Valeo REVO-E, Workshop Manual

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REVO-E Heat pump 4 Function and functional schematics
4.5 Refrigerant circuit function schematic of the heat pump
The refrigerant circuit of the REVO-E heat pumps can be
reversed via a 4-way reversing valve. This changes the
function of the evaporator and the condenser, as they are
known from the REVO-E air conditioning. Die Verdampfer arbeiten im Wärmepumpen-Modus als
The evaporators work in the heat pump mode as a
condenser and the condenser works as an evaporator.
Additional components such as a modified pipe circuit,
various check valves and a further expansion valve
support the circulation reversal.
Fig. 412 Refrigerant circuit function schematic of the heat pump
Outer heat exchanger
Inner heat exchanger (passenger compartment)
Expansion valve
Filter dryer
Receiver
Check valve
4-way reversing valve
Compressor
(ADA 11123865_only)
Muffler
Solenoid valve
Sight glass
3-way distributor
Solenoid valve
Suction
sensor
High pressure sensor
pressure
Solenoid valve hot gas de-icing
Front box