John Wood Takagi - 240H-340H-540H - Manual (Page 26)

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EASY-LINK SYSTEM
(Available on the T-H3-DV / 540H Indoor only)
The T-H3-DV / 540H water heaters can be connected with allowable heaters (see the table below)
with communication cables to work as a multiple-unit manifold system.
• The Easy-Link system allows up to 4 units to manifold together.
• A communication cable (gray color) comes with each T-H3-DV / 540H model.
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 13,000 BTU/h (Propane) or 15,000 BTU/h (Natural gas)
to 796,000 BTU/h.
-Easy-Link Connection Procedures-
1. Verify the set temperatures of all units within the system. Every single water heater must be set to the
same set temperature.
Installation
Installation Manual
-General-
Easy-Link connection with allowable heaters
T-H2-DV / 520H
T-H3-DV / 540H
When the T-H3-DV / 540H is connected to previous models as part of an Easy-
link system, Contact the manufacturer.
WARNING
Hot Out
Gas In
Cold In
• The Easy-Link system is limited 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.
• Only listed models on the table above can be combined together as an Easy-
Link System. Different models cannot be combined together to form an
Easy-Link System.
CAUTION