Sears N9MP2 manual

904 N9MP1 & N9MP2 Single Stage *9MPD SAFETY REQUIREMENTS A Recognize safety information. This is the safety-alert symbol/ ._ . When you see this symbol on the furnace and in instructions or manuals be alert to the potential for personal injury. Understand the signal words DANGER, WARNING, or CAUTION. These words are used with the safety-alert [...]

N9MP1 - Indoor combustion air (1 pipe only) N9MP2 - Direct Vent ONLY (2 pipe only) *9MPD - Dual Certified Venting (1 or 2 pipes) *Denotes Brand Jell Jill _1 * 9 Brand Brand Identifier 8 = Non-Condensing, 80+% Gas Furnace 9 = Condensing, 90+% Gas Furnace Installation Configuration UP = Upflow DN = Downflow UH = Upflow/Horizontal HZ = Horizontal DH =[...]

START-UP CHECK SHEET For 90+ Furnace (Keep this page for future reference) Dealer Name: Address: City, State(Province), Zip or Postal Code: Business Card Here Phone: Owner Name: Address: City, State(Province), Zip or Postal Code: Model Number: Serial Number: Type of Gas: Natural: Which blower speed tap is used? (Heating) (Cooling). Temperature of S[...]

1. Safe Installation Requirements Installation or repairs made by unqualified persons can result in hazards to you and others. Installation MUST conform with local codes or, in the absence of local codes, with codes of all governmental authorities havingjurisdiction. The information contained in this manual is intended for use by a qualified servic[...]

If your furnace remains off for an extended time, the pipes in your home could freeze and burst, resulting in serious water damage. Water may create a condition in which mold can grow in your home. Certain types of mold have been reported to cause respi- ratory problems or other serious health risks. Remedial actions, including immediately drying a[...]

9, Typical Downflow Installation See Vent Termination Shieldingin Vent Section. I_ "8" Min. InletPipe _ [_ 20' Max. (not usedon _ in same Single Pipe-------_ k,_k atmospheric zone model) _ Vent Pi_c ; MUST be supl Horizonta and Vertically Coupling on inside and outside of wall to restrain vent pipe 8" Min. Min. Max. same zone * [...]

t3!4 17/8 Dimensions & Clearances TOP F | ] jAI. I.TAKE _ /VENT rgMPD) 1 LEFT SIDE I_ _ I TRAP (COUNTERFLOW) _ _ AiR I.TAKE ¢" (ALTERNATE)_ J TRAP 4131164 C UPFLOWIHORIZONTAL • THERMOSTAT/J_T-_ 7 _ 21518 47/8 24 /ELECTRICAL -- 11/16 13/8 2! / 8 21 3/4 62 4 I 1311/16 1/16 1913116 Cabinet to Combustible Clearances TOP BOT. RH LH BACK FRON[...]

Horizontal Furnace Installation This furnace can be installed horizontally in an attic, basement, crawl space, alcove, or suspended from a ceiling in a basement or utility room. See Figure 4. Do not install furnace on its back or in the reverse airflow positions as safety control operation will be ad- versely affected. _ _!'i [ Typical Horizon[...]

Outside Air (This is ONLY a guide. SubJect to codes of country havingjurisdiction.) Gas Vent This installation NOT approved in Canada GasVen_, i, _, let Air (1) ._1 Gable Vent ,_ G, re. _ I_ .i II II II II Outlet _ "_Ventilated Attic_ Outlet I II Air (2) Outlet Air (1) Soffit Vent f / "_- .. • I I I I I I I I I -- /TopAbovelnsulation &q[...]

3. Install airintake a minimum of 12" above maximum snow level and clear of any obstruction. Duct or ventilation open- ing requires one square inch of free area per 4,000 BTUH of total input rating for all gas appliances in area. 4. Air inlet MUST be screened with not less than 1/4" mesh screen. Unusually Tight Construction In unconfined [...]

4. Vent and Combustion Air Piping CARBON MONOXIDE POISONING, FIRE AND EXPLO- SION HAZARD Failure to properly vent this furnace can result in death, personal injury and/or property damage. Read and follow all instructions in this section. Single Pipe (N9MP1 Models) This furnace is certified as a category IV appliance. This furnace requires ventilati[...]

13. The vent outlet MUST be installed to terminate in the same atmospheric pressure zone as the combustion air inlet. 14. The vent system can be installed in an existing unused chimney provided that: • Both the exhaust vent and air intake run the length of the chimney. • No other gas fired appliance or fireplace (solid fuel) is vented into the [...]

3. Do NOT terminate over public walkways. Avoid areas where condensate may cause problems such as above planters, patios, or adjacent to windows where steam may cause fogging. 4. The vent termination shall be located at least 4' horizontally from any electric meter, gas meter, regulator, and any relief equipment. These distances apply ONLY to [...]

Upflow Installations (Dual Certified *9MPD-A4 Models) Yellow Plastic Cap Vent Pipe NOTE: TRAP MUST BE PRIMED BEFORE OPERATION Combustion Air TOP Venting Pipe (optional on some models) Supply _ _ Air Vent P )e Grommet Rubber Coupling Gas Pipe Grommet Sls" Hose & Clamps Plastic Cap Transition Box Transition Drain Line _ Component Identificat[...]

This pipe may only be shortened ifan elbow is used to connect the PVC vent extension tube tofield-installed vent pipe. Securely at- tach the PVC vent extension pipe to the vent fitting with the cla rap. This configuration allows left side venting from the furnace. If right side venting is required, the combustion blower must be relocated on the pla[...]

Horizontal Left Installations (Dual Certified *9MPD-A4 Models) Horizontal Trap Connection NOTE: TRAP MUST BE PRIMED BEFORE OPERATION ipe Combustion Air Pipe, (optional) 5/16" OD Rubber Model shown with two pressure switches "Clamp ears" Pointed OUT Preassembleand insert into furnace Supply Air PVC Vent Extension Pipe Vent Pipe Gromme[...]

PVC vent extension tube tofield-installed vent pipe. Securely at- tach the PVC vent extension pipe to the vent fitting with the cla rap. Connect the 5/8" OD rubber hose with the 90 ° bend to the lower drain stub on the vent fitting and secure with a 5/8" clamp. Route the hose to the horizontal drain stub on the condensate trap. Cut off e[...]

NOTE: All gaskets and seals must be in place for sealed combus- tion applications. Remove the 90 ° elbow and vent fitting from the combustion blow- er by loosening the clamps on the vent fitting. Connect the 90 ° el- bow to the combustion blower using the rubber coupling and cla raps. Note for proper alignment of the vent pipe through the fur- na[...]

iiiiM!!iMiIiii_iIiiiiiiiiIiiii(iii?iiiiiii:i;;ijIiiiiiHii![iiii_iii(iiiji_ii_ifiii_;ii!i!!!i}[_iiii_i;iiii Downflow Installations (Dual Certified *9MPD-A4 Models) iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii NOTE: TRAP MUST BE PRIMED BEFORE OPERATION DRAIN SIDE VIEW LEFT Si[...]

that are provided. If needed, remove the hole plugs from the fur- nace side panel and relocated to the open set of holes in the oppo- site side panel. NOTE: All gaskets and seals must be in place for sealed combus- tion applications. For both right and left side vent, remove the 90 ° elbow from the vent fitting by loosening the clamp on the vent f[...]

Upflow Installations (Single Pipe N9MP1 & Direct Vent N91VIP2-A4 Models) NOTE: TRAP MUST BE PRIMED BEFORE OPERATION DRAIN SIDE VIEW Vent Fitting /,/_a t e & Clamps downward NOTE_. Built-in channel will be angled 5 ° to 10 ° also. Single Pressure Switch Connections on all models except 125 LEFT Side Venting PVC Vent Extension Pipe dwg 25-2[...]

For left side mounted condensate trap, connect the 3/4" OD rub- ber hose with the 90 °bend to the large drain stub on the conden- sate trap and secure with a 3/4" clamp. Route the hose to the drain stub on the bottom of the plastic transi- tion box. Cut off excess hose and discard. Connect the hose tothe drain stub on the transition and [...]

Horizontal Left Installations (Single Pipe N9MP1 & Direct Vent N9MP2-A4 Models) NOTE: TRAP MUST BE PRIMED BEFORE OPERATION Models shown have two pressure switch _._lastic Cap Supply _ Air ,_ 2_ _> Inlet / Combustion Air Pipe, N9MP2 ONLY Vent Fitting t Pipe & Clamps Vent Fitting & Clamps Transition 518" Hose & Clamps "Ho[...]

Horizontal Right Installations (Single Pipe & Direct Vent N9MP1 & N9MP2-A4 Models) NOTE: TRAP MUST BE PRIMED BEFORE OPERATIONveni _ipls_lv_ _ Plastic Cap Vent Fitting & Clamps Return Air 518" Hose & % Clamps _ Models shown have __ two pressure switches Horizontal Trap Connection Plastic Pressure 3/4" Hose "Clam[...]

Connect the 3/4" OD rubber hose with the 90 ° bend to the large drain stub on the condensate trap and secure with a 3/4" clamp. Route the hose to the drain stub on the bottom of the plastic transi- tion box. Cut off excess hose and discard. Connect the hose to the drain stub on the transition and secure with a 3/4" clamp. Connect th[...]

NOTE: All gaskets and seals must be in place for sealed combus- tion applications. Ensure that the vent fitting is securely attached to the combustion blower using the rubber coupling and clamps. Connect the PVC vent extension pipe to the vent fitting. This pipe has a built-in channel to assist vent condensate disposal. Align the arrow on the PVC p[...]

Proper Sealing Procedure for Combustion Blower Rubber Coupling J ._ Vent Pipe & Clamps--__ ____ _ _ (Top Panel Exit) tPipe _ NOTE: The 90 ° elbow is ap- proved for use inside the furnace ONLY. Vent Fitting 90 ° Elbow & Clamps Combustion Blower Vent Extension _'_. Pipe (Side Panel Exit) DRAIN SIDE VIEW _/_'ia t e downward NOIF. g[...]

2. Check hole sizes by making sure itis smaller than the cou- plings or elbows that will be installed on the outside. The couplings or elbows MUST prevent the pipe from being pushed back through the wall. 3. Extend vent pipe and combustion air pipe through the wall 3/4" to 1" and seal area between pipe and wall. 4. Install the couplings, [...]

Concentric Vent and Combustion- Air Sidewall Termination J jJ 1" Maximum Exhaust 25-22-02d Dimension "A" is touching or 2" maximum separation. Sidewall Inlet Vent and Exhaust- Air Termination 8" Min. 20' Max. 18" Min. for Cold Climates (Sustained Below 0 ° F) 12" Min. Grade or Snow Level _mension "A&quo[...]

5. Gas Supply and Piping CARBON MONOXIDE POISONING, FIRE AND EXPLO- SION HAZARD Models designated for Natural Gas are to be used with Natural Gas Only, unless properly converted to use with LP gas. Furnace operating with the wrong fuel result in death, personal injury and/or property damage. NOTE: The rating plate is stamped with the model number, [...]

MANIFOLD PRESSUREAND ORIFICE SIZE FOR HIGH ALTITUDEAPPLICATIONS NATURAL GAS ElevationAbove Sea Level Heat Value BtulOu.Ft. 0-1999 2000-2999 3000-3999 4000-4999 5000-5999 6000-6999 7000-7999 (" .wc) (" .wc) (" .wc) (" .wc) (" .wc) (" .wc) (" .wc) 800 3.5 3.5 3.5 3.5 3.5 3.5 3.5 850 3.5 3.5 3.5 3.5 3.5 3.5 3.5 900 3[...]

Typical Gas Piping for Upflow Drip Leg and Union, Union* should be outside the Gas (Single Pipe) cabinet. Manual shut-off valve MUST he upstream of dripleg, union, Manual shut- off valve Use elbows and 3" pipe nipple to connectvalve to pipingwhen using right side gas pipe entry. LP Lowpressure switch. Optional on some models. nipp * Union may [...]

4. Relight all appliances and ensure all pilots are operating. NOTE: If meter uses a 2 cubic foot dial, divide results (seconds) by two. Gas Piping Requirements NOTE: The gas supply line must be installed by a qualified ser- vice technician in accordance with all building codes, (In the state of Massachusetts, gas supply connections MUST be perform[...]

Fan Delay DIP Switch Settings COOL ON DELAY: 6 SEC. COOL OFF DELAY: 60 SEC. HEATON DELAY:30 SEC. HEAT OFF DELAY 60SEC 100SEC 140SEC 180SEC Electrical Connections NOTE: Junction Box can be mounted to either the left or right side. 1_5V. aOHL G_=_nd [ Low Voltage ; Terl_nn_ :i 25-23-47 25-23-42 Control Center Fuse The 24V circuit contains a 5-amp, au[...]

CARBON MONOXIDE POISONING HAZARD This could result in death, personal injury and/or property damage. Cool air passing over heat exchanger can cause condensate to form resulting in heat exchanger failure. Connections NOTE: On upflow installations, return air can enter through either side, both sides, orthe bottom. On horizontal or downflowinstalla- [...]

one side of furnace, require astandoff filter rack, see Figure 36, available from your distributor. Standoff FilterRack HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH Using Optional /_/_ Standoff Filter Rack _ / _/ I _ "_ 25-21-45a CAUTION If filters are only suitable for heating application, advise homeowner that filter size m[...]

ubbases,or Combus.ble F,oors D,mens,ons iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Subbase for Combustible Floors Part Number Furnace Subbase NAHHOOISB NAHHOO2SB NAHHOO3SB NAHHOIOSB Subbase for Coil Cabinets NAHHOO4SB NAHHOO5SB NAHHOO6SB NAHHOO9SB Outs[...]

Condensate Line Raised by Base 25-20-52 8. Checks and Adjustments Startup NOTE: Refer to the start-up procedures in the "User's Informa- tion Manual' or to the "Operating Instructions Label' on the fur- nace. CAUTION If any sparks, odors or unusual noises occur, immediately shut OFF power to furnace. Check for wiring errors[...]

To check temperature rise,use the following procedure: 1. Place thermometers in supply and return airregisters as close tofurnace as possible, avoiding direct radiant heat from heat exchangers. 2. Operate furnace continuously for 15 minutes with all regis- ters and duct dampers open. 3. Take reading and compare with range specified on rating plate.[...]

10. Sequence of Operation & Diagnostics The following is the normal operating sequence for the control system. Cooling (¥) Request: 24 VAC signals applied to Y & G terminals of EFT (electronic fan timer) control. • Cool motor speed energized after 6 second Cool Fan On Delay time. Y & G signals removed from EFT. • Cool motor speed d[...]

to indicate the reason the control went into soft lockout. When the 6+ X code is flashing, the SV9541 will attempt a new ignition sequence after a five minute delay period, if the call for heat is still present. Reset of the thermostat will initiate a new ignition sequence immediately. NOTE 2: Any combination of 5 'abnormal' events during[...]

HONEYWELL SV9541M "SMART VALVE" Sequence of Operation I POWER APPLIED TO APPLIANCE + I THERMOSTAT CALLS FOR HEAT ¢ I PRESSURE SWITCHES PROVED OPEN? I COMBUSTION BLOWER ENERGIZED PRESSURE SWITCHES CLOSEDWITHIN30 SEC- ONDS? + I 3 SECOND PRE-PURGE PILOT VALVE OPENS: IGNITORPOWERED(1) PILOTLIGHTS AND FLAME IS SENSED l'_Vl DURING 90 SECO[...]

HONEYWELL SV9541M "SMART VALVE" Trouble shooting The 6 + X designation indicates a combination of flash codes: 6 flashes shows the control is in soft lockout, followed by X flashes to indicate the reason the control went into soft lockout. Last status code indicates repair to address first LED INDICATES CHECK/REPAIR STATUS Line voltage in[...]

HONEYWELL SV9541M "SMART VALVE" Trouble shooting continued LED INDICATES CHECK/REPAIR STATUS Soft Lockout. 6 Flashes + 3 Flashes 6 Flashes + 4 Flashes 7 Flashes Last failure was pressure switch Maximum recycle count exceeded Combustion air blower is de-energized, Circulating blower is de- energized after the "OFF" delay. After 5[...]

Vertical termination is preferred. Field supplied pipe and fittings are required tocomplete the installation. Kit Contents: Kit Components 3" Rain Cap or 2" Rain Cap 3;; DiameterSDR-26 Pipe, 191/2;; Long or 4 DiameterSDR-26 Pipe,371/8, Long, 2 DiameterSDR-26 Pipe, 315/8 Long or 21/2"DiameterSDR-26 Pipe, 24" Long, 3" Y Conce[...]

Concentric Termination Kit NAHA001CV & NAHA002CV Venting .... Table for N9MP2 Models 50,000 & 80,000 Btuh Furnaces NAHA002CV - 35' & (4) 90 ° elbows with 2" PVC pipe or NAHA001CV - 65' & (4) 90° elbows with 3" PVC pipe 75,000 Btuh Furnaces NAHA002CV - 20' & (2) 90 ° elbows with 2" PVC pipe or NAH[...]

Concentric Vent Sidewall Attachment Strap (Field Supplied) _,_////_ Combustion Air Vent Combustion _ _ _///,//_ Air 45 ° Elbow _/////_ (Field Supplied) 25-22-02 Note: Securing strap mustbefieldinstalled to prevent movement of termination kit in sidewall. 8. Install the rain cap and the small diameter pipe assembly in the Y concentric fitting and[...]

[_ 44001 1114 O0[...]

Four Position Furnace Models 25-23-30 Single Pipe N9MP1050B12A4 N9MP1075B12A4 N9MP1080F16A4 N9MP1100F14A4 N9MP1100J 20A4 N9MP1125 J 20A4 or Two Pipe N9MP2050B12A4 N9MP2075B12A4 N9MP2080F16A4 N9MP2100F14A4 N9MP2100J20A4 N9MP2125J20A4 or Dual Certified *9MPD050F12A4 *9MPD075F12A4 *9M PD080J 16A4 *9MPD100J14A4 *9MPD100J20A4 *9MPD125L20A4 _Denotes Bran[...]

Manufacturers Number (Mfr No -See Rating Plate) ALL Models Specifications (N9MP1) N9MP1080F16A N9MP1100F14A NgMP110OJ20A N9MP1125J20A General GasType Nat./LP Nat./LP Nat./LP Nat./LP Input (Btuh) 80,000 100,000 100,000 125,000 Output(Btuh) 72,000 91,000 96,500 113,750 Transformer Size (VA) 40 40 40 40 T'stat HeatAnticipator .10 .10 .10 .10 Temp[...]

Manufacturers Number (Mfr No -See Rating Plate) ALL Models Specifications (N9MP2) N9MP2080F16A N9MP2100F14A N9MP2100J20A N9MP2125J20A General GasType Nat./LP Nat./LP Nat./LP Nat./LP Input (Btuh) 80,000 100,000 100,000 125,000 Output(Btuh) 72,000 91,000 96,500 113,750 Transformer Size (VA) 40 40 40 40 T'stat HeatAnticipator .10 .10 .10 .10 Temp[...]

Manufacturers Number (Mfr No -See Rating Plate) ALL Models Specifications ('_9MPD) *9MPDO80J16A *gMPD100J14A *9MPD100J20A *gMPD125L20A General GasType Nat./LP Nat./LP Nat./LP Nat./LP Input (Btuh) 80,000 100,000 100,000 125,000 Output(Btuh) 73,600 92,000 92,000 115,000 Transformer Size (VA) 40 40 40 40 T'stat HeatAnticipator .10 .10 .10 .1[...]

CIRCULATION AIR BLOWER DATA For 050 Models 3 Ton Units _d m 1.. m X lJJ Speed Low Med L Med H Hi Tap 0.1 826 1083 1301 1408 0.2 804 1050 1242 1347 0.3 770 1028 1195 1295 0.4 735 985 1153 1237 0.5 698 952 1093 1183 0.6 657 909 1040 1118 0.7 --- 863 935 1053 0.8 .... 812 865 976 0.9 ...... 802 887 1.0 ...... 720 787 For 075 Models 3 Ton Units _d m $ [...]

0 o 2 -e 4_ o CONNECTION DIAGRAM DANGER: ELECTRICAL SHOCK HAZARD DISCONNECT BEFORE SERVICING -- LINE VOLTAGE FACTORY LINE VOLTAGE FIELD -- -- -- LOW VOLTAGE FACTORY -- -- -- LOW VOLTAGE FIELD -- i = INTERNAL CIRCUIT BOARD WIRING -- • -- RECTIFIED AC VOLTAGE FACTORY NOTE: MOST VOLT METERS WILL READ 13-16 VOLTS TO CHASSIS ON BOTH SIDES OF AN OPEN L[...]

2 O z E AA- 15 EE FF 18 C¢ 2 KK T K Representative 0kawing only, some models may vary in appearance. 25-23-95 oo o[...]

I Replacement Parts - NgMP1 & NgMP2 Models - N9MP1050B12A4, N9MP1075B12A4, N9MP1080F16A4, N9MP1100F14A4, N9MP1100J20A4 & N9MP1125J20A4 - N9MP2050B12A4, N9MP2075B12A4, N9MP2080F16A4, N9MP2100F14A4, N9MP2100J20A4 & N9MP2125J20A4 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of pur[...]

I Replacement Parts - NgMP1 & NgMP2 Models - N9MP1050B12A4, N9MP1075B12A4, N9MP1080F16A4, N9MP1100F14A4, N9MP1100J20A4 & N9MP1125J20A4 - N9MP2050B12A4, N9MP2075B12A4, N9MP2080F16A4, N9MP2100F14A4, N9MP2100J20A4 & N9MP2125J20A4 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of pur[...]

I Replacement Parts - NPMP1 & NPMP2 Models - N9MP1050B12A4, N9MP1075B12A4, N9MP1080F16A4, N9MP1100F14A4, N9MP1100J20A4 & N9MP1125J20A4 - N9MP2050B12A4, N9MP2075B12A4, N9MP2080F16A4, N9MP2100F14A4, N9MP2100J20A4 & N9MP2125J20A4 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of pur[...]

I Replacement Parts - *9MPD Models - *9MPDO50F12A4, *9MPDO75F12A4, *9MPDO80J16A4, *9MPD100J14A4, *9MPDIOOJ2OA4 & *9MPD125L20A4 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of purchase. Key Description Part *gMPD No. Functional Number 050F12A 075F12A 080J16A 100J14A 100J20A 125L2OA 1 He[...]

I Replacement Parts - *9MPD Models - *9MPDO50F12A4, *9MPDO75F12A4, *9MPDO80J16A4, *9MPD100J14A4, *9MPDIOOJ2OA4 & *9MPD125L20A4 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of purchase. Description Part *gMPD Non- Functional Number Key No. A B F H J K L M N O P Q R S T U V Panel,Top Gas[...]

I Replacement Parts - *9MPD Models - *9MPDO50F12A4, *9MPDO75F12A4, *9MPDO80J16A4, *9MPD100J14A4, *9MPDIOOJ2OA4 & *9MPD125L20A4 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of purchase. Key Description *gMPD No. Non- Functional 080J16A 100J14A 100J20A 125L20A W Gasket, Attachment Plate [...]

I Replacement Parts - *9MPD Models - *9MPD050F12A4, *9MPD075F12A4, *9MPD080J16A4, *9MPD100J14A4, *9MPD100J20A4 & *9MPD125L20A4 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of purchase. Part *gMPD Number 080J16A Key Description No. Non- Functional Gas Conversion Kits Nat to LP NAHF002LP[...]