Remove/install refrigerant pressure and temperature sensor

AR83.30-S-5435EF

Remove/install refrigerant pressure and temperature sensor

30.04.2019

Model

447 with engine 622

with code HH4 (THERMOTRONIC automatic climate control)

Model

447 with engine 622

with code HH9 (Air conditioner, automatic heater control)

Modification notes

09.04.2019

Operation step variant added.

Operation step 1.

09.04.2019

New operation steps added.

Operation step 2 and 3.

Shown on engine 622.9

1

Condenser

B12

Refrigerant pressure sensor

Shown on engine 622.8

1

Condenser

2

Electrical connector

B12

Refrigerant pressure sensor

 Danger

Risk of fire due to ignition of R1234yf refrigerant on hot components. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with escaped R1234yf refrigerant and when working on pressurized parts. Risk of explosion due to formation of ignitable refrigerant/air mixtures

Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.

AS83.00-Z-0007-01A

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

Topical note

Procedure for a damaged or leaky air conditioning system

AH83.30-N-0004-01A

Topical note

Protect air conditioning circuit and components from moisture when carrying out repair work

AH83.30-N-0005-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Notes on handling refrigerant R1234yf

AH83.30-P-0003-02A

 

Remove/install

1.1

Remove condenser (1).

Model 447 with engine 622.9
with code HH4 (THERMOTRONIC automatic climate control)
Model 447 with engine 622.9
with code HH9 (Air conditioner, automatic heater control)

AR83.30-S-6540EF

1.2

Discharge air conditioning system.

Model 447 with engine 622.8
with code HH4 (THERMOTRONIC automatic climate control)
Model 447 with engine 622.8
with code HH9 (Air conditioner, automatic heater control)

Model 447 with engine 622.8
with code HH4 (THERMOTRONIC automatic climate control)
with code HX1 (Refrigerant R-1234yf)
Model 447 with engine 622.8
with code HH9 (Air conditioner, automatic heater control)
with code HX1 (Refrigerant R-1234yf)

AR83.30-S-1760EF

2

Remove front bumper.

Model 447 with engine 622.8
with code HH4 (THERMOTRONIC automatic climate control)
Model 447 with engine 622.8
with code HH9 (Air conditioner, automatic heater control)

AR88.20-S-2000E

3

Release and disconnect electrical connector (2).

Model 447 with engine 622.8
with code HH4 (THERMOTRONIC automatic climate control)
Model 447 with engine 622.8
with code HH9 (Air conditioner, automatic heater control)

4

Remove refrigerant pressure sensor (B12).



Compressor oils (specification 362.1)

BB00.40-P-0362-01A

 Installation: Replace sealing ring and moisten with compressor oil.

 Refrigerant pressure sensor to refrigerant condenser or to refrigerant line for refrigerant condenser to refrigerant reservoir

*BA83.30-N-1008-01A

5

Install in the reverse order

 Air conditioning

Number

Designation

Model 447 with engine 622

BA83.30-N-1008-01A

Refrigerant pressure sensor to refrigerant condenser or to refrigerant line for refrigerant condenser to refrigerant reservoir

Nm

14