Burnham operating and, Installation, Operating And Service Instructions

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DANGER
DO NOT store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other
appliance.
WARNING
Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal
injury or loss of life. Failure to follow all instructions in the proper order can cause personal injury or
death. Read and understand all instructions, including all those contained in component manufacturers
manuals which are provided with the appliance before installing, starting-up, operating, maintaining or
servicing this appliance. Keep this manual and literature in legible condition and posted near appliance
for reference by owner and service technician.
This boiler requires regular maintenance and service to operate safely. Follow the instructions contained
in this manual. Installation, maintenance, and service must be performed only by an experienced, skilled
and knowledgeable installer or service agency. All heating systems should be designed by competent
contractors and only persons knowledgeable in the layout and installation of hydronic heating systems
should attempt installation of any boiler. It is the responsibility of the installing contractor to see that all
controls are correctly installed and are operating properly when the installation is completed. Installation
is not complete unless a pressure relief valve is installed into the specified tapping located at the rear of
appliance - See Section III of this manual for details.
This boiler is suitable for installation on combustible flooring. Do not install boiler on carpeting. Do not
operate on floors where heat affected material is below.
Do not tamper with or alter the boiler or controls. Retain your contractor or a competent serviceman to
assure that the unit is properly adjusted and maintained.
Clean boiler at least once a year - preferably at the start of the heating season to remove soot and scale.
The inside of combustion chamber should also be cleaned and inspected at the same time.
Have Burner and Controls must be checked at least once a year or as may be necessitated.
Do not operate unit with jumpered or absent controls or safety devices.
Do not operate unit if any control, switch, component, or device has been subject to water.
Return water cannot be lower than 135°F for prolonged periods of time. Operation under these conditions will
result in sustained condensing within the combustion chamber and potentially reduce boiler longevity.
In addition, the return water cannot be introduced into the boiler if it is more than 40°F less than the idle
boiler temperature. Continued operation under these conditions may result in premature boiler failure
through thermal shock.
Example: A boiler that has been idle for some time since the last heat demand cycle may have it’s boiler
water temperature reduced to 150°F. The return temperature from the next zone activation cannot be
less than 110°F.
If the above conditions exist, an RTC (or similar type of control) system must be installed to protect
the boiler from sustained condensing operation and thermal shock. See separate RTC Manual, P/N
8146382.