Facility Setting Jumper And Switch (Cooling At Low Outdoor Temperature) - Daikin J Series Service Manual

Field Settings
4.4 Facility Setting Jumper and Switch (cooling at low
outdoor temperature)
Outline For Cooling Only Model
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 or turning on switch on the
outdoor unit PCB. If the outdoor temperature falls to –20°C or lower, the operation stops. If the
outdoor temperature rises, the operation starts again.
245
RKS20/25/35J2V1B
Cut the jumper J4.
RKS42J2V1B
1) Remove the
2 screws.
Fan motor lead wire
Hook
3) Remove the
electrical box
cover from the
hook.
S40
S2
S90
Electrical
box cover
Insulation
sheet
PCB
SiBE041101
2 3
1
(R12187)
Top panel
2) Remove the
1 screw.
4) Remove the
insulation
sheet.
Notch
Electrical box
PCB
5) Cut the jumper J4.
(You can cut the
jumper with the
PCB mounted.)
(R14267)
Trial Operation and Field Settings