Audi Q7 e-tron quattro 4M - Refrigerant Circuit Diagram

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Refrigerant circuit
The refrigerant circuit of the AudiQ7e-tronquattro diers from
that of the AudiA3e-tron in that it includes additional compo-
nents for the heat pump.
These new components are:
• Valve block with valves V640 – V643
• Heat exchanger for heat pump operation
• 4non-return valves
649_046
Evaporator
Condenser Electrical AC
compressor
V470
Hybrid battery
heat exchanger
(chiller)
The two refrigerant circuit service connections (high and low
pressure) are located upstream of the AC compressor on the
low-pressure side and downstream of the valve block on the
high-pressure side.
• Internal heat exchanger
• Refrigerant expansion valve 1 N636
Expansion valve
N636
High-voltage heater (PTC)
Z115
Service connection
High pressure
Service connection
Low pressure
Internal
heat exchanger
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