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Air conditioning systems with refrigerant R1234yf - General information - Edition 07.2017
87 – Air conditioning system
1
Refrigerant circuit
⇒ “1.1 System overview - refrigerant circuit”, page 30
⇒ “1.2 General description - components of refrigerant circuit”,
page 36
⇒ “1.3 Possible complaints”, page 64
⇒ “1.4 Investigating leaks”, page 68
⇒ “1.5 Renewing components”, page 79
⇒ “1.6 Cleaning refrigerant circuit”, page 92
⇒ “1.7 Checking pressures with pressure gauge”, page 126
1.1
System overview - refrigerant circuit
⇒ “1.1.1 System overview - refrigerant circuit with expansion valve
and receiver”, page 30
⇒ “1.1.2 System overview - refrigerant circuit with restrictor and
reservoir”, page 32
⇒ “1.1.3 System overview - refrigerant circuit with electrically driv‐
en air conditioner compressor (with and without battery cooling
module)”, page 33
1.1.1
System overview - refrigerant circuit
with expansion valve and receiver
Note
♦ The arrows indicate the direction of coolant flow.
♦ The following diagram shows an example of a refrigerant cir‐
cuit with 2 evaporators and one internal heat exchanger.
♦ The layout of the refrigerant circuit is specific to the vehicle ⇒
Heating, air conditioning system; Rep. gr. 87 ; Refrigerant cir‐
cuit (vehicle-specific workshop manual).
HD = High-pressure side
ND = Low-pressure side
30
Rep. gr.87 - Air conditioning system
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