Lochinvar 140H, Инструкция по установке и руководство пользователя

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MULTI-UNIT SYSTEM
Multiple 540H models can be combined for a Multi-Unit System, along with the multi-unit controller (Part
100112691 (TM-MC02)). The multi-unit controller 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 13,000 BTU/h
(Propane) or 15,000 BTU/h (Natural gas) 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 with the remote controller wiring:
• DIP switch settings: Default position (It does not need adjustment.)
• This is the connection diagram for a 540H model and a multi-unit controller in the Multi-Unit System. The
example above shows three water heaters.
• The multi-unit controller automatically allocates the unit # (1-20) to each water heater in the Multi-Unit
System.
• In a Multi-Unit System, connect the “ [1] ” connector and the “ [2] ” connector with the communication cable
(refer to page 9) or 18 gauge wire cables. The total cable length can be up to 250 ft (76.2 m) long.
• In a Multi-Unit System, 540H models can only be connected with other 540H models or 710 models.
• The multi-unit controller allocates random numbering. See the controller instructions to learn how to
renumber the system units sequentially.
OF
F
ON
1 1
1
2 2 2
PARENT
PARENT PARENT
1
2
3
4
5
6
Connectors Connectors Connectors
OF
F
ON
OF
F
ON
Lower bank of
DIP switches
Lower bank of
DIP switches
Lower bank of
DIP switches
1
2
3
4
5
6
1
2
3
4
5
6
Communication cable
Remote controller cable
Unit 1
Unit 2 Unit 3
Remote controller
supplied with controller
Terminals for
water heaters
100112691
(TM-MC02)
Remote controller
terminals
Cold IN
Hot Out
540H
100112691
(TM-MC02)
• For
detailed instructions on the multi-unit controller, refer to the instructions that
are packaged with the multi-unit controller.
• If 710 and 540H models are to be connected together in a Multi-Unit System, refer to the
installation manual of the multi-unit controller for more details.
NOTICE
Installation
Installation Manual