REFCO ENVIRO - Manual (Page 15)

Instruction Manual ENVIRO English
12
7. Operation
Do not mix different refrigerants together in one tank, or
they cannot be separated or used. 1.
The switch should be at“Position 0”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. 2.
A filter drier should always be used and should be replaced
frequently. 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.
High quality filter drier will bring high quality services. 3.
Special caution is needed when recovering from burnt
system, and two dry filters are needed. 4.
The unit has an Internal High Pressure Shut-Off Switch.
If the pressure inside the system is above 38.5 bar, com-
pressor will automatically shut off the power. To restart
the compressor, please lower the internal pressure and
hit the High Pressure button, then turn. 5.
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 Trouble Shoot-
ing: