Multi-Unit System - State Water Heaters 310C Installation Manual And Owner's Manual

Multiple 510C models can be combined for a Multi-Unit System, along with the multi-unit controller
(Part 9008300005 (TM-MC02)). Each multi-unit/remote controller set can control from 2 to 20
units for commercial or residential applications. For a 20-unit system, the computer can modulate
between the usages of 15,000 BTU/h to 3.98 million BTU/h.
An individual cut-off switch is recommended
for each unit in a Multi-Unit System for the
purpose of maintenance.
Multi-Unit System connection diagram
Multi-unit controller and temperature remote controller wiring:
Remote controller
9008300005
(TM-MC02)
Remote
Remote controller cable
controller
terminals
Terminals for
water heaters
• The parent/child DIP switch, No.1 on the lower bank of DIP switches, should be in the OFF
position.
his is the connection diagram between 510C and multi-unit controller for 2 to 20
• T
water heaters. Above is an example showing seven water heaters.
he multi-unit controller automatically allocates the unit # (1-20) to each water heater
• T
that is part of the Multi-Unit System.
• In a Multi-Unit System, connect the "[1]" connector and the "[2]" connector with the
communication cable (refer to p. 9) or 18 gauge wire cables. The total cable length can
be up to 250 ft. (76.2 m) long.
For detailed instructions on the multi-unit controller, refer to the
instructions that are packaged with the multi-unit controller.
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MULTI-UNIT SYSTEM

9008300005
(TM-MC02)
Cold IN
Example : 510C model x 7 units
Connectors Connectors
Lower bank of
Lower bank of
DIP switches
DIP switches
Communication cable
Connectors Connectors
Lower bank of Lower bank of
DIP switches DIP switches
Communication cable Communication cable
26
Page
Installation Manual
510C
Connectors
Connectors
Lower bank of
Lower bank of
DIP switches
DIP switches
Communication cable
Installation
Hot Out
Connectors
Lower bank of
DIP switches