Installation Guide

24 Page
EASY-LINK SYSTEM
(Available on the 510C model only)
-General-
The 510C model water heaters can
be connected together to work as a
multiple-unit manifold system.
You can manifold from 2 to 4 units
without the need for a multi-unit
controller. A 4-unit system has full
automatic modulation between 15,000 BTU/h and 796,000 BTU/h.
 The Easy-Link System is limited to up to 4 units. If you connect more than 4 units,
only the first 4 units will work as a part of the Easy-Link System. The other additional
units will not work.
 A remote controller is not required for an Easy-Link System. However, it does provide
for more temperature options and ease of maintenance.
 If a remote controller is used, the temperature on all the units in the system will auto-
matically be set to the same temperature that is set on the remote.
 When a remote is used in an Easy-Link System, it must be connected to the parent unit.
 Only one remote can be connected.
NOTICE
-Easy-Link Connecon Procedures-
1. Make sure the power to the heaters is turned off.
2. Verify the DIP switch set temperatures of all units within the system. Every water heater must be set to
the same set temperature. If a remote controller (100209924/TM-RE42) is used, it should be installed
to the “PARENT” unit. The remote will set the temperature for the entire system.
3. Select one unit to be the “PARENT” unit. The “PARENT” unit should be one of the end units.
4. “PARENT” unit:
Locate the two banks of DIP switches at the bottom left of the computer board of the unit that you
select to be the “PARENT” unit. Change DIP switch No. 1 on the lower bank of DIP switches to the
ON position. See the computer board diagram as shown on the next page. Do not change any DIP
switches on any of the “CHILD” units.
5. Between the “PARENT” and the “CHILD-1” units:
Connect the “PARENT” connector of the “PARENT” unit to the “1” connector of the “CHILD-1” unit
using the supplied linking cable.
6. Between the “CHILD-1” and the “CHILD-2” units:
Connect the “2” connector of the “CHILD-1” unit to the “1” connector of the “CHILD-2” unit.
7. Between the “CHILD-2” and the “CHILD-3” units:
Connect the “2” connector of the “CHILD-2” unit to the “1” connector of the “CHILD-3” unit.
8. Verify that all cables are connected like the diagram (B).
9. Turn on power to the “PARENT” unit.
Next, turn on “CHILD-1”. When the built-in controller installed in “CHILD-1” unit displays a number,
turn on “CHILD-2”.
Installaon
Installaon Manual
Hot Out
Cold In
Gas In
 The built-in Easy-Link System
allows up to 4 units to manifold
together (connected with com-

 
color) comes with each 510C
model.