State GTS-240-NIH - Manual (Page 32)

32
Page
EASY-LINK SYSTEM
(Available on the 540 (T-H3) models only)
The 540 (T-H3) models 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 540 (T-H3) 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
710 models (T-M32 / T-M32 ASME)
520 models (T-H2-DV / T-H2-OS)
540 models (T-H3-DV / T-H3-OS)
• When the 540 (T-H3) model is connected to other models listed above as
part of an Easy-Link System, contact the manufacturer.
• When the 710 (T-M32) and 540 (T-H3) are connected together in an Easy-Link
System, change DIPswitch No.6 on the lower bank of DIPswitches on the 540
(T-H3) model computer board to the "ON" position.
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 with the 540 (T-H3) model. The 540 (T-H3) model cannot be
combined together with other models not listed on the table above.
CAUTION
Due to the difference in the
connector type for the Easy-
Link System between the 710
(T-M32) and 540 (T-H3), cut out
the connectors for the Easy-
Link System and then splice the
wires directly together when
connecting the 710 (T-M32)
and 540 (T-H3) in the Easy-Link
System.
Easy-Link connectors
Wire
cutters