Digital Thermostat Product Instructions

Product
Instructions
ProRadiant Digital Thermostat
Applications
The digital thermostat is ideal for individual room
temperature control. A user-friendly, three-button design
allows for easy adjustment of settings. The thermostat
can sense either room temperature or floor temperature.
Adjustable temperature setback function allows for
energy savings. The thermostat can control up to four
powerheads directly or can be connected to a zone /
circulator control box. With optional floor sensor, the
thermostat provides floor high or low limit function for
floor protection or floor warming.
Features
• Compact design
• Digital LCD display
• Regulates floor or room temperature
• Optional Floor Sensor
• Setback function
• On/off switch
2.60"
Specifications
Control:
Microprocessor control
Accuracy:0.1°F
Set temperature range: 41­°F - 99­°F, 0.5­°F increments
Environment range:
32­°F - 122­°F
Power supply:
24 VAC +/_ 10% 60Hz 15 W max
TRIAC
output 24 VAC, 15 W max
Output:
NTC
thermistor
(10K Ohms), 10' cable
Optional floor sensor:
41
°
F
98.6°F
Floor limiting range:
­­
­
Electrical Protection: Class II - IP30
1.22"
3.15"
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: 800-976-9817
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Product
Instructions
Installation
1. Remove oval rubber plug from front of thermostat faceplate.
2. Using a small Phillips screwdriver remove screw securing thermostat faceplate to mounting plate.
3. Remove the faceplate from mounting plate.
4. Insert the thermostat wire through the bottom left opening in the thermostat.
5. Attach the mounting plate to the wall approximately 60" above the floor and a minimum of 8" away from any
openings. Do not locate the thermostat behind doors or above or next to any heat generating equipment.
6. Wire the thermostat as outlined in pages 3-5.
7. Attach the thermostat faceplate and secure with the cover screw.
8. Install the faceplate plug to hide the cover screw.
°F
°C
Cover Screw
Faceplate Plug
~60"
Do not install
thermostats in these locations
Min. 8"
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: 800-976-9817
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Product
Instructions
Wiring thermostat to zone control
1. Connect the "R" terminal of the thermostat to the "R" terminal of the zone control. "R" supplies power to
the thermostat.
2. Connect the "W" terminal of the thermostat to the "W" terminal of the zone control. "W" is the switching signal.
3. Connect the "C" terminal of the thermostat to the "C" terminal of the zone control. "C" is common.
Note: Factory jumper between 3 and 4 must remain in place for use with 2-wire powerhead. Factory jumper
between 3 and 4 must be removed for use with 4-wire powerheads and zone valves. Up to (4) powerheads may
be controlled from a single thermostat without the use of an external relay. Refer to zone control, zone valve, and
powerhead product instructions for further details.
Thermostat -18050
C C R W
NTC A/B
POWER IN
120 V AC
Power Supply
L
R
C C R W
FUSE
PUMP
END
SWITCH
C C R W
NTC A/B
NTC A/B
ZONE 4 PRIORITY
ISOLATED
END
SWITCH
(5 AMP MAX)
C
Thermostat -18050
Thermostat -18050
N/O COM N/C
ZONE 4 RELAY
N
RWC
ZONE 2
RWC
ZONE 1
RWC
ZONE 4
RWC
ZONE 3
OFF
ON
ZONE CONTROL (18060, 18062)
WITH OPTIONAL PRIORITY
ZONE 1
1 2 3
4
ZONE 2
1
2 3
4
ZONE 3
1
2 3
4
ZONE 4
1 2 3 4
JUMPER
3&4
JUMPER
3&4
IF PRIORITY
IS USED
Viega
POWERHEAD (15061,15070)
2 WIRE, 24 V,
FOR USE WITH
STAINLESS MANIFOLD
POWERHEAD (15064,15069)
4 WIRE, 24 V,
FOR USE WITH
STAINLESS MANIFOLD
Viega
Viega
ZONE VALVE
(17230, 17231,
17232, 17233,
17234, 17235)
Red
Red
Yellow
Yellow
Yellow
Yellow
Red
Red
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: 800-976-9817
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Product
Instructions
Wiring thermostat to powerhead
1. Connect the "C" and "R" terminals of the thermostat to transformer.
2. Connect the other "C" terminal and "W" terminal of the thermostat to Viega powerhead.
3. Up to (4) powerheads may be controlled from a single thermostat without the use of an external relay.
Viega
Thermostat - 18050
Viega
C C R W
120 V AC
Power Supply
N
NTC A/B
Class II
Transformer
LEGEND: Zone Controls
Low Voltage
Line Voltage
C
Viega
R
L
Wiring thermostat to four wire powerhead/zone valve head
1. Connect a yellow wire from the
powerhead/zone valve head
to the C terminal on the digital
thermostat.
2. Connect the other yellow wire
from the powerhead/zone
valve head to the W terminal
on the thermostat.
3. The red wires can be
connected to the boiler
contact (TT), pump relay or
other auxiliary device requiring
contact closure.
Red
Yellow
Yellow
LEGEND: Zone Controls
Low Voltage
Line Voltage
Viega
Thermostat -18050
C C R W
TO T-T BOILER CONTACT, PUMP
RELAY OR OTHER AUXILIARY
DEVICE REQUIRING CONTACT
CLOSURE.
120 V AC
Power Supp
Red
L
Yellow
Yellow
120 V AC
Power Supply
N
Class II
Transformer
C
R
L
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: 800-976-9817
PI-PR 560621 1017 (Digital Thermostat)
N
NTC A/B
Red
4. Connect the C terminal from
the transformer to the C
terminal on the thermostat.
5. Connect the R terminal from
the transformer to the R
terminal on the thermostat.
Red
TO T-T BOILER CONTACT, PUMP
RELAY OR OTHER AUXILIARY
DEVICE REQUIRING CONTACT
CLOSURE.
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Product
Instructions
Wiring floor sensor
Resistance Chart
The digital thermostat floor sensor is a two-wire, watersealed probe that can be used to accurately measure
slab or floor temperatures. Floor sensor should be placed
in conduit for protection and repair. ½" PEX (capped
or plugged) is commonly used as conduit for the slab
sensor. Sensor should be 18" from line voltage (110V). If
crossing line voltage wire, cross at 90° angle. Line voltage
interference can result in inaccurate readings of the sensor.
1. Connect one wire of the floor sensor to one "NTC"
terminal of the digital thermostat.
2. Connect the other wire of the floor sensor to the other
"NTC" terminal of the digital thermostat.
Temperature
Resistance (kΩ)
50°F
~ 19.5kΩ
59°F
~ 15.5kΩ
68°F
~ 12.5kΩ
77°F
~ 10kΩ
86°F
~ 8kΩ
Testing Floor Sensor
Tools
A good quality electrical test meter capable of measuring
up to 5,000kΩ (1kΩ = 1,000Ω).
A good quality analog or laser thermometer. If an analog
style thermometer is used it must be left on the floor long
enough for it to acclimate to the floor temperature.
Thermostat - 18050
C C R W
NTC A/B
Output (Com)
Optional Floor
Sensor (18051)
Output
(Switched Signal)
120 V AC
Power Supply
1. Measure the floor temperature.
2. Disconnect the floor sensor wires at the thermostat
3. Connect the electrical tester to the floor sensor
wires and measure resistance.
Class II
Transformer
4. Compare the measured temperature and resistance
to what is listed in the table above.
Corresponding zone control and thermostat
terminals
Zone Control - 18060/62
Thermostat - 18050
Instructions
Zone Control - 18032
Thermostat - 18029
5. If the measured resistance is higher or lower by
+/-5%, you may have a damaged sensor or the
sensor wire may be broken or shorted. Example: if
the floor temperature is 77°F the resistance should
be 10,000Ω.
Note: Do not apply voltage to the floor sensor at any time.
This will damage the sensor.
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: 800-976-9817
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Product
Instructions
Programming
Note:
• Start up: Use the switch on the right side of the thermostat to power on or
power off the heating.
• Be careful! In this mode, your installation can freeze.
• The setting temperatures are kept in memory indefinitely.
Display Window
1. Operating mode menu (programming parameter)
2. Boiler in operation
3. Fan/AC operation
4. When displayed thermostat indicates the measured air temperature
or floor temperature if floor sensor is attached. If flashing attention is
required to one of the below:
• Actual floor temperature is below the minimum floor temperature
set in the thermostat parameters
• Actual floor temperature is above the maximum floor temperature
set in the thermostat parameters
• Floor sensor is short circuited
5. Measured temperature or set temperature
6. Programming parameter
1
3
6
2
°F
4
5
Operating Mode Menu
Press OK button to cycle through Operating Mode menus. When in desired Operating Mode press either the + or button to activate the flashing display. Desired temperature can be set by using the + or - button to increase or reduce
temperature setting.
COMFORT Operating Mode
°F
Places thermostat in comfort temperature operation
indefinitely.
REDUCED Operating Mode
°F
Places thermostat in reduced temperature operation
indefinitely. Returning to Comfort Operating Mode takes
thermostat out of Reduced Mode.
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: 800-976-9817
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Instructions
Parameter Menus
Press the OK key and hold for 7 seconds, then use - or + to select the installation parameter to be adjusted.
Press OK to toggle between the parameter setting or to edit the value.
If the value starts to blink you can use - or + keys to adjust this value.
Press - and + keys at the same time to reset this value to the factory default value. Once you have adjusted the
value press OK to validate this parameter value. When you have finished, use - or + keys to go to the “End” display
and then press OK key to exit installation parameter menu.
JO Parameter
°F
°C
Allows selection of either Celsius or Fahrenheit temperature display. Factory default is °F
J1 Parameter
Select CLd for thermostat control of cooling systems or Hot for heating applications. Factory default is Hot.
J4 Parameter
Select NC if using normally closed actuating motors or NO if normally open actuators are being used. Viega
Actuators (powerheads, zone valves) are normally closed and NC is the default setting.
J5 Parameter
Parameter allows exercising of system pump if system is inactive for a 24 hour period. Exercise duration is
one minute daily. Select PNp for pump exercising or no to disable this feature. Factory default is for pump
exercising no.
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: 800-976-9817
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Instructions
J6 Parameter
Select Air if thermostat is to control room ambient air temperature or Flr for floor temperature regulation. If Flr
regulation is selected the thermostat will ignore room ambient air temperature. If no floor sensor is connected to
thermostat, the thermostat will control the ambient air temperature. Air regulation is the factory default.
Ao Parameter
This parameter is used to calibrate the thermostats internal air sensor if there is a variance in temperature between
the actual room air temperature and the sensor reading.
The calibration must be done after one full day with the thermostat set at the same temperature in accordance
with the following description: Put a thermometer in the room at 60" distance from the floor (like the thermostat)
and check the real temperature in the room after one hour. When you enter in the calibration parameter, no is
displayed to indicate no calibration has been made.
To enter the value read on the thermometer press the OK key. The actual value xx.x must be blinking. Now enter
the real value with the - or + keys and validate your adjustment by pressing the OK key.
The message Yes should be displayed. The value will be stored in the internal memory. If you need to recalibrate,
return to the installation menu and press the OK key when the message Yes is displayed. Then the actual value
xx.x should be blinking.
The old value will be erased if you enter a new value. You could also erase the calibration by pressing - and +.
When the value blinks, the message no must be displayed.
Fo Parameter
This parameter is used to calibrate the thermostats external floor sensor if there is a variance in temperature
between the actual room floor temperature and the sensor reading. Calibration must be done as outlined above.
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: 800-976-9817
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Product
Instructions
FL Parameter
°F
Adjust to set the floor temperature low limit. Adjustment range is 41ºF to the “FH” setting. The default is 41ºF.
FH Parameter
°F
Adjust to set the floor temperature high limit. Adjustment range is 83ºF to 99ºF with 83ºF being the default setting.
J7 Parameter
Select rEG for proportional band regulation of thermostat or HYs for the thermostat to operate on a static
differential of 0.3ºK. If HYs is selected Cy, bp, and Cp parameters become non-functional and require no settings.
rEG is the factory default setting.
Cy Parameter
Proportional integral regulation time cycle value in minutes. This feature is only available if rEG regulation is
selected in the J7 parameter. The default setting is 15 minutes and is recommended for radiant slab heating
applications. Other possibilities are:
Oil Burner << 20 >>
Gas Burner << 10 >>
Zone Valve << 10 >>
Heat Pump << 20 >>
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: 800-976-9817
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Instructions
on Parameter
Minimal starting time in minutes. Adjustable from 0 to half of the cy parameter setting. Default is 02.
of Parameter
Minimal resting time between two heating cycles in minutes. Adjustable from 0 to half of the cy parameter setting.
Default is 02.
bp Parameter
°F
Sets the differential temperature of the proportional bandwidth with respect to how well insulated the house is. The
better insulated the house, the smaller the bandwidth temperature required. This feature is only available if rEG
regulation is selected in the J7 parameter. The default setting is 3.6°F. Other suggested settings:
Well insulated house << 2.7ºF >>
Poor insulated house << 7.2ºF >>
Cp Parameter
°F
Adjust setting to match the current load of the device being controlled by the thermostat. If the current draw of the
device being controlled by the thermostat is less than 2 amp. then adjust this value to match the value selected in
bp parameter. If the amp. draw is greater than 2 amp. set this value to the actual amperage. This function is only
available if rEG regulation is selected in the J7 parameter. The default setting is 0.0°F.
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: 800-976-9817
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Product
Instructions
CLr Parameter
While in this parameter press and hold the OK button until the thermostat restarts to restore all factory defaults to
thermostat.
End Parameter
Press and hold OK button to exit programming menu and resume normal thermostat operation.
Viega products are designed to be installed by licensed and trained plumbing and mechanical professionals who are familiar
with Viega products and their installation. Installation by non-professionals may void Viega LLC’s warranty.
This document subject to updates. For the most current Viega technical literature please visit www.viega.us.
Los productos de Viega están diseñados para ser instalados por plomeros y
mecánicos profesionales, capacitados y con licencia, que estén familiarizados
con los productos Viega y su instalación. La instalación realizada por personal no
profesional puede anular la garantía de Viega LLC.
Les produits Viega sont conçus pour être installés par des plombiers et
mécaniciens professionnels agréés et dûment formés qui en connaissent bien les
méthodes d’utilisation et d’installation. L’installation par des non-professionnels est
susceptible d’entraîner l’annulation de la garantie de Viega LLC.
Para ver las instrucciones en español visite www.viega.us
Pour obtenir des instructions en français visite www.viega.us
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: 800-976-9817
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