© 2015
532_D - 02/15
11 of 20
A Watts Water Technologies Company
Heating Operation
Sequence of Operation
To change the heat temperature setting, push the
or
button to select a preferred
temperature setting. The Heat On symbol is shown on the display when the thermostat is
heating. The heat can cycle on and off /- 1.5°F (1°C) of the temperature setting.
The floor and air heating can be shut off by holding the
button until Set Room is Off.
To resume heating when the Mode is Off, press the
button to navigate to the Mode
setting, then press the
button to select Mode Heat. The thermostat will resume
heating at the last previously set temperature.
Air Temperature Only
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If there is only an air temperature sensor (no floor sensor), the thermostat operates to
control your desired air temperature.
Floor Temperature Only
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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
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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 heating. 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.
90°F (32°C)
Feels hot to the touch
80 to 85°F (26 to 30°C)
Feels warm to the touch
70°F (21°C)
Feels cool to the touch
40 to 45°F (5 to 7°C)
Feels cold to the touch
Suggested maximum for all floor
types other than wood.
Bathrooms and kitchens. Suggested
maximum for wood floors.
Rooms with large windows preventing
under heating in the evening.
Freeze protection for garages.
