MAHLE RTI TC2670 - Manual (Page 12)

RTI Technologies, Inc.
September 30, 1999 Page 11 11
Figure 4 Hose Evacuation
HOSE EVACUATION
It's important that Air not be introduced into the A/C System during a Charging procedure. If a Deep
Vacuum procedure was performed previously, the following Hose Evacuation Procedure is not required.
If the service valves on the hoses have been open, the following procedure must be performed.
To Evacuate Hoses, refer to Figure 4 and follow these steps:
1. Close Red and Blue Hose Valves.
2. Open High and Low Gauge Valves.
3. Press top (ON) of rocker switch marked R12 POWER.
4. Press top (ON) of rocker switch marked RECOVER/RECYCLE.
5. Let the TC2670 run until a vacuum is seen on the Low Side Gauge.
6. Turn High and Low Gauge Valves to OFF.
7. Press bottom (OFF) of rocker switch marked RECOVER/RECYCLE. All Air has now been
removed from the Hoses.
7. Press bottom (OFF) of rocker switch marked R12 POWER.
8. Vent any Non-condensable Gas as described in the previous section.