Bryant 120 instruction manual General Venting Requirements, Masonry Chimney Requirements

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!WARNING

CARBON MONOXIDE POISONING HAZARD

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

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, ANSI Z223.1/NFPA 54 or the CSA B149.1, Natural Gas and Propane Installation Code 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, ANSI Z223.1/NFPA 54 and/or CSA B149.1, Natural Gas and Propane Installation Code.

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 NFGC or CAN/CSA-B149.1-05.

GENERAL VENTING REQUIREMENTS

Follow all safety codes for proper vent sizing and installation requirements, including local building codes, the National Fuel Gas Code ANSI Z223.1-2006/NFPA 54-2006 (NFGC), Parts 10 and 13 in the United States or the National Standard of Canada, Natural Gas and Propane Installation Code CSA-B149.1-00 (CAN/CSA-B149.1-05), Section 8 and Appendix C in Canada, the local building codes, and furnace and vent manufacturers’ instructions.

These furnaces are design-certified as Category I furnaces in accordance with ANSI Z21.47-2003/CSA 2.3-2003 and operate with a non-positive vent static pressure to minimize the potential for vent gas leakage. Category I furnaces operate with a flue loss not less than 17% to minimize the potential for condensation in the venting system. These furnaces are approved for common venting and multi-story venting with other fan assisted or draft

hood equipped appliances in accordance with the NFCG or the CAN/CSA-B149.1-05, 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 or the CAN/CSA-B149.1-05.

!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 furnace will be shut off by the draft safeguard switch located on the vent elbow.

2.Two-stage furnaces require Type B vent connectors outside the casing in all configurations. Single wall vent connector 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 capacity is equal to or lower than the low fire rate of the furnace 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 dedicated 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.In the US: Do not vent this appliance with any solid fuel

burning appliance. In Canada: Check with the authority having jurisdiction for approval on use with solid fuel burning appliance.

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

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

MASONRY CHIMNEY REQUIREMENTS

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 211-2003 in the United States and to a Provincial or Territorial Building Code in Canada (in its absence, the National Building Code of Canada) and must be in good condition.

U.S.A.-Refer to Sections 13.1.9 and 13.2.20 of the NFGC 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 NFGC, 13.1.9 and 13.2.20 regarding alternative venting design and the exception, which cover installations such as the Chimney Adapter Kits KGACA02014FC and KGACA02015FC, which are listed for use with these furnaces.

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Contents Ama Safety Considerations Furnace Reliability HazardCUT Hazard Size DimensionsIntroduction Width Bottom Flue CabinetInstallation Codes and Standards Electrostatic Discharge ESD Precautions ProcedureLocation GeneralCarbon Monoxide Poisoning and Unit Damage Hazard Location Relative to Cooling Equipment FIRE, Injury or Death HazardFire Hazard Property Damage HazardOutdoor Combustion Air Method AIR for Combustion VentilationFurnace Corrosion Hazard Carbon Monoxide Poisoning HazardAir for Combustion, Ventilation and Dilution for Outdoors Upflow Installation InstallationSuspended Furnace Support Downflow InstallationHorizontal Installation FIRE, EXPLOSION, and Carbon Monoxide Poisoning HazardRoll-Out Protection Floor and Plenum Opening DimensionsOpening dimensions Furnace Plenum Opening Floor Opening CasingWidth Horizontal Unit Suspension Ductwork Acoustical Treatment Supply Air Connections Filter Arrangement Carbon Monoxide Poisoning HazardAIR Ducts General RequirementsSpeed External Static Pressure IN. WC Size Inlet Air Delivery CFM With Filter2380 2285 2200 2085 1970 1835 GAS Piping Fire or Explosion Hazard Air Delivery CFM With Filter*Downflow Furnaces Return Air ConnectionsUpflow Return Air Configurations and Restrictions Furnace Damage Hazard Maximum Capacity of PipeFurnace MAY not Operate Hazard WiringElectrical Connections Electrical Shock and Fire Hazard Electrical Shock HazardElectrical Data BOX RelocationElectrical Connection to J-BOX Fire or Electrical Shock Hazard Power Cord Installation in Furnace J-BOXBX. Cable Installation in Furnace J-BOX Electrical Box on Furnace Casing Side. See Fig Two-Stage Furnace with Two-Speed Air Conditioner See notes 2, 11, and 12 on the page following these figures Venting AccessoriesMasonry Chimney Requirements General Venting RequirementsChimney Inspection Chart Vent Height Internal Area of Chimney Appliance Application RequirementsUpflow Application-Vent Elbow Up Downflow Application-Vent Elbow Up Horizontal Right Application Vent Elbow Right Orientation Tion PUTBTUH/HR Diameter Height FT Furnace Vent OrientaBurn Hazard Rounded End of KnockoutFire and Explosion Hazard START-UP, ADJUSTMENT, and Safety CheckStart-Up Procedures GeneralAltitude Derate Multiplier for U.S.A AdjustmentsStage Furnace Setup Switch Description U.SRedundant Automatic Gas Control Valve Gas Rate cu ft/hr Furnace Overheating HazardSeconds Size of Test Dial For Revolution Color Speed AS Shipped Speed SelectionCheck Safety Controls Stage Furnace Blower OFF delay Setup SwitchDesired Heating Mode Setup Switch Blower OFF Delay SEC Checklist Gravity Altitude RangeSpecific Gravity of Natural GAS BTUH/CU6001 to Specific Gravity of Natural GAS Altitude Range BTUH/CU FTSpecific Gravity of Natural GAS Altitude Range Heat Value Specific Gravity of Natural GAS Heat Value AT Altitude Service and Maintenance ProceduresElectrical SHOCK, Fire or Explosion Hazard FIRE, Personal Injury and Unit DamageUnit Operation Hazard Care and MaintenanceElectrical Controls and Wiring Electrical Shock Hazard IntroductionService Wiring Diagram Furnace Filter Size Casing Cleaning AND/OR Replacing AIR FilterFilter size information Blower Motor and Wheel Electrical Shock HazardUnit Damage Hazard Cleaning Heat ExchangerIgniter Position Top View Sequence of OperationTwo-Stage Heating Adaptive mode with Single-Stage Thermostat Single-Stage Thermostat and Two-Speed Cooling Adaptive Mode Thermidistat ModeSingle-Speed Cooling Wiring Diagrams TroubleshootingContinuous Blower Mode Troubleshooting Guide 2-Speed Blocked vent shutoff switch used in Chimney Adapter Kit Page Catalog No. II312A---45---8
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