Facility Setting Switch (Cooling At Low Outdoor Temperature) - Daikin FVXS25FV1B Service Manual

SiBE06-708
3.15 Facility Setting Switch (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).
Detail You can expand the operation range to –15°C by cutting jumper 8 (25/35 class) or, turning on
switch B (SW4) (50 class) on the PCB. If the outdoor temperature falls to –20°C or lower, the
operation will stop. If the outdoor temperature rises, the operation will start again.
Caution 1. If the outdoor unit is installed where the heat exchanger of the unit is exposed to direct wind,
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. Cutting jumper 8 (J8) sets the indoor fan tap to the highest position. (25/35 class)
5. Use the indoor unit at the highest level of air flow rate. (50 class)
Function and Control
25/35 class
S90
PCB
S80 S80
Cut J8 with nippers
or a similar tools.
50 class
S102
S2
LED-A
SW4
SW1
provide a windbreak wall.
off when using facility settings.
settings are being used.
A humidifier might cause dew jumping from the indoor unit outlet vent.
Turn on
switch B.
Control Specification
2 3
1
(R6941)
(R5209)
49