Easy-Link System - Takagi 110U Indoor (T-KJr2U-IN) Installation Manual And Owner's Manual

The 510U (T-D2U) models water heaters can be connected with other 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 510U (T-D2U) 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 15,000 BTU/h and 796,000 BTU/h.
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
CAUTION
Easy-Link System. These models cannot be combined together with other
models not listed on the table above.
When the 510U (T-D2U) model is connected to other models listed above as
part of an Easy-link system with the
manufacturer.
WARNING
1. Verify the set temperatures of all units within the system. Every single water heater must be set to the
same set temperature.

EASY-LINK SYSTEM

(Available on the 510U (T-D2U) models only)
-General-
Easy-Link connection with allowable heaters
T-K3
T-K3-Pro
510 models (T-D2-IN / T-D2-OS)
510U models (T-D2U-IN / T-D2U-OS)
-Easy-Link Connection Procedures-
25
Hot Out
9008172005 (
TM-RE40), Contact the
Page
Installation Manual
Installation