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Air conditioning systems with refrigerant R1234yf - General information - Edition 07.2017
1 - Electrical air conditioner
compressor
❑ With control unit for air
conditioner compressor
- J842- and electrical air
conditioner compressor
- V470- ⇒ Heating, air
conditioning system;
Rep. gr. 87 ; Refrigerant
circuit (vehicle-specific
workshop manual).
2 - High-pressure safety valve
3 - Condenser
❑ With receiver and desic‐
cant cartridge.
4 - Receiver
❑ Part of condenser in this
case.
lk
5 - Refrigerant pressure send‐
er
❑ Vehicle-specific ver‐
sions ⇒ Heating, air
conditioning system;
Rep. gr. 87 ; Refrigerant
circuit (vehicle-specific
workshop manual).
6 - Service connection, high-
pressure side
❑ With sealing cap.
7 - Refrigerant line with internal
heat exchanger
8 - Refrigerant shut-off valve
❑ Different designations
⇒ Heating, air condi‐
tioning system; Rep. gr. 87 ; Refrigerant circuit (vehicle-specific workshop manual).
❑ Only on vehicles with battery cooling module for hybrid battery unit - AX1-
Note
The refrigerant shut-off valve is ac‐
tuated e.g. if battery cooling is nec‐
essary and no cooling of the pas‐
senger compartment is required
(open when not actuated).
9 - Expansion valve
❑ On evaporator in heater and air conditioning unit
10 - Front evaporator
❑ Evaporator in heater and air conditioning unit
11 - -Expansion valve with shut-off valve-
❑ Different designations ⇒ Heating, air conditioning system; Rep. gr. 87 ; Refrigerant circuit (vehicle-
specific workshop manual).
❑ On evaporator in battery cooling module
❑ Only on vehicles with battery cooling module for hybrid battery unit - AX1-
34
Rep. gr.87 - Air conditioning system
GETth
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