Refrigerant Charging Procedure - Chery QQ Service Manual

The refrigerant should be stored at cool and dark places. Do not put it at places of
high temperature, such as the place directly under sunshine or close to fire or in the
car (including trunk).
Avoid to breath in smoke from the burning HFC-134a (R-134a) which is harmful for
health. The refrigerant must be charged at low pressure side, but absolutely not
allowed at high pressure side.
Charge is not allowed when the compressor is heated. Follow related specification in
operation instruction from manufactory when you fit the chargeg valve to the
refrigerant tank and make a small hole in it.
Pressure meters must be used before and during charge.
The refrigerant tank should be emptied before it is abandoned.
It is not allowed to heat the refrigerant to over 40
upside down during charge, otherwise the refrigerant will enter the compressor and
result in troubles, such as compressing liquid refrigerant, etc..
IV. Refrigerant Charging Procedure
1 make sure that the hoses are fitted properly after the system is evacuated (see the
left diagram).
2 connect the manifold pressure meter, then turn on the charge valve of refrigerant
tank, wash the charge pipe and turn on the manual valve at low pressure side.
Warning: make sure that the manual valve at high-pressure side is turned off fixedly.
3 start engine and keep the rotate speed 1000r/min, then turn on air conditioner.
4 charge the gas refrigerant into air conditioning system. At this time the
refrigerant tank should be kept straight.
5 after refrigerant tank is emptied, change a new one as described in the following
steps:
a. Switch the manual valve off at the low pressure side.
b. Replace the empty refrigerant tank with the newly charged one. When charge valve
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and put the refrigrerant tank