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1.High limit control - Remove the temperature control cover as needed and note temperature setting. With the burner running reduce the high limit setting until the burner shuts off. Return the high limit to its original setting.
2.To check the primary control and flame sensor shut off oil supply with hand valve while burner is running, fifteen seconds after flameout, the safety switch locks out, ignition stops and the oil valve should close. To restart, open oil supply value and reset safety switch.
Maintenance
IMPORTANT
Escaping gasses are dangerous. A qualified serviceman should inspect the entire flue and venting system at least once a year.
Do not use the boiler if any part has been under water. Call a qualified service technician to inspect the boiler and replace any part of the control system, which has been under water.
Never operate this appliance with any safety switches altered or disabled. Never attempt to modify this appliance in any fashion.
Oil Filter
The oil filter cartridge should be replaced annually.
Boiler
At the beginning of each heating season, the boiler flue passages and the oil burner should be checked for cleanliness and if necessary they should be cleaned. The following procedure is required for inspection and cleaning the boiler flue passages.
1.Turn off all electrical power to the boiler before inspecting and cleaning.
2.Disconnect the Molex plug at burner.
3.Remove the boiler front jacket panel by lifting vertically.
4.Open the swing door following previously described procedure.
5.If required remove scale and any soot deposits with a flexible flue brush. Vacuum all deposits from flue passages and chamber area. Be careful not to damage the door insulation.
6.Close swing door following previously described procedure. Check to ensure a proper seal between the door and the boiler has been made.
7.Eliminate any combustion gas leaks by replacing worn seals and gaskets.
8.Install jacket front panel.
9.Connect Molex plug for burner power.
10.Avoid emptying the heating system. Introduction of fresh water will only add contaminates which will increase the possibility of rust and scale.
11.Protect the heating system against freezing dangers with
12.Check the piping system for leaks and repair as required. This will prevent water turnover with consequent risk of scale formation and corrosion in the boiler room.
13.Lift the lever of the pressure relief valve on the boiler to make sure that it is functioning properly. The pressure relief valve should be open before the water pressure exceeds the 30PSI. If the relief valve is leaking, replace immediately. Corrosion can build up rapidly at the valve seat and prevent its functioning as a safety device.
Oil Burner
1.Thoroughly clean the burner fan blades. Only with clean fan blades is proper combustion air delivery possible.