Refco ENVIRO Bedienungsanleitung Seite 13

8. Commissioning
1. Do not mix different refrigerants together in one tank, or they
cannot be separated or used.
2. The switch should be at "Position 0" before the commissioning. 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.
3. A filter drier should always be used and should be replaced
regularly. And each type of refrigerant must have its own filter.
For the sake of ensuring the normal operation of the unit, please
use the filter specified by our company. A high-quality filter drier
will bring high quality services.
4. Special caution is needed when recovering from system, and two
dry filters are needed in this case.
5. The unit has an internal high-pressure shut-off switch. If the
pressure inside the system is above 38.5 bar, compressor will
automatically shut off the power. To restart the compressor,
please lower the internal pressure and hit the high-pressure
button, then turn.
When high pressure protection is initiated, please find out the
cause and deal with it before restarting the unit. Cause of high-
pressure protection and troubleshooting:
the input valve of the refrigerant tank is closed – opening the
①
valve will help solve the problem.
the connecting hose between the recovery unit and
②
refrigerant tank is stuck – close all the valves and replace the
connecting hose.
the temperature of the refrigerant tank is too high, causing
③
high pressure – give it some time to cool down and the pressure
will come back to normal.
6. An electric scale needs to be used together with the recovery unit
to monitor the recover process.
12 Instruction Manual