LT-S-(L) Technical manual
3
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Step type control logic description
10% load
Figure 3-3. 10% Load
When starting up the
compressor, SV1(unload) &
SV2 (10%) need to be
energized to make the piston
keep at the 10% position(left
side)
In this state, the high
pressure oil passes through
SV1(unload) then goes to the
right side of the piston. At the
same time, the oil from left
side of the piston passes through SV2 (10%) then discharge to the low pressure side.
By doing so, the piston can be held at the 10% load position.
★
Note: 10% load is for start up only. Running the compressor at 10% load for a long
time is not recommended.
50% load
At
this
time,
the
capacity adjustment solenoid
valves SV1 (unload) and
SV3 (50%) are active.
Under
50%
load,
SV1(unload) &SV3 (50%)
are energized.
In this state, the high
pressure oil passes to the left
side
of
the
piston
continuously. At the same
time, the oil passes through
SV1 (unload) then goes to
the right side of the piston.
fig3-3.10%负载
