PAGE 15
the burner opening. Carefully vacuum debris from the combustion chamber. Inspect
combustion chamber for signs of damage, i.e. cracks. In the event the combustion chamber
is damaged, replace it immediately. Failure to do so will cause pre mature failure of the unit,
and may result in personal injury. See figure 17 on page 16.
PERIODIC INSPECTION and tightening of the tankless heater/cover plate bolts will
reduce the risk of leaks. Refer to OBC series exploded heat exchanger drawing on page
18, part numbers x and x.
CAUTION:
Do not overtighten bolts.
INSTRUCTIONS FOR REMOVING OIL BURNER
1. Turn off power to boiler.
2. Allow boiler to cool down.
3. Remove three (3) 1/2" nuts from burner flange.
4. Close oil valve. See figures 13 and 14 on page 10.
5. Disconnect oil line from burner.
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 Start-up and Adjustment of Oil Burner
procedure.
INSTRUCTIONS FOR REPLACING OIL BURNER
CAUTION:
CAUTION:
CAUTION:
CAUTION:
CAUTION:
"USE ONLY NUMBER 2 FUEL OIL."
W
W
W
W
WARNING:
ARNING:
ARNING:
ARNING:
ARNING:
"DO NOT USE GASOLINE CRANKCASE DRAINGINGS OR
ANY OIL CONTAINING GASOLINE."
W
W
W
W
WARNING:
ARNING:
ARNING:
ARNING:
ARNING:
"DO NOT ATTEMPT TO START THE BURNER WHEN
EXCESS OIL HAS ACCUMULATED, WHEN THE UNIT IS FULL OF VAPOR, OR
WHEN THE COMBUSTION CHAMBER IS VERY HOT."
1. Reconnect oil line.
2. Open oil valve. See figures 13 and 14 on page 10.
3. Install and tighten three (3) 1/2" nuts on the burner flange.
4. Turn on power to boiler.
5. Bleed the oil line.
