MAHLE RTI AC800 User Manual
Page 7
RTI Technologies, Inc.
October 6, 1999
Page 6
... NOTE ...
The sight glass does not indicate the amount of refrigerant recovered;
Only the amount of refrigerant available to put into the vehicle A/C System
while in the CHARGE mode of operation.
Refrigerant is processed through a Condenser by the AC800. The actual
volume of refrigerant contained in the Condenser varies from job to job due
to pressure and temperature variations.
If a known amount of refrigerant has been introduced into the AC800 it may
not all be seen in the Charging Cylinder Sight Glass. This is normal and
nothing to be concerned about. Refrigerant has not been lost.
As Purge Pressure goes up, the rate of transfer of refrigerant from the
Condenser to the Charge Cylinder goes down. As Gauge Manifold pressure
goes down, the rate of transfer of refrigerant from the Condenser to the
Charge Cylinder goes down.
2.
Shut Red and Blue Hose Valves.
3.
Press top (ON) of rocker switch marked TEST RUN.
4.
Press top (ON) of rocker switch marked RECOVER RECYCLE.
The green COMPRESSOR ON Light will illuminate and liquid refrigerant will rise in the
Charging Cylinder Sight Glass. When the level is approximately 3 lbs, close the valve on the
refrigerant cylinder. Allow the AC800 to continue to run until the Low Side Gauge shows a
vacuum, and the green light goes out. This will empty the Blue Hose.
HINT:
Heating of the cylinder of refrigerant with an RTI Heat Belt (P/N 026-80092-00) will
speed the recovery process.
5.
Press bottom (OFF) of rocker switch marked RECOVER RECYCLE.
6.
Press bottom (OFF) of rocker switch marked TEST RUN.