Sears 9MPD manuals
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When we buy new device such as Sears 9MPD we often through away most of the documentation but the warranty.
Very often issues with Sears 9MPD begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Furnace Sears 9MPD is responsible for and what options to choose for expected result.
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62 pages 4.63 Mb
904 SingleStage PrintedinU.S.A. LPI 12/03/2002 440 01 1114 (00) FAN ASSISTED, DIRECT VENT GAS FURNACE 2 N9MP1 N9MP2 *9MPD *Denotes Brand440 01 1114 00 Printed in U.S.A. JellJill _1 * 9 MP D 075 F 12 A # 3 START-UP CHECK SHEET For 90+ FurnaceNO NO 4 1. Safe Installation RequirementsSafety Rules Frozen Water Pipe HazardFROZEN AND BURST WATER PIPE HAZARD Winter Shutdown 5 2. InstallationLocation and ClearancesTypical Upflow Installation Installation Requirements Installation Positions Furnace Installation Considerations Condensate Trap and Drain Lines 6 LevelingVent and Combustion Air Connectionst3!4 Dimensions & Clearances 7 | ]jAI. I.TAKE_/VENTrgMPD) AiRI.TAKE " Horizontal Furnace Installation 8 3. Combustion & Ventilation Air For Single Pipe InstallationAir Openingsand ConnectingDucts4. The minimum dimension of rectangular air ducts MUST NOT be less than 3". Confined Space Installation RequirementsOutside Air (This is ONLY a guide. SubJect to codes of country havingjurisdiction.) ThisinstallationNOTapprovedinCanada GasVen_, i,G,re. _ I_ .i II II II II Outlet 9 ................................II I= II II1- IFI A ;/ -- ] r_ II I Minimum Onelnlet andOne Outlet AirSupply is Required / I I I HI MaybeinanyCombinationShown IUnusually Tight Construction Ventilation Air Venting and Combustion Air Check 10 I!For Two Pipe Installation11 4. Vent and Combustion Air PipingSingle Pipe (N9MP1 Models)Direct Vent (N9MP2 Models) Dual Certified ('gMPD Models) Contaminated Combustion Air Printing inks, paint removers, varnishes, etc. Hydrochloric acid. Sulfuric Acid. Vent and Combustion Air Piping Guidelines 12 13.PipingInsulation Guidelines Sizing Combustion Air and Vent PipePipe Diameter Table N9MP1 & *9MPD Models Pipe Diameter Table N9MP2 Models Vent Termination Clearances 13 3. DoNOT(United States Only) Condensate Drain TrapFROZEN AND BURST WATER PIPE HAZARD Condensate Drain Trap Freeze ProtectionUpflow Installations (Dual Certified *9MPD-A4 Models) 14 Poin,edPlug the upper drain stub on the vent fitting with the yellow plastic cap. 15 up.ow,nsta.a.ons(Dua,Cer..ed"gMPD-A4Mode,s)NOTE: Route hoses to the condensate trap with no kinking or binding for proper condensate drainage. 16 Horizontal LeftHorizontal Left Installations -(DualCertified *9MPD) (See Figure 10) Y "sot:W:w"ward C'aop ..astic Cap Von.Pip__ A.r..pe<ept.oT. 17 Hor,zonta.TrapConne.ion '. 23 /Horizontal Left Installations -(Single Pipe & Direct Vent N9MP1 & N9MP2 Models) (See Figure 15)NOTE: Route hoses to the condensate trap with no kinking or binding for proper condensate drainage. 24 \\\Horizontal Right Installations - (Single Pipe& DirectVent N9MP1 & N9MP2 Models) (SeeFigure16) 25 Connect Downflow Installations (Single Pipe N9MP91 &Direct Vent N9MP2-A4 Models) <C>Downflow Installations - (Single Pipe & DirectVent N9MP1 & N9MP2Models) (See Figure 17) 26 NOTE: Allgaskets and seals must beConnecting Vent and Combustion Air Piping Combustion Air Pipe Connection (Dual Certified or Vent Pipe ConnectionProper Sealing Procedure for Combustion Blower Joining Pipe and Fittings 27 Connecting Vent Pipes and TerminationSidewall Termination 12" or More Above Snow Level or Grade Level Horizontal Termination 28 2. Check hole sizes bymaking sure itissmaller UsingExterior RisersGrade Level Vertical Termination Vent Termination Shielding Multi Vent Termination ClearancesAir Roof Termination 29 Air Sidewall Termination J jJSidewall Inlet Vent and Exhaust- Air Termination44001 1114O0 [_ Dimension "A" is touching or 2" maximum separation. Sidewall Inlet Vent and Exhaust-Air Termination with Exterior Risers Rooftop Inlet Vent and Exhaust- Air Termination_e;i_271 Recommended Alternate Installation for Sustained Cold Weather (-OF & below) _J 30 5. Gas Supply and PipingAlternateBTUH Input Ratings(USA Only)Alternate Input Ratings, USA ONLY. SupplyPressure GasSupply PressureManifold Gas Pressure AdjustmentNOTE: Make adjustment to manifold pressure with burners oper- ating. FIRE OR EXPLOSION HAZARD 31 MANIFOLDPRESSUREAND ORIFICESIZE FOR HIGH ALTITUDEAPPLICATIONSNATURAL GAS (".wc) (" .wc) (".wc) (".wc) (".wc) (" .wc) (".wc) General Derating Rules High Altitude Air Pressure Switch Changing Orifices for High Altitude 4. Relightallappliancesandensureallpilotsareoperating. GasPiping RequirementsAdditional LP Connection Requirements FinalCheck 33 6. Electrical WiringPower SupplyWiringThermostat Optional Equipment Humidifier/Electronic Air CleanerFan ControlFan Delay DIP Switch Settings 34 :iControl Center Fuse 7. Ductwork and FilterInstallation 35 SizingInsulation Filters Filter Installation using Optional Filter RackBottom Mounted Filter Rack _/ I _"_ 36 Addition OfAir ConditioningDownflow Furnace Installation Non- Combustible Floor Installation Combustible Floor Installation ;ubbase for Combustible Floor ubbases,orCombus.bleF,oorsD,mens,onsCoil Cabinet Subbase Furnace Subbase i 37 Wood c o;Condensate Line Raised by Base 38 8. Checks and AdjustmentsStartup Adjust Pilot Burner GasSupply PressureManifold Gas Pressure Adjustment Main BurnerFlame CheckMain Burner Temperature Rise Check 39 9. Furnace MaintenanceChanging Blower SpeedWire Color Black Orange* Blue Red Motor Speed High Med-High Medium * Med-High speed may not be provided on all models. Continuous Fan Operation Separate speed selections for Heat, Cool, and Continuous Fan Heatingand ContinuousBlower Speedthe Same 40 10. Sequence of Operation & DiagnosticsCooling () Request:Circulating Fan (G) Request: Heating (W) Request: Heating Request with Gas Supply Line Shut Off: Gas Valve Diagnostic Codes (See Figure 43) HONEYWELL SV9541M "SMART VALVE" Sequence of Operation I + I I +IAFTERDELAY:CIRCULATINGBLOWERSTARTS I + 42 +43 HONEYWELL SV9541M "SMART VALVE" Trouble shooting4 Flashes 2 Flashes 1Flash SoftLockout. HONEYWELL SV9541M "SMART VALVE" Trouble shooting continuedLED INDICATES CHECK/REPAIR STATUS7Flashes 3 Flashes 4 Flashes Blowerfailure(typical) Limittriptooklonger than2 minutesto reset. Deadblower. Blockedductwork. 44 11. Concentric TerminationVent Termination Clearances Concentric Vent Termination -Kit # NAHA001CV&NAHA002CV Verticalterminationispreferred.Fieldsuppliedpipeandfittings arerequiredtocompletetheinstallation.Kit Components Vertical & Horizontal TerminationConcentric Vent Roof Installation _Y Drawing 45 \Ven haustI49 Four Position Furnace Models54 !
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