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IM-BW4-5-02
[240013014 Rev. B [12/15/2020]
Introduction
This boiler is a natural draft oil fired hot water boiler
comprised of cast iron sections. Boiler is available with 3, 4,
or 5 cast iron sections. These sections are held together by
cast iron push nipples.
This boiler is capable of firing #2 fuel oil from 0.80 gph
up to 1.55 gph. All packaged boilers include a swing door,
Honeywell limit control, temperature and pressure gauge,
safety relief valve, drain valve, flue brush, and extra boiler
tap for expansion tank or air elimination.
These low pressure oil fired hot water boilers are
constructed and hydrostatically tested for maximum
working pressure of 50 psig (pounds per square inch)
in accordance with the latest revision of the A.S.M.E.
(American Society of Mechanical Engineers)
Boiler and
Pressure Vessel Code Section IV Standards for heating
boilers.
Heating Capacity indicates amount of heat available after
subtracting losses up the stack. Most of this remaining
heat is available to heat water. A small portion is heat from
the jacket and boiler surface and it is assumed that this
heat stays in the structure. Net AHRI Rating represents
portion of remaining heat that can be applied to heat
radiation or terminal units ( finned tube baseboard, cast
iron radiators, radiant floor, etc.). Difference between
Heating Capacity and Net AHRI Rating, called piping and
pickup allowance, establishes reserve for heating volume
of water in the system and off-setting heat losses from
system piping. Net AHRI Rating of the boiler selected
should be greater than or equal to calculated peak heating
load (heat loss) for building or area(s) served by the
boiler and associated hot water heating systems. Consult
manufacturer before selecting boiler for installations having
unusual piping and pickup requirements.
TABLE OF CONTENTS
Save this manual
for reference.
Contents
Boiler Ratings And Capacities ................................3
Safety Notices .....................................................4
Safe Installation And Operation .............................5
Locating The Boiler ..............................................6
Fresh Air For Combustion......................................
System Piping ...................................................10
Antifreeze In The System ...................................17
Chimney And Chimney Connections .....................
Typical Chimney Connection ................................19
Electrical Connections ........................................20
Electrical Wiring ................................................21
Filling The Boiler ..............................................22
Operating The Boiler ........................................23
Preliminary Burner Settings ................................24
Burner Adjusments And Settings .........................25
Checking And Adjusting Controls .........................26
Maintenance .....................................................27
Oil Boiler Cleaning Instructions ...........................
Oil Burner Cleaning ............................................29
Service Hints ....................................................30
Pump Curve ......................................................31
For Parts lists see manual
IM-BW4-02
included with your boiler literature package.
