Daikin FTX50GV1B - Facility Setting (Cooling at Low Outdoor Temperature)

Field Settings SiBE041029EC
109 Trial Operation and Field Settings
4.2 Facility Setting (Cooling at Low Outdoor Temperature)
Outline This function is limited only for facilities (the target of air conditioning is equipment (such as
computer)). Never use it in a residence or office (the space where there is a human).
RX50/60G2V1B,
71 Class
You can expand the operation range to –15°C by turning on the switch (SW4-B) on the service
monitor PCB. If the outdoor temperature falls to –20°C or lower, the operation stops. If the
outdoor temperature rises, the operation starts again.
RX50/60G2V1B9,
RX50/60G3V1B,
RX60G4V1B
You can expand the operation range to –15°C by cutting the jumper (J6) on the outdoor unit
PCB. Note that the operation may stop if the outdoor temperature drops below –15°C. If the
outdoor temperature rises, the operation starts again.
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 condensation from the indoor unit outlet vent.
4. Use the indoor unit at the highest level of airflow rate.
5. Cutting the jumper sets the indoor fan tap to the highest position.
(R18285)
LED-A
SW4
ON
ABCD
S102
SW1
S2
Turn on the
switch SW4-B.
(R18276)
GND
Cut the jumper J6.
J5 J7 J8 J6