Structural Maintenance
107
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 necessary.
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 damage to the blower.
Condenser Fan Blower
1. Loosen the condenser inlet ring (spinning) on
the condenser 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).
Evaporator Fan Blower
1. Loosen the inlet rings on the sides of the
blower housing.
2. Center the blower wheel in the blower housing
with equal overlap on both inlet rings. The
overlap on each ring should be approximately
0.15 in. (3.8 mm).
3. Tighten the hub bolts that hold the blower
wheel on the fanshaft.
4. Center the inlet rings in the blower orifices.
Tighten the inlet rings securely.
5. Check the radial clearance by passing a wire
completely around the circumference of the
inlet rings and the blower wheel.
6. Torque the blower hub bolts to 18 ft-lb
(24 N•m).
1.
Blower Wheel
3.
Alignment Mark
2.
Inlet Ring
4.
Edge of Inlet Ring
Figure 73: Condenser Blower Alignment
AEA749
1
2
3
4
1.
Check Clearance with a Wire
2.
Blower Housing Sides
3.
Inlet Rings
4.
Evaporator Blower
5.
Radial Clearance
6.
Equalize Blower Inlet Overlap
Figure 74: Evaporator Fan Location
AEA720
Содержание 002008
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Страница 25: ...Unit Description 25 Figure 3 Zone 1 Cool Zone 2 Cool and Zone 3 Cool Zone 3 Zone 2 Zone 1 AGA168 ...
Страница 27: ...Unit Description 27 Figure 4 Zone 1 Cool Zone 2 Cool and Zone 3 Heat Zone 3 Zone 2 Zone 1 AGA169 ...
Страница 30: ...Unit Description 30 Figure 9 Front View AJA920 ...
Страница 31: ...Unit Description 31 1 Access Panels 2 Defrost Damper Figure 10 Back View 1 2 ARA104 ...
Страница 114: ...Mechanical Diagnosis 114 ...
Страница 116: ...Electric Standby Diagnosis 116 ...
Страница 120: ...Remote Evaporator Specifications 120 ...
Страница 122: ...Remote Evaporator Maintenance Inspection Schedule 122 ...
Страница 128: ...Remote Evaporator Electrical Maintenance 128 ...
Страница 132: ...Remote Evaporator Refrigeration Service Operations 132 ...
Страница 134: ...Remote Evaporator Structural Maintenance 134 ...
Страница 136: ...Remote Evaporator System Diagnosis 136 ...
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