2) For a unidirectional communication mode:
Use 1 wired controller to control 1 indoor unit (see Figure 6.9).
Indoor unit 1
Figure 6.9
The X1, X2, D1, D2 ports on the sides of the main control board and
the unidirectional communication port (display board side) are for
different types of wired controllers (see Figure 6.10).
Use the connecting wires (accessory 8) to connect the D1, D2
ports.
A
B
KJR-29B1/BK-E (CL92869)
C
KJR-86C-E (CL92870)
Wired
D
controller
Display
XS4 XP4
D1
D2
To wired
controller
comm. bus
XT2
P Q E
X1 X2
WDC-120GWK (CL97810)
To outdoor/indoor
To wired
units comm. bus
controller
WDC-86E/KD (CL97811)
Caution
•
For the specific connection method, refer to the instructions in the
corresponding wired controller manual to carry out the wiring and
connections.
6.4 Handling the Electrical Wiring Connection Points
Once the wiring and connections are done, use tie straps to secure
the wiring properly so that the connection joint cannot be pulled
apart by external force. The connection wiring must be straight out
so that the cover of the electrical box is level and can be closed
tightly.
Use professional insulation and sealing materials to seal and
protect the perforated wires. Poor sealing may lead to
condensation, and entry of small animals and insects that may
cause short circuits in parts of the electrical system, causing the
system to fail.
7. On-site Configuration
7.1 Capacity Settings
Set up the PCB DIP switch on the indoor electric control box to cater
to different uses. Once the settings are done, make sure you cut off
the main power switch again, and then switch the power on. If the
power is not cut off and switched on again, the settings will not be
executed.
POWER_S
A
B
C
D
Display board
A
B
C
D
Wired controller 1
KJR-29B1/BK-E (CL92869)
KJR-86C-E (CL92870)
SW5 SW4 SW3 SW2 SW1
SW6 SW7
ENC1
1
Main Board
Figure 6.10
ENC1
ENC1 Settings for Capacity DIP Switch:
DIP Switch Code
0
1
2
3
4
5
6
7
8
9
A
B
Caution
• The capacity DIP switches have been configured before delivery.
Only a professional maintenance personnel should change
these settings.
7.2 Address Settings
When this indoor unit is connected to the outdoor unit, the outdoor
unit will automatically allocate the address to the indoor unit.
Alternatively, you may use the controller to manually set the address.
• The addresses of any two indoor units in the same system cannot
be the same.
• The network address and the indoor unit address are the same,
and does not have to be configured separately.
• Once the address settings are completed, mark the address of
each indoor unit to facilitate after-sales maintenance.
• The centralized control of the indoor unit is completed on the
outdoor unit. For details, refer to the manual on the outdoor unit.
Caution
• Once the centralized control function for the indoor unit has been
completed on the outdoor unit, the DIP switch on main control
panel of the outdoor unit must be set to auto addressing;
otherwise, the indoor unit in the system are not controlled by the
centralized controller.
• The system can connect up to 64 indoor units (address 0~63) at
the same time. Each indoor unit can only have one address DIP
switch in the system. The addresses of any two indoor units in
7.3 DIP Switch Settings on Main Board
0/1 definition of each dial code switch:
means 0
SW1_1
SW1
Cooling mode temperature compensation is 0°C
[
]
0
SW1
Cooling mode temperature compensation is 2°C
[
]
1
SW1_2
EEV at position 96 (steps) in standby in heating mode
SW1
[
]
0
SW1
EEV at position 72 (steps) in standby in heating mode
[
]
1
28
Capacity
2.2kW
2.8kW
3.6kW
4.5kW
5.6kW
7.1kW
8.0kW
9.0kW
10.0kW
11.2kW
12.5kW
14.0kW
means 1