Bryant 315AAV General Venting Requirements, Two-Stage Furnace with Single-Speed Air Conditioner

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315AAV

!WARNING

CARBON MONOXIDE POISONING HAZARD

Failure to follow the steps outlined below for each appliance connected to the venting system being placed into operation could result in carbon monoxide poisoning or death.

The following steps shall be followed for each appliance connected to the venting system being placed into operation, while all other appliances connected to the venting system are not in operation:

1.Seal any unused openings in venting system.

2.Inspect the venting system for proper size and horizontal pitch, as required in the National Fuel Gas Code, NFPA 54/ANSI Z223.1-2009 and these instructions. Determine that there is no blockage or restriction, leakage, corrosion and other deficiencies, which could cause an unsafe condition.

3.As far as practical, close all building doors and windows and all doors between the space in which the appliance(s) connected to the venting system are located and other spaces of the building.

4.Close fireplace dampers.

5.Turn on clothes dryers and any appliance not connected to the venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they are operating at maximum speed. Do not operate a summer exhaust fan.

6.Follow the lighting instructions. Place the appliance being inspected into operation. Adjust the thermostat so appliance is operating continuously.

7.Test for spillage from draft hood equipped appliances at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle.

8.If improper venting is observed during any of the above tests, the venting system must be corrected in accordance with the National Fuel Gas Code, NFPA 54/ANSI Z223.1-2009.

9.After it has been determined that each appliance connected to the venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas-fired burning appliance to their previous conditions of use.

Vent system or vent connectors may need to be resized. Vent systems or vent connectors must be sized to approach minimum size as determined using appropriate table found in the current edition of NFGC.

General Venting Requirements

Follow all safety codes for proper vent sizing and installation requirements, including local building codes, the National Fuel Gas Code NFPA 54/ANSI Z223.1-2009 (NFGC), Parts 12 and 13 in the United States, the local building codes, and furnace and vent manufacturers’ instructions.

The following information and warning must be considered in addition to the requirements defined in the NFGC.

A00275

Fig. 27 - Two-Stage Furnace with Single-Speed

Air Conditioner

!WARNING

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury or death.

Do not bypass the draft safeguard switch, as an unsafe condition could exist which must be corrected.

1.If a vent (common or dedicated) becomes blocked, the fur- nace will be shut off by the draft safeguard switch located on the vent elbow.

2.Two-stage furnaces require Type B vent connectors out- side the casing in all configurations. Single wall vent con- nector may be used inside the furnace casing with the transition to Type B vent outside the furnace casing. Size the connector so that the FAN-Min vent connector capa- city is equal to or lower than the low fire rate of the fur- nace and the FAN-Max vent connector capacity is equal to or higher than the furnace high fire rate.

3.Do not vent this Category I furnace into a single wall ded- icated or common vent. The dedicated or common vent is considered to be the vertical portion of the vent system that terminates outdoors.

4.Vent connectors serving Category I furnaces shall not be connected into any portion of a mechanical draft system operating under positive pressure.

5.Do not vent this appliance with any solid fuel burning ap- pliance.

6.Category I furnaces must be vented vertically or nearly vertically unless equipped with a listed mechanical venter. See SIDEWALL VENTING section.

7.Do not vent this appliance into an unlined masonry chim- ney. Refer to Chimney Inspection Chart, Fig. 35.

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Contents Electrostatic Discharge ESD Precautions Safety Considerations Furnace Reliability HazardCUT Hazard Clearances to Combustibles Electrostatic Discharge ESD Precautions Procedure IntroductionCodes and Standards Dimensional Drawing Dimensions In. mm LocationCarbon Monoxide Poisoning / Component Damage Hazard FIRE, Injury or Death HazardFire Hazard Location Relative to Cooling EquipmentPersonal Injury AND/OR Property Damage Hazard AIR for Combustion Ventilation Furnace Corrosion HazardCarbon Monoxide Poisoning Hazard Air for Combustion, Ventilation, and Dilution for Outdoors Standard MethodInstallation Upflow InstallationCombination of Indoor and Outdoor Air Bottom Return Air InletDownflow Installation Suspended Furnace SupportPlatform Furnace Support Floor and Plenum Opening Dimensions Roll-Out Protection Opening Dimensions In. mm Filter ArrangementAIR Ducts General RequirementsSupply Air Connections Upflow and Horizontal FurnacesDownflow Furnaces Horizontal Unit Suspension Typical Attic Installation Downflow Return Air Configurations and Restrictions Air Delivery CFM With Filter CFMReturn Air Connections GAS Piping Fire or Explosion HazardMaximum Capacity of Pipe Furnace Damage HazardWiring Electrical Connections Electrical Shock HazardElectrical Shock and Fire Hazard Furnace MAY not Operate HazardElectrical Data Box RelocationFire or Electrical Shock Hazard BX Cable Installation in Furnace J-Box AccessoriesVenting Field Wiring Diagram General Venting Requirements Two-Stage Furnace with Single-Speed Air ConditionerTwo-Stage Furnace with Two-Speed Air Condi Tioner See notes 1 and 2 on the page following these figures 315AAV Chimney Inspection Chart Masonry Chimney Requirement Appliance Application RequirementsBurn Hazard Additional Venting Requirements Vent HeightUpflow Application Vent Elbow Up Horizontal Left Application Vent Elbow Left Venting Notes for Horizontal Left Application Vent Elbow UpSTART-UP, ADJUSTMENT, and Safety Check Sidewall VentingGeneral Furnace Vent Orientation Furnace Input MIN. VentOrifice Hole Fire and Explosion HazardFurnace Setup Switch Description Setup Switch Switch Name Normal Description of USE PositionAltitude Derate Multiplier for U.S.A Altitude Percent Derate MultiplierDerate Factor Unit Damage Hazard Furnace Overheating Hazard315AAV Wiring Diagram Gas Rate CU ft./hr Seconds G Size of Test DialSpecific Gravity of Natural GAS Altitude Range Altitude RangeBTUH/CU FT Altitude Range BTUH/CUAT Altitude Service and Maintenance Procedures Environmental HazardElectrical SHOCK, Fire or Explosion Hazard Electrical Operation HazardElectrical Controls and Wiring Component Self-TestCare and Maintenance Fire or Explosion Hazard Cleaning and/or Replacing Air FilterMedia cabinet filter procedures Carbon Monoxide Poisoning and Fire HazardCleaning Heat Exchanger Service agencyFilter Size Information In. mm Following steps should be performed by a qualifiedIgniter Position Side View Sequence of Operation Cooling A/C or Continuous-Fan CF Airflow Selection Chart Inducer Prepurge PeriodSingle-Stage Thermostat and Two-Speed Cooling Adaptive Mode Single-Speed CoolingThermidistat Mode Super-Dehumidify ModeContinuous Blower Mode Troubleshooting Heat pumpComponent test Troubleshooting Guide Adapter Kit Werblo Modelinvalid Orselection Accessory List Description Part NumberParts Replacement Information Guide
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