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A. Pressure Control - Remove cover and note pressure
setting. With boiler operating, decrease the setting.
When the setting is lower than boiler pressure, the
control will open and turn off the boiler. After checking
pressure control, reset control to original setting.
B. Mechanical Low Water Cut-off - May be checked
by opening the blow-off valve on the lower portion of
the cut-off body while the boiler is running. This will
drain the water from the boiler and break the circuit
to the burner.
WARNING
WATER WILL BE BOILING HOT.
Refill boiler to its normal water line.
C. Primary Control and Flame Sensor -
To Check:
1. Flame Failure - simulate by shutting off oil
supply with hand valve while burner is on. Sixty
seconds after flameout, the safety switch locks
out, ignition stops, motor stops and oil valve -
when used - closes. To restart, open oil supply
valve and reset safety switch.
2. Ignition Failure - With burner off, close oil supply
valve and run through start-up procedure, The
safety switch should lock out as in flame failure.
3. Power Failure - Turn off main power supply
switch while burner is operating. When burner
stops, restore power and burner should start. If
operation is not as described as above, check
wiring and controls.
Preventative maintenance of an oil fired boiler reduces
operating costs. The boiler and vent pipe should be
inspected for accumulation of soot or scale deposits
periodically but at least once every year before the start
of each heating season. When soot is present on the
section walls and flueways, improper combustion will
result, causing additional sooting and scaling until
flueways are completely closed. To remove soot and
scale from the flueways, remove top jacket panel, top
clean-out plate, open burner swing door.
(Figure 12)
OPENING THE BURNER SWING DOOR
1. Turn off power to boiler and allow boiler to cool down.
2. Disconnect power cable at factory supplied burner
electrical disconnect.
(Figure 12)
3. Loosen screws on the sides of the lower front
jacket panel.
(Figure 6)
Pull the bottom part of the
lower front panel forward and lift the lower front panel
up and off the boiler.
(Figure 12)
4. Close oil valve
(Figures 10-11)
and disconnect oil
line from burner.
IMPORTANT:
Do not open swing door with oil line attached.
5. Remove nut from swing door stud on right hand
side of door.
6. Swing open burner and door to the left. Using a
flue brush, brush the soot and scale into the
combustion space where it can be removed through
the swing door opening.
CAUTION
Use caution when vacuuming in the chamber
area. Damage to chamber could result.
It is recommended to replace the nozzle at the start
of each heating season. Lubricate the burner motor
and circulator motor - if required - with a few drops of
a good grade of light motor oil. Do not over oil. Have
a competent service person service the burner and
check the controls and check the electrodes for
carbon or cracks in the insulators. Burners should be
adjusted to produce the conditions shown in
"Startup
and Adjustment of Oil Burner."
CLOSING THE BURNER SWING DOOR
1. Swing burner and door to the right until insulation
is slightly compressed and the stud is exposed.
2. Attach nut to the stud and tighten it until the built
in stop contacts the mounting door.
3. Reconnect oil line to burner.
4. Replace lower jacket panel, and tighten the screws.
5. Connect the power cable at the factory supplied
burner electrical disconnect.
6. Turn on power to boiler and bleed oil line.
