Filter
Top Products
69-0452—8
6
T841A HEATING-COOLING HEAT PUMP THERMOSTAT
CHECKOUT
Heating
Move the SYSTEM switch on the thermostat to HEAT and
the FAN switch to AUTO. Move the setpoint lever to about
10°F (6°C) above the room temperature. Heating should
start and the fan should run. Move the setpoint lever about
10°F (6°C) below the room temperature. Heating and fan
should shut off.
NOTE: To prevent compressor short cycling, a minimum-
off timer may be included to prevent the com-
pressor from starting for up to five minutes from
when the thermostat last turned the compressor
off, or from when the system first received power.
Cooling
CAUTION
Do not operate cooling if outdoor temperature is
below 50°F (10°C). Refer to manufacturer recom-
mendations.
Move the SYSTEM switch on the thermostat to COOL
and the FAN switch to AUTO. Move the setpoint lever
about 10°F (6°C) below the room temperature. Cooling
and fan should start. Move the setpoint lever about 10°F
(6°C) above the room temperature. Cooling and fan
should shut off.
Fan
Move the SYSTEM switch to OFF, and the FAN switch to
ON. The fan should run continuously. Move the FAN
switch to AUTO. In this position, the fan operates in
response to the thermostat in both heating and cooling.
69-0452—8 J.S. Rev. 5-97 www.honeywell.com/yourhome
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario M1V 4Z9
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422