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Bryant 355MAV instruction manual AmpDraw Check with Ammeter, PROCEDURE 7-CHECKLIST

Models: 355MAV

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Fig. 59—Amp Draw Check with Ammeter

THERMOSTAT SUBBASE TERMINALS WITH THERMOSTAT REMOVED (ANITICIPATOR, CLOCK, ETC.,

MUST BE OUT OF CIRCUIT.)

HOOK-AROUND AMMETER

R Y W G

10 TURNS

FROM UNIT 24-V

CONTROL TERMINALS

	EXAMPLE:	5.0 AMPS ON AMMETER	=	0.5 AMPS FOR THERMOSTAT
		10 TURNS AROUND JAWS		ANTICIPATOR SETTING

A96316

Fig. 59—Amp Draw Check with Ammeter

3.Turn on 115-v power to furnace.

4.Set thermostat to call for heat. When pressure switches are functioning properly, fault code 42 will flash on control center approximately 10 sec after thermostat switch is closed. If either a fault code 31 or 32 is flashed when ICM inducer motor is disconnected, the furnace will shut itself down immediately. Determine the reason pressure switches did not function properly and correct the condition.

5.Turn off 115-v power to furnace.

6.Reconnect inducer motor wire harness. Reinstall furnace access door.

7.Turn on 115-v power to furnace.

8.Reset thermostat to desired temperature.

PROCEDURE 7—CHECKLIST

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

2.Verify manual reset switch has continuity.

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

4.Cycle test furnace with room thermostat.

5.Check operation of accessories per manufacturer’s instructions.

6.Review User’s Guide with owner.

7.Leave literature packet near furnace.

—58—

Image 58

Bryant 355MAV instruction manual AmpDraw Check with Ammeter, PROCEDURE 7-CHECKLIST

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 INSTALLATIONAPPLICATIONS PROCEDURE 1-GENERAL ELECTROSTATIC DISCHARGE ESD PRECAUTION PROCEDUREFig. 4-CondensateTrap Shown with Blower Access Panel Removed Fig. 5-Factory-ShippedUpflow Tube ConfigurationPROCEDURE 2-UPFLOWAPPLICATIONS h.Attach tube to coupling and clamp securely Fig. 7-DownflowTube Configuration F. Pressure Switch TubingPROCEDURE 3-DOWNFLOWAPPLICATIONS Left-HandTrap InstallationRight-HandTrap Installation Fig. 8-DownflowTube ConfigurationB. Condensate Trap Tubing 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 TubingA. Condensate Trap Location Fig. 10-AtticLocation and Working PlatformB. Condensate Trap Tubing C. Condensate Trap Field Drain Attachment Fig. 11-HorizontalRight Tube ConfigurationD. Pressure Switch Tubing Fig. 12-FurnaceLocation for Proper Condensate LOCATION PROCEDURE 1-GENERALFig. 13-Return-AirTemperature DrainagePROCEDURE 2-LOW-FIREONLY INSTALLATION Fig. 14-ProhibitInstallation on BackFig. 15-FreezeProtection 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-LevelingLegsFig. 19-Furnace,Plenum, and Subbase Installed Fig. 18-Floorand Plenum Opening Dimensionson a Combustible Floor 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-GASPIPINGFig. 25-RemovingBottom Closure Panel Fig. 24-BottomFilter Arrangement171⁄2-IN.WIDE CASINGS ONLY 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 KITAmbient PROCEDURE 10-CONDENSATEDRAIN A. GeneralD. Multiventing and Vent Terminations B. Application C. Condensation Drain ProtectionFig. 47-SidewallTermination of 12 in. or Less Fig. 48-SidewallTermination of More than 12 inFig. 50-CondensateTrap Heat Tape Fig. 49-Exampleof Field Drain AttachmentSEQUENCE OF OPERATION 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-SpeedApplicationsPROCEDURE 8-COMPONENTTEST PROCEDURE 7-CONTINUOUSFAN MODEB. Two-SpeedApplications 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. 56-RedundantAutomatic Gas Valve B. Set Temperature RiseFig. 57-BurnerOrifice Table 14-AltitudeDerate Multiplier for U.S.A Fig. 58-BurnerFlameC. Set Thermostat Heat Anticipator 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