Bryant 315AAV instruction manual Floor and Plenum Opening Dimensions Roll-Out Protection

Page 12

	A
	PLENUM
	OPENING
B	D
	FLOOR
	OPENING
	C

315AAV

A96283

Fig. 11 - Floor and Plenum Opening Dimensions

Roll-Out Protection

Provide a minimum 17-3/4-in. X 22-in. (451 X 559 mm) piece of sheet metal for flame roll-out protection in front of burner area for furnaces closer than 12-in. (305 mm) above the combustible deck or suspended furnaces closer than 12-in. (305 mm) to joists. The sheet metal MUST extend underneath the furnace casing by 1-in. (25 mm)with the door removed.

The bottom closure panel on furnaces of widths 17-1/2-in. (445

mm)and larger may be used for flame roll-out protection when bottom of furnace is used for return air connection. See Fig. 17 for proper orientation of roll-out shield.

Bottom Return Air Inlet

These furnaces are shipped with bottom closure panel installed in bottom return-air opening. Remove and discard this panel when bottom return air is used. To remove bottom closure panel, perform the following:

1.Tilt or raise furnace and remove two screws holding bot- tom filler panel. (See Fig. 9.)

2.Rotate bottom filler panel downward to release holding tabs.

3.Remove bottom closure panel.

4.Reinstall bottom filler panel and screws.

Side Return Air Inlet

These furnaces are shipped with bottom closure panel installed in bottom return-air opening. This panel MUST be in place when side return air inlet(s) are used without a bottom return air inlet.

FURNACE

(OR COIL CASING

WHEN USED)

COMBUSTIBLE

FLOORING

DOWNFLOW

SUBBASE

SHEET METAL

PLENUM

FLOOR

OPENING

A96285

Fig. 12 - Furnace, Plenum, and Subbase Installed on a

Combustible Floor

FURNACE

APPROVED

COIL ASSEMBLY

OR

COIL BOX

COMBUSTIBLE

FLOORING

SHEET METAL

PLENUM

FLOOR

OPENING

A08556

Fig. 13 - Furnace, Plenum, and Coil Assembly or Coil Box

Installed on a Combustible Floor

Not all horizontal furnaces are approved for side return air connections (See Fig. 20.)

12

Image 12

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