Takagi T-KJr2-IN - Computer Board

Installation
25│Page
The dark sq
uares indicate the direction the dipswitches should be set to.
4. Between the “PARENT” and the “CHILD-1” units
Connect the “PARENT” connector of the “PARENT” unit to the “[1]” connector of the “CHILD-1”
unit.
5. Between the “CHILD-1” and the “CHILD-2” units
Connect the “[2]” connector of the “CHILD-1” unit to the “[1]” connector of the “CHILD-2” unit.
6. Between the “CHILD-2” and the “CHILD-3” units
Connect the “[2]” connector of the “CHILD-2” unit to the “[1]” connector of the “CHILD-3” unit.
7. Make sure the 7-seg. LED of all the units’ computer boards display the unit #. The numbering
system automatically allocates the unit # to each water heater in the Easy-Link system, in
accordance with the table below.
Parent
unit
Unit # : 1
Child
units
Unit # : 2, 3 and 4
(A) 510 (T
-
D2) models Computer board
(B) Ba
sic diagram of connections between the Easy
-
Link System units.
To change the dipswitch
settings for the Easy-Link
system, locate the bank
of dipswitches to the
right of the 7-seg LED.
Do not adjust the left
bank of dipswitches.
Easy-Link connectors
are next to the
computer board
.
Easy
-
Link system
“Online” LED
Right bank of
dipswitches
Left bank of
dipswitches
7
-
Seg. LED
CAUTION
P A R E N T
1 2
3
4 5 6
Communication cable
Co nn e c to rs
Right bank of Dipswitches
OFF
ON
OFF
ON
OFF
ON
OFF
ON
11 11 11 11
22 22 22 22
P A R E N T P A R E N T P A R E N T
1 2
3
4 5 6
Right bank of Dipswitches
1 2
3
4 5 6
Right bank of Dipswitches
1 2
3
4 5 6
Right bank of Dipswitches
Co nn e c to rs Co nn e c to rs Co nn e ct or s
PA
R
ENT
unit
CHILD
-
1 unit
CHILD
-
2 unit
CHILD
-
3 unit