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62−11389
TABLE OF CONTENTS
PARAGRAPH NUMBER Page
SAFETY PRECAUTIONS 1−1.....................................................................
1.1 SAFETY PRECAUTIONS 1−1..............................................................
1.2 SPECIFIC WARNING AND CAUTION STATEMENTS 1−2.....................................
1.3 SAFETY DECALS 1−6....................................................................
UNIT DESCRIPTION 2−1..........................................................................
2.1 INTRODUCTION 2−1.....................................................................
2.2 GENERAL DESCRIPTION 2−1.............................................................
2.3 CONDENSING SECTION 2−7.............................................................
2.3.1 Engine 2−7...........................................................................
2.3.2 Engine Air System 2−7................................................................
2.3.3 Engine Controls: 2−7..................................................................
a. Engine Speed Control Unit (ENSCU) 2−7..............................................
b. Fuel/Speed Actuator (FSA) 2−7.......................................................
c. Engine Speed Sensor (ENSSN) 2−7...................................................
d. Engine Oil Pressure Switch (ENOPS) 2−7..............................................
e. Engine Coolant Temperature Sensor (ENCT) 2−7.......................................
f. Engine Oil Level Switch (ENOLS) 2−7.................................................
2.3.4 Generator (GEN) 2−7..................................................................
2.3.5 Compressor 2−7......................................................................
2.3.6 Unloaders 2−7.......................................................................
a. Major Working Parts 2−7.............................................................
b. Unloaded Operation 2−8.............................................................
c. Loaded Operation 2−9...............................................................
2.3.7 Compressor Switches, Transducers and Sensors 2−9......................................
a. Compressor Discharge Pressure Transducer (CDP) 2−9.................................
b. Compressor Suction Pressure Transducer (CSP) 2−9....................................
c. Compressor Discharge Temperature Sensor (CDT) 2−9..................................
d. Compressor Suction Temperature Sensor (CST) 2−10....................................
e. High Pressure Switch (HP1) 2−10......................................................
2.3.8 Condenser Coil 2−10...................................................................
2.3.9 Ambient Air Temperature Sensor (AAT) 2−10..............................................
2.3.10 Filter-Drier 2−10.......................................................................
2.3.11 Receiver 2−10.........................................................................
2.4 EVAPORATOR SECTION 2−10.............................................................
2.4.1 Evaporator Coil 2−10...................................................................
2.4.2 Electronic Expansion Valve (EVXV) 2−10..................................................
2.4.3 Heat Exchanger 2−10...................................................................
2.4.4 Compressor Suction Modulation Valve (CSMV) 2−10........................................
2.4.5 Evaporator Switches, Transducers and Sensors 2−10.......................................
a. Evaporator Outlet Pressure Transducer (EVOP) 2−10.....................................
b. Evaporator High Temperature Switch (1EVHTS) 2−10.....................................
c. Evaporator Outlet Temperature Sensor (EVOT) 2−10.....................................
d. Defrost Termination Temperature Sensor (1DTT) 2−10....................................
e. Return Air Temperature Sensor (1RAT) 2−10............................................
f. Supply Air Temperature Sensor (1SAT) 2−11............................................
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