Takagi T-H2-DV Installation Manual And Owner's Manual page 29

4. Between the "MASTER" and the "SLAVE 1" units
Connect the "MASTER connector" of the "MASTER" unit to the "[1] connector" of the "SLAVE 1"
unit.
5. Between the "SLAVE 1" and the "SLAVE 2" units
Connect the "[2] connector" of the "SLAVE 1" unit to the "[1] connector" of the "SLAVE 2" unit.
6. Between the "SLAVE 2" and the "SLAVE 3" units
Connect the "[2] connector" of the "SLAVE 2" unit to the "[1] connector" of the "SLAVE 3" unit.
7. Make sure the "3 digit 7 seg. LED" of all the units' computer boards display the unit #. The
numbering system of the T H2 DV/T H2 OS automatically allocates the unit # to each water heater
in the Easy Link system, in accordance with the table below.
Master unit
Slave units
(A) T H2 DV/T H2 OS Computer board
3 digit 7 Seg. LED
Left bank of
dipswitches
Right bank of
dipswitches
(B) Basic diagram of connections among the T H2s.
MASTER unit
The dark squares indicate the direction
the dipswitches should be set to.
Unit # : 1
Unit # : 2, 3 and 4
SLAVE 1 unit
29
Page
Installation
Easy Link connectors
are next to the
computer board.
When setting a unit to a
"MASTER" unit, adjust
dipswitch No.10 on the
right bank of
dipswitches only
(see diagram).
SLAVE 2 unit
SLAVE 3 unit