SiUS041829E Pump Down Operation
Part 7 Trial Operation and Field Settings 125
1. Pump Down Operation
Outline In order to protect the environment, be sure to conduct pump down operation when relocating or
disposing of the unit.
Details 1. Remove the valve caps from the liquid stop valve and the gas stop valve.
2. Carry out forced cooling operation.
3. After 5 - 10 minutes, close the liquid stop valve with a hexagonal wrench.
4. After 2 - 3 minutes, close the gas stop valve and stop the forced cooling operation.
5. Attach the valve cap once procedures are complete.
Refer to page 126 for details of forced cooling operation.
Gas stop valve
Valve cap
Close
Liquid stop valve
Service port
(R25008)
Hexagonal
wrench
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