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Pump Down Operation
SiBE12-933_A
250
Trial Operation and Field Settings
1. Pump Down Operation
Outline
In order to protect the environment, be sure to conduct pump down operation when relocating or
disposing the unit.
Detail
1) Remove the valve caps from the liquid stop valve and the gas stop valve at the pipes for
rooms A and room B.
2) Carry out forced cooling operation.
3) After 5 to 10 minutes, close the liquid stop valve at the pipes for rooms A and room B with a
hexagonal wrench.
4) After 2 to 3 minutes, close the gas stop valve and stop the forced cooling operation as quickly
as possible after the gas stop valves at the pipes for rooms A and B have been shut off.
5) Turn the power breaker off.
Refer to page 251 for forced cooling operation.
Gas stop valve
Valve cap
Close
Liquid stop valve
Service port
(R13628)
Hexagonal
wrench