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EASY-LINK SYSTEM
The 540P model water heater can be connected to 540 models as only a
PARENT
unit in an Easy-
Link System.
•
The built-in Easy-Link System allows up to 4 units to manifold together.
•
Only one 540P can be installed in an Easy-Link System.
•
A communication cable (gray color) comes with each 540 model.
You can manifold from 2 to 4 units. A 4-unit system has full automatic modulation between
13,000 BTU/h (Propane) or 15,000 BTU/h (Natural gas)to 796,000 BTU/h.
Type of unit
Model
Allocated No.
from controller
PARENT
540P
1
CHILD-1/2/3
540
2,3,4*
*Each CHILD unit is allocated the above num-
ber from controller, which indicates on the
display of the controller on the unit. (Refer
to p. 65.)
Hot Out
Gas In
Cold In
Return
Line
•
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.
•
In the Easy-Link System, one unit must be designated as a PARENT unit by
changing one of its DIP switch settings. The other units are CHILD units. The
540P model must be a PARENT unit and cannot be a CHILD unit. (The 540
model can be either a PARENT unit or a CHILD unit.)
•
A 540P model only can be connected to 540 models when 540P is a PARENT unit in
the system.
•
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 connection procedures for 540P & 540 models-
1. Make sure the power to the heaters are off.
2. Verify the DIP switch set temperatures of all units within the system. Every single water heater
must be set to the same set temperature. If a remote controller is used, it should be installed to the
“PARENT”
unit. The remote will set the temperature for the entire system. When the 540P model is
the
“PARENT”
unit, the only controller that can be used is the
100276687 (TM-RE43)
.
3. Select 540P unit to be the
“PARENT”
unit. The
“PARENT”
unit should be one of the end units.
4.
“PARENT”
unit:
On the 540P that you select to be the
“PARENT”
unit, locate the three banks of DIP switches at the
upper left of the computer board. Change
DIP switch No. 1
on the
middle 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.
Installation
Installation Manual
