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The following procedures will expose electrical components.
Disconnect power between checks and proceed carefully.
Electrical shock can cause injury or death.
The air cleaner is powered by providing 120v, 60 Hz, 1-phase
electrical service to pigtail leads at field wiring compartment (with
knock-out holes) located at rear of power pack assembly. (See Fig.
15.)
1. Turn air cleaner off using ON/OFF rocker switch located on
front panel.
2. Remove power supply cover plate by removing front door and
2 screws holding assembly to top of air cleaner. (See Fig. 8.)
3. Make wiring connections inside junction box area (field
wiring compartment). Remove knock-out and use conduit or
other approved methods to supply input power. Connect
ground wire to clip.
4. Replace power supply cover plate and secure with screws
removed from step 2.
5. Replace door on front of air cleaner.
6. Air cleaner will operate when door is in place, ON/OFF rocker
switch is in "ON" position, and input voltage is present in
junction box. The following should be completed to supply
input power to air cleaner.
Step 5—Furnace Application
It is recommended to use EAC-1 and EAC-2 terminals when
provided by furnace circuit board. These outputs will provide 120
VAC whenever blower motor is energized.
Furnace circuit boards without EAC-1 and EAC-2 terminals must
use alternate methods to supply 120 VAC to air cleaner (via sail
switch, isolation relay, or optional electronic airflow sensor). Air
cleaner should only operate when blower motor is running.
This unit cannot be powered directly from blower motor
leads. Voltages can exceed 190 VAC (120-v motors). This
can double with 240-v fan coil motor.
Step 6—Fan Coil Application
If EAC-1 and EAC-2 terminals are provided by fan coil circuit
board, refer to fan coil data to determine voltage output. Most fan
coils do not provide 120v at these terminals. Alternate methods
may be needed to convert fan coil supply voltage to 120 VAC
input for air cleaner. A 240-VAC to 120-VAC step-down trans-
former (40 VA) will be needed in most application. Sail switch,
isolation relay, or optional electronic airflow sensor may also be
applied when needed.
Do not wire directly to multiple speed blower motor. Wiring
to multiple speed blower will damage power supply and void
warranty.
SYSTEM CHECKOUT
ADJUST THERMOSTAT SO THAT SYSTEM BLOWER IS
"OFF." After installing unit, switch ON/OFF rocker switch to
"ON" position. A bright red segment of rocker switch should be
visible.
Fig. 13—Bottom Installation on Upflow Furnace
Installation beneath furnace. Cleaner mounts horizontally, where
return air enters from below. Raise furnace by installing suitable wood
structure and install air cleaner.
A97066
AIR FLOW
Fig. 14—Horizontal Furnace
Mounted vertically in return duct as close to furnace as possible.
A97067
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