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Power (green)

Heating (amber)

Operation

Overview

Mounting the Control

1. Make sure the power supply to the circuit is turned off at the circuit breaker.
2. Carefully press the wires back into the electrical box.
•  DO NOT use the control to push wires in, as this may cause connections to 

loosen and possible failure.

3. Use the Mounting Screws provided to secure to the electrical box and tighten 

by hand.

•  DO NOT over-tighten the screws causing the plastic to distort, as this may 

cause improper function of the control.

4. Press the Front Module onto the Power Module. Make sure both tabs at the 

top are completely engaged.

•  DO NOT install the Front Module with power applied on the Power Module, 

as this may cause improper function of the control.

5. Secure the screw at the bottom and replace the Screw Cover.
•  DO NOT over-tighten the screw causing it to strip. Turn it until snug.

On/Off and Reset

Pressing   will turn the thermostat on or off. This also resets the thermostat to 

clear an error or GFCI fault. See “GFCI Testing” and “Troubleshooting”.

Heating

The Heating light will show amber when the control is sending power to the 

floor heating system. There may be a delay of up to 3 minutes from any changes 

at the thermostat.

GFCI Testing

The GFCI (Ground Fault Circuit Interrupter) in this control must be tested when 

installation is finished and once each month.
1. Make sure the control shows it is Heating. This may require temporarily 

increasing the Setpoint temperature on the Thermostat.

2. Press the 

GFCI TEST

 button. GFCI TRIP should be indicated on the control by 

a constant red light. There will also be a click sound, indicating power has 

been removed from the floor heating system. If either of these indications 

fail, turn off the control and replace it. Do not continue to use.

3. To reset the GFCI TRIP, press the   button off and back on.

Figure 2

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