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Scientifically Matched Boiler Burner Unit
Every detail of the 4500A Boiler Burner unit for oil and gas is the result of years of
research and development. The boiler, the burner, the draft system, the control system,
and the combustion chamber are completely compatible. The 4500A offers a choice of four
burners from top manufactures, each tailored for maximum efficiency and tested and listed
by I.B.R. Single source responsibiliry can be assured, whether your fuel choice be #2 thru
#6 oil or gas. Each unit is backed by factory service technicians from a factory service
force formed in 1960. A wide variery of control panel options, draft systems and ill. fans
can be tailored for most any need, no other cast iron boiler company can offer you all these
features.
STANDARD EQUIPMENT
Boiler
- 4500A Mills header-type cast iron sectional boiler
- Foundation front plate, with observation ports, ready to receive burner
- Insulated metal jacket
Burner
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Choice of Preferred Utilities Injectaire, Industrial Combustion Model D or
Webster Model JB forced draft burners for all grades of fuel oil, gas or
combination gas/oil, or Powerflame Model C pressure atomizing burners for light oil,
gas or combination gas/light oil.
Water Boilers
- 80 psi working pressure
- Manual reset high limit temperature control
- Operating temperature control
- Firing rate control
- Pressure altitude gauge
- 4 1/2" remote reading dial-thermometer
- A.S.M.E. relief valve set at 40 psi
- Dip tube, air removal fittings and manual vent valve
- Low water cutoff with precut ferrous pipe and necessary fittings
- Precast combustion chamber, precut block insulation, vent tile, and refractory pellets
- Flexible return yoke
- Two 1 1/2" brass ball-type drain valves
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Programming-type flame safeguard control,motor starters,
low fire start relay (oil) service switch, two pilot lights (power and main fuel),
and terminal strip for easy field wiring.
- Control panel location and type varies with burner selected and components chosen.
Steam Boilers
- Manual reset high limit pressure control
- Operating pressure control
- Firing rate control
- Pipe tree with syphon for controls
- Pressure gauge with syphon (0-15 psi)
- A.S.M.E. side outlet safety valve (15 psi)
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Combination water column-type pump controller and low water cutoff with precut ferrous
piping and necessary fittings.
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Mills 451 Brochure (84K)
