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• METRIC GAS METERS
Natural Gas
127,116 x
MBH
=
Seconds
For example: Gas Meter measures 0.1 cubic Meters in 100 seconds
127,116 x 0.1
MBH
=
100
Propane Gas (LP)
383,482 x
MBH
=
Seconds
• NATIONAL BOARD OF BOILER AND PRESSURE VESSEL INSPECTORS - Group composed of boiler and pressure
vessel inspectors representing states, cities and provinces enforcing pressure equipment laws and regulations.
• PRESSURE TEST - Operation performed to verify gas tight integrity of gas piping following its installation or modification.
• PURGE - To free gas conduit of air or gas, or mixture of gas and air.
• PURGE TIME - Period of time intended to allow for dissipation of any unburned gas or residual products of combustion.
• QUALIFIED AGENCY - Any individual, firm, corporation, or company engaged in and responsible for:
• Installation, testing, or replacement of gas piping, or connection, installation, testing, repair or servicing of appliances
and equipment.
• Experienced in such work.
• Familiar with all precautions required.
• Complies with all requirements of authority having jurisdiction.
• SAFETY RELIEF VALVE - Valve designed to relieve pressure in hot water supply system when pressure exceeds pressure
capability of equipment.
• SAFETY SHUTOFF DEVICE - Device that will shut off gas supply to controlled burner in event source of ignition fails.
• SEDIMENT TRAP - Gas piping arrangement designed to collect any liquid or solid contaminant before reaching gas valve.
• SERVICE -Supply, installation, or maintenance of goods carried out by a Qualified Installer / Service Technician.
• TWO PIPE SYSTEM - Type of venting that allows for exhaust flue and intake air piping to be separated from each other. Fresh
air may be drawn in at a different area from where flue terminal is located.
• VENT - Passageway used to convey flue gases from appliance vent connector to outdoors.
• VENTING SYSTEM - Continuous open passageway from of appliance vent connector to outdoors for purpose of removing flue or
vent gases.
240012485 REV C [06/30/2019]
cu meters
= 127 MBH
cu meters
62
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