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Control Specification
SiEN04-306D
70
Function and Control
3.16 Facility Setting Switch (cooling at low outdoor
temperature)
Outline
RKS50/60/71BVMB9, RK(X)S71B2(3)VMB models
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 turning on switch B (SW4) 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,
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. Use the indoor unit at the highest level of air flow rate.
A B C
ON
S
W4
LED-A
S
52
S
W1
S
2
1A
1
2
3
T
u
rn on
s
witch B.
Summary of Contents for ARXS50C2VMB
Page 109: ...Instruction SiEN04 306D 100 System Configuration ...
Page 199: ...Outdoor Unit SiEN04 306D 190 Removal Procedure ...
Page 203: ...Others SiEN04 306D 194 Others ...
Page 214: ...SiEN04 306D Wiring Diagrams Appendix 205 FTKD18 24 28BVMS ...
Page 216: ...SiEN04 306D Wiring Diagrams Appendix 207 RKD18 24 28BVMS ...