National Products BW3, Series B instruction manual

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N.B. TechniciensÐVeuillez vous conformer à la réglementation en vigueur concernant l' installation des détecteurs d'oxyde de carbone. Suivre les consignes d'entretien figurant dans le manuel d'instruction ci-joint.
BOILER RATINGS AND CAPACITIES
The ratings marked "Net I=B=R Rating" indicate the amount of remaining heat input that can be used to heat the radiation or terminal units. The Net I=B=R Ratings shown are based on an allowance of 1.15 in accordance with the factors in the I=B=R Standard as published by The Hydronics Institute. New York City MEA Number 484-84-E-Vol. III.
Selection of boiler size should be based upon "Net I=B=R Rating" being equal to or greater than calculated heat loss of building. Consult manufacturer before selecting a boiler for installations having unusual piping and pickup requirements.
These boilers must stand on a non-combustible floor. If installed on a combustible floor, a factory-approved combustible floor base must be used.
BOILERS FOR USE AT HIGH ALTITUDE
This boiler is factory equipped for use at altitudes of 0-2000 ft above sea level. For use at altitudes above 2000 ft above sea level, input ratings are reduced by a change in main burner orifice size.
U.S.A. OnlyÐFor altitudes above 2000 ft above sea level, input ratings should be reduced at the rate of 4 percent for each 1000 ft above sea level. Consult the NFGC or the manufacturer for correct orifice sizing information. High-altitude orifices are available from boiler manufacturer.
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InstallersÐFollow local regulations with respect to installation of CO detectors. Follow maintenance recommendations in this instruction
NOTE:
manual.
INTRODUCTION
This boiler cannot be used with all types of chimneys. Read these instructions carefully before installing.
These Gas-Fired Hot Water Boilers are low-pressure, sectional cast iron boilers design certified by the American Gas Association (A.G.A.) and Canadian Gas Association (C.G.A.) for use with natural and propane gases. They are constructed and hydrostatically tested for a maximum working pressure of 50 psi in accordance with the American Society of Mechanical Engineers (A.S.M.E.) Boiler and Pressure Vessel Code Section IV Standards for cast iron heating boilers.
Check to be sure boiler size is correct before starting installation. See rating and capacity table shown in Fig. 1. Also be sure new boiler is for the type of gas being used. Check rating plate on right side of boiler.
The boiler must be supplied with correct type of gas, fresh air for combustion, and a suitable electrical supply. Boiler must also be connected to a suitable venting system and an adequate piping system. Finally, a properly located thermostat is needed for control of heating system. If there are any doubts as to the various requirements, check with local authorities and obtain professional help where needed. Take time to complete all the steps for SAFE and PROPER operation of heating system.
If this boiler is installed in a building under construction, special care must be taken to insure a clean combustion air supply during the construction process. Airborne particulates such as from drywall dust and from fiberglass insulation can clog the burner ports and cause incomplete combustion and sooting.
Where required by authority having jurisdiction, the installation must conform to American Society of Mechanical Engineers Safety Code for Controls and Safety Devices for Automatically Fired Boilers, No. CSD-1.
Before installing the boiler in the United States, refer to the current edition of the NFGC and the NFPA 90B. For copies of the NFGC and NFPA 90B, contact the National Fire Protection Association Inc., Batterymarch Park, Quincy, MA 02269; or for only the NFGC contact the American Gas Association, 400 N. Capitol St., N.W., Washington DC 20001.
Before installing the boiler in Canada, refer to the NSCNGPIC. For a copy of the NSCNGPIC, contact Standard Sales, CSA International, 178 Rexdale Boulevard, Etobicoke (Toronto), Ontario, M9W 1R3, Canada.
Installation must comply with regulations of serving gas supplier and local building, heating, plumbing or other codes in effect in the area in which installation is made. In absence of local building codes, installation must comply with NFGC in the United States and the NSCNGPIC in Canada.
The following steps are all necessary for proper installation and safe operation of boiler.
1. LOCATING THE BOILER
2. FRESH AIR FOR COMBUSTION
3. INSTALLATIONÐSYSTEM PIPING
4. CHIMNEY AND VENT PIPE CONNECTION
5. GAS SUPPLY PIPING
6. ELECTRICAL WIRING
7. CHECKING AND ADJUSTING
WARNING: Keep boiler area clean and free from combustible materials, gasoline, and other flammable vapors and liquids. Failure to follow this warning could result in explosion, electrical shock, fire, personal injury, or death.
WARNING: Improper installation, adjustment, alteration, service, maintenance, or use can cause carbon monoxide poisoning, explosion, fire, electrical shock, or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, local gas supplier, or your distributor or branch for information or assistance. The qualified installer or agency must use only factory-authorized and listed kits or accessories when modifying this product. Boilers with cast iron burners are not to be converted to propane. Failure to follow this warning could result in electrical shock, fire, personal injury, or death.
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Contents Index Installation, Start-Up, and Operating InstructionsÐ2Ð Safety ConsiderationsPage Gas-Fired Hot Water Boilers → Locating the BoilerÐ4Ð Ð5Ð Procedure 1ÐBOILER Located in Unconfined Space→ ÐRoom Large In Comparison With Boiler →FRESH AIR for CombustionÐ6Ð Procedure 2ÐBOILER Located in Confined SpaceAÐFresh Air Duct Capacities for Vertical Ducts Btuh BÐFresh Air Duct Capacities for Horizontal Ducts BtuhProcedure 1ÐCHECKING Chimney Installationðsystem PipingProcedure 1ÐFOR USE with Cooling Units Procedure 2ÐLOW Design Water Temperature Systems below 140FÐ8Ð Procedure 2ÐMINIMUM Vent Pipe ClearanceÐ9Ð ÐBoiler and Power VenterOptional Horizontal Venting with Power Venter Power Venter KITÐ10Ð GAS Supply Piping Procedure 1ÐCHECKING GAS SupplyProcedure 2ÐCONNECTING GAS Piping ÐGas Pipe SizesProcedure 2ÐINSTALLING Thermostat Procedure 3ÐCHECKING GAS PipingElectrical Wiring Procedure 1ÐELECTRIC Power SupplyÐ12Ð ÐUnit Wiring DiagramEquipment and Optional Accessories Procedure 1ÐRELIEF Valve Procedure 7ÐDRAIN ValveProcedure 8ÐWATER Temperature Control Procedure 12ÐROLLOUT Switch Flame Rollout Safety Shutoff Procedure 9ÐCIRCULATING PumpProcedure 10ÐBLOWER Draft Inducer Procedure 11ÐPRESSURE SwitchÐ15Ð GAS Valve Operating InstructionsTo Turn On Gas To Appliance To Turn Off Gas To ApplianceProcedure 5ÐTHERMOSTAT Heat Anticipator Adjustment Procedure 2ÐPILOT Burner AdjustmentProcedure 3ÐMAIN Burners Procedure 4ÐLIMIT Controls AdjustmentProcedure 4ÐBOILER Flue Passages Maintaining Boiler Procedure 1ÐBURNERSProcedure 2ÐRELIEF Valve Procedure 3ÐEXPANSION TankIf System is not Heating or not Giving Enough Heat Procedure 8ÐBLOWERService Hints Ð18ÐKEY Description → for USE with Natural GAS onlyNatural Gas Burners and Manifold Parts Ð19Ð→ for USE with Propane GAS only Propane Gas Burners and Manifold PartsÐ20Ð KEY Ð21ÐÐ22Ð Boiler Controls and PipingÐ23Ð Service TrainingÐ24Ð

BW3, Series B specifications

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