Facility Setting (Cooling At Low Outdoor Temperature); Standby Electricity Saving - Daikin ARXM25M3V1B9 Installation Manual

Facility Setting (cooling at low outdoor
temperature)
This function is designed for facilities such as equipment or computer rooms. It is never to be used in a residence or office
where people occupy the space.
1) Cutting jumper 6 (J6) on the circuit board will expand the operation range down to –15°C. However it will stop if the outdoor
temperature drops below –20°C and start back up once the temperature rises again.
Cut J6 with nippers
or a similar tools.
CAUTION
• If the outdoor unit is installed where the heat exchanger of the unit is exposed to direct wind, provide a windbreak wall.
• Intermittent noises may be produced by the indoor unit due to the outdoor fan turning on and off when using facility settings.
• Do not place humidifiers or other items which might raise the humidity in rooms where facility settings are being used.
A humidifier might cause dew condensation from the indoor unit outlet vent.
• Cutting jumper 6 (J6) sets the indoor fan tap to the highest position. Notify the user about this.

Standby Electricity Saving

The standby electricity saving function turns off power supply to the outdoor unit and sets the indoor unit into
standby electricity saving mode, thus reducing the power consumption of the air conditioner.
CAUTION
• The standby electricity saving function cannot be used for models other than the specified ones.
For FTXM, FVXM types.
 Procedure for turning on standby electricity saving function
1) Check that the main power supply is turned off. Turn it off if it has not
been turned off.
2) Remove the stop valve cover.
3) Disconnect the selective connector for standby electricity saving.
4) Turn on the main power supply.
CAUTION
• Before connecting or disconnecting the selective connector for standby electricity saving, make sure that the main power
supply is turned off.
The selective connector for standby electricity saving is required if an indoor unit other than the above applicable one is connected.
LED on the outdoor unit PCB
LED on the PCB turn the light OFF for power saving when unit is not operating. Even if LED is OFF, there is possibility that the power
is supplied to the terminal block, PCB and so on.
NOTE
You must turn power supply OFF when you check the unit.
10
Standby electricity saving
function off.
The standby electricity saving function is turned off
before shipping.
2 3
1
Standby electricity saving
function on.
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