Takagi T-M50 Installation Manual And Owner's Manual page 28

Multi-Unit System Connection Diagram
The water heaters with a multi-unit controller and a remote controller wiring:
Unit 1
Connectors Connectors
Lower bank of Dipswitch Lower bank of Dipswitch
ON ON
OFF OFF
Communication cable
• The above connection diagram is an example of how to connect 4 water heaters together in
a Multi-Unit System. Up to 10 water heaters can be connected in this fashion.
• Make sure the "7-seg LED" of computer board of each unit displays the unit #. The multi-unit
controller automatically allocates the unit # (1 to 10) to each water heater in a Multi-Unit
system.
• The dark squares indicate the direction the dipswitches should be set to.
Available multi-unit controllers with a remote controller
9007675005 ( TM-MC01)
(comes with 9007603005 ( TM-RE30 ))
Please refer to the multi-unit controller's manual for additional information and instruction.
Upper bank of
dipswitches
7-Seg LED
Lower bank of
dipswitches
Unit2 Unit3
Connectors
Lower bank of Dipswitch
ON
OFF
This lamp will flash when the unit is allowed the operation.
The Comunication Cables are included with the 910 (T-M50). The
Cables use 18 gage wire and can be up to 250 ft. long all together.
Unit4
Connectors
Lower bank of Dipswitch
ON
OFF
9008300005 ( TM-MC02 )
(comes with 9008172005 ( TM-RE40 ))
.
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Remote
Multi-unit
controller
controller
Easy-Link / Multi-Unit
System connectors are
on each unit's
computer board