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Konfort Series 700R Service Manual
while in all the other models is governed by the weight decrease
measured by the corresponding load cell. Even at the end of this phase,
the unit will check the residual pressure inside the system, in order to
determine if the conditions for the execution of the next step will exist.
Image 2.7 – Part of the hydraulic circuit involved into the UV injection
2.2.7 Refrigerant Injection
During this phase, the equipment activates the following electrical
components:
Pressure sensor (1);
LP electro-valves (only for 760R, 760R Bus and 780R BiGas);
HP electro-valves (only for 760R, 760R Bus and 780R BiGas);
EVCA1 electro-valve;
Refrigerant load cell (3).
The
refrigerant
injection
refrigerant amount, which has been initially set from the menu of the
unit, from the inner vessel into the A/C system of the vehicle, thanks to
the pressure difference. This transfer is performed simply thanks to the
opening of the EVCA1 electro-valve. The closure of this electro-valve is
managed by the microcontroller board of the unit according to the weight
decrease measured by the load cell located under the equipment's bottle.
Copyright © 2014 – TEXA S.p.A.
occurs
by
means
17
TEXA Technical Assistance
of
the
transfer
of
the
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