Honeywell Q539 Thermostat User Manual


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COOLING
CAUTION
If outside air or heat exchange medium (water) is
below 10AC (50AF), do not operate cooling.
Move the system switch on the Q539 to COOL and the
fan switch to AUTO. Move the cooling setpoint dial to about
6AC (10AF) below room temperature. Cooling equipment
should start and the fan should run. Change the setpoint to
about 6AC (10AF) above the room temperature. The cooling
equipment and fan should shut off.
FAN
Move the subbase switch to OFF and the fan switch to
ON. The fan should run continuously. Move the fan switch
to AUTO. In this position, fan operation is controlled by the
heating or cooling system control circuit.
Operate the entire system one complete cycle with
switches in each position before leaving installation. Turn
thermostat dial to the desired setting and set the system and
fan switches.
Automation and Control Solutions
Honeywell Honeywell Limited—Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Scarborough, Ontario
M1V 4Z9
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.
www.honeywell.com/yourhome
95-6486–9 G.H. Rev. 8-02
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