SiMT041509E Tips for Servicing
Trial Operation and Field Settings 92
1. Tips for Servicing
1.1 Pump Down Operation
Outline In order to protect the environment, be sure to conduct pump down operation when relocating or
disposing of the unit.
Detail 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.
Refer to forced cooling operation below.
1.2 Forced Cooling Operation
Indoor Unit
Gas stop valve
Valve cap
Close
Liquid stop valve
Service port
(R13628)
Hexagonal
wrench
Item Forced Cooling
Conditions The forced cooling operation is allowed when both the following conditions are
met.
1) The outdoor unit is not abnormal and not in the 3-minute standby mode.
2) The outdoor unit is not operating.
Start Press the forced cooling operation ON/OFF button (SW1) on the indoor unit
for 5 seconds.
Command
frequency
30 Hz
End The forced cooling operation ends when any of the following conditions is
fulfilled.
1) The operation ends automatically after 15 minutes.
2) Press the forced cooling operation ON/OFF button (SW1) on the indoor unit
again.
3) Press the ON/OFF button on the remote controller.
ON/OFF button (SW1)
(R20378)
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