Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 51

1.6.3 Power supply remote operation
When the remote part on indoor unit PCB is modified, the air conditioner is turned ON-OFF by power supply ON-OFF operation
without using remote control switch.
After the power supply remote operation, the operation contents can be modified by the remote controller.
(1) Operation contents
(2) Modification method
S Models SRK25GZ-L1, 35GZ-L1
Solder the high-speed switching diode
(manufacturer: Matsushita, Manufac-
ture type No.: MA165) to "Remote"
part on the PCB in the direction as
shown in the diagram below.
This diagram shows SRK25GZ-L1 and
although the other units have different
layout on the PCB, their concepts are
some.
S Model SRK502Z-L
Cut the jumper wire for the "RE-
MOTE" section on the printed circuit
board.
Carefully position the jumper wire so
that it does not come in contact with
other parts.
Operation change
AUTO
COOL: 26˚C
DRY:
Set temperature
HEAT: 25˚C
Air flow change
AUTO
Flap
AUTO
Timer
Continuous
Anodo
CNH
23D
20S
52X1
CNU
(FMI)
CNM
SRK-GZ
25˚C
52C
49