Pump Down Operation; Forced Cooling Operation - Daikin 2MXM40M2V1B Installation Manual

Pump Down Operation

In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1) Remove the valve caps on the liquid and the gas stop valves at the pipes for rooms A
and B.
2) Run the unit on forced cooling. (Refer to the instructions below.)
3) After 5 to 10 minutes, close the liquid stop valves at the pipes for rooms A and B
using a hex wrench.
4) After 2 to 3 minutes, 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.
CAUTION
Run the air conditioner to cool both rooms A and B when performing a pump down.
1.

Forced cooling operation

1-1. Using the indoor unit start/stop button.
1) Press the start/stop button on the indoor unit in either room A or B for 5 seconds continuously.
The units in both rooms will start.
2) Forced cooling operation will end after around 15 minutes and the unit will stop automatically. Press the start/stop
button on the indoor unit to force the operation to stop.
3) Use this method to force cooling operation when the outside temperature is -10°C or lower.
1-2. Using the wireless remote controller.
1) Select cooling operation and press the start/stop button. (The unit will start.)
2) Press the temperature
3) Press the "mode" button twice.
( will be displayed and the unit will go into test-run mode.)
4) Test-run mode will end after around 30 minutes and the unit will stop automatically. Press the start/stop button to
force the test-run to stop.
CAUTION
If the outside temperature is -10°C or lower, the safety device might start, preventing operation. In this situation, warm the out-
side temperature thermistor on the outdoor unit to -10°C or warmer. Operation will start.
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button, button, and the "mode" button at the same time.
Liquid
stop valve
Gas
stop valve
Valve cap
English
Hexagonal
wrench
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