MAHLE RTI TC670V - Manual (Page 20)

RTI Technologies, Inc.
February 5, 1996 Page 17
PROBLEM: I turned a 30 lb. cylinder of new refrigerant up-side-down to pre-charge the
Charging Cylinder with liquid. The Charging Cylinder didn't fill and now the
TC670 won't recover from an A/C system.
SOLUTION: The TC670 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
T C 6 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
TC670 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 TC670 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 TC670 following normal
recycling procedures.
If the above suggested solutions do not solve the problem, call the phone number shown on the
Serial Label on the rear of the machine and one of our technicians will help diagnose the cause.
Please have the Serial Number available for reference.