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1. 10 1 Nat VR 8205S SNAP Hot Surface 3 5 4 42 Integrated 30 60 100 140 180 1013812 1 5 1 3 1013813 1 2 1 0 11 10 10 1050 PSC 10 370 16x25x1 213 3144 1013802 2 2 2 0 1013803 2 0 1 8 11 10 10 1050 PSC 10 370 16x25x1 111 2 3 311 14 4 1013802 2 2 2 0 1013803 2 0 1 8 NAHA002LV 1013515 1 0 0 8 1 7 1 5 NAHA003LV 1013165 0 7 0 6 1 4 1 2 11 10 13 900 PSC 40 370 16x25x1 31 4 411 5 15 0 1013166 1 3 1 1 1 8 1 6 1013157 0 9 0 7 1 7 1 5 11 10 13 900 PSC 40 370 16x25x1 EU HU 440 01 1021 02 CIRCULATION AIR BLOWER DATA CFM N9MP1050B12 N9MP2050B 12 1 9MPD050F12 1 Denotes Brand Speed Tap g 9 0 1 2 f 7 i 0 2 2o gu 2 A Q 2 so 0 4 s H U Ns o 0 5 a6 ab cs ES 0 6 T 3 x El 0 7 Lu Lu 0 8 0 9 1 0 N9MP1075B 12 N9MP2075B12 1 M 9vMPDO75F12 1 r Low MedL MedH Hi Speed Low ap Tap o o 0 1 706 1163 1368 7 E l 0 2 677 1120 1319 9 as E Es 0 3 636 1076 1263 3 55 0 4 595 812 1031 1202 202 a 8 a g 0 5 546 766 987 1148 2 22 766 8 SL EE EE 0 6 490 90 o El El 0 7 BER bu UU 0 8 0 9 aos 1 0 TE TE 601 747 1 0 ZTA N9MP1080F16 N9MP2080F16 1 M 9mMPDO
2. Keep all insulating materials clear from louvered door Insulating materials may be combustible The horizontal furnaces may be installed directly on combustible wood flooring or supports as long as all required furnace clear ances are met See Figure 5 This furnace MUST NOT be installed directly on carpeting or tile or other combustible material other than wood flooring or supports For horizontal installation over a finished living space A field fabri cated auxiliary drain pan with drain pipe is required to prevent 440 01 1021 02 damage by overflow due to blocked condensate drain 3 Combustion amp Ventilation Air For Single Pipe Installation a WARNING CARBON MONOXIDE POISONING HAZARD Failure to provide adequate combustion and ventilation air could result in death or personal injury Use methods described here to provide combustion and ventilation air Furnaces require ventilation openings to provide sufficient air for proper combustion and ventilation of flue gases All duct or open ings for supplying combustion and ventilation air must comply with the gas codes or inthe absence of local codes the applicable na tional codes Combustion and ventilation air must be supplied in accordance with one of the following 1 Section 8 3 Air for Combustion and Ventilation of the National Fuel Gas Code NFGC ANSI Z223 1 2002 NFPA 54 2002 in the U S 2 Sections 7 2 7 3 7 5 7 6 7 7 and 7 8 of National
3. Remove the inducer mounting screws rotate the inducer 180 and retighten the inducer screws to 20 pounds torque Disconnect the hoses from the Trap assembly and remove Trap and Trap mounting bracket from the blower compartment Using cover plate and gasket provided in the loose parts bag cover the hole from the burner compartment to the blower compartment and secure with screws Move the caps to the top of the Trap and mount the Trap externally to the left side of the unit using the 2 screws provided Cutthe 5 g ID corrugated hose as shown above and fasten the 90 bend end to the Trap and fasten the straight end to the transition drain Secure both connections with clamps Reconnect the 1 2 ID drain hose from the vent drain to the Trap and secure with aclamp Insome cases additional length will be required for this hose Use the Black plastic 1 3 OD barbed cou pling and a suitable section of 1 2 ID hose to make the connection Secure all connections with clamps Connect the 3 ID relief tube from the small port on the Trap to the top port of the transition as shown inthe picture Insome cases Barbed Coupling 1 2 OD Preassemble amp Loose Parts Bag insert into furnace 25 24 83 additional hose length will be needed Use the clear plastic 3 46 OD flexible tubing connector and a suitable length of extra 3 46 ID hose to make this connection Install the vent pipe grommet into the casing Cut an ap
4. The fan stays at Heat speed The fan de energizes after the selected Heat Fan Off Delay time expires timed from the gas valve de energizing HUMIDIFIER The 24V HUM is energized when the pressure switch closes on a call for heat The 115V HUM called HUM on Control is energized when the inducer is energized ELECTRONIC AIR CLEANER EACis energized when there is a blower speed call It is NOT energized when blower operates inthe hard wired continuous fan mode NOTE 4 If a new Heating request arrives while the control is waiting in the Heat Fan Off Delay time the FCB will wait for the selected Heat Fan Off Delay then start a new heating cycle as long as the heat call remains 440 01 1021 02 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 will clear lockout Inducer motor turns on Following a 15 second prepurge delay the igniter begins warm up The igniter glows red hot for 22 seconds then turns off The FCB flashes error code 6 The igniter stays off for 17 seconds then begins to warm up again The igniter glows red hot for 22 seconds then turns off The FCB continues flashing error code 6 e The igniter stays off for 17 seconds then begins to warm up again e The igniter glows red hot for 22 seconds then turns off The FCB continue
5. zontal installations For the downflow installation the vent and combustion air pipes attach to the furnace through the alternate locations on the furnace side panels Note On the Direct Vent furnace the vent pipe attaches to the fur nace through the side panels The combustion air pipe attaches to the top panel or to the alternate location on the side panel On the Single Pipe furnace the vent pipe attaches to the furnace through the furnace side panels Note Repositioning of the combustion blower is required for the vent pipe connection to the furnace through the right side panel See Vent and Combustion Air Piping section for further details Horizontal Furnace Installation Typical Horizontal Installation Inlet Pipe not used on Single Pipe model 25 23 34 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 5 Do not install furnace on its back or in the reverse airflow positions as safety control operation will be ad versely affected If the furnace is to be installed in a crawl space consult local codes A suitable concrete pad or blocks are recommended for crawl space installation on the ground NOTE 6 bottom clearance required for condensate trap Twenty four 24 inches between the front of the furnace and adja cent construction or other appliances MUST be maintained for ser vice clearance
6. 18 Minimum for cold climates substained below 0 F Y cane LEVEL 25 00 05F OR SNOW LEVEL Horizontal Termination 1 Cut wo holes 21 5 for 2 pipe 3 for 21 2 pipe or 31 5 for 3 pipe Do NOT make the holes oversized or it will be nec essary to add a sheet metal or plywood plate on the outside with the correct size hole in it 2 Check hole sizes by making sure it is 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 nipple and termination elbows as shown and maintain spacing between vent and combustion air piping as indicated in Figure 21 and Figure 22 A metal shield is recommended 18 x 18 min or 18 min diameter around the vent termination at the exterior wall to protect the house exterior materials from flue product or condensation freezing damage Using Exterior Risers 1 Install elbows and pipe to form riser as shown in Figure 22 2 Secure vent pipe to wall with galvanized strap or other rust resistant material to restrain pipe from moving 3 Insulate pipe with Armaflex or equivalent moisture resistant closed cell foam insulation or Fiberglass insulation if boxed in and sealed against moisture Sidewall Termination with Exterior Figure
7. A A d A O NY Ea AA Ea E 440 01 1021 02 Replacement Parts 9MPD Models 9MPDO50F12C1 9MPDO75F 12C1 9MPDO080J16C1 9MPD100J14C1 9MPD100J20C1 amp 9MPD125L20C1 Natural Gas Denotes Brand Replacement part supplied will be current active part For parts not listed consult place of purchase Description 9MPD Non Functional 050F12C 080J16C 100J14C 100J20C Trap Drain Tee 1171916 Tube 1 ID Drain 1171991 Tube 1 3 ID Elbow 1171992 Coupling 1 Barbed 1171993 Tubeing Ba ID Drain 1171994 Connector 3 4 X 1 5 1171995 Elbow 1 2 CPVC Street 1171996 Grommet Casing 1171997 Tube Relief Ext 1172239 Connector Relief Tube 1171998 Plate Cover 1171999 Gasket Cover Plate 1172000 Cap Drain Tee 1172255 Clamp Tee Cap 1172256 Installation Manual 44001102102 User s Manual 44102201100 pany S a pe PA A A A E NA sk A A EE E A E E A Aa AA A A NS PA d ed ed k ek k dk ek A A EK HR a gk ee ee ae ee ae NR ee ee lh H a 440 01 1021 02
8. ALL Models Specifications N9MP2 General Gas Type Input Btuh Output Btuh Transformer Size VA Tstat Heat Anticipator Temp Rise F N9MP2050B12C N9MP2075B12C N9MP2080F16C Nat LP Nat LP 50 000 75 000 80 000 45 500 68 000 72 000 40 40 40 50 50 50 35 65 40 70 35 65 Nat LP N9MP2100F14C N9MP2100J20C Nat LP Nat LP 100 000 100 000 91 000 96 500 40 40 50 50 40 70 40 70 N9MP2125J20C Nat LP 125 000 113 750 40 50 40 70 Electrical Volts Hz FLA 115 60 9 8 115 60 8 9 115 60 9 0 115 60 9 0 115 60 10 5 115 60 11 2 Rating Plate Amps 12 9 10 1 12 9 10 1 14 4 15 0 Gas amp Ignition Gas Type Gas Valve Honeywell Regulation Type IgnitionType Series Manifold Press Inch s WC Std Main Orifices No Size Furnace Controls Furnace Control Type Furnace Control Timed secs Combustion Flue Outlet Size Inches Std Outlet Temp F 5 No Elbows Blower Pressure 5 No Elbows WC Blower Pressure 40 5 90 DWV Elbows WC Transition Bx Pressure 5 No Elbows WC Transition Bx Pressure 40 5 90 DWV Elbows WC Limits amp Controls Rollout Switch F Limit Control Setting CF Standard Pressure Sw Part No Blower Switch Pressure Close WC Blower Switch Pressure Open WC Transition Switch Pressure Close WC Transition Switch Pressure Open C WC High Altitude Pressure Sw Part No Blower Switch Pressure Clo
9. Figure 33 B Cement the 3 rain cap to the 21 2 diameter drill a clearance hole in the rain cap and a pilot hole kit part See Figure 33 NOTE A field supplied stainless in the vent pipe for the screw size being used steel screw may be used to secure the rain cap to the pipe Failure to drill adequate holes may cause cracking instead of cementing when field disassembly is desired for of the PVC components allowing flue gases to be cleaning See Figure 33 recirculated 440 01 1021 02 WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in death or personal injury Concentric Vent and Combustion Figure 34 Air Side Termination A Roof Overhang Do not operate the furnace with the rain cap removed as recirulation of the flue gases may occur Water may also collect inside the larger combustion air pipe and flow to the burner 1 max ee Pe al enciosure ee oe Combustion Air 6 Installthe Y concentric fitting and the pipe assembly through the structure s hole For vertical termination install the parts Maintain 12 ws x lt a aintain 12 clearance above highest antici through the field supplied roof boot flashing NOTE Do not pated snow level or grade whichever is greater allow insulation or other materials to accumulate inside the pipe assembly when installing through the structure s hole 25 22 02 7 Securethe assembly tothe structure as shown in Figure 31 or Fig
10. Models ONLY 2 PVC Coupling Either The PVC Drain Tee or a field supplied 2 PVC Tee e J Tee Trap White PVC loose parts bag Drain Tube Corrugated Blan ID amp Clamps LA Drain Connector Black ye PVC 3 4 PVC X 12 CPVC WARNING Move Caps to top of trap Drain Tube Black Rubber Loose parts bag SI ID Cut to fit amp Clamps loose parts bag 25 24 83a Downflow Right Side Vent and Trap See Figure 14 Remove the Drain Tee if installed Disconnect the hoses from the Trap assembly and remove Trap and Trap mounting bracket from the blower compartment Using cover plate and gasket provided in the loose parts bag cover the hole from the burner compartment to the blower compartment and secure with screws Move the caps to the top of the Trap and mount the Trap externally to the right side of the unit using the 2 screws provided Connect the corrugated Drain Tube from the transition box to the Trap as shown If an extension is required use the black PVC tube connector and the black 5 8 ID Drain Tube in the loose parts bag Cut tube to length Secure all connections with clamps Connect the drain hose from the Vent Drain to the Trap If an ex tension is required use the black 1 7 OD barbed coupling con nect a blac
11. amp Clamps Relief Tube Black Rubber 31 16 ID Either The PVC Drain Tee or a field pplied 2 PVC Tee Single Pressure Switch Detail G Drain Tube o t 2 PVC Coupling E EXHAUST Corrugated 5 3 ID amp Clamps _ Tee Trap White PVC 7 loose parts bag SIDE VIEW Mas Elbows Tubes 2 amp Clamps Black 1 ID loose parts bag Barbed Coupling 1 2 OD I rts b cose parte bag Drain Line Vent Tee 3 4 PVC or 1h CPVC Field supplied Drain Connector Black PVC 314 PVC X 11 CPVC Loose parts bag Casing Grommet NOTE Built in channel will Black Rubber 5 g CPVC be angled 5 to 10 also All Models Vent thru Right Side See Figure 12 Disconnect the black Drain Tube between the drain vent and the Trap Rotate the inducer 180 for a right side vent after loosening the 4 inducer attachment screws Reinstall and retighten the inducer screws to 20 pounds torque Using the 1 2 OD barbed coupling in the loose parts bag connect together with the 2 short 1 2 ID elbow tubes and connect the lower discharge port of the vent drai
12. ing connector and the black 1 2 ID Drain Tube in the loose parts bag Cut tube to length Secure connections with clamps Connect the 3 46 ID relief tube to the middle port on the Trap If an extension is required use the 3 46 OD flexible tubing connector 440 01 1021 02 Flexible Tubing Connector 3 16 OD Loose Parts Bag Drain Tube Black 5 2 ID Corrugated Cut at straig t section Leave room for clamp Cut Here 25 24 88 and the black 3 46 ID relief tube in the loose parts bag Cut tube to length Cut an appropriate length of 2 PVC pipe fittings and extension pipe long enough to exit the cabinet and connect the vent drain to either e Astandard field supplied 2 PVC tee N9MP1 models or e A 2 PVC coupling fastened onto the Drain Tee 9MPD models Install Tee Trap into bottom section of Tee Important The pipe to the Tee Trap must be level or sloping to wards the Tee Trap Connect the Tee trap and the main drain line exiting the casing as shown in Figure 19 Note It is recommended that all PVC piping and fitting connec tions be fit up and inspected before final cementing Both the ex ternal Trap and the external Tee Trap must be primed before operation Verify all condensate drain connections are securely clamped A coupling and clamps in loose part bag may be installed as shown for future servicing of the vent system A coupling and clamps in loose part bag
13. may be installed as shown for future servicing of the vent system Figure 17 Horizontal Right thru Top Trap Connection P Clamp ears Single Pressure Switch Detail Alternate Orienation Pointed OUT Preassemble amp insert into furnace Plastic Cap Yellow or black T Coupling amp Clamps Optional Field Supplied Tee Vent Drain amp Clamps WARNING Add Cap and Clamp EXHAUST Tee Trap Relief Tube Rubber Tube 3 6 ID Flexible Tubing Connector 3 16 OD Loose Parts Bag _ Relief Tube Extension Black Rubber 3 46 ID Cut to Fit Loose Parts Bag al X White PVC loose parts bag Elbow Tube Black Rubber 1 2 ID amp Clamps Loose Parts Bag gt O INLET lt 7 A On Some Models ONLY Dual Pressure Switch Barbed Coupling 1 2 OD Loose Parts Bag Drain Tube Corrugated 5 3 ID amp Clamps Cut at straight section Leave room for clamp Horizontal Right Thru Top See Figure 17 Disconnect the hoses from the Trap assembly and remove Trap and Trap mounting bracket from the blower compartment Using cover plate and ga
14. the applicable national codes When the installation is complete see the Venting and Combus tion Air Check in this manual Direct Vent N9MP2 Models This furnace is certified as a category IV appliance This furnace uses outside air for combustion ONLY it MUST be taken from the same atmospheric pressure zone as the vent pipe See Confined Space Installationinthe Combustion and Ventilation Air in this manual Dual Certified 9MPD Models This furnace is certified as a category IV appliance This furnace can be installed as a direct vent furnace using outside air for com 440 01 1021 02 bustion or the furnace can use air from inside the structure for com bustion The INLET air pipe is optional If combustion air comes from inside the structure adequate make up air MUST be provided to compensate for oxygen burned See Confined Space Installa tionin the Combustion and Ventilation Air chapter If combus tion airis drawn from outside the structure it MUST be taken from the same atmospheric pressure zone as the vent pipe Contaminated Combustion Air Installations in certain areas or types of structures will increase the exposure to chemicals or halogens that may harm the furnace The following areas or types of structures may contain or have ex posure to the substances listed below The installation must be evaluated carefully as it may be necessary to provide outside air for combustion e Commercial buildings
15. 2 0 2 0 1 8 1 8 NAHA003LV 1013165 0 7 0 6 1 4 1 2 11 10 10 1050 PSC h 10 370 16x25x1 11 2 3 31 1 10 13 900 PSCPI 40 370 16x25x1 3117 4 411 5 1013166 1 3 1 1 1 8 1 6 1013157 0 9 0 7 1 7 1 5 11 10 13 900 PSC 40 370 16x25x1 311 4 411 5 Manufacturers Number Mfr No See Rating Plate ALL Models Specifications 9MPD 9MPDO50F 12C OMPDO75F 12C 9MPD080J16C 9MPD100J14C 9MPD100J20C 9MPD125L20C General Gas Type Input Btuh Output Btuh Transformer Size VA Tstat Heat Anticipator Temp Rise F Electrical Volts Hz Nat LP 50 000 46 000 40 50 35 65 115 60 Nat LP 75 000 69 000 40 50 40 70 115 60 Nat LP 80 000 73 600 115 60 Nat LP 100 000 92 000 40 50 40 70 115 60 Nat LP 100 000 92 000 115 60 Nat LP 125 000 115 000 40 50 40 70 115 60 Rating Plate Amps Gas amp Ignition Gas Type Gas Valve Honeywell Regulation Type Ignition Type Series Manifold Press Inch s WC Std Main Orifices No Size Furnace Controls Furnace Control Type Furnace Control Timed secs Combustion Flue Outlet Size Inches Std Outlet Temp F 5 No Elbows Blower Pressure 5 No Elbows WC Blower Pressure 40 5 90 DWV Elbows WC Transition Bx Pressure 5 No Elbows WC Transition Bx Pressure 40 5 90 DWV Elbows WC Limits amp Controls Ro
16. 47 Figure 48 and Figure 49 4 Drop the plenum through the opening in the base The flange of the plenum should rest on top of the subbase 5 Position furnace or coil cabinet and furnace on subbase soit aligns between the locating tabs Combustible Floor Base 440 01 1021 02 Figure 48 Coil Cabinet Subbase 25 20 46b A 4 1 4 Minimum clearance from back of hole to wall or other obstruction Figure 49 Setting the Subbase Installation of Combustible Floor Base Wood Screw 9 Checks and Adjustments This subbase for combustible floors has been designed so that the height of the subbase raises the downflow coil off the floor to allow easy installation of the condensate drain See Figure 50 Figure 50 Condensate Line Raised by Base NOTE Verify the input rate of the furnace WARNING FIRE OR EXPLOSION HAZARD Failure to turn OFF gas at shut off before connecting manometer could result in death personal injury and or property damage Turn OFF gas at shut off before connecting manometer Startup NOTE Refer to the start up procedures in the User s Information Manual or to the Operating Instructions Labef on the furnace WARNING FIRE OR EXPLOSION HAZARD Failure to correct hazard could result in death personal injury and or property damage If any sparks odors or unusual noises occur immediately shut OFF power to furnace Check for wiring errors or obstru
17. A WARNING CARBON MONOXIDE POISONING FIRE AND EXPLOSION HAZARD Failure to properly vent this furnace could result in death personal injury and or property damage Inlet and outlet pipes may NOT be vented directly above each other standard vent terminals 1 Determine termination locations based on clearances spe cified in following steps and as shown in Figure 8 Figure 30 through Figure 35 2 The vent termination must be located at least 12 above ground or normally expected snow accumulation levels 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 Theventtermination shall be located at least 4 horizontally from any electric meter gas meter gas regulator and any relief equipment These distances apply ONLY to U S installations 5 The vent termination is to be located at least 3 above any forced air inlet located within 10 and at least 10 from a combustion air intake of another appliance except another direct vent furnace intake 6 In Canada the Canadian Fuel Gas Codetakes precedence over the preceding termination instructions Concentric Vent Termination Kit NAHA001CV amp NAHA002CV These kits are for vertical or horizontal termination of the combus tion air inlet and the exhaust vent pipes on Category IV gas fired condensing furnaces The NAHA001CV kit can b
18. Corrugated g ID amp Clamps Cut at straight sectich 1 Cut Here Leave room for clamp 25 24 84 and the black 3 46 ID relief tube in the loose parts bag Cut tube to length Secure all connections with clamps Cut an appropriate length of 2 PVC pipe long enough to exit the cabinet and connect the vent drain to either s Astandard field supplied 2 PVC tee N9MP1 models or e A 2 PVC coupling fastened onto the Drain Tee 9MPD models Install Tee Trap into bottom section of Tee Connect the Tee trap and the main drain line exiting the casing as shown in Figure 19 Note It is recommended that all PVC piping and fitting connec tions be fit up and inspected before final cementing Both the ex ternal Trap and the external Tee Trap must be primed before operation Verify all condensate drain connections are securely clamped A coupling and clamps in loose part bag may be installed as shown for future servicing of the vent system 440 01 1021 02 Figure 16 Horizontal Left Side Vent Single Pressure Switch Detail Alternate Orienation gt EXHAUST Field Yellow or black Plastic Cap AN 2 RIOS Supplied Tee Level or Sloped towards Tee Dual Pressure Switch Vent Drain amp Clamps Relief Elbow Tube Black Ru
19. Date of Start Up CO CO2 440 01 1021 02 1 Safe Installation Requirements e Thi is NOT i re A a WARNING oe an FIRE EXPLOSION AND ASPHIXIATION HAZARD Seal around supply and return air ducts Improper adjustment alteration service maintanence or installation could cause death personal injury and or property damage Unit MUST be installed so electrical components are pro Installation or repairs made by unqualified persons tected from direct contact with water could result in hazards to you and others Install correct filter type and size Installation MUST conform with local codes or in Safety Rules the absence of local codes with codes of all governmental authorities having jurisdiction Your unit is built to provide many years of safe and dependable service providing it is properly installed and maintained However The information contained in this manual is abuse and or improper use can shorten the life of the unit and intended for use by a qualified service agency that create hazards for you the owner is experienced in such work is familiar with all precautions and safety procedures required in A The U S Consumer Product Safety Commission encourages such work and is equipped with the proper tools installation of carbon monoxide alarms There can be various and test instruments sources of carbon monoxide in a building or dwelling The sources could be gas fired clothes dryers gas cooking sto
20. LP 100 000 96 500 40 50 40 70 Nat LP 125 000 113 750 40 50 40 70 Electrical Volts Hz FLA 115 60 9 8 115 60 8 9 115 60 9 0 115 60 9 0 115 60 10 5 115 60 11 2 Rating Plate Amps 12 9 10 1 12 9 10 1 14 4 15 0 Gas amp Ignition Gas Type Gas Valve Honeywell Regulation Type IgnitionType Series Manifold Press Inch s WC Std Main Orifices No Size Furnace Controls Furnace Control Type Furnace Control Timed secs Combustion Flue Outlet Size Inches Std Outlet Temp F 5 No Elbows Blower Pressure 5 No Elbows C WC Blower Pressure 40 5 90 DWV Elbows WC Transition Bx Pressure 5 No Elbows WC Transition Bx Pressure 40 5 90 DWV Elbows WC Limits amp Controls Rollout Switch E Limit Control Setting F Standard Pressure Sw Part No Blower Switch Pressure Close WC Blower Switch Pressure Open WC Transition Switch Pressure Close WC Transition Switch Pressure Open C WC High Altitude Pressure Sw Part No Blower Switch Pressure Close WC Blower Switch Pressure Open C WC Transition Switch Pressure Close C WC Transition Switch Pressure Open WC Long Vent Kit Part No Pressure Switch Part No Blower Switch Pressure Close WC Blower Switch Pressure Open C WC Transition Switch Pressure Close C WC Transition Switch Pressure Open C WC High Altitude Long Vent Kit Part No Pressure Switch Part No Blower Swit
21. Standard of Canada Natural Gas and Propane Installation Code NSCNGPIC CSA B149 1 05 in Canada 3 Applicable provisions of the local building code This furnace can NOT be common vented or connected to any type B BW or L vent or vent connector nor to any portion of a facto ry built or masonry chimney Multistory venting is NOT permitted If this furnace is replacing a previously common vented furnace it may be necessary to resize the existing vent and chimney to pre vent oversizing problems for the other remaining appliance s See Venting and Combustion Air Check in this section This fur nace MUST be vented to the outside This installation NOT approved in Canada Gable Vent teme Minimum One Inlet and One Outlet Air Supply is Required May be in and Combination Shown Inlet Air Opening Must be Within12 300mm of floor Outlet Air Opening Must be Within12 300mm of ceiling 1 1 Square Inch 6cm2 per 4000 BTUH 2 1 Square Inch 6cm per 2000 BTUH c Horizontal duct openings require 1 square inch of free area per 2 000 BTUH 1 100 mm2 kW of combined input for all gas appliances in the space see Table 1 E When the installation is complete check that all appliances have adequate combustion air and are venting properly See Venting And Combustion Air Checkin 4 Gas Vent Installation Section in this manual Outdoor Combustion Air Method Aspace having less than 50 cubic feet per 1 000 BTUH input
22. TAP CODE COLOR CODE BLACK Hi BEACK ORANGE MHI BROWN BLUE MLO GREENVELLOW GRN Y RED Lo P REANGE WHITE YELLOW LOW VOLTAGE FACTORY LOW VOLTAGE FIELD LINE VOLTAGE FACTORY LINE VOLTAGE FIELD CONDUCTOR ON CONTROL JUNCTION UNMARKED TERMINAL CONTROL TERMINAL TO 115VAC FIELD DISCONNECT NOTE 2 NEUTRAL INTERLOCK SWITCH HEAT COOL RELAY BLOWER ROLLOUT SWITCH 1TO3 IN SERIES DEPENDING ON MODEL MAIN LIMIT HUM_ 24 VAC S ALON OYVO4 Un 913 021LNI9 4 CONTROL BOARD rh EQUIPMENT GROUND Q INDUCER CAPACITOR SOME MODELS IGNITER HOiIDYdYI 115VAC FUSE 5A TRANSFORMER 24VAC COM PRESSURE SWITCH 1 TO 2 IN SERIES DEPENDING ON MODEL LP PRESS SWITCH LP MODELS ONLY NOTE 8 SENSOR NOTE 12 GENIGWOD XVINVOLWAH OVE 938 08 vd NO LV3H D3S 06 v 3d 430 1009 938 vdGNO 1009 AY 1290 2420 LY3H VIH AWG 440 a 100 SEC J1 100 180 60 140 140 SEC L TOYNLNOS JOVNYNA AWTSaG dO 1W3H AWIAG 2240 LV3H 180 SEC 330709 101 REV B wepe BUT N9MP1 N9MP2 or 9MPD 25 24 75a 3 a Q 0 5 o Q Le gt 8 gt y E D pol o E o a gt E o o E 5 o Z z P Dd 5 Q a E 440 01 1021 02 Replacement Parts NIMPT1 amp NIMP2 Models N9MP1050B12C1 N9MP1075B12C1 N9MP1080F16C1 N9MP1100F14C1 N9MP1100J20C1 amp N9MP1125
23. and ba sic connecting parts required Refer to Figure 5 for typical horizontal direct ventinstallation and basic connecting parts required Supply and return air plenums and duct are also required 2 Have someone check the structure frequently during cold weather to make sure it is warm enough to prevent pipes from freezing Instruct them on a service agency to call to provide service if required Or 3 Install areliable remote sensing device that will notify some body of freezing conditions within the home Winter Shutdown If you go away during the winter months and do not leave the heat onin your home the plastic transition box andthe condensate trap on the furnace must be protected from freeze damage See Figure 10 trough Figure 19 1 Disconnect the g OD rubber hose from the vent drain fit ting that is located downstream of the combustion blower Insert a funnel into the hose and pour four 4 ounces of sani tary type RV antifreeze into the condensate trap Recon nect the 5 8 OD rubber hose to the stub on the vent drain fitting Secure with the hose clamp 2 Disconnect the 3 4 OD rubber hose from the condensate trap Insert a funnel into the hose and and pour four 4 ounces of sanitary type RV antifreeze into the plastic Tran sition box Squeeze the hose together near the end and quickly reconnect the 3 4 OD rubber hose to the stub on the condensate trap Secure with the hose clamp When you return ho
24. can cause serious bodily injury death and or property damage Therefore in order to alert people of potentially dangerous fire or smoke you should have fire extinguisher and smoke alarms listed by Underwriters Lab oratories installed and maintained in the building or dwelling see Note below Note The manufacturer of your furnace does not test any alarms and makes no representations regarding any brand or type of alarms C Toensure safe and efficient operation of your unit you should do the following 1 Thoroughly read this manual and labels on the unit This will help you understand how your unit operates and the haz ards involved with gas and electricity 2 Do not use this unit if any part has been under water Im mediately call a qualified service technician to inspect the unit and to replace any part of the control system and any gas con trol which has been under water 3 Never obstruct the vent grilles or any ducts that provide air to the unit Air must be provided for proper combustion 440 01 1021 02 and ventilation of flue gases Frozen Water Pipe Hazard a CAUTION WATER DAMAGE TO PROPERTY HAZARD Failure to protect against the risk of freezing may result in property damage Do not leave your home unattended for long periods during freezing weather without turning off water supply and draining water pipes or otherwise protecting against the risk of frozen pipes and resultant damage Your fur
25. correct pipe size for run length and furnace rating Failure to follow these instructions could result in NG O etek OF Le secendslag8 death personal injury and or property damage NOTE In the state of M husetts Models designated for Natural Gas are to be used idk Lina Whee with Natural Gas ONLY unless properly converted to 1 Gas supply connectors MUST be performed by a licensed use with LP gas plumber or gas fitter 2 When flexible connectors are used the maximum length shall not exceed 36 915 mm 3 When lever handle type manual equipment shut off valves NOTE The rating plate is stamped with the model number gas are used they shall be T handle valves type and gas input rating In addition models manufactured for 4 The use of copper tubing for gas piping is NOT approved by sale in Canada have orifice size information stamped on the rating the state of Massachusetts plate NOTE Refer to Figure 36 or Figure 37 for the general layout at the furnace The rules listed apply to natural and LP gas pipe Gas Piping Requirements installations NOTE On the Dual Certified or Direct Vent models install the gas NOTE The gas supply line must be installed by a qualified service pipe grommet to the furnace side panel with the gas pipe entry If technician in accordance with all building codes needed remove the 2 hole plug and relocate to the open hole in the furnace side panel 440 01 1021 02 5 Use black iron or
26. number of ACH and shall be determined per Table 2 or Equations 1 and 2 Determine the minimum required volume for each appliance in the space and add the volumes together to get the total minimum required vol ume for the space MINIMUM SPACE QL FOR 100 COMBUSTION AND VENTILATION A FROM INDOORS ft ne 1 000s s Btuh E 000 s 1 400 750 1 250 1 875 2 500 1 680 2 100 1 500 2 250 3 000 3 125 3 750 2 100 2 625 1 875 2 813 3 750 4 688 NP Not Permitted 440 01 1021 02 Table 2 Minimum Space Volumes were determined by using the following equations from the National Fuel Gas Code ANSI Z223 1 NFPA 54 2002 8 3 3 2 1 For other than fan assisted appliances such as a draft hood equipped water heater I other 1000 Btu hr 21 ft3 Volume es other ACH 2 For fan assisted appliances such as this furnace Co 3 Volume Ian an 1000 Btu hr f ACH If I other combined input of all other than fan assisted appliances in Btu hr Iran combined input ofall fan assisted appliances in Btu hr ACH air changes per hour ACH shall not exceed 0 60 The following requirements apply to the Standard Method and to the Known Air Infiltration Rate Method e Adjoining rooms can be considered part of a space if there are no closable doors between rooms e Combining spaces on the same floor level Each opening shall have a free area of at least 1 2 1 000 BTUH 2 000 mm2 kW of the total input r
27. o N MA M M Be th os ON AV140 340 19 32H DVA PZ AnH Sl If any of the original equipment wire is replaced use wire rated 105 C Use only copper wire between the disconnect switch and the fumace junction box This wire must be connected to furnace sheet metal for control to prove flame Symbols are electrical representation only Solid lines inside circuit board are printed circuit board traces and are not depicted as shown in the legend Replace only with a 5 amp fuse Biower motor speed selections are for average conditions see installation instructions for details on optimum speed selection Factory connected when LP Pressure Switch and BVSS Chimney Adapter Accessory Kit are not installed Biower off delay gas heating selections are 60 100 140 and 180 seconds cooling or heat pump 90 seconds Ignition lockout will occur after four consecutive unsuccessful trials for ignition Control will auto reset after three hours Blower motor and inducer motor contain internal auto reset thermal overload switches Flame sensor 0 7 pA D C minimum 2 0 4 0 pA nominal Depending on model P4 inducer motor leads may be in a single connector or two quick connecters COPPER CONDUCTORS CAPACITOR ONLY SOME MODELS HOT L NEUTRAL IGNITER INDUCER GR NN Z JLON T A JUNCTION BOX HOLIMS 1207831N1 E R PSC BLOWER a gt a gt a C Q SPEED
28. of all as appliances in the space see Table 1 440 01 1021 02 3 When one permanent outdoor opening is used the opening requires a Tsd in of free area per 3 000 BTUH 700 mm2 kW for combined input of all gas appliances in the space see Table 1 and b notlessthanthe sum ofthe areas of all vent connectors in the space The opening shall commence within 12 of the top of the enclo sure Appliances shall have clearances of atleast 1 fromthe sides and back and 6 from the front The opening shall directly commu nicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces crawl or attic that freely communicate with the outdoors a Indoor openings that comply with the Indoor Combus tion Air Method below and b Outdoor openings located as required in the Outdoor Combustion Air Method above and c Outdoor openings sized as follows 1 Calculate the Ratio of all Indoor Space volume divid ed by required volume for Indoor Combustion Air Meth od 2 Outdoor opening size reduction Factor is 1 minus the Ratio in 1 above 3 Minimum size of Outdoor openings shall be the size required in Outdoor Combustion Air Method above 4 Combination of Indoor and Outdoor Air shall have multiplied by reduction Factor Minimum Free Area Required for Each Opening or Duct to Outdoors sq in 2 000 BTUH sq in 3 000 BTUH sq in 4 000 BTUH sq in 4 000 BTUH
29. operation Verify all condensate drain connections are securely clamped A coupling and clamps in loose part bag may be installed as shown for future servicing of the vent system 440 01 1021 02 Figure 18 Horizontal Right Side Vent Single Pressure Switch Detail Plastic Cap Yellow or black Coupling amp Clamps Optional ITC E Field Supplied Tee Vent Drain amp Clamps EXHAUST l Level or Sloped towards Tee Tee Trap 7 White PVC loose parts bag af Relief Tube Black Rubber 3 46 ID Flexible Tubing Connector 3 16 OD Loose Parts Bag Relief Tube ede Black Rubber 316 ID Cut to Fit Loose Parts Bag o Elbow Tube Black Rubber 1 1D amp Clamps Loose Parts Bag ar uE On Some Models ONLY INLET lt Alternate Orienation J gt Dual Pressure Switch Drain Tube Corrugated Bla ID amp Clamps Cut at straight section Leave room for clamp Cut Here Horizontal Right Side Vent See Figure 18 Disconnect Drain Tee if installed 9MPD models only Disconnect the hoses from the Trap assembly and remove Trap and Trap mounting brack
30. or more furnaces are vented near each other each furnace must be individually vented Two 2 vent terminations may be installed as shown in Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 and Figure 29 but the next vent termination must be at least 36 away from first 2 ter minations It is important that vent terminations be made as shown to avoid recirculation of flue gases a Concentric Vent and Combustion Figure 24 Air Roof Termination 12 Min Grade or Snow Level Combustion Air Dimension A is touching or 2 maximum separation 440 01 1021 02 Concentric Vent and Combustion Figure 25 Air Sidewall Termination Rooftop Inlet V ent and Exhaust 18 Min for Cold Climates Sustained Below 0 F ahs ee Inlet a 25 22 43 Recommended Alternate Figure 29 Installation for Sustained Cold Weather 0 F amp below OVERHANG EXHAUST 12 MIN 18 Min for a Cold Climates Sustained Below 0 F 12 Min Grade or Snow Level lt y Dimension A is touching or 2 maximum separation 12 MIN Ground Level OR Snow Level T 18 Min for Cold Climates Sustained Below 0 F FRONT VIEW SIDE VIEW Exhaust Snow Level Same Joist Space 25 23 73 Dimension A is touching or 2 maximum separation 440 01 1021 02 5 Concentric Termination Vent Termination Clearances
31. steel pipe and fittings or other pipe ap WA RN N G proved by local code FIRE OR EXPLOSION HAZARD 6 uU ae d 0 se ground joint unions and install a drip leg no less than 3 Failure to properly install metal gas connector long to trap dirt and moisture before it can enter gas valve could result in death personal injury and or property damage 7 Use two pipe wrenches when making connections to pre vent gas valve from turning A flexible corrugated metal gas connector must be g properly installed shall not extend through the side 8 of the furnace and shall not be used inside the f furnace Black iron pipe shall be installed at the furnace gas 9 lflocalcodes allow the use of flexible gas appliance connec control valve and extend a minimum of 2 outside tors always use a new listed connector Do not use a con furnace casing nector which has previously serviced another gas appliance Install a manual shut off valve external to furnace casing and tighten all joints securely Drip Leg and Union Union should be outside the cabinet Manual shut off valve MUST be upstream of dripleg union and furnace Manual shut off valve Use elbows and 3 pipe nipple to connect valve to piping when using right side gas pipe entry Alterative installation LP Low pressure Ban i Ji pS Models may switch REQUIRED GS have lor 2 pressure switches 25 24 86 Union may be installed in
32. the two side filter clips to the back of the furnace BEFORE installing or re moving This will allow the filter to clear the front raised edge of the furnace Insert filter into side clips first and push filter back until it is fully engaged into back clip When filter is in place slide clips back into place midway on filter as shown in Figure 44 and Figure 45 Figure 44 Bottom Mounted Filter Rack 26 Ga Galvanized Steel e p Refer to Figure 46 and for guidelines to install filters Furnaces which require larger filter media and have limited clearances on one side of furnace require a standoff filter rack see Figure 46 available from your distributor Figure 46 Standoff Filter Rack Using Optional Standoff Filter Rack 25 21 45a CAUTION If filters are only suitable for heating application advise homeowner that filter size may need to be increased if air conditioning is added Addition Of Air Conditioning When a refrigeration coil is used in conjunction with this unit it must be installed parallel with or on the discharge side of the unitto avoid condensation on the heat exchanger The coil installation in structions must be consulted for proper coil location and installa tion procedures With a parallel flow arrangement dampers must be installed to prevent chilled air from entering the furnace If manually operated dampers are used they must be equipped with a means to prevent operation
33. 0 7 Q Men Q Y o ho 2 a bi 9 he oO Q S 3 E LD E ke ke 9 g x 9MPD125L20 2 Denotes Brand Los Low Med L Med H Hi 1720 1910 2127 2315 1686 1881 2087 2268 N 8 6 1644 1833 2024 2201 z 1600 1777 1961 2131 E 8 1533 1720 1891 2029 E 3 0 6 1494 1647 1804 1948 5 0 7 1413 1571 1708 1820 ES 0 8 1306 1470 1604 1730 0 9 ao 1349 1484 1614 1 0 ME 1328 1430 Speed Tap 0 1 0 2 0 3 0 4 0 5 0 6 Inches of W C 0 7 Exterrnal Static Pressure 0 8 0 9 1 0 NOTE 1 Data based on Bottom Only or One Side return 2 Data based on Both Sides or Bottom plus One Side 3 100320 Reduce airflow by 5 if Bottom Only return 4 125320 Reduce airflow by 5 if Bottom Only return MAX CFM s 14 X 25 CFM 1400 1600 2000 2500 Filter required for each return air inlet Airflow performance includes 1 washable 600 FPM max filter media 440 01 1021 02 20 LZOL LO Ott LADDER DIAGRAM WARNING ELECTRICAL SHOCK HAZARD CONNECTION DIAGRAM DISCONNECT BEFORE SERVICING EJ ROLLOUT SWITCH 1 TO 2 IN SERIES DEPENDING ON Mi LP PRESSURE SWITCH WHEN USED ODEL MAIN UMIT BVSS WHEN USED y NOTE 8 1 PRESSURE SWITCH pE 1 TO 2 IN SERIES DEPENDING ON MODEL P5 NOTE 3 NOTE 12 SENSOR
34. 22 Risers to Get Above Snow Level or Grade Level 18 Minimum for cold climates substained below 0 F X GRADE LEVEL OR SNOW LEVEL 25 00 04F Vertical Termination 1 Figure 23 shows the proper installation and clearances for vertical vent termination The vertical roof termination should be sealed with a plumbing roof boot or equivalent flashing The inlet of the intake pipe and end of the exhaust vent must be terminated no less than 12 above the roof or snow accumulation level and 12 away from a vertical wall or other protrusion 2 Ifthe vent system is installed in an existing chimney make sure clearances shown in Figure 23 are maintained Hori zontal section before the termination elbow can be ex tended on the inlet air to provide necessary clearance A 12 Above roof or snow accumulation level B 8 Min 20 Maximum except in areas with extreme cold temperatures sustained below 0 F the 18 Min Vent Termination Shielding Under certain wind conditions some building materials may be af fected by flue products expelled in close proximity to unprotected surfaces Sealing or shielding of the exposed surfaces with a cor rosion resistant material such as aluminum sheeting may be re quired to prevent staining or deterioration The protective material should be attached and sealed ifnecessary to the building before attaching the vent terminal Multi Vent Termination Clearances When two 2
35. 5 000 amp 80 000 Btuh Furnaces Do not use field supplied couplings to extend the pipes NAHA002CV 35 amp 4 90 elbows with 2 PVC pipe or Airflow restriction will occur and the furnace pressure switch NAHAOO1CV 65 amp 4 90 elbows with 3 PVC pipe may cause intermittent operation 100 000 Btuh Furnace NAHAOO1CV 35 amp 4 90 elbows with 3 PVC pipe or Figure 33 Rain Cap to Vent Pipe Assembly NAHAOO1CV 65 amp 4 90 elbows with 3 PVC pipe amp Long Vent Kit See Tech Manual Drill clearance hole in rain 125 000 Btuh Furnace cap and pilot hole in vent pipe NAHAOO1CV 35 amp 4 90 elbows with 3 PVC pipe Do not include the field supplied 45 elbow in the total elbow count If more than four elbows are required reduce the length of both the inlet and the exhaust pipes five feet for each Stainless steel screw additional elbow used 25 22 02 Field supplied Elbows are DWV long radius type for Z and 3 vents NOTE Feet of pipe i hich i is the t eith eee audet aie IN ree WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in death or personal injury 5 Partially assemble the concentric vent termination kit Clean and cement the parts using the procedures for Join ing Pipe and Fittings section of the manual A Cement the Y Concentric fitting to the 4 diameter kit pipe See When using the alternate screw assembly method
36. 75F12C 080J16C 100J14C 100J20C 125L20C A Panel Top 1012866 1 1 1012867 1012868 Gasket Top Panel 1012603 1012604 1012605 Partition Blower 1172008 1172005 1172006 1172007 Housing Blower 1172885 1172969 Panel Blower Cutoff 721020013 721020008 Hanger Blower 1012328 Door Blower Tempstar only 1173015 Tempstar only 1173016 Tempstar only 1173082 Comfortmaker Keeprite only 1173009 Comfortmaker Keeprite only 1173010 Comfortmaker Keeprite only 1173072 Heil Arcoaire only 1173012 Heil Arcoaire only 1173013 Heil Arcoaire only 1173075 Bracket Door Filler 1172232 1172233 1172234 Door Front Tstar only 1013154 Tstar only 1013155 Tstar only 1013156 Cmaker Keeprite only 1013148 Cmaker Keeprite only 1013149 Cmaker Keeprite only 1013150 Heil Arco only 1013145 Heil Arco only 1013146 Heil Arco only 1013147 Clamp Capacitor 1170643 1014315 Transition Assembly 1172228 1172229 1172230 Gasket Blower 1014425 Board Insulating 1012418 1012419 1012420 Box Collector 1012244 1012245 1012246 Gasket Transition 1013263 1013080 1013083 1013084 Gasket Collector Box 1012594 1012595 1012596 Partition Frt Ht Exchanger 1012650 1012648 1012651 1012653 Gasket Attachment Plate 1012542 1012543 1012544 1012545 440 01 1021 02 Replacement Parts 9MPD Models 9MPDO50F12C1 9MPDO75F 12C1 9MPDO80J16C1 9MPD100J14C1 9MPD100J20C1 amp 9MPD125L20
37. 90 Single Stage N9MP1 amp Ne9MP2 Denotes Brands C H T FAN ASSISTED DIRECT OR ate gory IV Furnac NON DIRECT VENT GAS FURNACE SAFETY REQUIREMENTS Recognize safety information Thisis the safety alert yaa d When you see this symbol on the furnace and in instructions manuals be alertto the potential for personal injury Understand the signal words DANGER WARNING or CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards those that will result in severe personal injury or death WARNING signifies a hazard that could result in personal injury or death CAUTION is used to identify unsafe practices that could result in minor personal injury or product and property damage Note is used to highlight suggestions that will result in enhanced installation reliability or operation Installing and servicing heating equipment can be hazardous due to gas and electrical components Only trained and qualified personnel should install repair or service heating equipment Untrained service personnel can perform basic maintenance functions such as cleaning and replacing air filters All other operations must be performed by trained service personnel When working on heating equipment observe precautions in the literature on tags and on labels attached to or shipped with the unit and other safety precautions that may apply Follow all safety codes In the United States follow all safety codes includin
38. B c o Petr se a GAS KO RIGHT SIDE ME fe Pet IE S acta se ise A A E E IE z MO Ta Me Ta IE T pren o R A RT E E CD Ae o Ta Pa Pam P E E IE IE ES Ta TS E A EE E IE J mr aa ie ia C3 rn SS REAO coma IEA A e we E A EA A A T TS EA aT A E O EA E A d euss TS E A E A L IN amas AA Tam Te T Ta TS T E Joh Dentoes Brand e 440 01 1021 02 Knock Outs CAUTION CUT HAZARD Failure 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 furnaces Use a hammer and screwdriver to strike a sharp blow see Figure 4 directly to the knockout tie points or use a hammer in the upper left corner of the desired knockout Remove any burrs and sharp edges Figure 4 Hammer and Screwdriver Used for Knockout 25 40 06 NOTE If a knockout does not come out after two sharp blows pull and snip as needed to remove the knockout Installation Positions This furnace can be installed in an upflow horizontal either left or right or downflow airflow position DO NOT install this furnace on its back For the upflow position the return air ductwork can be at tached to either the left or right side panel and or the bottom For horiz
39. C1 Natural Gas Denotes Brand Replacement part supplied will be current active part For parts not listed consult place of purchase Key Description Paz EA IATA No Non Functional Number 050F12C 075F12C 080J16C 100J14C 100J20C 125L20C X Cover Junction Box 1012350 1 1 1 1 1 1 Box Junction 1172860 Manifold 1012276 1012277 1012278 1012279 Bottom Burner Box 1172847 1172849 1172850 Baffle Burner Box 1012338 1012339 1012340 Top Burner Box 1013702 1013703 1013704 Bracket Manifold Support 1012377 Bracket Burner Box Side 1012532 Bracket Control Mounting 1172845 Tube Sensor 1172240 1172238 1172241 Trap Drain Assembly 1171917 Sightglass Comfortmaker amp Heil 1013235 Tempstar Only 1013236 Gasket Trap 1013701 Bracket Trap 1171986 Gasket Trap Bracket 1171987 Tube Drain Coll Box 5g ID 1172245 Tube Drain Tee 12 1D 1171989 Tube Relief 1172012 Drain Vent 1014003 Tee Drain 1171915 Sightglass 1172768 PART NOT ILLUSTRATED Door Screws 1014488 Door Screws Grommets 1171990 Coupling Air Intake 1012284 Gasket Air Intake 1012583 Clamp Hose 3 4 1012976 Clamp Hose 5 g 1012975 Coupling Discharge 1002522 Clamp Hose 1013830 Grommet Vent 1012697 Bushing Strain Relief 1945287 Grommet Vinyl gas Inlet 1009535 Harness Wire 1172817 hb I ek aaa kk h d 1 ae A A M KM M A A b b A A d A O NY Ea AA Ea Ea d m d TD m m d d O A AM m m A A A A A A M KM M A A b b
40. Connect the Tee trap and the main drain line exiting the casing as shown in Figure 19 Note lt is recommended that all PVC piping and fitting connec tions be fit up and inspected before final cementing Both the ex ternal Trap and the external Tee Trap must be primed before operation Verify all condensate drain connections are securely clamped A coupling and clamps in loose part bag may be installed as shown for future servicing of the vent system Connecting Tee Trap to Condensate ee Trap and Main Drain Line gt EXHAUST J31NI de E E xa J o Ml Tee Trap Evaporator Coil Drain Line Optional Y Main N Drain Line Condensate Trap 25 24 85 The Tee Trap must be connected to the main condensate drain line as conceptually shown above Different installations may require slightly different orientations The following steps apply to all installations 2 The Tee Trap should be installed as close to the side or top of the furnace as practical Minimize the distance between the inducer and the Tee Trap as much as possible 3 Anopenteeis to be used atthe Tee Trap discharge The top end of the tee should be open to the atmosphere to elimi nate potent
41. E at ALTITUDE Oto 2001 to 3001 to 4001 to 5001 to 6001 to 7001 to BTU CU FT 2000 3000 4000 5000 6000 7000 8000 2500 0 os pp ps ws ore se E NOTE Propane data is based on 1 53 specific gravity For fuels with different specific gravity consult the National Fuel Gas Code ANSI Z223 1 2002 NFPA 54 2002 or National Standard Of Canada Natural Gas And Propane Installation Code CSA B149 1 05 NOTE The derating of these furnaces at 2 Natural Gas and 4 Propane Gas has been tested and design certified by CSA In Canada the input rating must be derated 5 Natural Gas and 10 Propane Gas for altitudes of 2 000 to 4 500 above sea level Use the 2001 to 3000 column in Table 8 Table 9 Table 10 and Table 11 The burner orifice part nos are as follows Orifice 47 1011378 Orifice 48 1113201 Orifice 41 1096942 Orifice 42 1011351 Orifice 49 1113202 Orifice 54 1011376 Orifice 43 1011377 Orifice 44 1011352 Orifice 55 1011354 Orifice 56 1011355 Orifice 45 1011353 Orifice 46 1011744 440 01 1021 02 NATURAL GAS MANIFOLD PRESSURE w c FOR THE 80 000 BTUH MODEL AND ALTERNATE INPUT MODELS MEAN ELEVATION FEET ABOVE SEA LEVEL 0 to 2001 to 3001 to 4001 to 5001 to 6001 to 7001 to 2000 3000 4000 5000 6000 7000 8000 Manifold Orifice Manifold Orifice Manifold J Orifice Manifold Orifice Manifold Orifice Manifold J Orifice Manifold Pressure No Pressure Pressure k Pressure No Pressure No Pressure No Pressu
42. HA002CV 35 amp 4 90 elbows with 2 PVC pipe amp Long Vent Kit See Tech Manual or NAHAO01CV 65 amp 4 90 elbows with 3 PVC pipe 100 000 Btuh Furnace NAHAO01CV 35 amp 4 90 elbows with 3 PVC pipe or A NAHAO01CV 65 amp 4 90 elbows with 3 PVC pipe amp 25 22 03 Long Vent Kit See Tech Manual REA A A NAHAOO1CV 35 amp 4 90 elbows with 3 PVC pipe NAHAO001CV 3871 3 41 214 NAROOZCV count Dimension will chanae accordinaly as dimension Dis If more than four elbows are required reduce the length of 9 gy both the inlet and the exhaust pipes five feet for each engthened or shortened E Dimension D may b length ned 18 G0 may also be 3 Elbows are DWY roda type for 2 and 3 vents shortened by cutting the pipes provided in the kit to 12 g yP minimum NOTE Feet of pipe is whichever pipe run is the longest either inlet or outlet side B lt gt PVC Intake Combustion Air If assembly needs to be extended to meet height or side wall thick Concentric Termination Kit ness requirement the two pipes supplied in the kit may be re laced by using the same diameter solid single no coupling Table 5 NAHA001CV amp NAHAO02CV Venting P 79 al IN 1 9 Table for 9MPD Models connections field supplied SDR 26 PVC ASTM D2241 pipes Do not extend dimension D more than 60 See Figure 32 50 000 7
43. J20C1 N9MP2050B12C1 N9MP2075B12C1 N9MP2080F16C1 N9MP2100F14C1 N9MP2100J20C1 amp N9MP2125J20C1 Natural Gas Replacement part supplied will be current active part For parts not listed consult place of purchase Description Part Functional Number Heat Exchanger Primary 1012847 1012851 1012855 1012856 1012859 Heat Exchanger Secondary 1013760 1013761 1013764 1013765 1013766 Motor Br 1 115 1 2 CCW 1172488 11115 1 2 CCW 1172487 11115 3 4 CCW 1172489 Mount Motor kit 1014824 1014823 1014822 Wheel Blower 1013011 1011420 Transformer 1172810 Capacitor 10Mfd 370V 1171729 7 5Mfd 370V 1171728 40Mfd 370V 1171982 Control 1172550 Switch Interlock 1171981 Switch Pressure 1013802 1013811 1013801 1013166 Blower Exhaust Jakel 1172823 1172824 Valve Gas 1172821 Flame Sensor 1172827 Igniter 1172533 Orifice Burner 42 Nat 1011351 44 Nat 1011352 Switch Limit Rollout 1013102 Burner Assembly 1172884 1172965 1172966 1172967 Switch Limit Main 34335001 34335002 1320361 1008445 1320367 See Table below for bellyband location on motor 100J20C1 125J20C1 440 01 1021 02 100F14C1 Replacement Parts NIMPT1 amp NIMP2 Models N9MP1050B12C1 N9MP1075B12C1 N9MP1080F16C1 N9MP1100F14C1 N9MP1100J20C1 amp N9MP1125J20C1 N9MP2050B12C1 N9MP2075B12C1 N9MP2080F16C1 N9MP2100F14C1 N9MP2100J20C1 amp N9MP2125J20C1 Natural Gas Replacem
44. S0J16 1 Denotes Brand Ran Low Ned L MedH Hi Speed Low ap Tap 1109 1527 1850 1109 1527 1850 o 1087 1482 1791 o 1087 1482 1791 7 1056 1426 1720 7 1056 1426 1720 S 1016 1382 1648 Es 1016 1382 1648 Y 2 Ms 35 970 1317 1575 5 970 1317 1575 as A 3 854 35 aS ce 0 7 aaa 763 1154 1401 ee La do 0 8 a 652 1043 1284 Z UU UU 0 9 Pa fat 905 1161 1 0 xes S 737 1028 NOTE 1 Data based on Bottom Only or One Side return 2 Data based on Both Sides or Bottom plus One Side 3 100J20 Reduce airflow by 5 if Bottom Only return 4 125J20 Reduce airflow by 5 if Bottom Only return Finer Size cm 14 X 25 1400 16 X 25 1600 CFM Cubic Feet per Minute airflow Filter required for each return air inlet Airflow performance includes 1 washable 600 FPM max filter media 20 X 25 2000 24 X 25 2500 Max CFM based on 600 FPM 440 01 1021 02 CIRCULATION AIR BLOWER DATA CFM E N9MP1100F 14 N9MP2100F 14 1 9MPD100J14 1 Exterrnal Static Pressure Inches of W C Speed Low Med L Med H Hi ap 0 1 700 912 1209 1550 7 5 0 2 660 884 1171 1492 S 0 3 616 843 1139 1434 gt 0 4 575 790 1088 1378 na 3 E 0 5 528 735 1040 1317 5T 0 6 472 677 979 1247 ke 0 7 ged 608 909 1161 0 8 528 827 1058 1 0 Les sen 624 778 N9MP 1100320 N9IMP2100320 9MPD100J 20 2 3 Denotes Brand 0 5
45. ST CE Et D E Flexible Tubing Connector 3115 OD Loose Parts Bag Relief Tube Extension Black Rubber 3 46 ID B Cut tp Fit Loose Parts Bag Drain Tube Coupling amp Clamps Optional Field Supplied Tee Cap and Clamp Tee Trap White PVC Open End loose parts bag Horizontal Left Thru Top See Figure 15 Disconnect the hoses from the Trap assembly and remove Trap and Trap mounting bracket from the blower compartment Using cover plate and gasket provided in the loose parts bag cover the hole from the burner compartment to the blower compartment and secure with screws Mount the Trap externally to the bottom side of the unit using the 2 screws provided in the location shown Cut the corrugated tube as shown in the illustration above Con nect the corrugated hose from the transition to the Trap Secure connections with clamps Remove the black 1 2 ID Drain Tube from the Drain Tee Install a yellow cap and clamp over the open drain port of the Drain Tee Connect the black 1 5 ID Drain Tube from the Vent Drain to the Trap Secure connections with clamps Connect the 3 46 ID relief tube to the middle port on the Trap If an extension is required use the 3 46 OD flexible tubing connector Black Rubber 11 ID amp Clamps Drain Tube
46. ST be installed with the air flow marking arrow pointed toward the vent pipe See Figure 20 Some installations require the vent fitting to be installed with a 5 to 10 downward slope See Figure 10 thru Figure 19 440 01 1021 02 Proper Sealing Procedure for Figure 20 Combustion Blower Vent Pipe Top Panel Exit y NOTE The 90 elbow is approved for use inside the furnace ONLY Rubber Coupling Vent Pipe 2 90 Elbow Vent Fitting amp Clamps Combustion Blower L Vent Extension Sal Pipe Side Panel Exit SIDE VIEW Rotate downward Tee La 5 to 10 NOTE Built in channel will be angled 5 to 10 also sored Ma Joining Pipe and Fittings FIRE HAZARD WARN N G Failure to do so could cause death personal injury and or property damage Observe all cautions and warnings printed on material containers Provide adequate ventilation and do NOT assemble near heat source or open flame Do NOT smoke while using solvent cements and avoid contact with skin or eyes This furnace is approved for venting with Schedule 40 PVC CPVC ABS Cellular Core pipe fittings and SDR 26 PVC NOTE All PVC CPVC ABS and Cellular Core pipe fittings sol vent cement primers and procedures MUST conform to American National Standard Institute and American Society for Testing and Materials ANSI ASTM standards PVC Ref ASTM D1785 D2241 D2466 D2665 amp D3311 ABS ASTM D2661 D1527 amp F 628 C
47. VAC humidifier is wired up to control Allow furnace to operate for 2 minutes before recording the AC amper age reading Set anticipator on thermostat to recorded value Optional Equipment All wiring from furnace to optional equipment MUST conform to lo cal codes or in the absence of local codes with the latest edition of The National Electric Code ANSI NFPA 70 and or The Canadian Electric Code CSA C22 1 Install wiring in accordance with manufacturer s instructions The wiring MUST have a minimum temperature rating of 105 C Humidifier Electronic Air Cleaner The furnace is wired for humidifier and or electronic air cleaner connection CAUTION REDUCED FURNACE LIFE HAZARD Failure to follow caution instructions may result in reduced furnace life Do NOT exceed 115V 1 0 amp maximum current load for both the EAC terminal and the HUM terminal combined HUMIDIFIER The HUM 115 is energized when the pressure switch closes on a call for heat The HUM is energized when the inducer is energized ELECTRONIC AIRCLEANER EAC is energized when there is a blower speed call except is NOT energized when blower operates in the hard wired continuous fan mode Furnace Control The furnace control is preset at the factory with a fixed blower ON delay of 30 seconds in the heating mode The blower OFF timingis preset at 140seconds If desired the fan OFF delay canberesetto obtain the longest delay times while still maintai
48. alve during any pressure testing of the gas supply system at test pressure equal to or less than 1 2 PSI 3 5 pa 4 Apply a commercial soap solution to all joints to test for leaks Correct any leaks indicated by bubbles 5 Correct even the smallest leak at once 6 Check for leaks at gas valve and orifice connections to the burner manifold while the furnace is operating WARNING ELECTRICAL SHOCK HAZARD Failure to turn off power could result in death or personal injury Turn OFF electrical power at fuse box or service panel before making any electrical connections and ensure a proper ground connection is made before connecting line voltage Power Supply Wiring The furnace MUST be electrically wired and grounded in accor dance with local codes or in the absence of local codes with the latest edition of The National Electric Code ANSI NFPA 70 and or The Canadian Electric Code CSA C22 1 The power supply to the furnace connections must be between 104 VAC and 127 VAC during furnace operation for acceptable performance Field wiring connections must be made inside the furnace connec tion box A suitable strain relief should be used at the point the wires exit the furnace casing Copper conductors shall be used Line voltage wires should conform to temperature limitation of 63 F 35 C rise and be sized 440 01 1021 02 for the unit maximum amps stated on the rating plate Add the full load amps for
49. am sm zarm mn EXAMPLE Determining Free Area Furnace 100 000 Furnace 100 000 Indoor Combustion Air Water Heater 30 000 Water Heater 30 000 Total Input 4 WARNING CARBON MONOXIDE POISONING HAZARD Failure to supply adequate combustion air could result in death or personal injury Most homes will require additional air from outdoors for combustion and ventilation A space with at least 50 cubic feet per 1 000 BTUH input rating or homes with tight construction may need outdoor air supplied through ducts to supplement air infiltration for proper combustion and ventilation of flue gases 130 000 4 000 Total Input 130 000 2 000 32 5 Sq In Vertical 65 Sq In Horizontal Standard and Known Air Infiltration Rate Methods NFPA amp AGA Indoor air is permitted for combustion and ventilation if the Stan dard or Known Air Infiltration Rate Method is used The Standard Method may be used if the space has no less vol ume than 50 cubic feet per 1 000 BTUH input rating for all gas ap pliances installed in the space The standard method permits indoor air to be used for combustion and ventilation air The Known Air Infiltration Rate Method shall be used if the in filtration rate is known to be less than 0 40 air changes per hour ACH and equal to or greater than 0 10 ACH Infiltration rates greater than 0 60 ACH shall not be used The minimum required volume of the space varies with the
50. amp 5 90 elbows with 3 PVC pipe amp Long Vent Kit See Tech Manual 125 000 Btuh Furnace 40 amp 5 90 elbows with 3 PVC pipe Elbows are DWV Long Radius Type for 2 and 3 vents If more than five elbows are required reduce the length of both the inlet and exhaust pipes 5 for each additional elbow used NOTE It is allowable to use larger diameter pipe and fitting than shown in the tables but not smaller diameters than shown For Concentric Termination Kit Venting table see Section 5 in this manual Vent Termination Clearances WARNING CARBON MONOXIDE POISONING Failure to properly vent this furnace could result in death or personal injury Inlet and outlet pipes may NOT be vented directly above each other 1 Determine termination locations based on clearances spe cified in following steps and as shown in Figure 8 Figure 9 Figure 21 through Figure 29 For Concentric Termination Kit clearances see Figure 30 thru Figure 34 in Section 5 in this manual 2 For Single Pipe Installation models N9MP1 or 9MPD refer to Figure 9 for vent termination clearances 3 For Direct Vent Installation models N9MP2 or 9MPD refer to Figure 8 for vent termination clearances Figure 8 Direct Vent Termination Clearance A VENT TERMINAL AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITED Clearance Description Canadian Installation 1 US Installation 2 Cl
51. an inlet install at least one 90 air turn between fan and inlet grille to reduce noise NOTE To further reduce noise install acoustical airturning vanes and or line the inside of duct with acoustical material Sizing Existing or new ductwork MUST be sized to handle the correct amount of airflow for either heating only or heating and air condi tioning Insulation 1 Insulate ductwork installed in attics or other areas exposed to outside temperatures with a minimum of 2 insulation and vapor barrier 2 Insulate ductwork inindoor unconditioned areas with a mini mum of 1 insulation with indoor type vapor barrier Filters A Filter must be used Filters are not supplied with these furnaces but can be purchased from dealer Use either filter type e Washable high velocity filters are based on a maximum air flow rating of 600 FPM e Disposable low velocity filters are based on a maximum air flow of 300 FPM when used with filter grille S See pages 51 amp 52 Circulating Air Blower Data for addi tional data NOTE Disposable low velocity filters may be replaced with wash able high velocity filter providing they meet the minimum size areas Washable high velocity filters can be replaced ONLY with 440 01 1021 02 same type and size Figure 43 Side Mounted Filter Rack 25 20 90 Filter Installation using Optional Filter Rack When installing or removing a bottom mounted filter slide
52. art Table 13 to determine the blower motor speed settings 2 Change the heat or cool blower motor speed by removing the motor lead from the Heat or Cool terminal and re place it with the desired motor speed lead from the Un used Motor Lead location Connect the wire previously removed from the Heat or Cool terminal to the vacated Unused Motor Lead terminal 3 If the same speed must be used for both heating and cool ing remove the undesired motor speed lead from the Heat or Cool terminal and connect that lead to the open terminal at Unused Motor Lead location Attach a jumper between the Heat and Cool terminals and the remaining motor speed lead Note For motors with 4 speed leads it willbe necessary to tape off the terminal of the motor speed lead removed from the Heat or Cool terminal with electrical tape since an open terminal will not be available at the Unused Motor Lead location Continuous Fan Operation using G Energizing the G terminal on the furnace control provides contin uous fan operation This is done by connecting the G terminal of the thermostat to the G terminal on the furnace control When the FAN switch is turned from auto to ON the fan will operate continu ously at HEAT speed EAC will be energized in this mode NOTE In heating the fan will turn off during furnace ignition and warm up then restart at heating speed Hard Wir
53. ating of all gas appliances in the space but not less than 100 in2 0 06 m2 Once opening shall commence within 12 300 mm of the ceiling and the second opening shall commence within 12 300 mm of the floor The minimum dimension of air openings shall be atleast 3 80 mm Combining spaces on different floor levels The volumes of spaces on different floor levels shall be considered communi cating spaces if connected by one or more permanent open ings in doors or floors having a free area of at least 2 2 1 000 Btuh 4 400 mm2 kW of total input rating of all gas ap pliances e Anattic or crawl space may be considered a space that freely communicates withthe outdoors provided there are adequate ventilation openings directly to outdoors Openings MUST re main open and NOT have any means of being closed off Ven tilation openings to outdoors MUST be at least 1 square inch of free area per 4 000 BTUH of total input rating for all gas ap pliances in the space e In spaces that use the Indoor Combustion Air Method in filtration should be adequate to provide air for combustion ventilation and dilution of flue gases However in buildings with unusually tight construction additional air MUST be pro vided using the methods described in section titled Outdoor Combustion Air Method e Unusually tight construction is defined as Construction with 1 Walls and ceilings exposed to the outdoors have a con tinuous sealed
54. bber Tee Trap White PVC loose parts bag On Some ee Models ONLY eos 1 ID amp Clamps Ti Loose Parts Bag Barbed Coupling 1 3 OD Loose Parts Bag T Drain Tube Black Rubber 1 ID amp Clamps WARNING Move Caps to top of trap Relief Tube Extension Black Rubber 376 ID Cut to Fit A Loose Parts Bag Horizontal Left Side Vent See Figure 16 Remove the Drain Tee from the Vent Drain if installed 9MPD models only Rotate the inducer 180 for a side vent after loosening the 4 induc er attachment screws Reinstall and retighten the inducer screws to 20 pounds torque Disconnect the hoses from the Trap assembly and remove Trap and Trap mounting bracket from the blower compartment Using cover plate and gasket provided in the loose parts bag cover the hole from the burner compartment to the blower compartment and secure with screws Mount the Trap externally to the bottom side of the unit using the 2 screws provided in the location shown Cut the corrugated tube as shown in the illustration above Con nect the corrugated hose from the transition to the Trap Secure connections with clamps Connect the black 1 5 ID Drain Tube from the Vent Drain to the Trap Ifan extensionis required use the black 1 2 OD flexible tub
55. cement part supplied will be current active part For parts not listed consult place of purchase Description Part Functional Number 050F12C 075F12C 080J16C 100J14C 100J20C 125L20C 1 Z S R S E Heat Exchanger Primary 1012850 1012854 1012858 1012862 Heat Exchanger Secondary 1013762 1013763 1013765 1013767 Motor Blower 1172488 1172487 1172489 Mount Motor kit 1014824 1014822 1014823 Wheel Blower 1013011 1011420 Transformer 1172810 Capacitor 7 5Mfd 370V 1171928 10Mfd 370V 1171929 40Mfd 370V 1171982 Control Fan Timer 1172550 Switch Interlock 1171981 Switch Pressure 1013802 1013812 1013166 Blower Exhaust 1172823 1172824 Valve Gas Nat 1172821 Flame Sensor 1172827 Igniter 1172553 Orifice Burner 42 Nat 1011351 44 Nat 1011352 Switch Limit Rollout 1013102 Burner Assembly 1172884 1172965 1172966 1172967 Switch Limit Main 1320366 34335002 1008445 1320367 See Table below for bellyband location on motor on Motor Aim 15 mo d mo em eB mm oe hb 100J14C1 100J20C1 125L20C1 440 01 1021 02 Replacement Parts 9MPD Models 9MPDO50F12C1 9MPDO75F 12C1 9MPDO080J16C1 9MPD100J14C1 9MPD100J20C1 amp 9MPD125L20C1 Natural Gas Denotes Brand Replacement part supplied will be current active part For parts not listed consult place of purchase Key Description NA es R No Non Functional Number 050F12C 0
56. ch Pressure Close WC Blower Switch Pressure Open WC Transition Switch Pressure Close C WC Transition Switch Pressure Open C WC Blower Data Type amp Size Motor Amps Rpm Motor Type H p Cap Mfd Volts Filter Type amp Size Permanent not supplied Cool Cap Tons 5 W C L ML MHI 8 Hi Gas Conversion Kits Nat to LP NAHAOO1LP 1172958 LP to Nat NAHAOO1NG 1172960 Order from Service Parts 1013802 2 2 2 0 1013803 2 0 18 11 8 10 850 PSC 7 51370 16x25x1 TIL 2 21 3 1013802 2 2 2 0 1013803 2 0 18 NAHAOO1LV 1013518 1 0 0 8 2 0 1 8 11 8 8 0 1050 PSC 7 51370 16x25x1 12 21 3 L P Nat VR 8205S SNAP Hot Surface 10 0 3 5 4155 4 42 Integrated 30 60 100 140 180 1013811 1 8 1 6 1013812 1 5 1 3 11 10 10 1050 PSC 10 370 16x25x1 2119 3 311 4 1013801 2 3 2 1 1013803 2 0 1 8 1013518 1 0 0 8 2 0 1 8 11 10 10 1050 PSC 10 370 16x25x1 NAHAOO1LV 111 2 3 31 1013802 2 2 2 0 1013803 2 0 1 8 NAHA001LV 1013518 1 0 0 8 2 0 1 8 NAHA003LV 1013165 0 7 0 6 1 4 1 2 11 10 13 900 PSC 40 370 16x25x1 3117 4 411 5 1013166 1 3 1 1 1 8 1 6 1013157 0 9 0 7 1 7 1 5 11 10 13 900 PSC 40 370 16x25x1 3117 4 411 5 440 01 1021 02 Manufacturers Number Mfr No See Rating Plate
57. ction to blower Gas Supply Pressure Gas supply pressure should be within minimum and maximum val ues listed on rating plate Pressures are usually set by gas suppli ers Manifold Gas Pressure Adjustment NOTE Make adjustment to manifold pressure with burners oper ating 1 Remove the burner compartment door 2 Remove the blower compartment door A jumper wire needs to be placed on furnace control Rto W Then replace blower compartment door 3 With gas OFF connect manometer to tapped opening on gas valve Use manometer with a O to 15 water column range 4 Turn gas ON and remove adjustment screw cover on gas valve Turn counterclockwise to decrease pressure and clockwise to increase 5 Remove manifold pressure adjustment screw cover on fur nace gas control valve Turn adjusting screw counterclock wise to decrease manifold pressure and clockwise to increase pressure NOTE Adjustment screw cover MUST be replaced on gas control valve before reading manifold pressure and operating furnace 6 Set manifold pressure to value as shown in Table 8 Table 9 Table 10 or Fable 11 7 Whenthe manifold pressure is properly set replace the ad justment screw cover on the gas control valve 8 Remove jumper wire from thermostat connection on the control board Remove manometer connection from man ifold pressure tap and replace plug in gas valve 9 Check for leaks at plug 10 Replace the burner compartment do
58. d design certified by CSA In Canada the input rating must be derated 5 Natural Gas and 10 Propane Gas for altitudes of 2 000 to 4 500 above sea level Use the 2001 to 3000 column in Table 8 Table 9 Table 10 and Table 11 General Derating Rules 1 These furnaces may be used at full input rating when installed at altitudes up to 2 000 When installed above 2 000 the input must be decreased 2 natural or 4 LP for each 1000 above sea level in the USA In Canada the input rating must be derated 5 natural or 10 LP for each 1000 above sea level See Table 10 or Table 11 for required high altitude input rate 2 For operation with natural gas at altitudes above 2 000 ori fice change and or manifold pressure adjustments may be required for the gas supplied First consult your local gas supplier thenreferto Table 8 for required pressure change and or orifice change for high altitudes 3 For operation with LP gas gas orifices MUST be changed and manifold pressure MUST be maintained as per Table 9 Orifices can be ordered through our distributor See Figure 39 High Altitude Input Rate Nameplate Sea Level Input Rate x Multiplier USA 20073000 um oo gt Elevation 0 86 Based on mid range of elevation 7001 8000 4 In cases where Table 8 or Table 9 is not applicable eg al ternate input rate application referto Table 10 or Table 11 for required high altitude input rate H
59. d to the top panel to the alternate air intake locations on either the left or right side panels of the furnace For downflow installation the air intake coupling and gasket must be installed to the alternate air intake location on either the left or right side panels Install the 3 hole plug from the furnace accesso ry bag and relocate to the open hole in the furnace panel Use four screws to seal the four 4 mounting holes in the top panel next to the hole plug Drill four 4 7 64 diameter holes in the casing using the air intake coupling as the template The air intake coupling is sized for 2 PVC pipe Install the combustion air pipe to the air intake coupling using RTV sealant to provide for future serviceability Vent Pipe Connection Install the vent pipe grommet to the furnace panel Locate the grommet in the furnace panel at a location directly away from the vent fitting on the combustion blower The grommet snaps into the 3 hole from the furnace panel NOTE Depending on the installa tion position the vent pipe grommet will be installed to the top pan el orto the alternate location on the side panels If needed remove the 3 hole plug from the loose parts bag and install in the open hole in the furnace panel See Figure 10 or Figure 19 Install the vent pipe to the rubber coupling the vent fitting or the PVC vent extension pipe Securely attach using the clamp or PVC cement as required Note The vent fitting MU
60. e Buildings with indoor pools e Furnaces installed in laundry rooms e Furnaces installed in hobby or craft rooms e Furnaces installed near chemical storage areas Permanent wave solutions for hair e Chlorinated waxes and cleaners e Chlorine based swimming pool chemicals e Water softening chemicals e De icing salts or chemicals e Carbon tetrachloride e Halogen type refrigerants e Cleaning solvents such as perchloroethylene e Printing inks paint removers varnishes etc e Hydrochloric acid e Sulfuric Acid Solvent cements and glues e Antistatic fabric softeners for clothes dryers e Masonry acid washing materials Vent and Combustion Air Piping Guidelines This furnace is approved for venting with Schedule 40 PVC CPVC ABS Cellular Core pipe fittings and SDR 26 PVC Applicable ASTM Standards for Vent Materials Cell pts PUR Core Fittings Soli ipe Pipe Pipe Cement D2468 ABS D1527 F628 amp D2661 D2235 D2466 PVC D1785 D2241 F891 amp F656 D2564 D2665 CPVC F441 F442 E F438 le F493 ABS to NOTE 1 In Canada all pipe fittings amp cements must conform to applicable CSA standards or to local codes having jurisdiction 2 Only use solvent cements that are marked for use with the specific venting material 3 ABS to PVC transition joints REQUIRE a special sol vent cement that meets the requirements of ASTM D3138 4 Refer to ASTM D2855 for general procedure to use for ceme
61. e maintained See Figure 19 for proper routing and installation of the overflow DO NOT trap the drain line in any other location than at the con densate drain trap supplied with the furnace A CAUTION FROZEN AND BURST WATER PIPE HAZARD Failure to do so may result in burst water pipes serious property damage If a condensate pump is installed a plugged condensate drain or a failed pump may cause the furnace to shut down Do not leave the home unattended during freezing weather without turning off water supply and draining water pipes or otherwise protecting against the risk of frozen pipes If possible DO NOT route the drain line where it may freeze The drain line must terminate at an inside drain to prevent freezing of the condensate and possible property damage 1 Acondensate sump pump MUST be used if required by lo cal codes or if no indoor floor drain is available The con densate pump must be approved for use with acidic condensate 2 A plugged condensate drain line or a failed condensate pump will allow condensate to spill If the furnace is installed where a condensate spill could cause damage it is recom mended that an auxiliary safety switch be installed to pre vent operation of the equipment in the event of pump failure or plugged drain line If used an auxiliary safety switch should be installed in the R circuit low voltage ONLY 3 If the auxiliary switch in the condensate pump is used the furnace
62. e used for 3 di ameter pipe systems The NAHA002CV kit can be used for 2 di ameter pipe system Refer to Table 5 or Table 6 for the correct pipe size for the furnace Both the combustion air inlet and the ex haust vent pipes must attach to the termination kit The termination kit must terminate outside the structure and must be installed per the instructions outlined below for vertical or horizontal termina tion Vertical termination is preferred Field supplied pipe and fit tings are required to complete the installation Kit Contents 3 Rain Cap or 2 Rain Cap 3 Diameter SDR 26 Pipe 191 Long or 4 Diameter SDR 26 Pipe 371l Long 2 Diameter SDR 26 Pipe 315 3 Long or 215 Diameter SDR 26 Pipe 24 Long 3 Y Concentric Fitting or 2 Y Concentric Fitting Nominal 3 or 4 Dia SDR 26 Pipe e 2 or 3 Dia 2 or 3 Dia Rain Cap VD Y Concentric Fitting OE Dia SDR 26 Pipe 25 22 03 Vertical amp Horizontal Termination 1 Determine the pipe diameters required for the installation from Table 5 or Table 6 and Figure 32 2 Determine the best location for the termination kit See Figure 31 for vertical termination or Figure 35 for horizon tal termination Roof termination is preferred since it is less susceptible to damage has reduced intake contaminants and less visible vent vapor For side wall termination con s
63. earance above grade veranda porch deck balcony or 12 30cm 12 30 cm anticipated snow level 15 cm 23 cm Clearance to a window or door that may be opened 6 15 cm for appliances lt 10 000 BTUH 3kW 12 30 6 15 cm for appliances lt 10 000 BTUH 3kW 9 23 cm cm for appliances gt 10 000 Btuh 3 kW and lt 100 000 Btuh l for appliances gt 10 000 Btuh 3 KW and lt 50 000 Btuh 15 30 kW 36 91 cm for appliances gt 100 000 Btuh 30 kW kW 12 30 cm for appliances gt 50 000 Btuh 15 kW Vertical clearance to a ventilated soffit located above the terminal within a horizontal distance of 2 61cm from the centerline of the terminal 3 91 cm within 15 4 5 m above the meter regulator 3 91 cm within 15 4 5 m above the meter regulator electrical meter or gas service regulator assembly assembly assembly Clearance to non mechanical air supply inlet to building or 6 15 cm for appliances lt 10 000 BTUH 3kW 9 23cm 6 15 cm for appliances lt 10 000 BTUH 3kW 9 23 cm the combustion air inlet to any other appliance for appliances gt 10 000 Btuh 3 kW and lt 100 000 Btuh 30 for appliances gt 10 000 Btuh 3 kW and lt 50 000 Btuh 15 kW and lt 50 000 Btuh 15 kW 12 30 cm for appliances kW 12 30 cm for appliances gt 50 000 Btuh 15 kW gt 50 000 Btuh 15 kW Clearance to a mechanical air supply inlet 6 1 83 m 3 91 cm above if within 10 3m
64. ed Continuous Fan Operation A terminal is provided on the furnace control board located in the circulating blower compartment for operation of the continuous fan option This connection is intended for the low speed motor tap and has a lower contact rating 8 amps than the heat and cool taps When the low speed blower lead is connected to this termi nal this will provide low speed blower operation whenever the oth er two speeds Heat or Cool are not energized Thoroughly check the system after modification to ensure the proper operation of the circulating air blower in all modes of opera tion Separate speed selections for Heat Cool and Continuous Fan Connect low speed lead from circulating motor to the Cont ter 10 Furnace Maintenance de WARNING FIRE EXPLOSION OR CARBON MONOXIDE HAZARDS Failure to have the furnace inspected and maintained could result in fire explosion death or personal injury It is recommended that the furnace be inspected and serviced on an annual basis before the heating season by a qualified service technician minal at the furnace control The appropriate motor leads should already be connected to the Heat and Cool terminals Heating and Continuous Blower Speed the Same If it is necessary to operate the heating speed and continuous blower speed using the same blower speed connect a jumper be tween the Heat and Cont terminals on the furnace control Note The
65. ed for one 90 elbow The elbow or el bows used for vent termination outside the structure ARE counted including elbows needed to bring termination above expected snow levels The elbow inside the furnace on the 9MPD IS NOT included in the count Table 3 Pipe Diameter Table N9MP1 amp 9MPD Models 50 000 75 000 amp 80 000 Btuh Furnaces 40 amp 5 90 elbows with 2 PVC pipe or 70 amp 5 90 elbows with 3 PVC pipe 100 000 Btuh Furnace 40 amp 5 90 elbows with 3 PVC pipe or 70 amp 5 90 elbows with 3 PVC pipe amp Long Vent Kit See Tech Manual 125 000 Btuh Furnace 40 amp 5 90 elbows with 3 PVC pipe Elbows are DWV Long Radius Type for 2 and 3 vents If more than five elbows are required reduce the length of both the inlet and exhaust pipes 5 for each additional elbow used NOTE It is allowable to use larger diameter pipe and fitting than shown in the tables but not smaller diameters than shown 440 01 1021 02 Pipe Diameter Table een N9MP2 Models 50 000 amp 80 000 Btuh Furnaces 40 amp 5 90 elbows with 2 PVC pipe or 70 amp 5 90 elbows with 3 PVC pipe 75 000 Btuh Furnace 25 amp 3 90 elbows with 2 PVC pipe or 40 amp 5 90 elbows with 2 PVC pipe amp Long Vent Kit See Tech Manual or 70 amp 5 90 elbows with 3 PVC pipe 100 000 Btuh Furnace 40 amp 5 90 elbows with 3 PVC pipe or 70
66. ellular Core F 891 PVC Primer and Solvent Cement Ref ASTM D2564 Procedure for Cementing Joints Ref ASTM D2855 Procedure for PVC to ABS transition Ref ASTM D3138 NOTE In order to create a seal that allows future removal of pipe RTV sealant MUST be used on the inlet pipe where it joins to the Pipe and Fittings 440 01 1021 02 furnace PVC CPVC ABS and Cellular Core pipe and cement may be used on all other joints WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in death or personal injury Do NOT use solvent cement that has become curdled lumpy or thickened and do NOT thin Observe precautions printed on containers For applications below 32 F use only low temperature type solvent cement Poor joints may lead to disconnected or leaking vent pipe joints allowing carbon monoxide to enter the living space 1 Cut pipe end square remove ragged edges and burrs Chamfer end of pipe then clean fitting socket and pipe joint of all dirt grease or moisture NOTE Stir the solvent cement frequently while using Use a natu ral bristle brush or the dauber supplied with the cement The prop er brush size is one inch 2 After checking pipe and socket for proper fit wipe socket and pipe with cleaner primer Apply a liberal coat of primer to inside surface of socket and outside of pipe Do NOT al low primer to dry before applying cement 3 Applyathin coat of c
67. ement evenly in the socket Quickly ap ply a heavy coat of cement to the pipe end and insert pipe into fittings with a slight twisting movement until it bottoms out NOTE Cement MUST be fluid while inserting pipe If NOT recoat pipe 4 Hold the pipe in the fitting for 30 seconds to prevent the ta pered socket from pushing the pipe out of the fitting 5 Wipe all excess cement from the joint with a rag Allow 15 minutes before handling Cure time varies according to fit temperature and humidity Connecting Vent Pipes and Termination NOTE Combustion air intake and vent MUST terminate in the same atmospheric pressure zone lf installation is in a cold climate sustained temperatures below 0 F increase the minimum dis tance between vent pipe and air intake from 8 to 18 WARNING CARBON MONOXIDE POISONING HAZARD Failure to properly vent this furnace could result in death or personal injury Maintain a minimum of 36 between combustion air inlet and clothes dryer vent Terminate the combustion air intake as far as possible from any air conditioner heat pump swimming pool swimming pool pumping chlorinator or filtration unit 1 Install all couplings nipples and elbows using proper proce dures for Joining Pipe and Fittings and maintain spacing between vent and combustion air piping as indicated in Figure 21 through Figure 29 i Sidewall Termination 12 or More Figure 21 Above Snow Level or Grade Level
68. ent part supplied will be current active part For parts not listed consult place of purchase Description pat L NI N9MP2 TEO 050B 0758 osor 100F 10 125 050B 075B 080F 100F 100 125J on tuncuona Number 42c 12c 160 14c 200 200 120 12c 16c 1c 200 20c 1 1 A a z S E S S z z 1 1 Panel Top 1013507 1013508 1013509 1012957 1012958 1012959 Gasket Top Panel 1012602 1012603 1012604 Partition Blower 1171983 1171984 1171985 1172004 1172005 1172006 Housing Blower 1172885 1172969 Panel Blower Cutoff 721020013 721020008 Hanger Blower 1012328 Door Blower 1172992 1172994 1172996 1172991 1172993 1172995 Bracket Door Filler 1172231 1172232 1172233 Door Front 1013789 1013790 1013791 1013210 1013211 1013212 Strap Capacitor 1170643 1014315 Transition Assembly 1172227 1172228 1172229 Gasket Blower 1014425 Board Insulating 1012417 1012418 1012419 Box Collector 1012128 1012244 1012245 Gasket Transition 1013079 1013080 1013083 Gasket Collector Box 1012593 1012594 1012595 Partition Front Ht Exchanger 1012646 1012647 1012649 1012651 1012652 440 01 1021 02 Replacement Parts NIMPT1 amp NIMP2 Models N9MP1050B12C1 N9MP1075B12C1 N9MP1080F16C1 N9MP1100F14C1 N9MP1100J20C1 amp N9MP1125J20C1 N9MP2050B12C1 N9MP2075B12C1 N9MP2080F16C1 N9MP2100F14C1 N9MP2100J20C1 amp N9MP2125J20C1 Natural Gas Replacement
69. erials used must be acceptable to the local code officials having jurisdiction 440 01 1021 02 Figure 11 Upflow Installations Vent thru Left Side Plastic Cap Yellow or black On Some Models 2 PVC Coupling ai Coupling amp Clamps Optional Vent Drain Either The PVC amp Clamps Drain Tee or a field supplied 2 PVC Tee Single Pressure Switch mb EXHAUST Dual Pressure Switch Detail N ID Rubber Tube 16 ee T Tee Trap White PVC loose parts bag Drain Tube Black Rubber 1 ID amp Clamps Drain Tube Drain Connector Black PVC Corrugated 314 PVC X 1 3 CPVC 5 4 ID amp Clamps Loose parts bag SIDE VIEW Z Rotate downward 5 to 10 a Mi Casing Grommet ar ji ay e Black Rubber De 5 9 ID A y G e Loose parts bag H gah o NOTE Built in channel will be angled 5 to 10 also Drain Line Vent Tee 3 4 PVC or 12 CPVC Field supplied 25 24 81 Upflow Installations Vent thru Left Side See Figure 11 Remove Drain Tee from inducer discharge and remove black Cut the black Drain Tube g ID in loose
70. et from the blower compartment Using cover plate and gasket provided in the loose parts bag cover the hole from the burner compartment to the blower compartment and secure with screws Mount the Trap externally to the bottom side of the unit using the 2 screws provided in the location shown Cut the corrugated tube as shown in the illustration above Con nect the corrugated hose from the transition to the Trap Secure connections with clamps Connect the black 1 2 ID Drain Tube from the Vent Drain to the Trap If an extension is required use the 1 2 OD barbed coupling and the black 1 2 ID Drain Tube in the loose parts bag Cut tube to length Secure connections with clamps Connect the 3 46 ID relief tube to the middle port on the Trap If an extension is required use the clear 3 46 OD splice connector and the black 3 46 ID relief tube in the loose parts bag Cut tube to length 440 01 1021 02 Drain Tube Black Rubber 11 ID amp Clamps Barbed Coupling 12 0D Loose Parts Bag 25 24 84c Cut an appropriate length of 2 PVC pipe fittings and extension pipe long enough to exit the cabinet and connect the vent drain to either s Astandard field supplied 2 PVC tee N9MP1 models or A 2 PVC coupling fastened onto the Drain Tee 9MPD models Install Tee Trap into bottom section of Tee Important The pipe to the Tee Trap must be level or sloping to wards the Tee Trap
71. g the current edition National Fuel Gas Code NFGC ANSI 2223 1 2002 NFPA No 54 2002 In Canada refer to the current edition of the National Standard of Canada Natural Gas and Propane Installation Code NSCNGPIC CSA B149 1 05 Wear safety glasses and work gloves Have fire extinguisher available during start up and adjustment procedures and service calls These instructions cover minimum requirements and conform to existing national standards and safety codes Insomeinstances these instructions exceed certain local codes and ordinances especially those that may not have kept up with changing residential construction practices We require these instructions as a minimum for a safe installation INSTALLER Affix these instructions RATING on or adjacent to the furnace CERTIFIED G CONSUMER Retain these CERTIFIED i S instructions for future reference International Comfort Products LLC Lewisburg TN 37091 U S A Table of Contents 1 Safe Installation Requirements 7 Ductwork and Filter 2 Installation 8 Checks and Adjustments 3 Combustion amp Ventilation Air 9 Furnace Maintenance 4 Vent amp Combustion Air Piping 10 Sequence of Operation amp Diagnostics 5 Gas Supply and Piping 11 Concentric Vent Termination 6 Electrical Wiring CARBON MONOXIDE POISONING AND FIRE ELECTRIC SHOCK HAZARD HAZARD Failure to follow safety Failure to follow safety warnings exactly could warnings exactly could result result in serious in
72. gas service regulator assembly assembly assembly Clearance to non mechanical air supply inlet to building or 6 15 cm for appliances lt 10 000 BTUH 3kW 12 30 4 1 2 m below or to the side of opening 1 30 cm above the combustion air inlet to any other appliance cm for appliances gt 10 000 Btuh 3 kW and lt 100 000 Btuh opening 30 kW 36 91 cm for appliances gt 100 000 Btuh 30 kW Clearance to a mechanical air supply inlet 6 1 83 m 3 Clearance under a veranda porch deck or balcony 12 30 cm bg 3 xz 91 cm above if within 10 3m horizontally Clearance to each side of the centerline extended above or below vent terminal of the furnace to a dryer or water heater vent or other appliance s direct vent intake or exhaust Clearance from a plumbing vent stack 3 91 cm 91 cm A Clearance above a paved sidewalk or paved driveway located 7 2 13 m 7 2 13 m on public property 1 In accordance with the current CSA B149 1 Natural Gas and Propane Installation Code 2 In accordance with the current ANS 7223 1 NFPA 54 National Fuel Gas Code 18 46 cm above roof surface zZ S J S Permitted only if veranda porch deck or balcony is fully open on a minimum of two sides beneath the floor For clearances not specified in ANS 2223 1 NFPA 54 or CSA B149 1 clearances shall be in accordance with local installation codes and the requirements of the gas supplier a
73. h OND A mo mo md mo md md ds Y es as A ON B By A A O A wk 7 ek a 6 e ne L PR R a h TH TH mo md THH ds Y es ss kk d k d d B M B Bw ek eh eh ak Rd A 440 01 1021 02 Replacement Parts NIMPT1 amp NIMP2 Models N9MP1050B12C1 N9MP1075B12C1 N9MP1080F16C1 N9MP1100F14C1 N9MP1100J20C1 amp N9MP1125J20C1 N9MP2050B12C1 N9MP2075B12C1 N9MP2080F16C1 N9MP2100F14C1 N9MP2100J20C1 amp N9MP2125J20C1 Natural Gas Replacement part supplied will be current active part For parts not listed consult place of purchase Description eS aaa Tep Ts TT Tar e ome PETES SS le ele ele le le 12C 12C 16C 14C 20C 20C 12C 12C 16C 14C 20C 20C PART NOT ILLUSTRATED Tube 1 ID Elbow 1171992 Tubeing g ID Drain 1171994 Connector 3 4 X 1 1171995 Plate Cover Trap 1171999 Gasket Trap Bracket 1171987 Elbow 12 CPVC Street 1171996 Grommet Casing 1171997 Tube Releif Ext 1172239 Connector Releif Tube 1171998 Gasket Cover Plate 1172000 Cap Drain Tee 1171916 Clamp Tee Cap 1172002 Coupling Air Intake 1012284 Gasket Air Intake 1012583 Gasket Trap Bracket 1171987 Grommet Vinyl Gas Inlet 1009535 Bushing Strain Relief 1945287 Installation Manual 44001102102 User s Manual 44102201100 440 01 1021 02 Replacement Parts 9MPD Models 9MPDO50F12C1 9MPDO75F 12C1 9MPDO080J16C1 9MPD100J14C1 9MPD100J20C1 amp 9MPD125L20C1 Natural Gas Denotes Brand Repla
74. he following steps shall be followed for each appliance connected to the venting system being placed into operation while all other appliances connected to the venting system are not in operation 1 Seal any unused openings in the venting system 2 Inspect the venting system for proper size and horizontal pitch as required in the National Fuel Gas Code ANSI 2223 1 NFPA 54 or CSA B149 1 Natural Gas and Propane Installation Code and these instructions Deter mine that there is no blockage or restriction leakage corrosion and other deficiencies which could cause an unsafe condition As far as practical close all building doors and windows and all doors between the space in which the appliance s connected to the venting system are located and other spaces of the building Close fireplace dampers 5 Turn on clothes dryers and any appliance not connected to the venting system Turn on any exhaust fans such as range hoods and bathroom exhausts so they are operating at maximum speed Do not operate a summer exhaust fan Follow the lighting instructions Place the appliance being inspected into operation Adjust the thermostat so appliance is operating continuously Test for spillage from draft hood equipped appliances at the draft hood relief opening after 5 minutes of main burner operation Use the flame of a match or candle Figure 7 8 If improper venting is observed during any of the above tests the venting s
75. horizontally Clearance under a veranda porch deck or balcony 12 30 cm K 2 L 1 Clearance to each side of the centerline extended above or 12 30 cm 2 30 cm below vent terminal of the furnace to a dryer or water heater vent or other appliance s direct vent intake or exhaust Clearance from a plumbing vent stack 3 91 cm 3 91 cm L L Clearance above a paved sidewalk or paved driveway located 7 2 13 m T 2 13 m on public property 1 In accordance with the current CSA B149 1 Natural Gas and Propane Installation Code 2 In accordance with the current ANSI Z223 1 NFPA 54 National Fuel Gas Code 18 46 cm above roof surface En J cc Permitted only if veranda porch deck or balcony is fully open on a minimum of two sides beneath the floor For clearances not specified in ANSI Z223 1 NFPA 54 or CSA B149 1 clearances shall be in accordance with local installation codes and the requirements of the gas supplier and the manufacture s installatio instructions A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings Notes 1 The vent for this appliance shall not terminate a Over public walkways or b Near soffit vents or crawl space vents or other areas where condensate or vapor could create a nusiance or hazard or property damage or c Where condensate vapor could cause damage or could be detrimental to the
76. ial air lock problems 4 The drain line from the Tee Trap is to be connected to the furnace condensate trap drain line as shown above 5 Condensate drain lines from a cooling coil may be con nected downstream of the connection point of the Tee Trap and Furnace Condensate Trap Important Prime both traps with water before operation Failure to prime the traps may result in discharge of flue gases from the condensate drain line and open tee for a period of time and may result in temporary lockout of the furnace upon start up Main drain line construction is left to the discretion of the installer lt may be made of either ridged pipe or flexible tube Tube ID should NOT be less than 1 5 Connecting Vent and Combustion Air Piping a WARNING CARBON MONOXIDE POISONING HAZARD Failure to properly seal vent piping could result in death or personal injury Cement or mechanically seal all joints fittings etc to prevent leakage of flue gases Refer to Figure 10 through Figure 18 that corresponds to the installation position of the furnace for the application Preassemble the vent and combustion air piping from the furnace to the vent termination Do not cement the pipe joints until the pipe preassembly process is complete Combustion Air Pipe Connection Dual Certified or Direct Vent Install the air intake coupling and gasket to the furnace with the four 4 screws Note The airintake coupling and gasket can be installe
77. ideration should be given to 1 possible damage from the vapors to plants shrubs other equipment and building ma terials 2 possible damage to the terminal from foreign ob jects 3 wind effects that may cause recirculation of flue products debris or light snow and 4 visible vent vapor Figure 31 Concentric Vent Roof Installation Vent Maintain 12 min clearance above highest anticipated snow level Max of 24 above roof Combustion Air Roof Boot Flashing Field Supplied aZ ao poy Support Field Supplied 45 Elbow ac Field Supplied A Pecans H Air LD O Note aS TRAN 25 22 02 Support must be field installed to secure termination kit to structure 3 Cut one 5 diameter hole through the structure for the NAHA001CV Kit or one 4 diameter hole for the NAHAOO02CV Kit 4 Dimension D may be lengthened to 60 max or shortened by cutting the pipes to 12 min Dimension A will change ac cording to D dimension See Figure 32 440 01 1021 02 Fiqure 32 Concentric Vent Dimensional Concentric Termination Kit 9 Drawing NAHA001CV amp NAHA002CV Venting Table for NSMP2 Models B PVC Vent Exhaust 50 000 amp 80 000 Btuh Furnaces NAHA002CV 35 amp 4 90 elbows with 2 PVC pipe or NAHAO01CV 65 amp 4 90 elbows with 3 PVC pipe 75 000 Btuh Furnace NAHAD02CV 20 amp 2 90 elbows with 2 PVC pipe or NA
78. igh Altitude Air Pressure Switch Altitudes over 4 000 may require a different air pressure switch than the one installed at the factory Check parts list for pressure switch and consult your distributor for part number and availability 440 01 1021 02 In Canada provincial codes may govern installation of switch Check with governing authorities Changing Orifices for High Altitude A WARNING ELECTRICAL SHOCK FIRE OR EXPLOSION HAZARD Failure to properly install orifices could result in death personal injury and or property damage Turn OFF electric power at disconnect and gas supply at manual valve in gas line when installing orifices Installation of orifices requires a qualified service technician NOTE Main burner orifices can be changed for high altitudes 1 Disconnect gas line from gas valve 2 Remove manifold from furnace 3 Remove the orifices from the manifold and replace them with properly sized orifices 4 Tighten orifices so it is seated and gas tight See Figure 39 5 Reinstall manifold Ensure burners do NOT bind on new ori fices Measure from face of orifice to the back side of the manifold Natural Gas Input Rating Check NOTE The gas meter can be used to measure input to furnace Rating is based on a natural gas BTU content of 1 000 BTU s per cubic meter Check with gas supplier for actual BTU content 1 Make sure burner compartment door is in place bef
79. ing vent di ameter increaser fittings must have increaser fittings installed in vertical portion of the vent Condensate will be trapped in the vent if the vent diameter is increased prior to having an elbow turned upward This could cause nuisance tripping of the pressure switch Combustion Air and Vent Piping Insulation Guidelines NOTE Use closed cell neoprene insulation or equivalent If Fiber glass or equivalent insulation is used it must have a vapor barrier Use R values of 7 upto 10 R 11 if exposure exceeds 10 If Fiber glass insulation is used exterior to the structure the pipe MUST be boxed in and sealed against moisture T When the vent or combustion air pipe height above the roof exceeds 30 or if an exterior vertical riser is used on a hori zontal vent to get above snow levels the exterior portion MUST be insulated 2 When combustion air inlet piping is installed above a sus pended ceiling the pipe MUST be insulated with moisture resistant insulation such as Armaflex or other equivalent type of insulation 3 Insulate combustion air inlet piping when run in warm hu mid spaces Sizing Combustion Air and Vent Pipe Consult Table 3 or Table 4 to select the proper diameter exhaust and combustion air piping Exhaust and combustion air piping is sized for each furnace Btuh size based on total lineal vent length on inlet or outlet side and number of 90 elbows required Two 45 elbows can be substitut
80. istance in the vent system If DWV el bows cannot be used use two 45 elbows when possible On horizontal runs the elbows can be slightly misaligned to provide the correct slope 10 All horizontal pipe runs MUST be supported at least every five feet with galvanized strap or other rust resistant materi al NO sags or dips are permitted 11 All vertical pipe runs MUST be supported every six feet where accessible 12 The minimum pipe run length is 2 13 The piping can be run in the same chase or adjacent to sup ply or vent pipe for water supply or waste plumbing It can also be run in the same chase with a vent from another 90 furnace NOTE In NO case can the piping be run in a chase where temperatures can exceed 140 F or where radiated heat from adjacent surfaces would exceed 140 F 14 The vent outlet MUST be installed to terminate in the same atmospheric pressure zone as the combustion air inlet 15 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 e No other gas fired appliance or fireplace solid fuel is vented into the chimney The top of the chimney MUST be sealed flush or crowned up to Seal against rain or melting snow so ONLY the piping protrudes e The termination clearances shown in Figure 8 amp Figure 9 are maintained 440 01 1021 02 16 Furnace applications with vertical vents requir
81. jury death and or property in serious injury and or death damage Turn Off All Power Before This furnace is not designed for use in mobile Servicing homes trailers or recreational vehicles Printed in U S A 11 28 2005 440 01 1021 02 START UP CHECK SHEET For 90 Furnace Keep this page for future reference Dealer Name Address City State Province Zip or Postal Code Phone Owner Name Address City State Province Zip or Postal Code Model Number Serial Number Natural E LP E Type of Gas Which blower speed tap is used Heating Cooling Temperature of Supply Air CF or C Temperature of Return Air F or C Rise Supply Temp Return Temp F or C Filter Type and Size Fan Time ON Setting Fan Time OFF Setting Dealer Comments Business Card Here Manual Gas Shut Off Upstream of Furnace Drip Leg YES d NO d Condensate Drain Connected YES J NO J Condensate Drain Trapped YES d NO J Transition Pressure switch hose relocated for U D H Application YES all No Lud Blower Speed Checked YES J NO J All Electrical Connections Tight YES d NO E Gas Valve turned ON YES d NO d Measured Line Pressure When Firing Unit Calculated Firing Rate See Checks and Adjustments Sec tion Temperature Rise supply return temperature F Measured Manifold Gas Pressure Static Pressure Ducts Supply Air Return
82. k 1 2 ID elbow tube and a suitable section of a 1 7 ID drain tube to make connection from the vent drain to the trap Se cure all connections with clamps 440 01 1021 02 Install the vent pipe grommet into the casing Cut an appropriate length of 2 PVC pipe long enough to exit the cabinet and connect the vent drain to either s Astandard field supplied 2 PVC tee N9MP1 models or e A 2 PVC coupling fastened onto the Drain Tee 9MPD models Install Tee Trap into bottom section of Tee Connect the Tee trap and the main drain line exiting the casing as shown in Figure 19 Note It is recommended that all PVC piping and fitting connec tions be fit up and inspected before final cementing Both the ex ternal Trap and the external Tee Trap must be primed before operation Verify all condensate drain connections are securely clamped A coupling and clamps in loose part bag may be installed as shown for future servicing of the vent system Figure 15 Horizontal Left Thru Top Vent Drain amp Clamps Plastic Caps Yellow or black Op SA Single Pressure Switch Detail Trap Connection Clamp ears Pointed OUT Alternate Orienation 4 Dual Pressure Switch Preassemble amp insert into furnace Relief Tube Black Rubber 3 46 ID EXHAU
83. l the vent pipes as short as practical See Gas Vent Installation section 4 DoNOTinstall furnace directly on carpeting tile or other com bustible material other than wood flooring 5 Maintain clearance for fire safety and servicing A front clear ance of 30 is minimum for access to the burner controls and filter See clearance requirements in Figure 3 6 Use a raised base if the floor is damp or wet at times 7 Residential garage installations require e Burners and ignition sources installed at least 18 457 mm above the floor Furnace must be located or physically protected from pos sible damage by a vehicle 8 Ifthe furnace is to be suspended from the floor joists in a base ment or a crawl space or the rafters in an attic itis necessary to use steel pipe straps or an angle iron frame to attach the furnace These straps should be attached to the furnace with sheet metal screws and to the rafters or joists with bolts The preferred method is to use an angle iron frame bolted to the rafters or joists 9 Local codes may require a drain pan under the entire furnace and condensate trap when the furnace is installed in attic ap plication This furnace may be used for construction heat provided that all the following conditions are met e The furnace is permanently installed with all electrical wir ing piping venting and ducting installed according to these installation instructions A return air duct is p
84. ll be pulled into the com bustion blower The furnace may cycle on the pressure switch con nected to the plastic transition box due to condensate buildup After the trap is primed the condensate will start draining from the furnace The combustion blower will clear out any remaining con densate in the blower housing through the vent fitting downstream of the blower Note that the condensate trap can also be primed by pouring water into the 1 7 drain hose Remove the gt ID drain hose from either the gutter or the white PVC Tee Trap Using a fun nel pour eight 8 ounces of water into 1 2 ID drain hose Water will flow through the drain hose and into the condensate drain trap This will prime both the vent and the transition sides ofthe trap Re connect the 1 5 ID drain hose to the original component either the gutter or the PVC Tee Trap The condensate drain trap supplied with the furnace MUST be used The drain connection on the condensate drain trap is sized for 3 4 PVC or CPVC pipe however alternate 1 7 CPVC nominal 5 3 O D or vinyl tubing with a minimum inner diameter 1 D of 5 3 may also be used as allowed by local codes Alternate drain pipes and hoses may be used as allowed by local codes The drain line must maintain a 1 4 per foot downward slope toward the drain 1 4 per foot is recommended Installation of an overflow line is recommended when the 1 4 per foot slope to the conden sate drain cannot b
85. llout Switch F Limit Control Setting F Standard Pressure Sw Part No Blower Switch Pressure Close WC Blower Switch Pressure Open C WC Transition Switch Pressure Close WC Transition Switch Pressure Open C WC High Altitude Pressure Sw Part No Blower Switch Pressure Close WC Blower Switch Pressure Open WC Transition Switch Pressure Close C WC Transition Switch Pressure Open C WC Long Vent Kit Part No Pressure Switch Part No Blower Switch Pressure Close WC Blower Switch Pressure Open C WC Transition Switch Pressure Close WC Transition Switch Pressure Open C WC High Altitude Long Vent Kit Part No Pressure Switch Part No Blower Switch Pressure Close WC Blower Switch Pressure Open C WC Transition Switch Pressure Close C WC Transition Switch Pressure Open WC Blower Data Type amp Size Motor Amps Rpm Motor Type H p Cap Mfd Volts Filter Type amp Size Permanent not supplied Cool Cap Tons 5 W C L ML MHI 8 Hi Gas Conversion Kits NattoLP NAHAOO1LP 1172958 LP to Nat NAHAOOING 1172960 Order from Service Parts 12 9 1013802 2 2 2 0 1013803 2 0 18 11 8 10 850 PSC 7 5370 16x25x1 111 2 2119 3 10 1 1013802 2 2 2 0 1013803 2 0 1 8 NAHA002LV 1013515 1 0 0 8 17 15 11 10 8 0 1050 PSC 7 5 370 16x25x1 11 2 21h 3 12 9 LP 10 0 4155
86. may shut down due to a blocked condensate line or failed pump To prevent frozen water pipes see the Frozen Water Pipe Hazard section on Page 4 of this manual Condensate Drain Trap Freeze Protection Special precautions MUST be made if installing furnace in an area which may drop below freezing This can cause improper opera tion or damage to the equipment If the the furnace environment has the potential of freezing the drain trap and drain line must be protected Use 3 to 6 watt per foot at 115 volt 40 F self regulating shielded and waterproof heat tape Wrap the drain trap and drain line with the heat tape and secure with the ties Follow the heat tape manufacturer s recommendations 440 01 1021 02 Figure 10 Upflow Installations Top Vent On Some Models ONLY Single Pressure Switch gt Plastic Caps 2 E Yellow or black Coupling amp Clamps Optional Vent Drain amp Clamps Dual Pressure Switch Detail Drain Tee EN G L Drain Tube Black Rubber A 1 ID amp Clamps Drain Tube Corrugated 5 3 ID amp Clamps 7 gt gt EXHAUST TD Relief Tube Black Rubber 316 ID Street Elbow Drain Connector Black PVC 3 4 PVC X 1 2 CPVC Loose parts bag Ca
87. me your furnace will be ready to start as it is not necessary to drain the antifreeze from the furnace Typical Upflow Installation Aluminum or non rusting shield recommended See Vent Termination Shielding for dimensions Coupling on ends of exhaust pipe Total pipe amp coupling out side structure 8 8 Min 20 Max in same atmospheric zone Inlet Pipe not used on Single lt Pipe model nl j Vent Pipes MUST be supported Horizontally and Vertically 8 Min a 20 Mo in same atmospheric zone DISCHARGE AIR Increase minimum from 8 to 18 for cold climates sustained temperatures below 0 F 25 23 33 440 01 1021 02 Typical Downflow Installation See Vent Termination KAS Shielding in Vent Section Coupling on inside and outside of wall to restrain vent pipe gt 8 Min 20 Max in same atmospheric zone Inlet Pipe not used on Single Pipe gt model Ow 8 Min Vent Pipes MUST be supported Horizontall and Vertically ob y 8 Min 201 Max in same atmospheric zone VENT PIPE Increase minimum from 8 to 18 for cold climates sustained temperatures WARNING CARBON MONOXIDE POISONING HAZARD Failure t
88. nace is designed solely to provide a safe and comfortable living environment The furnace is NOT designed to ensure that water pipes will not freeze It is equipped with several safety de vices that are designed to turn the furnace off and prevent it from restarting in the event of various potentially unsafe conditions If your furnace remains off for an extended time the pipes in your home could freeze and burst resulting in serious water damage If the structure will be unattended during cold weather you should take these precautions T Turn off the water supply to the structure and drain the water lines if possible and add an antifreeze for potable water to drain traps and toilet tanks Open faucets in appropriate areas Or 2 Installation A WARNING CARBON MONOXIDE POISONING HAZARD Failure to properly vent this furnace or other appliances could result in death or personal injury This furnace can NOT be common vented or connected to any type B BW or L vent or vent connector nor to any portion of a factory built or masonry chimney If this furnace is replacing a previously common vented furnace it may be necessary to resize the existing vent and chimney to prevent oversizing problems for the other remaining appliance s See Venting and Combus tion Air Check in Gas Vent Installation section This furnace MUST be vented to the outside Location and Clearances 1 Referto Figure 1 or Figure 2 for typical installation
89. nd the manufacture s installation instructions A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings Notes 1 The vent for this appliance shall not terminate a Over public walkways or b Near soffit vents or crawl space vents or other areas where condensate or vapor could create a nusiance or hazard or property damage or c Where condensate vapor could cause damage or could be detrimental to the operation of regulators relief valves or other equipment When locating vent terminations consideration must be given to prevailing winds location and other conditions which may cause recirculation of the combustiob products of adjacent vents Recirculation can cause poor combustion inlet condensate problems and accelerated corrosion of the heat exchangers 440 01 1021 02 Condensate Drain Trap This furnace removes both sensible and latent heat from the prod ucts of combustion Removal of the latent heat results in con densation of the water vapor The condensate is removed from the furnace through the drains in the plastic transition and the vent fit ting The drains connect to the externally mounted condensate drain trap on the left or right side of the furnace The startup of a new furnace will involve a cycle or two of the fur nace to properly prime the condensate trap with water Until the trap is fully primed some condensate wi
90. ning comfort lev els See Furnace Wiring Diagram Figure 40 Electrical Connections NOTE Junction Box can be mounted to either the left or right side 115V 60 Hz gt Ww BK Xs g Qe Models may Connection A have 1 or 2 Box ES X pressure switches Low Voltage 1 Terminal Board NOTE 115 a Oe e phase Operating voltage range 127 VAC max 104 VAC min 25 24 90 2 Permissible limits of voltage at which unit will operate satisfactoril Furnace Control Fuse The 24V circuit contains a 5 amp automotive type fuse located on furnace control See Figure 41 Any electrical shorts of 24V wiring during installation service or maintenance may cause fuse to blow If fuse replacement is required use only a fuse of identical size 5 amp Blower Off Delay Jumper Diagnostic Light 24 VAC HUM 25 24 98 440 01 1021 02 8 Ductwork and Filter Aa WARNING CARBON MONOXIDE POISONING HAZARD Failure to properly seal duct could result in death or personal injury Do NOT draw return air from inside a closet or utility room where furnace is located Return air duct MUST be sealed to furnace casing Installation NOTE Design and install the air distribution system to comply with Air Conditioning Contractors of America manuals and or NFPA pamphlets 90A and 90B or other approved meth
91. ning in the lower panel of the furnace Return air can not enter through rear of the furnace When the furnace is located in an area near or adja cent to the living area the system should be carefully designed with returns to minimize noise transmission through the return grille Any blower moving a high volume of air will produce audible noise which could be objectionable to when the unitis located very close to living areas Iltis advisable to route the return air ducts un der the floor or through the attic 1 Forside connections using a 16 x 25 filter cut out the em bossed area shown in Figure 42 This will provide a 141 2 x 2211 approximate opening Figure 42 Side Return Air Cutout A 141 Height of Cutout for 16 x 25 Filter B 221 Width of Cutout for 16 x 25 Filter es Y a on Side of Furnacel Beas Embossed Area A Furnace Bottom y NOTE Furnaces with 5 TONS cooling rating REQUIRE two 2 side returns or one side return with bottom return 2 Bottomreturns can be made by removing the knockout pan el inthe furnace base Do NOT remove knock out except for a bottom return 3 Installation oflocking type dampers are recommended in all branches orin individual ducts to balance system s air flow 4 Non combustible flexible duct connectors are recom mended for return and supply connections to furnace 5 If air return grille is located close to the f
92. nting plastic pipe and fittings NOTE In order to create a seal that allows future removal of pipe RTV sealant MUST be used on the inlet pipe where itjoins to the furnace NOTE All vent piping MUST be installed in compliance with local codes or ordinances these instructions good trade practices and codes of country having jurisdiction 1 Determine the best routing and termination for the vent pipe and air inlet pipe by referring to all of the instructions and guidelines in this Section 2 Determine the size required for the vent pipe and air inlet pipe 3 Loosely assemble all venting parts without adhesive pipe joint cement for correct fit before final assembly 4 Furnace shall be installed so as to prevent the accumulation of condensate 5 Use of vertical piping is preferred because there will be some moisture in the flue gases that may condense as it leaves the vent pipe See Special Instruction For Horizontal Vents 6 The vertical vent pipe MUST be supported so that no weight is allowed to rest on the combustion blower 7 Exhaust vent piping or air inlet piping diameter MUST NOT be reduced 8 All exhaust vent piping from the furnace to termination MUST slope upwards A minimum of 1 4 per foot of run is required to properly return condensate to the furnace drain system 9 Use DWV type long radius elbows whenever possible as they provide for the minimum slope on horizontal runs and they provide less res
93. nto the Trap Secure all connections with clamps Install the vent pipe grommet into the casing Cut an appropriate length of 2 PVC pipe long enough to exit the cabinet and connect the vent drain to either e A standard field supplied 2 PVC tee 9MP1 models or e A2 PVC coupling fastened onto the Drain Tee C9MPD models Install Tee Trap into bottom section of Tee Remove plug from the side of the furnace casing where Drain Tube will exit Loose parts bag 25 24 82 Install casing grommet black rubber g ID grommet in loose parts bag Install the 1 2 CPVC street elbow on discharge of Trap Install the black PVC tube connector 3 4 PVC x 1 2 CPVC from loose parts bag as shown in the illustration above Cut the black Drain Tube g ID in loose parts bag to length to fit between Trap and tube connector through grommet Clamp both ends of the Drain Tube using clamps provided Glue the CPVC street elbow to the Trap using appropriate cleaner and solvent cement Connect the Tee trap and the main drain line exiting the casing as shown in Figure 19 Note It is recommended that all PVC piping and fitting connec tions be fit up and inspected before final cementing Both the in ternal Trap and the external Tee Trap must be primed before operation Verify all condensate drain connections are securely clamped A coupling and clamps in loose part bag may be installed as shown for future servicing
94. o 6001 to 7001 to VALUE 2000 3000 4000 5000 6000 7000 8000 at ALTITUDE Orifice Manifold Manifold Manifold Orifice Manifold Orifice Manifold Manifold Orifice Manifold BTU CU FT Pressure No Pressure Pressure No Pressure No Pressure Pressure No Pressure 700 r i u li ow ANI N N e col col sol col co wl om of o mn al ol a o l uj pea wy Co el wj w s Co N wo _ Jo ii A E E ER EZ 1337 E E zo EZE 25 GOL co sy Gn al o N A o 42 E EZ i NOTE Natural gas data is based on 0 60 specific gravity For fuels with different specific gravity consult the National Fuel Gas Code ANSI Z223 1 2002 NFPA 54 2002 or National Standard of Canada Natural Gas And Propane Installation Code CSA B149 1 05 Bold indicates factory orifice size gt gt On el gt gt gt gt gt gt gt d NS NS NINININI N gt gt al gt gt gt gt el gt gt Im NI MP Kl N N wl wl wl wl a 2 o nal op NINI N tl Col Col l col 2 en cof cof col l ml cof Ss gt el 2 gt 2 el gt gt N N N Kl Kal N No 1 wm MP DM PP Py PT col cof tol sl so ol a al o cf col col a al o WP WP NE NMP NM N sj sj sol col cof cw Kal BP al Su of Of Ml al o ofS gt wm Table 9 LPG or PROPANE GAS MANIFOLD PRESSURE w c HEATING VALU
95. o follow safety warnings exactly could result in death or personal injury Do NOT operate furnace in a corrosive atmosphere containing chlorine fluorine or any other damaging chemicals which could shorten furnace life Refer to 3 Combustion amp Ventilation Air section Contaminated Combustion Air for combustion air evaluation and remedy 2 Iffurnaceis a replacement itis usually best to install the fur nace where the old one was Choose the location or evalu ate the existing location based upon the minimum clearance and furnace dimensions Figure 3 A CAUTION FROZEN AND BURST WATER PIPE HAZARD Failure to protect against the risk of freezing may result in property damage Special precautions MUST be made if installing furnace in an area which may drop below freezing This can cause improper operation or damage to equipment If furnace environment has the potential of freezing the drain trap and drainline must be protected The use of electric heat tape or RV antifreeze is recommended for these installations See Condensate Trap Freeze Protection Section Do NOT operate furnace in a corrosive atmosphere containing chlorine fluorine or any other damaging chemicals Refer to Combustion amp Ventilation Air section Contaminated Combustion Air Installation Requirements 1 Install furnace level 2 Thisfurnaceis NOT to be used for temporary heat of buildings or structures under construction 3 Instal
96. ods that conform to local codes and good trade practices 1 When furnace supply ducts carry air outside furnace area seal return air duct to furnace casing and terminate duct out side furnace space 2 Install air conditioning cooling coil evaporator on outlet side of furnace 3 For furnaces installed without a cooling coil it is recom mended that the outlet duct be provided with a removable access panel This panel should be accessible when the furnace is installed sothe exterior of the heat exchanger can be viewed for inspections The access panel MUST be sealed to prevent leaks 4 If separate evaporator and blower units are used install good sealing dampers for air flow control Chilled air going through the furnace could cause condensation and shorten the furnace life NOTE Dampers field supplied can be either automatic or manu al Manually operated dampers MUST be equipped with a means to prevent furnace or air conditioning operation unless damperis in the full heat or cool position Aa _ WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in death or personal injury 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 or the bottom On horizontal or downflow installa tions the return air must enter through the knockout ope
97. of either unit unless the damper is in full heat or full cool position A3 clearance is required on the right side of the furnace in orderto runthe condensate drainline Copper iron or plastic tubing may be used for the condensate drain line Downflow Furnace Installation Non Combustible Floor Installation Fabricate a plenum to the dimensions given in Table 12 for the furnace outlet Plenum should be flanged approximately 3 4 for support Note The three 3 screws in the top panel of the furnace next to the duct flange MUST be removed to provide serviceability of the primary heat exchangers in the downflow installation 1 Position plenum through the floor and set the furnace over the opening in the floor If necessary grout around the base to seal air leaks between the base and the floor Combustible Floor Installation A WARNING FIRE HAZARD Failure to install unit on noncombustible subbase could result in death personal injury and or property damage Place furnace on noncombustible subbase on downflow applications unless installing on non combustible flooring 440 01 1021 02 Subbase for Combustible Floor NOTE The three 3 screws in the top panel of the furnace next to the duct flange MUST be removed to provide serviceability of the primary heat exchangers in the downflow installation Note When using the subbase for combustible floors the dis charge air duct flanges on the furnace MUST be broken d
98. of the vent system 440 01 1021 02 Figure 13 Downflow Left Side Vent and Trap SIDE VIEW Yellow or black Plastic Cap Coupling amp Clamps Optional EXHAUST gt HLS UDI Vent Drain amp Clamps Either The PVC Drain Tee or a field supplied 2 PVC Tee 2 PVC Coupling lt Rotate downward 5 to 10 NOTE Built in channel will Drain Tube be angled 5 to 10 also Black Rubber 11 ID amp Clamps Dual Pressure Switch Relief Tube Black Rubber hi6 ID Q On Some Models Tee Trap White PVC ONLY loose parts bag g Elbow Tube Black Rubber 1 ID amp Clamps Loose Parts Bag Single Pressure Switch Detail WARNING INLET lt gt Flexible Tubing Connector 3 46 OD loose parts bag Relief Tube Extension Move Cap to top of Black Rubber 3 16 ID Cut to fit loose parts bag trap Drain Tube Corrugated 5 g ID Cut at straight section Trap Connection Clamp ears Pointed OUT Leave room for clamp Downflow Left Side Vent and Trap See Figure 13
99. ontal and downflow positions the return air ductwork must be attached to the bottom The return air ductwork must never be at tached to the back of the furnace Furnace Installation Considerations The installation of the furnace for a given application will dictate the position of the furnace the airflow ductwork connections vent and combustion air piping Consideration must be given to the follow ing Condensate Trap and Drain Lines The supplied condensate trap must be attached to the furnace side panel on either the left or right side For horizontal installa tions the drain trap is vertically attached to the side panel below the furnace A minimum clearance of 6 below the furnace is re quired for the condensate trap Downward slope of the conden sate drain line from the condensate trap to the drain location must be provided Adequate freeze protection of the drain trap and the drain line must be provided See Condensate Drain Trap section for further details Leveling Proper leveling of the furnace must be provided to insure proper drainage of the condensate from the furnace The furnace must be level to within 1 4 from frontto back and from side to side for upflow and downflow installations or top to bottom for horizontal installa tions Vent and Combustion Air Connections On the Dual Certified furnace the vent and combustion air pipes attach to the furnace through the top panel for the upflow and hori
100. operation of regulators relief valves or other equipment When locating vent terminations consideration must be given to prevailing winds location and other conditions which may cause recirculation of the combustiob products of adjacent vents Recirculation can cause poor combustion inlet condensate problems and accelerated corrosion of the heat exchangers 440 01 1021 02 Figure 9 Other than Direct Vent Termination Clearance A KRA ZL QILIR LD RAZA Y L a4 CIO IZTETITTIA a5 aK L Y YU ES ls e 25 24 65 2 VENT TERMINAL Y AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITED Clearance Descriptions Canadian Installation 1 U S Installation 2 Clearance above grade veranda porch deck balcony or 12 30cm 12 30 cm anticipated snow level Clearance to a window or door that may be opened 6 15 cm for appliances lt 10 000 BTUH 3kW 12 30 4 1 2 m below or to the side of the opening 1 30 cm cm for appliances gt 10 000 Btuh 3 kW and lt 100 000 Btuh l above the opening C Clearance to a permanently closed window 30 kW 36 91 cm for appliances gt 100 000 Btuh 30 kW Vertical clearance to a ventilated soffit located above the terminal within a horizontal distance of 2 61cm from the centerline of the terminal j 3 91 cm within 15 4 5 m above the meter regulator 3 91 cm within 15 4 5 m above the meter regulator electrical meter or
101. or Main Burner Flame Check Allow the furnace to run approximately 10 minutes then inspect the main burner See Figure 51 Check for the following Figure 51 Stable and blue flames Dust may cause orange tips or wisps of yellow but flames MUST NOT have solid yellow lips e Flames extending directly from burner into heat ex changer e Flames do NOT touch sides of heat exchanger If any problems with main burner flames are noted it may be nec essary to adjust gas pressures or check for drafts Burner Face NOTE For Ignitor location see Figure 52 440 01 1021 02 NOTE Flame sensor has a different orientation in all 050 models 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 Tempera ture rise is the difference between supply and return air tempera tures To check temperature rise use the following procedure 1 Place thermometers in supply and return air registers as close to furnace 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 4 Ifthe correct amount of temperature rise is NOT obtained it may be necessary to change bl
102. ore per forming the following steps 7 Electrical Wirin 2 Turn OFF gas supply to all appliances and start furnace Example Natural Gas No of Seconds Time Per Cubic BTU Per BTU Content Per Hour Foot in Seconds Hour 1 000 3 600 4 O 75 000 1 000 x 3 600 48 75 000 BTUH 3 Time how many seconds it takes the smallest dial onthe gas meter to make one complete revolution Refer to Example 4 Relight all appliances and ensure all pilots are operating NOTE If meter uses a 2 cubic foot dial divide results seconds by two Final Check WARNING FIRE OR EXPLOSION HAZARD Failure to follow the safety warnings exactly could result in death personal injury and or property damage Never test for gas leaks with an open flame Use a commercially available soap solution made specifi cally for the detection of leaks to check all connections A fire or explosion could result causing property damage personal injury and or loss of life 1 The furnace and the equipment shut off valve must be discon nected from the gas supply piping system during any pres sure testing of that system at test pressures in excess of 1 2 PSIG Close the manual shut off valve before testing at such pressures 2 When installation is complete test all pipe connections for leaks with the gas pressure less than 1 2 PSIG to the gas valve 3 The furnace must be isolated from the gas supply system by closing the equipment shut off v
103. ower speed A higher blower speed will lower the temperature rise A lower blower speed will increase the temperature rise Changing Blower Speed WARNING ELECTRICAL SHOCK HAZARD Failure to do so could result in death or personal injury Turn OFF power to furnace before changing speed taps NOTE The speed taps that the manufacturer sets from the factory for this product are based on a nominal 400 CFM per ton cooling and the basic mid range on the temperature rise for heating Since the manufacturer cannot establish the static pressure that will be applied to the unit it is the responsibility of the in staller dealer contractor to select the proper speed taps for the application when the unit is installed 440 01 1021 02 a CAUTION REDUCED FURNACE LIFE HAZARD Failure to properly set the air temperature rise may result in reduced furnace life Use ONLY the following blower motor speed taps for setting air temperature rise Blower Motor Speed Taps Model Sizes Hi BLK All Med Hi O All Med Lo BL DO NOT USE Lo RED DO NOT USE If it is necessary to change speeds refer to steps below Blower Speed Chart Wire Color T Hasrat Black Med High speed may not be provided on all models Table 13 Orange Blue T Refer to Furnace Wiring Diagram for location of the heating and cooling speed taps located on the furnace control as well as location of unused blower motor speed leads Use the ch
104. own to provide proper fit up to the subbase Use duct pliers to bend the duct flanges flat onto the furnace casing DO NOT bend the duct flanges inward toward the heat exchangers as air flow restric tions may occur Table 12 S Subbase for Combustible Opening In Base Typical Plenum Subbase for Combustible Floor Dimensions Opening In Floor For Plenum Dimensions Floors Part Number IE Furnace Subbase NAHHO01SB 1511 6 283 4 1496 16 161 4 1458 15 131 15 131 Subbase for Coil Cabinets The Subbase for Combustible Floors MUST be used when a downflow furnace is set on a combustible floor even when the fur nace is installed on a coil box 1 Cutthe opening in the floor according to Table 12 The hole in the floor must be cut to the dimensions listed in Table 12 since the base is equipped with locating tabs that center the base over the opening The opening in the base is 11 4 shorter and 1 g narrower than the recommended size of the opening in the floor This is done to maintain clearance between the floor and the plenum 2 Fabricate the plenum to the dimensions given in Table 12 Note that the dimensions given are outside dimensions Subbases for Combustible Floors Dimensions a a A A ES A E A EA NAHHO06SB ras Outside Dimension Base Spacer Side To Side 3 Set the base over the opening in the floor centering it over the opening Fasten the base to the floor with screws or nails See Figure
105. part supplied will be current active part For parts not listed consult place of purchase Description pan OMR N9MP2 Non Functi 050B 0758 080F 100F 1003 1253 050B 0758 080F 100F 100 125 on Functional Number 12C 12C 16C 14C 20C 20C 12C 12c 16C 14C 20C 20C Gasket Attachment Plate 1012542 2 gt 2 5 P ES 1012543 2 2 1012544 1012545 Cover Junction Box 1012350 Box Junction 1172860 Manifold 1012276 1012277 1012278 1012279 Bottom Burner Box 1172847 1172848 1172849 1172850 Baffle Burner Box 1012338 1012339 1012340 Top Burner Box 1013702 1013703 1013704 Bracket Manifold Support 1012377 Bracket Burner Box Side 1012532 Bracket Control Mounting 1172845 Tube Sensor 1172240 1172238 1172241 Trap Drain Assembly 1171917 Sightglass 1012756 Gasket Trap 1013701 Bracket Trap 1171986 Gasket Trap Bracket 1172000 1171987 Tube Drain Coll Box 58 ID 1173065 1172245 Tube Drain Tee Ta ID 1171989 Tube Relief 1172012 Drain Vent 1014003 Sightglass 1172768 PART NOT ILLUSTRATED Door Screws 1014488 Door Screws Grommets 1171990 Clamp Hose 3 4 1012976 Clamp Hose g 1012975 Grommet Vent 1012697 Bushing Strain Relief 1945287 Harness Wire 1172817 Trap Drain Tee 1171916 Tube 1 ID Drain 1171991 Tube 1 ID Elbow Street 1171996 Coupling 1 2 Barbed 1171993 ee H a ee ae E Oe ee ho en Y es ss A k dk d ek d d B MM A ehh
106. parts bag to length to Drain Tube gt ID from bottom of Drain Tee 9MPD models fit between Trap and tube connector through grommet only Clamp both ends of the Drain Tube using clamps provided Install Vent Pipe grommet in side of casing Glue the CPVC street elbow to the Trap using appropriate cleaner Cut an appropriate length of 2 PVC pipe long enough to exit the Arid solvent cement cabinet and connect the vent drain to either A standard field supplied 2 PVC tee N9MP1 models or Connect the Tee trap and the main drain line exiting the casing as e A 2 PVC coupling fastened onto the Drain Tee 9MPD mod eho in igure els Note It is recommended that all PVC piping and fitting connec tions be fit up and inspected before final cementing Both the in ternal Trap and the external Tee Trap must be primed before operation Verify all condensate drain connections are securely Install the black PVC drain connector 3 4 PVC x 1 5 CPVC from clamped A coupling and clamps in loose part bag may be loose parts bag as shown in the illustration above installed as shown for future servicing of the vent system Install Tee trap into bottom of tee Install the 1 2 CPVC street elbow on discharge of Trap 440 01 1021 02 Figure 12 All Models Vent thru Right Side Plastic Cap Yellow or black ONLY On Some Models G ol ual Vent Drain as Switch
107. potential field installed accessories such as elec tronic air cleaners and humidifiers that would receive power from the furnace control The furnace control is rated for a maximum of 1 0 amps combined for EAC and HUM Consult NEC or local codes for proper wire and circuit sizing NOTE Furnace will not have normal operation if line polarity is re versed Check ALL field and control connections prior to opera tion J Box Relocation The j box is installed on left side of casing An alternate j box location on right side can be used 1 Remove bag containing two hole plugs and two self tapping screws from loose parts bag in blower compartment 2 Remove two screws holding j box to casing 3 Install large hole plug from loose parts bag into the left j box location 4 Clip wire tie holding j box wires 5 Move j box to alternate location and attach using two self tapping screws from bag 6 Apply two hole plugs from bag at left j box location Thermostat Thermostat location has animportant effect on the operation of the unit Follow instructions included with thermostat for correct mounting and wiring Low voltage connections to furnace must be made on terminal board of furnace control Set thermostat heat anticipator in accordance with the Technical Support Manual Heat anticipator setting will need to be measured if 24VAC humidi fier is installed Measure currentin series from R to W at the ther mostat Be sure 24
108. propriate length of 2 PVC pipe long enough to exit the cabinet and connect the vent drain to either N A standard field supplied 2 PVC tee N9MP1 or N A 2 PVC coupling fastened onto the Drain Tee 9MPD models Install Tee Trap into bottom section of Tee Connect the Tee trap and the main drain line exiting the casing as shown in Figure 19 Note It is recommended that all PVC piping and fitting connec tions be fit up and inspected before final cementing Both the ex ternal Trap and the external Tee Trap must be primed before operation Verify all condensate drain connections are securely clamped A coupling and clamps in loose part bag may be installed as shown for future servicing of the vent system 440 01 1021 02 Figure 14 Downflow Right Side Vent and Trap Plastic Cap Yellow or black Trap Connection P Clamp ears Pointed OUT SIDE VIEW Vent Drain amp Clamps NOTE Built in channel wilt be angled 5 to 10 also Single Pressure Switch Detail Elbow Tube Black Rubber 1 1D amp Clamps Loose Parts Bag Dual Pressure Switch Preassemble amp Relief Tube insert into furnace Black Rubber 3 46 ID Barbed Coupling 1 OD Loose Parts Bag Drain Tube Black Rubber A 1 ID Cut to Fit amp Clamps Coupling amp Clamps Optional O On Some
109. rating for all gas appliances installed in the space requires outdoor air for combustion and ventilation Air Openings and Connecting Ducts 1 Total input rating for all gas appliances in the space MUST be considered when determining free area of openings 2 Connect ducts or openings directly to the outdoors 3 When screens are used to cover openings the openings MUST be no smaller than 1 4 mesh 4 The minimum dimension of air ducts MUST NOT be less than 3 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 lou ver assume a 20 free area for wood and 60 for metal Screens shall have a mesh size not smaller than 1 4 Requirements 1 Providethe space with sufficient air for proper combustion and ventilation of flue gases using horizontal or vertical ducts or openings 2 Figure 6illustrates howto provide combustion and ventilation air when two permanent openings one inlet and one outlet are used a One opening MUST commence within 12 of the floor and the second opening MUST commence within 12 of the ceiling b Size openings and ducts per Table 1 Outside Air This is ONLY a guide Subject to codes of country having jurisdiction Gas Vent Inlet ke AAA AO A laa d Vertical duct openings or openings directly communicat ing with the outdoors require 1 square inch of free area per 4 000 BTUH 550 mm2 kW for combined input
110. re Table 10 HEATING VALUE at ALTITUDE BTU CU FT Or fice l A EA o EA LE P 3 ERES 150 O 3 ES L j ze RS L 2 ny E MEG 23 377 z EE z 37 HEN 7 Tree 80937 81034 19 37 o o 9137 bb NOTE Natural gas data is based on 0 60 specific gravity For fuels with different specific gravity consult the National Fuel Gas Code ANSI 2223 1 2002 NFPA 54 2002 or National Standard of Canada Natural Gas And Propane Installation Code CSA B149 1 05 6 Za oy EA EA MEC EE Ele E E EA A EE ME E E ESA IM im HE 5 48 2 2 2 2 3 3 9 RS 3 3 6 3 1 i Z pas 2 Z pay 0 z a a 7 pa 7 pa 5 7 a 1 7 3 afz 3 5 3 lt F 7 5 3 1 9 8 6 5 7 4 Bold indicates factory orifice size LPG or PROPANE GAS MANIFOLD PRESSURE w c Ten FOR THE 80 000 BTUH MODEL AND ALTERNATE INPUT MODELS ATING VAL at ALTITUDE BTU CU FT MEAN ELEVATION FEET ABOVE SEA LEVEL O to 2001 to 2000 3000 3001 to 4001 to 5001 to 6001 to 7001 to 4000 5000 6000 7000 8000 2500 po e 3 ll wo ws NOTE Propane data is based on 1 53 specific gravity For fuels with different specific gravity consult the National Fuel Gas Code ANSI Z223 1 2002 NFPA 54 2002 or National Standard Of Canada Natural Gas And Propane Installation Code CSA B149 1 05 NOTE The derating of these furnaces at 2 Natural Gas and 4 Propane Gas has been tested an
111. re should be only ONE motor lead going to the Heat and Cont terminals WARNING ELECTRICAL SHOCK FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in dangerous operation death personal injury or property damage Improper servicing could result in dangerous operation serious injury death or property damage Before servicing disconnect all electrical powe to furnace When servicing controls label all wires prior to disconnecting Reconnect wires correctly Verify proper operation after servicing See User s Information Manual and the Service Manual 440 01 1021 02 11 Sequence of Operation amp Diagnostics The following is the normal operating sequence Cooling Y Request 24VAC signals applied to Y amp G terminals of FCB furnace control board Cool motor speed is energized after 5 second Cool Fan On Delay time Y amp G signals removed from FCB e Cool motor speed is de energized after 90 second Cool Fan Off Delay time Continuous Circulating Fan G Request 24 VAC signal is applied to G terminal of the FCB Heat motor speed is energized without delay G signal removed from FCB Heat motor speed is de energized after 5 second delay NOTE 1 Furnace de energizes the fan during the heat exchanger warm up period on a call for Heating that occurs during a Grequest unless a blower motor lead is connected to the Cont terminal on the FCB in which ca
112. rovided sealed to the furnace casing and terminated outside the space containing the furnace This prevents a negative pressure condition as created by the circulating air blower causing a flame rollout and or drawing combustion products into the structure The furnaceis controlled by a thermostat It may not be hot wired to provide heat continuously to the structure without thermostatic control e Clean outside air is provided for combustion This is to mini mize the corrosive effects of adhesives sealers and other construction materials It also prevents the entrainment of drywall dust into combustion air which can cause fouling and plugging of furnace components The temperature of the return air to the furnace is main tained between 55 F 13 C and 80 F 27 C with no eve ning setback or shutdown The use of the furnace while the structure is under construction is deemed to be intermittent operation per our installation instructions e The airtemperature rise is within the rated rise range on the furnace rating plate and the firing rate has been set to the rating plate value e The filters used to clean the circulating air during the construction process must be either changed or thoroughly cleaned prior to occupancy e The furnace ductwork and filters are cleaned as necessary to remove drywall dust and construction debris from all HVAC system components after construction is completed e After const
113. ruction is complete verify furnace operating con ditions including ignition input rate temperature rise and 440 01 1021 02 venting according to these instructions Figure 3 Dimensions amp Clearances AIR INTAKE vent 9MPD MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS FOR ALL UNITS REAR H FRONT combustion air openings in 3 G furnace and in structure Required For Service 94 ALL SIDES Of SUPPLY PLENUM 1 LEFT SIDE SIDES 1 TRAP KO COUNTERFLOW T VENT ELECTRICAL TOP OF FURNACE BS L The VENT L AIR INTAKE KO ALTERNATE AI Horizontal position Line contact is permissible only between TRAP KO he ipa lines formed by intersections of top and two sides of furnace UPFLOW HORIZONTAL e 13 jacket and building joists studs or framing mee E Ua 30 clearance recommended for furnace removal NOTE Evaporator A coil drain pan dimensions may vary from furnace duct opening size Always Ko consult evaporator specifications for duct size requirements Furnace is designed for bottom return or side return 2159 Return air through back of furnace is NOT allowed 24 Drawing is representative but some madels may vary BOTTOM 3g ALL DIMENSIONS IN INCHES Big G Capacity A e
114. s flashing error code 6 The igniter stays off for 17 seconds then begins to warm up again Theigniter glows red hot for 22 seconds then turns off The FCB proceeds to soft lockout and stops flashing error code 6 and begins flashing error code 6 1 The inducer motor de energizes after a 15 second post purge Control Board Diagnostic Codes See Figure 53 OFF 24VAC or 115VAC is off fuse is open Heartbeat Normal operation or no previous Diagnostic Code ON SOLID Soft Lockout Furnace Control Error 1 hr delay If code repeats immediately following power reset then replace control 1 Flash Not used 2 Flashes Pressure switch es closed when should be open 3 Flashes Pressure switch open when should be closed 4 Flashes Limit or roll out switch open less than 2 minutes 5 Flashes Flame sensed out of sequence 6 Flashes Failure to ignite or flame sense lost while running 6 1 Flashes Soft Lockout Max trials for ignition reached 3hr delay 7 Flashes Soft Lockout Limit or roll out switch open longer than 2 minutes 1 hr delay roll out switch requires manual reset 8 Flashes Permanent Lockout Gas valve relay contact stuck closed or miswired gas valve power reset only 10 Flashes Line voltage 115VAC polarity reversed If twinned refer to twinning kit instructions If status code recall is needed briefly 2 3 seconds remove then reconnect one limit switch wire main or rollout to display last
115. se WC Blower Switch Pressure Open C WC Transition Switch Pressure Close C WC Transition Switch Pressure Open WC Long Vent Kit Part No Pressure Switch Part No Blower Switch Pressure Close WC Blower Switch Pressure Open WC Transition Switch Pressure Close WC Transition Switch Pressure Open C WC High Altitude Long Vent Kit Part No Pressure Switch Part No Blower Switch Pressure Close WC Blower Switch Pressure Open WC Transition Switch Pressure Close WC Transition Switch Pressure Open C WC Blower Data Type amp Size Motor Amps Rpm Motor Type H p Cap Mfd Volts Filter Type amp Size Permanent not supplied Cool Cap Tons 5 W C L ML MHI 8 Hi Gas Conversion Kits Nat to LP NAHAOO1LP 1172958 LP to Nat NAHA001NG 1172960 Order from Service Parts 440 01 1021 02 LP Nat VR 8205S SNAP Hot Surface Integrated 60 100 140 180 2 2 2 3 1 8 2 0 2 1 1 6 1013803 1013803 1013812 2 0 2 0 1 5 18 18 1 3 NAHAO01LV 1013518 1 0 0 8 2 0 1 8 NAHA003LV 1013165 0 7 0 6 1 4 1 2 11 8 10 850 PSC 7 5 370 16x25x1 TIL 2 21 3 11 8 8 0 1050 PSC 7 5 370 16x25x1 11 7 2 211 3 1 10 1011050 PSC 10 370 16x25x1 211 3 3112 4 1013801 1013802 2 3 2 2 2 1 2 0 1013803 1013803 2 0 2 0 1 8 1 8 NAHA001LV NAHA001LV 1013518 1013518 1 0 1 0 0 8 0 8
116. se see NOTE 2 NOTE 2 Heating or Cooling requests received during a Fan request cause the fan speed to change to the appropriate heat or cool speed after the Fanon Delay time expires The fanreturns to continuous circulating speed after the selected Fan Off Delay time expires following loss of the Heating or Cooling request Continuous Circulating Fan Hard Wired Cont Request Field selected low speed motor tap installed on CONT terminal Low speed is energized when power applied to furnace Operates at this speed continuously while there are no other blower demands from furnace control Fan demands from furnace control for heat cool or G will override hard wired speed tap NOTE 3 EAC is NOT active for hard wired mode but IS active for fan demands from furnace control for heat cool and G Heating W Request Heating W Request e 24 VAC signal applied to W terminal of FCB e Inducer motor turns on and the pressure switch es close s Following a 15 second prepurge delay after the pressure switches closes the igniter begins a 17 second warm up The gas valve is energized the main burners light and flame is sensed The igniter is de energized after the main burners ignite e FCB will delay blower operation for the 30 seconds timed from the opening of the gas valve W signal removed from FCB The gas valve de energizes and the main burners go out The inducer runs for a 15 second postpurge period
117. shown in Table 7 by changing the main burner orifices Changing of burner orifices MUST be done by a qualified service technician See section on changing orifices or following page Table 7 BTUH Standard Rating Orifice zz See Table 10 for High Altitude See Table 11 for High Altitude Alternate Input Ratings USA ONLY BTUH Alternate LP Gas Orifice 55 55 55 55 Natural Gas 100 000 44 Supply Pressure A WARNING Failure to properly set input pressure could resultin death personal injury and or property damage Do NOT set input rating above that shown on rating plate 1 A Yg NPT plugged tapping accessible for a test gauge connection must be installed immediately upstream of the gas supply connection to the furnace 2 Gas input to burners MUST NOT exceed the rated input shown on rating plate 3 Do NOT allow minimum gas supply pressure to vary down ward Doing so will decrease input to furnace Refer to Table 7 Table 8 Table 9 Table 10 and Table 11 for nor mal gas supply and manifold pressures Gas Supply Pressure Gas supply pressure should be within minimum and maximum val ues listed on rating plate Pressures are usually set by gas suppli ers Manifold Gas Pressure Adjustment NOTE Make adjustment to manifold pressure with burners oper ating WARNING ELECTRICAL SHOCK HAZARD Failure to do so could result in death or personal injury Turn OFF po
118. side the cabinet when necessary because of clearances Use elbows and 3 pipe nipple to connect valve to piping when using left side gas pipe entry Models may LP Low pressure s have 1 or 2 switch REQUIRED P m pressure Manual shut off Sah switches valve a Alterative installation Drip Leg and Union Union should be outside Lis REA the cabinet Manual shut off valve MUST be V upstream of dripleg union and furnace Gas Pipe Grommet Union may be installed inside the cabinet when necessary Single Pipe because of clearances 440 01 1021 02 Additional LP Connection Requirements T Havealicensed LP gas dealer make all connections at stor age tank and check all connections from tank to furnace 2 Ifcoppertubingis used it MUST comply with limitation setin National Fuel Gas Code or CGA codes 3 Two stage regulation of LP gas is recommended LP Conversion An accessory kit shall be used to convert to propane gas use see the furnace rating plate for the LP conversion accessory kit part number FIRE EXPLOSION UNIT DAMAGE HAZARD Failure to follow this warning can result in death property damage and or personal injury An LP conversion accessory kit is required when operating the furnace with LP gas Alternate BTUH Input Ratings USA Only The input rating of these furnaces can be changed from the stan dard input rating to the alternate input rating
119. sing Grommet Black Rubber 5f ID Loose parts bag 1h CPVC Loose parts bag Drain Line Vent Tee 3 4 PVC or Ta CPVC Field supplied Upflow Installations Top Vent See Figure 10 Remove plug from the side of the furnace casing where Drain Tube will exit Install casing grommet black rubber g ID grommet in loose parts bag Install the 1 2 CPVC street elbow on discharge of Trap Install the black PVC tube connector 3 4 PVC x 1 2 CPVC from loose parts bag as shown in the illustration above Cut the black Drain Tube 5 8 ID in loose parts bag to length to fit between Trap and tube connector through grommet Clamp both ends of the Drain Tube using clamps provided Y Drain Tube Black Rubber 5 g ID amp Clamps Cut length to fit Loose parts bag 25 24 80 Glue the CPVC street elbow to the Trap using appropriate cleaner and solvent cement Connect the Tee trap and the main drain line exiting the casing as shown Figure 19 Note It is recommended that all PVC piping and fitting connec tions be fit up and inspected before final cementing Trap must be primed before operation Verify all condensate drain connec tions are securely clamped A coupling and clamps in loose part bag may be installed as shown for future servicing of the vent sys tem NOTE PVC is used as a generic term Pipe and fitting mat
120. sket provided in the loose parts bag cover the hole from the burner compartment to the blower compartment and secure with screws Mount the Trap externally to the bottom side of the unit using the 2 screws provided in the location shown Cut the corrugated tube as shown in the illustration above Con nect the corrugated hose from the transition to the Trap Secure connections with clamps Connect the black 1 ID Drain Tube from the Vent Drain to the Trap If an extension is required use the black 1 OD barbed coupling and the black 1 5 ID Drain Tube in the loose parts bag Cut tube to length Secure connections with clamps Connect the 3 76 ID relief tube to the middle port on the Trap If anextensionis required use the clear 3 46 OD flexible tubing con Cut Here Drain Tube Black Rubber 1 ID amp Clamps 25 24 89 nector and the black 3 46 ID relief tube in the loose parts bag Cut tube to length Cut an appropriate length of 2 PVC pipe fittings and extension pipe long enough to exit the cabinet and connect the vent drain to a standard field supplied 2 PVC Tee Install Tee Trap into bottom section of Tee Connect the Tee trap and the main drain line exiting the casing as shown in Figure 19 Note It is recommended that all PVC piping and fitting connec tions be fit up and inspected before final cementing Both the ex ternal Trap and the external Tee Trap must be primed before
121. stored status code Do not remove power or blower door before initiating status code recall or code will be lost Code is automatically cleared after 72 hours or upon power reset Proper flame sense microamps 0 7 microamps D C minimum 2 0 4 0 microamps nominal Figure 53 Control Board Diagnostic Light 440 01 1021 02 Technical Support Manual Four Position Furnace Models a Single Pipe N9MP1050B12C1 N9MP1075B12C1 N9MP1080F16C1 N9MP1100F14C1 N9MP1100320C1 N9MP1125J20C1 or Two Pipe N9MP2050B12C1 N9MP2075B12C1 N9MP2080F16C1 N9MP2100F14C1 N9MP2100J20C1 N9MP2125J20C1 or Dual Certified 9MPDO50F12C1 9MPDO75F12C1 9MPD080J16C1 9MPD100J14C1 9MPD100J20C1 9MPD125L20C1 Denotes Brand International Comfort Products LLC Lewisburg TN 37091 Fast Parts Division 866 380 3278 Save This Manual For Future Reference 440 01 1021 02 Model Specifications Manufacturers Number Mfr No See Rating Plate ALL Models Specifications N9MP1 N9MP1050B12C N9MP1075B12C NOMP1080F16C NOMP1100F14C N9MP1100J20C N9MP1125J20C General Gas Type Input Btuh Output Btuh Transformer Size VA T stat Heat Anticipator Temp Rise F Nat LP 50 000 45 500 40 50 35 65 Nat LP 75 000 68 000 40 50 40 70 Nat LP 80 000 72 000 40 50 35 65 Nat LP 100 000 91 000 40 50 40 70 Nat
122. thin the furnace s in tended temperature rise range with a duct system which has an external static pressure within the allowable range as specified in Technical Support Manual of these in structions See furnace rating plate When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space con taining the furnace the return air shall also be handled by a duct s sealed to the furnace casing and terminating out side the space containing the furnace A gas fired furnace for installation in a residential garage must be installed as specified in 2 Installation of these instructions This furnace is not to be used for temporary heating of buildings or structures under construction Therefore to help alert people of potentially dangerous carbon monoxide levels you should have a commercially available carbon monoxide alarm that is listed by a nationally recog nized testing agency in accordance with Underwriters Labora tories Inc Standard for Single and Multiple Station Carbon Monoxide Alarms ANSI UL 2034 or the CSA 6 19 01 Resi dential Carbon Alarming Devices installed and maintained in the building or dwelling concurrently with the gas fired furnace installation see Note below The alarm should be installed as recommended by the alarm manufacturer s installation in structions B There can be numerous sources of fire or smoke in a building or dwelling Fire or smoke
123. ure 35 using field supplied metal strapping or equiva lent material NOTE Ensure the termination height is above the roof sur face or anticipated snow level as shown in Figure 31 for vertical termination Ensure the termination location clear ance dimensions are as shown in Figure 34 and Figure 35 for horizontal termination Strap l E Field Supplied Combustion 8 Install the rain cap and the small diameter pipe assembly in a the Y concentric fitting and the large pipe assembly Ensure Vent is that the small diameter pipe is bottomed out and securely y gt 2 cemented in the Y concentric fitting O 9 Cement the furnace combustion air and vent pipes to the 5 lt concentric vent termination assembly See Figure 34 or Combustion Figure 35 for proper pipe attachment Air 45 Elbow Field Supplied 25 22 02 3 Note 10 Operate the furnace through one heat cycle to ensurecom Securing strap must be field installed to prevent movement of termination kit in side wall bustion air and vent pipes are properly connected to the concentric termination connections 6 Gas Supply and Pipin 1 Properly size gas pipe to handle combined appliance load or run gas pipe directly from gas meter or LP gas regulator Refer to NFGC and ANSI Z223 1 for proper gas pipe size CARBON MONOXIDE POISONING FIRE AND EXPLOSION HAZARD 2 Install
124. vapor barrier Openings are gasketed or sealed and 2 Doors and openable windows are weather stripped and 3 Other openings are caulked or sealed These include joints around window and door frames between sole plates and floors between wall ceiling joints between wall panels at penetrations for plumbing electrical and gas lines etc Ventilation Air Some provincial codes and local municipalities require ventilation or make up air be brought into the conditioned space as replace ment air Whichever method is used the mixed return air tempera ture across the heat exchanger MUST not fall below 60 so that flue gases will not condense excessively in the heat exchanger Excessive condensation will shorten the life of the heat exchanger and possibly void your warranty Venting and Combustion Air Check Vent Pipe Draft Hood Typical Gas Water Heater Vu Match If flame pulls towards draft hood this indicates sufficient venting NOTE When an existing Category furnace is removed or re placed the original venting system may no longer be sized to prop erly vent the attached appliances and to make sure there is adequate combustion air for all appliances MAKE THE FOL LOWING CHECK 440 01 1021 02 A WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow the steps outlined below for each appliance connected to the venting system being placed into operation could result in carbon monoxide poisoning or death T
125. ves water heaters furnaces gas fired fireplaces wood fireplaces NOTE This furnace is design certified by the CSA International Carbon monoxide can cause serious bodily injury and or formerly AGA and CGA for installation in the United States and death Carbon monoxide or CO is a colorless and odorless Canada Refer to the appropriate codes along with this manual gas produced when fuel is not burned completely or when the for proper installation flame does not receive sufficient oxygen Use only the Type of gas approved for this furnace see Rating Plate on unit Overfiring will result in failure of heat exchanger and cause dangerous operation Furnaces can be converted to L P gas with approved kit Install this furnace only ina location and position as speci fied in 2 Installation of these instructions e Provide adequate combustion and ventilation air to the fur nace as specified in 3 Combustion and Ventilation Air of these instructions Combustion products must be discharged outdoors Con nect this furnace to an approved vent system only as spe cified in 4 Vent and Combustion Air Piping of these instructions Never test for gas leaks with an open flame Use a com mercially available soap solution made specifically for the detection of leaks to check all connections as specified in 6 Gas Supply and Piping Final Check of these instruc tions Always install furnace to operate wi
126. wer to furnace before changing speed taps Remove the burner compartment door With gas OFF connect manometer to tapped opening on gas valve See Figure 38 Use manometer with a 0 to 15 water column range Turn gas ON Operate the furnace by using a jumper wire on the R to W thermostat connections on the control gt Remove manifold pressure adjustment screw cover on fur nace gas control valve Turn adjusting screw counterclock wise to decrease manifold pressure and clockwise to increase pressure Outlet Pressure Tap Vg NPT HONEYWELL Oo OUTLET Inlet Pressure Tap fg NPT jo 25 24 98a NOTE Adjustment screw cover MUST be replaced on gas control valve before reading manifold pressure and operating furnace 5 Set manifold pressure to value shown in Table 8 Table 9 Table 10 or Table 11 6 Whenthe manifold pressure is properly set replace the ad justment screw cover on the gas control valve 7 Remove jumper wire from thermostat connection on the control board Remove manometer connection from man ifold pressure tap and replace plug in gas valve 8 Check for leaks at plug 9 Replace the burner compartment door 440 01 1021 02 MANIFOLD PRESSURE AND ORIFICE SIZE FOR HIGH ALTITUDE APPLICATIONS Table 8 NATURAL GAS MANIFOLD PRESSURE w c MEAN ELEVATION FEET ABOVE SEA LEVEL HEATING 0 to 2001 to 3001 to 4001 to 5001 t
127. ystem must be corrected in accordance with the National Fuel Gas Code ANSI 2223 1 NFPA 54 and or CSA 8149 1 Natural Gas and Propane Installation Code After it has been determined that each appliance connected to the venting system properly vents when tested as outlined above return doors windows exhaust fans fireplace dampers and any other gas fired burning appliance to their previous conditions of use For Two Pipe Installation This furnace can NOT be common vented or connected to any type B BW or L vent or vent connector nor to any portion of a facto ry built or masonry chimney If this furnace is replacing a previous ly common vented furnace it may be necessary to resize the existing vent and chimney to prevent oversizing problems for the other remaining appliance s See Venting and Combustion Air Check in this section This furnace MUST be vented to the out side 4 Vent and Combustion Air Piping A WARNING CARBON MONOXIDE POISONING HAZARD Failure to properly vent this furnace could result in death or personal injury Use methods described here to provide combustion and ventilation air Single Pipe N9MP1 Models This furnace is certified as a category IV appliance This furnace requires ventilation openings to provide air for proper combustion and ventilation of flue gases All duct or openings for supplyin combustion and ventilation air must comply with the gas codes or in absence of local codes

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