Cat Electrical 797 Truck Heater and Air Conditioning Electrical Circuits Electrical System Schematic

RENR2686 November 2000

797 Truck Heater and Air Conditioning Electrical Circuits 5YW1-UP

©2000 Caterpillar All Rights Reserved

Printed in U.S.A.

20A

112-CK27 PU-12

RENR2680

RENR2680

11 125-J400 OR-12

J-C13 8N1519

RENR2680

14

E-C1 9X0146

COND MOTOR 1 1463506

EC-C2 3E3361 593-EC8 GN-14 200-EC4 BK-14 CONN 26 J-C33 EC-C6 1552269 3E3364 1 2 CONN 25 J-C23 EC-C4 1297163 1297164 1

WH/RD-14 BK-14

COND MOTOR 2 1463506

EC-C3 3E3361 2 593-EC7 GN-14 1 200-EC3 BK-14 EC-C1 9X1054

521-EC6 YL-14 200-EC2 BK-14 125-EC5 OR-12

1 5 2 4 3

MOTOR

WH/RD-14 BK-14

85

87a 87

86

30

J-C14 7X6222

K-C2 3E7996

614-K52 PU-16 614-K75 PU-16 R982-K45 YL-16 RENR2683 R982-K36 YL-16 520-K58 WH-16 521-K7 YL-16 521-K59 YL-16 RENR2684

CONN 23 24 PIN

200-K37 BK-16

A B 1 2 3 4 5 6 C D

2 3

AC ON SW 1701304

CONN 35 40 PIN

MOTOR

J-C10 3E6286 521-J292 YL-16 515-J169 GY-16 516-J170 GN-16 517-J171 BU-16 518-J172 OR-16 200-J352 BK-16 124-J290 GN-14

CONDENSER RELAY 3E5239 CONDENSER GP 156-3581

521-J403 YL-14

200-EC1 BK-12 J-C18 EC-C5 1297164 1297163 1 CONN 24

2 1

124-J290 GN-14

E-C2 8N1520 CONN 22 12 PIN

RENR2680

112-CK26 PU-12 15A AC BREAKER 3T3643

200-J386 BK-16 200-J344 BK-14 200-J341 BK-16 200-J337 BK-14 200-J335 BK-14 200-J244 BK-14 200-J353 BK-16 REAR CAB GROUND BOSS 2 8X4711

200-J352 BK-16 200-J199 BK-14 200-J236 BK-14 200-J449 BK-12

124-E29 GN-14

125-E53 OR-12

AC CONDENSER BREAKER 6T3644

K-C1 1130580 5 1 2 3 4 20 6

B

124-K8 GN-14 521-K7 YL-16 515-K3 GY-16 516-K4 GN-16 517-K5 BU-16 518-K6 OR-16 200-K20 BK-16 124-K81 GN-14

200-K20 BK-16 200-K31 BK-16 200-K37 BK-16

124-K81 GN-14

6 5 4 3 2

520-K58 WH-16

200-K32 BK-16 200-K33 BK-16 200-K34 BK-16 200-K35 BK-16

BLOWER SW 1570217

RENR2680

200-K38 BK-16 200-K25 BK-16 200-K37 BK-16 124-K80 GN-14 124-K8 GN-14

RENR2680 RENR2680

JUNCTION BLOCK 21 TERM J-C17 1153082 12 521-J403 YL-14 11 521-J292 YL-16 10 521-J402 YL-16 J-C29 155-2273 P-C5 1130581 521-P22 YL-14 522-P16 WH-14

CN-C4 3E6287

35 25

J-C51 9X7148

CN-C2 9X7147 35 25

521-CN37 YL-16 522-CN30 WH-14

521-J402 YL-16 522-J293 WH-14

CONN 8 40 PIN

CONN 57 40 PIN

515-J169 516-J170 517-J171 518-J172 522-J293

GY-16 GN-16 BU-16 OR-16 WH-14

H-C3 3E-3381 1 3 4 6 5

515-H2 GY-14 516-H19 GN-14 517-H20 BU-14 518-H5 OR-14 522-H7 WH-14

CONN 38 6 PIN

522-H7 WH-14 200-H12 BK-14

200-H11 BK-14 RENR2680 518-H5 OR-14 517-H20 BU-14 516-H19 GN-14 515-H2 GY-14

BLOWER MOTOR RESISTOR 1259740

T¡

THERMOSTAT SW 3E5464

515-H3 GY-14 BLOWER MOTOR 3E6392

H-C2 3E3360 515-H3 GY-14 200-H13 BK-14

1 2

WH/RD-14 BK-14

MOTOR

Media Number

797 Truck Electrical System Schematic Titles

CONDITIONER GP 137-2134

P-C31 3E3361 521-P22 YL-14 513-P31 OR-14

1 2

P-C32 3E3361 513-P32 OR-14 522-P29 WH-14

ARC SUPPRESSOR 1068704 1 2 AC CLUTCH SOL 7N4287

P-C33 3E3361 522-P16 WH-14

513-P33 OR-14 522-P30 WH-14

AC HI LOW PRESS SW 1145333 BK-18 2 3 BK-18 1

1 2

BK-18 BK-18

RENR2570

797 Truck Electrical System

RENR2680

Power Distribution and Ground Circuits

RENR2681

Starting and Start Aid Circuits

RENR2682

Integrated Brake Control Circuit

RENR2683

Vital Information Management System (VIMS)

RENR2684

Panel Lamp and Miscellaneous Circuits

RENR2685

Washer / Wiper and Turn Signal Circuits

RENR2686

Heater and Air Conditioning Circuits

RENR2687

Chassis Control Circuit

RENR2688

Transmission Control Circuit

RENR2689

Front Engine Control Circuit

RENR2690

Rear Engine Control Circuit

RENR2691

Master Engine Control Circuit

RENR2692

Schematic Tables and Symbol Definitions

RENR2686 797 TRUCK HEATER AND AIR CONDITIONING CIRCUITS