Valeo REVO-E - Maintenance; Safety information

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REVO-E Heat pump 7 Maintenance
7 Maintenance
7.1 Safety information
Follow the safety information and conditions from
Chapter 1 (see 1.6 ).
The work described in the following requires proof of
the following qualifications:
See 1.6.1.
7.2 Versions of ADA
NOTE:
Most of the work described below is identical for HP and
HP + systems. Wherever there are differences, this is
explicitly stated. The information of some graphics apply
for both versions. These graphics are marked as "exem-
plarily".
7.3 Maintenance and upkeep
Details can be found in the REVO-E maintenance and
service plan (for the download link, see 1.5).
7.4 Inspection and maintenance
The rules in the evacuating and filling instructions for the
REVO-E apply (for the download link, see 1.5).
For work from this chapter where opening the refrigerant
circuit is required, carry out the following preparation and
follow-up work.
Preparation work
– Vehicle / air-conditioning system powered off (primary
switch / battery disconnection switch)
– If necessary, remove protective cover for the com-
pressor / frequency converter
– Open the side covers of the air-conditioning system
and prop up with rods (attached to cover)
– Remove the coil of the solenoid valve and replace with
permanent magnet
– Siphon refrigerant via high and low pressure connec-
tions on the compressor
– As soon as the system is open, always plug the open-
ings with designated stoppers (prevents water ab-
sorption via refrigerator oil)
Follow-up work
– Exchange filter dryers
– Evacuation the air-conditioning system
– Check tightness
ATTENTION:
The maximum pressure is 17 bar, the suction pres-
sure sensor will become damaged otherwise!
– Fill the air-conditioning system with R134a
– Remove the permanent magnet from the magnet
valve and install the coil
– Mount / close the cover
– Test functionality
– Inspect oil level after 10 minutes of running system.
7.4.1 Changing the fresh air filter
– Remove filter
– Clean filter area carefully
– Inspect heat exchanger for contamination / damages
– Insert filter
ATTENTION!
Note the position / direction of air flow exactly. Arrow
marks on the upper edge of the filter in the direction
of the heat exchanger.
7.4.2 Changing the filter dryer
The replacement intervals for the filter dryer are found in
the maintenance and service plan.
For removal and insertion, see Chapter 9.5.
Potential risk to health
and life!
Warning!
High voltage!
Caution
Mortal danger!
Warning!