Preventive Maintenance Work Plan Chart Page 11
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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
Steam Powered Domestic Hot Water Heater
Critical Tasks, to be performed weekly
Frequency Status
Date Completed Initials
Visually inspect all piping and valves, check for leaks.
W
Ensure that controls maintain setpoint.
W
Check insulation on heater, repair as necessary.
W
Check operation and condition of pressure relief valve.
SA
With unit under load, inspect for leaks and any signs of abnormal operation.
SA
Drain unit until all sediment and discolored water is expelled.
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
Clean, test and inspect sight glasses, valves, fittings, drains and controls.
SA
Check steam control valves and steam traps for proper operation.
SA
Check electrical wiring connections on controls and switches.
SA
Exercise all manual isolation valves, as applicable, over full range and ensure full closure.
SA
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