Service manual

SiBE05-722_C Field Settings
Trial Operation and Field Settings 113
4.2 Facility Setting Jumper (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 the jumper 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.

RKS25/35E2V1B
Main PCB

RK(X)S25/35G2V1B
Main PCB
PCB
J1 J3 J4 J5 J6 J7 J8
S80
S80
S80
S90
S70
.
(R18373)
Cut the jumper J8.
S90
PCB
S50
S20
S10
S1
J4
J8
J9
Cut the jumper J8.
(R18374)