Recovery Of R1234Yf Refrigerant - TEXA Konfort 700R Series Manual

Konfort Series 700R Service Manual
Image 2.9 – Part of the hydraulic circuit involved in the R134a recovery

2.3.2 Recovery of R1234yf refrigerant

Before proceeding
vehicle's A/C system, the equipment performs a preliminary check of
which refrigerant has been involved in previous service: if the service has
been done on an A/C system operating with R134a, then Konfort starts an
automatic clean-up process of the hydraulic circuit, in order to avoid
any possible contamination with the R1234yf, which will be employed in
the current service.
Once the clean-up will be completed, the equipment will start the
recovery phase, during which the following electrical components will be
activated:
Pressure sensor (1);
LP electro-valves;
HP electro-valves;
EVREC electro-valve;
Compressor CO;
Lower condenser fan (3);
EVREF2 electro-valves;
Refrigerant load cell (4).
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phase on Konfort 780R BiGas units
with the R1234yf refrigerant
20
TEXA Technical Assistance
recovery from the