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a. Federal Manufactured Home Constructions& Safety Standard (H.U.D. Title 24, Part3280.707[a][2])b. American National Standard (ANSI-119.2/NFPA-501C) for all recreational vehicle installations.c. American National Standard (ANSI-Z223.1/NFPA-54) and/or CAN/CGA B149 for all gasfired furnace models.d. American National Standard (ANSI-Z95.1/NFPA-31) and/or CSA B139 for all oil-firedfurnace models.e. American National Standard (ANSI-C1/NFPA-70) and/or CSA 22.1 Canadian Electric Code Part 1 for all electrical field wiring.f. Units have been investigated under standards UL 307A & B, ANZI 21.47a — CAN/2.3a - 1995, and CSA B140.10.to the air filter, blower assembly, burner assembly, controls, and vent connections.a. Alcove installations (see Figure 2): minimum18" clearance at front of furnace shall beprovided for future servicing. A removableaccess panel should be installed betweentop of the furnace door frame and the ceiling.b. Closet installations must use a louvered doorhaving a minimum free area of 235 sq. in.when located 6" from furnace (See Figure 3)or 390 sq. in. for 5 ton ready M1 furnaces. Forspecial clearance between 1" and 6", requirements are a louvered door with a minimum of 250 sq. in. free area, with the openings in the closet door directly in line with thelouvered openings in the furnace door . A fullylouvered closet door may be used (SeeFigure 4).5.UNIT LOCATIONThe furnace shall be appropriately located tothe supply and return air distribution system.(See “AIR DISTRIBUTION”, Page 8) Sides andback of the furnace may be enclosed by wallframing. (See “Minimum Clearances,” Table 4,and Figures 2 through 5.)The furnace installation is only intended for freeair return through the furnace door louvers. DONOT connect a ducted return air system directly to the furnace. Improper installation maycreate a hazard and damage equipment, as wellas void all warranties.Furnace may be installed on combustible flooring when using NORDYNE Duct Connectors(see Section 10).6.MINIMUM CLEARANCESThis heating appliance must be installed withclearances not less than the minimums shownin Table 4. This heating appliance must beinstalled with ample clearance for easy accessALL MODELSFrontBackSidesRoof JackTopTop and Sides of DuctBottom of DuctB CabinetA Cabinet (w/ coil box)A Cabinet (w/o coil box)CLOSET6"0"0"0"6"0"ALCOVE18"0"0"0"6"0"U.S.A. home manufacturers shall comply withall of the following conditions to have acceptablereturn air systems for closet installed forced airheating appliances:! CAUTION:HAZARD OF ASPHYXIATION: Negative pressure inside the closet, withcloset door closed and the furnaceblower operating on high speed, shallbe no more negative than minus 0.05inch water column.a. Regardless of the location, the return airopening into the closet shall not be less thanspecified in the appliance’s listing.A Single trunk ductDual trunk ductB w/crossover connectorC0"0"1/4"Table 4. Minimum Clearances67.RETURN AIR PROVISIONSTransition ductw/branches0"0"1/4"Figure 5. Non-PlatinumSupply Duct System

b. Means shall be provided to prevent inadvertent closure by a flat object placed over thereturn air opening when it is located in the floorof the closet (versus the vertical front or sidewall).c. The cross-sectional area of the return ductsystem leading into the closet, when locatedin the floor or ceiling shall not be less than 235square inches (or 390 square inches for 5 tonready M1 Furnaces).d. The total free area of openings in the floor orceiling registers serving the return air ductsystem must be at least 352 sq. in. At leastone register should be located where it is notlikely to be covered by carpeting, boxes andother objects.e. Materials located in the return duct systemmust have a flame spread classification of200 or less. This includes a closet door if thefurnace is in a closet.f. Noncombustible pans having 1" upturnedflanges are located beneath openings in afloor duct system.g. Wiring materials located in the return ductsystem shall conform to Articles 300-22 ofthe National Electrical Code (ANSI C1/NFPA70).h. Gas piping is not run in or through the returnduct system.ROOF JACKSLANT DECKFLASHINGPITCHEDROOF"X" (SEE TABLE 1)CEILINGCAVITY"A"ROOFOPENINGFlue PipeCEILINGCombustionAir Pipe"B"Furnace56" or 76"Approx. LengthModel NumberBelow Flashing(F,S)AW(T)1523-(0,2,4)(A,S)15" - 23"(F,S)AW(T)2135-(0,2,4)(A,S)21" - 35"(F,S)AW(T)2747-(0,2,4)(A,S)27" - 47"(F,S)AW(T)3563-(0,2,4)(A,S)35" - 63"(F,S)AW(T)5195-(0,2,4)(A,S)51" - 95"S AWF FLAT FLASHINGS SLANT FLASHINGT27 47 - 2TYPE:BLANK NON-TRANSITT TRANSIT MODEROOF JACKPITCHEDROOFSFLUE STEEL TYPEA ALUMINIZEDS STAINLESSMIN. ADJ.LENGTHAW ALL WEATHERFigure 6. Roof Jack AssembliesFLASHINGPITCH/12" RISE0 FLAT2 2.5/124 4/12MAX. ADJ.LENGTH"X" (SEE TABLE 6)CEILING CAVITYCEILINGAll Weather Roof Jack AssembliesMODELNUMBERFO1323 -5FO2343 -5SO1835 -5SO2447 -5SO3263 -5SO4895 -5SOT2442 -5SOT2745 -5SOT4581 -5FOT2846 -5SOTAPPROX. ADJ.LENGTHS*BELOW FLASHING13" - 23"23" - 43"18" - 35"24" - 47"32" -63"48" - 95"24" - 42"27" - 45"45" - 81"28" - 46"27S SLAT FLASHING T TRANSITMODEF FLAT FLASHINGTYPEO TYPE; STANDARDH HIGH WINDA ARCTIC ROOF JACKSLANT DECKFLASHINGROOF OPENINGCEILING OPENINGFigure 7. Example of Flat Jackwith FlashingROOF JACK WITH2 1 2 /12 SLANTFLASHING45 -55 5" FLUE DIA.2 1 2 /12SLANT DECK5/12 ROOF SLOPEMAX. ADJ.LENGTHMIN. ADJ.LENGTHTable 5. Roof Jack AssembliesFigure 8. Example of 2½/12 Slant Jackwith Flashing7

i. Test the negative pressure in the closet withthe air-circulating fan operating at high speedand the closet closed. The negativepressure is to be no more negative thanminus 0.05 inch water column.j. For floor return systems, the manufacturedhome manufacturer shall affix a prominentmarking on or near the appliance where it canbe easily read when the closet door is open.The marking shall read:k. Air conditioning systems may require moreduct register and open louver area to obtain necessary airflow. Use NORDYNE’scertiduct program to determine proper ductsize for A/C.8.AIR DISTRIBUTION SYSTEMSFor proper air distribution, the supply ductsystem must be designed so that the staticpressure measured external to the furnacedoes not exceed the listed static pressurerating shown on the furnace rating plate.b. F Flat Flashing; flexes from 0/12 to 1/12 roofslope.c. S Slant Flashing. 2.5/12 Slope flexes from 1/12 to 4/12 roof slope, 4/12 flexes from 3/12to 5/12.d. Stainless steel roof jacks are available.e. If the roof jack crown is covered or blockedwith snow, the furnace will not operate properly. If the home is located in regions wheresnow accumulation exceeds 7” (HUDsnowload zones) use an external roof jackextension p/n 901937.f. M1 furnaces may be used with roof jacks astall as 170” (except M1M 056 & M1B 066models, which are limited to 120”). An internalroof jack extension (p/n 901935 - 10”, p/n903107 - 18”) can be used to increase roofjack height. All connections inside the homemust be made below the ceiling.These extensions are available as optionalaccessories and may be purchased throughyour NORDYNE distributor.Location, size, and number of registers shouldbe selected on the basis of best air distributionand floor plan of the home.IF ROOF PITCH IS:! CAUTION:HAZARD OF ASPHYXIATION: Do notcover or restrict return air opening.9.ROOF JACK SELECTIONNote: Install only Roof Jack Assemblies listedin Table 5 on this heating appliance.a. Determine depth of ceiling cavity from centerof roof opening to center of ceiling opening.(See Dimension “A” in Figure 6.)b. Determine ceiling height and subtract heightof furnace. (See Dimension “B” in Figure 6.)c. Add dimensions A B (and X from Table 6 andFigure 7 if slant deck flashing is used). Thetotal length of (A B X) must be within theminimum and maximum range of one of theRoof Jacks listed in Table 5.APPLICATION NOTES:a. FAW, FAWT, SAW and SAWT Series RoofJacks with a 5" diameter inner vent pipe maybe used with all models of M1 Series gas andoil furnaces.USE SLANT DECKFLASHING NO."X" FACTOR IS:"F Series Roof Jack2" in 12"903893 (2.5/12)2-1/8"2-1/2" in 12"903893 (2.5/12)2-1/2"3" in 12"903894 (3/12)2-7/8"3-1/2" in 12"903894 (3/12)3-1/4"4" in 12"903895 (4/12)3-5/8""S" Series Roof Jack (2.5/12 Pitch only)4-1/2" in 12"5" in 12"5-1/2" in 12"6" in 12"6-1/2" in 12"903895 (2.5/12)903895 (2.5/12)903894 (3/12)903894 (3/12)903895 (4/12)2-1/8"2-1/2"2-7/8"3-1/4"3-5/8"Optional Deck Flashings for Flat and 2.5/12 PitchRoof Jacks.(4/12 Pitch Roof Jacks not applicable.)Table 6. Slant Deck FlashingsIf "X" (Floor Cavity) is:EnglishMetric 012-1/4"311Use Duct ConnectorModel Part Number:Finger TabScrew 11901991904012901992904013901993904014Table 7. Floor Cavity Sizes8

10. DUCT CONNECTOR SELECTIONPLATINUM SERIESa. For Platinum ready construction usethe 14” round duct connector, p/n:903896.NON-PLATINUM SERIESb. Select appropriate model from Table 7which matches X-dimension of the floorcavity. To maximize air delivery, remove reducer “C” (see Figure 11) toobtain the largest open area that will fitthe duct/floor construction. Screw downduct connector opening to duct withoutreducer is 13” x 13”. With reducer it is13” x 10-1/8”.a. Determine depth of floor cavity fromsurface of floor to top of supply air duct(See Figure 9).FLOOR CAVITY(depth equal to "X" in Figure 11 and Table 7)xSUPPLY AIR DUCTFigure 9.19”10 1/4"19"13 1/4"Top ViewofFinger TabDuctConnectorFigure 10.*OPENING TO DUCTREDUCER*FELT-SEALWITH PLATE (C) REMOVEDOPENING BECOMES13-1/4” x 13-1/4”CXSPACERSSEETABLE 7*INDICATES FINGER TAB DUCT CONNECTOR ONLYFigure 11.9

CLCEILING AND ROOFOPENINGS13-1/2"CLREARALLWSIDEWALLALT. FUELLINE HOLES10"CLFLOOROPENINGFUEL LINEHOLECL23 -1/4"Figure 12. Closet or Alcove20"14-1/2"CL2-3/4"CLFLOOR CUT-OUTFOR OPTIONALCOOLING COILFOR NON-PLATINUMCL SERIES UNITSFUEL-LINE3/4"2"10"12-7/8"14-3/4"15-1/2"Figure 13. Cut-Out Locations1013-1/2"C CU EFL T-O ILINR U U G(S OO E A T Fee FN ORFi JAC Dg12 K)CL1-1/4" D.ALT FUEL-LINEENTRYFURNACE OUTLINEFLOOR CUT-OUTFOR DUCT CONN.14-1/2"21-3/4"24"23-1/4"2-1/4"REAR WALL OF CLOSET OR ALCOVE1-3/4"FURNACEOUTER DOOR

11. INSTALLATIONRequired floor, ceiling, and roof cut-out openings must be carefully located to avoid misalignment of the furnace and Roof Jack (see Figures12 & 13). Installation procedures are suggestedfor typical furnace installations and need not befollowed in the exact listed sequence.CUT OUT FLOOR OPENING & FUEL LINEHOLEa. Determine center of closet or alcove (Figure13).b. Locate center of the floor opening, measured10" from the rear wall, and mark cut-outmeasuring approximately 14-1/2" by 14-1/2"( 1”) for model duct connector used (referto Figures 10 & 11).c. Locate center of fuel line hole, measured 231/4" from the rear wall and 6-5/8" to the left ofcenter of the floor cut-out (See Figure 12) orMOUNTINGPLATE5-1/4" to the left of center of the floor cut-out,or for entry through right-side of furnacemeasured 9" to the right of center of the floorcut-out.d. Cut out floor opening and one fuel line hole.! IMPORTANT:Refer to the installation instructionsprovided with optional air conditioningpackages when installing furnaces withoptional cooling coil cabinet or withoptional C***-series indoor coils.CUT OUT CEILING AND ROOF OPENINGSa. Locate center of Roof Jack opening, measured 13 1/2" from the rear wall of closet oralcove along the center line of furnace andfloor opening. (See Figure 13)REAR WALLFLOOROPENINGFUELLINEHOLESSUPPLY AIR DUCTCUT DUCT OPENING1/16TH. LARGER THANDUCT CONNECTORFigure 14. Mounting PlateUNDER DUCT OPENINGMOUNTINGPLATEREAR ELLINEHOLESFUELLINEHOLESSUPPLY AIR DUCTNon-Platinum SeriesPlatinum Series14” SUPPLYCONNECTIONFigure 15. Duct Connector11

b. Cut ceiling and roof holes as follows:Ceiling Hole 8-3/4" (222 mm) diameterRoof Hole 9-3/8" (238 mm) diameterc. DO NOT ALLOW DEBRIS TO FALL INTOTHE FURNACE. THIS COULD CAUSEUNSAFE OPERATION AND VOIDS THEFURNACE WARRANTY. Use the top capthat comes with the furnace packaging (oralternate protector) to prevent debris fromfalling into the furnace before the final roofjack connection is made.CUT DUCT OPENING (FINGER TABBEDONLY)a. Place duct connector through the floor opening with bottom tabs resting on top of thesupply air duct.b. Center duct connector and push back againstrear edge of floor opening.c. Mark cut-out location (tab area) and removeduct connector.d. Cut out duct opening 1/4" larger than areamarked.INSTALL FURNACE MOUNTING PLATEa. Place mounting plate (supplied within ductconnector) at rear of the floor opening (SeeFigure 15).INSTALLING PLATINUM SERIES 14” ROUNDDUCT CONNECTORa. Place duct connector through the floor opening. (See Figure 15).b. Secure duct connector to floor.INSTALLING SCREW DOWN DUCT CONNECTORa. Apply a bead of caulking, mastic, or otherapproved sealant around bottom side of 1/2”flange and restrictor plate, when applicable.b. Locate the duct connector over duct andcarefully lower screw down duct connectorinto place.c. Once duct connector is located on duct,temporarily hold in place while fastening ductconnector to the floor using flat head screwsor nails. Be sure flanges of duct connectorstay in contact with the duct.d. Screw plenum to duct making sure a seal ismade between the duct and the duct connector. Additional screws may be added if required.e. Cut away duct along edge of flange allowingthe center to drop into the duct. Removesection of duct with caution, as edges will besharp.INSTALLING FINGER TABBED DUCT CONNECTORSa. Place duct connector through the floor opening with bottom tabs extending through theduct opening. (See Figure 15)b. Secure duct connector to floor.c. Bend bottom tabs under and up tightly againstthe supply air duct (See Figure 16).NOTE: The duct connector is designed for useon ducts 12" in width. When using the connectoron 12" wide ducts, there may be insufficientclearance to bend the tabs on two sides of theduct connector. In such cases the tabs may beattached to the sides of the duct by using sheetmetal screws or other suitable fasteners. (SeeFigure 17).If sealant, mastic, or tape is used to provide abetter seal, it should be approved by applicablenational or local codes.ALTERNATE ATTACHMENT METHODSThis procedure may also be used to install afurnace duct connector to narrow metalductwork where insufficient clearance preventsTABSDUCT1. INSERT DUCT CONNECTOR INTODUCT CUT-OUT.TABSDUCT2. BEND BOTTOM TABS OVERAND ONTO THE UNDERNEATHDUCT SERVICE.Figure 16. Installation of Duct ConnectorDuct ConnectorNarrow DuctDuctFigure 17.12

bending of the duct connector tabs at theside(s) of the duct. (See Figure 18).1. Score and cut the top of the metal duct asindicated in Step 1 or Step 2. With Step 1choice, also cut out the metal from the shadedarea “A”.2. Fold the duct flap “B” up, (See Step 3).3. At the front-to-back of duct run (Area “A”),bend the duct tabs and secure them directlyto the duct.4. At Area “B”, bend the duct tabs up and backover, around the duct connector, (SeeStep 3).5. Fold/form the duct flap against the side of theduct connector and attach as shown, (SeeStep 4). Use three (3) staples (minimum) oneach duct flap OR, if a 2X block/joist is notprovided, use two (2) sheet metal screws(minimum) on each duct flap. An alternateattachment method is acceptable, as long asthe duct connector is securely attached.6. Tape the duct flap edges with an approvedtape for a leak-free joint.INSTALL FURNACEa. Remove furnace outer door(s) and bottomfuel line knockout.b. Place furnace onto duct connector and center with floor opening.c. Slide onto mounting plate. (Bottom rear slotson furnace should engage with mountingplate tabs.)d. Secure front with one (1) fastener at eachcorner (See Figure 19 or 20).NOTE: Additional fasteners may be used atrear, sides or through door frame, as desired,to secure furnace to closet or alcove framing.INSTALL ROOF JACKApply caulking compound on underside of roofflashing to form a continuous strip at least 3/8"wide (see Figure 21) around the underside ofthe perimeter of the flashing. Connect RoofJack Assembly to the furnace. Insert telescoping Roof Jack Assembly through the openingcut on the roof. Connect flue pipe to flue collarof furnace. Connect combustion air pipe tofurnace collar with sheet metal screw (SeeFigure 22). It is recommended that the connection of the combustion air pipe to the furnace bemade before the flashing is secured to the roofto maintain alignment of roof jack and furnaceconnections.NOTE: For replacement furnaces, be sure theinner flue pipe connects over the furnace ventcollar. DO NOT use a smaller diameter innerflue pipe which could slide inside the furnace vent collar and restrict the flow offurnace flue products.Attach Roof Flashing: If necessary, shift roofflashing slightly in the roof opening so thatassembly is in good alignment with furnace.Press down firmly over caulking on roof flashingto make the seal with roof water tight. Secureflashing with appropriate fasteners. As anSTEP 2.STEP 1.Fold Back Flap "B"Cut- OutArea "A"Fold Back Flap"B""B""A""A""A""A""B"Cut- OutArea"A"CutLinesDuct"B"Top of DuctFold Back Flap"B"Fold Back Flap "B"Staple Folded DuctFlap (typ) to side of DuctConnectorBend Duct Connector Tabs Upand Over- (along length of duct)Duct"B"DuctFlap "B"DuctSTEP 4.STEP 3.Figure 18.13

added protection against leaks, coat the flashing plate and fasteners with approved roofingcompound.SLIDE FURNACEALL THE WAY BACKONTO MTG. PLATEMTG. PLATE TABSSECURE FURNACEWITH 2 FASTENERS AT FRONTCORNER HOLES12. INSTALLATION OF TRANSITMODE VENTING SYSTEMKnockout Over HolesSUPPLY AIR DUCTFigure 19. “A”, “B”, & PlatinumCabinet FurnacesSLIDE FURNACEALL THE WAY BACKONTO MTG. PLATEMTG. PLATE TABSSECURE FURNACEWITH 2 FASTENERSAT FRONT CORNER HOLESFUELLINEHOLESSUPPLY AIR DUCTFigure 20. “A” Cabinet Furnace on 911969Coil Cabinet (Non-Platinum Series)Secure Roof Jack withappropriate fastenersafter connecting ;;;;;;;;;;;;;;;;

M1 Series gas and oil furnaces are listed direct vent (sealed combustion), downflow heating appliances for manufactured (mobile) homes, recreational vehicles, and for use in residential/ modular/commercial construction. The furnace must be located so that venting can be properly achieved.