Facility Setting (Cooling At Low Outdoor Temperature) - Daikin FTX50GV1B Service Manual

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, 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
71 Class
outdoor temperature rises, the operation starts again.
RX50/60G2V1B9, You can expand the operation range to –15°C by cutting the jumper (J6) on the outdoor unit
RX50/60G3V1B, PCB. Note that the operation may stop if the outdoor temperature drops below –15°C. If the
outdoor temperature rises, the operation starts again.
RX60G4V1B
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
2. Intermittent noises may be produced by the indoor unit due to the outdoor fan turning on and
3. Do not place humidifiers or other items which might raise the humidity in rooms where facility
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.
109
S102
S2
LED-A
Turn on the
switch SW4-B.
SW4
SW1
direct wind, provide a windbreak wall.
off when using facility settings.
settings are being used.
A humidifier might cause dew condensation from the indoor unit outlet vent.
SiBE041029EC
(R18285)
Cut the jumper J6.
(R18276)
Trial Operation and Field Settings