Pump Down Operation; Forced Cooling Operation - Daikin R410A Split Series 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 shut-off valves at the pipes for rooms A and B.
2) Run the unit on forced cooling. (Refer to the below.)
3) After 5 to 10 minutes, close the liquid shut-off 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 shut-off valves at the pipes for
rooms A and B have been shut off.
5) Turn the power breaker off.
Caution
Run cooling operation at the pipes for 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.
1-3. For set-ups where the indoor unit is a low static pressure duct FDBQ series.
1) Perform cooling operation in test-run mode.
Caution
If the outside temperature is 10°C or lower, the safety device might start, preventing operation. In this situation, warm
the outside temperature thermistor on the outdoor unit to 10°C or warmer. Operation will start.
IEnglish
button, button, and the "mode" button at the same time.
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