Page 2 - Required Notice for Massachusetts Installations; Important
440 01 1024 04 Specifications are subject to change without notice. 2 Required Notice for Massachusetts Installations Important The Commonwealth of Massachusetts requires compliance with regulation 248 CMR as follows:5.08: Modifications to NFPA − 54, Chapter 10 2) Revise 10.8.3 by adding the followi...
Page 3 - START; Checks and Adjustments
Specifications are subject to change without notice. 440 01 1024 04 3 START − UP CHECK SHEET For 90+ Furnace (This sheet is optional. Keep this page for future reference.) Date of Start − Up: Dealer Name : Address : City, State(Province), Zip or Postal Code : Phone : Owner Name : Address : City, Sta...
Page 4 - SAFETY CONSIDERATIONS; Safe Installation Requirements; WARNING; NOTE
4 440 01 1024 04 Specifications are subject to change without notice SAFETY CONSIDERATIONS I m p r o p e r i n s t a l l a t i o n , a d j u s t m e n t , a l t e r a t i o n , s e r v i c e , maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death,...
Page 5 - Safety Rules; Frozen Water Pipe Hazard; during freezing weather without turning off water; CAUTION; Winter Shutdown
440 01 1024 04 Specifications are subject to change without notice 5 • When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space containing the furnace, the return air shall also be handled by a duct(s) sealed to the furnace casing and terminatin...
Page 6 - Installation; tion Air Check; Location and Clearances; Combustion & Ventilation Air; “Condensate Trap Freeze Protection Section”)
6 440 01 1024 04 Specifications are subject to change without notice Installation CARBON MONOXIDE POISONING HAZARDFailure to follow this warning could result in personal injury or death.This furnace can NOT be common vented or connected to any type B, BW or L vent or vent connector, nor to any porti...
Page 7 - Installation Requirements; NOT
440 01 1024 04 Specifications are subject to change without notice 7 Installation Requirements 1. Install furnace level.2. This furnace is NOT to be used for temporary heat of buildings or structures under construction. 3. Install the vent pipes as short as practical. (See Gas Vent Installation sect...
Page 8 - TOP; FRONT
21 5 / 8 25 − 23 − 36b Figure 3 Dimensions & Clearances TOP F G E H AIR INTAKE VENT (N9MPD & *9MPD) FRONT A B D BOTTOM 3 7 / 8 23 1 / 8 2 3 / 8 AIR INTAKE (KO)(ALTERNATE) RIGHT SIDE TRAP (COUNTERFLOW) ELECTRICAL (KO) VENT (KO) TRAP (KO)UPFLOW/HORIZONTAL THERMOSTAT 1 1 / 4 2 7 / 8 28 1 / 2 18...
Page 9 - Use care and wear appropriate clothing, safety; Hammer and Screwdriver used
440 01 1024 04 Specifications are subject to change without notice 9 Knock Outs CUT HAZARDFailure to follow this caution may result in personal injury.Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate clothing, safety glasses and gloves when handling parts and servicing ...
Page 10 - Horizontal Furnace Installation; Typical Horizontal Installation; For Single Pipe Installation; combustion and ventilation air.; Outdoor Combustion Air Method
10 440 01 1024 04 Specifications are subject to change without notice mentionnées. Le standard Canadien recommande l’inspection par un personel qualifié et ce, une fois par année.Les autoritées ayant juridiction (inspecteurs de gas, inspecteurs en bâtiments, département des incendies, etc) devraient...
Page 11 - Requirements; Figure 6; Table 1
440 01 1024 04 Specifications are subject to change without notice 11 5. When sizing a grille, louver, or screen use the free area of opening. If free area is NOT stamped or marked on grill or louver, assume a 20% free area for wood and 60% for metal. Screens shall have a mesh size not smaller than ...
Page 12 - Indoor Combustion Air; Standard; and; ft
12 440 01 1024 04 Specifications are subject to change without notice Indoor Combustion Air ! CARBON MONOXIDE POISONING HAZARDFailure to follow this warning could result in personal injury or death.Most homes will require additional air from outdoors for combustion and ventilation. A space with at l...
Page 13 - Ventilation Air; For Two Pipe Installation
440 01 1024 04 Specifications are subject to change without notice 13 openings in doors or floors having a total minimum free area of 2 in. 2 /1,000 BTUH (44 cm 2 /kW) of total input rating of all appliances. • An attic or crawl space may be considered a space that freely communicates with the outdo...
Page 14 - Vent and Combustion Air Piping; Contaminated Combustion Air
14 440 01 1024 04 Specifications are subject to change without notice Vent and Combustion Air Piping CARBON MONOXIDE POISONING HAZARDFailure to follow this warning could result in personal injury or death.Use methods described here to provide combustion and ventilation air. ! WARNING Single Pipe (N9...
Page 15 - Sizing Combustion Air and Vent Pipe; Table 3; Vent Termination Clearances
440 01 1024 04 Specifications are subject to change without notice 15 11. All vertical pipe runs MUST be supported every six feet (1.8m) where accessible. 12. The minimum vent length is 5 ′ (1.5m) of PVC. 13. The piping can be run in the same chase or adjacent to supply or vent pipe for water supply...
Page 16 - Figure 8
16 440 01 1024 04 Specifications are subject to change without notice Figure 8 Direct Vent Termination Clearance V V Item Clearance Description Canadian Installation (1) U.S. Installation (2) A Clearance above grade, veranda, porch, deck, balcony, oranticipated snow level 12 ″ (30cm) # 12 ″ (30 cm) ...
Page 17 - Figure 9
440 01 1024 04 Specifications are subject to change without notice 17 Figure 9 Other than Direct Vent Termination Clearance V V Item Clearance Descriptions Canadian Installation (1) U.S. Installation (2) A Clearance above grade, veranda, porch, deck, balcony, oranticipated snow level 12 ″ (30cm) # 1...
Page 18 - Condensate Drain Trap; Condensate Drain Trap Freeze Protection; MUST
18 440 01 1024 04 Specifications are subject to change without notice Condensate Drain Trap This furnace removes both sensible and latent heat from the products of combustion. Removal of the latent heat results in condensation of the water vapor. The condensate is removed from the furnace through th...
Page 19 - Upflow Installations Top Vent; Trap
440 01 1024 04 Specifications are subject to change without notice 19 INLET EXHAUST IN ON OFF VENT AIR FLOW Figure 11 Upflow Installations Top Vent Street Elbow 1 / 2 CPVC (Loose parts bag) Drain Tee Coupling & Clamps(Optional) 25 − 24 − 80 Single Pressure Switch Dual Pressure Switch Detail On S...
Page 20 - Upflow Installations Vent through Left; Both
20 440 01 1024 04 Specifications are subject to change without notice INLET EXHAUST IN ON OFF VENT Figure 12 Upflow Installations Vent through Left − Side Coupling & Clamps(Optional) 25 − 24 − 81 Single Pressure Switch Dual Pressure Switch Detail Tee Trap White PVC(loose parts bag) 2 (50.8mm) PV...
Page 21 - All Models Vent through Right
440 01 1024 04 Specifications are subject to change without notice 21 EXHAUST AIR FLOW INLET IN ON OFF VENT Figure 13 All Models Vent through Right − Side Casing GrommetBlack Rubber 5 / 8 (15.9mm) CPVC (Loose parts bag) Drain Connector Black PVC 3 / 4 (19.1mm) PVC X 1 / 2 (12.7mm) CPVC(Loose parts b...
Page 22 - EXHAUS; Downflow Left; Note
22 440 01 1024 04 Specifications are subject to change without notice Elbow Tube Black Rubber 1 / 2 (12.7mm) ID & Clamps (LooseParts Bag) AIR FLOW OFF ON AIR FLOW Figure 14 Downflow Left − Side Vent and Trap 25 − 24 − 69 Single Pressure Switch Detail Dual Pressure Switch Tee Trap White PVC(loose...
Page 23 - Downflow Right
440 01 1024 04 Specifications are subject to change without notice 23 AIR FLOW OFF ON Figure 15 Downflow Right − Side Vent and Trap Drain Connector BlackPVC 3 / 4 (19.1mm) PVC X 1 / 2 (12.7mm) CPVC (Loose partsbag) Trap Connection “Clamp ears”Pointed OUT Preassemble &insert into furnace 25 − 24 ...
Page 24 - Horizontal Left through Top
24 440 01 1024 04 Specifications are subject to change without notice AIR FLOW OFF ON Figure 16 Horizontal Left through Top Plastic CapsYellow or black Vent Drain& Clamps Trap Connection “Clamp ears”Pointed OUT Preassemble &insert into furnace 25 − 24 − 70 Single Pressure Switch Detail Dual ...
Page 25 - Horizontal Left
440 01 1024 04 Specifications are subject to change without notice 25 AIR FLOW OFF ON Figure 17 Horizontal Left − Side Vent 25 − 24 − 70a Single Pressure Switch Detail Dual Pressure Switch Tee Trap White PVC(loose parts bag) Flexible Tube Connector 3 / 16 (4.8mm) OD (Loose Parts Bag) Elbow Tube Blac...
Page 26 - Horizontal Right through Top
26 440 01 1024 04 Specifications are subject to change without notice OFF ON AIR FLOW Figure 18 Horizontal Right through Top 3 / 16 (4.8mm) ID Rub ber Tube 25 − 24 − 70b Single Pressure Switch Detail Dual Pressure Switch Tee Trap White PVC(loose parts bag) WARNINGAdd Cap and Clamp Drain Tube Black ...
Page 27 - Horizontal Right
440 01 1024 04 Specifications are subject to change without notice 27 OFF ON AIR FLOW Coupling & Clamps(Optional) Figure 19 Horizontal Right − Side Vent 25 − 24 − 70c Single Pressure Switch Detail Dual Pressure Switch Tee Trap White PVC (loose parts bag) Flexible Tubing Connector 3 / 16 (4.8mm) ...
Page 28 - Connecting Tee Trap to Condensate; Important: Prime both traps with water before operation.; Connecting Vent and Combustion Air Piping; to prevent leakage of flue gases.; Combustion Air Pipe Connection (; Dual Certified or; Vent Pipe Connection; Note: The vent fitting MUST be installed with the air flow
28 440 01 1024 04 Specifications are subject to change without notice Figure 20 Connecting Tee Trap to Condensate Trap and Main Drain Line Open Tee Tee Trap Condensate Trap Evaporator Coil Drain Line (Optional) Main Drain Line 25-24-85 INLET EXHAUST IN ON OFF VENT Representative drawing only, some m...
Page 29 - Joining Pipe and Fittings; Connecting Vent Pipes and Termination; Horizontal Termination
440 01 1024 04 Specifications are subject to change without notice 29 Figure 21 Proper Sealing Procedure for Combustion Blower Rubber Coupling & Clamps 90 Elbow CombustionBlower Vent Fitting& Clamps 25-24-14a Vent ExtensionPipe (Side PanelExit) Vent Pipe(Top Panel Exit) Vent Pipe Rotate down...
Page 30 - Sidewall Termination with Exterior; Recommended Alternate Installation; Using Exterior Risers; Rooftop Termination; Vent Termination Shielding
30 440 01 1024 04 Specifications are subject to change without notice 4. Install the couplings, nipple and termination elbows as shown and maintain spacing between vent and combustion air piping as indicated in Figure 22, Figure 23 and Figure 24 . A metal shield is recommended 18 ″ x 18 ″ (457.2mm x...
Page 31 - OR
440 01 1024 04 Specifications are subject to change without notice 31 Figure 26 Concentric Vent and Combustion − Air Roof Termination CombustionAir Exhaust 36” Min OR 36” Min 2” (50.8mm) Max (914.4mm) (914.4mm) 12 (304.8mm) Min. Grade orSnow Level Figure 27 Concentric Vent and Combustion − Air Sidew...
Page 32 - Concentric Termination; Table 5; Do not use field supplied couplings to extend the pipes.
32 440 01 1024 04 Specifications are subject to change without notice Concentric Termination CARBON MONOXIDE POISONING, FIRE AND EXPLOSION HAZARDFailure to follow this warning could result in personal injury, death and/or property damage.Inlet and outlet pipes may NOT be vented directly above each o...
Page 33 - Gas Supply and Piping; Gas Supply Requirements; Gas Piping Requirements
440 01 1024 04 Specifications are subject to change without notice 33 Gas Supply and Piping FIRE AND EXPLOSION HAZARDF a i l u r e t o f o l l o w t h i s w a r n i n g c o u l d r e s u l t i n personal injury, death and/or property damage.Models designated for Natural Gas are to be used with Natur...
Page 34 - Typical Gas Piping for Upflow; Typical Gas Piping for Downflow; Additional Propane Connection Requirements; when operating the furnace with Propane gas.
34 440 01 1024 04 Specifications are subject to change without notice Figure 31 Typical Gas Piping for Upflow ON OFF ON OFF ON O FF Use elbows and 3 (76.2mm)pipe nipple to con nect valve to piping when using right side gaspipe entry. * Union may be installed inside the cabinet when necessary becaus...
Page 35 - Table 8; Manifold Gas Pressure Adjustment; Table 9
440 01 1024 04 Specifications are subject to change without notice 35 Alternate BTUH Input Ratings (USA Only) * The input rating of these furnaces can be changed from the standard input rating to the alternate input rating shown in Table 8, by changing the main burner orifices. Changing of burner or...
Page 36 - General Derating Rules
36 440 01 1024 04 Specifications are subject to change without notice Table 11 NATURAL GAS MANIFOLD PRESSURE (in wc)FOR THE 40k, 60k & 80k BTUH MODEL AND ALTERNATE INPUT MODELS 20,000 BTU per burner HEATING VALUE at ALTITUDE BTU/CU. FT. MEAN ELEVATION ABOVE SEA LEVEL − ft(m) 0 to 2000 (0 to 609....
Page 37 - High Altitude Input Rate =; High Altitude Air Pressure Switch; Natural Gas Input Rating Check; SEE CHECKS AND ADJUSTMENTS, Natural Gas Input Rating; Final Gas Piping Check; AVERTISSEMENT
440 01 1024 04 Specifications are subject to change without notice 37 High Altitude Input Rate = Nameplate Sea Level Input Rate x (Multiplier) [USA] Elevation ft (m) High Altitude Multiplier Natural Gas Propane Gas 2001 ′ - 3000 ′ (609.9 − 914.4) 0.95 0.90 3001 ′ - 4000 ′ (914.7 − 1219.2) 0.93 0.86 ...
Page 38 - Electrical Wiring; Power Supply Wiring; Furnace Control
38 440 01 1024 04 Specifications are subject to change without notice Electrical Wiring ELECTRICAL SHOCK HAZARDFailure to follow this could result in personal injury or death.Turn OFF electrical power at fuse box or service panel, lockout and tag switch with a suitable w a r n i n g l a b e l , b e ...
Page 39 - Furnace Control Fuse; Control Board; Ductwork and Filter; room where furnace is located. Return air duct; condensate to form resulting in heat exchanger; Connections; can not
440 01 1024 04 Specifications are subject to change without notice 39 Furnace Control Fuse The 24V circuit contains a 5 − amp, automotive − type fuse located on furnace control. (See Figure 35 ) Any electrical shorts of 24V wiring during installation, service, or maintenance may cause fuse to blow. ...
Page 40 - Side Return Air Cutout; Sizing; Side Mounted Filter Rack; Filter Installation using Optional Filter Rack; Bottom Mounted Filter Rack
40 440 01 1024 04 Specifications are subject to change without notice Figure 36 Side Return Air Cutout Embossed Area on Side of Furnace A = 14 1 / 2 ″ Height of Cutout for 16 ″ x 25 ″ Filter B = 22 1 / 2 ″ Width of Cutout for 16 ″ x 25 ″ Filter A Furnace Bottom B NOTE: Furnaces with 5 ton cooling ra...
Page 41 - Addition Of Air Conditioning; Combustible Floor Installation; Subbase for Combustible Floor
440 01 1024 04 Specifications are subject to change without notice 41 Figure 40 Standoff Filter Rack 25 − 21 − 45a Using OptionalStandoff FilterRack ! REDUCED FURNACE LIFE HAZARDFailure to follow this caution may result in reduced furnace life.If filters are only suitable for heating application, ad...
Page 42 - Verify the input rate of the furnace.; Startup; Gas Supply Pressure
42 440 01 1024 04 Specifications are subject to change without notice The Subbase for Combustible Floors MUST be used when a downflow furnace is set on a combustible floor, even when the furnace is installed on a coil box. 1. Cut the opening in the floor according to Table 13 . The hole in the floor...
Page 43 - immediately shut OFF power to furnace. Check for; Typical Gas Control Valve; Main Burner
440 01 1024 04 Specifications are subject to change without notice 43 ! FIRE OR EXPLOSION HAZARDFailure to follow this warning could result in personal injury, death and/or property damage.If any sparks, odors or unusual noises occur, immediately shut OFF power to furnace. Check for wiring errors or...
Page 44 - Temperature Rise Check; Continuous-Fan Operation using “G”
44 440 01 1024 04 Specifications are subject to change without notice Temperature Rise Check The blower speed MUST be set to give the correct air temperature rise through the furnace as marked on the rating plate. Temperature rise is the difference between supply and return air temperatures.To check...
Page 45 - Furnace Maintenance; See
440 01 1024 04 Specifications are subject to change without notice 45 Furnace Maintenance See “User’s Information Manual”. FIRE, EXPLOSION, OR CARBON MONOXIDE HAZARDFailure to follow this warning could result in personal injury or death.It is recommended that the furnace be inspected and serviced on...
Page 46 - Sequence of Operation & Diagnostics
46 440 01 1024 04 Specifications are subject to change without notice Sequence of Operation & Diagnostics The following is the normal operating sequence. Cooling (Y) Request: 24VAC signals applied to Y & G terminals of FCB (furnace control board) • Cool motor speed is energized after 5 secon...
Page 47 - Heating Request with Gas Shut Off:
440 01 1024 04 Specifications are subject to change without notice 47 Heating Request with Gas Shut Off: 24 VAC signal applied to W terminal of FCB.The FCB will attempt 4 cycles for ignition then go to soft lockout for 3 hours then try for ignition again as long as the heat call remains.Power reset ...
Page 48 - Four Position Furnace; Models
48 440 01 1024 03 Specifications are subject to change without notice Dual Certified N9MPD040F08A2 N9MPD050F12A2 N9MPD060F12A2 N9MPD075F12A2 N9MPD080J16A2 N9MPD100J14A2 N9MPD100J20A2 N9MPD125L20A2 or Dual Certified *9MPD050F12C2 *9MPD075F12C2 *9MPD080J16C2 *9MPD100J14C2 *9MPD100J20C2 *9MPD125L20C2 S...
Page 49 - Model Specifications
440 01 1024 04 Specifications are subject to change without notice. 49 Model Specifications Manufacturers Number (Mfr No - See Rating Plate ) ALL Models Specifications (N9MP1) N9MP1040B08C N9MP1050B12C N9MP1060B12C N9MP1075B12C General Gas TypeInput (Btuh)Output (Btuh)Transformer Size (VA)T'stat Hea...
Page 57 - See Tables below for bellyband location on motor; Bellyband Location on *9MPD Motor
440 01 1024 04 Specifications are subject to change without notice. 57 CIRCULATION AIR BLOWER DATA (CFM#) N9MP1100J20, N9MP2100J20, N9MPD100J20, *9MPD100J20 * Denotes Brand (1)(5) External Static Pressure (in wc/Pa) Speed Tap Low Med L Med H Hi in wc Pa CFM L/s CFM L/s CFM L/s CFM L/s 0.10 25 1682 7...
Page 59 - amp fuse; M P
440 01 1024 04 59 INDUCED − COMBUSTION GAS FURNACE PARTS REPLACEMENT INFORMATION GUIDE CASING GROUP Blower doorFront doorDoor filler plateTop panel gasketBlower partition INDUCER GROUP Gasket inducer motorPressure switch(es)Inducer assembly BLOWER GROUP Blower assemblyBlower hangerBlower housingBlow...
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