Opel Frontera UE. Manual - part 1236

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–65

Evaporator Assembly

Evaporator Assembly and Associated Parts

874R100005

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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 Panel
(9) Inst Panel Lower Reinforcement

SECTION

1A–66

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

4. Disconnect resistor (2) and electronic thermostat

connector (1).

874RY00025

5. Remove sill plate.

6. Remove dash side trim panel.

7. Remove inst panel lower reinforcement.

8. Disconnect drain hose.

9. 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.

10. 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.  

SECTION

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–67

Electronic Thermostat, Evaporator Core and/or Expansion Valve

Disassembled View

874R100003

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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

SECTION

1A–68

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

• Lift to remove the upper case.

874RY00027

8. Remove evaporator core.

874RY00028

9. Remove expansion valve.

• Tear off the insulator carefully.

• Remove the sensor fixing clip.

• Use a back-up wrench when disconnecting all

refrigerant pipes.

Installation

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

1. The sensor is installed on the core with the clip.

2. The sensor must not interfere with the evaporator

core.

3. When installing the new evaporator core, install the

thermo sensor to the evaporator core specified
position with the clip in the illustration.   

874RX014

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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.

6. Be sure to install the sensor and the insulator on the

place where they were before.

7. To install a new evaporator core, add 50cc (1.7 fl.

oz.) of new compressor oil to the new core.

8. Tighten the refrigerant lines to the specified torque.

Refer to Main Data and Specifications for Torque
Specifications in this section.       

9. Apply an adhesive to the parting face of the lining

when assembling the evaporator assembly.

Legend

(1) Evaporator Core
(2) Thermo Sensor
(3) Lower Case
(4) Upper Case

SECTION