Columbia L-24, Owner'S Manual, Page: 27 / 60

26
System Maintenance
O
Disconnect all incoming electrical power prior to servicing controls, pumps, or burner.
O
Use extreme caution around boiler piping since it may be hot.
O
The life of your boiler can only be measured by the care given to it by those who are charged with the
responsibility of boiler maintenance. A log book of the following items should be maintained in the
boiler room at all times.
Daily maintenance list
• Check operating pressures of water/steam, oil, and air.
• Check operating temperatures.
• Observe condition of flame.
• Check boiler water is at its proper operating level.
• Steam Process Boiler Only Blow down the boiler and low water cut off feeder (if equipped)
Weekly maintenance list
• Check fuel supply for leaks.
• Observe operation of circulating pump(s).
Monthly boiler check/maintenance list
• Safety relief valve - pull lever and confirm flow escapes.
• Inspect / Flush Oil filter and suction screen if oil flow appears to be obstructed
• Test operating and hi-limit controls and flame detection device.
• Check boiler room floor drains for proper operation.
• Inspect combustion air inlets of boiler room.
• Clean ash from inside boiler’s heating surfaces and chimney. Frequent cleaning will extend boiler life.
Ash produces acids harmful to metals and prevents clean combustion
• Check draft in chimney.
• Test low water cut-off.
• Check coil plate seals, gaskets, and piping for leaks.
• Check tempering valves, expansion tank, and secondary heat exchangers.
• Steam Heating Boiler Only Blow down the boiler and low water cut off feeder (if equipped)
Cleaning the Flue Passages
Under normal operating conditions the flue passages will need to be cleaned. If excessive soot has built up on
the flue passages they can be cleaned following this procedure.
1. Turn burner power off to prevent accidental burner firing. Remove the front cleanout door(s) and open
burner door. The WL-60 door will swing open simply by removing the 3 hex nuts on the handle side of
the door. If burner is hard piped, disconnect pipe fittings to allow door to swing freely. The L-24 has a
slightly different procedure. (see below) Care must be taken when removing these cleanout doors not to
damage the insulating millboard gasket.