SetPoint 521 Programmable
Thermostat with Floor Sensor
The SetPoint 521 Programmable
Thermostat with Floor Sensor
(A3040521) 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 Floor Sensor (A3040079) is
included to measure floor tem-
perature 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 Adapter Plate
(A3040012) is available to allow
the thermostat to mount onto
a single gang electrical box.
Energy Saving Features
•
7-day Programmable Schedule
Additional Features
•
Optimum Start
•
Permanent Temperature Hold
•
Radiant Floor Heating
•
Two Stage Heating
•
Cooling
•
Fan
•
Backlight
•
Outdoor and Floor
Temperature Display
•
Time Clock
•
Four Hour Battery-free
Clock Backup
iii
SetPoint 521 Programmable Thermostat Installation and Operation Manual
