor
•
Flanged Air Inlet
•
Screened Air Inlet with Weather Hood
•
Flanged Air Outlet
•
Screened Air Outlet with Weather Hood
•
Inlet Filter- 30% Pleated
Electric Reactivation Module
•
•
•
•
Air Proving Switch
Gas Reactivation Module
•
Direct Natural Gas
•
Direct Propane Gas
•
High Temperature Cut-Out
•
High/Low Gas Pressure Cut-Out
•
Gas Pressure Regulating Valves
•
Air proving Switch
•
Burner Static Pressure Indicating Gauge
Steam Reactivation Module
•
•
Auto Modulating Damper Control
Make-up Air/Mixing Box Module
•
•
•
Manual Damper Control
Pre-Filter Module
•
•
•
•
•
•
Std
Std
Opt
Std
Std
Opt
30% Pleated
HEPA Filters
Post Filter Module
Dry Handler Module
•
Std
Std
Std
Std
Std
Std
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Std
Std
Std
Std
Std
Std
Opt
Opt
Opt
Opt
Opt
Opt
•
•
•
•
•
30% Pleated with Pre-Filter
HEPA Filters
Std
Std
Std
Std
Std
Std
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Std
Std
Std
Std
Std
Std
•
Opt
Opt
Opt
Opt
Opt
Opt
3-2
Configurable Features (cont.)
“DHP” Model
-750-55
-1150-55
Std
Std
Opt
Std
Std
Opt
- DHP Series Dehumidifiers
-1500-55
-1500-77
-2250-77
Pre-Cool Module
Chilled Water Cooled
•
•
Stainless Steel Casing
•
3-Way Mixing Valve with Electric Actuator
DX Cooled
•
Split interlaced, Dual Distributer Coil(s)
•
•
•
R-22 Type Refrigerant
•
Other Refrigerants
Thermostatic Expansion Valve
•
Remote Air Cooled Condensing Unit
•
Std
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Opt
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Opt
Post Cool Module
•
•
•
DX
•
•
•
•
•
•
•
Galvanized Steel Casing
Cooled
Split interlaced, Dual Distributor Coil(s)
Other Refrigerants
Pre-Heat Module
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
•
•
Electric
•
•
•
•
Air Proving Switch
Steam
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Std
Std
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Std
Std
Std
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Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
•
•
•
2-Way Valve with Electric Actuator
Hot Water
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
•
•
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
•
Opt
Opt
Opt
Opt
Opt
Opt
3-3
-3000-77
“DHP” Model
-4250-107
-5500-107
-3750-122
-5500-122
-7250-122
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Pre-Cool Module
•
•
•
DX Cooled
•
Split interlaced, Dual Distributer Coil(s)
•
•
•
•
Other Refrigerants
•
•
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Post Cool Module
•
•
•
DX
•
•
•
•
•
•
•
Cooled
Split interlaced, Dual Distributor Coil(s)
Other Refrigerants
Pre-Heat Module
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
•
•
Electric
•
•
•
•
Air Proving Switch
Steam
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
•
•
•
2-Way Valve with Electronic Actuator
Hot Water
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
•
•
•
-2750-107
3-4
“DHP” Model
Post Heat Module
-750-55
-1150-55
-1500-55
-1500-77
-2250-77
-3000-77
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
•
•
Hot Water
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
•
•
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
•
Opt
Opt
Opt
Opt
Opt
Opt
•
•
Electric
•
•
•
Air Proving Switch
Steam
Process Blower Module
•
•
Spring Isolated Blower
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
•
Opt
Opt
Opt
Opt
Opt
Opt
Std
Std
Std
Opt
Std
Opt
Opt
Std
Std
Std
Opt
Std
Opt
Opt
Std
Std
Std
Opt
Std
Opt
Opt
Std
Std
Std
Opt
Std
Opt
Opt
Std
Std
Std
Opt
Std
Opt
Opt
Std
Std
Std
Opt
Std
Opt
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Std
Std
Std
•
•
•
•
•
•
•
- All Aluminum Construction
Outdoor Rated
Structural Rail Mounting
Single Wall Construction
Double Wall Construction with 2” Insulation
Left Side Process Air Outlet
Right Side Process Air Outlet
Interior Lights and Convenience Outlet
Process Air Inlet
•
•
Flanged
Weather Hood with Screen
Process Air Outlet
•
•
Flanged
Manual Damper with Locking Handle
Reactivation Air Inlet
•
•
Flanged
Reactivation Air Outlet
•
•
•
Flanged
Paint- Industrial/ Marine, High Gloss
•
Pewter
Std
•
Other
-----------------------------------Consult Factory----------------------------------
3-5
Configurable Features (cont.) “DHP” Model
-5500-107
-3750-122
-5500-122
-7250-122
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
•
•
Hot Water
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
•
•
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
•
Opt
Opt
Opt
Opt
Opt
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Std
Opt
Std
Opt
Opt
Std
Std
Std
Opt
Std
Opt
Opt
Std
Std
Std
Opt
Std
Opt
Opt
Std
Std
Std
Opt
Std
Opt
Opt
Std
Std
Std
Opt
Std
Opt
Opt
Std
Std
Std
Opt
Std
Opt
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Opt
Std
Std
Std
Std
Std
•
•
Electric
•
•
•
Air Proving Switch
Steam
Process Blower Module
•
•
•
Spring Isolated Blower
•
•
•
•
•
•
•
-4250-107
Post Heat Module
-2750-107
DHP Series Dehumidifiers
- All Aluminum Construction
Outdoor Rated
Structural Rail Mounting
Single Wall Construction
Double Wall Construction with 2” Insulation
Left Side Process Air Outlet
Right Side Process Air Outlet
Interior Lights and Convenience Outlet
Process Air Inlet
•
•
Flanged
Process Air Outlet
•
•
Flanged
•
•
Flanged
Reactivation Air Outlet
•
•
•
Flanged
Paint- Industrial/ Marine, High Gloss
•
Pewter
Std
•
Other
-----------------------------------Consult Factory----------------------------------
3-6
“DHP” Model
-750-55
-1150-55
-1500-55
-1500-77
-2250-77
-3000-77
Power
•
•
•
Std
460/3/60
Opt
(230/208)/3/60
Opt
575/3/60
(1) Provided Only with Gas and Steam Reactivation Units
Std
Opt
Opt
Std
Opt
Opt
Std
Opt (1)
Opt
Std
Opt (1)
Opt
Std
Opt (1)
Opt
Disconnects
•
•
•
None
Knife, Non-fused, NEMA-3R
Knife, Fused, NEMA-3R
Std
Opt
Opt
Std
Opt
Opt
Std
Opt
Opt
Std
Opt
Opt
Std
Opt
Opt
Std
Opt
Opt
•
•
Rotary Switch, Cabinet Mounted
Circuit Breaker, Cabinet Mounted
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Std (2)
Std (2)
Opt
Opt
Std (2)
Std (2)
Opt
Opt
Std (2)
Std (2)
Opt
Opt
Std (2)
Std (2)
Opt
Opt
Std (2)
Std (2)
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Std
Std
Opt (3)
Opt
Std (2)
Std (1)
Std (1)
Std
Std
Opt (3)
Opt
Std (2)
Std (1)
Std (1)
Std
Std
Opt (3)
Opt
Std (2)
Std (1)
Std (1)
Std
Std
Opt (3)
Opt
Std (2)
Std (1)
Std (1)
Std
Std
Opt (3)
Opt
Std (2)
Std (1)
Std (1)
Std
Std
Opt (3)
Opt
Std (2)
Std (1)
Std (1)
Safety
•
•
•
•
Std (2)
Overheat Protection
Std (2)
Reactivation Air Proving
Opt
Emergency Stop
Opt
Voltage/Phase Monitor
(2) Provided Only with Electric and Gas Reactivation Units
Capacity Control Method
D-Stat II
•
Duct Mounted Control Sensor Provision
•
Wall Mounted Control Sensor Provision
H-Trac
•
•
Dew-Trac
•
•
C-Trol II
•
Control Sensor Provision
Status Monitoring Indicator Lights
•
•
•
•
•
•
•
Power On (White)
Unit On (Green)
Motor Fault (Red)
Rotor Rotation Fault (Red)
High Reactivation Temp (Red)
Air/Gas Fault (Red)
Burner Fault (Red)
(1) Provided Only With Gas Reactivation Units; (2) Provided Only With Electric & Gas Reactivation Units;
(3) Provided As Standard On Steam Reactivation Units Only
Customer Interface Terminals
•
•
•
•
•
•
Process Blower Interlock Dry Contact
Remote Start/Stop Contact
Summary Fault Dry Contact
Process/Reactivation Dirty Filters Dry Contact
Process Air Proving Dry Contact
Reactivation Air Proving Dry Contact
Std
Std
Opt
Opt
Opt
Opt
Std
Std
Opt
Opt
Opt
Opt
Std
Std
Opt
Opt
Opt
Opt
Std
Std
Opt
Opt
Opt
Opt
Std
Std
Opt
Opt
Opt
Opt
3-7
Std
Std
Opt
Opt
Opt
Opt
“DHP” Model
-2750-107
-5500-107
-3750-122
-5500-122
-7250-122
Std
Opt (1)
Opt
Std
Opt (1)
Opt
Std
Opt (1)
Opt
Std
Opt (1)
Opt
Std
Opt (1)
Opt
Power
•
•
•
Std
460/3/60
Opt (1)
(230/208)/3/60
Opt
575/3/60
(1) Provided Only with Gas and Steam Reactivation Units
Disconnects
•
•
•
None
Knife, Non-fused, NEMA-3R
Knife, Fused, NEMA-3R
Std
Opt
Opt
Std
Opt
Opt
Std
Opt
Opt
Std
Opt
Opt
Std
Opt
Opt
Std
Opt
Opt
•
•
Rotary Switch, Cabinet Mounted
Circuit Breaker, Cabinet Mounted
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Std (2)
Std (2)
Opt
Opt
Std (2)
Std (2)
Opt
Opt
Std (2)
Std (2)
Opt
Opt
Std (2)
Std (2)
Opt
Opt
Std (2)
Std (2)
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Opt
Std
Std
Opt (3)
Opt
Std (2)
Std (1)
Std (1)
Std
Std
Opt (3)
Opt
Std (2)
Std (1)
Std (1)
Std
Std
Opt (3)
Opt
Std (2)
Std (1)
Std (1)
Std
Std
Opt (3)
Opt
Std (2)
Std (1)
Std (1)
Std
Std
Opt (3)
Opt
Std (2)
Std (1)
Std (1)
Std
Std
Opt (3)
Opt
Std (2)
Std (1)
Std (1)
Safety
•
•
•
•
Std (2)
Overheat Protection
Std (2)
Reactivation Air Proving
Opt
Emergency Stop
Opt
Voltage/Phase Monitor
(2) Provided Only with Electric and Gas Reactivation Units
Capacity Control Method
D-Stat II
•
•
H-Trac
•
•
Dew-Trac
•
•
C-Trol II
•
Control Sensor Provision
-4250-107
Status Monitoring Indicator Lights
•
•
•
•
•
•
•
Power On (White)
Unit On (Green)
Motor Fault (Red)
Rotor Rotation Fault (Red)
High Reactivation Temp (Red)
Air/Gas Fault (Red)
Burner Fault (Red)
(1) Provided Only With Gas Reactivation Units; (2) Provided Only With Electric & Gas Reactivation Units;
(3) Provided As Standard On Steam Reactivation Units Only
Customer Interface Terminals
•
•
•
•
•
•
Process Blower Interlock Dry Contact
Remote Start/Stop Contact
Summary Fault Dry Contact
Process/Reactivation Dirty Filters Dry Contact
Process Air Proving Dry Contact
Reactivation Air Proving Dry Contact
Std
Std
Opt
Opt
Opt
Opt
Std
Std
Opt
Opt
Opt
Opt
Std
Std
Opt
Opt
Opt
Opt
Std
Std
Opt
Opt
Opt
Opt
Std
Std
Opt
Opt
Opt
Opt
Std
Std
Opt
Opt
Opt
Opt
3-8
Guide Specifications - Standard Equipment
QUALITYASSURANCE
(ISO 9001:2001 Registered)
Guide Specifications -
SATS operates in an ISO 9001
registered quality control environment. Each SATS employee
is committed to satisfying his or
her customer expectations with
the highest level of consistent,
measurable and continuous
quality improvement.
GENERAL GUIDE
SPECIFICATIONS
moisture removal at an entering
air temperature condition of ___
°F DB / ___ °F WB, ___°F Dew
Point (___ % RH).
The DHP unit shall be of similar
design and construction as
proven in previous applications by
a minimum of ten years operating
experience. All system components except the desiccant rotor
shall have provisional warranty
coverage for a period of 2 years
after installation. The rotor shall
be warranted for a period of 5
years against softening or collapse due to exposure to humid
air.
General Description
Standard Equipment
The dehumidification system shall
be a desiccant dehumidifier designed to provide precision humidity control to a space or process
application. The dehumidifier and
options selected shall be factory
assembled, tested and shipped
complete with all components as
described here-in to maintain the
specified humidity level within the
intended space or to maintain the
discharge outlet within the design
load limits of this project. The
dehumidifier shall include a high
performance silica gel desiccant
rotor, process air blower, reactivation air blower, reactivation heater,
positive drive rotor drive system
and all necessary controls for
continuous and safe unattended
operation.
The system cabinet shall be
designed for outdoor installation
and year round service. The
system shall require only connection of ductwork, utilities, remote
sensors and/or control signals
unless shipping splits are indicated.
At a process air flow rate of
______ SCFM, the system shall
provide ___ lb/hr (___ Gr/lb)
4-1
The dehumidification system
manufacturer shall be an ISO9001 registered company. The
system shall be a model DHP_________ DESICAiR dehumidifier as manufactured by Stulz Air
Technology Systems, Inc. (SATS)
in Frederick, Maryland, USA.
Desiccant Rotor
The desiccant rotor shall consist of
a high temperature, corrugated,
synthetic fiber substrate media with
a non-migrating, water selective
silica gel desiccant uniformly and
permanently encapsulated in the
matrix structure of the media. The
silica gel desiccant shall have
uniform macro-pore openings.
The high performance silica gel
desiccant shall remove water
vapor from the passing airstream
at the rate specified in the schedule. Nominal face velocity shall not
exceed 800 fpm. The silica gel
shall be bonded to the substrate in
such a way that the entire rotor
surface shall be active as a desiccant. The desiccant shall not be
loose within the rotor. Rotors with
granular or coated desiccants shall
not be acceptable. Dehumidifiers
requiring either “topping off” or reimpregnation of the desiccant shall
not be acceptable.
Desiccant
Dehumidification
The dehumidifier shall be of the
non-cycling type with dry nongranular, non-deliquescent, noncorrosive, non-toxic silica gel
desiccant. The unit shall provide
for continuous dehumidification
with concurrent reactivation of the
desiccant. The blower arrangement shall provide counter flow of
the process and reactivation air
streams.
The dehumidification process
shall be by adsorption. Absorption type desiccants such as
lithium chloride or other salt type
sorption materials which require a
change in state for the dehumidification process shall not be acceptable.
The rotor shall be an extended
surface contactor with a plurality of
parallel flutes and have laminar air
flow characteristics. The rotor shall
be manufactured by winding
continuous, alternating layers of
corrugated and flat sheets to form
a strong fluted shaped rotor. The
rotor shall be fabricated to include
mechanical support of the media
and shall have an external sheet
metal wrapper to encase the
Guide Specifications - Standard Equipment
The desiccant rotor shall not be
adversely affected by exposure to
air even at 100% relative humidity
or to prolonged storage or intermittent use in humid atmospheres.
The desiccant dehumidification
rotor shall be capable of sustained
operation with either the process
or the reactivation blower operating without reactivation heat
applied.
The rotational speed shall be
designed for the maximum dehumidification effectiveness per the
manufacturer’s performance data
and to prevent wave front break
through at design conditions. The
desiccant rotor shall be shaft
supported with ball bearings
Rotor Drive
The desiccant rotor shall be belt
driven from a fractional horsepower gear motor. The rotor drive
system shall be provided with all
the necessary components for
continuous slip free operation.
The drive system shall consist of a
fixed speed motor, speed reducer
and a reinforced flexible drive belt
and belt tensioner. The speed
reducer shall have lifetime lubrication and not require field or periodical maintenance lubrication.
A motor starter shall be provided
and wired by the manufacturer.
The rotation shall be continuous.
Intermittent operation or indexing
shall not be permitted.
The rotor shall be shaft supported
by ball bearings for long life and
low maintenance. Ball bearings
shall be sized to support the rotor
at full saturated weight without
inducing stress on the rotor’s outer
wrapper or flutes. The dehumidification rotor shall not be mounted
on casters or rollers.
Rotor Pressure Drop
Gauges:
Pressure indication gauges shall
be provided to indicate the pressure drop across the rotor. Separate gauges and static pressure
tips shall be installed for process
and reactivation air streams.
The gauges shall be externally
mounted on the cabinet. The
gauges shall be suitable for either
indoor or outdoor service and
have 4-1/2" face and analog dial.
The scale shall be selected such
that the design pressure indication
is within the mid-range of the
gauge. The DHP unit manufacturer shall provide a Technical Data
Sheet which shall state the expected pressure drop for each air
stream. The Technical Data Sheet
shall be included with the Operations & Maintenance manual
provided with each unit.
Rotor Air Seals
The process and reactivation
sectors shall be provided with air
seals to prevent cross leakage.
The seals shall prevent leakage
from one air stream to the other.
A seal shall be installed against a
flange mounted on the periphery
of the rotor to prevent air from bypassing the rotor. Seals shall be
mounted on both the entering and
leaving face of the rotor. Balloon
or bulb type seals are not acceptable.
Seals shall provide minimum
leakage up to 8” w.c. pressure
differential.
Blowers/Motors
Process Blower:
The process air blower shall be
centrifugal type with a continuous
welded housing, unless otherwise
specified. The blower shall be
sized for the air requirements and
static pressure as indicated in the
submittal.
Belt driven blowers shall include a
minimum of two drive belts. An
adjustable sheave shall be provided for two belt drives and it shall
be selected such that the operating rpm does not exceed 90% of
the blower maximum speed.
Process air blowers shall be
mounted on nominal 2” deflection,
spring vibration isolators. The
process blower housing and shaft
shall be sealed to prevent moisture
infiltration into the dehumidification
system. The blower motor shall be
TEFC. An IEC style motor starter
with branch circuit protection shall
be included and wired at the
factory.
Standard Equipment
The rotor shall be able to be
cleaned with either warm water or
detergent wash without damage or
loss of desiccant. The desiccant
shall retain a minimum of 95% of
its working capacity after ten years
continuous service with proper
maintenance and care.
Removal of the rotor shall not be
required to replace the drive belt
or seals.
media. The rotor shall be 200 mm
thick in the direction of airflow to
minimize airflow pressure drop.
Dehumidifiers requiring either
“topping off” or re-impregnation
are not acceptable.
4-2
Guide Specifications Process Blower Motor:
The process blower/motor assembly shall be sized to provide
______ CFM @ ______ inches
static pressure.
Reactivation Blower:
Standard Equipment
The reactivation air blower shall be
a direct drive centrifugal type with
a welded housing. The blower shall
be sized for the air volume and
external static pressure as indicated in the submittal. The blower
motor shall be TEFC. An IEC style
motor starter with branch circuit
protection shall be included and
wired at the factory.
Reactivation Blower Motor:
The reactivation heater blower/
motor assembly shall be sized to
provide ______ CFM @ ______
inches static pressure.
Reactivation Heater
The reactivation heat source shall
be electric, steam or direct fired
natural gas as specified on the
schedule. The reactivation heat
shall be of sufficient capacity to
ensure the complete and continuous reactivation of the desiccant
during summer or winter operation
of the dehumidifier.
The reactivation heater shall be
selected to satisfy the summer and
winter performance requirements
per the schedule and shall be
completely factory assembled.
The reactivation heater shall be
4-3
Standard Equipment
housed in an insulated enclosure
to minimize heat loss and to
prevent incidental contact with hot
surfaces by operating or service
personnel.
Electric:
Electric heaters shall include a
high temperature cut out. The
sensor shall be located between
the heater section and the rotor
inlet. A summary fault light located
on the operator’s panel shall be
illuminated in the event of an
overheat occurrence. A manual
reset shall be required in order to
prevent attempted repeated
operation by automatic resetting
devices in a fault condition.
Electric heaters shall be staged
not to exceed 48 amps per branch
and circuit protection shall not be
greater than 60 amps in accordance with the National Electric
Code.
Electric heaters shall be open Nichrome wire elements with a
wattage density of less than 35
watt/in2 of heater element cross
sectional area. Heater elements
shall be mounted in 304 stainless
steel frames and have ceramic
insulators. Heater wire running
from the heater contactor to the
heater terminal box shall be rated
for 200oC service.
Electric heaters shall be controlled
by an adjustable solid state proportional control system designed
to prevent overheating and to
provide energy conservation. A
cool down purge shall be incorporated to operate the reactivation
blower for a minimum of 5 minutes
whenever the heater is de-energized by the controls.
An air proving switch shall be
installed in the reactivation air
stream and connected in series
with the reactivation heater to
prevent the heater from energizing
in the event of loss of air flow.
Natural Gas:
Direct fired natural gas reactivation
heaters shall include all the necessary controls to detect, monitor
and regulate the gas flame and
reactivation temperature as required. Automatic modulation of
the gas supply shall be included by
the dehumidifier manufacturer.
Gas supply pressure shall range
from a minimum of 10” w.c. to a
maximum of 14” w.c.
Controls shall include an air
proving switch which is wired in the
heater control circuit to prevent the
heater from operating in the event
of reactivation air flow loss. The
DHP unit heater controller shall
limit the reactivation temperature
as well as regulate the reactivation
outlet temperature. The pilot flame
shall be adjusted and set independent of the main gas flame. Separate gas pressure regulator valves
shall be provided for the pilot and
main gas line. A spark ignition
system and a listed flame safety
relay shall be utilized. Both high
gas and low gas pressure cut-outs
shall be provided.
The gas components and controls
shall be in accordance with NFPA
guidelines. Compliance to local
codes for venting or other installation regulations is the responsibility
of the installing contractor.
Steam Reactivation:
Steam reactivation coils shall be
housed in an insulated enclosure
to ensure maximum thermal transfer to the reactivation air stream
and to comply with OSHA regulations concerning personnel safety
protection from hot surfaces.
Steam reactivation coils shall be
the non-freeze steam distributing
Coil connections shall be stubbed
out through the reactivation
cabinet. A bulkhead seal shall be
used to seal the pipe penetration.
Steam fittings and piping shall be
provided and installed by others.
The DHP unit cabinet shall be
constructed of formed 0.125" thick
5052 grade aluminum for corrosion
protection. The cabinet modules
shall be of formed sections, welded, sealed and painted. Modules
are welded and sealed together on
a unitized skid. Unit air leakage
shall be less than 1% of design
airflow rate measured at 8” w.c.
negative static pressure. The DHP
manufacturer shall provide
plugged floor drains in each
section of the process air side of
the unit.
Double wall, insulated cabinets are
available. See Optional Features
Guide Specifications.
Paint:
The cabinet shall be painted with a
durable high gloss protective
coating. The coating shall be
pewter in color and shall be
weather and chemical resistant.
The coating shall be applied to
provide a finish with a minimum dry
film thickness of 3 mils.
Hinged access doors shall be
provided on at least one side of
the cabinet in order to allow
service of all major internal components. A minimum of two latches,
operable from either inside or
outside, are included per access
door. Access door handles shall
be tool operated, non-locking
type. Latching systems shall be
the roller cam type for smooth
operation, less friction to door
seal, and increase ramp-up to
allow for more seal compression.
Hinge shall be stainless steel type
piano hinge.
Skid
The dehumidifier shall include a
skid adequate to support the full
operating weight of the unit and to
allow for rigging, transportation
and handling at the job site as well
as leveling at installation. Lifting
points shall be provided to assist
in loading and placing the DHP
unit at the job site. Non-conducting
galvanic isolation is required
between dissimilar materials of the
skid and cabinet.
Air Connections
Access doors are available with an
optional 8” x 8” clear viewing
window. See Optional Features
Guide Specifications.
Test Ports:
Probe style test ports shall be
provided as standard. Ports shall
be located to allow for the measurement of temperature and
humidity both upstream and
downstream of air “conditioning”
components including the desiccant rotor, cooling and/or heating
coils, and/or humidifier. A single
port shall be mounted to allow for
air temperature measurement
between the reactivation heater
and rotor.
Standard Equipment
The reactivation leaving temperature shall be automatically maintained at setpoint by modulating
the reactivation inlet damper to
vary the reactivation air volume.
The damper shall be a low leakage
type with high temperature silicone
edge seals, stainless steel bushings and a solid state controlled
direct shaft mounted actuator.
Access Doors:
type with NPT pipe connections,
0.049" thick copper tubes, 0.0075
aluminum fins with maximum 12
fins per inch, copper header,
galvanized casing. Coils shall be
pressured tested to 300 psig and
rated for 150 psig maximum
operating pressure. Face velocity
shall not exceed 800 fpm.
Standard Equipment
All air connections shall be square
or rectangular with turned out
interface flanges. Flanges shall be
blank for match drilling in the field
by the installing contractor.
Protective weather hoods or
louvers for outdoor air connections
are available. See Optional Features Guide Specifications.
4-4
Dampers
Controls
A manually adjustable balancing
damper shall be provided on the
reactivation blower outlet and on
direct drive process blowers to
allow for setting the air flow volume. The damper shall be mounted on a steel shaft with a bronze
bushing. A locking arm with a
positive locking mechanism shall
be provided.
In the AUTO mode all components
shall operate automatically and
continuously as described in ON
mode below. Also, the unit is
permitted to be enabled and
disabled remotely. In the OFF
mode all motors, drives and
heaters shall be de-energized.
Upon shut down of the
dehumidifier, the process blower
and reactivation heater shall be
de-energized; for electric and gasfired reactivated units, the rotor
drive and reactivation blower shall
continue to operate during a cool
down cycle to remove residual
heat from the rotor and
reactivation sector.
Standard Equipment
Proper flow shall be determined by
setting the static pressure drops
across the desiccant rotor to a
pre-determined value as shown on
static pressure gauges. A Technical Data Sheet which includes the
specified pressure drops for each
air stream shall be included by the
manufacturer with the Installation
Operation & Maintenance manual
furnished with the unit.
Filters
Process Inlet Filter:
The process air inlet shall have 2
inch thick, pleated disposable
filters rated at a minimum of 30%
efficiency per ASHRAE Standard
52-76.
Reactivation Inlet Filter:
The reactivation air inlet shall have
2 inch thick, pleated disposable
filters rated at a minimum of 30%
efficiency per ASHRAE Standard
52-76.
4-5
Standard Equipment
In the ON mode the dehumidifier
shall be controlled by (specify one
of the following):
D-Stat II™:
The dehumidifier control shall
compare the conditioned space
humidity to the humidity setpoint.
The process air blower will remain
operating while the reactivation
components cycle off in response
to the measured humidity.
H-Trac™:
The reactivation heater shall
respond to a proportional control
signal from the unit controller to
modulate the dehumidifier capacity. The H-Trac control shall
automatically regulate the reactivation heater to provide a constant relative humidity of either the
process air or “space” condition.
The controller shall proportionally
regulate the reactivation heater to
maintain the set point value. Face
and by-pass dampers shall not be
used for capacity modulation.
Dew-Trac™:
The temperature and humidity of
the conditioned air or space is
measured and the corresponding
dewpoint is calculated by the DHP
unit controller. The Dew-Trac
control shall automatically regulate
the reactivation heater to provide
a constant dew point temperature
of either the process air or space
condition.
The controller shall proportionally
regulate the reactivation heater to
maintain the set point value. Face
and by-pass dampers shall not be
used for capacity modulation.
C-Trol II™:
The reactivation heater shall
respond to a control signal from
the unit controller which compares
a cold surface temperature to
ambient dew point temperature.
The C-Trol control shall automatically regulate the reactivation
heater to prevent condensation
from forming on cold surfaces. The
process air blower runs continuously in the AUTO mode to provide
a circulating air current within the
space.
System Controller
The unit shall be controlled by a
stand alone controller. The controller shall be configurable to
meet the specific application. The
DHP unit controller shall be mounted in a NEMA 4 enclosure.
DHP unit controllers are capable
of remote communications via
available options. See Optional
Features Guide Specifications.
Guide Specifications Electrical Components& Wiring
Practice
Status indicator lights are mounted
on the electrical enclosure front
panel. Lights are LED with an
expected life of up to 50,000
hours. Power On and Fault lights
are provided as a minimum.
Indicator lights, other than Power
On, have a “press-to-test” feature
to verify functionality
All wiring shall be run in flexible
liquid tight conduit. Wires shall be
numbered at both ends. The wire
harness shall be neatly arranged
and tie wrapped.
Pre-/Post Cooling Coils
Cooling coils shall be housed in
insulated sections. Coils shall be
accessed through the modules
before and after the cooling coil
modules and shall be removable
through assembly panels.
Coils shall be provided with insulated 304 stainless steel drain
pans extending at least 12 inches
downstream of the coil. The pan
shall be sloped in the direction of
air flow for positive drainage. The
face velocity of wet surface cooling
coils shall not exceed 500 fpm.
All coils including dry surface coils
shall be provided with a drain pan
to assist moisture removal at startup and during operation. Condensate drains for wet surface coils
shall be provided with factory
drains lines which shall be extended through the cabinet for
field connection of traps and
additional drain lines. Condensate
drains for dry surface coils shall
be extended through the cabinet
and provided with a factory installed removable threaded cap.
Chilled Water Coils
Chilled water cooling coil supply
and return connections shall be
external of the cabinet.
Pre-Cooling:
Pre-cooling coils for chilled water
or glycol service shall have a
maximum of 10 fins per inch,
0.075" thick aluminum fins, .025"
thick copper tubes, copper headers and stainless steel casings.
Post Cooling:
Post cooling coils for chilled water
or glycol service shall have a
maximum of 12 fins per inch,
0.075" thick aluminum fins, 0.025"
thick copper tubes, copper headers and galvanized steel casings.
DX Type Coils
DX type cooling coil connections
shall be internal of the cabinet.
Pre-Cooling:
Pre-cooling evaporator coils for
DX refrigerant type R-22 service
shall have a maximum of 10 fins
per inch. Coil circuiting shall be
split interlaced with two distributors.
Post Cooling:
Post cooling evaporator coils for
DX refrigerant type R-22 service
shall have a maximum of 12 fins
per inch. Coil circuiting shall be
split interlaced with two distributors.
Pre-/Post Heating
Pre-/post heating coils are provided in 24” wide cabinets.
Electric Heaters
Electric heaters shall include a
high temperature cut out. The
sensor shall be located in the
heater section. A fault shall be
signaled in the event of an overheat occurrence. A manual reset
shall be required in order to
prevent attempted repeated
operation by automatic resetting
devices in a fault condition.
Electric heaters shall be staged
not to exceed 48 amps per branch
and circuit protection shall not be
greater than 60 amps in accordance with the National Electric
Code. Electric heaters shall be
open Ni-chrome wire elements with
a watt density of less than 35 watt/
in2 of heater element cross sectional area. Heater elements shall
be mounted in 304 stainless steel
frames and have ceramic insulators. Heater wire running to the
heater terminal box shall be
insulated and shall be rated for
200oC. service. Electric heaters
shall be controlled by an adjustable solid state proportional
control system. The pressure drop
accross the electric pre-/post
heating coils is approximately 0.1”
w.c.
Standard Equipment
All controls components shall be
mounted in a NEMA 4 UL listed
electrical control enclosure. A
ground lug connection shall be
provided in the electrical enclosure. The main control panel shall
be UL508A listed.
The face velocity of dry surface
cooling coils shall not exceed 600
fpm.
Wiring practices, branch circuit
protection, motor starters and
overload protection shall be in
accordance with the National
Electric Code. IEC style motor
contactors equipped with motor
circuit controllers, and auxiliary
contacts shall be provided.
Standard Equipment
Steam Coils
Steam heating coils shall be the
non-freeze steam distributing type
with NPT steel pipe connections
brazed to copper headers, 0.049"
thick copper tubes, 0.075 aluminum fins with maximum 12 fins per
inch, copper header, galvanized
casing. Coils shall be pressured
4-6
tested to 300 psig and rated for
150 psig maximum operating
pressure. Face velocity shall not
exceed 800 fpm. Coil connections
shall be stubbed out through the
cabinet. A bulkhead seal shall be
used to seal the pipe penetration.
Steam fittings, piping, and insulation shall be provided by the
installing contractor in accordance
with the schedule. The pressure
drop across the steam pre-/post
w.c.
Standard Equipment
Hot Water Coils
Hot water heating coils for water or
glycol service shall have a maximum of 12 fins per inch, 0.075"
thick aluminum fins, 0.025" thick
copper tubes, copper headers and
galvanized steel casings. Coil
supply and return connections
shall be external of the cabinet. A
bulkhead seal shall be used to
seal the pipe penetration.
Valves, fittings, piping, and insulation shall be provided by the
installing contractor in accordance
with the schedule. The pressure
drop across the electric pre-/post
w.c.
Standard Equipment
Power Supply
Submittal Data
The power service provided by the
owner shall be:
460/3/60
The dehumidifier manufacturer
shall submit _______ sets of
drawings and technical data for
approval by the Engineer.
Other operating voltages and
frequencies are available. For
optional voltage operation, please
contact SATS.
Warranty
The dehumidifier shall include a
conditional, limited parts warranty
for 24 months from the date of
shipment for mechanical and
electrical components when a
completed start-up form, provided
by the manufacturer, is returned by
the owner. The warranty shall
include repair or replacement of
parts which may be defective in
either material or workmanship.
(Some restrictions may apply.)
The desiccant rotor shall be covered by a 60 month limited warranty against softening or collapse due
to exposure to even 100% humid
air. The rotor warranty shall be
included at no additional expense
and shall commence from the date
of shipment.
The data shall consist of:
1. Installation diagram including
outline dimensions of the unit and
utility connection locations.
2. Component layout diagram
showing the location of all major
components.
3. Electrical diagram showing
point-to-point wire connections.
4. Technical data sheet showing
the performance characteristics of
the unit including moisture removal rate, air pressure loss through
the rotor and energy consumption
as a minimum.
5. Air flow diagram showing
thermodynamic and psychrometric
values at each station.
Approved Manufacturer
The dehumidifier manufacturer
must have a minimum of 15 years
of industry experience. The
dehumidifier shall be DESICAiR
DHP Series as manufactured by
Stulz Air Technology Systems, Inc.
Frederick, Maryland.
Dry Handler Plus
(Model DHP-1500-55-E Shown with Optional, Self Contained Condensing Unit)
4-7
Microprocessor Control -
D-Tech-20
D-Tech-20 Series Controls
Advanced Microprocessor
Humidity & Dewpoint
Controller with Alarms
(Note 1: Dependent on unit configuration options selected.
LOG, SCREENSAVER MODE
timeout, Input/Output statuses, &
an EVENT LOG.
•
ALARM LOG:
Provides a history of the last 25
alarms that occurred on the unit.
•
SET DATE/TIME:
Allows the date & time to be
changed.
•
INFORMATION ABOUT:
Provides information on how to
contact SATS.
Optional Sensors:
•
Optional Process Air Outlet
Temperature & Humidity Sensor:
Qty. 1(one) ±2% 4-20mA
process temperature/humidity
sensor.
•
Optional Process Air Outlet
Temperature & Humidity Sensor:
Qty. 1(one) ±1% 4-20mA.
Display / Keypad
System Setup & Adjustments
The D-Tech-20 shall require only six
operation buttons to navigate and
control the system and features an
easy to read, built-in 4 X 20 character
LCD; not to mention the option to add
a remote wall-mounted keypad/
display. A scrolling menu shall allow
an operator to effortlessly select unit
functions for viewing and customizing;
as well as password protection on
those levels that configure the unit.
The D-Tech-20 shall be completely
factory pre-programmed via flashmemory, and therefore, most applications shall not require field setup. The
“default” setpoints and user parameters shall be field adjustable.
The system shall include the following
MAIN MENU selections for the
operator:
System Status Data
(Systems Information Only)
The D-Tech-20 shall display current
unit operational functions and air
temperature & humidity conditions:
System Status: (if applicable)
• Local-On, Remote-On, Alarm
• Actual Dewpoint & Dewpoint
Setpoint (if applicable)
• Actual Humidity & Humidity
Setpoint
• Process Temperature
• Process Inlet Temperature &
Humidity
• Process Inlet Enthalpy &
Capacity Percentage
• Actual Pre-Cool/Pre-Heat
Temperature
• Actual Reactivation Heater
Temperature & Heater
Response Percentage
• Actual Reactivation Air Leaving
Temperature
•
SYSTEM STATUS DATA:
Provides real-time information
about the system’s current mode
and operation.
•
MOTOR RUN TIMES:
Provides unit & component runtimes.
•
SETPOINTS/TUNING:
Supplies operator with the unit’s
adjustable control parameters (i.e.
setpoints, proportional bands,
integral bands, differentials).
The D-Tech-20 shall automatically
initialize SCREENSAVER MODE and
rotate the above information if no
action is taken at the user interface.
Factory Installed Sensors:
• Reactivation Temperature
Probes: Qty. 2(two) PT1000
•
CALIBRATE READINGS:
Allows operator to calibrate
sensor readings.
Alarm Conditions
•
Process Inlet Temperature &
Humidity Sensor: Qty. 1(one)
±3% 4-20mA , (see note-1)
•
•
Pre-Rotor Temperature Sensor:
1 (one) ±3% 4-20mA pre-rotor
temperature sensor, (See Note 1)
Display/Sensor Options
Display Location Options:
The D-Tech-20 user-interface display/
keypad shall be factory unit mounted
in a weather-resistance enclosure.
Temp/Humid Sensor Options:
The D-Tech-20 control system shall
include the following factory provided
temperature and humidity sensors:
PROGRAM CONTROLLER:
Supplies operator adjustable user
parameters such as: Password
modification, SUMMARY ALARM
association, Clearing the ALARM
Microprocessor Control
The Dry Handler Plus desiccant
dehumidification system shall be
provided with SATS’ D-Tech-20
advanced humidity and dewpoint
microprocessor controller. The
controller incorporates a “user-friendly”
operating environment to allow easy
system setup and operation.
Field Installed Sensors:
• Process Outlet Temperature &
Humidity Sensor Qty. 1(one) ±3%
4-20mA process temperature/
humidity sensor, (See Note 1)
Alarm conditions shall activate a
visual indicator and, if associated,
shall close a SUMMARY ALARM
contact connection.
4-8
Microprocessor Control The D-Tech-20 shall alert to the
following alarm conditions (if applicable):

Rotor Rotation Fault
Loss of Process Air Flow
Loss of Reactivation Air Flow
Dirty Pre-Filter on the Process Air
Dirty Post-Filter on the Process Air
Dirty Filter on the Reactivation Air
Burner Fault
Low Process Inlet Air Temperature
Gas Pressure Fault
High Reactivation Air Temperature
Low Reactivation Air Temperature
Specific Sensor Failure
Loss of Power
Emergency Mode Shutdown
The operator shall be able to select
which alarms are enabled or disabled.
Microprocessor Control
Summary Alarm Contacts:
A 24 VAC normally open or closed
summary alarm signal contact
connection shall be provided for
remote indication of a SUMMARY
ALARM condition. The operator shall
be able to configure which alarms are
associated with the SUMMARY
ALARM.
Alarm Log:
The last 25 alarms, including the time
& date of the alarm shall be viewable
through an operator interface function.
The operator shall be able to clear the
ALARM LOG.
Event Log
The D-Tech-20 shall display the last
50 events the system logged. The
following events shall be logged by the
system:

All alarms listed above
Unit ON & OFF Status
Process Blower ON & OFF
Pre-Cooling ON & OFF
Reactivation Blower/Rotor ON & OFF
Pre-Heating ON & OFF
Reactivation Heat ON & OFF
Post-Cooling ON & OFF
Post-Heating ON & OFF
Password Levels Accessed
Control Inputs & Outputs
The D-Tech-20 shall be capable of both
digital (ON/OFF) and analog (propor-
4-9
D-Tech-20
tional integral, PI) control. Prior to
shipment, each Dry Handler Plus unit’s
D-Tech-20 shall be factory program
configured to match the unit’s system
requirements.
system parameters. The user shall
be required to provide a four-digit
password to access the unit’s setpoints, sensor calibrations and
configuration parameters.
Analog Outputs:
Screensaver Mode
The microprocessor shall incorporate a
“screensaver-mode” that automatically
and continuously scrolls through the
System Status Data Level

Reactivation Heater
Pre-Heat
Post Cool
Post Heat
Pre-Heat
Digital Outputs:

3 Pre-Cooling Stages
3 Post Cooling Stages
Process Blower
Reactivation Blower/Rotor Drive
Reactivation Heater
2 Heater Stages
Post Heat
Summary Fault
Pre-Heat
Enhanced Features
Remote Stop/Start
Included in the system’s electrical
control circuit shall be a 2-pin terminal
connection for remote stop/start
control of the dehumidifier.
Power Loss Restart
In the event power is lost to the
system, the D-Tech-20’s flash memory shall automatically enable the
system to restart when power is
restored, without the loss of the “last”
stored setpoints or other system
configuration settings.
Sequential Load Activation
To minimize the total in-rush current
during system start-up/restart, the DTech-20 shall be configured for timedelayed sequential start-up of the
Reactivation Heaters, the Pre-Cooling
stages, & the Post-Cooling stages.
Short Cycle Protection
DX Pre-Cooling and/or DX PostCooling compressors shall be protected from frequent compressor cycling
through the D-Tech-20’s minimum
compressor ON and OFF timers.
Security
Multiple security levels shall prevent
unauthorized adjustment of critical
The D-Tech-20 shall automatically
initiate an adjustable timer as soon as
one of the key-pad buttons is released.
If no action is taken for the adjustable
time delay, the controller shall automatically begin cycling all the screens
in the “System Status Data” level.
Control Modes
The D-Tech-20 can be factory configured for 4 different modes of control:
“D-Stat II”, “H-Trac”, “DEW-Trac” & CTrol II. These 4 configurations allow the
user to select if the Dry Handler Plus
operates by ON/OFF humidity control,
proportional humidity control, or
proportional dewpoint control.
Diagnostics & Service Mode
The microprocessor shall incorporate a
self-diagnostic algorithm that continually
tests system functions and hardware
operation. In the even of such a failure,
the user shall be alerted to the condition
via a visual and contact closure alarm.
Control Board:
Initiates a self-test of the control
system:
Output Diagnostics:
(Service Mode)
All microprocessor control inputs & outputs
can be manually controlled & tested at the
controller by a certified technician.

Pre-Cool Valve

Post-Cool Valve

Process Blw Motor
React Heaters

Pre-Cool Compr(s)
Post-Cool Compr(s)
Rotor Drive Motor
React Blw Motor
Alternate Sensor Replacement
In the event a sensor would need
immediately replaced, the D-Tech-20
provides the ability to change the signal
type on all the process sensors.
Optional Features - Guide Specifications
SELECTED OPTIONS
Desiccant Rotors
Air Inlet/Outlet Openings:
Process Inlet Protection
The process make-up air inlet shall
include a screened weather hood or a
flanged outlet with louvers where
required.
Molecular Sieve:
Preferred with low inlet % RH (<50%)
and/or when lowest possible outlet
dewpoints are required.
Weather Hood
Process Air Inlet
F1: High Efficiency 45% to 95% Filters
with 30% Pre-Filter
F2: HEPA Filters
Ultra High Efficiency:
Preferred when reactivation energy is
limited. Requires less reactivation
energy per pound of moisture removal
that the standard rotor.
Process Air Outlet
F1: High Efficiency 45% to 95% Filters
with 30% Pre-Filter
F2: HEPA Filters
Flanged w/ Louvers
Double Wall Cabinet:
The cabinet shall be double wall type,
constructed of 0.125" thick 5052
grade aluminum with an inner wall of
0.090" thick 5052 grade aluminum.
The cabinet shall be of unitized
formed sections. The gap between
the outer and inner wall shall be 2
inches. Two inch thick 3 lb density
fiberglass thermal insulation, with a
thermal heat transfer rate of less than
0.27 Btu/ft3/F, shall be installed to
prevent exterior cabinet condensation.
A thermal break shall be incorporated
between the inner and outer cabinet
walls to prevent through metal
contact. Unit air leakage shall be less
than 1% of design airflow rate measured at rated unit static pressure of
+10 inches w.c. The DHP manufacturer shall provide plugged floor drains in
each section of the process air side
of the unit.
Automatic Process Inlet Damper
The process make-up air inlet shall
include an opposed blade type openclosed damper. When the DHP unit is
energized the opposed blade damper
shall move to the fully open position.
Contact closure by the end switch
shall allow the DHP unit to be energized. When the DHP unit is deenergized the damper shall move to
the fully closed position.
Reactivation Inlet/Outlet Protection
(Note: Please consult your local SATS sales
representative if your application requires
F1or F2 filtration or for filtration other than
listed above.)
Dirty Filter Gauges:
Dirty filter condition shall be detected
by a factory mounted static pressure
indicating gauge, used to show the
pressure drop in w.c. across a
specified filter bank.
A static pressure gauge shall be
mounted on the front of the cabinet to
indicate pressure drop across the
following filter banks as specified:
G1:
G2:
G3:
Reactivation Outlet Hood
Optional protective weather hood with
screens are available for the reactivation outlet and for the reactivation
inlet.
Guide Specifications
Cabinet Options
Optional Air Filtration:
Dryhandler Plus systems are available
with high efficiency IAQ conscious
and HEPA filters. High efficiency filter
modules are 36” wide. The pressure
drop across the modules are 1.5” w.c.
for high efficiency and 2.0” w.c. for
HEPA filter modules. HEPA filter
applications should consult the
factory.
Optional Features -
SATS offers a selection of optional
desiccant rotor media designed
specifically for extreme applications.
Contact the factory regarding specific
application of these rotor medias.
Filtration
Process Air Inlet
Process Air Outlet
Dirty Filter Pressure Switches:
Dirty filter condition shall be detected
by a factory mounted, adjustable
differential pressure switch and
indicated on the unit controller.
An adjustable differential pressure
switch shall be provided to indicate
that the pressure drop has reached
an undesirable level across the
following filter banks as specified:
S1:
S2:
S3:
Process Air Inlet
Process Air Outlet
4-10
DX Air Cooled
Thermostatic Expansion Valve:
Optional Features -
Thermostatic expansion valves, for DX
cooling coils, are provided shipped
loose for installation by others.
Valves are externally equalized and
balanced port design whenever
possible. Solder connections are
standard.
Remote Condensing Unit:
A remote air cooled condensing unit
(RCU) rated for _____ tons of evaporator cooling capacity at 95 oF. condensing air temperature shall be
provided by the DHP unit manufacturer. Refrigeration controls and interface
shall be by the DHP unit manufacturer. The condensing unit shall include
the condenser coil, fan(s) and low
ambient head pressure controls if
required to operate below 50 oF.
ambient temperature; compressor
with crankcase heater if RCU is
installed outdoors; compressor
service valves; schrader type charging
valves; low pressure and high pressure controls; liquid line filter-drier;
sight glass and moisture indicator and
a suction line accumulator.
Water/Glycol Cooled
Pre & Post Cooling Chilled Water
Control Valves:
Systems incorporating Chilled Water
(Glycol) Pre and/or Post Cooling Coils
shall have 3 way mixing valves, with
proportional electric actuators provid-
4-11
ed as an option and shipped loose for
installation by others. 120VAC power
and proportional control signal are
provided from the DHP control panel,
interconnecting wiring is by others.
Three way mixing valves are globe
type with bronze seat, stainless steel
stem, and brass plug. Valves through
3" are threaded with bronze body,
valves larger than 3" are flanged with
iron body.
Pre/Post Heating
Pre & Post Steam Heating Control Valves:
Systems incorporating Steam Pre
and/or Post Heating Coils shall have 2
way, valves with proportional electric
actuators provided shipped loose for
installation by others. 120VAC power
and proportional control signal are
provided from the DHP control panel,
interconnecting wiring is by others.
Two way valves for steam to 35 psig
are globe type with bronze seat and
body, stainless steel stem, and brass
plug. Two way valves for steam over
35 psig to 100 psig are globe type
with bronze body, stainless steel
seat, plug, and stem.
Control Sensors
D-Stat II Control Sensor:
A duct or wall mount humidistat is
available as an option, for mounting by
the installing contractor. The snap
acting switch is actuated through a
long life, nylon ribbon sensing element. Humidistats have adjustable
setpoint (10-90%RH wall mount, 1595%RH duct mount) with a 5%RH
fixed differential.
H-Trac Control Sensor:
A duct or wall mount humidity transmitter is available as an option for
mounting by the installing contractor.
Humidity measurement is 0-95%RH
with accuracy up to +/- 2% RH
utilizing a capacitive thin film polymer
sensor. Transmitters are loop powered.
Dew-Trac & C-Trol II Control
Sensor:
A duct or wall mount humidity and
temperature transmitter is available
as an option, for installation by the
installing contractor. Humidity measurement is 0-95%RH with accuracy
up to +/- 2%RH utilizing a capacitive
thin film polymer sensor. Temperature
measurement is (-)4 to 176 oF. duct
mount, 23 to 131 oF. wall mount, with
accuracy to +/- 0.4 oF. Transmitters
are loop powered.
Controller
Remote Control Panel:
The DHP controller shall be interfaced
through a remote mounted display/
operator panel. (Optionally available
only with the D-Tech 20 controller.)
Building Management Systems:
Microprocessor inputs and outputs
shall be capable of being remotely
monitored and controlled via a Building Management System (BMS)/Local
Area Network (LAN) that can communicate via Modbus protocol. (Optionally available only with the D-Tech 20
controller.)
The unit microprocessor shall be
internally configured for Modbus
protocol and shall incorporate an
optional RS485 serial card for a field
wired connection to a remote system.
(Note: A list of the communication
addresses shall be available upon
request from your local SATS Sales
Representative.
Electrical
Interior Cabinet Lights:
Optional vapor resistant lights with
bump guards shall be installed in
each cabinet section. The interior
lights shall be equipped with an on/off
switch. A 15 Amp, 120 VAC GFCI
duplex electrical receptacle shall be
provided The lights and receptacle
shall be wired in liquid tight conduit to
a common point, 120VAC power
required by others
Fused Disconnect
The system shall be provided with a
fused main power electrical disconnect switch shipped loose for installation by others. The switch shall be
NEMA 3R rated for outdoor use and
shall be the lockable type.
Optional Features -
The DHP unit manufacturer shall
provide the services of a Factory
Technician or Factory Authorized
Representative to supervise start-up
and provide on site training of the
owner’s operating personnel or
representative.
Main Power Disconnect Switch:
Non-Fused Disconnect
non-fused main power electrical
disconnect switch shipped loose for
installation by others. The switch shall
be NEMA 3R rated for outdoor use
and shall be the lockable type.
Start-up
Rotary Disconnect
factory installed, main power rotary
electrical disconnect switch.
Circuit Breaker
factory installed, rotary, main power
electrical circuit breaker switch.
Dry Handler Plus
(Model DHP-4250-77-G Shown)
4-12
Performance Data - (“A” Cabinet 750 to 3,000 CFM AirFlow)
“DHP” MODEL
-750-55-( )
-1150-55-( )
-1500-55-( )
-1500-77-( )
-2250-77-( )
-3000-77-( )
System Nominal Performance Capacity Data - (System Contains Pre-Cool and Post Cool)
Performance Data -
Process Air Volume (SCFM)
750
750 to 3,000 CFM AirFlow
1,150
1,500
1,500
2,250
3,000
Entering Air Conditons Into DHP System
Drybulb / Wetbulb (DB/WB °F)
95.0/78.0
Dew Point Temperature (°F)
71.8
Moisture Content (Gpp)
117.5
95.0/78.0
71.8
117.5
95.0/78.0
71.8
117.5
95.0/78.0
71.8
117.5
95.0/78.0
71.8
117.5
95.0/78.0
71.8
117.5
Leaving Air Conditons Out Of DHP System
55.0/40.8
19.3
15.0
55.0/41.5
22.4
17.3
55.0/42.0
24.2
18.9
55.0/40.8
19.4
15.1
55.0/41.4
22.0
17.0
55.0/42.0
24.4
18.9
74.1
100.2
95.1
98.6
98.7
102.4
145.4
100.5
190.2
98.6
85.0/70.0
62.9
85.9
85.0/70.0
62.9
85.9
85.0/70.0
62.9
85.9
85.0/70.0
62.9
85.9
85.0/70.0
62.9
85.9
55.0/40.8
19.3
15.0
55.0/41.5
22.4
17.3
55.0/42.0
24.2
18.9
55.0/40.8
19.4
15.1
55.0/41.4
22.0
17.0
55.0/42.0
24.4
18.9
34.2
70.9
50.7
68.6
64.6
67.0
68.3
70.8
99.7
68.9
129.2
67.0
1.0
1.5
SWSI, FC
Direct
1.0
3
SWSI, FC
Direct
1.0
3
SWSI, BI
Belt
1.0
3
SWSI, BI
Belt
1.0
5
SWSI, BI
Belt
55.0/54.9
54.8
64.0
55.0/54.9
54.8
64.0
55.0/54.9
54.8
64.0
55.0/54.9
54.8
64.0
116.3/65.9
19.3
15.0
113.5/65.5
22.4
17.3
112.0/65.3
24.2
18.9
116.2/65.9
19.4
15.1
114.0/65.6
22.0
17.0
23.6
49.0
34.5
46.7
43.5
45.1
47.2
48.9
68.0
47.0
87.0
45.1
550
800
Silica Gel
770
400
Silica Gel
770
600
Silica Gel
770
800
Silica Gel
100% Outside Air Rating:
Moisture Removal Capacity
lb/hr
( Gpp)
49.4
102.5
Mixed Air Rating:
Entering Air Conditions Into DHP System
85.0/70.0
62.9
85.9
Leaving Air Conditons Out Of DHP System
lb/hr
( Gpp)
Process Blower/Motor Data
External Static Pressure
Horsepower
Blower Type
Drive Type
1.0
7.5
SWSI, BI
Belt
Desiccant Rotor Nominal Performance Data - (After Pre-Cooling)
Entering Air Temperature Into Desiccant Rotor
Dry Bulb / Wet Bulb (DB/WB °F)
55.0/54.9
54.8
64.0
55.0/54.9
54.8
64.0
Leaving Air Temperature Off Desiccant Rotor
111.9/65.3
24.4
18.9
lb/hr
( Gpp)
Desiccant Rotor Physical Data
Diameter (mm)Rotor Nominal Face Velocity (fpm)
Desiccant Media Type
5-1
550
400
Silica Gel
550
600
Silica Gel
“DHP” MODEL
-750-55-( )
-1150-55-( )
-1500-55-( )
-1500-77-( )
-2250-77-( )
-3000-77-( )
Desiccant Rotor Physical Data (Cont.)
Motor Horsepower
Drive Type
1/80
1/80
1/80
Synchronous Belt (ALL)
1/80
1/80
250
0.5
0.75
SWSI, FC
Direct
383
0.5
0.75
SWSI, FC
Direct
500
0.5
1.0
SWSI, FC
Direct
500
0.5
1.0
SWSI, FC
Direct
750
0.5
1.5
SWSI, FC
Direct
1,000
0.5
3
SWSI, FC
Direct
95
285
95
285
95
285
95
285
95
285
95
285
-750-55-E
-1150-55-E
-1500-55-E
-1500-77-E
-2250-77-E
-3000-77-E
15.0
22.5
45.0
60.0
Nichrome Wire
Nichrome Wire
Nichrome Wire
Nichrome Wire
Nichrome Wire
Nichrome Wire
“DHP” MODEL:
-750-55-S
-1150-55-S
-1500-55-S
-1500-77-S
-2250-77-S
Steam Coil Data:
Rows
Face Velocity, fpm
Coil Construction
2
150.0
2
229.8
Reactivation Blower / Motor Data
Air Flow Rate (CFM)
Horsepower
Blower Type
Drive Type
Reactivation Design Air Temperature Rise
Entering Air Temperature (°F DB Summer)
Leaving Air Temperature Off Heater
Electric Heat Reactivation Data
“DHP” MODEL:
kW Rating
Control Type
Heater Element Type
30.0
30.0
Proportional SCR (ALL)
Steam Heat Reactivation Data
2
2
300.0
300.0
Al2 Fin/Cu Tube (ALL)
-3000-77-S
2
450.0
2
600.0
50 psig Inlet Steam Rating: (Standard Option)
BTU/H Rating
51,410
Condensate (lb/hr)
60.2
Number of coils
2
81,260
94.5
3
104,310
120.8
3
104,310
120.8
3
157,880
182.9
4
206,390
226.6
4
100 psig Inlet Steam Rating: (Optional)
BTU/H Rating
61,400
Condensate (lb/hr)
75.6
Number of coils
2
90,430
110.4
2
114,070
138.7
2
114,070
138.7
2
159,530
192.7
2
228,850
279.7
3
-750-55-G
-1150-55-G
-1500-55-G
-1500-77-G
-2250-77-G
51,300
10 - 14
78,592
10 - 14
1/80
Performance Data -
Rotor Drive Motor Data:
Direct-Natural Gas Fired Heat Reactivation Data
“DHP” MODEL:
BTU/H Rating
Gas Inlet Pressure Range (inches w.c.)
Control Type
Electrical Data -
102,600
102,600
10 - 14
10 - 14
Proportional Valve (ALL)
153,900
10 - 14
-3000-77-G
205,200
10 - 14
(Represents single point power requirement for standard DryHandler Plus System with standard Process Blower Motor and
standard Pre-Cooling and Post-Cooling Modules.)
“DHP” MODEL w/Electric Reactivation: -750-55-E
@460-480V/3PH/60HZ- FLA/MCA/MFS
“DHP” MODEL w/Steam Reactivation:
“DHP” MODEL w/Gas Reactivation:
23.9/29.5/30
-1150-55-E
34.4/43/45
-1500-55-E
44.3/55.4/60
-1500-77-E
44.3/55.4/60
-2250-77-E
66/82.5/85
-3000-77-E
88.9/111.1/125
-750-55-S
4.8/6/10
-1150-55-S
6.1/7.6/15
-1500-55-S
6.6/8.3/15
-1500-77-S
6.6/8.3/15
-2250-77-S
9.5/11.9/20
-3000-77-S
13.5/16.9/2
-750-55-G
4.8/6/10
-1150-55-G
6.1/7.6/15
-1500-55-G
6.6/8.3/15
-1500-77-G
6.6/8.3/15
-2250-77-G
9.5/11.9/20
-3000-77-G
13.5/16.9/25
Note: Reactivation heaters may not operate at their maximum capacity under normal operating conditions. Please
contact the factory for actual heater power ratings or for gas therms or steam consumption specific to an application.
5-2
“DHP” MODEL
-750-55-( )
-1150-55-( )
-1500-55-( )
-1500-77-( )
-2250-77-( )
-3000-77-( )
95.0/78.0
95.0/78.0
95.0/78.0
95.0/78.0
95.0/78.0
95.0/78.0
65,230
34,260
101,270
52,990
127,440
67,180
127,440
67,180
191,160
100,760
267,960
267,960
53.2/53.1
19.3
53.0
52.9/52.7
22.4
52.5
54.0/53.9
24.2
53.8
54.0/53.9
19.4
53.8
54.0/53.9
22.0
53.8
52.3/52.2
24.4
52.1
27.8
57.6
43.3
58.6
53.8
55.8
53.8
55.8
80.7
55.8
114.9
59.6
45.0/55.4
19.4
6.5
45.0/55.1
25.3
10.4
45.0/55.1
25.3
10.4
45.0/55.1
37.9
12.0
45.0/55.6
50.6
6.0
Chilled Water Pre-Cooling Coil Data
Performance Data -
Entering Air Conditions
Entering Air Temperature (DB/ WB °F)
Net Cooling Capacity
Total Cooling Capacity (BTU/H)
Sensible Cooling Capacity (BTU/H)
Leaving Air Conditions
Leaving Air Temperature (DB/WB °F)
Leaving Air Dew Point Temperature (°F)
lb/hr
( Gpp)
Chilled Water Conditions
Entering/Leaving Water Temperature (°F) 45.0/55.3
Chilled Water Flow Rate (GPM)
12.6
Chilled Water Coil Pressure Drop (Ft.w.g.)
5.6
Chilled Water Coil Data
Rows
Face Velocity, fpm
Coil Construction
6
321.4
6
306.7
6
6
400.0
400.0
6
400.0
8
436.4
3-way
4.4
3-way
7.5
3-way
3-way
14.0
14.0
3-way
14.0
3-way
20.0
85.0/70.0
85.0/70.0
85.0/70.0
85.0/70.0
85.0/70.0
85.0/70.0
40,840
26,100
63,500
40,240
79,560
51,660
79,560
51,660
118,300
76,470
157,240
102,410
53.2/52.7
52.3
58.3
52.9/52.4
52.0
57.6
53.5/53.2
53.0
59.7
53.5/53.2
53.0
59.7
53.9/53.4
53.0
59.9
53.8/53.5
53.3
60.4
13.3
27.6
20.9
28.3
25.3
26.2
25.3
26.2
37.6
26.0
49.2
25.5
45.0/55.8
11.7
13.9
45.0/55.4
15.3
4.3
45.0/55.4
15.3
4.3
45.0/55.3
22.9
19.0
45.0/55.3
30.5
6.2
Control Valve Data
Valve Type
Size (Cv)
Control Type
Mixed Entering Air Rating:
lb/hr
( Gpp)
7.6
12.6
Rows
Face Velocity, fpm
Coil Construction
5
321.4
5
306.7
6
6
400.0
400.0
5
400.0
6
436.4
3-way
4.4
3-way
4.4
3-way
3-way
7.5
7.5
3-way
7.5
3-way
14
Control Valve Data
Valve Type
Size (Cv)
Control Type
5-3
“DHP” MODEL
-750-55-( )
-1150-55-( )
-1500-55-( )
-1500-77-( )
-2250-77-( )
-3000-77-( )
Chilled Water Post Cooling Coil Nominal Data - (Based on System With Pre-Cooling)
55,460
113.5
112.0
116.2
114.0
111.9
81,750
103,060
109,840
156,210
202,000
48.7
48.7
50.0
49.8
45.0/55.1
20.4
15.8
45.0/54.8
22.3
18.5
45.0/55.0
31.1
8.4
45.0/55.0
40.1
5.8
6
400
8
533
3-way
14.0
3-way
20.0
Leaving Air Conditions- (Compensated for Blower Heat Gain)
Leaving Air Temperature (DB °F)
48.1
48.0
11.5
10.7
Rows
Face Velocity, fpm
Coil Construction
6
321
45.0/54.9
16.5
10.8
6
307
6
6
400
400
Control Valve Data, Optional (Field Installed)
Valve Type
Size (Cv)
Control Type
3-way
4.4
3-way
7.5
3-way
3-way
7.5
7.5
Pre-Cooling Section Filtration
Nominal Size (Qty.)
12”x24”x2” (1)
Efficiency Rating (per ASHRAE 52/76)
30%
Filter Type
Pleated
12”x24”x2” (1)
30%
Pleated
12”x24”x2” (1)
30%
Pleated
12”x24”x2” (1)
30%
Pleated
12”x24”x2” (1)
30%
Pleated
12”x24”x2” (1)
30%
Pleated
95.0/78.0
95.0/78.0
95.0/78.0
95.0/78.0
95.0/78.0
95.0/78.0
71,300
36,420
98,240
51,250
133,600
69,170
133,600
69,170
200,400
103,760
260,240
135,340
50.0/50.0
50.0
53.4
53.7/53.7
53.7
61.3
52.3/52.3
52.3
58.2
52.3/52.3
52.3
58.2
52.3/52.3
52.3
58.2
53.2/53.2
53.2
60.2
30.9
64.0
41.5
56.1
57.1
59.2
57.1
59.2
85.6
59.2
10.3
57.2
6
309
40
6
493
40
6
6
429
429
40
40
6
429
40
6
468
40
DX Pre-Cooling Coil Nominal Data
lb/hr
( Gpp)
DX Coil Data
Rows
Face Velocity, fpm
Saturated Suction Temperature (DB °F )
Coil Construction
Air Filtration
Performance Data -
Entering Air Conditions From Desiccant Cassette
Entering Air Temperature (DB °F)
116.3
5-4
“DHP” MODEL
-750-55-( )
-1150-55-( )
-1500-55-( )
-1500-77-( )
-2250-77-( )
-3000-77-( )
85.0/70.0
85.0/70.0
85.0/70.0
85.0/70.0
85.0/70.0
85.0/70.0
43,810
27,080
68,320
42,090
78,780
50,110
78,780
50,110
136,200
84,160
177,360
110,290
51.6/51.3
51.0
55.6
51.1/50.9
50.8
55.1
54.1/53.6
53.2
60.3
54.1/53.6
53.2
60.3
50.4/50.4
50.4
54.2
51.0/51.0
51.0
55.4
29.8
61.8
46.1
62.3
55.1
57.1
55.1
57.1
91.4
63.2
119.6
62.0
4
321
40
6
473
40
4
4
429
429
40
40
6
429
40
6
468
40
DX Pre-Cooling Coil Nominal Data (Cont.)
Performance Data -
lb/hr
( Gpp)
DX Coil Data
Rows
Face Velocity, fpm
Coil Construction
DX Post-Cooling Coil Nominal Data - (Based on System With Pre-Cooling)
116.3
54,660
113.5
112.0
116.2
114.0
111.9
81,940
102,260
109,350
159,960
201,980
48.9
48.7
48.2
49.6
6
6
514
429
40
40
6
429
40
6
571
40
48.8
47.5
DX Coil Data
Rows
Face Velocity, fpm
Coil Construction
6
309
40
6
394
40
Electric Pre-Heating Coil Data- (Provided Specific to the Application- Contact SATS)
Direct Natural Gas Pre-Heating Data- (Provided Specific to the Application- Contact SATS)
Electric Post-Heating Coil Data- (Provided Specific to the Application- Contact SATS)
Direct Natural Gas Post Heating Data- (Provided Specific to the Application- Contact SATS)
5-5
Performance Data - (“B” Cabinet 2,750 to 7,250 CFM AirFlow)
“DHP” MODEL
-2750-107-( )
-4250-107-( )
-5500-107-( )
-3750-122-( )
-5500-122-( )
-7250-122-( )
System Nominal Performance Capacity Data - (System Contains Pre-Cool and Post Cool)
2,750
4,250
5,500
3,750
5,500
7,250
95.0/78.0
71.8
117.5
95.0/78.0
71.8
117.5
95.0/78.0
71.8
117.5
95.0/78.0
71.8
117.5
95.0/78.0
71.8
117.5
95.0/78.0
71.8
117.5
Leaving Air Conditions Out Of DHP System
55.0/40.5
18.1
14.2
55.0/41.3
21.6
16.7
55.0/41.9
23.8
184
55.0/40.8
19.3
15.0
55.0/41.3
21.6
16.7
55.0/41.9
24.1
18.6
275.4
100.8
350.4
99.1
247.1
102.5
356.4
100.8
460.9
98.6
85.0/70.0
62.9
85.9
85.0/70.0
62.9
85.9
85.0/70.0
62.9
85.9
85.0/70.0
62.9
85.9
85.0/70.0
62.9
85.9
55.0/40.5
18.1
14.2
55.0/41.3
21.6
16.7
55.0/41.9
23.8
18.4
55.0/40.8
19.3
15.0
55.0/41.3
21.6
16.7
55.0/41.9
24.1
16.6
126.8
71.7
189.1
69.2
238.7
67.5
170.9
70.9
244.7
69.2
313.7
67.3
1.0
5.0
SWSI, BI
Belt
1.0
7.5
SWSI, BI
Belt
1.0
10.0
SWSI, BI
Belt
1.0
5.0
SWSI, BI
Belt
1.0
10.0
SWSI, BI
Belt
1.0
15.0
SWSI, BI
Belt
55.0/54.9
54.8
64.0
55.0/54.9
54.8
64.0
55.0/54.9
54.8
64.0
55.0/54.9
54.8
64.0
55.0/54.9
54.8
64.0
117.7/66.2
18.1
14.2
114.6/65.7
21.6
16.7
113.2/65.6
23.8
18.4
116.3/65.9
19.3
15.0
114.6/65.7
21.6
16.7
112.8/65.5
24.1
18.6
88.0
49.8
129.2
47.3
161.2
45.6
118.1
49.0
167.2
47.3
211.6
45.4
1,070
400
Silica Gel
1,070
600
Silica Gel
1,070
800
Silica Gel
1,220
400
Silica Gel
1,220
600
Silica Gel
1,220
800
Silica Gel
lb/hr
( Gpp)
182.6
103.3
Mixed Air Rating:
85.0/70.0
62.9
85.9
Performance Data -
Process Air Volume (SCFM)
Leaving Air Conditions Out Of DHP System
lb/hr
( Gpp)
Process Blower/Motor Data
Horsepower
Blower Type
Drive Type
Desiccant Rotor Nominal Performance Data - (After Pre-Cooling)
2,750 to 7,250 CFM AirFlow
Entering Air Temperature Into Desiccant Rotor
55.0/54.9
54.8
64.0
Leaving Air Temperature Off Desiccant Rotor
lb/hr
( Gpp)
Desiccant Rotor Physical Data
Diameter (mm)Rotor Nominal Face Velocity (fpm)
Desiccant Media Type
5-6
“DHP” MODEL
-2750-107-( )
-4250-107-( )
-5500-107-( )
-3750-122-( )
-5500-122-( )
-7250-122-( )
1/12
1/12
Desiccant Rotor Physical Data (Cont.)
Performance Data -
Rotor Drive Motor Data:
Motor Horsepower
Drive Type
1/12
1/12
1/12
1/12
Synchronous Belt (ALL)
917
0.5
2.0
SWSI, FC
Direct
1,417
0.5
3.0
SWSI, FC
Direct
1,833
0.5
3.0
SWSI, BAF
Direct
1,250
0.5
3.0
SWSI, FC
Direct
1,833
0.5
3.0
SWSI, BAF
Direct
2,417
0.5
5.0
SWSI, BAF
Direct
95
285
95
285
95
285
95
285
95
285
95
285
-2750-107-E
-4250-107-E
-5500-107-E
-3750-122-E
-5500-122-E
-7250-122-E
60.0
90.0
112.5
150.0
Nichrome Wire
Nichrome Wire
Nichrome Wire
Nichrome Wire
Nichrome Wire
Nichrome Wire
“DHP” MODEL:
-2750-107-S
-4250-107-S
-5500-107-S
-3750-122-S
-5500-122-S
-7250-122-S
Steam Coil Data:
Rows
Face Velocity, fpm
Coil Construction
2
222.0
2
343.0
2
444.0
2
547.0
Reactivation Blower / Motor Data
Air Flow Rate (CFM)
Horsepower
Blower Type
Drive Type
Reactivation Design Air Temperature Rise
Entering Air Temperature (°F DB Summer)
Leaving Air Temperature Off Heater
Electric Heat Reactivation Data
“DHP” MODEL:
kW Rating
Control Type
Heater Element Type
112.5
75.0
Proportional SCR (ALL)
Steam Heat Reactivation Data
2
2
444.0
303.0
50 psig Inlet Steam Rating: (Standard Option)
BTU/H Rating
195,000
Condensate (lb/hr)
214.0
Number of coils
3
293.000
321.0
3
368,000
404.0
3
261,000
303.0
3
368,000
404.0
3
498,000
547.1
4
100 psig Inlet Steam Rating: (Optional)
BTU/H Rating
218,000
Condensate (lb/hr)
248.0
Number of coils
2
316,000
361.0
2
390,000
428.0
2
284,000
324.0
2
390,000
428.0
2
555,000
623.0
3
-2750-107-G
-4250-107-G
-5500-107-G
-3750-122-G
-5500-122-G
-7250-122-G
188,168
10 - 14
290,768
10 - 14
376,132
10 - 14
495,968
10 - 14
Direct-Natural Gas Fired Heat Reactivation Data
“DHP” MODEL:
BTU/H Rating
Gas Inlet Pressure Range (inches w.c.)
Control Type
Electrical Data-
376,132
256,500
10 - 14
10 - 14
(Proportional Valve- ALL)
(Represents single point power requirement for standard DryHandler Plus System with standard Process Blower Motor and
standard Pre-Cooling and Post-Cooling Modules.)
“DHP” MODEL w/Electric Reactivation: -2750-107-E
“DHP” MODEL w/Steam Reactivation:
“DHP” MODEL w/Gas Reactivation:
-4250-107-E
-5500-107-E
-3750-122-E
-5500-122-E
-7250-122-E
85.5/106.9/110 128.4/160.5/175 160.7/200.9/225 106.0/132.5/150 160.7/200.9/225 215.2/269.0/300
-2750-107-S
10.1/12.6/20
-4250-107-S
15.3/19.1/30
-5500-107-S
19.3/24.1/40
-3750-122-S
11.8/14.7/25
-5500-122-S
19.3/24.1/40
-7250-122-S
26.7/33.4/60
-2750-107-G
10.1/12.6/20
-4250-107-G
15.3/19.1/30
-5500-107-G
19.3/24.1/40
-3750-122-G
11.8/14.7/25
-5500-122-G
19.3/24.1/40
-7250-122-G
26.7/33.4/60
Note: Reactivation heaters may not operate at their maximum capacity under normal operating conditions. Please
contact the factory for actual heater power ratings or for gas therms or steam consumption specific to an application.
5-7
“DHP” MODEL
-2750-107-( )
-4250-107-( )
-5500-107-( )
-3750-122-( )
-5500-122-( )
-7250-122-( )
Chilled Water Pre-Cooling Coil Data
95.0/78.0
95.0/78.0
95.0/78.0
95.0/78.0
95.0/78.0
95.0/78.0
236,680
124,350
390,150
203,110
520,000
269,000
349,000
181,000
520,000
269,000
655,000
346,000
53.7/53.4
53.2
60.3
51.3/51.3
51.1
55.7
50.2/50.1
50.0
53.5
50.8/50.8
50.8
55.0
50.2/50.1
50.1
53.5
51.3/51.2
51.1
55.7
100.9
57.1
168.6
61.7
225.9
63.9
150.4
62.4
225.9
63.9
287.6
61.7
45.0/55.9
71.7
15.8
45.0/56.2
92.7
11.6
45.0/56.0
63.2
12.7
45.0/56.2
92.7
11.6
45.0/55.9
122.0
18.7
lb/hr
( Gpp)
46.4
8.0
6
366.0
8
453.0
8
8
345.0
453.0
8
345.0
8
454.0
Control Valve Data
Valve Type
Size (Cv)
Control Type
3-way
20
3-way
28
3-way
3-way
41
28
3-way
41
3-way
41
85.0/70.0
85.0/70.0
85.0/70.0
85.0/70.0
85.0/70.0
85.0/70.0
147,570
95,550
247,580
158,250
330,000
206,200
221,000
139,000
330,000
206,000
422,000
267,000
Leaving Air Conditons
53.2/53.0
52.8
59.4
51.4/51.3
51.1
55.7
50.2/50.1
50.0
53.5
51.3/51.2
51.1
55.7
50.2/50.1
50.0
53.5
51.3/51.2
51.1
55.7
102.5
58.0
168.6
61.7
225.9
63.9
148.7
61.7
225.9
63.9
287.6
61.7
45.0/56.4
43.2
6.5
45.0/56.8
55.9
4.6
45.0/56.6
38.1
5.2
45.0/56.8
55.9
4.6
45.0/56.4
73.7
7.4
lb/hr
( Gpp)
Rows
Face Velocity, fpm
Coil Construction
Performance Data -
28.0
3.3
Rows
Face Velocity, fpm
Coil Construction
6
366.0
8
453.0
8
8
345.0
400.0
8
345.0
8
454.0
3-way
14
3-way
28
3-way
3-way
28
20
3-way
28
3-way
41
Control Valve Data
Valve Type
Size (Cv)
Control Type
5-8
“DHP” MODEL
-2750-107-( )
-4250-107-( )
-5500-107-( )
-3750-122-( )
-5500-122-( )
-7250-122-( )
Chilled Water Post Cooling Coil Nominal Data - (Based on System With Pre-Cooling)
Performance Data -
117.7
113.2
116.3
114.6
112.8
295,480
379,830
269,340
388,100
490,470
49.5
50.1
49.5
50.4
45.0/55.2
74.2
6.3
45.0/55.1
53.1
7.4
45.0/55.2
75.9
6.5
45.0/55.1
97.2
10.2
6
345
6
455
3-way
41
3-way
41
49.8
50.5
40.3
6.2
Rows
Face Velocity, fpm
Coil Construction
6
366
45.0/55.1
58.5
8.8
6
453
6
6
345
400
Control Valve Data, Optional (Field Installed)
Valve Type
Size (Cv)
Control Type
3-way
20
3-way
28
3-way
3-way
41
28
24”x24”x2” (4)
30%
Pleated
24”x24”x2” (4)
30%
Pleated
24”x24”x2” (4)
30%
Pleated
24”x24”x2” (4)
30%
Pleated
24”x24”x2” (4)
30%
Pleated
24”x24”x2” (4)
30%
Pleated
95.0/78.0
95.0/78.0
95.0/78.0
95.0/78.0
95.0/78.0
95.0/78.0
241,180
124,540
366,480
189,660
475,540
245,990
311,660
162,240
475,540
245,990
692,860
355,500
53.1/53.0
52.9
59.6
53.7/53.6
53.5
61.0
53.6/53.5
53.4
60.7
55.0/54.7
54.5
63.2
53.6/53.5
53.4
60.7
49.6/49.6
49.6
52.6
102.2
57.8
154.1
56.4
200.5
56.7
130.7
54.2
200.5
56.7
302.0
64.8
6
409
40
6
437
40
6
433
40
8
476
40
Air Filtration
Pre-Cooling Section Filtration
Nominal Size (Qty.)
Efficiency Rating (per ASHRAE 52/76)
Filter Type
DX Pre-Cooling Coil Nominal Data
lb/hr
( Gpp)
DX Coil Data
Rows
Face Velocity, fpm
Coil Construction
5-9
202,620
114.6
6
6
433
502
40
40
“DHP” MODEL
-2750-107-( )
-4250-107-( )
-5500-107-( )
-3750-122-( )
-5500-122-( )
-7250-122-( )
Entering Air Conditons
85.0/70.0
85.0/70.0
85.0/70.0
85.0/70.0
85.0/70.
85.0/70.0
148,440
92,230
221,240
138,890
286,320
179,410
193,660
121,630
286,320
179,410
431,110
265,360
Leaving Air Conditons
54.0/53.1
52.4
59.7
54.7/53.8
53.1
61.3
54.8/53.8
53.1
61.2
55.0/53.9
53.1
61.3
54.8/53.8
53.1
61.2
51.1/50.9
50.7
56.0
102.0
57.7
153.3
56.1
198.7
56.2
135.2
56.1
198.7
56.2
286.2
61.4
4
368
40
4
392
40
4
409
40
6
485
40
lb/hr
( Gpp)
DX Coil Data
Rows
Face Velocity, fpm
Coil Construction
4
4
409
418
40
40
117.7
200,190
114.6
113.2
116.3
114.6
112.8
301,660
381,200
268,200
387,140
500,810
49.0
50.1
49.4
48.8
6
6
512
523
40
40
6
512
40
6
506
40
50.3
48.9
DX Coil Data
Rows
Face Velocity, fpm
Coil Construction
6
512
40
6
474
40
DX Post-Cooling Coil Nominal Data - (Based on System With Pre-Cooling)
Performance Data -
DX Pre-Cooling Coil Nominal Data (Cont.)
Electric Pre-Heating Coil Data- (Provided Specific to the Application- Contact SATS)
Direct Natural Gas Pre-Heating Data- (Provided Specific to the Application- Contact SATS)
Electric Post-Heating Coil Data- (Provided Specific to the Application- Contact SATS)
Direct Natural Gas Post Heating Data- (Provided Specific to the Application- Contact SATS)
5-10
Performance Curves - 400 FPM Rotor Face Velocity
Performance curves are provided for reference only. Data is based on reactivation entering air conditions at
95 oF/130 GPP. Please contact SATS for precise performance modeling specific to your application.
Performance Curves -
400 FPM Process Air Velocity
Grains Per Pound
(GPP)
Process Leaving Air Moisture: GPP
1. Find the correct “Process Entering
Moisture” (humidity) value in grains
per pound (GPP) on the x-axis of the
Moisture Removal Capacity graph.
2. Move vertically in a straight line to
intersect the curve closest to the
entering air temperature. Interpolate
as required.
400 FPM Face Velocity
3. Move horizontally to the left and
intersect the scale marked “Process
Leaving Air Moisture”. The value at
this point represents the moisture/
humidity leaving the dehumidifier in
grains per pound.
Process Entering Moisture: GPP
Process Leaving Air Temperature
Process Leaving
Temperature
Degrees Fahrenheit
(°F)
Process Leaving Air Temp: °F
1. Find the correct process “Process
Entering Moisture” (humidity) value in
grains per pound (GPP) on the x-axis
of the Process Leaving Air Temperature graph.
entering air temperature.
Leaving Air Temp.” The value at this
point represents the air temperature
leaving the dehumidifier in °F.
Note:
Process leaving air temperatures as shown are at maximum values at standard full rated heater output. The actual leaving air
temperature will be lower whenever the heater output is below full rated output. The condition will occur during heater modulation cycles due to partial loading of the dehumidifier.
5-11
Grains Per Pound
(GPP)
as required.
Process Leaving
Temperature
Degrees Fahrenheit
(°F)
grains per pound.
Note:
5-12
Grains Per Pound
(GPP)
as required.
grains per pound.
Process Leaving
Temperature
Degrees Fahrenheit
(°F)
Note:
5-13
Notes
NOTES
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5-14
Dimensional Data -
(“A” Cabinet 750 to 3,000 CFM AirFlow)
TYPICAL CONFIGURATION - Standard Left Hand Orientation
Dimensional Data -
USER INTERFACE BOX
46.00
DISCONNECT
SWITCH
(OPTIONAL)
DIFFERENTIAL PRESSURE
GAUGE BOX
33.50
REACTIVATION HEATER BOX
REACTIVATION FILTER BOX
REACTIVATION HOOD
(OPTIONAL)
SKID
VATION AIR INLET
ELE
PROCESS INLET
HOOD
(OPTIONAL)
LOCKING HANDLES
DESICCANT DRIVE
VIEWING WINDOW
33.34
TYPICAL CONFIGURATION SHOWING MODULE SPLITS
MODULE
PROCESS BLOWER
MODULE
POST FILTER MODULE
POST COOL MODULE
DRYHANDLER MODULE
PRE-COOL MODULE
PRE FILTER MODULE
6-1
Dimensional Data -
(“A” Cabinet 750 to 3,000 CFM AirFlow)
NOTE: LOCATION OF ELECTRICAL CONTROLS MAY VARY
DEPENDING ON OPTIONS SELECTED
DISCONNECT
SWITCH
(OPTIONAL)
WEATHER HOOD
USER INTERFACE BOX
P
AIR OUT
DOOR
FILTER
AREA
51.00
ACCESS
DOOR
ACCESS
DOOR
DOOR
44.31
OCESS
R IN
A
C
B
D
E
F
238.00
FRONT
MODULE SECTION REF. LTR.
DIMENSION
A
56.0"
POST FILTER
B
24.0"
POST COOL
C
36.0"
DRY HANDLER
D
62.0"
PRE-COOL
E
36.0"
PRE-FILTER
F
24.0"
15.93
K
19.87
J
L
H
84.50
28.00
PROCESS BLOWER
Dimensional Data -
R HOOD
N
59.57
28.00
G
15.50
4X 1.50
30.00
4X 1.50
8.00
8.00
30.00
RIGHT SIDE
LEFT SIDE
DHP MODEL
DIM G
DIM H
DIM J
DIM K
DIM L
750-55-( )-LS/SD
30.88"
7.50"
2.25"
2.00"
1.50"
1150/1500-77-( )-LS/SD
30.88"
8.00"
3.69"
2.00"
1.50"
1500/2250-77-( )-LS/SD
30.88"
8.00"
3.69"
2.00"
1.50"
3000-77-( )-LS/SD
30.88"
8.75"
4.25"
2.00"
1.50"
6-2
Dimensional Data -
(“B” Cabinet 2,750 to 7,250 CFM AirFlow)
TYPICAL CONFIGURATION - Standard Left Hand Orientation
Dimensional Data -
61.00
REACTIVATION HEATER BOX
DISCONNECT SERVICE SWITCH
(OPT
41.00
USER INTERFACE
PRESSURE GAUGE BOX
REACTIVATION FILTER BOX
REACTIVATION HOOD
(OPTIONAL)
REACTIVATION AIR INLET
SKID
PROCESS INLET
HOOD
(OPTIONAL)
E
LOCKING HANDLES
DESICCANT DRIVE
VIEWING WINDOW
47.00
TYPICAL CONFIGURATION SHOWING MODULE SPLITS
ULE
PROCESS BLOWER
MODULE
POST FILTER MODULE
POST COOL MODULE
DRYHANDLER MODULE
PRE-COOL MODULE
PRE FILTER MODULE
6-3
Dimensional Data -
(“B” Cabinet 2,750 to 7,250 CFM AirFlow)
WEATHER HOOD
w/ SCREEN (OPTIONAL)
DISCONNECT SWITCH
(OPTIONAL)
USER INTERFACE BOX
TION
WEATHER HOOD
w/ SCREEN (OPTIONAL)
ACCESS
69.00
PROCESS
AIR IN
A
B
C
D
E
53.98
F
254.00
FRONT
MODULE SECTION REF. LTR.
DIMENSION
PROCESS BLOWER
A
72.0"
POST FILTER
B
24.0"
POST COOL
C
36.0"
DRY HANDLER
D
62.0"
PRE-COOL
E
36.0"
PRE-FILTER
F
24.0"
26.85
31.31
K
19.87
J
Dimensional Data -
NOTE: LOCATION OF ELECTRICAL CONTROLS MAY VARY
DEPENDING ON OPTIONS SELECTED
L
H
110.00
30.00
30.00
24.75
23.50
81.32
G
4X 1.50
48.00
6.50
48.00
6.50
LEFT SIDE
4X 1.50
RIGHT SIDE
DHP MODEL
DIM G
DIM H
DIM J
DIM K
DIM L
2750/4250-107-( )-LS/SD
49.25"
8.00"
5.31"
2.00"
1.50"
3750-122-( )-LS/SD
49.25"
8.00"
5.31"
2.00"
1.50"
5500-107-( )-LS/SD
54.88"
11.80"
10.69"
2.19"
1.13"
5500/7250-122-( )-LS/SD
54.88"
11.80"
10.69"
2.19"
1.13"
6-4