Valeo Citysphere S, Operating And Service Instructions

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Citysphere S MAINTENANCE
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5 MAINTENANCE
5.1. Safety instructions
The safety instructions and regulations in chapter 1.3 must be observed.
5.2. General
a) All work on the refrigerant circuit may only be carried out by qua-
lified personnel from duly authorized specialist repair shops.
b) For maintenance work on the refrigerant circuit special equipment,
tools and accessories are required and must be used.
c) Like all parts of the vehicle, the air conditioning system is subject
to constant stresses. The specified maintenance work must be
carried out regularly in order to ensure trouble free operation of the
system and avoid damage to the components.
d) Proper handling of the system and a complete record of all the
required scheduled maintenance are essential for acceptance of
possible warranty claims concerning damaged components
subject to maintenance.
e) To prevent moving parts in the refrigerant circuit from seizing up
due to resinification of the oil, the air conditioning system must be
switched on for approx. 10 minutes at least once per month when
it is not in regular use. Requirement:
(Minimum outside temperature > 12 °C or heated hall)
5.3. Maintenance and service
a) Regardless of the following schedule, all screw connections secu-
ring the rooftop air-conditioning system must be checked within
four weeks of using the system for the first time in order to ensure
that they are secure.
b) Even if the air conditioning system is not operated, individual com-
ponents are subject to wear due to normal ageing or stress due to
vehicle operation. All checks listed in the maintenance and ser-
vicing plan must therefore be performed regardless of the system
operating hours.
c) Even if hose connections do not leak, refrigerant may be lost
regardless of operating hours. However, a leak must be assumed
to exist somewhere in the system if relatively large quantities of
refrigerant are lost.
d) Slight contamination of evaporator and condenser fins is removed
with compressed air applied against normal direction of airflow.
Major contamination or greasy deposits must first be removed with
soapy water or a suitable cleaning solvent (not aggressive for cop-
per or aluminium) before cleaning with compressed air or a water
jet.
e) The receiver-drier must be replaced principally whenever work
has been performed on the refrigerant circuit.
f) The drain holes for rain water in the baseplate must be unobst-
ructed.
IMPORTANT
Under no circumstances may refrigerant be discharged into the atmos-
phere.