MAHLE RTI TC2670 - Manual (Page 7)

RTI Technologies, Inc.
September 30, 1999 Page 6 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 TC2670. 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 TC2670 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. Press top (ON) of rocker switch marked R12 POWER.
3. Press top (ON) of rocker switch marked RECOVER RECYCLE.
4. Open Low Side Gauge Manifold Valve, Blue Hose Valve and refrigerant cylinder valve.
Observe the liquid refrigerant level rise in the Charging Cylinder Sight Glass and when at
approximately 3 lbs, close the valve on the refrigerant cylinder. Allow the TC2670 to continue to run
until the Low Side Gauge shows a vacuum. 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 R12 POWER.
7. Close Low Side Gauge Manifold Valve and Blue Hose Valve.