MAHLE RTI RRC770 User Manual
Page 16
RTI Technologies, Inc.
15
September 28, 1999
Page 15
PROBLEM:
I turned a 30 lb. cylinder of new refrigerant upside down to fill
the Charging Cylinder with liquid. The Charging Cylinder didn't
fill and now the RRC770 won't recover from an A/C system.
SOLUTION:
The RRC770 has been overloaded with liquid refrigerant (see
Safety Precaution Section at the beginning of this manual).
... WARNING ...
IF A CYLINDER IS TURNED UP-SIDE-DOWN, THE
R R C 7 7 0 W I L L O V E R F I L L W I T H L I Q U I D
REFRIGERANT. THIS OVER FILLS THE SUCTION
ACCUMULATOR WITH LIQUID.
FROST ON THE OIL DRAIN ON THE REAR OF THE
RRC770 IS A GOOD INDICATION OF THIS
OCCURRENCE.
THIS SYMPTOM IS CAUSE FOR CONCERN AS LIQUID
REFRIGERANT WILL BE FORCED INTO THE
COMPRESSOR.
THIS CAN DESTROY THE COMPRESSOR AND WILL
VOID THE WARRANTY.
The safest method to remove the
excess liquid which has collected in
the Suction Accumulator is to drain
it from the Oil Drain on the back of
the RRC770 as follows:
Draw a deep vacuum (25 to 29 In. Hg.) on an empty cylinder and
connect it to the Oil Drain Valve. Open the cylinder valve and
the Oil Drain valve.
Close the valves and disconnect the cylinder after the liquid has
been drawn into the cylinder. This refrigerant can now be
recycled by the RRC770 following normal recycling procedures.
If the above suggested solutions do not solve the problem, call 800-468-2321,
ext. 259, and one of our technicians will help diagnose the cause. Please have
the unit available for reference, and be prepared to give us a detailed
description of the fault condition.