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Bryant 355MAV instruction manual General

Models: 355MAV

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LOCATION	15
General	15
Low-Fire Only Installation	17
Furnace Location Relative to CoolingEquipment	17
Hazardous Locations	18
INSTALLATION	18
Leveling Legs (If Desired)	18
Installation in Upflow and Downflow Applications	18
Installation in Horizontal Applications	21
Air Ducts	21
General Requirements	21
Ductwork Acoustical Treatment	21
Supply Air Connections	21
Return Air Connections	22
Filter Arrangement	22
Bottom Closure Panel	23
Gas Piping	23
Electrical Connections	26
115-V Wiring	26
24-V Wiring	27
Accessories	27
Direct Venting	30
Removal of Existing Furnaces from Common Vent Systems	30
Combustion-Air and Vent Piping	32
Concentric Vent and Combustion-Air Termination Kit Installation	37
Multiventing and Vent Terminations	41
Condensate Drain	41
General	41
Application	41
Condensation Drain Protection	43
SEQUENCE OF OPERATION	44
Self-Test Mode	44
Heating Mode	44
Heating Mode-Two Stage	45
Emergency Heat Mode	45
Cooling Mode	45
Single-Speed Applications	45
Two-Speed Applications	46
Heat Pump Mode	46
Single-Speed Applications	46
Two-Speed Applications	47
Continuous Fan Mode	47
Component Test	47
Bypass Humidifier Mode	48
Dehumidification Mode	48
Zone Mode	48
START-UP PROCEDURES	48
General	48
Select Setup Switch Positions	48
Air Conditioning (A/C) Setup Switches	48
Continuous Fan (CF) Setup Switches	49
Setup Switches (SW)	49
Prime Condensate Trap with Water	51
Purge Gas Lines	51
Adjustments	51
Set Gas Input Rate	51
Set Temperature Rise	57
Set Thermostat Heat Anticipator	58
Check Safety Controls	58
Check Primary Limit Control	58
Check Pressure Switches	59
Checklist	59

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Bryant 355MAV instruction manual General

Contents

Deluxe 4-WayMultipoise TABLE OF CONTENTSInstallation, Start-up,and Operating Instructions 355MAVGeneral INTRODUCTION SAFETY CONSIDERATIONSFig. 1-MultipoiseOrientations CODES AND STANDARDSDimensions in Fig. 2-DimensionalDrawingFig. 3-Clearancesto Combustibles INSTALLATIONFig. 4-CondensateTrap ELECTROSTATIC DISCHARGE ESD PRECAUTION PROCEDUREAPPLICATIONS PROCEDURE 1-GENERAL PROCEDURE 2-UPFLOWAPPLICATIONS Fig. 5-Factory-ShippedUpflow Tube ConfigurationShown with Blower Access Panel Removed h.Attach tube to coupling and clamp securely Fig. 7-DownflowTube Configuration F. Pressure Switch TubingPROCEDURE 3-DOWNFLOWAPPLICATIONS Left-HandTrap InstallationB. Condensate Trap Tubing Fig. 8-DownflowTube ConfigurationRight-HandTrap Installation E. Condensate Trap Freeze Protection D. Pressure Switch TubingC.Condensate Trap Field Drain Attachment A. Condensate Trap LocationF. Construct a Working Platform Fig. 9-HorizontalLeft Tube ConfigurationC. Condensate Trap Field Drain Attachments D. Pressure Switch TubingB. Condensate Trap Tubing Fig. 10-AtticLocation and Working PlatformA. Condensate Trap Location D. Pressure Switch Tubing Fig. 11-HorizontalRight Tube ConfigurationC. Condensate Trap Field Drain Attachment Fig. 12-FurnaceLocation for Proper Condensate LOCATION PROCEDURE 1-GENERALFig. 13-Return-AirTemperature DrainageFig. 15-FreezeProtection Fig. 14-ProhibitInstallation on BackPROCEDURE 2-LOW-FIREONLY INSTALLATION INSTALLATION PROCEDURE 1-LEVELINGLEGS IF DESIRED PROCEDURE 4-HAZARDOUSLOCATIONSFig. 16-Installationin a Garage 1.Size gas piping based on the high-fireinputTable 1-OpeningDimensions in Fig. 17-LevelingLegson a Combustible Floor Fig. 18-Floorand Plenum Opening DimensionsFig. 19-Furnace,Plenum, and Subbase Installed PROCEDURE 4-AIRDUCTS A. General Requirements Fig. 20-Furnace,Plenum, and Coil Assembly orCoil Box Installed on a Combustible Floor Fig. 21-DuctFlangesC. Supply Air Connections Fig. 22-CrawlspaceHorizontal ApplicationB. Ductwork Acoustical Treatment UPFLOW FURNACESPROCEDURE 6-BOTTOMCLOSURE PANEL PROCEDURE 5-FILTERARRANGEMENTFig. 23-FilterInstalled for Side Inlet PROCEDURE 7-GASPIPING171⁄2-IN.WIDE CASINGS ONLY Fig. 24-BottomFilter ArrangementFig. 25-RemovingBottom Closure Panel Table 3-MaximumCapacity of Pipe Fig. 26-TypicalGas Pipe ArrangementPROCEDURE 8-ELECTRICALCONNECTIONS A. 115-VWiringC.Accessories Fig. 28-DisconnectSwitch and FurnaceB. 24-VWiring Table 4-ElectricalDataPROCEDURE 9-DIRECTVENTING Fig. 29-Relocating J-BoxFig. 30-UnitWiring Diagram B. Combustion-Airand Vent Piping Fig. 31-ControlCenterFig. 32-EACTerminals on Control Center GENERALFig. 34-ThermidistatConnection Fig. 33-355MAVVariable Speed Furnace ControlPage Fig. 36-Combustion-Airand Vent Pipe Connections Fig. 37-ShortVent 5 to 8 ft System COMBUSTION-AIRAND VENT PIPE DIAMETERTable 7-MaximumAllowable Pipe Length ft COMBUSTION-AIRAND VENT PIPE ATTACHMENTTable 7-MaximumAllowable Pipe Length ft Continued Fig. 38-IntakeHousing Plug Fitting Drain Table 7-MaximumAllowable Pipe Length ft ContinuedFig. 39-RoofTermination Preferred Fig. 42-SidewallTermination of 12 in. or More TWO-PIPETERMINATION KIT Fig. 43-SidewallTermination of Less than 12 inEXTENDED EXPOSED SIDEWALL PIPES CONCENTRIC VENT/AIR TERMINATION KITD. Multiventing and Vent Terminations PROCEDURE 10-CONDENSATEDRAIN A. GeneralAmbient B. Application C. Condensation Drain ProtectionFig. 47-SidewallTermination of 12 in. or Less Fig. 48-SidewallTermination of More than 12 inSEQUENCE OF OPERATION Fig. 49-Exampleof Field Drain AttachmentFig. 50-CondensateTrap Heat Tape PROCEDURE 3-HEATING MODE-TWOSTAGE PROCEDURE 1-SELF-TESTMODEPROCEDURE 2-HEATINGMODE PROCEDURE 4-EMERGENCYHEAT MODEA. Single-SpeedApplications PROCEDURE 5-COOLINGMODEPROCEDURE 6-HEATPUMP MODE B.Two-SpeedApplicationsB. Two-SpeedApplications PROCEDURE 7-CONTINUOUSFAN MODEPROCEDURE 8-COMPONENTTEST PROCEDURE 9-BYPASSHUMIDIFIER MODE PROCEDURE 10-DEHUMIDIFICATIONMODESTART-UPPROCEDURES PROCEDURE 1-GENERAL Table 10-BlowerOff Delay Setup Switch SW PositionPROCEDURE 11-ZONEMODE PROCEDURE 2-SELECTSETUP SWITCH POSITIONSC. Setup Switches SW Fig. 53-Exampleof Setup Switch in OFF PositionFig. 54-InducerHousing Drain Tube 1 OFFPROCEDURE 3-PRIMECONDENSATE TRAP WITH WATER Table 11-SetupSwitch DescriptionTable 12-BlowerOff Delay Setup Switch Position PROCEDURE 4-PURGEGAS LINESFig. 55-FillingCondensate Trap Sea Level Sea Level Sea Level CANADAFig. 57-BurnerOrifice B. Set Temperature RiseFig. 56-RedundantAutomatic Gas Valve C. Set Thermostat Heat Anticipator Fig. 58-BurnerFlameTable 14-AltitudeDerate Multiplier for U.S.A Table 15-GasRate Cu Ft/Hr PROCEDURE 6-CHECKSAFETY CONTROLSB. Check Pressure Switches A. Check Primary Limit ControlPROCEDURE 7-CHECKLIST Fig. 59-AmpDraw Check with AmmeterPage Book/Tab 1/6 Catalog No