MAHLE RTI TC2670 - Manual (Page 9)

RTI Technologies, Inc.
September 30, 1999 Page 8 8
... NOTE
...
Several audible changes may be heard during the recovery and recycling process.
Refrigerant flow through check valves causes a "sizzle-type" sound.
These changing "noises" are normal and nothing to be concerned about.
5. Press top (ON) of rocker switch marked RECOVER/RECYCLE.
The TC2670 will recover and recycle refrigerant from the A/C System, and then automatically cycle
off when a vacuum is sensed. This vacuum level can be seen on the Low Side Gauge.
! ! DO NOT TURN THE TC2670 OFF OR DISCONNECT HOSES ! !
A small quantity of Liquid refrigerant will probably still remain in the A/C System. This can be
detected by observing an increasing pressure reading on the Low Side Gauge.
As pressure rises to a preset level, the TC2670 will automatically cycle on to continue recovering
refrigerant. Allow this automatic On/Off sequence to repeat until the vacuum level remains constant
for at least 2 minutes.
6. Close Red and Blue Hose Valves.
7. Close High and Low Gauge Valves.
8. Press bottom (OFF) of rocker switch marked RECOVER/RECYCLE.
8. Press bottom (OFF) of rocker switch marked R12 POWER.
PURGE REQUIRED OR CYLINDER FULL LIGHT:
This Light will illuminate if either...
1) Pressure on the Purge Gauge approaches 250 psig: Go to Page 9
OR
2) The Charging Cylinder has filled to capacity: Go to Page 12