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FILTER CLEANING
Normally, the fresh air filter will need to be removed and cleaned every six months, but check it after the first three months following installation to
determine if more or less frequent cleaning will be necessary . After cleaning the filter inside the ventilator, clean off the screen at the fresh air intake
hood on the outside of the house . The most common cause of reduced ventilation is a clogged air intake hood .
To clean the ventilator filter
(see FIGURE 14):
1. Flex the outside edges of
the filter door to disengage
it from the housing .
2. Lift the filter door and
remove the filter from the
ventilator .
3. Use water to rinse the
filter and shake the excess
moisture off the filter .
4. Replace the filter in the
ventilator and press the
outside edges of the filter
door to snap it in place .
INTERNAL SCHEMATICS
FIGURE 15 – MODEL 8145 INTERNAL SCHEMATIC
BLOWER
RUN CAPACITOR
BRN
M
BLU
RED
GRN
CHASSIS
GROUND
L2-WHT
L1-BLK
BLK
GRN
GND
CHASSIS GROUND
FIGURE 14
CAPPED RED & WHITE WIRES ARE LOCATED INSIDE THE FILTER DOOR TO POWER
THE CONTROL (R & C TERMINALS) FROM THE POWER PCB ASSEMBLY. USE ONLY
IF THE VENTILATON CONTROLLER WILL NOT BE WIRED TO THE HVAC SYSTEM.
BLU
CON3
N
WHT
L
POWER PCB ASSEMBLY
FILTER DOOR
M
YLW
YLW
DAMPER
MOTOR
RED
ORG
ORG
CON2
CON3
WHT
90-2514
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