Product Description
- Three different modes of operation: single stage heating， two stages of heating with a fan， or one stage of heating and one stage of cooling with a fan
- Two auxiliary sensors may be added
- Slab Sensor 079 is included to measure floor temperature
- Features: 7 day programmable schedule， backlight， cooling， fan， 4 hour battery-free clock backup， and optimum start
- Features: Outdoor and floor temperature display， permanent temperature hold， radiant floor heating， time clock， and 2-stage heating
Manufacturer Part Number: 521
The Programmable Thermostat 521 is designed for three different modes of operation: single stage heating， two stages of heating with a fan， or one stage of heating and one stage of cooling with a fan. Two auxiliary sensors may be added to measure the floor， outdoor or room temperature. A Slab Sensor 079 is included to measure floor temperature to protect the floor from overheating and enhance comfort. The programmable schedule supports either a 7 day or 24 hour schedule with 2 or 4 events per day. A permanent temperature hold button overrides the programmable schedule. An optional Adaptor Plate 012 is available to allow the thermostat to mount onto a single gang electrical box.
The Programmable Thermostat 521 is designed for three different modes of operation: single stage heating， two stages of heating with a fan， or one stage of heating and one stage of cooling with a fan. Two auxiliary sensors may be added to measure the floor， outdoor or room temperature. A Slab Sensor 079 is included to measure floor temperature to protect the floor from overheating and enhance comfort. The programmable schedule supports either a 7 day or 24 hour schedule with 2 or 4 events per day. A permanent temperature hold button overrides the programmable schedule. An optional Adaptor Plate 012 is available to allow the thermostat to mount onto a single gang electrical box.
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