Opel Frontera UE. Manual - part 626

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–61

Pressure Switch

Pressure Switch and Associated
Parts

875RY00012

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Removal

1. Disconnect the battery ground cable.

2. Discharge and recover refrigerant.

• Refer to “Refrigerant Recovery in this section.

3. Remove radiator grille.

4. Disconnect pressure switch connector.

5. Disconnect pressure switch.

• When removing the switch connected part, the

connecting part should immediately be plugged
or capped to prevent foreign matter from being
mixed into the line.

Installation

To install, follow the removal steps in the reverse order,
noting the following point:

1. O-ring cannot be reused. Always replace with a new

one.

2. Be sure to apply new compressor oil to the O-ring

when connecting pressure switch.

3. Tighten the pressure switch to the specified torque.

Torque: 13 N•m (1.3kg•m/113 lb in)

Legend

(1) Pressure Switch Connector
(2) Refrigerant Line
(3) Radiator Grille
(4) Receiver / Drier
(5) Bracket Bolt

1A–62

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Evaporator Assembly

Evaporator Assembly and Associated Parts

874RY00024

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Removal

1. Disconnect the battery ground cable.

2. Discharge and recover refrigerant.

• Refer to Refrigerant Recovery in this section.

3. Remove glove box.

Legend

(1) Refrigerant Line
(2) Drain Hose
(3) Resistor and Electronic Thermostat Connector
(4) Electronic Thermostat

(5) Evaporator Assembly
(6) Glove Box
(7) Sill Plate
(8) Dash Side Trim Pad
(9) Inst Panel Lower Reinforcement

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–63

4. Disconnect resistor (2) and electronic thermostat

connector (1).

874RY00025

5. Disconnect drain hose.

6. Disconnect refrigerant line.

• Use a back-up wrench when disconnecting and

reconnecting the refrigerant lines.

• When removing the refrigerant line connected

part, the connecting part should immediately be
plugged or capped to prevent foreign matter from
being mixed into the line.

7. Remove evaporator assembly.

Installation

To install, follow the removal steps in the reverse order,
noting the following points:

1. To install a new evaporator assembly, add 50cc

(1.7 fl.oz.) of new compressor oil to the new core.

2. Tighten the refrigerant outlet line to the specified

torque.

Torque: 25 N•m (2.5kg•m/18 lb ft)

3. Tighten the refrigerant inlet line to the specified

torque.

Torque: 15 N•m (1.5kg•m/11 lb ft)

4. O-rings cannot be reused. Always replace with new

ones.

5. Be sure to apply new compressor oil to the O-rings

when connecting lines.  

1A–64

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Electronic Thermostat, Evaporator Core and/or Expansion Valve

Disassembled View

874RY00026

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Removal

1. Disconnect the battery ground cable.

2. Discharge and recover refrigerant.

• Refer to Refrigerant Recovery in this section.

3. Remove evaporator assembly.

• Refer to Evaporator Assembly in this section.

4. Remove the electronic thermostat sensor fixing clip.

Pull the sensor from the evaporator assembly.

5. Remove attaching screw.

6. Remove upper case.

7. Remove lower case.

• Slit the case parting face with a knife since the

lining is separated when removing the evaporator.

874RW034

Legend

(1) Lining
(2) Upper Case
(3) Electronic Thermostat
(4) Evaporator Core
(5) Lining: Case

(6) Attaching Screw
(7) Lower Case
(8) Evaporator Assembly
(9) O-ring

(10) Expansion Valve