Daikin FVXS09NVJU, Руководство по обслуживанию

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Field Settings SiUS091601E
121 Trial Operation and Field Settings
4.3 Jumper and Switch Settings
FVXS Series Jumper
FVXS Series Switch
For the location of the jumper and the switch, refer to page 14.
4.4 Facility Setting Switch (cooling at low outdoor
temperature)
Outline This function is limited to use for facilities (where the target of air conditioning is equipment, such as
in a server room). Never use it in a residence or office where there are people present.
Detail You can expand the operation range to –15°C (5°F) by cutting the jumper on the outdoor unit PCB.
Note that the operation may stop if the outdoor temperature drops below –15°C (5°F). If the outdoor
temperature rises, the operation starts again.
For the location of the jumper, refer to page 16, 17, 18.
Caution Replace the PCB if you accidentally cut a wrong jumper.
Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of them.
Caution 1. If the outdoor unit is installed where the outdoor heat exchanger of the unit is exposed to direct
wind, provide a windbreak wall.
2. Intermittent noises may be produced by the indoor unit due to the outdoor fan turning on and off
when using facility settings.
3. 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 jumping from the indoor unit outlet vent.
4. Cutting jumper sets the indoor fan tap to the highest position.
Jumper (on indoor
unit PCB)
Function When connected
(factory setting)
When cut
JB Fan speed setting
when compressor
stops for thermostat
OFF. (effective only
at cooling operation) Fan speed setting;
Remote controller
setting The fan stops.
JC Power failure
recovery function Auto-restart The unit does not resume
operation after recovering from a
power failure. Timer settings are
cleared.
Switch (on indoor unit
PCB)
Function OFF
(factory setting)
ON
SW2-4 Upward airflow limit
setting Exposed or half
embedded
installation Set the switch to ON position
when you install the indoor unit
embedded in the wall to avoid
condensation.