Structural Maintenance (Rev. 12/03)
85
3.
Check Distance A, the distance from the shoulder on
the solenoid to the center of the hole in the eye bolt.
Distance A should be 2.75 in. (69.85 mm) with the
solenoid de-energized.
4.
If necessary, adjust Distance A to the proper dimension
by loosening the locknut on the end of the solenoid
plunger and turning the eye bolt. Tighten the locknut
when Distance A is correct.
5.
Connect the damper link to the eye bolt.
6.
Energize the solenoid (apply 12 volts dc) and check the
damper blade to make sure that both edges contact the
damper housing. If necessary, adjust this by loosening
the solenoid mounting bolts and moving the solenoid.
Tighten the solenoid mounting bolts when both edges
of the damper blade contact the damper housing.
7.
Adjust the damper blade stops so they contact the edges
of the damper blade. This keeps the damper from stick-
ing closed.
8.
De-energize and energize the damper several times to
make sure that the damper operates correctly and seals
properly.
9.
Make sure the damper blade rests on the round stops
when the damper is open. Adjust the round stops if nec-
essary.
10. Install the damper assembly in the evaporator.
CONDENSER AND EVAPORATOR FAN
LOCATION
When mounting the condenser or evaporator fan and hub
assembly on the fanshaft, the blowers and inlet orifices must
be properly aligned for proper air flow and to prevent dam-
age to the blower.
Condenser Fan Blower
1.
Loosen the condenser inlet ring (spinning) on the con-
denser coil bulkhead.
2.
Slide the blower towards the inlet ring until it contacts
the inlet ring. This centers the inlet ring in the blower
orifice.
3.
Tighten the inlet ring securely.
4.
Slide the blower away from the inlet ring.
5.
Pass a gauge wire completely around the blower orifice
to check for uniform clearance.
6.
Spin the blower by hand to check for blower distortion.
7.
Position the blower so the edge of the inlet ring lines up
with the alignment mark on the blower.
8.
Torque blower hub bolts to 18 ft-lb (24 N•m).
1.
Blower Wheel
3.
Alignment Mark
2.
Inlet Ring
4.
Edge of Inlet Ring
Condenser Blower Alignment
AEA749
2
1
3
4
Содержание SB-190 30
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