Glossary - Baxi LUNA DUO-TEC 60 GA Installation Instructions For The Installer

14 - GLOSSARY

• APPLIANCE - Device to convert gas into energy; term includes any component, control, wiring, piping or tubing required to be
part of the device.
• ANSI - American National Standards Institute, Inc. over see's creation and maintenance of voluntary consensus standards,
including ANSI Z21.13/CSA 4.9: Gas-Fired Low Pressure Steam and Hot Water Boilers.
• ASME - Association of Mechanical Engineers Establishes rules of safety governing the design, fabrication, and inspection of
boilers and pressure vessels, determining the MAWP of such vessels.
• ASTM - American Society for Testing and Materials. ASTM International is one of largest voluntary standards development
organizations in world trusted source for technical standards for materials, products, systems, and services. Known for their high
technical quality and market relevancy, ASTM International standards have important role in information infrastructure that guides
design, manufacturing and trade in the global economy.
• AUTHORITY HAVING JURISDICTION - Individual or organization adopting and enforcing codes, rules, and by-laws governing
various concerns of community. Commonly referred to as "final authority" for any matters relating to LIFE SAFETY and BUILDING
CONSTRUCTION within a community.
• BOILER - Appliance intended to supply hot liquid for space-heating, processing or power purposes.
• BTU - Abbreviation for British Thermal Unit. Quantity of heat required to raise temperature of 1 pound of water 1°F.
• BURNER - Device for final conveyance of gas or mixture of gas and air, to combustion zone.
• CALIBRATE - Make fine adjustments or divide into marked intervals for optimal measuring.
• COAXIAL VENTING Sharing the same center.
• COMBUSTION - Rapid oxidation of fuel gases accompanied by production of heat or heat and light. Complete combustion of fuel is
possible only in presence of adequate supply of Oxygen.
• COMBUSTIBLE MATERIAL - Materials made of or surfaced with wood, compressed paper, plant fibers, or other materials
capable of being ignited and burned. Such material shall be considered combustible even though flame-proofed, fire-retardant
treated, or plastered.
• COMBUSTION AIR - Air that is drawn into an appliance to mix with fuel and support combustion.
• CONDENSATE - Liquid separated from flue gas due to reduction in temperature.
• DIRECT VENT BOILER - Boiler constructed and installed so all combustion air is derived directly from outdoors and all vent
gases are discharged to outdoors.
• DOMESTIC - Relating to household usage as opposed to commercial usage.
• DOMESTIC WATER - Potable drinking water - tap water.
• DRAFT - Pressure difference causes gases or air to flow through a chimney, vent, flue or appliance.
• FLA - Full load amps.
• FLUE - Enclosed passageway for conveying combustion gases.
• FLUE GASES - Products of combustion plus excess air in appliance flues or heat exchanger.
• GAS SUPPLIER - Party that sells commodity of Natural Gas (Gas A) or LPG (Gas E).
• HIGH-VOLTAGE - Circuit involving potential of not more than 600 volts and having circuit characteristics in excess of those of
low-voltage circuit.
• HYSTERESIS (DIFFERENTIAL) - Difference between the temperature at which the thermostat switches off - and the
temperature at which it switches on again.
• IGNITER - Device utilizing electrical energy to ignite gas at main burner.
• LEAK CHECK - Operation performed on gas piping system to verify system does not leak.
• LICENSED QUALIFIED INSTALLER / SERVICE TECHNICIAN - any individual, firm, corporation or company that either
directly or through a representative is engaged in the installation, replacement, repair or servicing of gas piping, venting systems,
appliances, components, accessories, or equipment, and whose representative is experienced and trained, in such work and has
complied with the requirements of the authority having jurisdiction.
• LOW WATER CUTOFF - Device constructed to automatically cut off fuel supply when surface of water in boiler falls to lowest safe
water level.
• LOW-VOLTAGE - Circuit involving potential of not more than 30 volts.
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