Burnham V7 SERIES manual IM PO Rtant, Frequent Water Addition

IM PO RTANT

SUCTION LINE LEAKS - THE OIL MUST BE FREE OF AIR. Try bleeding the pump through a clear tube. There must be no froth visible. There are various test kits available to enable you to look at the oil through clear tubing adapted to the supply line at the pump fitting. Air eliminators are on the market that have potential. Also, electronic sight glasses are being used with good success. At times, new tubing must be run to the tank or new fittings put on. Just make sure you get the air out.

Any air leaks in the fuel line will cause an unstable flame and may cause delayed ignition noises. Use only flare fittings in the fuel lines.

10.START-UP NOISE — Late ignition is the cause of start-up noises. If it occurs recheck for electrode settings, flame shape, air or water in the fuel lines.

11.SHUT DOWN NOISE — If the flame runs out of air before it runs out of fuel, an after burn with noise may occur. That may be the result of a faulty cut-off valve in the fuel pump, or it may be air trapped in the nozzle line. It may take several firing cycles for that air to be fully vented through the nozzle. Water in the fuel or poor flame shape can

also cause shut down noises.

clean water to prescribed water level.

4.Always keep the manual fuel supply valve shut off if the burner is shut down for an extended period of time.

5.To recondition the heating system in the fall season after a prolonged shut down, follow the instructions outlined in Section IV, Items A through M.

CAUTION

This boile r contains controls w hich may cause the boiler to shut down and not res ta rt without se rv ice. If damage due to froze n pipes is a possibility, the heating system should not be left unattended in cold we ather; or appropriate safeguards and alarms s hould be installed on the he ating system to prevent damage if the boile r is inope rative.

Q.FREQUENT WATER ADDITION

IMPORTANT

CHECK TEST PROCEDURE. A very good test for isolating fuel side problems is to disconnect the fuel system and with a 24" length of tubing, fire out of an auxiliary five gallon pail of clean, fresh, warm #2 oil from another source. If the burner runs successfully when drawing out of the auxiliary pail then the problem is isolated to the fuel or fuel lines being used on the jobsite.

P.ATTENTION TO BOILER WHILE NOT IN OPERATION.

1.IMPORTANT

IF BOILER IS NOT USED DURING WINTER TIME, IT MUST BE FULLY DRAINED TO PREVENT FREEZE DAMAGE.

2.Spray inside surfaces with light lubricating or crankcase oil using gun with extended stem so as to reach all corners.

3.With steam boilers, at end of season add sufficient water to fill boiler to top of water column and leave it that way until fall when water should be drained again to proper level. If at this time boiler water is dirty, drain water, flush out boiler, and refill with

A leaky system will increase the volume of make-up water supplied to the boiler which can significantly shorten the life of the boiler. Entrained in make-up water are dissolved minerals and oxygen. When the fresh, cool make-up water is heated in the boiler the minerals fall out as sediment and the oxygen escapes as a gas. Both can result in reduced boiler life. The accumulation of sediment can eventually isolate the water from contacting the cast iron. When this happens the cast iron in that area gets extremely hot and eventually cracks. The presence of free oxygen in the boiler creates a corrosive atmosphere which, if the concentration becomes high enough, can corrode the cast iron through from the inside. Since neither of these failure types are the result of a casting defect the warranty does not apply. Clearly it is in everyone’s best interest to prevent this type of failure. The maintenance of system integrity is the best method to achieve this.

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