Recovery Procedure

Recovery Procedure

Note: Run the air-conditioning system for a few minutes before starting the recovery procedure as this will enable more refrigerant to be recovered. Turn the system off before starting the procedure.

1. Attach the red (high side) hose of the unit to the high side fitting of the system on the vehicle then fit the blue (low side) fitting to the low side on the vehicle.

   Note: Make sure that the Air conditioning system has pressure in it before beginning the recovery process; if there is no system pressure there is no refrigerant to recover. Also make sure that the oil drain valve is closed.

2. Open both the high and low side valves on the control panel.
3. Open the red GAS (vapour) valve and the blue LIQUID valve on the tank.
4. Turn on the MAIN POWER switch.
5. Press the RECOVERY key on the key-pad. The display shows that the unit in the RECOVER mode and AUTOMATIC cycle. After the compressor starts the display shows the weight of refrigerant being recovered. The compressor shuts off automatically when the recovery is complete and the display shows the message ‘CPL’ and the final weight of the recovered refrigerant.
6. Wait for five minutes and watch the manifold gauges for a rise above 0. If a rise occurs press the HOLD/CONT key. Repeat as needed until the system pressure holds for two minutes.

   Note: Drain the oil separator after each job.

7. Slowly open the oil drain valve and drain the oil into the oil catch bottle. When all the recovered oil has completely drained close the valve.
8. Replace oil lost during the recovery procedure by measuring the amount of oil in the catch bottle and adding the same amount of new oil to the system.

   Note: Dispose of the recovered oil in an approved way.

9. When the recovery tank is full the compressor is shut off and the display shows the message FULL.

Evacuating and Recycling the Refrigerant

1. Open the red (high side) and the blue (low side) valves on the unit and open the red GAS (vapour) valve and the blue LIQUID valve on the tank.
2. Enter the required time using the key-pad, press enter, the display shows the entered time in minutes.
3. Start the vacuum pump by pressing the VACUUM KEY again. The recycling process begins approximately five seconds after the vacuum pump starts and the message RECYCLE is displayed.

   Note: If the vacuum pump has run for ten hours or over without an oil change the message OIL flashes on the display. Change the pump oil and then press the SHIFT/RESET key and the zero key to reset the oil change timer to zero.

   The digital display counts down the evacuation time.

4. Check for non-condensibles after five minutes recycling. If the gauge needles are more than 10 psi apart purge the non-condensibles from the tank by opening the purge valve on the back of the unit and continue to bleed until both needles show the same reading.

   The vacuum sequence continues until the programmed time has elapsed at which point the message CPL is displayed.

5. If the moisture indicator turns green recharge with refrigerant.

   or

6. If the moisture indicator has not turned green replace the unit’s filter-drier, which is probably saturated.

   Note: Pressing any key at this point allows the next function to be accessed.

7. To recycle the refrigerant only without pulling a vacuum for an indefinite period of time press the SHIFT/RESET key and the RECYCLE key on the key-pad. Press the SHIFT/RESET key to cancel.
8. For vacuum only press the SHIFT/RESET key and the ENTER key and then press “1”. Run the vacuum pump as long as required and then press “1” or press SHIFT/RESET to cancel.