SM-18006
3-11
TROUBLESHOOTING
● Setting for Communication
Use the following settings for the water source unit numbers, refrigerant system numbers and end terminal
resistance for this H-LINK system.
DSW and RSW setting before shipment is 0.
Maximum in setting refrigerant system number is 63.
Setting Switch
10 digit
123456
ON
OFF
1 digit
0
9
6
4
3
1
2
Set by inserting
into the groove.
Water Source
Unit
DSW1 RSW1
Indoor Unit
(H-LINK II)
DSW5 RSW2
1
1. RSW1 for Generation 2 Ducted type.
Example: If Setting Refrigerant System No. 25
● Setting of Refrigerant System Number
In the same refrigerant system, set the same refrigerant system number for the water source unit and the
indoor units as shown below.
Setting water source unit refrigerant system number is required only for the main unit.
The sub unit settings are not required.
As for setting indoor unit refrigerant system number, set RSW2 and DSW5 on the indoor unit PCB.
Maximum Number of Connectable
Water Source Units and Indoor Units
(for H-LINK II)
Water Source Unit 64
Indoor Unit 160
For installing the water source unit
and the indoor unit on the same
communication cable, which cannot be
used for H-LINK II, maximum number
of connectable indoor units is 128.
7
9
5
8
6
4
3
1
2
3214
ON
56
OFF
Turn ON No. 2 pin. Set Dial No.5.
0
7
9
5
8
6
4
3
1
2
3214
ON
56
OFF
3214
ON
OFF
DSW1:
DSW6:
RSW1:
Main Unit
Ref. System No. 25
Setting of Main Unit (Unit A)
H-LINK II
(Factory-Setting)
to the Indoor Units
Setting Example
Communication Line
(No Polarity)
H-LINK II
Centralized Controller
Water
Source Unit
Indoor
Unit
Wired Controller
Set the refrigerant system No. not to duplicate
no. with the other water source units.
Refrigerant System for
This Water Source Unit
Set to the same refrigerant
system No.
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