Loose wiring may cause the
terminal to overheat or
result in unit malfunction.
A fire hazard may also exist.
Therefore, be sure all wiring
is tightly connected.
When connecting each power wire to the corresponding
terminal, follow instructions “How to connect wiring to the
terminal” and fasten the wire securely tight with the fixing screw
of the terminal plate.
How to connect wiring to the terminal
■
For stranded wiring
(1) Cut the wire end with a cutting pliers, then strip the insulation
to expose the stranded wiring about 10 mm and tightly twist
the wire ends.
(2) Using a screwdriver, remove the terminal screw(s) on the
terminal plate.
(3) Using a ring connector fastener or pliers, securely clamp
each stripped wire end with a ring connector.
(4) Place the ring connector wire, and replace and tighten the
removed terminal screw using a screwdriver.
20
WARNING
Stranded wire
Special
washer
Screw
Ring connector
Ring connector
Screw and
Special washer
Wire
Wire
Terminal plate
Ring
connector
Strip 10 mm
●
Setting of outdoor control PCB
(A) Group control (Multiple outdoor units)
In case of group control (up to 8 indoor units can be connected
with one remote controller), before turning the power supply on
set the R.C. address with S2, S3 on the outdoor control PCB.
R.C. address: Refrigerant circuit address 1 ~ 30.
Regarding the example of R.C. address for group control,
please refer to page 17 and sec. 8-1.
8. PCB SETTING (Only for PACKAGE Outdoor Units)
●
Setting of indoor control PCB
No setting necessary.
Each indoor unit address (UNIT No.: R.C. – No.) is decided after auto. address operation.
Indoor unit No.
Refrigerant Circuit No. (R.C. address)
Manual setting for indoor unit address can be performed also by remote controller.
8-1. R.C. Address Setting Method
Outdoor unit R.C. address setting method
In case of group control or central control, set the R.C. address to 1, 2, 3, ... according to the No. of outdoor units.
(B) Central control (when using the system controller)
In case of central control
(a) Before turning the power supply on, set the R.C. addresses
with S2, S3 on the outdoor control PCB.
(b) Remove the short plug (CN4, 2P Black) from all outdoor units
except one.
Regarding the example of R.C. address for central control and
the position of CN4, please refer to page 18 and sec. 8-1.
1
ON
10
20
: S2
: S3
0515_C_I
2
0
CN4
Refrigerant circuit address
(factory setting = 0)
Refrigerant circuit address (black)
Refrigerant circuit address
(2P DIP switch, green)
ON side
OFF side
Oudoor control PCB
(2P Black)
A.ADD (S1):
Automatic address setting start button
Used for central control (link system)
and group control (Normally, not used)
EG
