Operation - Rothenberger Rorec Pro A3 Bedienungsanleitung

lower than 35 bar/507.6 psi), after the HP cutoff blinks, then Press the "START" button to restart
the compressor.
When high pressure protection initiates, please determine the cause and deal with it before re-
starting the unit.
 The input valve of the refrigerant tank is closed- opening the valve will help solve the prob-
lem.
 The connecting hose between the recovery unit and refrigerant tank is plugged - close all
the valves and replace the connecting hose.
 The temperature of the refrigerant tank is too high, causing high pressure- cool the tank
down.
3.3

Operation

Refrigerant hoses exhaust:
Preparation:
lt's required to use hoses with ball valves on this recovery machine. Connect the hose correctly
and firmly.
1. Check the refrigeration device and make sure the gas valve and liquid valve are closed.
2. Check the refrigerant tank and make sure the gas valve and liquid valve are closed.
3. Open the gas valve and liquid valve of the manifold gauge.
4. Open the ball valves on the recovery machine outlet and valves on the hose connected to
the outlet.
5. Power on the recovery machine, the LCD screen will display the inlet and outlet pressures.
6. Turn the knob to "FAST".
Start:
7. Start the vacuum pump and let it run until the recovery machine's display (low pressure)
shows above -20inHg.
8. Close the ball valve of the vacuum pump hose which is connected to the refrigerant tank.
9. Turn the knob to "Close".
10. Connect the recovery machine outlet to the refrigerant tank with a hose.
20 ENGLISH