Air Conditioning Electrical System (324d,325d,328d,329d,330d,336d,340d,345c,345d,349d,365c,374d,385c,390d And M325d).pdf

RENR7258-06 August 2011

Electrical Symbols Table Hydraulic Symbols (Electrical)

G Transducer (Fluid)

Transducer (Gas / Air)

Pressure Switch (Adjustable)

Pressure Switch

M

Generator

Electric Motor

Electrical Wire

Temperature Switch

Electrical Symbols (Electrical)

Schematic

T

324D, 325D, 328D, 329D, 330D, 336D, 340D, 345C, 345D, 349D, 365C, 374D, 385C, 390D and M325D Excavators Air Conditioning Electrical System

Pressure Symbol

Temperature Symbol

Flow Symbol

Level Symbol

Wire Number Identification Codes Electrical Schematic Example

Hydraulic Schematic Example Current Standard

Current Standard Harness identification code This example indicates wire 135 in harness "AG".

Wire Circuit Number Identification

Wire Color

325-AG135 PK-14 325-PK Circuit Identification Number

Wire Color

Wire Gauge

Previous Standard Wire Color

Wire

325-PK-14 B Circuit Number Identification

(EXAMPLE VALVE)

12 Page,B/W

Cat, Caterpillar, their respective logos, “Caterpillar Yellow” and the Power edge Printed in U.S.A. trade dress, as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.

RENR7258-06

SAFETY.CAT.COM

© 2011 Caterpillar All Rights Reserved

A

Wire Gauge

7

4

5

1

BU/OR-20 PU/RD-20 PK/BK-20 S-BU-20 PU/GN-20 WH/RD-20

L-GN/YL-20 WH/YL-20 BR/OR-20

CONN A

BR/OR-20 WH/YL-20 L-GN/YL-20

23 24 25 26 27 28 171819202122

F

CONN AA

17 18 19 20 21 22 23 24 25 26 27 28

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

CONTROL PANEL AS. 235-8872 293-1136

9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 BK-20 GY/YL-20 PK/GN-20 BK/YL-20 GY/BU-20 OR/BU-20

2

3

1

BU/OR-20 PU/RD-20 PK/BK-20 S-BU-20 PU/GN-20 WH/RD-20

BR/WH-20 BU/BK-20 BR/BK-20 PK-20 BK/RD-20 L-GN/RD-20 PU/YL-20 BK/GN-20

BK/GN-20 PU/YL-20 L-GN/RD-20 BK/RD-20 PK-20 BR/BK-20 BU/BK-20 BR/WH-20 BK-20 GY/YL-20 PK/GN-20 BK/YL-20 GY/BU-20 OR/BU-20

F

6

1 2

DETAIL OF CONN AA

DETAIL OF CONN JJ

1 2

1 2

DETAIL OF CONN HH

DETAIL OF CONN GG

DETAIL OF CONN A

L-GN/YL-20

S-BU-20

BR/OR-20

BR/OR-20

WH/RD-20 L-GN/YL-20

PU/GN-20 WH/YL-20

WH/RD-20

PU/GN-20 BU/OR-20 PU/RD-20

CONN C

WATER TEMP SENSOR 245-7831

FROST SENSOR 245-7835

RECIRC TEMP SENSOR 245-7815

CONN JJ

CONN HH

CONN GG

1 2

PK/BK-20

CONN CC

DETAIL OF CONN C

DETAIL OF CONN CC

CONN J

DETAIL OF CONN DD

OR/BU-20 GY/YL-20

GY/YL-20 BK/YL-20

OR/BK-20

GN/BU-20

OR/BK-20 BK/RD-20

BK-20

BK/RD-20

BK-20

OR/BU-20

CONN G

CONN H

GY/YL-20 GY/BU-20

GY/YL-20

GN/BU-20

E

5

BR/WH-20

E

BK/GN-20 PU/YL-20 L-GN/RD-20 BK/RD-20 PK-18 BR/BK-20 BU/BK-20 BR/WH-20 GY/YL-20 PK/GN-20 BK-20 BK/YL-20 GY/BU-20 OR/BU-20

CONN B

4

GY/YL-20 PK/GN-20

S-BU-20

CONN BB

PK/BK-20

DETAIL OF CONN G

1 2

PU/RD-20 BU/OR-20

3

2

1 2

WH/YL-20

DETAIL OF CONN B

BU/OR-20 PU/RD-20 PK/BK-20 S-BU-20 PU/GN-20 WH/RD-20 BR/OR-20 WH/YL-20 L-GN/YL-20

DETAIL OF CONN BB

18

OR/BU-20

1 2 3 4 5 6 7 8 9 10

BK/YL-20 GY/BU-20

L-GN/RD-20

DETAIL OF CONN D

1 2 3 4 5 6 7 L-GN/RD-20 GY/YL-20

GY/YL-20

MOTOR OR/BU-20

17

DETAIL OF CONN EE

AMBIENT TEMP SENSOR 235-8874 BK/RD-20

DETAIL OF CONN E

GY/YL-20

CONN E

CONN EE

DETAIL OF CONN F

3

2 4 1

16

DETAIL OF CONN FF

2 1

OR/BU-20 GY/YL-20

4 3 2 1

GN/BL-20 OR/BK-20 BK/RD-20 BK-20

DETAIL OF CONN KK

DETAIL OF CONN K

CONN D

CONN DD OR/BU-20 GY/YL-20 GN/BU-20 OR/BK-20 BK/RD-20 BK-20

L-GN/RD-20

7 6 5 4 3 2 1 CONN KK

CONN K

OR/BU-20 GY/YL-20 GN/BU-20 OR/BK-20 BK/RD-20 BK-20

1 2 3 4 5 6

D

PRESS.SW 196-1665 CONN F

CONN FF

RD-14 BK/WH-16 OR/BK-18

15

RD/GN-16 PK-18 BK-14

OR/BK-20

RD/BU-16

OR/BK-20

PK/BK-20

RD-18 BK-18

OR/BK-18

DETAIL OF CONN S

6

MOTOR

RD/WH-16 OR-16

COMPRESSOR GP 245-7779 245-7780 305-0325

CONN T

ACTUATOR 245-7813

OR/BK-20

OR/BK-20

D

WH/RD-20 PU/GN-20 PU/YL-20

GN/BU-20

BK-20

ACTUATOR 245-7817

WH/RD-20 PU/GN-20 PU/YL-20

5A

2

OR/BK-20

1

PK/GN-20

GY/YL-20

BK/YL-20

DETAIL OF CONN H

DETAIL OF CONN J

BK-20 PK/GN-20

BR/WH-20 GY/YL-20

BU/OR-20 PU/RD-20 PK/BK-20 S-BU-20 PU/GN-20 WH/RD-20 BR/OR-20 WH/YL-20 L-GN/YL-20

BU/BK-20 BR/BK-20

BK/RD-20 PK-20 BK/GN-20 PU/YL-20

GY/YL-20

BR/BK-20 BU/BK-20

1 2 3 4 5 6 7 8 9 10 11 12 13 14

PK/GN-20 BK-20

GY/BU-20

GY/YL-20

L-GN/RD-20

PU/YL-20 BK/GN-20 PK-18 BK/RD-20

OR/BU-20

BK/GN-20 PU/YL-20 L-GN/RD-20 BK/RD-20 PK-20 BR/BK-20 BU/BK-20 BR/WH-20 GY/YL-20 PK/GN-20 BK-20 BK/YL-20 GY/BU-20 OR/BU-20

GY/BU-20 BK/YL-20 GY/YL-20 BR/WH-20

S-BU-20

1 2

7 6 5 4 3 2 1

1 2 3 4 5 6 7 S-BU-20 PK/BK-20

CONN LL

CONN L

OR/BK-20

DETAIL OF CONN LL

DETAIL OF CONN L

1 2 3 4 5 6 7 8 9 10 11 12

10A

10A

C

15A

LIGHT OR/BK-18 BK/WH-16 RD-14 RD/GN-16 PK-18 BK-14 RD/WH-16 OR-16 RD/BU-16

MOTOR PU/RD-20 BU/OR-20 BK/GN-20

3 2 1

L-GN/RD-20

BK-16 OR-16 RD/WH-16

CONN S

GY/YL-20

CONN X1

CONN M

ACTUATOR 245-7817

7 6 5 4 3 2 1

C

7

CONN MM

1 2 3 4 5 6 7 GY/YL-20

CONN WW

CONN UU

CONN VV

CONN RR

PU/RD-20 BK/GN-20

DETAIL OF CONN M

4 2 1 3

CONN N

CONN NN

CONDENSER HI RELAY 196-1666

14

13

CLUTCH SOL RELAY 196-1666

11

12

CONDENSER RELAY 196-1666

BLOWER MAIN RELAY 196-1666

10

BLOWER MOTOR 245-7839

9

BLOWER CONTROL 245-7832

BK-14

8

BR/BK-20 3 4 1 2

CONDITIONER GP-AIR(BASIC) 229-9081, 316-8917

BK/BU-14

BU/BK-20

DETAIL OF CONN N

B

CONN T

RD-18 BK-18

COMPRESSOR GP 305-0325

15

OR/BK-20

L-GN/YL-20

OR/BK-20

OR/BK-20

RD/WH-16

BR/OR-20

OR/BK-20

10A

1 2 3 4 5 6 7 8 9 10 11 12

OR/BK-18 BK/WH-16 RD-14 RD/GN-16 PK-18 BK-14 RD/WH-16 OR-16 RD/BU-16

RD/BU-16

WH/YL-20

DETAIL OF CONN V

DETAIL OF CONN U

LIGHT

15A

RD/GN-16

3 4 1 2

DETAIL OF CONN UU

Item

DETAIL OF CONN VV

1 2 3 4 5 6 7 8 9 10 11 12 13

2 1 CONN S GN/BU-20

CONN X2

RD-18 NEG

MOTOR

CONDENSER GP(BASIC) 236-1907

A

BK-18

DETAIL OF CONN T

14

OR-16

DETAIL OF CONN W

BK-16

RD/WH-16

328D LCR Condenser

BK/WH-16

BK-20

OR-16

BU-18

BK-18 DETAIL OF CONN X2

DETAIL OF CONN X1

3 4 1 2

DETAIL OF CONN WW

14 15 16 17 18

7

6

5

RD-14

DETAIL OF CONN R

3 4 1 2

4

DETAIL OF CONN NN

PK/BU-14 3 4 1 2

1 2

POS

DETAIL OF CONN MM

MOTOR

CONDENSER GP(BASIC) 227-6838 245-7787

10A

12 Page, B/W

CONN P

CONN PP

MOTOR

RENR7258-06

BU/BK-20 BR/BK-20 BK-14 BK/BU-14

PK/BU-14 BK/BU-14

CONN R

1 2

4 1 3 2

RD-14 OR/BK-20 WH/YL-20 PK/BU-14

RD/BU-16 OR/BK-20 BR/OR-20 RD/WH-16

CONN V

4 1 3 2

OR-16 GN/BU-20 BK-20 BK/WH-16 4 1 3 2

OR/BK-20 0R/BK-20 L-GN/YL-20 RD/GN-16

OR-16 RD/WH-16 1 2

CONN U

4 1 3 2

BK-16 OR-16 2 1

POS NEG

CONN W

BU/OR-20

L-GN/RD-20

DETAIL OF CONN RR

Component Description Description Control Panel Assembly Control Panel Assembly (328D LCR) Water Temperature Sensor Frost Sensor Recirculation Temperature Sensor Actuator (Air Outlet) Actuator (Air Inlet) Actuator (Air Temperature) Blower Control Blower Motor Blower Main Relay Condenser Main Relay Clutch Solenoid Relay Condenser High Relay Refrigerant Condenser Refrigerant Condenser (328D LCR) Refrigerant Compressor Pressure Switch Ambient Temperature Sensor Air Conditioner Group Air Conditioner Group (328D LCR)

Part # 235-8872 293-1136 245-7831 245-7835 245-7815 245-7817 245-7813 245-7817 245-7832 245-7839 196-1666 196-1666 196-1666 196-1666 245-7787 236-1907 305-0325 196-1665 235-8874 229-8081 316-8917

3

B

BK/BU-14 2 1 PK/BU-14

DETAIL OF CONN P

DETAIL OF CONN PP

A

This Schematic is for the Air Conditioning and Heating System 324D, 325D, 329D, 330D, 336D, 340D, 345C, 345D, 349D, 365C, 374D, 385C, 390D, and M325D Excavators Part #: 235-8968 328D LCR Excavators Part #: 357-4103 2

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