Install Instructions

26 Page
5. 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
using the supplied linking cable.
6. 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.
7. 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.
8. Verify that all cables are connected like the diagram below (B).
9. Turn on power to the “PARENT” unit. The remote controller will display “1”.
Turn on “CHILD-1”. When the remote controller displays a number, turn on “CHILD-2”.
When the remote controller displays a number, turn on “CHILD-3”.
Make sure the remote controller displays each unit #. (Refer to p.43.) The numbering system automati-
cally allocates the unit # to each water heater in the Easy-Link System, in accordance with the table
below.
(A) 510U (T-D2U) model Computer board
(B) Basic diagram of connections between the Easy-Link System units
NOTE: The dark squares indicate the direction the DIPswitches should be set to.
Type of unit Unit # of easy-link
Parent 1
Child 2, 3 or 4
PARENT
Communicaon cable
Connectors
Lower bank of
DIPswitches
OFF
ON
1
1
1
12
2
2
2
PARENT PARENT PARENT
1
2
3
4
5
6
Connectors Connectors Connectors
1
2
3
4
5
6
OFF
ON
OFF
ON
1
2
3
4
5
6
OFF
ON
1
2
3
4
5
6
Lower bank of
DIPswitches
Lower bank of
DIPswitches
Lower bank of
DIPswitches
PARENT unit
CHILD-1 unit CHILD-3 unit
CHILD-2 unit
Remote controller
To change the DIPswitch
settings for the Easy-Link
System, locate the bank of
DIPswitches at the bottom
left of the computer board.
Do not adjust the upper
bank of DIPswitches.
Easy-Link /
Mul-Unit
connectors
are next to
the computer
board.
Lower bank of DIPswitches
Upper bank of DIPswitches
Installaon
Installaon Manual