Heating/Cooling System - Honeywell Q682B Installation Instructions Manual

Attach Thermostat Cover
Make sure the packing inserts in the thermostat base are
removed.
Place the two tabs on the upper edge of the cover into the
mounting slots in the thermostat base (Fig. 11).
Swing the cover downward until it catches at the bottom
of the base.
Fig. 11—Attach cover.
Set Tem perature Control Levers
The two levers on top of the thermostat control the low
and high temperatures for energy savings and comfort
control (Fig. 12). The lever on the left (blue mark) controls
the lower temperature. The lever on the right (red mark)
controls the higher temperature.
We recommend pushing the levers together at an appro­
priate temperature for either heat or cool until the occupant
programs the thermostat and makes the final temperature
selections.
Fig. 12—Temperature control levers.
Set Subbase Switches (If Applicable)
The subbase system switch controls system operation as
follows:
HEAT: Heating system is controlled by the thermostat.
Cooling system is off.
COOL: Cooling system is controlled by the thermostat.
Heating system is off.
OFF: Both the heating and cooling systems are off. If the
fan switch is in the AUTO position, the fan is also off.
The subbase fan switch controls fan operation as fol­
lows:
ON: Fan operates continuously.
69-0627B — 1
AUTO: Fan operates with the cooling equipment as
controlled by the thermostat or with the heating equipment
as controlled by the plenum switch. In electric heat, heat
pump and fan coil systems, the fan is controlled by the
thermostat in heating and cooling.
To switch positions, use thumb or index finger to slide
lever to the desired position. For proper circuit operation,
switch lever must stop in detent over the desired function
indicator mark.
CAUTION
A
Do NOT check operation by shorting across termi­
nals of system controls. This will damage the heat
anticipator.
HEATING-ONLY SYSTEM
Turn on power to the furnace.
Push both temperature setting levers together at least
5°F (3°C) above the room temperature. The main burner
should come on. The fan will start when the furnace heats
up.
Move both levers 5°F (3°C) below the room tempera­
ture. The burner should shut off.
Operate the entire heating system at least one complete
cycle.
I f thermostat fails any test, refer to the Troubleshooting
Guide in the Owner' s Manual.
Reset both temperature setting levers to the desired
temperatures.
COOLING-ONLY SYSTEM
Turn on power to the cooling equipment.
Push both temperature setting levers together at least
5°F (3°C) below the room temperature. The cooling equip­
ment will operate, and the fan will start. Allow for any time
delay that may be built into the compressor control circuit.
NOTE: To avoid compressor damage, do not operate the
system when outdoor temperature is below 50°F (10°C).
Refer to manufacturer recommendations.
Move both levers 5°F (3°C) above room temperature.
The cooling equipment and the fan should shut off.
Operate the entire cooling system at least one complete
cycle.
I f thermostat fails any test, refer to the Troubleshooting
Guide in the Owner' s Manual.
Reset both temperature setting levers to the desired
temperatures.

HEATING/COOLING SYSTEM

Turn on power to the furnace and cooling system.
Place the system switch lever to HEAT and fan switch
lever to AU O.
t
Push both temperature setting levers together at least
5°F (3°C) above room temperature. The main burner should
come on. The fan will start when the furnace heats up. (If
central electric heat, fan coil, or heat pump system, fan
starts immediately.)
Move both levers 5°F (3°C) below room temperature.
The burner should shut off.
6
Checkout
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