Product Overview

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103859-12 - 8/19
MPO-IQ
Installation & Service Manual
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 boiler before installing, starting-up, operating, maintaining or servicing this boiler.
Keep this manual and literature in legible condition and posted near boiler 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.
• Installation is not complete unless a pressure relief valve is installed into the 3/4" tapping located on return
injector assembly that was installed into boss on top of rear section - See "Packaged Boiler Assy - Trim &
Controls", and "Water Boiler Piping" Sections of this manual for details.
• 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.
• This boiler is suitable for installation on combustible flooring. Do not install boiler on carpeting.
• Do not tamper with or alter the boiler or controls.
• Inspect flueways at least once a year - preferably at the start of the heating season. The inside of
the combustion chamber, the vent system and boiler flueways should be cleaned if soot or scale has
accumulated. When cleaning this boiler, take precaution to avoid damage to burner swing door insulation.
If damaged, or if there is evidence of previous damage, burner swing door insulation must be replaced
immediately.
• Oil Burner and Controls must be checked at least once a year or as may be necessitated.
• Do not operate boiler with jumpered or absent controls or safety devices.
• Do not operate boiler if any control, switch, component, or device has been subject to water.
• Boiler construction materials, 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 appliance.
• This boiler contains very hot water 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 temperature and
pressure 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.
DANGER
DO NOT store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other
appliance.
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