CSP
−
900RMM
−
2
MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 102
Revision 34
21-50-00
Table 101. Air
−
Conditioning System Troubleshooting (Cont.)
Fault
Ref. Section
Corrective Action
Probable Cause
Evaporator fan does not
operate.
Circuit Breaker
VENT EVAP
(CB18) is open.
Replace or reset the
VENT
EVAP
circuit breaker (CB18) as
necessary.
20
−
60
−
00
Open ground wire from
AC/Vent Fan switch to
GS 104
−
D ground stud.
Do a test on the wires for a
serviceable condition. Make
repairs as necessary.
20
−
60
−
00
Defective K100 power relay.
Replace the K100 power relay.
96
−
00
−
00
Defective evaporator fan
motor.
Replace the evaporator fan.
21
−
50
−
00
Defective wiring.
Do a test on the wires for a
serviceable condition. Make
repairs as necessary.
20
−
60
−
00
EARLY CONFIG
−
Condenser fan does not
operate.
Defective relay K8
−
3/4
condenser fan #1.
Replace the relay.
96
−
00
−
00
Defective relay K8
−
1/2
condenser fan #2.
Replace the relay.
96
−
00
−
00
Circuit breaker
CNDSR FAN
1
(CB56) is open.
Replace or reset circuit breaker
CNDSR FAN 1
(CB56) as
necessary.
96
−
00
−
00
Circuit breaker
CNDSR FAN
2
(CB26) is open.
Replace or reset circuit breaker
CNDSR FAN 2
(CB26) as
necessary.
96
−
00
−
00
Defective rotor select
A/C
VENT
fan switch S3.
Replace the switch.
96
−
00
−
00
Defective wiring.
Do a test on the wires for a
serviceable condition. Make
repairs as necessary.
20
−
60
−
00
Suction line or low pressure
line has ice on the other side
of the thermal bulb position.
Defective thermostatic
expansion valve (TXV).
Replace the Thermostatic
Expansion Valve (TXV).
21
−
50
−
00
Evaporator has frost on it.
Flooded evaporator.
Incorrect adjustment on
expansion valve (TXV).
Replace the Thermostatic
Expansion Valve (TXV)
21
−
50
−
00
Evaporator has ice on it.
Defective thermostatic
switch.
Replace thermostatic switch.
21
−
50
−
00
NOTES:
(1)
The IIDS automatically de
−
energizes the air
−
conditioning system if there is an engine failure while
in
−
flight. The message
AC DISABLE
will show on the alpha/numeric display. The electrical ground to the
air condition disable relay (K7
−
5) will be removed through the IIDS. It is necessary for the two engines to
be fully operational while in
−
flight for the air
−
conditioning system to operate.
(2)
The Aircraft On Ground relay (AOG) lets a single (right) engine operate the air
−
conditioning service and
other maintenance (ref. Section 95
−
30
−
00).
Summary of Contents for CSP-900RMM-2
Page 19: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual INTRODUCTION Chapter ...
Page 20: ......
Page 23: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 01 00 00 Introduction ...
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Page 223: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual DIMENSIONS AND AREAS Chapter ...
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Page 249: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual LIFTING AND JACKING Chapter ...
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Page 273: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 08 20 00 Leveling ...
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Page 277: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual TOWING Chapter ...
Page 278: ......
Page 281: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 09 00 00 Towing ...
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Page 287: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual PARKING AND MOORING Chapter ...
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Page 299: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 10 20 00 Mooring ...
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Page 311: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual PLACARDS AND MARKINGS Chapter ...
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Page 333: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual SERVICING Chapter ...
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Page 337: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 12 00 00 Servicing ...
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Page 401: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 21 20 00 Vent System ...
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Page 525: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual EQUIPMENT FURNISHINGS Chapter ...
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Page 627: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 25 60 10 Rescue Hoist ...
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Page 655: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual FIRE PROTECTION Chapter ...
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Page 711: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual FUEL SYSTEM Chapter ...
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Page 721: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 28 00 00 Fuel System ...
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Page 887: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual HYDRAULIC SYSTEM Chapter ...
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Page 925: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual LANDING GEAR Chapter ...
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Page 983: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual DOORS AND WINDOWS Chapter ...
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Page 1049: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual FUSELAGE Chapter ...
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Page 1063: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 53 00 00 Fuselage ...
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Page 1205: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 53 40 00 Tailboom ...
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Page 1235: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 53 55 00 Empennage ...
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Page 1259: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Chapter MAIN ROTOR ...
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Page 1503: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 63 20 00 Gearboxes ...
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Page 1579: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 63 22 00 Rotor Brake ...
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Page 1619: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual ANTI TORQUE ASSEMBLY Chapter ...
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Page 1685: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual FLIGHT CONTROLS Chapter ...
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Page 1927: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual POWERPLANT Chapter ...
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Page 1935: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 71 00 00 Powerplant ...
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Page 1985: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 71 20 00 Engine Mounts ...
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Page 2001: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 71 60 00 Air Intake ...
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Page 2033: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 71 70 00 Engine Drains ...
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Page 2043: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual ENGINE BLEED AIR Chapter ...
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Page 2053: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual ENGINE CONTROLS Chapter ...
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Page 2105: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual ENGINE EXHAUST Chapter ...
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Page 2109: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 78 00 00 Engine Exhaust ...
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Page 2121: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual ENGINE OIL Chapter ...
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Page 2125: ...CSP 900RMM 2 MD Helicopters Inc Rotorcraft Maintenance Manual Section 79 00 00 Engine Oil ...
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