CAC / BDP BW4BAH-91, Installation, Operation & Maintenance Manual

4

1. 

Read the Owner’s Manual for Safe Operation. Failure 

to follow rules for safe operation and instructions can 

cause malfunction of boiler and result in death, serious 

bodily injury, and/or property damage.

2. 

Check your local codes and utility requirements before 

installation. Installation must be in accordance with 

their directives, or follow NFPA 31  Installation of Oil 

Burning Equipment, latest revision.

3. 

Before servicing, allow boiler to cool. Always shut off 

any electricity and oil to boiler when working on it. 

4. 

Inspect oil line and connections for leaks.

5. 

Be certain oil burner nozzle is the size required. Over-

fi

 ring will result in early failure of the boiler sections. 

This will cause dangerous operation.

6. 

Never vent this boiler into enclosed space. Always vent 

to outside. Never vent to another room or inside a 

building.

7. 

Be sure there is adequate air supply for complete 

combustion.

8. 

Follow regular service and maintenance schedule for 

ef

fi

 cient and safe operation.

9. 

Keep boiler area clean and free of combustible material, 

gasoline and other 

fl

 ammable vapors and liquids.

10. 

Oil burners are not do-it-yourself items. This 

boiler must be installed and serviced by quali

fi

 ed 

professionals using combustion test instruments.

 WARNING

Burn and scald hazard.  Safety relief valve could       

discharge steam or hot water during operation.       

Install discharge piping per these instructions.

!

11. 

Be aware when piping the safety relief valve if system 

pressure exceeds safe limit of 30 pounds per square 

inch, the safety relief valve will automatically lift 

open. Lifting of the safety relief valve can discharge 

large quantities of steam and hot water, which may 

damage the surroundings. Before installing the safety 

relief valve read the manufacturer’s instructions and 

maintenance section of the manual on safety relief 

valves.

12. 

Installation and sizing of the expansion tank must 

consider heating systems total water volume, 

temperature, boiler initial 

fi

 ll pressure, and system 

arrangement. Improperly installed and sized expansion 

tank may result in frequent lifting of the safety 

relief valve or other heating system problems. For 

proper installation, sizing, and maintenance of the 

expansion tank follow guidelines established by tank 

manufacturer.

13. 

Expansion tank performance and life expectancy can 

be hindered by over

fi

 lling the boiler. Recommend initial 

fi

 ll pressure of 10-12 psig. For higher 

fi

 ll pressures 

expansion tank’s air charge will need to be increased to 

match 

fi

 ll pressure. Consult manufacturer’s guidelines 

for sizing and selection.

14. 

Purging the heating system of air and gases when 

fi

 rst putting boiler into service is critical for proper 

circulation and quiet performance. Once air and gases 

are purged, for boiler installations using 

fl

 oat type 

vents, air vents should be closed for normal operation. 

If air is heard or noticed by loss of heat, purge system 
and open vents for short period of time.

SAFE INSTALLATION AND OPERATION

NOTICE

This boiler has been designed for residential 

installations. If used for commercial applications, 

all jurisdictional requirements must be met. This 

may require wiring and/or piping modi

fi

 cations. 

Manufacturer is not responsible for any changes to 

the original design.

 WARNING

Fire, explosion, burn, scald hazard.  Use only 

number 2 fuel oil. Do not use gasoline, kerosene, 

crankcase oil or any oil containing gasoline. Failure 

to follow these instructions could result in death or 

serious injury.

!