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Blower Assembly Service (Dealer Only)
To Remove Blower Assembly (figure 33)
WARNING
Electric Shock Hazard.
Can cause injury or death.
Disconnect all remote electrical power
supplies before servicing. Unit may
have multiple power supplies.
Unit must be connected to a grounded
power supply in accordance with na-
tional and local codes.
1. Unplug the HRV/ERV and open the service door.
2. Remove core.
3. Remove
¼
inch sheet metal screws on front lip of cabi-
net.
4. Remove two Phillips head screws on right side panel.
5. Remove
¼
inch sheet metal screws securing electrical
box to blower divider panel.
6. Remove ground wire and black and white wire from cir-
cuit board leading to the motor, and pull wires to re-
move from the electrical box.
7. Remove assembly (blower, motor, blower panel) by
sliding left and down.
To Assemble Blower Assembly
Follow the above steps in reverse order.
IMPORTANT
Note motor rotation before disassembling the motor
assembly. Mark rotation on blower divider panel
with a marker.
T
1. Remove both blower end caps by applying pressure.
2. Remove blower wheels by loosening Allen screw on
motor shaft.
3. Remove nuts from motor through bolts".
Ensure motor is replaced with proper rotation. The blower
wheels are designed to scoop" air and discharge towards
the blower outlets.
To Assemble Motor
Follow the above steps in reverse order.
1
2
3
4
6
5
7
Figure 33. Removing Blower Assembly
1
2
3
2
1
Figure 34. Replacing Motor
