MAHLE RTI RHS900 - Manual (Page 17)

- 5.3 -
Operating RHS 900
C:\RHS Computer Files\Instructions\RHS\GB\642-40\0012B-01.doc 1997.09.11
RHS 900
Recovery/recycling
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Press process switch (pos. 12) RECOVERY.
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Open valves on service couplings (pos. 8).
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The compressor starts and the RECOVERY lamp (pos. 15) lights up.
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The recovery process now proceeds automatically until the A/C unit is
empty.
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The recovery process is finished when the RECOVERY lamp goes out.
Wait 5-8 minutes to ensure that the unit is completely empty.
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When the A/C unit is empty, the quantity of oil drained from the unit must
be measured. This can be done by opening the oil drain valve (pos. 5) and
allowing the oil to flow into the measuring beaker supplied. The A/C unit
must be filled with a corresponding amount of new oil. See “Oil charging”.
Follow the A/C unit supplier instructions and use only the type of oil
specified.
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At this point, if it is necessary to repair the A/C unit the service couplings
can be disconnected from the unit and servicing performed. If no repairs are
necessary, the evacuation process can be performed.
NOTE:
At the level indication Pos 12 it can before start of the recycling proces, be
noted the actual level of refrigerant. In this way, the recovered amount of
refrigant can be calculated after finishing the recovery process.