2
Part Number 550-110-832/1014
OWB & OWT
Series 2
Oil-Fired Water Boilers –
Boiler Manual
Installations must follow these codes:
• Local, state, provincial, and national codes, laws, regulations
and ordinances.
• NFPA-31, Installation of Oil-Burning Equipment.
• Standard for Controls and Safety Devices for Automatically
Fired Boilers, ANSI/ASME CSD-1, when required.
• National Electrical Code.
Before locating the boiler:
❏
Check for nearby connection to:
• System water piping
• Venting connections (page 6)
• Combustion and ventilation air provisions (page 4)
• Oil supply piping (page 14 and burner manual)
• Electrical power
❏
Check area around boiler. Remove any combustible materials,
gasoline and other flammable liquids.
Failure to keep boiler area clear and free of
combustible materials, gasoline and other flammable
liquids and vapors can result in severe personal
injury, death or substantial property damage.
❏
Boiler must be installed so that burner and control system
components are protected from dripping or spraying water or
rain during operation or service.
❏
If new boiler will replace existing boiler, check for and correct
system problems, such as:
1. System leaks causing oxygen corrosion or section cracks
from hard water deposits.
2. Incorrectly-sized expansion tank.
3. Lack of antifreeze (when required) in boiler water causing
system and boiler to freeze and leak.
Codes & checklist
Failure to adhere to the guidelines below
can result in severe personal injury, death or
substantial property damage.
When servicing boiler —
1. To avoid electric shock, disconnect electrical supply
before performing maintenance.
2. To avoid severe burns, allow boiler to cool before
performing maintenance.
Boiler operation —
3. Do not block flow of combustion or ventilation air to boiler.
4. Should overheating occur, do not turn off or disconnect
electrical supply to circulator. Instead, shut off the oil
supply at a location external to the appliance, if possible.
5. Do not use this boiler if any part has been under water.
Immediately call a qualified service technician to inspect
the boiler and to replace any part of the control system
and any burner control that has been under water.
Boiler water —
6. DO NOT use petroleum-based cleaning or sealing
compounds in boiler system. Water seal deterioration will
occur, causing leakage between boiler sections, circulator
flanges, diaphragm tanks or other system components.
This can result in substantial property damage.
7. DO NOT use “homemade cures” or “boiler patent
medicines”. Serious damage to boiler, personnel and/
or property may result.
8. Continual fresh makeup water will reduce boiler life.
Mineral buildup in sections reduces heat transfer,
overheats cast iron, and causes section failure. Addition
of oxygen and other gases can cause internal corrosion.
Leaks in boiler or piping must be repaired at once to
prevent makeup water.
9. Do not add cold water to hot boiler. Thermal shock can
cause sections to crack.
Glycol — potential fire hazard —
All glycol is flammable when exposed to high temperatures. If
glycol is allowed to accumulate in or around the boiler or any
other potential ignition source, a fire can develop. In order to
prevent potential severe personal injury, death or substantial
property damage from fire and/or structural damage:
• Never store glycol of any kind near the boiler or any
potential ignition source.
• Monitor and inspect the system and boiler regularly
for leakage. Repair any leaks immediately to prevent
possible accumulation of glycol.
• Never use automotive antifreeze or ethylene glycol in
the system. Using these glycols can lead to hazardous
leakage of glycol in the boiler system.
1 Prepare boiler location
Read this first!
