MAHLE RTI AC800 - Manual (Page 14)

RTI Technologies, Inc.
October 6, 1999 Page 13
Note: Skip to step 5 if charging to an optional 30 lb DOT Refillable Cylinder via the short
Yellow Hose attached to the rear port.
4. Open Red and Blue Hose Valves.
5. Press top (ON) of rocker switch marked TEST RUN.
6. Press top (ON) of rocker switch marked CHARGE HIGH SIDE. Do not start the Vehicle's
Engine. Refrigerant will flow into the high side of the A/C System. Closely monitor the liquid
level as it lowers in the Charging Cylinder Sight Glass.
7. Press bottom (OFF) of rocker switch marked CHARGE HIGH SIDE as soon as the refrigerant
level drops to the sliding indicator.
8. Press bottom (OFF) of rocker switch marked TEST RUN.
The vehicle can now be started and the A/C system checked by monitoring Gauge pressures.
Always close Red and Blue Hose Valves before disconnecting hoses.
Evacuate the hoses per the preceding section "Hose Evacuation".
NOTE: All Refrigerant Recycling Machines charge Liquid, by law. The preceding is the
suggested method of charging liquid into an A/C system.
Some vehicle manufacturers may not provide a High Side connection. The above
instructions would have to be modified accordingly. Always follow the vehicle
manufacturer’s recommended service procedures.
EXTERNAL CYLINDER FULL LIGHT:
This Light will illuminate if the External Charging Cylinders Fill to capacity, approximately 25 lbs.
When this occurs, the External Cylinder must be emptied or changed.
Note: The AC800 will be unable to charge while this light is on, or if the Yellow Over Fill
Protection Cord is NOT connected to the 30 lb DOT Refillable Cylinder.