10.2 ELECTRICAL WIRING CONNECTION FOR OUTDOOR UNITS
The electrical wiring connection for the outdoor unit is shown in
figure below:
L1 L2
N
1
2
Power Supply
AC 230 V
Control cable (5V)
Instructions for wiring and electrical board:
Power wires
PCB
Earth terminal
Side cover
Transmission
wires
10.2.1 Setting of DIP switches for outdoor unit
Quantity and position of DIP switches
The PCB in the outdoor unit is operating with 7 types of DIP
switches, and 4 push switches. The location is as follows:
PCB1
PCB2
DSW1: No setting is required
When set pin number 1 to ON, the electric
current detection is cancelled. Pin number
1 should be set back to OFF after electrical
work.
DSW301: Test run mode
Setting before shipment
Cooling
Heating
Forced stop of compressor
DSW2: Optional function setting
Factory setting
Optional function setting
External input / output setting mode
Annual cooling
DSW3: Capacity Setting (No setting is required)
Setting position
DSW4 / RSW1: Refrigerant cycle number setting
(Setting is required)
Setting for the tens digit
Setting position
Set by inserting slotted screwdriver into the
groove (setting for the last digit)
DSW5: End terminal resistance (No setting is
required)
Setting before shipment
ELECTRIC WIRING
PMML0548 rev.0 - 04/2020 - A10648790A
12
EN