Forum Discussion
Old-Biscuit
Jun 01, 2016Explorer III
Water heater BYPASS needs to be CLOSED for normal operation (Bypass connects cold to hot)
Normal
Cold inlet OPEN
Bypass Closed
Hot outlet Open (if there is a shutoff valve vs just a check valve)
Bypass
Cold inlet Closed
Bypass Open
Hot outlet Closed (no valve then check valve stops flow back nto WH tank)
Normal
Cold inlet OPEN
Bypass Closed
Hot outlet Open (if there is a shutoff valve vs just a check valve)
Bypass
Cold inlet Closed
Bypass Open
Hot outlet Closed (no valve then check valve stops flow back nto WH tank)
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