Individual Unit Operation In Easy-Link System While Parent Unit Is Under Abnormal Conditions (Individual Operation Mode) Only 540 (T-H3) Models - A.O. Smith T-H3J-DV Service Manual

12-11. Individual unit operation in easy-link system while parent unit
is under abnormal conditions (Individual operation mode)
Only 540 (T-H3) models
In an easy-link system, if a parent unit undergoes abnormal conditions, the 540 (T-H3) models can
operate as individual units. If this happens, the minimum flow rate of the system changes from 0.5 GPM
to 0.5 GPM multiplied by the number of the 540 (T-H3) models. Refer to the following example:
Ex: Minimum flow rate of a four unit easy-link system.
Under normal conditions: 0.5GPM
When the parent unit fails: 0.5×4=2.0GPM
• Minimum flow rate of the easy-link system depends on the number of the units installed in the easy-
link system.
• The set temperature of each unit individual is the set temperature before the failed communication
happened between child unit and parent unit.
240 (T-H3J), 340 (T-H3S) and 540 (T-H3) models Service Manial
75
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CONFIDENTIAL
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