Viega ProRadiant Pocket Guide

Transcription

Viega ProRadiant
Pocket Guide
The global leader
in plumbing, heating
and pipe joining systems
Thank you for choosing Viega. Welcome!
Viega’s global legacy of excellence began in 1899 when our founder, Franz-Anselm
Viegener of Attendorn, Germany, introduced an innovative brass beer tap. In 1901,
Viegener’s company began manufacturing home plumbing products.
In 1999, Viega came to North America, revolutionizing plumbing, heating and
pipe joining systems. The Viega ProPress system helped installers make reliable
connections in less time with less labor than conventional pipe joining methods.
Other innovative Viega solutions for plumbing include versatile PEX piping options
and trustworthy PEX Press fittings. Viega ProRadiant systems offer heating and
cooling solutions with complete support and service every step of the way.
By choosing to install a Viega ProRadiant system, you have joined the ranks of
installers across the country who believe there is no substitute for quality. Viega
has a history of bringing excellence and innovation to the hydronic industry.
It is the business of our engineers to research and develop complete systems that
provide you the most effective and easy-to-use products available. In the following
pages, you will be guided through the layout, installation and start-up of our
residential and commercial products.
Call 877-843-4262 for your local District Manager and wholesale location.
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Table of contents
Frequently Asked Questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Design Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Insulation Recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Manifolds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Stainless Manifold Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Copper Manifold Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Soldering Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Concrete Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Snap Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Climate Mat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Climate Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Climate Trak. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Snow Melt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Valve Sizing Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
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Table of contents (cont.)
Circulator Sizing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Selecting the Percent Glycol Mixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Floor Coverings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Sensor Resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Settings for Basic Heating Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Basic Snow Melt Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Advanced Snow Melt Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Terms & Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Viega Product Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
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Frequently Asked Questions
Q
A
What is ViegaPEX Barrier tubing?
ViegaPEX Barrier tubing is a type
of Pex tubing used in heating
applications that has a special ethylene
vinyl alcohol layer (EVOH) to restrict
oxygen permeation through the tube.
Q
A
Q
A
When do I need to use oxygen
barrier tubing?
In a closed hydronic system where
there are ferrous components.
Q
A
Q
A
What is the UV exposure rate for
ViegaPEX Barrier tubing?
Ninety days.
What can I do if I run a non-barrier
tubing on my closed loop
heating system?
A heat exchanger can be
installed to isolate your ferrous
components. Your water can be treated
and maintained with inhibitors.
Q
A
What fitting would be suggested to
make a repair in a slab?
Viega PEX Press Coupling (bronze)
press couplings with repair
coupling wrap that are under warranty
for 30 years when properly installed.
Q
A
What is the maximum temperature
and pressure ViegaPEX Barrier
tubing can handle?
As temperature increases, the
pressure decreases. The tubing
can handle continuous operations at the
following temperatures and pressures:
•200°F @ 80 psi
• 180°F @ 100 psi
•73.4°F @ 160 psi
What is groove tube?
Groove tube is a silicone-based
caulking with additives that aid in
heat transfer. It is used in Climate Panel
and Heat Transfer Plate installations.
Q
A
Q
A
Can Viega ProPress connections
be used with copper in tube
baseboard?
Yes, provided a stiffener insert is
used inside the fin tube.
Q
A
Can antifreeze be used with
ViegaPEX Barrier tubing?
Yes, propylene and ethylene glycol
antifreeze (made specifically for
a hydronic system) can be used with
ViegaPEX Barrier tubing. For overall
performance of the hydronic system use
a maximum mixture of 50% glycol.
Can I use one outdoor sensor with
many basic heating controls?
Each outdoor sensor can supply
input to only one basic heating
control. If a multiple outdoor sensor is
used, up to four basic heating controls
can share one multiple outdoor sensor.
Q
A
What is suggested for testing a
radiant system?
Air or water test not less than 100
psi or 1.5 times working pressure
for one hour.
Continued on next page.
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Frequently Asked Questions (Continued from previous page)
Q
If the circuits come down from
the ceiling to my manifold, can
I flip the manifold so that the SVC
connections face up?
Yes, the manifold may be installed
facing up or down. If installed
with connections facing up, it would be
suggested to swap the locations of the
air bleeder and purge valves.
Q
A
What is the minimum thickness
necessary for a thin slab pour?
A minimum of 3/4" of concreteor gypsum-based material is
required on top of the tubing.
Q
A
Q
A
Can crimp fittings be used
on a radiant system?
Yes, as long as the crimp fitting
remains accessible.
What can I use to attach my tubing
to wire mesh in a concrete pour?
Plastic zip ties are most common
when attaching ViegaPEX Barrier
tubing to wire mesh. Refer to the
concrete installation section for other
attachment options.
Should I insulate below the
radiant tubing?
Yes, but please refer to the local
code and/or this installation guide.
Q
A
How do I know what size tubing
and what spacing to use in my
radiant system?
You will need to have a heat loss
and radiant design completed
prior to installing your radiant system.
For a Viega design, you can contact
our Heating Design Dept. at
www.viega.net or by calling
877-843-4262 x 351.
What is the max GPM per circuit
on Viega’s Stainless Manifolds?
Two gpm per circuit with a
maximum of 18 gpm per manifiold.
Does it matter where I locate my
circulator in conjunction with my
mixing or diverting valve?
A circulator would be installed on
the outlet side of the mixing valve
so the fluid would be pulled through the
valve. On a diverting valve, the circulator
would be installed just before the
diverting valve on the inlet side and the
fluid would be pushed through the valve.
Please refer to piping diagrams found in
this pocket guide.
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What does SVC mean?
Stadler Viega Connection.
Whenever you see this type
of connection you know it will have
consistent Viega proprietary threading.
A
Q
A
Q
A
Q
A
Q
A
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Design Information
Before starting your installation, ensure that a proper design has been completed.
The information listed below will be required to complete a design.
If you would like Viega to complete a design for you, contact our Heating Design Dept.
at www.viega.net or by calling 877-843-4262 x 351.
Residential Design
(Bill of Material and Radiant Floor
Heating [RFH] report)
•Contact information
•Project name
•Floor plan drawings in readable
format (dwg, tif, pdf, hard copy)
•Completed design request form
•Geographic location
(city and state)
•R-values
-Ceiling
-Wall
-Window
-Door
•Floor coverings
•Window / door schedule
or dimensions
•Ceiling heights
•Areas marked or described –
receiving radiant
•Areas that should not receive radiant
(i.e. garage,
mechanical room)
•Tubing installation method
•Zoning requirements (optional)
•Floor coverings
•Indoor design temperature
•Water temperature requirements or
limitations (related to heat source)
•Zoning requirements (if any)
•Control strategy (i.e. DDC or Viega
Controls)
•Provided heat loss calculations
(BTUh/ft2)
•Scope of materials to be provided
(Tubing size w/O.C. requirements,
controls, etc.)
•Manifold locations indicated
on drawings
Commercial Snow Melt Design
(Bill of Material and Snow
Melt Report)
•Project name
(city and state)
receiving radiant
•Slab thickness
•Coverings (i.e. pavers,
asphalt, etc.)
•Insulation installed below and
thickness
•Water temperature requirements or
limitations (related to heat source)
•Scope of materials and design
(Tubing size w/O.C. requirements,
BTUh/ft2, glycol percentage, etc.
usually found on a schedule)
•Manifold locations indicated
on drawings
Commercial Radiant Design
(Bill of Material and RFH report)
•Project name
(city and state)
receiving radiant
•Tubing installation method
•Slab thickness
•Insulation installed below
and thickness
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Tubing
Viega offers two types of Oxygen Barrier tubing for use in heating and cooling applications:
ViegaPEX Barrier tubing and FostaPEX.
ViegaPEX Barrier tubing
•Is available coiled in sizes 5/16" to 2".
•Is available in straight lengths in sizes
3/4" to 2".
•Can be easily identified by its black
color and red stripe.
•Has a bend radius of 8x O.D.
•Has a UV exposure rate of 90 days.
•An uncoiler is typically used with ViegaPEX
Barrier tubing to keep the PEX tubing
manageable and easy to use.
•A PEX tubing cutter must be used to cut
ViegaPEX Barrier tubing as it makes a
straight, clean, burr-free cut.
•Is for use with heating and cooling
applications at ratings of 73.4°F @ 160
psi, 180°F @ 100 psi and 200°F @ 80 psi.
Viega 1-800-976-9819
•Has four layers: a layer of PEX, a layer of
adhesive, a layer of ethylene vinyl alcohol
(EVOH [which limits oxygen permeation]),
and an outer layer of polyethylene.
•ViegaPEX Barrier tubing is recommended
for use with PEX Press fittings. For
instructions on making a fitting
connection, please see below.
PE
8
EVOH
Adhesive
PEX
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Tubing
1. Square off tubing to proper
length. Uneven, jagged or
irregular cuts will produce
unsatisfactory connections.
2. If using FostaPEX tubing, insert
into prep tool, push and turn
until no resistance is felt. If using
ViegaPEX, continue to step 3.
3. Insert PEX Press fitting with
attached sleeve into tubing and
engage fully.
PureFlow
1/2”
PureFlow
1/2”
4.Ensure full tubing insertion at
view holes in attached press
sleeve. Full insertion means
tubing must be completely
visible in at least two view holes
and partially visible in the one.
5.Position press tool perpendicular
over press sleeve resting it
against the tool locator ring.
Note: The tool locator ring
must be in the factory-installed
position while making a press
to ensure a consistent leakproof
connection. It may be necessary
to rotate the tool locator ring to
avoid interference between the
ring and tool.
6.Close handles, using trigger to
reduce grip span if desired.
PureFlow
1/2”
PureFlow
1/2”
Turn screw for
emergency release
7.Extend handle and continue
ratcheting until automatic
tool release occurs at proper
compression force.
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8.Warning: The connection is
not leakproof when the tool has
been opened by emergency
release. The tool locator ring
must be present to ensure a
proper PEX Press connection.
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Tubing
•After making an in-slab or underground
fitting connection, be sure to protect
the fitting with pipe wrap prior to
concealing the connection. Please
see below.
ViegaPEX Repair Coupling Wrap
1
2
3
5
6
7
4
1. Press fitting as per Viega’s PEX Press Product Instructions.
2. Remove tool locator rings to ensure a proper seal.
3. Leaving protective film in place, measure amount of tape required for sealing fitting by
wrapping fitting completely.
4. Overlap by 1/2" - 1" to ensure proper seal.
5. Cut required length of tape.
6. Carefully wrap fitting with tape, removing protective film as fitting is wrapped.
7. Completely cover fitting. The silicone will bond within two minutes and create a permanent
bond within 24 hours.
NOTE: Concrete pour will not affect sealant’s bonding process.
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Tubing
FostaPEX
•Is available in coils or in straight lengths
in sizes from 1/2" to 1".
•Is available in silver or red.
•Has a bend radius of 8x O.D. or 3.5x
O.D. with a Viega pipe bender.
•Has an extended UV exposure period.
•An uncoiler is typically used with coiled
FostaPEX tubing to keep the tubing
manageable and easy to use.
•A PEX tubing cutter must be used to cut
FostaPEX barrier tubing as it makes a
straight, clean, burr-free cut.
•A FostaPEX Prep Tool must be used for
stripping the aluminum layer before
making a connection (a utility knife
should never be used).
•FostaPEX is for use with heating and
cooling systems at ratings of 73.4°F @
160 psi, 180°F @ 100 psi and 200°F @
80 psi.
•Has four layers: a layer of PEX, followed
by a layer of adhesive, a butt welded
aluminum layer (that blocks oxygen
permeation) and an outer layer of
polyethylene. See below.
concealing the connection. See below.
•FostaPEX is recommended for use
with Viega PEX Press fittings only.
For instructions on making a fitting
connection, please see below.
PE
ALUMINUM
ADHESIVE
PEX
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Tubing
length. Uneven, jagged or
irregular cuts will produce
unsatisfactory connections.
2. If using FostaPEX tubing, insert
into prep tool, push and turn
until no resistance is felt. If using
ViegaPEX, continue to step 3.
3. Insert PEX Press fitting with
attached sleeve into tubing and
engage fully.
PureFlow
1/2”
PureFlow
1/2”
4.Ensure full tubing insertion at
view holes in attached press
sleeve. Full insertion means
tubing must be completely
visible in at least two view holes
and partially visible in the one.
5.Position press tool perpendicular
over press sleeve resting it
against the tool locator ring.
Note: The tool locator ring
must be in the factory-installed
position while making a press
to ensure a consistent leakproof
connection. It may be necessary
to rotate the tool locator ring to
avoid interference between the
ring and tool.
6.Close handles, using trigger to
reduce grip span if desired.
PureFlow
1/2”
PureFlow
1/2”
Turn screw for
emergency release
7.Extend handle and continue
ratcheting until automatic
tool release occurs at proper
compression force.
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8.Warning: The connection is
not leakproof when the tool has
been opened by emergency
release. The tool locator ring
must be present to ensure a
proper PEX Press connection.
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Tubing
concealing the connection. See below.
ViegaPEX Repair Coupling Wrap
1
2
3
5
6
7
4
1. Press fitting as per Viega’s PEX Press Product Instructions.
2. Remove tool locator rings to ensure a proper seal.
3. Leaving protective film in place, measure amount of tape required for sealing fitting by
wrapping fitting completely.
4. Overlap by 1/2" - 1" to ensure proper seal.
5. Cut required length of tape.
6. Carefully wrap fitting with tape, removing protective film as fitting is wrapped.
7. Completely cover fitting. The silicone will bond within two minutes and create a permanent
bond within 24 hours.
NOTE: Concrete pour will not affect sealant’s bonding process.
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Insulation Recommendations
Before getting started refer to the table
below to ensure the proper amount of
insulation is provided. Refer to the table
below for residential installations.
Alaska
Source: U.S. Department of Energy
Energy.gov
Slab or
Slab or Floor
Slab with
Floor over
Wall
in Conditioned
Ground Contact,
Unconditioned Cavity
Climate Zone
Space,
Perimeter
Space,
R-Value,
Horizontal
Insulation
Horizontal
Exterior
Insulation
Insulation
1
R-13
R-5.0, 24-inch
2
depth
3
R-value that
R-19
is 5 times the
4 except
value of the
R-20
Marine
R-15, 24-inch
floor covering’s
depth
5 and
R-value
Marine 4
R-30
6
7-8
R-15, 48-inch
depth
Wall
Cavity
R-Value,
Interior
R-13
R-38
Recommended R-values for residential new construction. It may not be feasible to attain
these values in existing construction. All installations should comply with local code.
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Insulation Recommendations
Application
Slab with
Ground Contact,
Perimeter Insulation by Climate
Zone
CZ 1-2: R-7.5,
12-inch depth
CZ 3: R-10,
24-inch depth
Heating Only
CZ 4-5: R-15,
24-inch depth
CZ 6-8: R-20,
48-inch depth
Suspended Slab
(e.g. between floors)
Horizontal Insulation
R-value that is 5 times
the value of the floor
covering’s R-value. See
Table 3-3 for more detail
on the back loss as a
function of insulation
below the suspended
slab.
Cooling Only
R-5 where
chilled slab abuts
unconditioned space
Same as heating
Heating and Cooling
Same as heating
Same as heating
Minimum recommended R-values for slab insulation of conditioned slabs. Perimeter
insulation may be applied on the interior or exterior of the foundation. Perimeter insulation
should be applied vertically or a combination of vertically and horizontally, when it extends
to at least the depth of the slab. Listed depths are measured from the top of the slab.
• Perimeter insulation may be applied on
the interior or exterior of the foundation.
• Perimeter insulation should be applied
vertically. Please refer to tables for
reference of depth.
• Listed depths are measured from the
top of the slab.
• Viega also recommends installing
Viega 1-800-976-9819
a minimum R-5 horizontal foam
board insulation under the entire
slab for small residential applications
(<2000 ft2).
• The top of this insulation should be cut
at a 45-degree angle and be 4" higher
than a piece of horizontal insulation.
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Manifolds
• The manifold should be
securely mounted and should
remain accessible.
• Care should be taken when locating
a manifold to protect it from damage
(keep away from areas where it would
be exposed to high traffic or extreme
weather conditions).
• Care should be taken when locating
a manifold to protect it from job site
hazards (i.e. manifold box packaging
can be used to protect).
• Soldering Viega’s Copper Manifolds
should be done prior to the connection
of ViegaPEX Barrier or FostaPEX.
Excessive heat can cause the
•
•
•
•
•
PEX Press connections and outlet
connections to leak.
Manifolds should be installed using
isolation (ball valves) valves on the
supply and return headers.
Locate manifolds in an area near the
radiant system it is connected to in
order to minimize leaders (closets,
utility rooms, garage, basement).
Ensure that there is enough space for
manifold, accessories and fittings.
Always use manifold brackets to
secure manifold.
Manifolds can be installed in
any direction.
Insertion depth requires 3.6" when used.
STAINLESS MANIFOLD
SHUT-OFF/BALANCING/FLOW METERS
Mount manifold using mounting brackets.
Manifold should remain accessible.
SVC Circuit Connections
Note: Insert SVC adapter into seat (manifold
or other fitting) and tighten compression nut
with wrench. Re-tighten compression nut slightly
after 30 minutes using Viega SVC Fitting Wrench.
Plastic Bend Supports
Ensure ViegaPEX is protected
when passing through a thermal
mass. Maintain pressure until
system is commissioned.
Slab
ProRadiant Manifold
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Stainless Manifold Considerations
• Orientation of the manual air bleeder/
purge valve on the Stainless Manifolds
can be flipped.
• Stainless Manifold end caps are 1" NPT
and removable for extended and flowthrough applications.
• When extending the Stainless Manifold,
use thread paste and Teflon tape on the
1" NPT manifold connection.
• Make sure that EPDM sealing element
is placed in union connection for
proper seal.
• Do NOT use thread paste or Teflon
tape on the union connection for
Stainless Manifolds.
• Use only Viega’s manifold adapters to
connect to manifold.
Stainless Manifold Dimensions
11
12
2
3
4
5
6
7
8
9
10
outlet outlet outlet outlet outlet outlet outlet outlet outlet outlet outlet
Width with no
10.2"
accessories
10.2"
12.2" 14.1"
16.1"
18.1"
20.0" 22.0"
24.0"
25.9" 27.9"
Width with
ball valve
14.95" 14.95" 16.95" 18.85" 20.85" 22.85" 24.75" 26.75" 28.75" 30.65" 32.62"
and adapter
fittings
Width with
ball valve
and adapter 16.95" 16.95" 18.95" 20.85" 22.85" 24.85" 26.75" 28.75" 30.75" 32.62" 34.65"
fittings for
flow through
Depth
3.6"
Depth with
ball valve
handle
4.85"
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Stainless Manifold Considerations
1. Remove air bleeder.
2. Remove purge valve.
3. Flip manifold stock over.
4. Attach purge valve.
5. Attach
Attachair
airbleeder
bleeder.
Some applications will require the
tubing to be brought to the manifold
from above. In this type of situation,
the purge valve and air bleeder will
need to be switched along with
flipping the manifold stock over.
SVC Press Adapter 3/8" - 3/4"
length. Slide compressions nut
up tubing and clip brass ferrule
over tubing.
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2. Slide tubing over end of
SVC adapter, pushing it on
fully until tubing is flush with
shoulder of fitting.
18
3. Insert SVC adapter into the
seat of the manifold and tighten
the compression nut with a
wrench. Retighten nut slightly
after 30 mins.
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Copper Manifold Considerations
When using Viega ProPress fittings with a copper manifold follow the instructions below.
Product Instructions
For Types K, L and M Hard Copper Tubing in 1/2" to 2" and Soft Copper Tubing in
1/2" to 1-1/4". This Product Contains Zero Lead
Read and understand all instructions for installing ProPress fittings. Failure to follow all
instructions may result in extensive property damage, serious injury or death.
1
2
3
4
6
6a
7
8
5
9
ProPress Insertion Depth Chart
Tube Size
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
Insertion Depth
3/4"
7/8"
7/8"
1"
1-7/16"
1-9/16"
1. Cut copper tubing at right angles using displacement-type cutter or fine-toothed steel saw.
2.Remove burr from inside and outside of tubing to prevent cutting sealing element.
3. Check seal for correct fit. Do not use oils or lubricants. Use only ProPress Shiny Black EPDM or Dull Black FKM
Sealing Elements.
4. Mark proper insertion depth as indicated by the ProPress Insertion Depth Chart. Improper insertion depth will result
in improper seal.
5. While turning slightly, slide press fitting onto tubing to the marked depth. Note: End of tubing must contact stop.
6. Insert appropriate Viega jaw into the pressing tool and push in, holding pin until it locks in place.
7. Open the jaw and place at right angles on the fitting. Visually check insertion depth using mark on tubing.
8.Start pressing process and hold the trigger until the jaw has engaged the fitting.
9. After pressing, the jaw can be opened again.
10. For applications requiring ProPress with FKM sealing elements, remove the factory-installed EPDM sealing element
and replace with FKM sealing element.
Pressure Testing: Pressure testing is to be carried out in accordance with local codes.
ProPress includes the Smart Connect (SC) Feature providing quick and easy identification of
unpressed connections during the pressure testing process. Unpressed connections are
located by pressurizing the system with air or water. When testing with air the pressure
range is 1/2 PSI to 85 PSI maximum. When testing with water the pressure range is 15 PSI
to 85 PSI maximum. The SC Feature is an integral part of the design of the fitting, assuring
leakage of liquids and/or gases from inside the system past the sealing element of an
unpressed connection. The SC Feature is removed during the pressing process, creating
a leakproof, permanent connection.
*"Zero Lead" identifies Viega products meeting the lead-free requirements of California and Vermont law,
effective January 1, 2010, as tested and listed against NSF- 61, Annex G
Viega 1-800-976-9819
19
www.viega.com
Soldering Instructions
• Cut copper tubing cleanly with
tube cutter.
• Ream and deburr cut copper tubing.
• Clean the inside of the Copper End
Cap and copper tubing (fitting brush /
emery cloth). The copper should shine.
• Brush an even layer of flux over the
copper tubing and Copper End Cap.
• Push the joint together until the
copper tube seats full depth. Wipe off
excess flux.
• Heat the joint with a torch, moving the
flame back and forth to heat evenly.
Hold the solder against the joint on the
side opposite the flame until it melts
and flows into the joint. Touch the
solder 360° around the tubing. The
joint should appear full on all sides.
The solder hardens as it cools.
• Avoid overfeeding the joint with solder.
The amount of solder required is
equivalent to the diameter of copper
tubing being soldered.
Copper Manifold Considerations
Header Stock
Copper Manifold Shut-off Balancing
Stock
Code
Dimensions
Length
with end
cap and
ball
valve
17104
2" CM x 5/8" Pex Press - 12
51.25"
17105
51.25"
39"
4.70"
3.0"
3.0"
17123
1-1/2" CM x 5/8" Pex Press - 12
50.0"
39"
5.51"
3.0"
3.0"
17124
1-1/2" CM x 3/4" Pex Press - 12
50.0"
39"
5.52"
3.0"
3.0"
A
B
C
D
39"
5.74"
3.0"
3.0"
Height
Depth
17.7"
7.2"
Height
Depth
17.7"
7.2"
Copper Manifold with Shutoff Valves
Stock
Code
Dimensions
Length
with end
cap and
ball
valve
17102
51.25"
17103
51.25"
39"
4.70"
3.0"
3.0"
17121
1-1/2" CM x 5/8" Pex Press - 12
50.0"
39"
4.45"
3.0"
3.0"
17122
1-1/2" CM x 3/4" Pex Press - 12
50.0"
39"
4.46"
3.0"
3.0"
C
A
B
C
D
39"
5.69"
3.0"
3.0"
D
Viega 1-800-976-9819
20
www.viega.com
Combining or Cutting Copper Header Stock
1-1/2" Copper Manifolds w/ Brackets
Manifold
Configurations
No Accessories
Width (in)
# of Circuits
4
6
8
10
12
18
24
30
36
22.2
28.2
34.2
40.2
26.4
32.4
38.4
44.4
27.8
33.8
39.8
25.8
w/ ECVD
16.2
ProPress Ball Valve
20.4
and ECVD
ProPress Ball Valve,
ECVD,
21.8
Copper By PEX
Press (87580)
Height
Depth
17.7
7.2
12
1-1/2" Copper Header Stock Manifolds w/ Brackets
Manifold
Configurations
No Accessories
Width (in)
# of Circuits
14
16
42
w/ ECVD
46.2
ProPress Ball Valve
50.4
and ECVD
ProPress Ball Valve,
ECVD,
51.8
Copper By PEX
Press (87580)
Height
Depth
17.7
7.2
18
48
54
52.2
58.2
56.4
62.4
57.8
63.8
2" Copper Manifolds w/ Brackets
Manifold
Configurations
No Accessories
Width (in)
Estimated
Depth (in)
Height (in)
# of Circuits
4
12
w/ ECVD
16.2
ProPress Ball Valve
21.4
and ECVD
6
18
8
24
10
30
12
36
22.2
28.2
34.2
40.2
27.4
33.4
39.4
45.4
17.8
7.7
2" Copper Manifolds w/ Brackets
Manifold
Configurations
No Accessories
Width (in)
# of Circuits
14
16
18
42
48
54
46.2
52.2
58.2
ProPress Ball Valve
51.4
and ECVD
57.4
63.4
w/ ECVD
Estimated
Height (in)
Depth (in)
17.8
7.7
**ECVD = end cap vent drain
Viega 1-800-976-9819
21
www.viega.com
Concrete Installation
Site Prep
• Compact the sub-base where necessary.
• Install vapor barrier if specified. Viega
recommends installing a vapor barrier
on all heating and cooling installations.
• Final grade should be accurately
leveled and covered with a polyethylene
film (6 mil. minimum).
• Install insulation if specified. Please refer
to local code or this installation guide.
• Install wire mesh if specified. Though
wire mesh is not required for Climate
Mat installations, it can be helpful for
securing Climate Mat leaders
near manifolds.
• Where specified, re-bar or other slab
enforcement may be installed prior to or
after the installation of Climate Mat.
• Depending on the slab design and
construction schedule it is generally
easier to sequence the installation of
slab reinforcement after the Climate Mat
is installed.
• Remove any unintentional obstructions
and construction waste.
• Make sure all tools and materials are on
site and arranged neatly.
• Use tubing cutters for even, square cuts.
Use a ratcheting cutter for FostaPEX.
• If a PEX Press coupling will be installed
and encased in a thermal mass, it must
be completely covered with Viega’s
coupling repair tape.
• Cover tubing with a protection sleeve
when it is close to sharp objects.
• Protect tubing with proper guards where
nailing is likely.
Planning and Installation
• Before starting the installation, ensure
that the following tools and materials are
on site to help the process go smoothly:
• Tubing cutters and ViegaPEX
Press Tool
• ViegaPEX Press couplings
• Repair tape to wrap repair PEX Press
couplings in-slab
• Fasteners for securing leaders
near manifolds
• Tools for installing fasteners
• Air compressor for pressure testing
• Bend support to support slab
penetration sleeve
• Run supply tubing into high heat loss
areas first (i.e. closest to exterior walls,
windows, sliders, etc.) and then into the
interior of the room.
Run supply tubing from red manifold
valves into high heat loss areas first
(i.e. closest to exterior walls, windows,
sliders, etc.) and then into the interior
of the room.
Higher water temperatures at the
outside wall will provide more BTU
output where it is needed.
Continue the circuits, laying them out in
the same direction toward
the interior of the room.
Viega 1-800-976-9819
22
www.viega.com
Minimize penetration of
expansion joints.
• Any tubing that passes through
concrete expansion joints must be
protected with a protection sleeve
for a minimum of 6" (15cm) on
both sides of the joint.
• Keep tubing at least 4" (10cm) from
the edge of slabs, walls or other
permanent objects.
• Label tubing and record actual circuit
lengths as it is installed.
• If there are areas with high pipe
concentrations, insulate pipes if the
thickness of the thermal mass can
accommodate the buildup.
• The slab should not be heated until
curing is complete.
• Start warmup after concrete has
reached its final set (curing complete).
• Set supply water temperature to 77°F
for the first three days.
• Increase supply water temperature to
the set point in gradual increments for
the next four days (maximum of a 50°F
increase in a period of 24 hours).
• Slab warmup should follow
the concrete manufacturer‘s
recommendations.
• Minimize penetration of expansion
joints in concrete.
Incorrect
Correct
Viega 1-800-976-9819
23
www.viega.com
Section through fibrous expansion joint (typical)
R-5 Insulation:
Refer to the design or installation
manual for minimum insulation required.
(Ensure compression rating is suitable
for application.)
ViegaPEX Tubing:
minimum 3/4" height of
thin-slab over PEX Tubing.
Section through metal expansion joint (typical)
R-5 Insulation:
manual for minimum insulation
required. (Ensure compression rating is
suitable for application.)
ViegaPEX Tubing:
Viega 1-800-976-9819
24
www.viega.com
Concrete has very little flexibility and will almost always crack. Jointing is one of
the best ways to control the inevitable. Joint location, which influences the radiant
heating piping design layout, is generally specified by the engineer.
Typical Joint Locations
• Edge of thermal mass
• Side length 18'
• Sides less than 1:2 ratio
• Doorways
• Bays in L-shaped rooms
Isolation Joints
When installed against the concrete
foundation at the perimeter of the slab,
the joint material prevents the slab from
bonding to the walls. It also allows the
slab to expand without cracking during
temperature fluctuations.
Control joints force cracks to follow the
path of the joint. Without them, random
cracks will ruin the appearance and
sometimes the usefulness of the slab.
Control Joints
Slabs With Isolation And Control Joints
1/2" isolation joint
Control
Joints
Figure 3.1h
Note:
Building or masonry supply
companies sell 1/2" thick
isolation joint material that
is precut to the thickness
of the slab.
Isolation Joints
at pier and
perimeter
Viega 1-800-976-9819
25
www.viega.com
• The return bend can have a keyhole
shape to minimize the tubing spacing
without kinking the tubing.
• Fasten tubing every two feet and
three times at each U-Turn to hold
down any return bends or other
shapes created.
• Avoid crossing tubing in slab, unless
minimum 3/4" concrete thickness
is met.
• Use bend supports in concrete. A bend
support will help reduce possible
damage to the tubing due to the
different expansion and contraction
rates of different materials. Fasten
tubing every two feet and three times
at each U-Turn to hold down any
return bends or other shapes created.
It’s helpful to mark out portions
of each circuit directly on the
insulation using spray paint.
The return bend can have a
keyhole shape to minimize
the tube spacing without
kinking the tubing.
Use bend supports in concrete.
A bend support will help reduce
possible damage to the tubing
due to the different expansion
and contraction rates of
different materials.
Viega 1-800-976-9819
26
www.viega.com
Snap Panel
• When installing Snap Panel in outdoor
conditions, add temporary weight
(re-bar, lumber) to prevent wind uplift.
• Begin Snap Panel installation against
longest straight wall.
• Leave 1/2" - 1" along outer walls to
allow for expansion.
• Orient small exterior snap-over tabs
along outer edge.
• Drop additional sheets directly over
exposed snap-over tabs and walk
into place.
• Consult with local authority having
jurisdiction to determine whether
Snap Panel acts as an acceptable
vapor barrier.
• Quarter turn sheets as needed to
avoid unnecessary cuts.
• Make oversize cuts around plumbing
pipes and electrical risers to allow for
adjustment. Use cut sheets as infill to
avoid waste.
• Use staples to secure Snap Panel
over wood. Use Snap Panel Buttons
to secure product over foam
insulation board.
• Before starting the installation,
ensure that the following tools and
materials are on site to help the
process go smoothly:
Press Tool
• Repair tape to wrap repair PEX
Press couplings in-slab
penetration sleeve
Layout Planning
To avoid waste and to have equal circuit
lengths, a carefully planned layout should
be done. First, determine where the
manifold should be installed. Remember
the manifold must be accessible. When
calculating the number of circuits, always
round up. Keep the length of each circuit
in the same room equal.
Maximum Circuit Length
Tubing
≤ 25 Btu’s / (hr x ft2)
3/8"
300'
≥ 25 Btu’s / (hr x ft2 )
250'
1/2"
400'
350'
5/8"
500'
450'
3/4"
800'
750'
Calculating number of circuits:
Total amount of tubing ÷ maximum circuit length = # of circuits
Viega 1-800-976-9819
27
www.viega.com
Circuit layout patterns for hydronic radiant floor heating
Exterior Wall
One Wall Serpentine
Room has one exterior wall
Two Wall Serpentine
Room has two exterior walls
Exterior Wall
Exterior Wall
Exterior Wall
Exterior Wall
Exterior Wall
Three Wall Serpentine
Room has three exterior walls
Viega 1-800-976-9819
Counter Flow
Room has no exterior walls
28
www.viega.com
Concrete Installations Details
Slab-on-Grade: Plastic Zip Ties
4" Concrete Slab: Minimum 3/4" height
of concrete over ViegaPEX Tubing.
Tube Spacing (per design)
R-5 Edge Insulation:
Refer to design or installation
manual for minimum
insulation required.
ViegaPEX Tubing:
Keep 4" from wall
Wire Mesh
Gravel
Plastic Zip Tie:
Fasten tubing every 2 feet and
3 times at each U-Turn to hold
shapes created.
Compact Subgrade
R-5 Insulation:
Refer to the design or installation manual
for minimum insulation required. (Ensure
compression rating is suitable for application).
Polyethylene Film: 6 mil (min.)
Slab-on-Grade: Foam Staples
4" Concrete Slab: Minimum 3/4" hieght
Refer to design or installation
manual for minimum
ViegaPEX Tubing:
Keep 4" from wall
Gravel
Staples for Foam Board:
shapes created.
Compact Subgrade
R-5 Insulation:
compression rating is suitable for application).
Polyethylene Film: 6 mil. (min.)
Viega 1-800-976-9819
29
www.viega.com
Snap Panel Installations Details
Slab-on-Grade: Snap Panel
4" Concrete Slab: Minimum 3/4" height
Refer to design or installation manual for
minimum insulation required.
ViegaPEX Tubing:
Keep 4" from wall
Snap Panel:
Check with local
code to see if
Snap Panel is
an acceptable
vapor barrier
Gravel
Compact Subgrade
R-5 Insulation:
compression rating is suitable for application.)
Polyethylene Film: 6 mil. (min.)
Viega 1-800-976-9819
30
www.viega.com
Climate Mat
Site Prep
Off-loading and Storing the Mats
• Unload the mats with care and ensure
that all tubing and fittings are stored
in a flat, dry and well-ventilated
location that is protected from UV
exposure. UV exposure must never
exceed 90 days.
• All Climate Mat assemblies are
pressure tested prior to shipment
and remain under a static internal
pressure of ~20 psig during shipping
(actual gauge pressure will vary with
site elevation).
• Upon receipt of the Climate Mat, inspect
each assembly for damage and verify
pressure retention. Do not install any
defective or damaged products.
Layout and Staging
that the following tools and materials
are on site to help the process
go smoothly:
Press Tool
• Extra mounting strips and clips
couplings in-slab
• Fasteners for securing clip strips
and leaders to sub-base, wire mesh
or re-bar
• Fasteners for securing Climate Mat
leaders near manifolds
• Air compressor for adding extra
pressure to Climate Mats if necessary
penetration sleeve
• Each Climate Mat delivery is provided
with a design layout that details the
location of each manifold and its
corresponding Climate Mats.
• Each Climate Mat is shipped with a
label that provides the specifications for
that mat.
20
124 Feet
Mat 2
M-1
Viega 1-800-976-9819
31
www.viega.com
Climate Mat
• Prior to placing the Climate Mats,
measure and mark the location on the
sub-base of using the first spacer strip
for each Climate Mat. This location
can be determined from the design
layout provided by Viega.
• Also, to keep the Climate Mats
straight and square during
installation, the installer may find
it useful to mark the sub-base to
indicate the position for the outer
tube of each Climate Mat.
• Using the layout provided by Viega, identify the designated manifold locations and the
Climate Mats that correspond with these manifolds.
Distance
Reference
CM
of 1st
CM
Stock
Leader
Spacer
Length
CM #
Manifold
Code
Length
Strip to
[ft]
#
[10,20,30]
Manifold
Wall
Description
Dimension
Climate Mat,
6 ft
1/2" ViegaPEX
Barrier, 9" O.C.,
4 Loops / 4 Circuits
18151
132
30
1
5
1
Climate Mat,
6 ft
1/2" ViegaPEX
Barrier, 9" O.C.,
18151
132
30
2
5
1
Climate Mat,
6 ft
1/2" ViegaPEX
Barrier, 9" O.C.,
18151
132
30
3
5
2
Climate Mat,
6 ft
1/2" ViegaPEX
Barrier, 9" O.C.,
18151
132
30
4
5
2
Viega 1-800-976-9819
32
www.viega.com
Climate Mat
Fastening the Climate Mat Installation
• Determine the distance from the
control line indicated on the design
layout to the first spacer strip location.
Secure the first spacer strip to the
sub-base or wire mesh near the
manifold location.
• Fully unroll the Climate Mat and pull it
hand-tight to ensure that it is straight
and square. Attach the last spacer strip
to the sub-base or wire mesh, and
then go back and anchor each spacer
strip with at least two fasteners.
• Fastening methods will vary
depending on the sub-base. Fasten
leaders at two-foot intervals between
the first spacer strip and the manifold.
• If attaching leaders to wire mesh
or re-bar, use zip ties. For other
applications, use foam staples or
other appropriate fasteners.
• To move the Climate Mat off the pallet,
two installers can carry and place
the rolled mat into position. During
placement, avoid dragging or rolling
the Climate Mat across long distances.
• When it’s time for installation, Climate
Mats will be unrolled away from the
manifolds, with the Climate Mat’s
temporary headers placed near the
manifold location.
• Heavy equipment must not be
operated on top of the tubing.
• Leave at least one foot of clearance
between the concrete pour and the
edge of the Climate Mat to ensure
that you can easily roll out subsequent
sections without interference from
concrete overpour.
• Once the heavy concrete pour and
screed equipment has moved a
sufficient distance, subsequent Climate
Mats may be unrolled and secured.
• If a concrete pump, boom and hose
are used to install the concrete, you
can generally avoid heavy equipment
on the substrate. In this case, it may
be possible to roll and anchor all of
the Climate Mats prior to the pour.
Viega 1-800-976-9819
33
www.viega.com
Climate Mat
Continued from previous page.
• When anchoring leaders back to the
manifold location, maintain uniform
spacing of the tubing as much as
possible. Tie off the temporary header
so that it’s not in the way when the slab
is poured.
• Fastening to a compacted sub-base use
at least two 6" landscaping spikes to
anchor each spacer strip.
• Fastening to re-bar or wire mesh: Climate
Mat can also be secured to wire mesh or
re-bar with zip ties.
• Fastening to an existing slab: Climate
Mat may be fastened to a sub-slab, with
appropriate concrete fasteners, for an
overpour application.
• Fastening to foam insulation: Use at least
two foam staples to anchor each spacer
strip. Staple tubing close to each
spacer strip.
• Getting around obstacles: Where
necessary, remove the tubing from the
spacer strip to spread the tubing around
obstacles. If this does not lend sufficient
clearance, spacer strip(s) may be cut or
removed to give you more flexibility.
• For the penetration of leaders at manifold
locations, slide each leader’s factoryinstalled sleeve until it is in position.
Viega 1-800-976-9819
34
www.viega.com
Climate Mat Concrete Installations Details
Climate Mat on Grade
4" Concrete Slab:
Minimum 3/4" height of
concrete over ViegaPEX
Tubing.
Refer to the design or
installation manual for
minimum insulation
required.
Gravel
ViegaPEX Tubing:
Keep 4" from wall
Compact Subgrade
Climate Mat:
Secure with fastener best suited
for application.
Climate Mat on Grade with Insulation
4" Concrete Slab:
concrete over ViegaPEX
Tubing.
minimum insulation
required.
Gravel
ViegaPEX Tubing:
Keep 4" from wall
Climate Mat:
Secure with fastener best suited
for application.
Compact Subgrade
Polyethylene Film: 6 mil (min.)
Viega 1-800-976-9819
R-5 Insulation:
35
www.viega.com
Suspended Slabs and Thin Slab
Site Prep
• Ensure subfloor is structurally sound
and is designed to support the
added load.
• Install polyethylene sheet or treat
surface of subfloor. Coordinate with
thermal mass installer.
• Install insulation as specified. Please
refer to local code and this
installation guide.
• Note estimated back losses below for
slabs that have minimal insulation.
Floor Covering R-Value
Insulation
Below
0.25 0.5 1 1.5 2 2.5
Suspended
Suspended Slab, Back Loss
Slab
in Heating
(R-Value)
0
2.5
5
7.5
10
44%
22%
14%
10%
8%
50%
25%
16%
13%
10%
58% 64% 69%
32% 38% 42%
22% 27% 30%
17% 21% 24%
14% 17% 20%
72%
48%
34%
28%
22%
Suspended slab back losses are
percent of total heat transfer from
panel, assuming a mean heating
water temperature of 120°F, and an
air temperature above and below the
suspended slab of 68°F.
• Remove any unintentional
obstructions and construction waste.
• Make sure all tools and materials are
on site and arranged neatly.
• Use tubing cutters for even, square
cuts. Use a ratcheting cutter
for FostaPEX.
• If a bronze PEX Press coupling will be
installed and encased in a thermal
Viega 1-800-976-9819
36
mass, it must be completely covered
with Viega’s coupling repair tape.
• Cover tubing with a protection sleeve
• Protect tubing with proper guards
where nailing is likely.
that the following tools and materials
are on site to help the process go
smoothly:
Press Tool
• Extra mounting strips and clips
• Repair tape to wrap repair PEX
Press couplings in-slab
• Fasteners for securing clip strips
and leaders to sub-base, wire
mesh or re-bar
near manifolds
penetration sleeve
• Minimum of 3/4" concrete over tubing
• Must coordinate with tightening
tendons (cables) for post tension slabs
• Tightening tendons should be
sheathed and not in direct contact
with tubing.
• Run supply tubing into high heat loss
areas first (i.e. closest to exterior
walls, windows, sliders, etc.) and
then into the interior of the room. The
higher water temperatures at the
outside wall will provide higher output
where it is needed.
www.viega.com
Run supply tubing from red
manifold valves into high heat
loss areas first (i.e. closest
to exterior walls, windows,
sliders, etc.) and then into the
interior of the room.
Higher water temperatures at
the outside wall will provide
more BTU output where
it is needed.
Continue the circuits, laying
them out in the same direction
toward the interior of the room.
permanent objects.
• Minimize penetration of expansion
joints in concrete applications.
Incorrect
Correct
Minimize Penetration of Joints
Viega 1-800-976-9819
37
www.viega.com
• Any tubing that passes through concrete expansion joints must be protected with
a protection sleeve for a minimum of 6" (15cm) on both sides of the joint. Crosssections of sleeving at expansion joints are provided in the illustrations below.
R-5 Insulation:
ViegaPEX Tubing:
Viega 1-800-976-9819
38
www.viega.com
• The return bend can have a keyhole shape to minimize the tubing spacing without
kinking the tubing.
• Fasten tubing every two feet and three times at each U-Turn to hold down any return
bends or other shapes created.
• Do not cross tubing in a slab.
• Use bend supports in concrete. A bend support will help reduce possible damage to
the tubing due to the different expansion and contraction rates of different materials.
• Calculate the net
heated area.
• Use charts to make an
initial materials list for the
net area to be heated.
NOTE: Estimate does
not include controls.
Concrete System Tubing Estimator
Net.
Estimated
Heated Multiplier
Amount
Area
ViegaPEX Barrier /
FostaPEX Tubing*
6" Spacing
2.2
9" Spacing
1.5
12" Spacing
1.1
Sizes 1/2", 5/8", 3/4"
Various Fasteners
Available
• Plastic Clip for Foam Board
• Wire Mesh Clip
• Zip Ties
• Wire Staples
• Foam Staples
NOTE: Fasten tubing
every two feet and three
times at each U-Turn bend.
Concrete System Material List Estimator
Net.
Estimated
Fasteners
Heated Multiplier
Amount
Area
6" Spacing
1.1
9" Spacing
.75
12" Spacing
.55
Snap Panel Material List Estimator
Net.
Estimated
Snap Panel
Heated Multiplier
Amount
Area
Fasteners Available
Snap Panel
Snap Panel
.08
6" Spacing
2.2
9" Spacing
1.5
12" Spacing
1.1
1/2" Tube Only
Viega 1-800-976-9819
39
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Suspended Concrete Installations and Thin Slab Details
Concrete on Metal Decking
4" Concrete Slab: Minimum
3/4" height of concrete over
ViegaPEX Tubing.
Tube Spacing
(per design)
Wire Mesh
ViegaPEX
Tubing: Keep 4"
from wall
Metal Decking
R-10 Insulation:
manual for minimum insulation
required.
Plastic Zip Tie:
Fasten tubing every 2 feet and 3 times at
each U-Turn to hold down any return bends
or other shapes created.
Concrete on Pre-stressed Decking
4" Concrete Slab: Minimum
3/4" height of concrete over
ViegaPEX Tubing.
Tube Spacing
(per design
minimum insulation
required.
ViegaPEX
Tubing:
Keep 4"
from wall
Wire Mesh
Pre-Stressed Concrete
(Suspended, e.g. between
floors)
Viega 1-800-976-9819
R-5 Insulation:
(Ensure compression rating is
suitable for application).
40
Plastic Zip Tie:
Fasten tubing every
2 feet and 3 times at
each U-Turn to hold
down any return
bends or other
shapes created.
www.viega.com
Concrete Thin Slab with Tile
Tiles
1-1/2" Concrete Slab:
Minimum 3/4" height of thin-slab over
ViegaPEX Tubing.
Tube Spacing
(per design)
Crack Isolation
Membrane (optional)
ViegaPEX Tubing:
Keep 4" from wall
shapes created.
Sealant for Gypsum or
Polyethylene Film: 6
mil. (min.) for concrete
Floor Joist
3/4" Plywood Subfloor:
The thickness of the plywood subfloor should always be
installed in accordance with the local building code.
R-19 Insulation:
Concrete Thin Slab with Carpet
Carpet
Carpet Pad
(suitable for radiant floor heating)
thin-slab over ViegaPEX
Tubing.
ViegaPEX Tubing:
Keep 4" from wall
shapes created.
Polyethylene Film: 6 mil.
(min.) for concrete
Floor Joist
R-19 Insulation:
Viega 1-800-976-9819
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Suspended Concrete Installations and Thin Slab Details
Concrete Thin Slab with Linoleum
Linoleum or Vinyl Floor
Tube Spacing
(per design)
ViegaPEX Tubing.
ViegaPEX Tubing:
Keep 4" from wall
(min.) for concrete
shapes created.
Floor Joist
R-19 Insulation:
Viega 1-800-976-9819
42
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Concrete Thin Slab with Sleepers and Hardwood
Hardwood Flooring
ViegaPEX Tubing.
Tube Spacing
(per design)
Sleeper
ViegaPEX
Tubing: Keep
4" from wall
Floor Joist
The thickness of the plywood
subfloor should always be
installed in accordance with the
local building code.
Viega 1-800-976-9819
shapes created.
(min.) for concrete
43
R-19 Insulation:
www.viega.com
Climate Panel
Site Prep
• Start by making sure your work area is
dry, level and clean.
• Climate Panel may be installed directly on
top of your subfloor or on top of concrete.
• When installing on top of concrete please
plan on installing a vapor barrier using 6
mil poly plastic sheeting and a layer of
3/4" plywood. The Climate panel would
then attach to the 3/4" plywood.
• When installing a floating floor on top
of concrete have an extra layer of foam
below the Climate Panel.
site and arranged neatly for use.
Tools
• Tape measure
• Pencil
• Chalk line
• Pneumatic pex hammer / mallet
• Caulking gun
• Chopsaw / circular saw
• Screw gun / staple gun
• PEX tubing cutter
• PEX uncoiler
• To determine the direction of your
Climate Panel, consider joist direction
and finished flooring.
• Because most rooms are not perfectly
square, lines need to be chalked to
ensure proper layout of the panels.
• Begin by chalking a line along the wall
where the first row of panels will be laid
out. The line should be 7-1/2" from
the wall.
• Next, chalk lines along the walls where
the U-Turn strips will be laid out. One
way to ensure that the chalk lines are
perpendicular to each other is to use
the right triangle rule, a2 + b2 = c2,
also known as the 3-4-5 triangle.
• Begin laying out the panels along the
chalked lines.
• Use single panels to ensure they are
lined up. This row will act as a guide
for the Assembled Climate Panels or
additional Climate Panels.
• Fasten panels with five screws on each
side (10 screws per panel), or use1/2"
x 1-1/4" crown staples. (See drawing
at left.)
Viega 1-800-976-9819
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Climate Panel
• Always stagger the Climate Panel joints
for both structural and alignment purposes.
• To begin the ACP installation, cut an
unopened bundle in half to create
a straight edge. Be sure the ACP is
completely flush with the first row already
fastened down. After the first row of ACPs
has been laid out, begin to stagger the
seams. (See drawing at left.)
• Install the Climate Panels one circuit
at a time.
• To minimize any tubing damage use a
utility knife or chisel to nip any corners or
joints where the panels didn’t line
up perfectly.
When installing
the U-Turn strips,
keep an eye on
the tubing layout
• After Climate panels and U-Turns are
installed, vacuum the grooves thoroughly.
(See drawing at left.)
• Cut panels and U-Turns where necessary
to get around obstacles.
When installing
the U-Turn strips,
keep an eye on
the tubing layout
• If your Climate Panel system is supplied
from a manifold located below, drill supply
and return holes to receive a plastic elbow
sleeve to protect the tubing for subfloor
penetrations. (See drawing at left.)
When installing
U-Turn
strips,
Installation ofthe
U-Turn
Strips
• Install the Climate Panels then the U-Turns.
keep an eye on
the U-Turn
tubing strips
layout
You can also cut
into sections and customize
the use of the strips
• When laying down U-Turn strips, be sure
to first put down the aluminum sheets
provided in each U-Turn bundle.
• After the aluminum is laid out, align
U-Turns with the correct tracks
and fasten.
U-Turn Strips
ut U-Turn strips
and customize
of the strips
Viega 1-800-976-9819
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Climate Panel - Tube Installation
Tube Installation
After Climate Panels and U-Turn strips are
installed, vacuum groove out thoroughly just
prior to installing tubing.
Installers: Since silicone becomes tacky
in 8 to 10 minutes, it is recommended that
silicone is applied only to a section that
can be covered in this amount of time.
If trapped in the groove, any debris, screws,
nails, etc., will damage the tubing and keep
it from laying flush with the tip surface. When
penetrating the floor, use a plastic elbow sleeve:
1. Figure the leader length of the supply line
to the manifold area.
2. Feed leader length through plastic elbow
sleeve (be careful not to scratch the tubing
in the process).
Note: Feed the tubing through an unsecured
plastic elbow sleeve.
3. Feed the leader length through the floor.
4. Secure the fastener clip to the floor.
Directly after the Groove Tube silicone
installation (before it cures), walk tubing off a
decoiler into the Climate Panel groove.
• Silicone and tubing installation must go
hand-in-hand, i.e. do not let silicone set up
before tubing is inserted.
Note: It is imperative to make sure tubing
is completely in its tracks before silicone
hardens. Tubing may have to be hammered
in using a rubber mallet or a pneumatic softtipped palm hammer.
Run supply tubing from manifold supply
valves into high heat loss areas first (i.e.
closest to exterior walls, windows, sliders,
etc.), and then into the interior of the room.
Directly before installing tubing into the Climate
Panels, run a 3/16" to 1/4" bead of Viega’s
Groove Tube silicone into the panel grooves.
• Guaranteed not to damage PEX tubing or
aluminum, the Groove Tube is strongly
recommended.
• Do not use anything but 100% silicone
rated for 180°F!
• Do not use caulking or any other type of
sealant or adhesive!
Viega 1-800-976-9819
This will provide more BTU output where it
is needed due to higher water temperatures.
Continue the circuits, laying them out in the
same direction toward the interior of
the room.
46
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Climate Panel - Tube Installation
LOWER
HIGHER
outside wall
Viega 1-800-976-9819
47
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Climate Panel - Installation Methods
Section through Climate Panel installation above
subfloor with hardwood finish floor
Hardwood flooring
Climate Panel:
Screw or staple Climate Panels to
the subfloor with 10 fasteners per
panel. Climate Panel should run
perpendicular to the direction of the
hardwood floor.
The thickness of the
plywood subfloor should
always be installed in
accordance with the local
building code.
R-19 Insulation:
Refer to the design
or installation
manual for minimum
Floor Joist
Section through Climate Panel installation
above subfloor with tiles
Tiles
Crack Isolation Membrane (Optional)
Climate Panel:
Screw or staple Climate
Panels to the subfloor
with 10 fasteners per
panel. Climate Panel
should run perpendicular
to the direction of the
hardwood floor.
Viega 1-800-976-9819
1/4" - 3/8" Concrete Fiberboard:
Glue and screw concrete fiberboard
to Climate Panels. (Refer to crack
isolation membrane manufacturer
for additional requirements.)
R-19 Insulation:
Floor Joist
48
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subfloor with carpet
Carpet
Climate Panel:
Panels to the subfloor with
10 fasteners per panel.
Carpet Pad:
(Suitable for radiant floor
heating) For minimum
height buildup, install
carpet and pad directly over
Climate Panels.
Floor Joist
R-19 Insulation:
Refer to the design
or installation
manual for minimum
subfloor with carpet and finished plywood
Carpet
Carpet Pad:
(Suitable for radiant floor heating)
If height allows, a 1/4" - 3/8" finish plywood
cover sheet can be installed over the
Climate Panel system.
Climate Panel:
Viega 1-800-976-9819
R-19 Insulation:
Refer to the design
or installation
manual for minimum
Floor Joist
49
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subfloor with linoleum or vinyl finish floor
If height allows, a 1/4" - 3/8" finish plywood
cover sheet can be installed over the
Climate Panel system.
Linoleum or Vinyl Floor
Climate Panel:
R-19 Insulation:
Refer to the design
or installation
manual for minimum
insulation required
Floor Joist
Section through Climate Panel installation on existing
slab with plywood
Climate Panel:
Screw or staple Climate Panels to the
subfloor with 10 fasteners per panel.
Concrete Slab:
Slab must be level prior to
Climate Panel installation
3/4" Plywood:
Stagger and fasten
plywood to slab
Compact Subgrade
Viega 1-800-976-9819
Polyethylene Film:
Cover level slab with 6 mil. (min.)
polyethylene film, overlap 4-6"
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Section through Climate Panel installation on existing
slab with floating floor
Foam Pad
Floating Flooring
Climate Panel:
Concrete Slab:
Slab must be level prior to
Climate Panel installation
Foam Pad
Compact Subgrade
Climate Panel - Material Calculations
Material Calculations
Material
Multiplier
7" Panels
7" ACPs
10" Panels
10" ACPs
U-Turns
* 5/16" tubing 7" spacing
* 5/16" tubing 10" spacing
Groove Tube
Screws
Staples
0.4
0.07
0.3
0.05
0.04
1.9
1.4
0.02
5.4
5.4
* Climate Panel uses 5/16" tubing only
Viega 1-800-976-9819
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Climate Trak
Site Preparation
• Remove nails from bays
• Determine location of manifold
• Decide which end of bays the tubing will
be returning down
• Before drilling and/or modifying any
structural members, please check with
local building codes.
• Using a right angle drill with a 1-1/4" bit,
drill a series of holes through the center of
each floor joist (keep at least 3"
from subfloor).
• Place the Climate Traks as shown in
drawing at left for the most even
heat distribution.
• Dimensions in drawing at left are based
on standard 2" x 8", 2" x 10" or 2" x 12"
floor joists on 16" centers. Adjust spacing
as needed when using engineered joists
or different spacing.
NOTE: Be sure to check with local
building codes to ensure no structural
damage will occur with drilling the joists.
• Begin attaching the Traks via zip screws
(zip screws 3/4" - 1", depending on
subfloor thickness); 5 per side per 4'
Trak and 10 per side for 8'.
• Install both Climate Trak or heat transfer
plates and tubing above crosses in bay
Viega 1-800-976-9819
• Begin attaching Traks 8" - 10" from the
closest hole that was drilled to allow
ample room for tubing to turn.
• Stop Trak installation 12" - 16" short of
where you want circuit to end to allow
for expansion and contraction.
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Climate Trak
• Begin to make non-stressful teardrop-type
loops, for each of the bays, keeping loops
small and manageable.
• Continue making loops. Be sure not to install
any of the tubing into the Traks. Keep loops
fairly small and manageable to prevent
twisting while keeping the loops easy to
transfer the tubing through the holes.
• Transfer tubing from the decoiler through
loops until there is enough tubing to fill
the final bay and make the run back
to the manifold.
• Once the final bay is installed, transfer
tubing from coil to fill next bay and so on.
NOTE: Tubing can be installed into Traks using
a rubber mallet or a palm hammer with a
medium plastic tip.
• Continue transferring the tubing until all
bays are filled and run the end to connect
to the manifold.
Viega 1-800-976-9819
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Climate Trak - Post-Installation Tip Page
Insulation
nsulation should always be used in a
staple-up radiant installation. Ideally there
should be a 1" to 2" air gap in between the
insulation and the Traks/Plates.
Any air current through this space will
decrease the performance of the system
and the insulation. By insulting outside
walls, sealing any large gaps in the subfloor
and ensuring that the insulation is tight
against the joist, this will create a situation
where the air gap is beneficial to the
performance of the system.
However, the air gap should be left only if
that space is considered a dead air space
(absolutely no air current through it, whether
it be from an outside wall, from below or
through holes in the subfloor).
If a dead air space is unable to be achieved,
then the insulation should be pushed up
lightly against the Traks/Plates.
To create a dead air space, begin by
insulating the outside ends of the joist
bays with a separate piece of insulation
(insulation blocking) between the top of the
foundation and the bottom of the subfloor to
keep cold air from entering through sills and
outside walls.
Note: When using expanding foam insulation
on and around the PEX tubing, please
contact the manufacturer of the foam or
Viega for PEX compatibility issues. Some
foams may cause damage to the PEX.
For help contact Technical Services,
1-877-843-4262 ext.351.
Foil Face or Radiant Barrier
R-19
Insulation
R19 Insulation
InsideWWall
Inside
all
Outside
all
OutsideWWall
Insulation Blocking
Fr om Decoiler
To Manifold
Viega 1-800-976-9819
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Climate Trak - Creating a Material List
Chart is intended for conceptual purposes in developing an initial material list; you may use
Radiant Wizard to create a final material list.
Products
Distribution
System
Tubing
ViegaPEX
Barrier,
3/8" or 1/2"
6" Spacing
8" Spacing
9" Spacing
12" Spacing
16" Spacing
18" Spacing
Fasteners
Groove Tube Silicone (for heat transfer plates only)
6" Spacing
8" Spacing
Climate
Traks
9" Spacing
12" Spacing
16" Spacing
18" Spacing
Heat
Transfer
Plates
4" Plate
8" Plate
4" Plate
8" Plate
4" Plate
8" Plate
4" Plate
8" Plate
4" Plate
8" Plate
4" Plate
8" Plate
6" Spacing
8" Spacing
9" Spacing
12" Spacing
16" Spacing
18" Spacing
Net Heated
Estimated
Multiplier
Area (ft2)
Amount
2.2
1.7
1.5
1.1
0.85
0.75
4.6
0.02
0.47
0.23
0.35
0.18
0.31
0.16
0.23
0.12
0.18
0.09
0.16
0.08
0.93
0.70
0.62
0.47
0.35
0.31
Notes: Tubing is sold in coils and fasteners in packages. Where multipliers are located in the
table, multiply the net heated area by the corresponding multiplier to derive the estimated
amount. Use the Maximum Circuit Length Table to calculate the number of circuits required
for the net heated area. Tubing multipliers include 10% overage for leaders.
Tubing Diameter
3/8"
1/2"
Viega 1-800-976-9819
≤25 Btu/ft2
300
400
26-35 Btu/ft2
250
350
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Snow Melt
Site Preparation
• When using foam board to insulate
• Compact the sub-base where necessary.
under slabs, weigh down the boards to
• Final grade should be accurately
prevent wind uplift. In some jobs this can
leveled. It should be covered with
be done by installing wire mesh as soon
a polyethylene film.
as foam boards are placed.
• Install vapor barrier if specified
• Install minimum R-5 insulation rated
(6 mil. minimum). This step is not
for required compressive strength and
recommended for paver or other porous
moisture resistance. Check local codes
surface applications.
for additional requirements.
Cross section of insulation
under concrete slab with snow melt
Foam board
Insulation
(1" min. R-5)
Gravel
Polyethylene Film
(6 mil. min.)
Grade
Foam board insulation
recommended (1" min.).
• Use tubing cutters for even, square cuts.
Use a ratcheting cutter for FostaPEX.
• Install wire mesh, re-bar or other slab
• If a bronze PEX Press coupling will be
reinforcement where specified.
• Depending on the slab design and
installed and encased in a thermal mass,
construction schedule it is generally
it must be completely covered with
easier to sequence the installation of slab
Viega’s coupling repair tape.
reinforcement after the Snow Melt System. • Cover tubing with a protection sleeve
• Remove any unintentional obstructions
and construction waste.
site and arranged neatly.
Viega 1-800-976-9819
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Snow Melt
that the following tools and materials are
on site to help the process go smoothly:
Press Tool.
• ViegaPEX Press couplings.
• Extra mounting strips and clips.
couplings in-slab.
near manifolds.
• Tools for installing fasteners.
• Air compressor for pressure testing.
penetration sleeve.
permanent objects.
• The slab should not be heated until
curing is complete.
• Minimize penetration of expansion joints
in concrete.
Minimize Penetration of Joints
Incorrect
Viega 1-800-976-9819
Correct
57
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Snow Melt
• Any tubing that passes through concrete expansion joints must be protected
with a protection sleeve for a minimum of 6" (15cm) on both sides of the joint.
Cross-sections of sleeving at expansion joints are provided below.
R-5 Insulation:
ViegaPEX Tubing:
Section through metal expansion joint (typical)
R-5 Insulation:
ViegaPEX Tubing:
Viega 1-800-976-9819
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Snow Melt
Concrete has little flexibility and will almost always crack. Jointing is one of the best
ways to control the inevitable. Joint location, which influences the radiant heating
piping design layout, is generally specified by the architect.
Typical Joint Locations
• Edge of thermal mass
• Side length 18'
• Sides less than 1:2 ratio
• Doorways
• Bays in L-shaped rooms
Isolation Joints
When installed against the concrete foundation
at the perimeter of the slab, the joint material
prevents the slab from bonding to the walls. It
also allows the slab to expand without cracking
during temperature fluctuations.
Control Joints
Control joints force cracks to follow the path of
the joint. Without them, random cracks will ruin
the appearance and sometimes the usefulness
of the slab.
Slabs With Isolation And Control Joints
1/2" Isolation joint
(in radiant slabs 1/2"
edge insulation is used)
Control
Joints
Note:
Building or masonry supply
companies sell 1/2" thick
isolation joint material that
is precut to the thickness
of the slab.
Isolation Joints
at pier and perimeter
Viega 1-800-976-9819
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Snow Melt
• The return bend can have a keyhole
shape to minimize the tubing spacing
without kinking the tubing.
• Fasten tubing every two feet and
three times at each U-Turn to hold
shapes created.
• Avoid crossing tubing in slab unless
3/4" minimum concrete thickness
is met.
• Use bend supports in concrete.
and contraction rates of different
materials. Fasten tubing every two
feet and three times at each U-Turn
to hold down any return bends or
other shapes created.
• To avoid waste and to have equal
circuit lengths, a carefully planned
layout should be done.
The return bend can have a
keyhole shape to minimize
the tube spacing without
kinking the tubing.
Use bend supports in concrete.
and contraction rates of
different materials.
Viega 1-800-976-9819
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Snow Melt
Installing the Tubing
Special considerations for stairs and
grades are given below.
Section through stairs (side / plan view)
Wire Mesh
Serpentine Pattern
Reverse Return Pattern
ViegaPEX
Barrier tubing
Wire Mesh
Concrete Stair
Note:
Reverse return pattern
recommended for
level III applications.
ViegaPEX
Barrier tubing
Section through asphalt slope and drainage
Asphalt
ViegaPEX
Barrier tubing
Drainage
pipe
Plastic
Clips
Gravel
Washed
stone
Foam board
insulation
(1" minimum)
Note:
Drainage pipe should be heated
as shown or be installed below
the frost line.
Note:
Appropriate surface drainage is
necessary for snow melting systems.
Viega 1-800-976-9819
Filter
cloth
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Snow Melt - Material List
• Calculate the net snow
melted area.
• Use charts to make an initial
materials list for the net area
to be heated.
Snow Melt System Tubing Estimator
ViegaPEX Barrier Net. Heated
Estimated
Multiplier
/ FostaPEX Tubing
Area
Amount
NOTE: Estimate does not
include controls.
Various Fasteners Available
• Plastic Clip for Foam Board
• Wire Mesh Clip
• Zip Ties
• Foam Staples
NOTE: Fasten tubing every two
feet and three times at each
U-Turn bend
6" Spacing
2.2
9" Spacing
1.5
12" Spacing
1.1
Snow Melt System Material List Estimator
Fasteners
Net. Heated
Estimated
Multiplier
Area
Amount
6" Spacing
1.1
9" Spacing
0.75
12" Spacing
0.55
Total amount of tubing ÷ maximum circuit length = # of circuits
Pressure Testing
The radiant or snow melt system must
be tested before, during and after the
concrete pour, and before the flooring
finishes are applied. Air or water may
be used as the test medium. The
following procedure is recommended
by Viega. Check the local building
codes for compliance or additional test
requirements.
• Do not use water as a test medium in
situations where it may freeze.
• Check that all manifold connections are
tight and properly sealed.
• Make sure all valves are in the open
position to test the integrity of the
entire system.
• Connect manifold pressurization kit
(part # 21210) to the manifold(s).
Viega 1-800-976-9819
Tubing Size
5/8"
3/4"
Max. Circuit
Length (ft)
200
300
• Pressurize the system to not less than
100 psi or 1.5 times the working pressure.
• After initial pressurization, ensure
pressure has not dropped after 20
minutes. Fluctuations may occur due
to temperature fluctuations and tubing
expansion. If a drop has occurred add
pressure to the system.
• Carry out test for a minimum of one hour.
• For leak detection original Palmolive
dishwashing soap maybe used (use
ratio of two oz. soap to one gal. water)
• Pressure must be maintained during
the pour and floor covering installation.
• Once system is deemed leak-free the
concrete pour and/or flooring finishes
may be applied.
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Pressure Drop - Example
Determine the pressure drop associated
with 200 feet of 1/2" tubing at a
maximum flow rate of one gpm:
• Locate desired one gpm flow rate for
the tubing on the left vertical axis.
• Follow to the right until you reach
the diagonal line corresponding to
1/2" tubing.
• Move down to the horizontal axis and
read the pressure drop in feet of head
per foot of tubing (~0.05 feet of head
per foot of tubing).
• Multiply the pressure drop per foot by
the length of tubing to find the feet of
head for the circuit (0.05*200=10 feet
of head).
Determining the pressure drop in a system
using a glycol solution is achieved in
the same manner as for a 100% water
system, except that different pressure
drop charts must be used based on the %
glycol solution. Pressure drop tables for
piping using glycol solution are provided
below. Also, don’t forget to account for
the pressure drop from accessories. Once
the pressure drop and design flow rate are
known, selecting a circulator involves the
same steps as for a 100% water system.
Tubing
5/16"
3/8"
1/2"
5/8"
3/4"
≥25 Btu/h/ft.2 ≤25 Btu/h/ft.2
250'
300'
400'
500'
800'
200'**
250'**
350'**
450'**
750'**
Account for all valves, fittings, heating
source and other piping accessories
(expansion tanks, air separators, etc.)
when sizing circulator.
** Maximum Btu/h/ft.2: 25-35 Btu/h/ft.2
100.0
Flow Rate (GPM)
50.0
10.0
5.0
1.0
0.5
ViegaPEX Barrier Tubing
0.1
10.00
8.00
6.00
5.00
4.00
3.00
2.00
1.00
0.80
0.60
0.50
0.40
0.30
0.20
0.10
0.08
0.06
0.05
0.04
0.03
0.02
0.01
Pressure Drop, 100% Water (FT OF HEAD PER FT OF TUBING)
100.0
Viega 50.0
1-800-976-9819
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0.1
Pressure Drop, 100% Water (FT OF HEAD PER FT OF TUBING)
10.00
8.00
6.00
5.00
4.00
2.00
3.00
1.00
0.80
0.60
0.50
0.40
0.30
0.20
0.10
0.08
0.06
0.05
0.04
0.03
0.02
0.01
Pressure Drop
100.0
Flow Rate (GPM)
50.0
10.0
5.0
1.0
0.5
0.1
10.00
8.00
6.00
5.00
4.00
2.00
3.00
0.20
1.00
0.80
0.60
0.50
0.40
0.30
0.10
0.08
0.06
0.05
0.04
0.03
0.02
0.01
Pressure Drop, 30% Propylene Glycol (FT OF HEAD PER FT OF TUBING)
100.0
Flow Rate (GPM)
50.0
10.0
5.0
1.0
0.5
0.1
10.00
8.00
6.00
5.00
4.00
2.00
3.00
0.20
1.00
0.80
0.60
0.50
0.40
0.30
0.10
0.08
0.06
0.05
0.04
0.03
0.02
0.01
100.0
50.0
Viega 1-800-976-9819
64
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0.1
10.00
8.00
6.00
5.00
4.00
3.00
2.00
1.00
0.80
0.60
0.50
0.40
0.30
0.20
0.10
0.08
0.06
0.05
0.04
0.03
0.02
0.01
Pressure Drop
100.0
Flow Rate (GPM)
50.0
10.0
5.0
1.0
0.5
0.1
Viega 1-800-976-9819
65
10.00
8.00
6.00
5.00
4.00
2.00
3.00
0.20
1.00
0.80
0.60
0.50
0.40
0.30
0.10
0.08
0.06
0.05
0.04
0.03
0.02
0.01
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Pressure Drop
Approximate Friction Loss Allowances for Viega ProPress Fittings
in Feet of Straight Tube
The tables below express friction loss in Viega ProPress fittings as equivalent lengths
of tube, in feet. For example, a 3/4" 90° elbow would impose the same friction
as one foot of 3/4" copper tube.
Bronze PEX Press Fittings
Friction Loss - Equivalent Feet of SDR9 PEX Tubing
Size
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
Coupling
2.9
2
1
1
2
2
1
Size
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
90° Elbow
1/2
1
1
2
2
2
2
3
-
90° Elbow
9.2
9.4
8
10
11
13
19
Tee Run
2.9
2.2
1
2
2
2
2
Tee Branch
9.4
10.4
9
10
11
12
18
Copper ProPress Fittings
45° Elbow
1/2
1/2
1
1
2
2
3
4
-
Tee Run
1/2
1/2
1/2
1/2
1
1
2
-
Tee Branch
1
2
3
4
5
7
9
-
Bronze ProPress Fittings
Size
2-1/2"
3"
4"
Viega 1-800-976-9819
90° Elbow
14
18
28
45° Elbow
8
11
17
66
Tee Run
2
2
2
Tee Branch
16
20
37
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Valve Sizing Chart
Mixing Valve – A mixing valve is controlled by an electronic actuator that receives
a signal from a reset control.
3-Way
This control varies the
Valve with
Electric
temperature being supplied to
Actuator
the manifold by adjusting the
amount of hot supply or cold
return water that is permitted
to flow through the valve.
3 Way Valve with Electric Actuator
3-Way Mixing Valve
Cv
Heat
Capacity
(BTU/h)
Pressure
Drop
(psi)
Pressure
Drop
(ft of Hd)
5
7
12
17
19
24
29
38
50,000
70,000
120,000
170,000
190,000
240,000
290,000
380,000
1.1
2.2
1.0
2.1
1.0
1.6
1.0
1.7
2.6
5.0
2.4
4.8
2.3
3.7
2.2
3.8
47
65
468,000
650,000
1.0
1.9
2.3
4.4
Dimension Stock Code Flow (GPM)
4.7
3/4"
20080
11.7
1"
20081
18.7
1-1/4"
20082
29.3
1-1/2"
20083
46.8
2"
20084
Note: Heat Capacity is based on using water at a ΔT of 20°F. The fluid used to calculate the pressure drop across
the valve is water at 100°F.
4-Way Mixing Valve
Cv
Dimension
2.9
3/4" Copper
20075
7.3
3/4" NPT
20070
7.3
1" Copper
20076
11.7
1" NPT
20071
13.9
1-1/4" Copper
20078
18.7
1-1/4" NPT
20072
29.0
1-1/2" NPT
20073
46.8
2" NPT
20074
Heat
Capacity
(BTU/h)
Pressure
Drop
(psi)
Pressure
Drop
(ft of Hd)
3
4
7
12
7
10
12
13
14
16
19
30,000
40,000
70,000
120,000
70,000
100,000
120,000
130,000
140,000
160,000
190,000
1.1
1.9
0.9
2.7
0.9
1.9
1.0
1.2
1.0
1.6
1.0
2.46
4.37
2.11
6.20
2.11
4.31
2.41
2.83
2.33
3.04
2.37
24
29
37
47
65
240,000
290,000
370,000
470,000
650,000
1.6
1.0
1.6
1.0
1.9
3.78
2.30
3.74
2.31
4.43
Stock Code Flow (GPM)
Note: Heat Capacity is based on using water at a ΔT of 20 °F. The fluid used to calculate the pressure drop across
the valve is water at 100 °F.
Viega 1-800-976-9819
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Valve Sizing Chart
Diverting Valve – A diverting valve is controlled by an electronic actuator that
receives a signal from a reset control. This control varies the temperature being
supplied to the manifold by adjusting the volume of return water being diverted
back into the supply stream.
Mixing Station
Diverting Valve
Cv
Dimension Stock Code Flow (GPM)
Heat
Capacity
(BTU/h)
Pressure
Drop
(psi)
Pressure
Drop
(ft of Hd)
5
50,000
0.9
6
60,000
1.3
7
70,000
0.8
7.6
1"
20002
9
90,000
1.4
10
100,000
0.8
11.1
1-1/4"
20003
12
120,000
1.2
13
130,00
1.4
11.1
1-1/2"
20041
14
140,000
1.6
Note: Heat Capacity is based on using water at a ΔT of 20°F. The fluid used to
calculate the pressure drop across the valve is water at 100°F.
5.3
3/4"
20001
2.04
2.94
1.95
3.22
1.86
2.68
3.15
3.65
Thermostatic Mixing Valve – Water temperature on the outlet of a thermostatic
mixing valve is regulated by a built-in, non-electric temperature control. The
non-electric control is set to the desired temperature and adjusts the amount
of hot supply or cold return water that flows through the valve in order to maintain
the desired supply temperature to the panel.
Viega 1-800-976-9819
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Valve Sizing Chart
3/4" and 1" Thermostatic Mixing Valve
Cv
Stock Code Flow (GPM)
20045
(3/4")
3
20046
(1")
2
2.5
3
3.5
4
Heat
Capacity
(BTU/h)
Pressure
Drop
(psi)
Pressure
Drop
(ft of Hd)
20,000
25,000
30,000
35,000
40,000
0.4
0.7
1.0
1.4
1.8
1.02
1.59
2.30
3.12
4.08
Note: Heat Capacity is based on using water at a ΔT of 20°F. The fluid used to
calculate the pressure drop across the valve is water at 100°F.
Heat Exchanger Information
• In order to properly size a Heat
Exchanger, determine the total BTU/h
load/demand from the system and
compare that with the table below.
• Heat Exchangers can be used in
radiant and snow melt applications.
• Heat Exchangers can be installed
vertically or horizontally.
• A water strainer must be installed on
the inlet connection (20 - 40 mesh
recommended) to the Heat Exchanger.
• Water quality should be pH 6.5 - 8.
• Heat Exchangers should be piped
in a counterflow arrangement.
• Ethylene or Propylene glycol can be
used with Heat Exchangers (glycol
should be tested annually).
• Heat Exchangers using gylcol should
not exceed temperatures of 285°F on
the inlet side of the exchanger (on the
source side do NOT exceed maximum
recommendations of the PEX that you
are using).
Side A
Out
Side B
In
Side A
In
Side B
Out
For snow melt system, 100°F in - 130°F out (40% Propylene Glycol)
Connected to boiler, 180°F supply - 150°F return
Viega
Model
Description
BTU/h
Boiler
Pressure Drop
(psi)
Flow (GPM)
Snow Melt Circuit
Pressure Drop
(psi)
GPM
22006
5x12,16
125,000
8.6
2.9
9.0
3.1
22007
5x12, 36
250,000
17.2
2.2
18.0
2.7
22008
5x12, 70
500,000
34.4
2.8
36.1
3.6
Note: For 200°F boiler water, use the above chart. For 160°F boiler water, multiply model
number by 1.66 and round up to next available size.
Viega 1-800-976-9819
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Circulator Sizing
Example
A system design calls for a circulator that
can move five gallons per minute at a
pressure drop of 10 feet of head. Identify
a Viega circulator that will satisfy this
application.
• On the pump curve for model 12126,
identify the intersection of 10 feet of
head on the vertical axis and five gpm
on the horizontal axis. This point is
below the medium speed curve, which
has a power consumption of 80 watts.
• On the pump curve for model 12127,
identify the intersection of 10 feet of
head on the vertical axis and five gpm
on the horizontal axis. This point is
below the low speed curve, which has
a power consumption of 150 watts.
• Select model 12126, which will satisfy
the design objectives and save 70
Watts during its operation.
In order to select the correct circulator for
the system, the flow and pressure drop
must be calculated.
• Calculate desired flow rate being
supplied by the circulator.
GPMwater = BTU/h(500xΔt)
GPM30% glycol = BTU/h(480xΔt)
• Locate the pressure drop on the left
vertical axis.
• Locate the total system flow rate on
the bottom horizontal axis.
• Follow to the intersection of
both variables.
• Select a pump with a curve just higher
than this intersection. If there are
multiple pumps with curves higher
than this point, then consider selecting
the pump with the lowest watts for the
best energy performance.
Head (ft)
Low Head
Flow (GPM)
Stock Code
12126
Viega 1-800-976-9819
SPEED
HI
MED
LOW
AMPS
0.75
0.66
0.55
70
WATTS
87
80
60
HP
1/25
1/25
1/25
www.viega.com
Circulator Sizing
Head (ft)
High Head
Flow (GPM)
Stock Code
SPEED
12127
HI
MED
LOW
AMPS
1.8
1.5
1.3
WATTS
197
179
150
HP
1/6
1/6
1/6
Selecting the Percent Glycol Mixture
• Use table to determine the percent glycol solution necessary based on the freezing
point of the solution as a function of the percent glycol by volume.
Glycol
(% by volume)
0%
10%
20%
30%
40%
50%
Ethylene
32
25
16
3
-12
-35
Propylene
32
26
18
8
-7
-28
Freezing point (°F) of glycol solutions, based on type and percent by volume.
Viega 1-800-976-9819
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Selecting the Percent Glycol Mixture
• The chart below can be used to figure volume per foot of tube for
glycol considerations.
SDR-9 PEX Tubing ASTM F876/F877/CTS-OD SDR-9
Tubing
Size
5/16"
3/8"
1/2"
5/8"
3/4"
1"
1-1/4"
1-1/2"
2"
O.D.
Wall
Thickness
Nom. I.D.
Weight Per Ft.
Vol. (gal.)/
100 Ft.
.430±.003
.500±.003
.625±.004
.750±.004
.875±.004
1.125±.005
1.375±.005
1.625±.006
2.125±.006
.064+.010
.070+.010
.070+.010
.083+.010
.097+.010
.125+.010
.153+.015
.181+.019
.236+.024
0.292
0.350
0.475
0.574
0.671
0.862
1.053
1.243
1.629
.0340
.0413
.0535
.0752
.1023
.1689
.2523
.3536
.6026
0.34
0.50
0.92
1.34
1.82
3.04
4.52
6.30
10.83
Note: Dimenisions are in English units. Tolerances are ASTM requirements. ViegaPEX is
manufactured within these specifications.
ViegaPEX Barrier tubing is available in both straight lengths and coils.
Dimensions and Physical Characteristics of Copper Tube: TYPE M
Nominal Nominal Dimensions, inches Calculated Values (based on nominal dimensions)
Cross
Weight
Contents of
or
Weight of
Sectional Tube
linear
Standard Outside Inside
Wall
Only, of Tube Tube per
ft.
Size, Diameter Diameter Thickness Area of pounds per & Water,
Bore,
pounds
per
inches
sq. inches linear ft.
linear ft.
Cu ft.
Gal.
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
3-1/2"
4"
5"
6"
8"
10"
12"
.500
.625
.875
1.125
1.375
1.625
2.125
2.625
3.125
3.625
4.125
5.125
6.125
8.125
10.125
12.125
Viega 1-800-976-9819
.450
.569
.811
1.055
1.291
1.527
2.009
2.495
2.981
3.459
3.935
4.907
5.881
7.785
9.701
11.617
.025
.028
.032
.035
.042
.049
.058
.065
.072
.08.
.095
.109
.122
.170
.212
.254
.159
.254
.517
.874
1.31
1.83
3.17
4.89
6.98
9.40
12.2
18.9
27.2
47.6
73.9
106
72
.145
.204
.328
.465
.682
.940
1.46
2.03
2.68
3.58
4.66
6.66
8.92
16.5
25.6
36.7
.214
.314
.551
.843
1.25
1.73
2.83
4.14
5.70
7.64
9.83
14.8
20.7
37.1
57.5
82.5
.00110 .00826
.00176 .0132
.00359 .0269
.00607 .0454
.00910 .0681
.0127 .0951
.0220
.165
.0340
.254
.0485
.363
.0653
.488
.0847
.634
.131
.982
.189
1.41
.331
2.47
.513
3.84
.736
5.51
www.viega.com
Floor Coverings
• There are many types of finished flooring materials used in construction, though the
four most popular types include: wood floors, tile, vinyl and carpet.
• When picking a finished floor material, the lower the R-value the more efficient the
system. This is due to reduced water temperatures.
• Typically, based on their R-values, tile and wood floors will require lower water
temperatures; carpet systems will require higher water temperatures (reference
chart below).
R = 0.25
50
R = 0.5
BTU/h/ft Of FLOOR SPACE
40
35
R = 2.0
30
R = 3.0
25
20
15
10
5
0
80°F
90°F
100°F
110°F
120°F
130°F
140°F
150°F
160°F
170°F
180°F
190°F
SUPPLY WATER TEMPERATURE
Note: Chart above is for 4" slab with 1/2" barrier tubing with R-5 insulation.
Viega 1-800-976-9819
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TOTAL R-VALUE OF FINISH FLOOR ABOVE SUBFLOOR
R = 1.0
45
Floor Coverings
• The chart below references some of the most common floor coverings with their
R-Values listed.
R-Value Table Floor Coverings
Building Board
Gypsum or Plaster Board
Plywood
Particleboard, low density
Particleboard, medium density
Particleboard, high density
Waferboard
Wood subfloor
Cement board
Tile
Ceramic Tile
Marble
Granite
Slate
Linoleum or Vinyl
Rubber, hard
Cork Tile
Carpet Pad
Waffled Sponge Rubber
Synthetic Jute
Bonded Urethane, 4 lb. Density
Bonded Urethane, 8 lb. Density
Prime Urethane, 2.2 lb. Density
Carpet
Acrylic Level Loop
Acrylic Level Loop w/Foam Back
Acrylic Plush
Polyester Plush
Nylon Level Loop
Nylon Plush
Nylon Shag
Nylon Saxony
Wool Plush
Hardwood
Ash
Beech
Viega 1-800-976-9819
1/8"
1/4"
3/8"
1/2"
5/8"
3/4"
7/8"
1"
0.11
0.16
0.18
0.13
0.11
0.20
0.16
0.03
0.23
0.31
0.35
0.27
0.21
0.40
0.31
0.06
0.32
0.47
0.53
0.40
0.32
0.60
0.47
0.09
0.45
0.62
0.71
0.53
0.43
0.80
0.62
0.12
0.56
0.77
0.88
0.66
0.53
0.99
0.78
0.15
0.68
0.93
1.06
0.80
0.64
1.19
0.93
0.18
0.79
1.09
1.23
0.93
0.74
1.39
1.09
0.21
0.90
1.24
1.41
1.06
0.85
1.59
1.24
0.24
0.02
0.01
0.01
0.01
0.05
0.12
0.28
0.03
0.01
0.02
0.03
0.10
0.24
0.56
0.05
0.02
0.03
0.04
0.15
0.36
0.84
0.07
0.03
0.04
0.05
0.20
0.48
1.12
0.08
0.03
0.05
0.06
0.25
0.60
1.40
0.10
0.04
0.06
0.08
0.30
0.72
1.68
0.12
0.04
0.07
0.09
0.35
0.84
1.96
0.13
0.05
0.08
0.10
0.40
0.96
2.24
0.20
0.43
0.52
0.55
0.54
0.41
0.86
1.05
1.10
1.08
0.61
1.28
1.57
1.65
1.61
0.81
1.71
2.09
2.20
2.15
1.01
2.14
2.61
2.75
2.69
1.22
2.57
3.14
3.30
3.23
1.42
2.99
3.66
3.85
3.76
1.62
3.42
4.18
4.40
4.30
0.52
0.51
0.43
0.48
0.68
0.26
0.27
0.44
0.55
1.04
1.02
0.86
0.96
1.36
0.52
0.54
0.88
1.10
1.56
1.53
1.29
1.44
2.04
0.78
0.81
1.32
1.65
2.08
2.04
1.72
1.92
2.72
1.04
1.08
1.76
2.20
2.60
2.55
2.15
2.40
3.40
1.30
1.35
2.20
2.75
3.12
3.06
2.58
2.88
4.08
1.56
1.62
2.64
3.30
3.64
3.57
3.01
3.36
4.76
1.82
1.89
3.08
3.85
4.16
4.08
3.44
3.84
5.44
2.08
2.16
3.52
4.40
0.15
0.12
0.30
0.24
0.45
0.36
0.60
0.48
0.75
0.60
0.90
0.72
1.05
0.84
1.20
0.96
74
www.viega.com
Floor Coverings
• Another aspect to keep in mind when
dealing with floor coverings is the floor
surface temperature.
• The floor surface temperature should
never exceed 85°F because the
system can be uncomfortable to the
touch and/or potential flooring damage
can occur.
• Please reference the chart below for
calculating surface temperatures.
Procedure
Example
• Locate desired output (from Radiant Wizard
or other source) on left vertical axis.
• Follow to the right until you reach the curve.
• Then move down to the horizontal axis and
read the ∆T between the room temperature
and the floor surface temperature.
• Output needed: 25 BTU/h/ft.2
• Room temperature: 68°F
• Temperature ∆T
(from chart): ~ 12°F
• Floor surface temperature:
68°F + 12°F = 80°F
• The floor surface temperature will be 80°F
with 25 BTU/h/ft.2 output and 68°F
room temperature.
• Add the room temperature and the ∆T to get
the floor surface temperature.
Floor Surface Temperature Chart
**For more information on installation, refer to:
The Radiant Panel Association.
- TCA Handbook for Ceramic Tile
Installation. The Tile Council of
North America.
- The Marble Institute of America.
-www.concretenetwork.com
• The flooring manufacturer and one
of the following resources for
installation guidance:
-Standard Guidelines for the Design
and Installation of Residential
Radiant Panel Heating Systems.
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Troubleshooting
Symptom
Cause
Corrective Action
No water pressure
present at the
heat source
• Make sure automatic fill
valve is not turned off
• Automatic fill valve
has malfunctioned
• If the system has
anti-freeze in it and
is connected to
glycol makeup
• Turn on automatic fill valve
• Replace automatic fill valve
• Make sure anti-freeze has
been added to the appropriate
concentration and the system
is pressurized (12-15 psi)
There is no hot
water present
at the heat source
• No fuel or electricity
to the heat source
• Outdoor reset is not active
• Make sure limit controls
controlling the heat source
are set correctly or
not defective
• Make sure heat source
is properly maintained
• Make sure fuel system has
adequate fuel stored
• Make sure there is power
supplied to the heat source
• Adjust warm weather shutdown
• Ensure outdoor sensor is not
located by artificial heat source
• Set limit controls correctly
• Replace limit controls
• Have system serviced regularly to
ensure proper combustion
The heat source
is providing
temperature and
pressure, but there
is no heat going to
the radiant system
• Primary loop may
be airbound
• Purge primary loop
• Primary loop circulator
may be damaged
or not working
• Turn on valves if this is found
• Be sure there are no valves
turned off
• Make sure mixing valves,
diverting valves and balancing
valves are set properly
• Check for proper operation
of mixing valves, diverting
valves or balancing valves
• If excessive air is present the
system should be purged
• Check secondary system
side for air through the
manual air bleeder
• Check that electronic
mixing actuators are
wired properly
• Check for proper secondary
circulator operation
• Check that manifold circuits
are not closed (balancing
valves, flow meters,
power heads)
Viega 1-800-976-9819
• Check for circulator function and
power
76
• Check wiring schematics to be
sure these are properly wired
(open and closed are switched)
• Check for circulator function and
power
• If balancing valves or flow meters
are used, make sure
they are properly set per
radiant design
• If circuit ball valves are used,
make sure they are open
• If power heads are used,
check for proper operation.
Blue ring should be exposed 1/8"
when open
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Troubleshooting
Symptom
Cause
Corrective Action
• Check for power to the
power head
• If no power to power head,
check for power 24 volts
from transformer or
zone control
Power head does
not open
• Thermostat does not work
• Basic Heating Control
Radiant system
not heating
• If 24 volts supplied to power head
but does not open, replace power
head
• If you’re using a zone control
check the fuse (visually or
with ohms meter) Check that
thermostat is functioning properly
and initiating a call for heat
• If using external transformer test
with volt meter
• Check for power supply
to thermostat
• Check that thermostat
is wired properly
• Check that thermostat
is set properly
• Make sure control
is installed properly
• Make sure the control is
programmed properly with figures
from the design
• Make sure the system is not
shut down due to warm weather
shut down
• Make sure outdoor sensors are not
located near artificial heat source
• Make sure supply temperature
sensor is located downstream of
mixing point
• Make sure indoor sensors are not
located near artificial heat source
• Make sure the sensors are
reading accurately. Disconnect
the sensors and test the ohms
resistance through them. The
temperature at the sensor coupled
with the resistance reading should
be represented in the values of the
chart on next page. If the reading
is different replace the sensor.
For assistance call Technical Services, 1-877-843-4262.
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Sensor Resistance
Outdoor Sensor for the Basic Heating Control
Temperature
°F
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
°C
-46
-43
-40
-37
-34
-32
-29
-26
-23
-21
-18
-15
-12
-9
-7
-4
-1
2
4
7
10
13
16
18
21
24
27
29
Viega 1-800-976-9819
Resistance
Ω
490,183
405,710
336,606
280,279
234,196
196,358
165,180
139,402
118,018
110,221
85,362
72,918
62,465
53,658
46,218
39,913
34,558
29,996
26,099
22,763
19,900
17,436
15,311
13,474
11,883
10,501
9,299
8,250
Temperature
°F
90
95
100
105
110
115
120
125
130
135
140
145
150
155
160
165
170
175
180
185
190
195
200
205
210
215
220
225
78
°C
32
35
38
41
43
46
49
52
54
57
60
63
66
68
71
74
77
79
82
85
88
91
93
96
99
102
104
107
Resistance
Ω
7,334
6,532
5,828
5,210
4,665
4,184
3,760
3,383
3,050
2,754
2,490
2,255
2,045
1,857
1,689
1,538
1,403
1,281
1,172
1,073
983
903
829
763
703
648
598
553
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ting Control
Basic Heating Control
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Basic Heating Control
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Settings for Basic Heating Control
Symptom
Cause
User Settings
ROOM
The desired room temperature.
OUTDR DSGN
The design outdoor temperature
used for calculating heat-loss.
Obtained from the Design
Outdoor Temperature Chart, or
Viega’s Radiant Wizard*.
MIX DSGN
The design supply water
temperature obtained from the
Supply Water Temperature / BTU
Output Chart, or Viega’s
Radiant Wizard.
MIX INDR
The design indoor air
temperature used in the heat
loss calculation* for the heating
system (only visible with the
Advanced/Installer DIP switch
set to Advanced). Should be
equal to “ROOM,” the desired
room temperature.
MIX MAX
The maximum supply
temperature for the mixing
system (only visible with the
Advanced/Installer DIP switch set
to Advanced). This setting should
not be relied upon for a safety
high limit. Install a Modulating
Safety High Limit Control (stock
code 16108) on the Injection
Station to protect control in case
of main control failure or removal.
Set higher than “MIX DSGN”
and account for the heat loss of
distribution piping.
Continued on next page
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Settings for Basic Heating Control
Continued from previous page
Symptom
Cause
User Settings
WWSD
Warm Weather Shutdown; the
design outdoor air temperature at
which the control only operates in
exercising mode (only visible with
the Advanced/Installer DIP switch
set to Advanced).
UNITS
The units of measure that all
of the temperatures are to be
displayed in the control (either
°F or °C).
*See corresponding installation manuals, i.e. Concrete System, Climate Panel or Climate Trak, for appropriate charts.
Viega 1-800-976-9819
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Basic Snow Melt Control
Slab Sensor
Snow
Detector
T
T
T
T
White
Black
Yellow
Yellow
+
C +
120
COM
240
Timer
Class II
Transformer
120 V AC
Power Supply
L
R
NO
NO
C
NC
C
NC
Pump RT WT
and
Boiler
Relay
C
N H 3 4 4 6 6 5
N/O N/C N/C N/O
System Circulator
Boiler Circulator
Boiler
N
Viega 1-800-976-9819
24
VAC
COM
83
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Viega ProRadiant
Pocket Guide
Snow
Slab Sensor
Detector
T
T
Basic Snow MeltYellow
Control
White
Black
Yellow
T
T
+
C +
120
COM
240
Timer
Class II
Transformer
R
Capillary
Sensor
C
120 V AC
Power Supply
L
NO
NO
C
NC
C
NC
Pump RT WT
and
Boiler
Relay
24
VAC
COM
N H 3 4 4 6 6 5
N/O N/C N/C N/O
Boiler Circulator
System Circulator
Boiler
N
Alternative wiring diagram
Slab Sensor
Snow
Detector
T
T
Yellow
White
Black
Yellow
T
T
+
C +
120
COM
240
Timer
Class II
Transformer
R
C
120 V AC
Power Supply
L
NO
C
NC
System
Circulator
(P2)
NO
C
NC
Boiler
Circulator
(P1)
N
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Snow
Detector
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85
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SETPOINT
RELAY 1
Notes
Setpoint
Differential
Sensor
Heat/Cool
Setback
RELAY 2
Setpoint
Differential
Sensor
Heat/Cool
Setback
Viega 1-800-976-9819
Default
Description
Default: 70° F (21° C) Desired setpoint temperature
Range: -40° to 248° F Default: 70° F (21° C) Range:
(-40° to 120° C)
-40° to 248° F (-40° to 120° C)
Differential is used for Relay
Default: 20° F (-7° C)
outputs. Default: 20° F (-7°
Range: 1° to 300° F
C) Range: 1° to 300° F (1° to
(1° to 149° C)
149° C)
Select Sensor A or B
associated with RELAY1.
Select if RELAY 1 will be Heat
(Default: HEAT)
or Cool (Default: HEAT)
The Setback temperature
Default: 60° F (16° C), option displays if scheduling
Range: -40° to 248° F is enabled.
(-40° to 120° C)
Default: 60° F (16° C) Range:
-40° to 248° F (-40° to 120° C)
Notes
Default
Description
Default: 70° F (21° C) Desired setpoint temperature
Range: -40° to 248° F Default: 70° F (21° C) Range:
(-40° to 120° C)
-40° to 248° F (-40° to 120° C)
Differential is used for Relay
Default: 20° F (-7° C)
outputs. Default: 20° F (-7°
Range: 1° to 300° F
C) Range: 1° to 300° F (1° to
(1° to 149° C)
149° C)
Select Sensor A or B
associated with RELAY2
Select if RELAY 2 will be Heat
(Default: HEAT)
or Cool (Default: HEAT)
The Setback temperature
Default: 60° F (16° C) option displays if scheduling
Range: -40° to 248° F is enabled.
(-40° to 120° C)
Default: 60° F (16° C) Range:
-40° to 248° F (-40° to 120° C)
86
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SENSORS
# Sensors
Notes
Sensor A
Default
Default: 2
Default: F
(Fahrenheit)
Units
Default: 0.0,
Range: +/-10° F
(+/-6° C)
Calibrate
Label
Sensor B
Calibrate
Notes
Default
Default: 0.0 Range:
+/-10° F (+/-6° C)
Label
Limits
Hi Limits
Throttling
Range
(Sensor B
only)
Viega 1-800-976-9819
87
Description
The value entered here
determines the number of
sensors displayed on the
home screen.
UNITS (° F or ° C). This is a
global change and affects the
unit values for all temperature
parameters on all displays.
Ensure that the wire size
calibration value is within
the limits.
The label names in list order
are: Sensor, Boiler, Outdoor,
Duct, Dischrg, Chiller, Room,
Supply, Return and Animals.
Description
Ensure that the wire size
calibration value is within
the limits.
The label names in list order
are: Sensor, Boiler, Outdoor,
Duct, Dischrg, Chiller, Room,
Supply, Return and Animals.
(Sensor B only). The LIMIT
option acts only on Modulating
Output 1. When you select Hi
Limit or Low Limit, the Sensor
B menu changes and adds the
Hi/Low Limit and Throttling
Range items.
Sensor B can be assigned a
high/low limit, so that as you
are controlling temperature at
Sensor A, the control adjusts
its modulating output to
prevent exceeding the userentered limit for Sensor B.
The throttling range for the
modulating high or low limit
positions the setpoint at the
end of the throttling range.
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OUTPUT
Options
USE
SCHED
Notes
Default
Default: NO
MIN OFF or
MIN ON
Default: 0 (zero)
Range: 0 to 990
seconds
DI
OPTIONS
(digital
input
options)
Default: DISABLE
Viega 1-800-976-9819
88
Description
With Scheduling enabled, when
you return to Program mode,
the new option for Scheduling
displays. You can press the
home key and then the menu
key to view the Schedule
options in the menu.
The minimum OFF or ON time
applies to all relay outputs.
When minimum OFF or ON
time is active, relays waiting to
be energized display a flashing
square underneath the relay
number on the home screen. If
the minimum OFF time is not
equal to zero (0), the minimum
OFF time activates at power-up.
To manually override, press the
 button at any time.
The DI Option you select
applies to all outputs. This
option overrides any Setpoint/
Setback values entered in the
Schedule. When the digital input
(DI) closes, all outputs follow
the DI option value (Disable,
Setback or Ignore): DISABLE
disables the outputs; relays
return to de-energized state
and Mod outputs return to
0% output. SETPOINT forces
the control to the setpoint
temperature. SETBACK enables
a setback temperature value to
be programmed for each output
and forces the control to the
setback temperature. • ENABLE
energizes all relays and MOD
outputs to 100%. Use this
option carefully.
• IGNORE causes the digital
input to have no effect on the
Relay or Mod outputs.
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Setting up the
Relays
TYPE
(standard
or floating)
Notes
Default
Default: STANDARD
(not floating)
ACTUATOR
(floating
relay only)
INTEGRAL
(modulating/
floating
relay only)
Default: 400 seconds
Range: 0 to 3,600
seconds
DERIVATIVE
(modulating/
floating
relay only)
Default: 0 seconds
Range: 0 to 3,600
seconds
Viega 1-800-976-9819
89
Description
For these models, this selection
displays only for Relay 1. If you
select FLOATING, the relays
are paired (1-2) and are set up
together. Continue with Floating
Relay Menu.
The actuator run time is
defined as the time needed
to move the actuator from
the fully closed to fully open
position and vice versa.
The Integral time is factory
set for 400 seconds. This is a
good middle range and should
satisfy many applications. The
integral time can be increased
for applications where sensed
response is slow, and can be
decreased for applications
where sensed response is fast
(e.g. discharge air control). The
purpose of integral action is to
reduce or eliminate the offset
from setpoint during steady
state control that is often seen in
proportional only control.
The Derivative default value
is factory set to zero (no
derivative control). It is strongly
recommended that the
derivative remain at zero (0)
unless you have a good reason
to adjust it. Derivative control is
not needed in the vast majority
of HVAC applications.
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Advanced Snow Melt Control
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Advance Snow Melt Control
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SNOW MELTING - CHAPTER 2
Item Field
Page
Advanced
2.6 Adjust MenuSnow
(1 of 2) Melt Control
5
8
Description
Run Time - The time for which the zone is operated
once it has reached its melting temperature.
Add Melt - The additional time for which the zone is
operated once the Snow Melting Sensor becomes dry.
Range
0:30 to 17:00 hr,
INF (Infinity)
Default = 4:00 hr
0:00 to 6:00 hr
Default = 0:30 hr
Advanced Snow Melt Sensor present
8
Sensitivity - Sensitivity of water detection of the
Advanced Snow Melt Sensor.
Auto, 20 to 80 %
Default = Auto
Advanced Snow Melt Sensor present
VIEGA NA
7
Melting - The desired slab surface temperature while in
the Melting Mode.
32 to 95°F
(0 to 35°C)
Default = 36°F (2°C)
6
Idling - The desired slab surface temperature while in
the Idling Mode.
OFF, 20 to 95°F
(OFF, -7 to 35 °C)
Default = OFF
5
WWSD Warm Weather Shutdown.
Slab must exceed 34°F (1°F) to enter WWSD
Auto, 32 to 95°F
(Auto,0 to 35°C)
Default = Auto
5
Cold Weather Cut Out - The Cold Weather Cut Out
temperature for the snow melting system.
30 to 50°F
(-34 to 10°C)
Default = 10°F (-12°C)
4
Mix Max - The maximum supply water temperature for
the mixing system.
4
Mixing - The type of mixing device that is to be used.
FLOT (Floating)
VAR (Variable speed)
Default = VAR
4
Motor Speed - The time the actuating motor requires to
operate from fully open. Set to 70 sec. for #18003
actuator, 90 sec for #18018, 140 sec for #18019.
MIXING = FLOT
30 to 230 seconds
Default = 150 seconds
7
Boil Sensor - The location of the boiler sensor; this
affects operation of the Boiler contact.
SUP, RET, NONE
Default = SUP
1-877-VIEGA-NA
Viega 1-800-976-9819
80 to 210°F, OFF
(27 to 99°C, OFF)
Default: 140°F (60°C)
12
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SNOW MELTING - CHAPTER 2
Item Field
Page
2.6 Adjust Menu (2 of 2)
5
7
6
Description
Delta T Maximum - The maximum ∆T for the snow
melting system. Set according to the design drop for
your snow melt system (usually 30°F).
10 to 70°F, OFF
(6 to 39°C, OFF)
Default = OFF
Differential - The differential for the snow melting system.
Auto, 2 to 42°F
(Auto, 1 to 23°C)
Default = Auto
Boil SENS = SUP
Boil Minimum - The minimum temperature allowed for
the boiler target temperature.
Boil SENS = NONE
VIEGA NA
OFF, 80 to 180°F
(OFF, 27 to 82°C)
Default = 140°F (60°C)
6
Fire Delay - The time delay the control can expect
between the time the Boiler contact closes and the boiler
fires.
Boil SENS = SUP
0:00 to 3:00 minutes
Default = 0:10 min
4
Exercise - The frequency with which the control
exercises the pumps and valves that are operated by
the control.
30 to 240 hours
(in 10 hour steps)
Default = 70 hr
Units - The units of measure that all of the temperatures
are to be displayed in by the control.
°F, °C
Default = °F
1-877-VIEGA-NA
Viega 1-800-976-9819
Range
13
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Terms & Symbols
Stainless Manifold
w/Flow Gauges
Pressure Reducing Valve
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Viega Product Glossary
3-Speed Circulator Pump: Viega offers two (low and high head) three-speed, wet
rotor, direct drive in-line circulator pumps designed for residential and light commercial
applications. These circulators are quiet and maintenance-free, making them ideal to
use in primary and / or secondary loop piping.
Advanced Snow Melt Control: The Viega Advanced Snow Melt Control provides full
automatic snow and ice detection in open-air spaces such as driveways, parking
areas, ramps, stairs and flat roofs. The control operates a floating action actuator or
a variable speed injection pump to provide both boiler and slab protection. Viega’s
Advanced Snow Melt Control is equipped with a Snow Melt Sensor that measures
the slab temperature, surface temperature and surface moisture level. When the
control is not in Melting mode, the system can either be shut down or it can be
maintained at an idle temperature for faster response and improved safety.
Assembled Climate Panels (ACP): Climate Panels that are sold pre-assembled
as an easier method of installation.
Basic Digital Setpoint Control II: General-purpose temperature control with a wide
range of applications in the HVAC industry. This control provides two isolated SPDT
relay contacts.The two relays are controlled by a watertight sensor. Included with the
Basic Digital Setpoint Control. This control is commonly used as basic heating and/or
cooling system control for commercial and residential slab application.
Basic Heating Control: The Viega Basic Heating Control is designed to control the
supply water temperature to a hydronic system in order to provide outdoor reset
operation. The Basic Heating Control uses a floating action actuator mounted on a
diverting or mixing valve to regulate the supply water temperature. The control has a
Liquid Crystal Display (LCD) to view system status and operating information.
Basic Snowmelt Control II: This control provides automatic snow melt system
activation with slab high limit. This control senses low air temperature and precipitation
to activate the snow-ice melting system. A slab sensor prevents overheating of the
slab. The control is equipped with a timer switch for manual activation.
Climate Panel: A dry heating panel that uses grooved plywood panels, backed with
aluminum as an attachment media for 5/16" PEX tubing. Designed to go under any
type of floor covering – hardwood, carpet, tile or vinyl. This gives homeowners a great
deal of flexibility when designing their new home.
Climate Mat: A pre-engineered, pre-assembled roll-out radiant loop, used in concrete
pour radiant applications. Climate Mats are available in eight different configurations
and shipped to the customer tested and ready to install.
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Climate Trak: A extruded aluminum track system used for radiant heating applications
in both new construction and retrofit applications. The product is designed to strongly
grip the PEX tubing without air gaps or the need for sealant/adhesives, ensuring high
heat conduction. Climate Traks are fastened tightly to the underside of subfloor for
maximum system performance. Available in 4' and 8' lengths, this system utilizes 3/8"
and 1/2" tubing.
Constant Circulation: Technology employed by The Basic Heating Control where the
pump is active throughout entire heating or cooling season to maintain constant flow
through heated area. Temperature is controlled by resetting the water temperature to
match the desired output.
Diverting Valve: Used to adjust fluid temperature in hydronic applications. Diverting
valves are available from Viega in 3/4" – 1-1/2" sizes. These valves are used in Viega’s
Mixing stations.
Groove Tube: Groove tube is a silicone-based caulking with additives that aid in heat
transfer. It is used in Climate Panel and Heat Transfer Plates for installations.
FostaPEX: A multilayer PEX tubing for use in hot, cold and hydronic piping applications.
FostaPEX has a fully dimensional inner PEX core covered by an aluminum layer and
outer polyethylene layer. FostaPEX is available in red and silver coils. It is also available
in silver straight lengths. FostaPEX is for use with PEX press fittings only and is
available in sizes 1/2" – 1".
Heat Exchanger: A product that transfers heat from one fluid to another without
allowing them to mix.
Hydronic: A term used in the heating and cooling industry for components, systems or
ideas that use fluid as a transfer medium.
Heat Transfer Plates: Light gauge aluminum plates intended to be secured under the
subfloor in between the floor joists, and used for radiant heating. The plates are 5"
wide, 19" long and are available for use with 3/8" and 1/2" tubing.
Mixing Station: A Viega component that supplies water temperature modulation when
connected to a variety of heat sources such as conventional or condensing boilers,
water heaters or geothermal heat pumps.
Mixing Valve: A valve used to regulate fluid temperature. These valves are ideal for
mixing fluid to control temperature in heating, cooling and snow-ice melting system
applications. The valves can be controlled both manually or automatically with the use
of actuator.
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Mixing Valve Actuator: A 24-volt motorized control device used to adjust the outlet
fluid temperature from a three- or four-way mixing valve.
Outdoor Reset Control: A control method that adjusts the mixed water temperature
based on the outdoor temperature.
ProBloc: A mixing device used to provide a mixed fluid temperature to a heating panel.
The Viega ProBloc provides mixed system supply fluid temperature that is modulated
by a built-in mixing valve and actuator. Viega ProBlocs are available with low and high
head three-speed circulator configurations.
Proportional Actuator: An actuator is used in electronic temperature control systems
that use hot and/or cold water as the controlled medium in radiant heating systems,
snow melting or other temperature mixing applications.The actuator is designed for
operation by a 0-10 V DC controller such as a DDC system.This actuator will not work
with Viega controls such as the Basic Heating Control.
Powerhead: A two-position actuator for zone control that mounts on the return valve
of the Stainless Manifold. A 24 VAC signal actuates the head to open the valve. The
position of the valve is normally closed. Upon opening the valve, the integral SPST
contacts close. Viega offers a two- and four-wire model.
Pump and Boiler Relay: An electrical device that through the use of a thermostat
or other switching device, can trigger a call for heat as well as circulator activation.
R-Value: A value indicating the thermal resistance of the material. The greater
the R-value, the slower heat will conduct through the material, all other conditions
being equal.
Secondary Piping: Piping that is either directly connected to primary piping
or originates off manifolds fed by primary piping but is not located within
a radiant emitter.
Series Piping: Piping that connects manifolds or radiant emitters from end to end,
creating one continuous loop.
Snap Panel: A plastic grid fastening system that accepts 1/2" ViegaPEX Barrier tubing
for slab and lightweight concrete pour radiant applications. Unique grid pattern allows
for tubing to be laid out in both straight and diagonal directions.
SVC: Abbreviation for Stadler Viega Connection. This is important to know as any
threaded connection with this identification will be a standard proprietary Viega thread.
These threads are used on Viega manifolds as well as a variety of threaded fittings.
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Thermostatic Mixing Valve: Used to adjust fluid temperature in a hydronic
application. This type of valve will maintain a constant supply temperature when
supplied with varying supply and return fluid temperatures. Valves are available in
3/4" and 1" sizes.
Three Position Actuator: A 24-volt motorized control device used to adjust the output
fluid temperature from the Viega diverting valve.
ViegaPEX Barrier: Tubing produced from cross-linkable, high-density polyethylene
resin. This cross-linkable resin is produced by grafting organo-silane molecules onto a
base polyethylene chain. A catalyst that initiates the cross-linking process is blended
with the resin before extrusion. Cross-linking is conducted after extrusion by exposing
the tubing to heat and moisture (steam). ViegaPEX Barrier includes four layers. The first
layer is the cross-linked, high-density polyethylene. The second layer is an adhesive for
the third layer, the ethylene vinyl alcohol layer (EVOH oxygen barrier). The fourth layer
is another thin layer of polyethylene, put on the outside to protect the EVOH layer from
damage. EVOH is highly resistant to the passage of oxygen.
Zone Control: A wiring and switching center for individual and / or multi-room control.
The Zone Control simplifies wiring between Thermostats and Powerheads. LED lights
on housing indicate individual zone heat demand. Available as a 4 or 6 zone, both
with priority. Zone Control includes optional circulator activation function and
built-in transformer.
Viega 1-800-976-9819
98
www.viega.com
Notes:
Viega 1-800-976-9819
99
www.viega.com
Viega
301 N. Main, 9th Floor
Wichita, KS 67202
Phone: 1-800-976-9819
Fax: 1-800-976-9817
www.viega.com
insidesales@viega.com
©2012, ProPress®, FostaPEX®, GeoFusion®, Seapress® MegaPress®,
MegaPressG®, and Viega® are registered trademarks of Viega GmbH &
Co. PureFlow®, Smart Connect®, Climate Panel®, Climate Mat®, Climate
Trak®, MANABLOC®, Radiant Wizard®, S-no-Ice®, Snap Panel®, XL® and
XL-C® are registered trademarks of Viega LLC. MiniBloc™, Rapid Grid™,
ProRadiant™, PolyAlloy™, SmartLoop™ and Zero Lead™ are trademarks
of Viega LLC; ProPressG™ and ViegaPEX™ are trademarks of Viega
GmbH & Co. KG. RIDGID® is a registered trademark of RIDGID, Inc.
724888_PR_PG_US_0212

Viega ProRadiant Pocket Guide

Transcription

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