McQuay Type K Catalog 1302

Transcription

McQuay® Type K Catalog 1302
Incremental™ Room Conditioner with R-410A Refrigerant
LISTED
®
Engineered for flexibility and performance™
Table of Contents
Agency Approval..................................................................... 2
Typical Wiring Diagrams................................................... 17-25
Nomenclature.......................................................................... 3
Standard Features................................................................... 4
Design Features................................................................... 6-9
Performance Data................................................................... 9
Cooling Capacities at Nonstandard Conditions.................. 9-10
Heating Capacities at Nonstandard Conditions......................11
Dimensional Data (Sizes 007- 019)....................................... 12
Units with Electric Heat (Sizes 007-012)........................ 12
Units with Hydronic Heat (Sizes 007-012)..................... 13
Short Control Box........................................................... 13
Long Control Box........................................................... 13
Suggested Piping Arrangements........................................... 14
Units with Electric Heat (Size 019)........................................ 15
Units with Hydronic Heat (Size 019)...................................... 15
Wall Box and Room Cabinet Dimensions.............................. 16
Outdoor Louver Dimensions.................................................. 16
Standard Chassis w/Elect Heat & MCO Controls
(Sizes 007–012)..............................................................17
Standard Chassis w/Elect Heat & MCO Controls
(Size 019)........................................................................18
Standard Chassis w/Hot Water Heat & MCO Controls
(Sizes 007–012)..............................................................19
Standard Chassis w/Hot Water Heat & MCO Controls
(Size 019)........................................................................20
Standard Chassis w/Steam Heat & MCO Controls
(Sizes 007–012)..............................................................21
Standard Chassis w/ Steam Heat & MCO Controls
(Size 019)........................................................................22
Standard Chassis w/ Electric Heat & 24V Wall Stat
(Sizes 007–012)..............................................................23
Standard Chassis w/Elect Heat & 24V Wall Stat
(Sizes 007–012)..............................................................24
Standard Chassis w/Steam Heat & 24V Wall Stat
(Sizes 007–012)............................................................. 25
Remote Mounted Thermostats (Sizes 007-012).................... 26
Energy Saving Options.......................................................... 27
Guest Room Control (GRC)........................................... 27
Night Setback Control (NSB)......................................... 29
Outdoor Air Dampers..................................................... 27
Engineering Guide Specifications.................................... 28-29
Agency Approval
McQuay® Type K™ Incremental™ Packaged Terminal Room
Conditioners are tested and rated in accordance with
Air Conditioning and Refrigeration Institute (ARI) Standards
310 and 380. McQuay Type K Incremental Packaged Terminal
LISTED
Room Conditioners are listed by Underwriters Laboratories Inc.
and the Canadian Standards Association as complying with
nationally recognized safety standards for packaged terminal
air conditioners and heat pumps.
®
“Type K” is a registered trademark of McQuay International.
© 2010 McQuay International. All rights reserved throughout the world.
The information contained herein supersedes and replaces previous information published by McQuay
International and/or its predecessor companies. Illustrations cover the general appearance of McQuay
products at the time of publication. McQuay International also reserves the right to make changes in design
specifications, construction and materials at any time and without notice.
Catalog 1302 / Page of 32
Heavy Duty Construction for Durability and Quiet
Operation
Exceptional Quality in Design and
Construction
Today, McQuay Type K Incremental Room Conditioners continue
to set the industry standard for quality. Heavy duty construction, premium engineering, carefully selected components and
the highest manufacturing standards assure a quality product.
McQuay quality offers you a durable yet aesthetic unit that will
provide years of quiet trouble-free performance. For exceptional
quality in design and construction, turn to McQuay Type K Incremental Room Conditioners.
McQuay® International has been building quality products for
the air conditioning market since 1921. McQuay Type K Incremental™ Room Conditioners were first introduced in 1958 under
the Remington brand name. The Incremental system was the
first through-the-wall, self-contained heating and air conditioning system. It is designed to provide on-demand, zoned comfort control for multi-roomed buildings such as hotels, motels,
hospitals, nursing homes, apartments, dormitories and offices.
Model Nomenclature
P KES 2 007 C
Z
41
Z
12 AR
14 A
I
C 1
Model
Product Category
P = PTAC
Product Style
1= 1st Style Change
Product Identifier
KES = Type K, Cool Chassis Only
KEI = Type K Cool Chassis Only, IAQ
KEC = Type K Cool Chassis Only,
Corrosion Protection
KHS = Type K Heat Section Only
SKU
A = Stock
B = Standard Delivery
C = Extended Lead time
Design Series
1 = A design
2 = B design
Nominal Capacity - Btuh
007 = 7000
009 = 9000
012 = 12000
019 = 19000
Voltage
A = 115-60-1
C = 208-60-1
G = 230-60-1
J = 277/265-60-1
S = 208-115-60-1
R = 265-115-60-1
Coil Options
Z = None
Heating Options
35 = 2.5 kW nominal
41 = 3.5 kW nominal
44 = 4.0 kW nominal
48 = 5.0 kW nominal
50 = 7.7 kW nominal
62 = Hydronic - Normally Open Valve (Hot Water)
63 = Hydronic - Normally Closed Valve (Steam)
Color
I = Antique Ivory
Power Connection
A = Junction Box
Return Air/Outdoor Air
14 = Bottom
Discharge
AR = Flat Top
Controls
12 = Unit Mounted Manual Changeover (MCO)
24 = Unit Mounted Manual Changeover
w/Night Setback (NSB)
27 = 24V Wall T'stat w/Guest Room Control (GRC) & Night Setback (NSB)
32 = 24V Wall T'stat w/Night Setback(NSB)
Hand Orientation
A = Same Hand Left
B = Same Hand Right
N = LH Supply / RH Return
P = RH Supply / LH Return
Z = Not Applicable
NOTE: Availability of voltages, heating options, and controls may vary amongst unit sizes. Consult your McQuay representative.
Built With Quality And Long lasting Standard Features
The McQuay® Type K™ Room Air Conditioner is one of
the oldest Incremental™packaged terminal designs in the industry. These units have been in production since 1958 and
many of the original units are still in operation today. McQuay
International has a policy of continuous product research and
improvement. This new vintage of Type K units combines the
latest available technology with the long-standing quality features
that has made the Type K unit famous.
Heating Section
Option for electric resistance or
hydronic (steam or hot water) heat.
Centrifugal Fans
Quieter and able to overcome more
external static pressure than propeller fans. Allows more flexible options
for architectural louvers or special
condenser air treatments
Wall Sleeve
Heavy-gauge steel with powder paint
coating provides maximum scratch and
dent resistance. Minimizes vibration for
quieter operation
Outdoor Louver
Heavy-duty, architectural extruded aluminum to resist weathering
Heavy-duty Grille
Four-way adjustment allows air to be
directed where it is needed.
Motorized Outside Air Damper
Opens when unit is operating to bring
in outside air for improved indoor air
quality (IAQ). Closes when unit is idle to
prevent drafts.
Room Cabinet
Heavy-gauge steel with powder paint
coating provides maximum scratch
and dent resistance and minimizes
vibration for quieter operation
Adjustable Kickplate
Adjusts up or down to accommodate
new floor coverings
Easy-to-read Control Overlay
Made of tough polycarbonate material with color impregnated function
indicators that won't scratch, peel or
fade. Easy to read with color coding
and raised lettering for the visually
impaired.
Electro-mechanical Controls
Reliable and easy to operate. Easy
to read with color coding and raised
lettering for the visually impaired.
Design Features
Chassis
High Efficiency Condensing Section
The concept of individualized room conditioning began many
years ago with the Type K conditioner. Over the years this design
has become the benchmark for quality and reliability. Continual
research and product improvement has allowed McQuay to remain the leader in the sectionalized unit market. Recent design
changes have further enhanced the efficiency and durability of the
Type K chassis. Many important features have been developed.
Those features relevant to this design change are listed below.
The outdoor condenser section uses a reliable PSC motor
to drive an efficient centrifugal fan. Besides being quiet, the
centrifugal fan is used to dispose of unwanted condensate
generated during the cooling cycle. Condensate draining from
the evaporator coil is atomized and entrained by the condenser
blower airstream, re-evaporated on the hot condenser coil where
it escapes to the outside as vapor. No slinger rings are used and
the condensate never comes in contact with the outdoor blower
wheel(s). Re-evaporation also lowers condenser temperature
and pressure to increase overall cooling efficiency.
Figure 3. Chassis
Figure 5. Condensate Disposal
Outside Air Damper Control
Compressor
The power plant for the Type K is a high efficiency rotary compressor. It has a proven track record of efficiency and reliability
to insure low cost, and continuous service for many years. In
addition to its high efficiency, this compressor is protected against
thermal overload and is precision balanced for quiet operation.
Figure 4. Compressor
A motorized outside air damper is standard on all Type K
equipment. A toggle switch is located on the cooling chassis to
provide control of the damper. The damper can be set to either
of two positions: automatic or closed. In the automatic position,
the damper will open whenever the indoor fan is energized,
except during night setback when it remains closed. In the
closed position, the damper will remain closed at all times. The
toggle switch is concealed behind the front panel to prevent
unauthorized tampering.
Controls
The brains to operate the Type K unit are in the control box.
The control box is a separate component that is shipped
with the heat section. A plug-in harness is provided for
quick connection to the cooling chassis and a receptacle for
connection to the heat section.
The control box is factory overlaid with a tough, polycarbonate membrane to preserve its appearance for many
years. See Figures 6 and 7. Color-coded push buttons and
large, raised function indicators improve readability for the
visually impaired.
Heat Transfer Surface
Figure 6.Control Overlay, sizes 007–012
An advanced coil design is employed in all Type K units. The
copper tubes have an internal rifled surface to increase the heat
transfer capabilities of the refrigerant. Aluminum fins are mechanically bonded to the copper tubes to insure positive heat transfer.
The fins are lanced to increase the air turbulence making the
coil extremely efficient.
Heavy-Duty Construction
The Type K cooling chassis is constructed of heavy-gauge
steel for unsurpassed durability. It is insulated with a
waterproof material to prevent sweating. The dense insulation,
combined with heavy-gauge steel, results in a unit with very low
sound levels.
The design of the plug-in device connections allows for quick
and easy power disconnection without the use of tools. A convenient amp connector is used to transfer power to the cooling
chassis from the control box. The amp connector eliminates
hard-wired connections that hinder chassis removal for scheduled
maintenance. All unit sizes utilize the same amp connector to
facilitate interchangeability of spare chassis.
Figure 7.Control Overlay, size 019
Individual Room Conditioning
Heat Section
The concept of individualized room conditioning began many
years ago with the Type K conditioner. Over the years this design
has become the benchmark for quality and reliability. Continual
research and product improvement has allowed McQuay to remain the leader in the sectionalized unit market. Recent design
changes have further enhanced the efficiency and durability
of the Type K chassis. Many important features have been
developed. Those features relevant to this design change are
listed below.
There are three types of heat sections available for the Type K
units: hot water, steam, and electric resistance. Like the cooling
chassis, these sections are built to last. There are many unique
features of the Type K heating section that have contributed to
its popularity.
The heat section is independent of the cooling chassis. Unique
features of the Type K heat section are listed below.
•
•
•
“Fan” Option (Sizes 007 - 012)
A “fan only” function is provided to enable fan operation for
improved circulation and increased air filtration. The dual
speed fan is controlled by a unit mounted fan speed rocker
switch for user convenience.
Remote Control (Sizes 007 - 012 Only)
The Type K unit can be connected to a wall thermostat for
remote control operation. A variety of thermostats are compatible with this unit including many programmable varieties.
Multiple Unit Control (Sizes 007 - 012 Only)
Large conference rooms and hallways can be conditioned by
many units using a single thermostat. One unit is designated
as a control unit and up to seven units can be connected
to the control unit for synchronized operation. Any unit can
be designated as the control unit with only minor field wiring modifications to make the other units into the controlled
units.
•
Quiet Operation
Large forward curved fans are used on the indoor side to
provide efficient comfort conditioning with low sound levels.
The blow-through design and heavy-gauge sheet metal provide a high degree of attenuation not found in draw-through
designs.
• High Efficiency Motors
High efficiency, low sound producing PSC motors are utilized
by Type K units. All motors employ extended lube lines for
periodic lubrication during scheduled maintenance.
•
Factory Installed Valve (Sizes 007 - 012 Only)
Hot water and steam heat sections are furnished with a factory
installed valve. Normally open, 2-way line voltage valves are
supplied for hot water coils and normally closed 2-way line
voltage valves are supplied on steam valves. On size 019,
valves are furnished but not installed.
Figure 9.Short Control Box (sizes 007–012 shown)
• Constant/Cycle Fan Switch (Sizes 007 - 012 Only)
A constant/cycle fan switch is provided in the Type K unit
(sizes 007–012) allowing the fan to run continuously or cycle
with the thermostat. This switch is located on the control box
and is concealed behind the front panel to prevent unauthorized tampering. When the switch is placed in the “cycle” mode,
the indoor fan will energize when there is a call for heating,
cooling, or fan. Placed in the “constant” mode, the fan will
run continuously. Constant fan offers better air circulation and
improved fan filtration compared with the cycle option. The
large unit, size 019, is only available with constant fan.
Figure 8.Long Control Box (sizes 007–012 shown)
Figure 10. Electric Heat Section
Figure 11. Hydronic Heat Section
Room Cabinets
Wall Boxes
The room cabinet is designed to complement any room decor.
The heavy-gauge steel is coated with an attractive appliance
grade powder paint which is then oven baked for durability.
An adjustable kickplate is provided to accommodate various
wall opening locations. The standard adjustment is +/-1".
The room cabinet is designed to completely encompass the
unit and conceal any piping or electrical connections from the
room occupant. The front panel is removable for service access
of filters, valves or electrical connections. Hidden latches are
supplied to prevent unauthorized personnel from opening the
front panel.
On sizes 007-012 the discharge grille of the room cabinet is
equipped with individual four-way adjustable steel grilles. This
feature allows the owner to force the air in various directions to
prevent stagnation. An extruded aluminum discharge grille is
standard on the large unit 019 and optional for sizes 007–012.
This grille is available to further enhance the unit's appearance.
The Type K room cabinet is factory furnished in a variety of
depths to accommodate every wall thickness. The entire cabinet
is powder coated with an epoxy Antique Ivory finish and comes
complete with a handsome Oxford Brown reveal around the
perimeter for accent.
The Type K wall box is made from heavy-gauge steel and coated
with a tough epoxy powdered paint for corrosion protection. The
wall box is designed to be placed into the wall during construction to assure a snug fit.
The standard wall box can accommodate a wall depth of 13⅝''
without modifications. It can be easily adapted to deeper walls
with minor factory modifications. Wall box/sleeve extensions
are available for field installation through your McQuay sales
representative.
The dimensions of the wall box have not changed since the
unit was originally designed in 1958. Therefore, if the existing
wall box is in good condition, the old chassis or heat section
can be easily replaced without additional wall modifications.
Consequently, the unit can be replaced to provide high efficiency
operation with minimal disruption or downtime.
Figure 14. Wall Box
Figure 12. Cabinet
Figure 13. Extruded Aluminum Discharge Grilles
Filtration
The filter is a permanent, cleanable wire mesh filter that is
designed to provide superior dust collecting abilities.
Outdoor Louvers
The standard louver is a one-piece, extruded architectural aluminum type with a natural finish.
Louvers by others are acceptable as long as they meet factory specifications. They must have a minimum free area of 70%
or a pressure drop not exceeding 0.05 in. w.g. at 300 fpm face
velocity, and a blade design that will not cause recirculation of
condenser air.
Free area is defined by ASHRAE as the minimum area of the
openings in an air inlet or outlet through which air can pass.
Application of special louvers or building facade treatment
that may affect normal operation of the unit, or restrict free
air discharge of condenser airflow, should be referred to the
Application Engineering Department for evaluation. A louver
design that restricts the passage of condenser air or causes
condenser air to be recirculated will dramatically alter the performance of the unit. Unit capacity and efficiency may be decreased
and fan motor and compressor life may be shortened.
If the louver does not meet the above outlined requirements
or is only marginally acceptable, a drawing should be sent to the
Incremental Application Engineering Department for evaluation.
If acceptance still cannot be determined by the drawing, then
a sample of the proposed louver should be sent to McQuay for
testing and certification. The sample sent for testing must match
the wall opening for the unit selected.
Figure 15. Louver Designs
Figure 16. Architectural Louver
Typical Louver Design
Figure 15 shows some typical louver designs. The “X” dimension
represents the narrowest dimension through which air must pass.
The “Y” dimension represents the increment of rise between the
blades. To calculate the percentages of free area, divide dimension “X” by dimension “Y”.
Sample Calculation:
X
Free Area % = Y x 100
Where: X = 1.125
Y = 2.50
1.125
Free Area % = 1.50 x 100 = 75%
Performance Data
Unit Size
007
009
012 019
Btuh  7300
9500
Cooling
Watts 770
1060
EER (Btuh/Watt) 9.4
8.9
Airflow (CFM)
High/Low Speed290/210
290/210
Ventilation cfm 70
70
Voltage
115
208 230
265
208
230
265
208
“L” Amps 
–
–
–
–
20.2
18.3
15.8
20.2
Heater Watts
–
–
–
–
4200
4200
4200
4200
“M” Amps 
–
16.3 13.9
12.1
16.3
13.9
12.1
16.3
Electric Heaters
Heater Watts
–
3400 3200
3200
3400
3200
3200
3400
“S” Amps 
–
12.5 10.4
9.8
12.5
10.4
9.8
12.5
Heater Watts
–
2600 2400
2600
2600
2400
2600
2600
Hydronic Heat
Hot Water 15,500
15,500
(Btuh) 
Steam 19,200
19,200
“L” Heater
–
–
–
–
25.7
23.3
20.1
25.7
Minimum Circuit
“M” Heater
–
20.9 17.8
15.4
20.9
17.8
15.4
20.9
Ampacity“S” Heater
–
16.1 13.5
12.6
16.1
13.5
12.6
16.1
Hydronic
10.0
4.9 4.9
4.3
7.5
7.5
5.2
9.0
“L” Heater
–
–
–
–
30
25
20
30
Time Delay Fuse,
20
25
20
20
25
–
25 20
or if under 250V,“M” Heater
“S” Heater
–
20 15
15
20
15
15
20
Type HACR
Hydronic
15
15 15
15
15
15
15
15
11600 18700
1380 2300
8.4 8.1
290/210530/470
70 135
230
265
208 230
18.3
15.8
32.7 31.7
4200
4200
6800 7300
13.9
12.1
24.5 23.9
3200
3200
5100 5500
10.4
9.8
–
–
2400
2600
–
–
15,500 16,500
19,200 23,500
23.3
20.1
41.6 40.4
17.8
15.4
31.4 30.6
13.5
12.6
–
–
9.0
7.2
13.9 13.9
25
20
45 45
20
20
35 35
15
15
–
–
15
15
20 20
Notes:
 Based on ASHRAE and ARI test conditions of 95°F DB/75°F WB outdoors, 80°F DB/67°F WB inside.
 Includes fan motor.
 Based on 200°F EWT, 180°F LWT; 2 psig steam – 65°F EAT.
Tested and rated in accordance with ARI Standards 310 and 380.
Cooling Capacities at Nonstandard Conditions
Size 007
O.D.
Temp. Size 009
I.D. DB
Temp. 70
75
80
90
70
85
80
90
70
95
80
90
70
115
80
90
I.D. WB Total Capacity
Sensible
Temp.
Btuh
Capacity Btuh
61
67
61
67
73
61
67
73
61
67
61
67
73
61
67
73
61
67
61
67
73
61
67
73
61
67
61
67
73
61
67
73
7350
8290
7470
8120
9170
8330
8340
8970
6970
7890
7160
7710
8700
7990
8000
8500
6600
7480
6840
7300
8250
7650
7660
8070
5840
6640
6190
6460
7320
6940
6950
7140
4920
3500
7130
5790
4380
7950
7960
6730
4760
3350
6830
5640
4220
7630
7640
6600
4590
3200
6530
5500
4080
7300
7310
6470
4300
2900
5910
5220
3770
6620
6630
6120
Total
Watts
612
590
645
623
601
667
667
645
678
656
722
700
667
744
744
722
744
733
787
777
744
809
809
798
886
875
930
919
908
963
963
963
O.D.
Temp. I.D. DB
Temp. 70
75
80
90
70
85
80
90
70
95
80
90
70
115
80
90
Sensible
Temp.
Btuh
Capacity Btuh
61
67
61
67
73
61
67
73
61
67
61
67
73
61
67
73
61
67
61
67
73
61
67
73
61
67
61
67
73
61
67
73
9560
10800
9720
10570
11930
10840
10850
11680
9080
10260
9310
10040
11330
10400
10420
11060
8590
9730
8910
9500
10740
9960
9970
10500
7610
8640
8050
8400
9520
9030
9050
9300
5370
3820
7770
6320
4770
8670
8680
7340
5190
3660
7450
6150
4610
8320
8330
7200
5010
3490
7130
6000
4450
7970
7980
7060
4700
3160
6440
5690
4110
7230
7240
6680
Total
Watts
841
811
886
856
826
916
916
886
931
901
991
961
916
1021
1021
991
1021
1006
1082
1067
1021
1112
1112
1097
1217
1202
1277
1262
1247
1322
1322
1322
Cooling Capacities at Nonstandard Conditions
Size 012
O.D.
Temp. Size 019
I.D. DB
Temp. 70
75
80
90
70
85
80
90
70
95
80
90
70
115
80
90
Sensible
Temp.
Btuh
Capacity Btuh
61
67
61
67
73
61
67
73
61
67
61
67
73
61
67
73
61
67
61
67
73
61
67
73
61
67
61
67
73
61
67
73
Catalog 1302 / Page 10 of 32
11680
13180
11870
12910
14570
13240
13250
14260
11080
12530
11370
12260
13830
12710
12720
13510
10480
11890
10880
11600
13120
12160
12180
12830
9290
10550
9840
10260
11630
11030
11050
11360
6710
4780
9720
7900
5970
10840
10850
9170
6490
4570
9310
7690
5760
10410
10420
9010
6260
4360
8910
7500
5560
9960
9970
8820
5870
3950
8050
7120
5140
9030
9050
8350
Total
Watts
O.D.
Temp. 1089
1050
1147
1108
1069
1186
1186
1147
1205
1167
1283
1244
1186
1322
1322
1283
1322
1303
1400
1381
1322
1439
1439
1419
1575
1556
1653
1633
1614
1711
1711
1711
I.D. DB
Temp. 70
75
80
90
70
85
80
90
70
95
80
90
70
115
80
90
Sensible
Temp.
Btuh
Capacity Btuh
61
67
61
67
73
61
67
73
61
67
61
67
73
61
67
73
61
67
61
67
73
61
67
73
61
67
61
67
73
61
67
73
18830
21260
19140
20820
23490
21340
21370
22990
17870
20210
18340
19770
22300
20490
20510
21780
16900
19160
17540
18700
21150
19600
19630
20680
14980
17020
15860
16550
18750
17790
17810
18310
11100
7910
16070
13070
9870
17920
17950
15170
10730
7560
15400
12720
9530
17210
17230
14890
10360
7210
14730
12400
9200
16470
16490
14590
9710
6540
13320
11770
8510
14940
14960
13810
Total
Watts
1821
1756
1918
1853
1788
1983
1983
1918
2016
1951
2146
2081
1983
2211
2211
2146
2211
2178
2341
2309
2211
2406
2406
2374
2634
2601
2764
2731
2699
2861
2861
2861
Heating Capacities at Nonstandard Conditions
The hydronic coil can be used with either hot water or steam.
To determine the correction factor at nonstandard conditions using hot water, use Figure 17. Follow the known flow rate to the
corresponding EWT curve and read to the left to determine the
heating correction factor. Apply this percentage to the standard
ratings shown on page 9.
Figure 17. Hot Water Heating Correction Factor Curve
For conditions at temperatures other than 65ºF, determine
the correction factor using Figure 18. From a known entering air
temperature, follow up to the line and then go left to determine
the correct percentage. Apply this percentage to Figure 17 (when
using hot water) before plotting the heating correction factor.
Figure 18. Heating Capacity Correction Factor Curve
To determine the water pressure drop (WPD) at nonstandard
flow rates, enter known gpm on Figure 20. Follow to conditioner
line and read left for appropriate WPD. To find the WPD of the
valve, repeat procedure. Add the WPD of the valve and the WPD
of the conditioner to get the total.
Figure 20. Water Pressure Drop Curve
For ratings at nonstandard conditions using steam, refer to
Figure 19. Follow the known steam pressure to the curve corresponding to the known entering air temperature. Read down
to determine the correction factor. Multiply this number by the
standard rating found on page 9 to determine the rating at nonstandard conditions.
Figure 19. Steam Heating Correction Factors
Btu Conversion Factor
For Steam
Rating Point
2 psig – 65ºF Entering Air
To use curve:
1.
From known steam pressure and known air temperature, determine conversion factor.
2. Multiply published Btuh rating by conversion factor.
Dimensional Data
Figure 21. Sizes 007 through 019
D
E
C
A
B
L
M
F
H
G
J
K
Dimensions – Inches
Unit Size
007–012
019
Dimensions – mm
Unit Size
007–012
019
A
48
60
B
2½ Min.
2½ Min.
C
7¼ Min.
8½ Min.
D
36¼
46¼
E
5¾
6⅞
F
G
24½ 1311⁄16
27⅜ 15⅞ A
1219
1524
B
64 Min.
64 Min.
C
D
184 Min. 921
216 Min.
1175
E
146
175
F
648
695
H
21
24
G
H
348 533
403 610
J
31⁄2-5½ Adj.
4-6 Adj.
K
1¾
3 L
8 9¼
M
1
5/8
J
89-140 Adj.
102-152 Adj.
K
44
76
L
203
235
M
25
16
Units With Electric Heat (Sizes 007 through 012)
Figure 22.
A
H
8"
(203mm)
Long Control
Box 
M

B

Room Cabinet
J
Room Cabinet
Mounting Holes (4)

E
F
G
K
Wall Box
Heat Section
Power Cord
D
Cooling Chassis
Power Cord
Front View
1
⁄4''
(6mm)
1
⁄2''
(12mm)
Side View
Notes:
 Guest room control, low voltage or master-slave wiring connection made
at control box.
 Junction box with knockouts for 1/2'' (12mm) 3/4'' (19mm) conduit.
 See page 16, table 2 for dimension B.
in.
mm
A
453⁄4
1162
D
37
940
E
173⁄4
451
F
G
H
241⁄2 1311⁄16 227⁄8
622 348 581
J
10
254
K
93⁄16
233
M
11⁄2
38
Units With Hydronic Heat (Sizes 007 through 012)
Figure 23. Short Control Box
The short control box is used with standard unit mounted manual changeover control, and unit mounted manual changeover with
emergency standby (ESB) power supply.
A
Short
Control Box
H
Hydronic
M
Coil
8"
(203mm)
Room
Cabinet
B


Room Cabinet
Mounting Holes (4)
J
P
F
E
N
G
K
Wall Box
L
1
⁄2''
(12mm)
Junction Box 
D
Side View
Room Cabinet Removed
Front View
Notes:
 See page 14 for dimensions of factory installed valve
and return piping stub.
 Junction box 7⁄8" (22mm) diameter knockouts for 1⁄2"
(12mm) conduit.
 See page 16, table 2 for dimension B.
1
⁄4''
(6mm)
in.
mm
A
453⁄4
1162
D
37
940
E
251⁄2
648
F
G
H
241⁄2 1311⁄16 227⁄8
622 348 581
J
10
254
K
16
406
L
41⁄2
114
M
11⁄2
38
N
143⁄4
375
P
13⁄4
44
Figure 24. Long Control Box
The long control box is used with optional special controls such as Guest Room Control (GRC), Night Setback (NSB), and
remote thermostats.
Note: Left-hand piping must be used with the long control box design.
A
H
Hydronic
M
8"
(203mm)
Long
Control Box
Coil
Room
Cabinet
B

E

J
Room Cabinet
Mounting Holes (4)
F
Wall Box
Heat Chassis
Power Cord
K
L
G
Flexible Conduit
Power Supply Cord
D
Cool Chassis
Power Cord
Front View
in.
mm
A
453⁄4
1162
1
⁄4'' (6mm)
Side View
Room Cabinet Removed
Junction Box
(By Others)
Notes:
 See details G and H on page 14 for dimensions of factory installed
valve and return piping stub.
 See page 16, table 2 for dimension B.
1
⁄2''
(12mm)
D
37
940
E
251⁄2
648
F
G
H
241⁄2 1311⁄16 227⁄8
622 348 581
J
10
254
K
16
406
L
41⁄2
114
M
11⁄2
38
Suggested Piping Arrangements
Figure 25.
Hot Water Supply
Steam Supply
Detail A — Hot water supply R.H., return L.H. 
Detail B — Steam supply R.H., return L.H. 
C
L
C
L
2"
(51mm)
Return Stub
25/8"
(67mm)
C
L
Return Stub
W
Y
S
T
25/8"
(67mm)
V
Detail C — Hot water supply R.H., return R.H. 
C
L
Return
Stub
2"
(51mm)
V
Detail D — Steam supply R.H., return R.H. 
C
L
U
T
S
C
L
C
L
2"
(51mm)
U
1"
(25mm)
Return Stub
W
T
Y
1"
(25mm)
V
T
Detail E — Hot water supply L.H., return R.H. 
Detail F — Steam supply L.H., return R.H. 
C
L
2"
(51mm)
Return Stub
2"
(51mm)
V
C
L
25/8"
(67mm)
C
L
Return Stub
C
L
W
25/8"
(67mm)
Y
2"
(51mm)
U
S
V
Detail G — Hot water supply L.H., return L.H. 
2" (51mm)
C
L
Return Stub
V
Notes:
 Available on size 009 – 012 only.
 Available on size 009 – 012 only, and 019.
 Available on size 009 – 012 only, and 019.
 Available on size 009 – 012 only, and 019.
U
Detail H — Steam supply L.H., return L.H. 
C
L
C
L
C
L
1"
(25mm)
S
2"
(51mm)
U
in.
mm
S
191⁄4
489
T
213⁄4
552
U
211⁄4
540
V
101⁄2
267
S
Return Stub
W
1" (25mm)
S
V
W
231⁄2
597
Y
201⁄4
514
Y
V
U
Units With Electric Heat (Size 019)
Figure 26.
A
Long
Control Box
H
91/4"
(203 mm)
Control Box
Room Cabinet
B
Main Power Cord
1
Heat Chassis
Power Cord
Cool
Chassis
Power
Cord
Room
Cabinet
Mounting
Holes (4)
F
G
Wall Box
(End View
w/o Cabinet)
Heat Section
Power Cord
Cool Chassis
Power Cord
D
Side View
Front View
4" x 4" Junction Box
(Mounted by Others)
Field Mounted to L.H. Edge of Wall Box
in.
mm
Notes:
 Refer to page 16, table 2 for “B” dimension.
A
591⁄2
1511
D
461⁄4
1175
F
273⁄8
695
G
157⁄8
403
H
291⁄2
749
Units With Hydronic Heat (Size 019)
Figure 27.
Coil Stubs for
Field Piping
Control Box
Room Cabinet
Long
Control
Box
Main Power Cord
Heat Chassis
Power Cord
Cool
Chassis
Power
Cord
Room
Cabinet
Mounting
Holes (4)
B
1
Wall Box
(End View
w/o Cabinet)
Heat Chassis
Power Cord
Cool Chassis
Power Cord
Front View
Side View
4" x 4" Junction Box
(Mounted by Others)
Field Mounted to L.H. Edge of Wall Box
Notes:
 Refer to page 16, table 2 for “B” dimension.
Wall Box and Room Cabinet Dimensions
Figure 28. Drawing Not To Scale
Table 1.
Dimension “C” – Cabinet Depth
Dimension “A”
007–012
019
in.
mm
in.
mm
in.
mm
1
210 —
—
0 to -1
0 to -25 8 ⁄4
235 81⁄2
216
0 to +1
0 to +25 91⁄4
260 91⁄2
241
1 to 2
25 to 51
101⁄4
286
101⁄2
267
2 to 3
51 to 76
111⁄4
1
1
311
11 ⁄2
292
3 to 4
76 to 102
12 ⁄4
327
121⁄2
318
4 to 5
102 to 127
131⁄4
362
131⁄2
343
5 to 6
127 to 152
141⁄4
387
141⁄2
368
6 to 7
152 to 178
151⁄4
1
1
413
15 ⁄2
394
7 to 8
178 to 203
16 ⁄4
438
161⁄2
419
8 to 9
203 to 229
171⁄4
NOTICE
Dimension “B” will vary by the thickness of the wall, the louver, the amount
the louver is recessed into the wall (if any) and the amount the wall box extends
into the room. The minimum “B” dimension is 21⁄2'' (64mm). The wall box can
be factory furnished in increments between 21⁄2'' (64mm) and 10'' (254mm).
Wall box extensions in 1'' (25mm) increments can also be provided to attach
to the rear of the wall box.
Table 2.
Dimensions — inches
Wall Box
“B” Dimension
Overall Length
007–012 21⁄2 31⁄2
019 21⁄2 31⁄2
007–012
101⁄2
111⁄2
123⁄4
019
113⁄4
4
41⁄2
12
133⁄4
5
51⁄2
13
143⁄4
6
61⁄2
14
153⁄4
7
71⁄2
15
163⁄4
8
81⁄2
16
173⁄4
9
91⁄2
17
183⁄4
10
101⁄2
18
193⁄4
007–012 64 89
019 64 89
292
007–012
267
324
019
298
102
114
305
349
127
140
330
375
152
165
356
400
178
191
381
425
203
216
406
451
229
241
432
476
254
267
457
502
Dimensions — mm
Wall Box
“B” Dimension
Overall Length
Outdoor Louver Dimensions
Figure 30. Unit Size 019
Figure 29. Unit Sizes 007 through 012
Extruded Architectural
Extruded Architectural
131⁄2"
(343mm)
*1511⁄16"
(399mm)
11⁄8"
(29 mm)
36" (914mm)
11⁄8"
(29mm)
46" (1168mm)
Louver Frame
Louver Frame
*137⁄8"
(352mm)
*161⁄4"
(413mm)
161⁄8"
(410mm)
*361⁄4" (921mm)
381⁄2" (978mm)
3 3 ⁄8 "
(86mm)
1815⁄16"
(416mm)
*461⁄2" (1181mm)
48 ⁄8" (1235mm)
5
*Note: Inside dimensions. External dimensions for wall opening are
141⁄32" x 369⁄16" (356mm x 929mm).
1
⁄16"
(2mm)
33⁄8"
(86mm)
*Note: Inside dimensions. External dimensions for wall opening are
16⅜" x 46¾" (416mm x 1187mm).
COOL SECTION
Unit Mounted Manual Changeover
S1 Switch Contact Positions
C1
C2
C3
GRC
HL
HTR
MP
NSP
P1
R1
R2
R3
CONTROL BOX
Capacitor, Indoor Fan
Capacitor, Outdoor Fan
Capacitor, Compressor
Guest Room Control
High Limit
Heater
Motor Protector
Night Setback Control
Plug, Control Box/Heat Section
to Cool Section
Relay, Heat
Relay, Cool
Relay, Night Setback (NSB)
R4
R5
R6
R7
S1
S2
S3
S4
T1
TB1
TB2
TB3
TB4
TB6
Relay, Guest Room Control (GRC)
Relay, Hot Water Valve
Relay, Control
Control Switch
Fan Speed Switch
Fan Cycle Switch
Damper Switch
Transformer
Terminal Block, Control Box
Terminal Board (24V), Control Box
Terminal Board, Heat Section
Terminal Board, Cool Section
Terminal Box
HEAT SECTION
Standard Chassis With Electric Heat & MCO Controls (Sizes 007—012)
Typical Wiring Diagrams
TC1
TC2
TC3
TC4
VM
WN
Room Thermostat
Night Setback Thermostat (NSB)
Heat Fan Lockout
Low Ambient Lockout
Valve Motor
Wire Nut
COOL SECTION
C1
C2
C3
F1
HL
HTR
MP
P1
P2
P3
P4
P5
R1
R2
CONTROL BOX
Fuse
High Limit
Heater
Motor Protector
Plug, Heat Section to Cool Section
Plug, Heat Section to Control Box
Plug, PC Board
Plug, on Master Wire Harness
Relay, Run
Relay, Outdoor Fan Motor
R3
R4
R5
R6
R7
R9
S1
S4
T1
TB2
TB3
TB4
TB5
TB6
TC1
TC2
TC5
VM
WN
Room Thermostat
Freezestat
Valve Motor
Wire Nut
Note: Large heat shown. Refer to unit diagram for
details of small or medium heat.
HEAT SECTION
Relay, Cooling
Relay, Indoor Fan Motor
Relay Heating 1st Stage
Relay, Heating 2nd Stage
Control Switch
Damper Switch
Transformer
Terminal Box
Terminal Box
Terminal Box
Terminal Box
Terminal Box
Standard Chassis With Electric Heat & MCO Controls (Size 019)
COOL SECTION
C1
C2
C3
GRC
HL
HTR
MP
NSP
P1
R1
R2
R3
Guest Room Control
High Limit
Heater
Motor Protector
to Cool Section
Relay, Heat
Relay, Cool
HEAT SECTION
R4
R5
R6
R7
S1
S2
S3
S4
T1
TB1
TB2
TB3
TB4
TB6
TC1
TC2
TC3
TC4
VM
WN
Room Thermostat
Heat Fan Lockout
Low Ambient Lockout
Valve Motor
Wire Nut
CONTROL BOX
Relay, Control
Control Switch
Fan Speed Switch
Fan Cycle Switch
Damper Switch
Transformer
Terminal Box
Standard Chassis With Hot Water Heat & MCO Controls (Sizes 007—012)
COOL SECTION
C1
C2
C3
F1
HL
HTR
MP
P1
P2
P3
P4
P5
R1
R2
CONTROL BOX
Fuse
High Limit
Heater
Motor Protector
Plug, PC Board
Relay, Run
R3
R4
R5
R6
R7
R9
S1
S4
T1
TB2
TB3
TB4
TB5
TB6
TC1
TC2
TC5
VM
WN
HEAT SECTION
Relay, Cooling
Control Switch
Damper Switch
Transformer
Terminal Box
Terminal Box
Terminal Box
Terminal Box
Terminal Box
Standard Chassis With Hot Water & MCO Controls (Size 019)
Room Thermostat
Freezestat
Valve Motor
Wire Nut
COOL SECTION
C1
C2
C3
GRC
HL
HTR
MP
NSP
P1
R1
R2
R3
Guest Room Control
High Limit
Heater
Motor Protector
to Cool Section
Relay, Heat
Relay, Cool
HEAT SECTION
R4
R5
R6
R7
S1
S2
S3
S4
T1
TB1
TB2
TB3
TB4
TB6
TC1
TC2
TC3
TC4
VM
WN
CONTROL BOX
Relay, Control
Control Switch
Fan Speed Switch
Fan Cycle Switch
Damper Switch
Transformer
Terminal Box
Standard Chassis With Steam Heat & MCO Controls (Sizes 007—012)
Room Thermostat
Heat Fan Lockout
Low Ambient Lockout
Valve Motor
Wire Nut
COOL SECTION
C1
C2
C3
F1
HL
HTR
MP
P1
P2
P3
P4
P5
R1
R2
CONTROL BOX
Fuse
High Limit
Heater
Motor Protector
Plug, PC Board
Relay, Run
R3
R4
R5
R6
R7
R9
S1
S4
T1
TB2
TB3
TB4
TB5
TB6
HEAT SECTION
Relay, Cooling
Control Switch
Damper Switch
Transformer
Terminal Box
Terminal Box
Terminal Box
Terminal Box
Terminal Box
Standard Chassis With Steam Heat & MCO Controls (Size 019)
TC1
TC2
TC5
VM
WN
Room Thermostat
Freezestat
Valve Motor
Wire Nut
COOL SECTION
C1
C2
C3
GRC
HL
HTR
MP
NSP
P1
R1
R2
R3
Guest Room Control
High Limit
Heater
Motor Protector
to Cool Section
Relay, Heat
Relay, Cool
R4
R5
R6
R7
S2
S3
S4
T1
TB1
TB2
TB3
TB4
TB6
TC1
Relay, Control
Fan Speed Switch
Fan Cycle Switch
Damper Switch
Transformer
Terminal Box
Room Thermostat
CONTROL BOX
TC2
TC3
TC4
VM
WN
Heat Fan Lockout
Low Ambient Lockout
Valve Motor
Wire Nut
HEAT SECTION
Standard Chassis With Electric Heat & 24V Wall Stat (Sizes 007—012)
COOL SECTION
C1
C2
C3
GRC
HL
HTR
MP
NSP
P1
R1
R2
R3
CONTROL BOX
Guest Room Control
High Limit
Heater
Motor Protector
to Cool Section
Relay, Heat
Relay, Cool
R4
R5
R6
R7
S1
S2
S3
S4
T1
TB1
TB2
TB3
TB4
TB6
Relay, Control
Control Switch
Fan Speed Switch
Fan Cycle Switch
Damper Switch
Transformer
Terminal Box
TC1
TC2
TC3
TC4
VM
WN
HEAT SECTION
Standard Chassis With Hot Water Heat & 24V Wall Stat (Sizes 007—012)
Room Thermostat
Heat Fan Lockout
Low Ambient Lockout
Valve Motor
Wire Nut
COOL SECTION
C1
C2
C3
GRC
HL
HTR
MP
NSP
P1
R1
R2
R3
CONTROL BOX
Guest Room Control
High Limit
Heater
Motor Protector
to Cool Section
Relay, Heat
Relay, Cool
R4
R5
R6
R7
S1
S2
S3
S4
T1
TB1
TB2
TB3
TB4
TB6
Relay, Control
Control Switch
Fan Speed Switch
Fan Cycle Switch
Damper Switch
Transformer
Terminal Box
HEAT SECTION
Standard Chassis With Steam Heat & 24V Wall Stat (Sizes 007—012)
TC1
TC2
TC3
TC4
VM
WN
Room Thermostat
Heat Fan Lockout
Low Ambient Lockout
Valve Motor
Wire Nut
Remote Mounted Thermostats (Sizes 007–012 only)
Type K units can be controlled by a remote mounted, low voltage wall thermostat. Several variations of low voltage wall
thermostats are available. The most common types used are
manual changeover and automatic changeover. Figures 31 and
32 illustrate the typical wiring schematics for proper connection
of the Type K series units to the wall thermostat.
Figure 31. Manual Changeover (MCO)
Thermostat (106069001)
Figure 32. Automatic Changeover (ACO)
Thermostat (105570901)
Jumper
R
N/A
G
Y
W
24V
24V
Fan Cool
Power Common
R
A
C
MCO T' Stat
RC
C
G
Y1
W1
R
C
A
G
W2
Heat
W2
G
R
Y1
W1
Control Unit
Terminal Board
Factory installed jumper
Y1
W1
Control Unit
Terminal Board
Factory installed jumper
Master Unit Control
When using remote mounted thermostats, it is often necessary
to control more than one Type K unit from a single thermostat.
Figure 33 illustrates schematically how a controlling and controlled unit(s) are connected to a single thermostat.
Note that the jumper between terminals C and A of the control
unit is removed. This takes the controlling unit's transformer out
of the circuit allowing it to duplicate the operation of the control-
ling unit. The controlling unit's transformer handles 50 VA power
draw. Each controlling unit has up to 5.6 VA power draw. Up to
seven controlled units can be connected to the controlling unit
without danger of overheating the main transformer, although it
is unlikely this many controlled units will be connected to one
controlling unit.
Figure 33. Multiple Unit Control with Each Available Thermostat
Jumper
R
Thermostat
Choice
RC
C
G
Y1
W1
4
105570901
(See Figure 32)
Jumper
R
RC
C
G
Y1
W1
3
105570801
G
Y1
W1
2
105570710
CAUTION
Be sure to check the amperage rating of the wall thermostat to prevent exceeding the maximum amperage of the
thermostat contacts.
Jumper
RH
RC
R
G
24V
24V
Fan
Power Common
R
C
A
Y
Cool
NOTICE
W
1
106069001
(See Figure 31)
If more than 6 controlled units, control unit transformer
must be changed and thermostat contact capability must
be considered.
Heat
G
W2
Y1
W1
Control Unit (single)
Terminal Board
G
W2
Y1
W1
Controlled Unit (1)
Terminal Board
Factory installed
jumper
R
Up to 6
controlled units
(see notice)
C
A
Remove this jumper
on all controlled unit(s)
Energy Saving Options
Guest Room Control (GRC)
This additional control, widely used by hotel/motel operations, is provided for use on Type K equipment. GRC allows
the owner to substantially reduce energy consumption by
de-energizing the equipment in unoccupied spaces. The
Incremental units are wired to a central location, usually
the front desk, where they are controlled by a toggle switch
in a control panel (supplied by others). The units remain
de-energized until the room becomes occupied, at which time
the clerk can energize the equipment from the front desk (see
Figure 34).
Night Setback Control (NSB)
Additional savings can be achieved through use of the night setback control (NSB). NSB incorporates an additional unit mounted
thermostat to maintain a minimum, predetermined room temperature. The temperature is set at the factory to 55ºF (13ºC). This
setpoint is adjustable by the owner to activate anywhere between
45ºF and 55ºF (7ºC and 13ºC). If the room temperature drops
below the owner selected minimum temperature, the heat cycle
and indoor fan are energized until the night setback thermostat
is satisfied. NSB overrides the unit control even if it is placed in
the “stop” position or inadvertently left in the “cool” position.
Outdoor Air Dampers
Type K units are furnished with an automatic outdoor air damper
as standard. The automatic damper is wired in parallel to the
indoor fan safety. If the unit is placed in the “cycle” mode, the
fan and damper cycle as the thermostat cycles. If the unit is
placed in the “constant” mode, the fan runs continuously and
the damper is always open.
The automatic damper feature can be overridden during NSB
if the unit is so equipped. This prevents cold air from entering the
occupied space when the unit is simply bringing the room back
to the night setback temperature. Since NSB is used when the
room is unoccupied, there is no reason to introduce outside air
during this cycle.
Figure 34. Guest Room Control
Low voltage transformer (by others)
Conditioner #1
Switch #1
Occupied
Unoccupied
Switch #2
Switch #3
Occupied
Unoccupied
Conditioner #2
Occupied
Unoccupied
Conditioner #3
Central control panel
(by others)
Relay
L1
L2
Type K Model Engineering Guide Specifications
General
Furnish packaged incremental comfort conditioners of the sizes and capacities shown on the schedule and/or specifications. The
units shall be located as shown on the drawings and each shall include a wall box, room cabinet, separate cooling chassis, heating
section, separate control box, and outdoor louver.
All units shall be ETL listed for safety. Units shall be tested and rated in accordance with ARI Standards 310 and 380. Units shall
be McQuay Type K Model designated with prefixes PKES (cooling chassis) or PKHS (heating section) or equals.
Units shall be designed to operate on (115) (208) (230) (265) volts, 60 Hz, single-phase power.
The minimum energy efficiency ratio (EER) in Btu per hour per watt for each packaged incremental comfort conditioner must be
8.0 for all sizes.
Cooling Chassis
Cooling chassis shall be slide-in, plug-in with a self-contained,
hermetically sealed refrigerant circuit. All chassis sheet metal
parts shall be constructed of heavy-gauge steel. The chassis
shall be insulated with a waterproof material to prevent sweating
and reduce sound levels.
The cooling chassis shall consist of the following components:
Vibration isolated, permanent split capacitor, rotary-type
compressor with built in thermal overload; rifled copper tubed
evaporator (indoor) and condenser (outdoor) coils with high efficiency raised lance aluminum plate fins mechanically expanded
to the tubes for maximum heat transfer and a capillary restrictor
type refrigerant metering device supplemented with a constant
pressure automatic expansion valve. Coils shall be factory tested
at 600 psig.
Condenser airflow system shall consist of a separate, single
speed PSC motor with an aluminum blade centrifugal fan. The
motor shall be totally enclosed and permanently lubricated with
external oilers for prolonged life. The fan shall be forward curved
and statically and dynamically balanced to provide for quiet and
smooth operation.
The cooling chassis shall also be furnished with a positive
closing, automatic, motorized outdoor air damper that opens
whenever the indoor fan is energized, except during night setback operation. A toggle switch shall be provided for manual
override of the damper.
During the cooling cycle, the compressor and both the outdoor/condenser and indoor/evaporator fan motors shall be energized. Condensation accumulated in the indoor/evaporator drain
pan shall be drained into the outdoor section of the unit where it
is to be completely removed by evaporation. Evaporation shall be
accomplished by uniformly distributing the condensate over the
condenser coil via airflow generated by the outdoor/condenser
fan. Condensate shall not come in contact with fan or fan motor.
Slinger rings and propeller fans are not an acceptable solution
for condensate removal.
Heating Section
The heat section shall be separate from the cooling chassis
and shall incorporate an indoor/evaporator fan assembly. This
assembly shall consist of two centrifugal fans that are forward
curved and constructed out of aluminum with steel hubs and
directly connected to a two-speed motor. Fans shall be statically and dynamically balanced to provide for quiet and smooth
operation. The indoor/evaporator fan motor shall be two speed,
permanent split capacitor, totally enclosed and permanently
lubricated with external oilers for prolonged life. Built-in overload
protection shall come standard with the motor.
(Electric Resistance Heat Only Models) During the heating cycle, only the indoor/evaporator fan motor and electric
resistance heaters are energized. The outdoor/condenser fan
motor and compressor shall not be energized. Heaters shall be
open wire type with quick response and high limit cutout. Electric
resistance heaters shall be sized to meet heating requirements
as shown on the schedule and/or specifications. Electric resistance heaters must not be visible or accessible through the
indoor discharge grill. An electrical junction box shall be furnished
for connection to field supplied power source. Additionally, a
disconnect plug shall be factory installed for quick connection
to the control box.
(Hydronic Heat Models) The heating coil shall be suitable
for hot water or steam supply and have a factory furnished (normally open) (normally closed) 2-way control valve. During the
heating cycle only the indoor/evaporator fan motor, the control
valve and automatic fresh air damper shall be energized. The
outdoor/condenser fan motor and compressor shall not be energized. The heating coil shall have copper tubes with aluminum
fins mechanically bonded for maximum heat transfer. Return
piping shall be 5 /8 " O.D. plain copper tube.
Control Box
The control box shall be a separate component with plug-in
connections to the heating section and cooling chassis. For sizes
up to 14,000 Btuh, a concealed switch shall be furnished to automatically cycle or provide constant operation of the indoor fans.
When placed in “Cycle” mode, the indoor/evaporator fans shall
be automatically controlled by the thermostat when the HEAT,
COOL, or FAN modes are selected. When placed in “Constant”
mode, the fan shall run continuously except when the “STOP”
button is depressed. Unit sizes above 12,000 Btuh shall always
be furnished with constant fan operation only.
The control overlay must be designed for the visually-impaired
by containing large, raised function indicators and color-coded
selector buttons placed on a white polycarbonate membrane.
Raised function indicators must conform to standards set by the
National Federation of the Blind and comply with the federally
mandated American Disabilities Act (ADA).
Type K Model Engineering Guide Specifications (Continued)
Room Cabinet
Wall Box
The room cabinet shall be made of heavy-gauge steel and
coated with oven baked polyurethane powder paint for maximum
protection. To accommodate various wall opening locations and
floor irregularities, an adjustable kickplate shall be furnished with
a standard adjustment of +/- 1". A removable front panel shall be
supplied for service access of the filter, electrical connections,
cooling chassis and heat section. Hidden latches shall be provided to prevent unauthorized personnel from removing the front
panel. Indoor air discharge grilles shall be equipped with four-way
positional [stamped steel] [extruded aluminum] covered with
an oven baked epoxy powder paint for maximum protection.
The wall box shall be constructed from 16-gauge steel and
welded for strength and durability. Once assembled, the wall
box shall be coated with an oven baked epoxy powder paint to
assure maximum corrosion protection.
Outside Air Louvers
Outside air louvers shall be (stamped) (extruded architectural) anodized aluminum as shown on plans. Louver shall
be (finished natural) (painted) as shown on the schedule.
(Stamped louvers shall be heavy gauge anodized aluminum
of no less than 16 gauge.) Special field fabricated louvers must
be approved
Filtration
Filtration shall be accomplished using a permanent, cleanable
aluminum wire mesh filter.
Warranty
All McQuay equipment is sold pursuant to its standard terms and conditions of sale, including Limited
Product Warranty. Consult your local McQuay Representative for warranty details. Refer to Form
933-43285Y. To find your local McQuay Representative, go to www.mcquay.com.
This document contains the most current product information as of this printing. For the most up-to-date
product information, please go to www.mcquay.com.
Products Manufactured in an ISO Certified Facility.
© 2010 McQuay International • www.mcquay.com • (800) 432-1342
Catalog 1302 (3/10)

McQuay Type K Catalog 1302

Transcription

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