Hanbell RC2-D, Technical Manual

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RC2-D Technical Manual
3.2.1.1 25% (33%) loading
When the compressor starts, the solenoid
valve is activated, and the piston is in the
25% (33%) load position. In this state, the
high-pressure oil from the oil tank is
continuously injected into the piston cylinder
through the capillary, and the high-pressure
oil in the piston cylinder is directly bypassed
to the suction port, so the piston remains in
its initial position.
Note: Activate the SV1 (25%) for 1 ~ 3 minutes before starting the compressor, so that the sliding
valve is at the minimum load before start-up, so as to avoid the trip protection caused by large current
when the motor is started . After the start-up process, do not run the compressor for a long time under
25% load, but directly load the compressor (especially in the case of large differential pressure /
pressure ratio) to prevent the compressor discharge temperature from being too high .
3.2.1.2 50% (66%) loading
When the 50% / 66% solenoid valve is activated, the high-pressure oil from the oil tank flows into the
piston cylinder and pushes the piston to move to the right. When it moves to 50% / 66%, the
high-pressure oil flows back from the oil unloading hole to the suction port through 50% / 66%, so the
piston stops running at this position and the compressor remains at 50% / 66% load state.
3.2.1.3 75% loading (RC2 -100
～
RC2 -180 without this loading state)
When 75% solenoid is activated, and the 50% solenoid valve is off, the high oil pressure pushes the
piston to move to the right. When the valve moves to 75%, the high pressure oil flows back to the
suction port through 75% of the oil hole, so the piston stops running in this position and the compressor
is kept at 75% load state.
3.2.1.4 100% loading
When all the solenoid valves are off, the high oil pressure continuously flows into the piston cylinder
and gradually pushes the piston to move to the suction side. When the sliding valve contacts the dead
center of the compression chamber, the piston also reaches its dead center position. At this time, there
is no compressed gas bypass, the compressor reaches full load.
RC2 -100
、
140
、
180 33% (NC) 66% (NC)
100% loading N N
66% loading N Y
33% loading
（
Start/ Stop
）
Y N
RC2 -200~1530 25% (NC) 50% (NC) 75% (NC)
100% loading N N N
75% loading N N Y
50% loading N Y N
25% loading
（
Start/ Stop
）
Y N N