User Manuals Instruction Manual

3 of 8

A Watts Water Technologies Company

Heating Operation

Heating is available when the Mode is set to Heat. To change the heat temperature

setting, push the

button to select a preferred temperature setting for the

current schedule time period. The Heat On symbol is shown on the display when the

thermostat is heating.

To change the temperatures for the other time periods, enter the Set Temp menu by

pressing both the

and

buttons together, press Menu to locate the Set Temp menu,

and press PRGM to enter the menu.

Temperature Sensor Location

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The thermostat can operate the heating system based upon either an air

temperature sensor, a floor temperature sensor, or a combination of both the air

and floor temperature sensors together.

Air Temperature Only

If there is only an air temperature sensor (no floor sensor), the thermostat maintains

the desired air temperature.

Floor Temperature Only

If the air sensor has been disabled, the thermostat will only maintain floor temperature

and ignore air temperature. This operation is recommended for areas such as

bathrooms to ensure that tile floors are warm to the touch.

Floor and Air Temperature

If the air sensor is turned on and a floor sensor is connected, the thermostat will

maintain the desired air temperature as well as a minimum floor temperature.

This operation is recommended for areas with large windows that allow the sun

to shine into a room and keep it warm without the need for heat. This can allow

the floors to cool off during the afternoon. When the sun goes down, it can take

a long time for the floors to get warm again. This may cause the room to cool off

too much in the early evening. A floor minimum setting can help with this condition

by maintaining a floor minimum temperature. Keep in mind the floor minimum

temperature will override the air temperature, and if set too high, may overheat

the room.

This operation is also recommended for rooms with hardwood floors. Setting floor

minimum and maximum temperatures is a way of enhancing the comfort of the

living space while protecting floor coverings.

Mode Button Operation

Press the Mode button to select Heat, Cool, or Off operation. The thermostat

must be configured for heat/cool/fan operation in order for the cooling operation

to be available.