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MULTI-UNIT SYSTEM FOR LARGE VOLUMES
Multiple 710 (T-M32) models can be combined for a Multi-Unit system, along with the Multiple
Unit Controller and Remote Controller (Parts 9007675005 (TM-MC01) and 9007603005 (TM-
RE30)).
Each set of controllers (one 9007675005 (TM-MC01) and one 9007603005 (TM-
RE30)) can control from 2 units to 20 units for commercial or residential applications. For a 20-
unit system, the computer can modulate between the usages of 24,000 BTU/h to 4.8 Million
BTU/h.
710
(T-M32)
T-M32
Cold IN
An individual cut-off switch if hard-wired is recommended for each unit in a multi-unit system for
the purpose of maintenance.
Multi-Unit System Connection Diagram
Multi-Unit
Controller
(9007603005 (TM-RE30)) wiring:
Unit 1
C o n n e c t o r s
Left bank of
Dipswitches
Communication cable
The dark squares indicate the direction the dipswitches
should be set to.
This is the connection diagram between 710
(T-M32) and 9007675005 (TM-MC01) for 2 to
20 water heaters. As shown is a sample for 3
water heaters.
Make sure the "7-seg LED" of all the units'
computer boards display the unit #. The Multi-unit
controller automatically allocates the unit # (1-20)
to each water heater that is part of the Multi-unit
system.
(9007675005
(TM-MC01))
Unit 2
C o n n e c t o r s
Left bank of
Dipswitches
and
Temperature
Left bank of
Dipswitches
T M - R E 3 0
9007603005
9007603005
o r
)
(TM-RE30
T M - R E 1 0
Terminals for
Water
heaters
- 28 -
9007675005
(TM-MC01)
Hot Out
Remote
Controller
Unit 3
C o n n e c t o r s
T M - M C 0 1
9007675005
(TM-MC01)
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