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Section 3. Installing the 4500 Thermostat
3-9
Setting the Fan Control Pins
The three fan control pins in the center of the 4500 are used to control the
operation of the HVAC system’s fan. Using the jumper provided, you can
select whether or not the system’s fan should turn on with cooling and
heating, or turn on only with cooling. The operation of the fan depends upon
which two pins the jumper is installed on.
If you want the fan to turn on with cooling only, place the jumper provided
between pins 2 and 3.
If you want the fan to turn on for both heating and cooling, place the jumper
between pins 1 and 2.
JUMPER PLACED ON 1 and 2 = FAN ON WITH HEAT AND COOL
JUMPER PLACED ON 2 and 3 = FAN ON WITH COOL ONLY
1 2 3
FAN
CONTROL PINS
PLACE THIS JUMPER
ON FAN CONTROL PINS
SHOWN SET TO 01
After installation has been completed, replace the cover of the 4500
thermostat, reapply primary power to the system and continue
thermostat set-up in Section 4.
Phone announcements during the first minute of application of primary power to
the system or after exiting 4286 installer programming mode will yield
“temperature 00 (zero, zero)”
This is perfectly normal. Once the system has
reset itself, correct messages will be annunciated as called for in the
programming of the thermostat.