Manuals / Bryant / Household Appliance / Furnace

Bryant 340MAV ConcentricVent and Combustion-Air, Roof Termination, Side Termination

Models: 340MAV

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Fig. 42—Concentric Vent and Combustion-Air

A96128

Fig. 41—Rooftop Termination (Dimension "A" is Touching or 2-In. Maximum Separation)

VENT

COMBUSTION

AIR

A93056

COMBUSTION AIR

1″ MAXIMUM (TYP)

VENT

A93057

Fig. 42—Concentric Vent and Combustion-Air

Roof Termination

(Dimension "A" is Touching or 2-In. Maximum Separation)

Fig. 43—Concentric Vent and Combustion-Air

Side Termination

(Dimension "A" is Touching or 2-In. Maximum Separation)

VENT

COMBUSTION AIR

A96129

VENT

COMBUSTION AIR

A96130

Fig. 44—Sidewall Termination of 12 in. or Less	Fig. 45—Sidewall Termination of More Than 12 in.
(Dimension "A" is Touching or 2-In. Maximum Separation)	(Dimension "A" is Touching or 2-In. Maximum Separation)
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Page 33

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Bryant 340MAV ConcentricVent and Combustion-Air, Roof Termination, Side Termination, SidewallTermination of 12 in. or Less

Contents

installation, start-up and operating instructions SAFETY CONSIDERATIONS340MAV Series J 4-WAYMULTIPOISEFig. 1-MultipoiseOrientations Fig. 2-DimensionalDrawing DIMENSIONS INII. GENERAL INSTALLATION I. SAFETYVI. GAS PIPING AND GAS PIPE PRESSURE TESTING CODES AND STANDARDSELECTROSTATIC DISCHARGE ESD PRECAUTIONS Fig. 4-Return-AirTemperatureFig. 5-CondensateTrap VII. ELECTRICAL CONNECTIONSShown With Blower Access Panel Removed Fig. 6-Factory-ShippedUpflow Tube ConfigurationFig. 7-AlternateUpflow Tube Configuration and INTRODUCTIONE. Condensate Trap Field Drain Attachment F. Pressure Switch TubingLeft-HandTrap Installation Fig. 8-DownflowTube ConfigurationFig. 9-DownflowTube Configuration Right-HandTrap InstallationD. Pressure Switch Tubing Fig. 10-HorizontalLeft Tube ConfigurationC.Condensate Trap Field Drain Attachment E. Condensate Trap Freeze ProtectionE.Condensate Trap Freeze Protection C. Condensate Trap Field Drain AttachmentF. Construct a Working Platform D. Pressure Switch TubingFig. 11-AtticLocation and Working Platform Fig. 12-HorizontalRight Tube ConfigurationCondensate Trap Tubing Condensate Trap LocationLOCATION D. Pressure Switch TubingFig. 13-FurnaceLocation for Proper Condensate Fig. 14-ProhibitInstallation on BackDrainage Fig. 15-FreezeProtectionINSTALLATION Fig. 16-Installationin a GarageIII. INSTALLATION IN HORIZONTAL APPLICATIONS III. HAZARDOUS LOCATIONSAssembly or Coil Box Installed Fig. 18-Floorand Plenum Opening DimensionsInstalled on a Combustible Floor TABLE 1-OPENINGDIMENSIONS INFig. 21-DuctFlanges II. DUCTWORK ACOUSTICAL TREATMENTFig. 22-CrawlspaceHorizontal Application III. SUPPLY AIR CONNECTIONS A. Upflow Furnaces Fig. 23-FilterInstalled for Side InletB.Downflow Furnaces C.Horizontal FurnacesFig. 24-BottomFilter Arrangement Fig. 25-RemovingBottom Closure PanelVI. BOTTOM CLOSURE PANEL VII. GAS PIPINGFig. 26-TypicalGas Pipe Arrangement ELECTRICAL CONNECTIONS24-VWIRING I. 115-VWIRINGACCESSORIES Fig. 29-Relocating J-BoxFig. 30-WiringDiagram DIRECT VENTING TABLE 4-ELECTRICALDATAWARNING CARBON MONOXIDE POISONING HAZARD II. COMBUSTION-AIRAND VENT PIPING A.GeneralFig. 31-ControlCenter TABLE 5-COMBUSTION-AIRAND VENT PIPE Transition Location and Elbow ConfigurationTERMINATION CLEARANCES Fig. 32-Combustion-Airand Vent Pipe DiameterFig. 33-Combustion-Airand Vent Pipe Connections B.Combustion-Airand Vent Pipe DiameterC. Combustion-Airand Vent Pipe Attachment Fig. 34-ShortVent 5 to 8 Ft System TABLE 7-MAXIMUMALLOWABLE PIPE LENGTH FT TABLE 7-MAXIMUMALLOWABLE PIPE LENGTH FT CONTINUED TABLE 7-MAXIMUMALLOWABLE PIPE LENGTH FT CONTINUED Fig. 35-AirIntake Housing Plug Fitting DrainB.Two-PipeTermination Kit A. Extended Exposed Sidewall PipesDESIGN TEMPERATURE AMBIENT C.Concentric Vent/Air Termination KitIV. MULTIVENTING AND VENT TERMINATIONS Fig. 37-ConcentricVent and Combustion-AirRoof Fig. 36-RoofTermination PreferredTermination Preferred Fig. 38-ConcentricVent and Combustion-AirSideRoof Termination Fig. 42-ConcentricVent and Combustion-AirFig. 43-ConcentricVent and Combustion-Air Side TerminationII. APPLICATION CONDENSATE DRAIN I. GENERALFig. 46-Exampleof Field Drain Attachment III. CONDENSATE DRAIN PROTECTIONI. HEATING MODE SEQUENCE OF OPERATIONII.COOLING MODE III. CONTINUOUS BLOWER MODEIV. ADJUSTMENTS A. Set Gas Input Rate START-UPPROCEDURES I.GENERALV. COMPONENT TEST II.PRIME CONDENSATE TRAP WITH WATERFig. 50-RedundantAutomatic Gas Valve Fig. 48-InducerHousing Drain CapFig. 49-FillingCondensate Trap Fig. 51-BurnerOrificeFOR USE WITH 040 THROUGH 120 SIZE FURNACES ONLY FOR USE WITH 040 THROUGH 120 SIZE FURNACES ONLY ContinuedFOR USE WITH 040 THROUGH 120 SIZE FURNACES ONLY ContinuedFOR USE WITH 140 SIZE FURNACES ONLY FOR USE WITH 140 SIZE FURNACES ONLY ContinuedTABLE 11-ALTITUDEDERATE MULTIPLIER Fig. 52-BurnerFlameTABLE 14-BLOWEROFF DELAY SETUP POSITION B. Set Temperature RiseC.Blower Off Delay Heat Mode CHECK SAFETY CONTROLSCHECKLIST II. CHECK PRESSURE SWITCHFig. 53-AmpDraw Check with Ammeter I. CHECK PRIMARY LIMIT CONTROLCHECKLIST—INSTALLATION Page Catalog No 340m4011

Fig. 42—Concentric Vent and Combustion-Air

Roof Termination

Fig. 43—Concentric Vent and Combustion-Air

Side Termination

Fig. 44—Sidewall Termination of 12 in. or Less

Fig. 45—Sidewall Termination of More Than 12 in.

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