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Transmission
cable
Outdoor
unit
Indoor
unit
Wireless remote
controller
[Example of connecting group remote controllers in a parallel ar-
rangement]
Transmission Cable to
VRF System
FUSE (3 A)
1Ø 50/60 Hz
208-240 V
SWITCH
(Disconnect switch)
Power Supply
L1 + L2 + L3 + L4 + L5 + L6
[Example of connecting group remote controllers in series]
Terminal box
K K
K
RC UNIT
UNIT
L1 + L2 + L3 + L4 + L5 + L6 + L7
Note:
▪
Use of a terminal box is recommended when a junction is made in the
wiring.
▪
Do not bind the power cable, remote controller cable and transmission
cable to avoid an erroneous operation.
▪
Use ground cable to ground the network convertor.
▪
Use shield cable for transmission cable and remote controller cable.
The shield metal should be grounded.
▪
Install the disconnect switch to the easily accessible location.
▪
Install the fuse (3A) to the L line of power supply cable.
En-3
Remote controller
cable
Network
convertor
Wired remote
Group remote
controller
controller
Transmission Cable to
VRF System
K K
K
POWER
RC UNIT
UNIT
SUPPLY
NETWORK CONVERTOR
100 m (328 ft.)
or
100 m (328 ft.)
5. 1. 2.
Setting method when connecting a single split
indoor unit
[Example of connecting single split type
indoor unit in a parallel arrangement]
Case 1
Transmission Cable
Transmission Cable
FUSE (3 A)
1Ø 50/60 Hz
208-240 V
SWITCH
(Disconnect
switch)
POWER
SUPPLY
Power Supply
NETWORK CONVERTOR
Case 2
Wired remote controller
Transmission Cable
Transmission Cable
1Ø 50/60 Hz
FUSE (3 A)
208-240 V
SWITCH
(Disconnect
switch)
POWER
SUPPLY
Power Supply
NETWORK CONVERTOR
Note:
▪
Install the disconnect switch to the easily accessible location.
▪
Install the fuse (3A) to the L line of power supply cable.
*1.
Up to 16 indoor units may be controlled with a single network con-
vertor, however multiple indoor units connected to the network con-
vertor are generally required to have the same operation setting.
*2.
Always use indoor units with the same RC model or the same
system type when connecting multiple indoor units. Refer to "[DIP
switch - SW103 <1, 2, 3, 4>] RC model or system type setting" in "12
CIRCUIT BOARD SETTING" for information about RC models.
*3.
Connect a single big multi system to a single network convertor. 2
units or more of big multi systems cannot be connected. Big multi
system and single split system can also be connected simultane-
ously.
*4.
Network convertor is necessary for each indoor unit.
*5.
For using J series heat pump system, "AUTO" and "FAN" mode
should not be used.
*6.
When connecting the J-series heat pump model, the set opera-
tion conditions will be displayed on the control unit. Therefore, the
Indoor unit
Max. 16 units
K K
K
RC UNIT
UNIT
Indoor unit
Max. 2 units
Max. 16 units
K K
K
RC UNIT
UNIT
Single
Big Multi
Split
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