Refco ENVIRO-DUO, Инструкция по эксплуатации

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If the knob is turned to position “1” and the unit it running,
a stable recovery of liquid refrigerant can occur, but
at a lower recovery rate. If liquid impacting occurs in
the compressor when at position “1”, slowly turn the
knob clockwise to position “start”. The reading of low
pressure gauge will decrease until the impacting stops.
The pressure should be above “0”, because it cannot
intake if the pressure is “0”.
b .
When liquid recovery is finished, turn the Switch to
position "2" for faster recovery. 8.
The unit will automatically stop when recovery is finished,
please start the Purge operation now. 9.
Instruction Manual ENVIRO-DUO English
16
If liquid impacting occurs in the compressor when at
position “2”, please turn the knob to position “start”
slowly. The reading of low pressure gauge will decrease
until the impacting stops, but the pressure should be
above“0”, because the intake port cannot intake when
the pressure is “0”.
If it is difficult to start or restart after power off , please
turn the knob to position “START”, then turn on the
power and hit the RESET button.
Notice:
a .