Preventive Maintenance Work Plan Chart Page 26
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35Preventive Maintenance Work Plan
Frequency Key
W – Weekly
M - Monthly Q - Quarterly
SA- Semi-Annually A- Annually SST - Seasonal Start-Up SSH - Season Shut Down
Gas Fired Domestic Hot Water Heater
Critical Tasks
Frequency Status
Date Completed Initials
Visually inspect all piping and valves, check for leaks.
W
Ensure that controls maintain set point.
W
Check insulation on heater, repair as necessary.
W
Drain unit until all sediment and discolored water is expelled.
SA
With unit under load, inspect for leaks and any signs of abnormal operation.
SA
Inspect tank exterior, fittings and hand-holes for signs of corrosion.
SA
Ensure that mixing valves operate as intended.
SA
Operate and inspect all control linkages. Adjust and lubricate linkages as necessary.
SA
Inspect and clean combustion air passages.
SA
Test operation of gas pressure regulator and adjust setting if necessary.
SA
Clean, test and inspect sight glasses, valves, fittings, drains and controls.
SA
Inspect ignition and pilot assembly. Clean and adjust igniter if necessary.
SA
Exercise all manual isolation valves, as applicable, over full range and ensure full closure.
SA
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