AirMan PDS400S-6C3, Руководство по обслуживанию

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1. Specification
1-10
1.6 Capacity Control Device
PC13052-3E
Step Response
Start
Compressed air is sent into the unloader chamber through starting
unloader solenoid valve SV1 to fully open the unloader valve. Further, as
COM-NC for the solenoid valve SV2 is connecting, the spring chamber becomes
negative pressure, and unloader valve fully closes at lower pressure. Thus
starting unloader operation is performed.
●
In cold seasons, it opens the low temperature starting valve, and it sends
compressed air in separator receiver tank into the unloader and the unloader
valve can be fully closed at low pressure. Thus, the load for starting can be
reduced.
●
SV1 and SV2 solenoid valves operate 30 seconds at the discharge air
temperature of higher than 10
℃
, and the temperature should be higher than
10
℃
or it operates 120 seconds.
●
Engine (revolution) speed is fixed at 1,600min
-1
for the above mentioned
operation conditions.
Load operation
So that SV1 and SV2 solenoid valves are to be closed, the flow of air sent into
the chamber increases and decreases according to the increase and decrease
of discharge pressure. Accordingly, the position of unloader valve and engine
(revolution) speed change. Automatically discharge air volume can be controlled
steplessly from 0 – 100%.
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