Berner ARISTOCRAT Series Handbuch für Installation und Wartung - Seite 6
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Seite drucken6. While supporting motor, loosen and remove two clips that hold motor
with a straight blade screw driver or ⁵ / ₁₆ " nut driver.
7. Remove motor.
8. Install motor in reverse order of removal.
C. Fan Wheel and Housing Removal -
Ambient and Electric Heated
1. Disconnect and lockout power to the unit. Remove unit cover hous-
ing by removing screws from the top and bottom of unit. Slide cover
housing away from blower assembly to remove. For electric heated
units, mark connections and disconnect four spade wire terminals from
electric heaters.
2. Loosen (do not remove) ⁵ / ₃₂ " Allen head set screw from hub of fan
wheel. Note: a T-handle Allen wrench may be inserted through hole in
fan housing and fan blade with semi-circle notch.
3. Remove four phillips head screws from
fan housing.
4. Remove fan and housing from motor shaft by sliding assembly away
from motor. After fan wheel is off of motor shaft, remove assembly by
rotating it away from blower assembly.
5. Reinstall in reverse order of removal.
D. Filter Replacement
1. Disconnect and lockout power to the unit. Remove unit cover hous-
ing by removing screws from the top and bottom of unit. Slide cover
housing away from blower assembly to remove.
2. Filter is located in cover housing. Remove wing nuts and clips that hold
filter. See Figure 8.
3. Remove and replace filter. Note: clean aluminum filters with water and
a mild detergent, rinse thoroughly.
4. Reinstall in reverse order of removal.
Note: do not force or over tighten wing nuts as they will thread through
the outside of cover housing.
E. Electric Heater Removal - Electric Heated
1. Disconnect and lockout power to the unit. Remove unit cover housing
by removing screws from the top and bottom of unit. Slide cover
housing away from blower assembly to remove. Mark connections
and disconnect four spade wire terminals from electric heater(s).
2. Loosen (do not remove) ⁵ / ₃₂ " Allen head set screw from hub of fan
wheel. Note: a T-handle Allen wrench may be inserted through hole in
fan housing and fan blade with semi-circle notch.
3. Remove four phillips head screws from fan housing.
4. Remove fan and housing from motor shaft by sliding assembly away
from motor. After fan wheel is off of motor shaft, remove assembly by
rotating it away from blower assembly.
5. Remove electric heater element from fan housing by removing three
screws with ¼" nut driver.
6. Reinstall in reverse order of removal.
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