Commissioning - Rothenberger Rorec Pro A3 Bedienungsanleitung

„LP Cutoff" will be displayed. When LP ≥ 0 inHg you must press START to restart the suction
device.
LP2: (Auto shutoff with automatic restart)
if the inlet pressure is lower than -20inHg for 20 seconds, the unit will shut down.
„LP Cutoff" is displayed. When LP ≥ 0 inHg the unit will restart automatically.
LP3: (Continuous Run)
The suction device will run continuously, no matter what the level the input pressure is (LP).
O.F.P Cutoff: Will light up when the recovery cylinder is 80% filled, or if the OFP cable is
opened. The machine will stop running.
LP Cutoff: will light up when low pressure switch is activated for more than 20 seconds below -
20 inHg.
HP Cutoff: Will light up when high pressure switch is activated above 560 Ps.
Restart: It will flash after an error has occurred and settled. Pressing "START' will resume activi-
ty.
Fault: Error Codes:
• E1: The pressure sensor is disconnected
• Fault 2: Input voltage is too low
• Fault 3: High input voltage
• Fault 4: Overcurrent protection
• Fault 7: Temperature protector open
• Fault 8: Motor stalling
Mute: Audible alerts and beeps are turned off
Fan: This icon rotates while the machine is running. When the machine stops, the icon stops
rotating.
3.2

Commissioning

Do not mix different refrigerants together in one tank, otherwise they could not be separated or
used.
Before recovering the refrigerant, the tank should achieve the vacuum level: -29.6inHg, for purge
non-condensable gases. Each tank was full of nitrogen when it was manufactured in the factory,
thus the nitrogen should be evacuated before first use.
The knob should be in the "Close" Position before operation. All the valves must be closed, the
input and output fittings should be covered with protective caps when the unit is not in operation.
The air/ moisture is harmful to the recovery result and will shorten the life span of the unit.
A filter drier should always be used and should be replaced regularly. And each type of refriger-
ant must have its own filter. For the sake of ensuring the normal operation of the unit, please use
high quality filter drier specified by our company. A high quality filter drier will help protect ma-
chine.
Special-caution is needed when recovering from system, and two dry filters are needed.
The unit has an internal High Pressure protector. If the pressure inside the system is above rat-
ed shut-off pressure (see specification) , compressor will automatically shut off and the HP cutoff
shows. To restart the compressor, please lower the internal pressure (Output gauge indicates
Close: lnlet valve is closed
Recover: Input valve is partially opened
Fast: Input valve is fully opened
Purge: Input closed, and output is opened to allow the unit to
remove most of the refrigerant inside the recovery machine.
ENGLISH 19