Instruction Sheet

IS-18909

CARRIER TO BITZER AC COMPRESSOR RETROFIT

MATERIAL
Order kit # IS18909 that contains the following parts:
Part No.

Description

Qty

7770442

COMPRESSOR SPECIAL SUPPORT

1

630062

RUBBER BUSHING

2

950494

BITZER COMPRESSOR

1

067349

TOP WIRE SUPPORT

1

950539

AC CLUTCH ASSEMBLY

1

5001775

CAP SCREW HEXS G500 M8-1.25X25 G12.9

4

506864

BELT-V BX100 (SET OF TWO)

1

950521

KIT UNLOADER

1

950493

HIGH SIDE HOSE

1

950489

LOW SIDE HOSE

1

501802

O'RING #16

1

501803

O'RING #20

1

950957

GASKET

2

CLAMP LOOP TYPE

2

474304

BOLT 1/4-20

1

500411

WASHER ¼

2

5001123

NUT 1/4-20

1

950504

TRANSDUCER

2

950030

SHRADER VALVE

3

N31320-07

Writer: ML

IS-18909
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950498

HIGH PRESSURE SWITCH

1

950500

ADAPTOR 7/16-20 X R134A HI-PRESS

1

950499

ADAPTOR 7/16-20 X R134A 13MM

1

5001338

SCREW M12X45LG

4

500967

WASHER BEL 1/2

4

500811

NUT STO 1/2

4

500197

SCREW 3/8X1LG

2

500265

NUT STO 3/8

2

500832

FT WASHER 0.41 ID

2

500086

SCREW1/2X1.5LG

2

500718

NUT STO 1/2-20

2

500211

FLAT WASHER 1/2 ID

2

564127

CONNECTOR, TYPE JUNIOR POWER TIMER

1

562853

TERMINAL, SOCKET AMP

2

563137

CABLE SEAL, (1.20-2.10) JPT - BLUE

2

561690

CONNECTOR SOCKET 2C(WP)

1

561578

SOCKET, FEMALE TERMINAL

2

561565

CABLE SEAL, PED CONN. - GREEN (20-18 GA)

2

560190

WIRE, 16 AWG, GXL, WHITE, 125 DEG

3

563292

WIRE, 16 AWG, GXL, ORANGE, 125 DEG

6

560786

SHRINK TUBING .5-.25ID BLACK

560673

WIRE, 16 AWG, GXL, BLK, 125 DEG

Writer: ML

0.5
4

IS-18909
Page 3 / 30

562228

BUTT SPLICE 16-14

6

560784

SHRINK TUBING .25-.08ID BLACK

562387

CONVOLUTED TUBING .25 ID BLACK SLT

5

509815

FIR TREE MOUNTING (FT7 TYPE)

4

504013

CABLE TIE MOUNT MIDDLE SIZE

4

504810

CABLE TIE MOUNT SMALL SIZE

2

504016

CABLE TIE, NYLON BLK (LIGHT-HEAVY)

14

562470

RESISTOR 1000 OHMS 2 W

1

562806

TERMINAL, SOCKET AMP (JPT) (20-18)

1

562499

SHRINK TUBING CLEAR

560815

RING TERMINAL #10 RED (22-18)

1

069481

BOTTOM WIRE SUPPORT

1

069450

MIDDLE WIRE SUPPORT

1

504379

POP RIVET DOME SS OE 3/16X1/4

4

504340

POP RIVET DOME SS OE 1/8X3/16

2

950332

FILTER DRYER

1

0.5

0.5

Other parts that may be required:
Part No.

680038

Description

LOCTITE 243 BLUE

Qty

AS REQ.

NOTE
Material can be obtained through regular channels.

NOTE
This bulletin only applies to the replacement of the Carrier AC compressor by a Bitzer compressor. Any
other AC system problems should be treated separately.

Writer: ML

IS-18909
Page 4 / 30

IMPORTANT NOTE
Anyone who maintains, services, or repairs motor vehicle air conditioners for of any kind must be
properly certified. Check the regulation applicable and make sure that the technician is certified before
proceeding with this bulletin.

PROCEDURE

DANGER
Park vehicle safely, apply parking brake, stop the engine. Prior to working on the vehicle, set the
ignition switch to the OFF position and trip the main circuit breakers equipped with a trip button.

REFRIGERANT REMOVAL
1. Locate the evaporator compartment (Figure 1).

FIGURE 1

2. Into the evaporator compartment, locate the C24
pin connector with the plug and the C24 socket
connector with the plug.
3. Remove the plug on both connectors and keep it
in a safe place (Figure 2).
4. Connect the C24 pin connector with the C24
socket connector.

FIGURE 2

Writer: ML

IS-18909
Page 5 / 30

5. Locate the front service compartment (Figure 3).

FIGURE 3

6. Into the front service compartment, locate the
C44 pin connector with the plug and the C44
socket connector with the plug.
7. Remove the plug on both connectors and keep it
in a safe place (Figure 4).
8. Connect the C44 pin connector with the C44
socket connector.

FIGURE 4

9. Remove all refrigerant (ref. PR10188-83 and
PR10114-271).
10. From the evaporator compartment, remove filter
dryer and discard it.

Writer: ML

IS-18909
Page 6 / 30

CARRIER AC COMPRESSOR REMOVAL