U.S. Boiler Company INDEPENDENCE, Installation, Operating And Service Instructions

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CAUTION
Probe type low water cutoff devices require annual inspection and maintenance! Although these devices
are solid state in their operation, the probe is exposed to possible contamination in the boiler water and
subject to fouling. Refer to Low Water Cutoff Service Instructions for complete, step-by-step inspection and
cleaning instructions.
WARNING
This boiler requires regular maintenance and service to operate safely. Follow the instructions
contained in this manual.
Improper installation, adjustment, alteration, service or maintenance can cause property damage,
personal injury or loss of life. Read and understand the entire manual before attempting installation,
start-up operation, or service. Installation and service must be performed only by an experienced,
skilled, and knowledgeable installer or service agency.
This boiler must be properly vented.
This boiler needs fresh air for safe operation and must be installed so there are provisions for
adequate combustion and ventilation air.
The interior of the venting system must be inspected and cleaned before the start of the heating
season and should be inspected periodically throughout the heating season for any obstructions. A
clean and unobstructed venting system is necessary to allow noxious fumes that could cause injury or
loss of life to vent safely and will contribute toward maintaining the boiler’s efficiency.
Installation is not complete unless a safety valve is installed. See the Piping and Trim Section of this
manual for details.
This boiler is supplied with safety devices which may cause the boiler to shut down and not re-start
without service. If damage due to frozen pipes is a possibility, the heating system should not be left
unattended in cold weather; or appropriate safeguards and alarms should be installed on the heating
system to prevent damage if the boiler is inoperative.
This boiler contains very hot water or steam under high pressure. Do not unscrew any pipe fittings
nor attempt to disconnect any components of this boiler without positively assuring the water is cool
and has no pressure. Always wear protective clothing and equipment when installing, starting up or
servicing this boiler to prevent scald injuries. Do not rely on the pressure and temperature gauges to
determine the pressure and temperature of the boiler. This boiler contains components which become
very hot when the boiler is operating. Do not touch any components unless they are cool.
Boiler materials of construction, products of combustion and the fuel contain alumina, silica, heavy
metals, carbon monoxide, nitrogen oxides, aldehydes and/or other toxic or harmful substances which
can cause death or serious injury and which are known to the state of California to cause cancer, birth
defects and other reproductive harm. Always use proper safety clothing, respirators and equipment
when servicing or working nearby the boiler.
Failure to follow all instructions in the proper order can cause personal injury or death. Read all
instructions, including all those contained in component manufacturers manuals which are provided
with the boiler before installing, starting up, operating, maintaining or servicing.
Keep boiler area clear and free from combustible materials, gasoline and other flammable vapors or
liquids.
All cover plates, enclosures and guards must be in place at all times.