Remove/install the air conditioning's high-pressure switch (roof equipment)

AR83.50-T-5070AB

Remove/install the air conditioning's high-pressure switch (roof equipment)

06.06.2019

Model

NMB671.030

with code HKC (Sütrak AC 353 air conditioning without roof heater)

except code HKA (Konvekta ACX 602 air conditioning with roof heater)

1

Protective tubing

2

High pressure pipe

S/HP

High pressure switch

 

Remove/install

 Danger

Risk of explosion caused by welding or soldering work on closed air conditioning system. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with liquid refrigerant.

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 areas. Carry out repair work on the air conditioning system circuit only after the system has been drained.

AS83.00-Z-0001-01A

Topical note

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

AH83.30-N-0005-01A

Topical note

Procedure for a damaged or leaky air conditioning system

AH83.30-N-0004-01A

Notes on handling refrigerant R134a

AH83.30-N-0003-01A

1

Drain air conditioning system

AR83.30-T-1780AB

2

Cut through cable tie on protective hose (1)

 Installation: Fit new cable ties.

3

Disconnect electrical connector for high-pressure switch (S/HP)

 The electrical connector is located in the protective hose (1).

4

Detach high-pressure switch (S/HP) from high-pressure line (2)



Compressor oils (specification 362.0)

BB00.40-P-0362-00A

 Installation: Use new sealing rings. Before installing, moisten sealing rings with compressor oil in accordance with Specifications for Operating Fluids.

5

Install in the reverse order

6

Fill air conditioning system (liquid)

AR83.30-T-1777AB

7

Perform function test



Air conditioning system - function check

AP83.00-T-8352AB