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3. Select one unit to be the
“PARENT”
unit. The
“PARENT”
unit should be one of the end units.
4.
“PARENT”
unit:
Locate the two banks of DIP switches at the bottom left of the computer board of the unit that you
select to be the
“PARENT”
unit. Change DIP switch No. 1 on the
lower bank of DIP switches to the
ON position
. See the computer board diagram as shown below. Do not change any DIP switches on
any of the
“CHILD”
units.
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 and/or temperature controller will display
“1”.
Turn on
“CHILD-1”
. When the (remote and/or temperature) controller displays a number, turn on
“CHILD-2”
.
When the (remote and/or temperature) controller displays a number, turn on
“CHILD-3”
.
Make sure the (remote and/or temperature) controllers 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.
(A) TH3-DV / 540H Computer board
(B) Basic diagram of connections between the Easy-Link System units.
Installation
Installation Manual
NOTE:
The dark squares indicate the direction the DIP switches should be set to.
Type of unit
Unit # of Easy-Link
Parent
1
Child
2, 3 or 4
To change the DIP switch
settings for the Easy-Link
S
ystem, locate the bank of
DIP switches at the bottom
left of the computer board.
Do not adjust the upper
bank of DIP switches.
PARENT
Lower bank of DIP switches
Upper bank of DIP switches
Easy-Link /
Multi-Unit
connectors
are next to
the computer
board.
Temperature controller
or
Remote controller
PARENT unit
CHILD-1 unit
CHILD-2 unit
CHILD-3 unit
PA
RENT
Communicaon cable
Connectors
Lower bank of
DIP switches
OF
F
ON
1
1
1
1
2
2
2
2
PA
RENT
PA
RENT
PA
RENT
1
2
3
4
5
6
Connectors
Connectors
Connectors
1
2
3
4
5
6
OF
F
ON
OF
F
ON
1
2
3
4
5
6
OF
F
ON
1
2
3
4
5
6
Lower bank of
DIP switches
Lower bank of
DIP switches
Lower bank of
DIP switches
