Bryant 315AAV Masonry Chimney Requirement, Appliance Application Requirements, Burn Hazard

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Masonry Chimney Requirement

NOTE: These furnaces are CSA design-certified for use in exterior tile-lined masonry chimneys with a factory accessory Chimney Adapter Kit. Refer to the furnace rating plate for correct kit usage. The Chimney Adapter Kits are for use with ONLY furnaces having a Chimney Adapter Kit number marked on the furnace rating plate.

If a clay tile-lined masonry chimney is being used and it is exposed to the outdoors below the roof line, relining might be required. Chimneys shall conform to the Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances ANSI/NFPA 211-2009 in the United States and must be in good condition.

U.S.A.-Refer to Sections 13.1.8 and 13.2.20 of the NFPA 54/ANSI Z223.1-2009 or the authority having jurisdiction to determine whether relining is required. If relining is required, use a properly sized listed metal liner, Type-B vent, or a listed alternative venting design.

NOTE: See the NFPA 54/ANSI Z223.1-2009 13.1.9 and

13.2.20regarding alternative venting design and the exception, which cover installations such as our Chimney Adapter Kits which are listed for use with these furnaces. See Table 17 for accessory listing.

The Chimney Adapter Kit is a listed alternative venting system for these furnaces. See the kit instructions for complete details.

This furnace is permitted to be vented into a clay tile-lined masonry chimney that is exposed to the outdoors below the roof line, provided:

1.Vent connector is Type-B double-wall, and

2.This furnace is common vented with at least 1 draft hood equipped appliance, and

3.The combined appliance input rating is less than the max- imum capacity given in Table 8, and

4.The input rating of each space heating appliance is greater than the minimum input rating given in Table 9 for the local 99% Winter Design Temperature. Chimneys having internal areas greater than 38 sq. in. (24516 sq. mm) re- quire furnace input ratings greater than the input ratings of these furnaces. See footnote at bottom of Table 9, and

5.The authority having jurisdiction approves.

If all of these conditions cannot be met, an alternative venting design shall be used, such as the listed chimney adapter kit with a furnace listed for use with the kit, a listed chimney-lining system, or a Type-B common vent.

Inspections before the sale and at the time of installation will determine the acceptability of the chimney or the need for repair and/or (re)lining. Refer to the Fig. 33 to perform a chimney inspection. If the inspection of a previously used tile-lined chimney:

a.Shows signs of vent gas condensation, the chimney should be relined in accordance with local codes and the authority having jurisdiction. The chimney should be relined with a listed metal liner, Type-B vent, or a listed chimney adapter kit shall be used to reduce con- densation. If a condensate drain is required by local code, refer to the NFPA 54/ANSI Z223.1-2009, Sec- tion 12.10 for additional information on condensate drains.

b.Indicates the chimney exceeds the maximum permiss- ible size in the tables, the chimney should be rebuilt or relined to conform to the requirements of the equip- ment being installed and the authority having jurisdic- tion.

A chimney without a clay tile liner, which is otherwise in good condition, shall be rebuilt to conform to ANSI/NFPA 211 or be lined with a UL listed metal liner or UL listed Type-B vent.

Relining with a listed metal liner or Type-B vent is considered to be a vent-in-a-chase.

If a metal liner or Type-B vent is used to line a chimney, no other appliance shall be vented into the annular space between the chimney and the metal liner.

Exterior Masonry Chimney FAN + NAT Installations with Type-B Double-Wall Vent Connectors ENFPA & AGA

Table 8 – Combined Appliance Maximum Input

Rating in Thousands of Btuh per Hour

 

 

INTERNAL AREA OF CHIMNEY

VENT HEIGHT

 

 

SQ. IN. (SQ. MM)

 

FT (M)

 

 

 

 

 

12

 

19

28

38

 

(7741)

 

(12258)

(18064)

(24516)

 

 

 

 

 

 

6 (1.8)

74

 

119

178

257

8 (2.4)

80

 

130

193

279

10 (3.0)

84

 

138

207

299

15 (4.5)

NR

 

152

233

334

20 (6.0)

NR

 

NR

250

368

30 (9.1)

NR

 

NR

NR

404

Appliance Application Requirements

Appliance operation has a significant impact on the performance of the venting system. If the appliances are sized, installed, adjusted, and operated properly, the venting system and/or the appliances should not suffer from condensation and corrosion. The venting system and all appliances shall be installed in accordance with applicable listings, standards, and codes.

The furnace should be sized to provide 100 percent of the design heating load requirement plus any margin that occurs because of furnace model size capacity increments. Heating load estimates can be made using approved methods available from Air Conditioning Contractors of America (Manual J); American Society of Heating, Refrigerating, and Air-Conditioning Engineers; or other approved engineering methods. Excessive oversizing of the furnace could cause the furnace and/or vent to fail prematurely.

When a metal vent or metal liner is used, the vent must be in good condition and be installed in accordance with the vent manufacturer’s instructions.

To prevent condensation in the furnace and vent system, the following precautions must be observed:

1.The return-air temperature must be at least 60_F db except for brief periods of time during warm-up from setback at no lower than 55_F (13_C) db or during initial start-up from a standby condition.

2.Adjust the gas input rate per the installation instructions. Low gas input rate causes low vent gas temperatures, caus- ing condensation and corrosion in the furnace and/or vent- ing system. Derating is permitted only for altitudes above 2000 Ft. (610 M).

3.Adjust the air temperature rise to the midpoint of the rise range or slightly above. Low air temperature rise can cause low vent gas temperature and potential for condensation problems.

4.Set the thermostat heat anticipator or cycle rate to reduce short cycling.

!CAUTION

BURN HAZARD

Failure to follow this caution may result in personal injury.

Hot vent pipe is within reach of small children when installed in downflow position.

See the following instruction.

315AAV

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Contents Electrostatic Discharge ESD Precautions CUT Hazard Safety ConsiderationsFurnace Reliability Hazard Clearances to Combustibles Codes and Standards Electrostatic Discharge ESD Precautions ProcedureIntroduction Location Dimensional Drawing Dimensions In. mmFIRE, Injury or Death Hazard Carbon Monoxide Poisoning / Component Damage HazardPersonal Injury AND/OR Property Damage Hazard Fire HazardLocation Relative to Cooling Equipment Carbon Monoxide Poisoning Hazard AIR for Combustion VentilationFurnace Corrosion Hazard Standard Method Air for Combustion, Ventilation, and Dilution for OutdoorsUpflow Installation InstallationCombination of Indoor and Outdoor Air Bottom Return Air InletPlatform Furnace Support Downflow InstallationSuspended Furnace Support Floor and Plenum Opening Dimensions Roll-Out Protection Filter Arrangement Opening Dimensions In. mmAIR Ducts General RequirementsDownflow Furnaces Supply Air ConnectionsUpflow and Horizontal Furnaces Horizontal Unit Suspension Typical Attic Installation Downflow Return Air Configurations and Restrictions CFM Air Delivery CFM With FilterGAS Piping Fire or Explosion Hazard Return Air ConnectionsMaximum Capacity of Pipe Furnace Damage HazardElectrical Connections Electrical Shock Hazard WiringElectrical Shock and Fire Hazard Furnace MAY not Operate HazardFire or Electrical Shock Hazard Electrical DataBox Relocation Venting BX Cable Installation in Furnace J-BoxAccessories Field Wiring Diagram Two-Stage Furnace with Single-Speed Air Conditioner General Venting RequirementsTwo-Stage Furnace with Two-Speed Air Condi Tioner See notes 1 and 2 on the page following these figures 315AAV Chimney Inspection Chart Burn Hazard Masonry Chimney RequirementAppliance Application Requirements Vent Height Additional Venting RequirementsUpflow Application Vent Elbow Up Horizontal Left Application Vent Elbow Left Horizontal Left Application Vent Elbow Up Venting Notes forSidewall Venting START-UP, ADJUSTMENT, and Safety CheckGeneral Furnace Vent Orientation Furnace Input MIN. VentFire and Explosion Hazard Orifice HoleSetup Switch Switch Name Normal Description of USE Position Furnace Setup Switch DescriptionDerate Factor Altitude Derate Multiplier for U.S.AAltitude Percent Derate Multiplier Furnace Overheating Hazard Unit Damage Hazard315AAV Wiring Diagram Seconds G Size of Test Dial Gas Rate CU ft./hrSpecific Gravity of Natural GAS Altitude Range BTUH/CU FT AltitudeRange BTUH/CU Altitude RangeAT Altitude Environmental Hazard Service and Maintenance ProceduresElectrical SHOCK, Fire or Explosion Hazard Electrical Operation HazardComponent Self-Test Electrical Controls and WiringCleaning and/or Replacing Air Filter Care and Maintenance Fire or Explosion HazardMedia cabinet filter procedures Carbon Monoxide Poisoning and Fire HazardService agency Cleaning Heat ExchangerFilter Size Information In. mm Following steps should be performed by a qualifiedIgniter Position Side View Sequence of Operation Inducer Prepurge Period Cooling A/C or Continuous-Fan CF Airflow Selection ChartSingle-Speed Cooling Single-Stage Thermostat and Two-Speed Cooling Adaptive ModeContinuous Blower Mode Thermidistat ModeSuper-Dehumidify Mode Component test TroubleshootingHeat pump Troubleshooting Guide Adapter Kit Werblo Modelinvalid Orselection Description Part Number Accessory ListParts Replacement Information Guide
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