Thermostat Manuals & Support
Thermostat Manuals & Support
Click on a link or Scroll down to see pictures of all Thermostats
SunTouch SunStat Current Production Models |
SunTouch Previous Models (no longer in Production) |
Nuheat Thermostat Current Production Models |
Nuheat Previous Models (no longer in Production) |
SunTouch SunStat Current Production Models
- Manufactured by SunTouch's parent company Watts Radiant.
- The thermostats can have different letters after the model number and refer to packaging or market area; but all are the same in function, features and look
- All SunTouch Thermostats are in 2 pieces - the “power base” which mounts to the wall, and the “Faceplate” which mounts to the power base. These items are not interchangeable and are not sold separately. If you ever need to replace or return a thermostat, you need to replace both pieces – never just change the faceplate.
SunTouch SunStat® VIEW Touch Screen Thermostat! (programmable) 500750.
The SunStat View thermostat’s beautiful high resolution color display and interactive touch screen is the newest innovation from SunTouch. A Startup Wizard makes setup simple since the View arrives already programmed. Energy Efficient SmartStart™ technology is built-in and the View can even track and display your energy usage. Use with 120v or 240v SunTouch systems for the ultimate in floor heating control. Click here for More Information.
SunStat® PRO II (programmable) 500775
The new SunStat® Pro II will be replacing the SunStat® PRO (500670).
- Installation Manual & Operating Instructions [English] | [Espanol] | [French]
- Virtual thermostat interactive tutorial
SunStat PRO (programmable) 500670 (500670 -SC , -BB, -HW, -BW, etc)
Need a new one? Check out the newer SunTouch SunStat PRO model! click here.
OJ UCxx-9991 Thermostat Instructions (recalled for 240v applications in 2009) Installation Manual
The above 3rdgeneration FloorStats had the GFCI Test Button & Light on TOP of the thermostat (as shown in the diagram)
SunStat (non-programmable) 500675 (500675 -SC , -BB, -HW, -BW, etc)

Installation Manual & Operating Instructions [English] | [Espanol] | [French]
SunStat Relay II 500810


Installation Manual & Operating Instructions [English] | [Espanol] | [French]
SunStat Relay 500680

Installation Manual & Operating Instructions [English] | [Espanol] | [French]
SunStat Dial 500710 (non-programmable)
Installation Manual & Operating Instructions [English] | [Espanol] | [French]
SunTouch Previous Models
no longer in production (most recent to oldest)
SunTouch FloorStat 500650
120-VAC Models: 500650-120CS, -120B, -120BH, and -120BW & 240-VAC Models: 500650-240CS and -240B)
Each Side of the thermostat has a door that open to reveal programming buttons.
Need a new one? The direct replacement Model for all FloorStats is : SunStat PRO II – click here. Use the sensor that is already installed in the floor, simply turn power off at breaker and have qualified installer remove the entire unit from the wall and then replace with this new unit. Same box, same hole – just swap them out.
FloorStat 2nd generation, below had the GFCI test Light concealed behind the LEFT door, just under the ON/STANDBY switch – see below.
FloorStat 500650 – 1st generation – No Backlight, but other operations the same.
Need a new one? The direct replacement Model is :click here. Use the sensor that is already installed in the floor, simply turn power off at breaker and have qualified installer remove the entire unit from the wall and then replace with this new unit. Same box, same whole, same wiring – just swap them out.
SunTouch FloorStat 500650 Instruction Manual
FloorStat 500600 – The first programmable FloorStat
Need a new one? The direct replacement Model is :click here. Use the sensor that is already installed in the floor, simply turn power off at breaker and have qualified installer remove the entire unit from the wall and then replace with this new unit. Same box, same whole, same wiring – just swap them out.
FloorStat 500500
was the first FloorStat and was often used in conjunction with an intermatic timer to provide some time/date functions.
FloorStat 500500 Installation Manual
SunStat 500700-120 Dial Control
Need a new one? The direct replacement for the 500700 Model is : SunStat 500710 Dial – click here. Or Upgrade to the SunStat or the SunStat PRO. Use the sensor that is already installed in the floor, simply turn power off at breaker and have qualified installer remove the entire unit from the wall and then replace with this new unit. Same box, same hole – just swap them out.
FloorStat 500550-120 Dial Control
Discontinued in 2009, but there is limited remaining stock and will be sold until inventory is depleted.
Need a new one? The direct replacement Model is : SunStat 500710 Dial –click here. Or Upgrade to the SunStat or the SunStat PRO. Use the sensor that is already installed in the floor, simply turn power off at breaker and have qualified installer remove the entire unit from the wall and then replace with this new unit. Same box, same whole, same wiring – just swap them out.
SunTouch GroupStat
The First Generation Master/Relay Controls. Relay has a door that Slides “up” to reveal On/Off switch and GFCI test
These controls have been discontinued and replaced by the SunStat PRO & SunStat Relay.
BUT, a Relay CANNOT be replaced with the New SunStat Relay unless the MASTER unit is also replaced by the SunStat PRO.
Nuheat Thermostat Current Production Models
SOLO
Tempo (non-programmable)
Virtual thermostat interactive tutorial not needed– not programmable
>Harmony DV
- Installation Manual & Operating Instructions [English] | [Espanol] | [French]
- Virtual thermostat interactive tutorial
Nuheat Previous Models
no longer in production (most recent to oldest)
Need a new one? The direct replacement Model for all Nuheat Programmable Stats is the Nuheat Solo – click here. Use the sensor that is already installed in the floor, simply turn power off at breaker and have qualified installer remove the entire unit (not just the front face plate) from the wall and then replace with this complete new unit. Same box, same hole, same sensor – just swap them out.
Nuheat NTG-5110(110v) / NTG 5220(220v)
Each Side of the thermostat has a door that open to reveal programming buttons.
Nuheat NTG-5110 or -5220 (2005-2009) Installation Manual
The above 2nd generation NTG-series had the GFCI Test Button & Light on TOP of the thermostat (as shown in the diagram)
- Installation Manual & Operating Instructions [English]
- Electrician Instructions for power base (NG110-220)
- Thermostat Power Base Manual – NG110 | Thermostat Power Base Manual – NG220
- Virtual thermostat interactive tutorial
NTG-series 1st generation, below had the GFCI test Light concealed behind the LEFT door, just under the ON/STANDBY switch – see below.

Nuheat FTGF1P (110v) / FTGF2P (220v) – The first programmable Nuheat T-stat
Nuheat Regulator NDG6110/NDG6220
Non-programmable Dial control – No floor sensor was used.
Regulator Manual – NDG6110 &NDG6220
Need a new one? The replacement Model for the Nuheat Regulator is the Nuheat Tempo – click here. Turn power off at breaker and have qualified installer remove the entire unit (not just the front face plate) from the wall and then replace with this complete new unit. Same box &same hole.
If you want to add the accuracy and convenience of a floor sensor (included with the TEMPO but wasn't used with NDG) you can install the sensor in the floor – very carefully in a grout joint or from below; but don't damage your mat.
The easier solution is to set the Tempo to A mode; in “A” mode, the thermostat controls the ambient air temperature. This setting is useful if the floor temperature sensor is not installed.









































