Bryant start--up operating and service and Bedienerhandbuch

1986TATWO--STAGE VARIABLE--SPEED ECMMULTIPOISE GAS FURNACESERIES 100/AInstallation, Start--up, Operating andService and Maintenance InstructionsNOTE:

10Indoor Combustion AirE NFPA & AGAStandard and Known--Air--Infiltration Rate MethodsIndoor air is permitted for combustion, ventilation, and dilu

11Table 3 – Minimum Free Area Required for Each Combustion Air Opening or Duct to OutdoorsFURNACEINPUT(BTUH)TWO HORIZONTAL DUCTS(1 SQ. IN./2,000 BTUH)

12CONDENSATE TRAPCondensate Trap -- Upflow OrientationWhen the furnace is installed in the upflow position, it is notnecessary to relocate the condens

13Condensate TrapRelief PortCollector BoxPlugsPressure SwitchPortCondensate TrapOutletCondensate TrapRelief PortCollector BoxPlugVent ElbowVent Elbow

14Remove relief tube from reliefport on collector trap.Remove trap fromcollector box.Loosen clamp on inletto vent elbow.Remove pressure switch tube fr

15Remove plug fromcollector box.DO NOT DISCARD.If alternate vent positionis required, loosen clampon inlet of vent elbow.Remove trap fromcollector box

16If alternate vent positionis required, loosen clampon vent elbow inlet.Remove relief tubefrom port on collectorbox.Remove trap from collectorbox.Rem

17CONDENSATE DRAIN CONNECTIONUpflow/Downflow OrientationIn the Upflow or Downflow orientation, the condensate trap isinside the furnace casing. The co

18A11305CUT HAZARDFailure to follow this caution may result in personal injury.Sheet metal parts may have sharp edges or burrs. Use careand wear appro

19LEFT SIDE DRAIN ROUTED BEHIND INDUCERTRAP, DRAIN ELBOW WITH DISCHARGE PIPEAttach tube to condensate trapCut formed end o condensate drain tubeConne

2Required Notice for Massachusetts InstallationsIMPORTANTThe Commonwealth of Massachusetts requires compliance with regulation 248 CMR as follows:5.08

201. Determine application being installed from Table 6.2. Construct hole in floor per Table 6andFig. 19.3. Construct plenum to dimensions specified i

211. Tilt or raise furnace and remove 4 screws holding bottomplate. (See Fig. 22.)2. Remove bottom plate.3. Remove bottom closure panel.4. Reinstall b

2214-3/16 and 17-1/2-in.Furnace16-in. Media Cabinet21-in. Furnace4-Ton or less, ACcapacity airflow20-in. Media Cabinet4-in.Block OffPlate1/2-in.Screws

23PLENUMOPENINGCABDFLOOROPENINGDOWNFLOWSUBBASESHEET METALPLENUMFLOOROPENINGFURNACE(OR COIL CASINGWHEN USED)COMBUSTIBLEFLOORINGAPPROVEDCOIL ASSEMBLYOR

24UPFLOW DOWNFLOW HORIZONTALYESNONOYESYESYESNO120°MINYES120°MINYES120°MIN90°90°PERFORATEDDISCHARGE DUCTFLANGEA10493Fig. 20 -- Duct Flanges1 3 / 4 ″1

25ANY COMBINATION OF 1, 2, OR 3 PERMITTED.A11036Fig. 24 -- Upflow Return Air Configurations and RestrictionsA11037Fig. 25 -- Downflow Return Air Confi

262-IN.(51 mm)ROLLOUT PROTECTION REQUIREDInstall 12” x 22” (305 x 559 mm) sheetmetal in front of burner compartmentarea.30 IN. (762 mm)MIN. WORK AREAC

27AIR DUCTSGeneral RequirementsThe duct system should be designed and sized according toaccepted national standards such as those published by: AirCon

28Table 7 – Air Delivery -- CFM (With Filter)(SW1-5 and SW4-3 set to OFF, except as indicated. See Notes 1 and 2.)INPUTBTUHCooling Switch Settings Ext

29Table 7 -- Air Delivery -- CFM (With Filter) (Continued)(SW1-5 and SW4-3 set to OFF, except as indicated. See Notes 1 and 2.)INPUTBTUHCooling Switch

3SAFETY CONSIDERATIONSFIRE, EXPLOSION, ELECTRICAL SHOCK, ANDCARBON MONOXIDE POISONING HAZARDFailure to follow this warning could result in dangerousop

30GAS PIPINGFIRE OR EXPLOSION HAZARDFailure to follow this warning could result in personalinjury, death, and/or property damage.Never purge a gas lin

31Table 8 – Maximum Capacity of PipeNOMINALIRON PIPESIZEIN. (MM)LENGTH OF PIPE --- FT (M)10(3.0)20(6.0)30(9.1)40(12.1)50(15.2)1/2 (13) 175 120 97 82 7

32J--Box InstallationFIRE OR ELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personalinjury, death, or property damage.If field-

33Connect an accessory 24 VAC, 0.5 amp. maximum humidifier (ifused) to the ¼--in. male quick--connect HUM terminal andCOM--24V screw terminal on the c

34Table 9 – Electrical DataTWO---STAGE PWM FURNACESUNIT SIZE V O LT S ---H E R T Z ---PHASEOPERATING VOLTAGERANGE*MAXIMUMUNITAMPSUNITAMPACITY#MINIMUMW

3524 V Coil To Humidifier Leads To Com/24V Screw Terminal on Thermostat Strip To HUM Terminal On Furnace Control Board To Humidifier Leads A11157Fig.

36 24-V THERMOSTAT TERMINALS PL2 – HOT SURFACE IGNITER & INDUCER MOTOR CONNECTOR 115-VAC (L2) NEUTRAL CONNECTIONS 115-VAC (L1) LINE VOLTAGE CONN

37Modulating and 2-Stage Furnace with Single-Speed Air ConditionerModulating and 2-Stage Furnace with Two-Speed Air ConditionerModulating and 2-Stage

38NOTES FOR THERMOSTAT WIRING DIAGRAMS1. Heat pump MUST have a high pressure switch for dual fuel applications.2. Refer to outdoor equipment Installat

39VENTINGFurnace is set in place in the required orientation.Special Venting Requirements for Installations inCanadaInstallation in Canada must confor

4INTRODUCTIONThis 4--way multipoise Category IV condensing furnace is CSAdesign--certified as a direct (2-pipe) or non-direct vent (1-pipe)furnace. (S

40A furnace shall not be connected to a chimney flue serving aseparate appliance designed to burn solid fuel.Other gas appliances with their own venti

41Allowable vent and combustion air terminations are shown in Fig.47.Ventilated Combustion AirThe vent pipe for a Ventilated Combustion Air System mus

42Configure the FurnaceCARBON MONOXIDE POISONING HAZARDFailure to follow this warning could result in personalinjury or death.To route the vent pipe a

431. Insert a length of vent pipe through the casing into theoutlet of the vent elbow.2. Slide the plastic vent pipe adapter over the length of theven

44Table 11 – Approved Combustion-Air and Vent Pipe, Fitting and Cement Materials (U.S.A. Installations)ASTM SPECIFICATION(MARKED ON MATERIAL)MATERIAL

45Table 12 – Maximum Allowable Exposed Vent Lengths Insulation Table -- Ft. / MMaximum Length of Uninsulated and Insulated Vent Pipe-Ft (M)TwoStageFur

46NOTE: Maximum Equivalent Vent Length (MEVL) does NOT include elbows or terminations. Use Table 14 - Deductions fromMaximum Equivalent Vent Length to

47NOTE: Maximum Equivalent Vent Length (MEVL) does NOT include elbows or terminations. Use Table 14 - Deductions fromMaximum Equivalent Vent Length to

48Attach gaskets to vent pipe andcombustion air adapters.Vent Coupling and AdapterA11314Fig. 37 -- Vent Coupling and Adapter with GasketsPSC INDUCER A

4912346755Rotate vent elbow torequired position.Any other unusedknockout may be usedfor combustion airconnection.&A1130912345675Rotate vent elbow

57. An ESD service kit (available from commercial sources)mayalsobeusedtopreventESDdamage.ACCESSORIESSee Product Data Sheet for a list of accessories

50Attach vent pipe adapter with gasket to furnace casing.Align notches in rubber coupling over standoffs on adapter. Slide clamps over the coupling.S

51HORIZONTAL LEFT - RIGHT VENT CONFIGURATION**Requires Accessory Internal Vent Kit See Product Data for Current Kit Number HORIZONTAL LEFT -VERTICAL V

52HORIZONTAL RIGHT - VERTICAL VENT CONFIGURATIONHORIZONTAL RIGHT - LEFT VENT CONFIGURATION**Requires Internal Vent Kit See Product Data for Current Ki

53VENT PIPE FLUSH SHOWING COUPLINGVENT PIPE FLUSH WITH ADAPTERVENT PIPE ADAPTER WITH GASKETINSTALLED ON FURNACE VENTPIPE IS CUT FLUSH WITH TOP OFADAPT

54VVItemClearance Description Canadian Installation (1) U.S. Installation (2)AClearance above grade, veranda, porch, deck, bal-cony or anticipated sno

55Item Clearance Description Canadian Installation (1) U.S. Installation (2)AClearance above grade, veranda, porch, deck, bal-cony or anticipated snow

56At least 36 in. 18 in. maximu m V e r tical separation between comb ustion air and v ent 8 3/4 in. (222mm)f or 3 in. (76mm)ki t 6 3/4 in. (172mm)f

57NOTE: This illustration is forreference only. Your unit maydiffer in appearance or may notinclude all components shown.MAINTAIN 12 IN.CLEARANCEABOV

583” (76 mm)12” (305 mm) Pipe hangarVentilated Combustion Airintake termination in crawlspaceVentilated CombustionAir intake pipeCRAWL SPACEATTIChighe

59START--UP, ADJUSTMENT, AND SAFETYCHECKGeneral1. Furnace must have a 115-v power supply properly connec-ted and grounded.NOTE: Proper polarity must b

6FIRE, INJURY OR DEATH HAZARDFailure to follow this warning could result in personalinjury, death and/or property damage.When the furnace is installed

60FIRE OR EXPLOSION HAZARDFailure to follow this warning could result in personalinjury, death, and/or property damage.Never purge a gas line into a c

61c. When correct input is obtained, replace caps that concealgasvalveregulator adjustment screws. Main burner flameshould be clear blue, almost trans

62Adjust Cooling Airflow -- Single Stage and HighStageCoolingThe ECM blower can be adjusted for a range of airflow for LowSpeed or High Speed cooling.

63ON/OFF SwitchRegulator Seal CapRegulator AdjustmentRegulator Seal Cap under Cap1/2” NPT Outlet1/8” NPT ManifoldPressure Tap1/8” NPT InletPressure Ta

64A11250B_A2X96Fig. 54 -- Service Label Information986TA

65SETUP SWITCH SWITCH NAME NORMAL POSITION DESCRIPTION OF USETON i d dfFurnace Setup Switch DescriptionSW1-1 Status Code Recovery OFFTurn ON to retrie

66Table 16 – Altitude Derate Multiplier for U.S.A.ALTITUDEPERCENTOFDERATEDERATEMULTIPLIERFACTOR*FT. M0–2000 0 --- 6 1 0 0 1.002001–3000 610---914 4 --

67Table 19 – Orifice Size and Manifold Pressure (In. W.C.) for Gas Input RateSAGLARUTANFOYTIVARGCIFICEPSSAG.GVAHEATVALUE0.580.600.620.64AT ALTITUDE Or

68Table 19 -- Orifice Size and Manifold Pressure (In. W.C.) for Gas Input Rate (Continued)SAGLARUTANFOYTIVARGCIFICEPSSAG.GVAHEATVALUE0.580.600.620.64A

69SERVICE AND MAINTENANCEPROCEDURESFIRE, INJURY OR DEATH HAZARDFailure to follow this warning could result in personalinjury, death and/or property da

76 15/16[176.1] 3[76.2]3[76.2]6 11/16[170.1]23 5/16[592.9]25 1/8[638.7]26 3/8[670.0] 26 11/16[678.1]21[534.0]26 5/16[668.8]17 5/16[439.2]16 9/16[420.9

702. Turn Setup Switch, SW1--1 “ON.”3. Manually close blower door switch.4. Control will flash up to 7 Status Codes.5. The last Status Code, or 8th Co

714. Inspect burner compartment before each heating season forrust, corrosion, soot or excessive dust. If necessary, havefurnace and burner serviced b

7215. Reconnect blower leads to furnace control. Refer to furnacewiring diagram, and connect thermostat leads if previouslydisconnected.NOTE: Be sure

73FIRE OR EXPLOSION HAZARDFailure to follow this warning could result in personalinjury, death, and/or property damage.Never purge a gas line into a c

7412. Shake trap dry.13. Clean port on collector box with a small wire.To re-install Condensate Drain and Trap:1. Remove adhesive backing from condens

75Secondary Heat ExchangersThe condensing side (inside) of the secondary heat exchangerCANNOT be serviced or inspected without complete removal ofthe

76A11273Fig. 59 -- Cleaning Heat Exchanger CellBurner FlameBurnerManifoldA89020Fig. 60 -- Burner FlameA11347Fig. 61 -- Blower Assembly986TA

77FLAME SENSOR(BELOW BURNER)FLAME ROLLOUTSWITCHBRACKET, IGNITERIGNITERBURNER SUPT. ASSYBURNER ASSYA11403Fig. 62 -- Burner AssemblySEQUENCE OF OPERATIO

78high--heat pressure switch HPS closes, and thehigh--heat gas valve solenoid GV--HI is energized.The furnace control CPU begins a 15--secondprepurge

79operation, which selects low--cooling or high--coolingoperation. This selection is based upon the stored historyofthelength ofpreviouscooling period

8THE BLOWER IS LOCATEDTO THE RIGHT OF THEBURNER SECTION, ANDAIR CONDITIONED AIR ISDISCHARGED TO THE LEFT.THE BLOWER ISLOCATED BELOW THEBURNER SECTION,

80thermostat, momentarily turn off the FAN switch or pushbutton on the room thermostat for 1--3 seconds after theblower motor BLWM is operating. The f

81Is AMBER LED status light on?Is there 24V at SEC-1 and SEC-2?Is there 115V at L1 and L2?Replace furnace control.Is door switch closed?Replace transf

8221 GAS HEATING LOCKOUT – Turn offpower and wait 5 minutes to retry. Checkfor:- Stuck closed gas valve relay on control.- Miswire or short to gas val

83A11250_986TAFig. 64 -- Wiring Diagram986TA

84PARTS REPLACEMENT INFORMATION GUIDECasing GroupBlower doorBottom plateControl doorDoor knob assemblyTop filler plateElectrical Group3--Amp fuseCircu

9AIR FOR COMBUSTION ANDVENTILATIONIntroductionDirect Vent (2--pipe) ApplicationsWhen the furnace is installed as a direct vent (2-pipe) furnace, nospe