750-204
Profire D/LND
5-11
5.15 — Maintenance Flow Chart Recommended Test Schedule
5.15 — Maintenance Flow Chart Recommended Test Schedule
Item Service By Remarks
DAILY
Gauges, Monitors, Indicators Operator Make visual inspection and record readings in log.
Instrument and Equipment Settings Operator Make visual check against recommended specifications.
Low Water, Fuel Cutoff, Alarms Operator Refer to instructions.
WEEKLY
Firing Rate Control Operator Verify factory settings.
Igniter Operator Make visual inspection. Check flame signal strength.
Pilot and Main Fuel Valves Operator Open limit switch. Make audible and visual check. Check
valve position indicators, and check fuel meters.
Flame Failure Controls Operator Close manual fuel supply for (1) pilot and (2) main fuel
cock and/or valve(s). Check safety shutdown timing.
Record in log.
Flame Signal Strength Controls Operator Read and log the flame signal for both pilot and main
flame. Notify Service if readings are very high, very low,
or fluctuating.
Linkages Operator Check all burner linkages for tightness. Tighten if
required.
MONTHLY
Low Fan Pressure Interlock Operator Manually adjust until switch opens.
High and Low Gas Pressure Interlocks Operator Refer to instructions. Manually adjust until switch opens.
Scanner and Diffuser Operator Check, inspect and clean for soot buildup.
Pilot Assembly Operator Check for loosening of components, erosion, or carbon
buildup.
ANNUALLY
Strainer (Oil Units) Operator Replace or clean the oil strainer element.
Impeller Operator Inspect and clean the combustion impeller.
Combustion Test Service Tech Perform a complete combustion test. Adjust burner if
necessary. Read and log data.
Pilot Turndown Test Service Tech Required after any adjustment to flame, scanner, or pilot
adjustment.
Operating Controls Service Tech Refer to instructions.
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