Manuals / Bryant / Household Appliance / Furnace

Bryant 120 instruction manual Checklist, 312A

Models: 120

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Step 5 — Checklist

1.Put away tools and instruments. Clean up debris.

2.Verify that switches for LHT and OFF-DELAY are blower OFF-DELAY are selected as desired.

3.Verify that blower and burner access doors are properly installed.

4.Cycle test furnace with room thermostat.

5.Check operation of accessories per manufacturerfs instructions.

6.Review User’s Guide with owner.

7.Attach literature packet to furnace.

312A

Page 41

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Bryant 120 instruction manual Checklist, 312A

Contents

Service and Maintenance Instructions Series 120/C Installation, Start-up,Operating and312A 2---StageDeluxe Induced---CombustionFig. 1 - Dimensional Drawing SAFETY CONSIDERATIONS312A FURNACE RELIABILITY HAZARD312A Table 1 - Dimensions InINTRODUCTION INSTALLATION Fig. 2 - Clearances to Combustibles312A DÉGAGEMENT MINIMUM EN POUCES AVEC ÉLÉMENTSStep 1 - Safety ELECTROSTATIC DISCHARGE ESD PRECAUTIONS PROCEDUREStep 2 - General Installation Step 6 - Gas Piping and Gas Pipe Pressure TestingFig. 4 - Multipoise Orientations LOCATIONGENERAL CARBON MONOXIDE POISONING AND UNIT DAMAGE HAZARDFig. 6 - Prohibit Installation on Back Fig. 5 - Installation in a GarageFIRE, INJURY OR DEATH HAZARD FIRE HAZARDFURNACE CORROSION HAZARD AIR FOR COMBUSTION AND VENTILATIONCARBON MONOXIDE POISONING HAZARD Outdoor Combustion Air MethodIndoors Outdoors312A CARBON MONOXIDE POISONING HAZARDVolume INSTALLATIONVolume 21ft3HORIZONTAL INSTALLATION Fig. 10 - Leveling Legs DOWNFLOW INSTALLATIONFig. 9 - Removing Bottom Closure Panel Leveling Legs If DesiredInstalled on a Combustible Floor Fig. 11 - Floor and Plenum Opening DimensionsRoll-OutProtection Combustible FloorFig. 14 - Duct Flanges Table 4 - Opening dimensions InUPFLOW DOWNFLOW HORIZONTAL 312A312A Fig. 15 - Horizontal Unit SuspensionFig. 16 - Horizontal Suspension with Straps FILTER ARRANGEMENT Fig. 17 - Typical Attic InstallationAIR DUCTS General Requirements Ductwork Acoustical Treatment312A Table 5 - Air Delivery - CFM With FilterHigh 312ADownflow Furnaces Table 5 - Air Delivery - CFM With Filter* ContReturn Air Connections GAS PIPINGA02075 A02163 A02162 312AFURNACE DAMAGE HAZARD Table 6 - Maximum Capacity of PipeFig. 21 - Right Side Gas Entry Example Fig. 22 - Right Side Gas Entry Example115-VWIRING Fig. 24 - Field Wiring DiagramELECTRICAL CONNECTIONS ELECTRICAL SHOCK AND FIRE HAZARDTable 7 - Electrical Data ELECTRICAL CONNECTION TO J-BOXJ-BOXRELOCATION Fig. 25 - Relocating J-BoxBX. CABLE INSTALLATION IN FURNACE J-BOX POWER CORD INSTALLATION IN FURNACE J-BOX24-VWIRING Electrical Box on Furnace Casing Side. See FigConditioner Fig. 27 - Two-StageFurnace with Two-SpeedAirDual Fuel and Single-SpeedHeat Pump312A and Two-SpeedHeat Pumpand Two-SpeedAir Conditioner VENTING ACCESSORIESFig. 34 - Furnace Control-PSCBlower Motor HI HEATMASONRY CHIMNEY REQUIREMENTS GENERAL VENTING REQUIREMENTS312A CARBON MONOXIDE POISONING HAZARD312A Fig. 35 - Chimney Inspection ChartCHIMNEY INSPECTION CHART Connectors ENFPA & AGA Installations with Type-B Double-WallVentExterior Masonry Chimney FAN + NAT Thousands of BTUH per Hour312A Fig. 36 - Upflow Application-VentElbow UpFig. 37 - Upflow Application-VentElbow Right 312A Fig. 39 - Downflow Application-VentElbow Upthen Up then Up 312ACUT HAZARD Fig. 49 - Using Tin Snips to Cut Tie Points312A Fig. 51 - Knockout Pulled Loose Fig. 50 - Rounded End of KnockoutFig. 53 - Remove Knockout with Hammer BURN HAZARDStep 2 - Start-UpProcedures START-UP,ADJUSTMENT, AND SAFETY CHECKStep 1 - General FIRE AND EXPLOSION HAZARDIn the U.S Step 3 - AdjustmentsTable 11 - Altitude Derate Multiplier for U.S.A 312AELECTRICAL SHOCK HAZARD Fig. 54 - Redundant Automatic Gas Control ValveFig. 55 - Orifice Hole 312A Table 12 - Gas Rate cu ft/hrFURNACE OVERHEATING HAZARD 312A Table 13 - Speed SelectionELECTRICAL SHOCK HAZARD FIRE HAZARD312A Step 4 - Check Safety ControlsFig. 56 - Amp. Draw Check with Ammeter 312A Step 5 - Checklist312A LevelLevel 312A312A levelPROCEDURES SERVICE AND MAINTENANCESea level ELECTRICAL SHOCK, FIRE OR EXPLOSIONELECTRICAL CONTROLS AND WIRING Step 2 - Care and MaintenanceStep 1 - Introduction UNIT OPERATION HAZARDSERVICE Fig. 57 - Service Label312A CUT HAZARDA07125 Fig. 58 - Wiring Diagram312A Table 17 - Filter size information in CLEANING AND/OR REPLACING AIR FILTERBLOWER MOTOR AND WHEEL 312A9/32˝ 5/16˝ CLEANING HEAT EXCHANGERUNIT DAMAGE HAZARD Fig. 59 - Igniter Position-SideView1-7/8” Fig. 61 - Cleaning Heat Exchanger CellStep 3 - Sequence of Operation Fig. 60 - Igniter Position - Top ViewSee Fig. 24 or 33 for thermostat connections 312A312A a.Single-SpeedCooling4.Thermidistat Mode Step 5 - Troubleshooting Step 4 - Wiring Diagrams5.Continuous Blower Mode 312ATROUBLESHOOTING GUIDE Fig. 62 - Troubleshooting Guide 2-Speed312A A02107AA05001 Fig. 63 - Troubleshooting Guide 2-Speed312A Page Replaces: II312A--- Catalog No. II312A---45---8Edition Date 02/07