SVC 810 Tankless Troubleshooting Manual
71
Parts
Below are the most common replacement parts. For a complete list of all replacement
parts, please see the most current parts catalog.
Part Description Picture
Water Flow Inlet Valve Cold water inlet valve that
measures water temperature
and detects flow in gallons
per minute
Oxygen Depletion Sensing
Device (indoor models only)
Safety device that detects
improper combustion
(fuel-air mixture) and
attempts to fix it
Proportional Gas Flow
Regulator Valve
(P.G.R.F.)
Gas valve that modulates
and only allows the
amount of fuel needed to
heat the water being used
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