Step 10 Check Thermostat Operation After Programming And Installing - Honeywell CT3400 Programming And Installation Instructions

STEP 10 Check Thermostat Operation After Programming
And Installing
HEATING
Do not check heating system operation
by jumpering thermostat terminals at the
primary control, such as the gas valve,
zone valve, oil burner control. This will
damage the thermostat.
HEAT OFF COOL Move the system switch to HEAT and
the fan switch to AUTO.
ON AUTO
FAN
Press up arrow of key until the setting is
Temp
about 10° F [6° C] above room tempera-
ture. Heating should start and the fan
should run after a short delay (immedi-
M2472
ately if fan operation switch is set in
ELEC position).
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