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 (if safely accessible). The most
common cause of reduced ventilation is a clogged air intake hood.
To clean the ventilator filter:
1. Remove the two screws securing the ventilator cover to the
housing and then remove the insulation.
2. Remove the filter from housing.
3. Use water to rinse the filter and then shake out the excess moisture
from the filter.
4. Replace the filter in the ventilator and reinstall the cover insulation
and the cover.
INTERNAL SCHEMATIC
FIGURE 15 – MODEL 8144NC INTERNAL ELECTRICAL SCHEMATIC
BLOWER
BRN
M
BLU
RED
GRN
CHASSIS
GROUND
L2-WHT
L1-BLK
GRN
GND
10 English
RUN CAPACITOR
BLK
MOTOR SPEED
CONTROLLER
WHT
WHT
BLK
CHASSIS GROUND
FIGURE 14 – REMOVING THE FILTER
KNOB
SCREW
BLU
BLU
CON3
N
L
POWER PCB ASSEMBLY
COVER
INSULATION
FILTER
M
YLW
DAMPER
YLW
MOTOR
CON2
CON3
90-2316
YLW
90-2317