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OPERATION
AND SERVICE
Checking Air Cleaner Operation
WARNING: Electrocution Hazard.
Failure to follow this warning could result in personal injury or death.
Before installing or servicing system, always turn off main power to system. There may be more than one
disconnect switch.
a. Attach the Honeywell Enhanced Air Cleaner door to the cabinet. A magnet in the door (see Fig. 16) is used to
activate a safety switch in the power supply when the door is installed. The power supply will not energize the
air cleaner unless the safety switch is activated.
Fig. 16. Door Switch Magnet
b. Turn the HVAC system power on and adjust the thermostat to activate the system fan.
c. Turn the Honeywell Enhanced Air Cleaner power switch to on position.
d. The power indicator light below the Honeywell Enhanced Air Cleaner power switch will illuminate (see Fig. 17).
Fig. 17. Power Indicator
e. Check to ensure the light goes off when the Honeywell Enhanced Air Cleaner power switch is set to off, when
the blower goes off, or when the HVAC system power is turned off.
NOTE: Upon powerup for the FH8000A models, the light comes on for about 5 seconds and, if no ow is
detected, it goes off. If no air lter cartridge is detected, the ow sensor detects this and turns the
Honeywell Enhanced Air Cleaner off after about 7 seconds.
Startup and Operation
M28914
DOOR SWITCH MAGNET
POWER
INDICATOR
MODEL FH8000A
MODEL FH8000F
M28915A
TrueCLEAN™ Enhanced Air Cleaner 68-0308EFS—03
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