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Hunter Fan 21970 Fan User Manual

1. NOTE Flame sensor has a different orientation in all 050 models Air Temperature Rise Check A CAUTION REDUCED FURNACE LIFE HAZARD Failure to properly set the air temperature rise may result in reduced furnace life Use ONLY the blower motor speed taps marked Y for YES for setting air temperature rise Blower Motor Speed Taps for N8MPN L and 8MPN L Model Sizes LO M LO HI lt eer N e N_ a a A ae a aC oe EN _N v v_ lt I lt lt C a S v v_ C ON YY frooreo TN YY beef x r n m n E EE neste fo eo a mow n v v Y N8MPN only vV 8MPN only lt lt lt lt lt lt The blower speed MUST be setto 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 Placethermometers in supply and return air registers as close to furnace as possible avoiding direct radiant heat from heat exchangers 2 Operate furnace for 10 minutes with all the registers and duct dampers open by using a jumper wire on R to W thermostat connections on the fan board 3 Take readings and compare with range specified on rating plate 4 Ifthe airtemperature rise is not in the correct range the blow er speed must be changed A high
2. Heat or Cool terminal to the vacated M1 or M2 termi nal 3 Ifthe same speed must be used for both heating and cooling remove the undesired motor speed lead from the Heat or Cool terminal and connect that lead to the open terminal at M1 or M2 location or tape off Attach a jumper between the Heat and Cool terminals and the remaining motor speed lead Note When using the same speed on 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 M1 or M2 location Thoroughly check the system after modification to ensure the proper operation of the circulating air blower in all modes of opera tion 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 Wired Continuous Fan Operation A terminal is provided on the furnace control board located in the circulating air blower compartmen
3. 0 69 0 59 1013529 0 69 0 59 1013529 0 69 0 59 1013529 0 69 0 59 1013529 0 69 0 59 1013529 0 69 0 59 1013529 0 69 0 59 1013529 0 69 0 59 Furnace Control Type Furnace Control On Timed secs Off Blower Data Type amp Size Motor Type H p Cap Mfd Volts Filter Type 600 FPM Filter Size Not Supplies 1600 CFM and over Min Cool Cap Tons Max Cool Cap Tons Gas Conversion Kits 11 8 PSCIMp 10 370 Washable 14x25x1 1 5 3 11 8 PSCI 7 51370 Washable 14x25x1 1 5 3 11 10 PSC h 10 370 Washable 16x25x1 16x25x1 2 3 4 Integrated 30 60 100 140 180 11 10 PSC 1 7 51370 Washable 16x25x1 11 10 PSC h 10 370 Washable 16x25x1 16x25x1 2 3 5 11 10 PSC 1 10 370 Washable 20x25x1 16x25x1 2 3 5 11 10 PSCI 10 370 Washable 20x25x1 16x25x1 2 3 5 12 12 PSC 40 370 Washable 20x25x1 16x25x1 2 3 5 NattoLP NAHAOO1LP 1172958 LP to Nat NAHAOQO1NG 1172960 Must be ordered from Service Parts 441 01 2613 02 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE Manufacturers Number Mfr No See Rating Plate ALL Models 8MPL 8MPL 050B12 8MPL 075B12 8MPL 075F16 8MPL 100F20 8MPL 100J20 BMPL 125520 General Input Btuh Output Btuh Temp Rise F Electrical Volts Hz 115 60 115 60 115 60 115 60 Nat LP Nat LP Nat LP Nat LP Gas
4. Clearance to each side of the centerline extended above or 7 elow vent terminal of the furnace to a dryer or water heater vent or other appliance s direct vent intake or exhaust Q Clearance from a plumbing vent stack 3 91 cm 3 91 cm 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 pen A J EA 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 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 termina
5. Description Part Functional Number Heat Exchanger 1014316 1014317 1014318 1014319 1014320 1014321 Switch Pressure 1013529 Wheel Blower 1013011 1011420 Mount Motor kit 1014824 1014823 1014822 Motor Blower 1 115 1 2 CCW 1172490 1 115 1 2 CCW 1172487 1 115 1 2 CCW 1172488 Capacitor 1171729 1171728 Transformer 1172810 Control 1172550 Switch Interlock 1171981 Burner Assembly 1172884 1172965 1172966 1172967 Flame Sensor 1172827 ignitor 1172533 Orifice Burner 42 1011351 Valve Gas 1172821 Switch Limit Rollout 1013102 Switch Limit Main 1008417 1320362 1065294 Blower Combustion Inducer 1014433 See Table below for bellyband location on motor Bellyband Location on Motor Model 8MPL A in 050B12B1 1 38 075B12B1 1 38 Ei 30 rar rar 441 01 2613 02 Replacement Parts 8MPL naturai cas Models 8MPLO50B12B1 8MPLO75B12B1 8MPLO75F16B1 8MPL100F20B1 8MPL100J20B1 8MPL125J20B1 Replacement part supplied will be current active part For parts not listed consult place of purchase Description Part Functional Number Panel Top 1013982 1013983 1013984 Box Junction 1172860 Cover Junction box 1012350 Partition Blower 1014009 1014010 1014011 Housing Blower 1172885 1172969 Hanger Blower 1012328 Panel Blower Cutoff 721020013 721020008 Clamp Capacitor 1170643 Bracket Control Mounting 1172845 Door Blower Heil Arco 11730
6. IN SERIES DEPENDING Manca eves iP PRES SURE CAPACITOR COPPER CONDUCTORS TO 115VAC EP EDU CONNECE EUNE N ENGNG ONLY rh WHEN USED WHEN USED SOME MODELS NEUTRAL 3 ACO HOT E INTERLOCK NEUTRAL SWITCH m NOTE 8 L l 1 Q E A IGNITER INDUCER CAPACITOR ae 1 TO 2 IN SERIES INDUCER GRN V l SOME MODELS DEPENDING ON MODEL MOTOR I J P5 M LA I w BK GZNIEWOOD XVW YO L WAH OVE O88 0E AVIEC NO LVSH OAS 06 AWIEG AdO 1009 oas AWTS NO 1009 7 JLON NOTE 3 NOTE 12 W O gt SENSOR NOTE 13 IGNITER HEAT COOL JUNCTION RELAY BOX x AWIaG ddO LV3H MLO BL HOLIMS NOOVHSLNE PSC BLOWER MOTOR YOLIDVdYD BLOWER CONT FAN OPT I NdIN8 AWI3G ddO 100 SEC 115VAC a gt v gt a 3 o 5 ROLLOUT SWITCH 1 TO 3 aaar IN SERIES DEPENDING TRANSFORMER ON MODEL FUSE 5A F MAIN LIMIT 24VAC COM J 1 100 180 60 140 140 SEC PRESSURE SWITCH 1TO21N SERIES NOTE DEPENDING ON MODEL If any of the original equipment wire is replaced use wire rated 105 C SPEED TAP CODE COLOR CODE E Use only copper wire between the disconnect switch and the fumace HUM _Z4VAC BLACK LP PRESS SWITCH junction box BLACK HI i i BLUE LP MODELS ONLY This wire must be connected to furnace sheet metal for control to ORANGE MHI BROWN rove flame Symbols are electrical representation only BLUE MLO T RO LLOW Solid
7. Integrated 30 60 100 140 180 11 10 10 3 1100 PSC f 10 370 Washable 16x25x1 16x25x1 2 3 4 11 10 10 1050 PSCA 10 370 Washable 16x25x1 16x25x1 2 3 5 11 10 11 9 900 PSC h 10 370 Washable 20x25x1 16x25x1 2 3 5 11 10 10 1050 PSC 10 370 Washable 20x25x1 16x25x1 2 3 5 15 Circulation Air Blower Data CFM E N8MPN L050B12 amp 8MPN L050B12 1 Denotes Brand BN8MPN L100F20 amp 8MPN L100F20 2 4 Denotes Brand Air Delivery in Cubic Feet per Minute C F M Air Delivery in Cubic Feet per Minute C F M Furnace Rated 0 5 WC ESP Furnace Rated 0 5 WC ESP 7 1167 1387 04 638 Inches of W C Inches of W C v iJ 3 a a o Lad a S bA S n T g bed ind G x t Exterrnal Static Pressure E N8MPN L075B12 amp 8MPN LO75B12 1 Denotes Brand i N8MPNIL100J22 2 Air Delivery in Cubic Feet per Minute C F M Air Delivery in Cubic Feet per Minute C F M Furnace Rated 0 5 WC ESP Furnace Rated 0 5 WC ESP TAP LOW MEDL MED H HIGH MEDL MEDH HIGH 10 695 963 1220 1559 1997 2292 2519 30 644 928 1183 1463 73 1941 2206 2410 8 1361 771 1239 675 1083 1 00 413 615 835 1326 1478 1667 1814 N8MPN L075F16 amp 8MPN L075F16 1 3 Denotes Brand E 8MPN L100J20 2 Denotes Brand Air Delivery in Cubic Feet per Minute C F M Furnace Rated 0 5 WC ESP TAP LOW MEDL
8. 300 FPM or less 441 01 2613 02 Figure 22 Optional Duct Standoff 0 x 25 Optional ilter Rack 25 23 05 4 Filter Optional Filter Rack Installation Side Return Center the filter rack on the side panel flush with the bottom edge of the furnace Mark the fastening holes Drill the fastening holes in the side panel and fasten the filter rack in place with sheet metal screws See Figure 23 and Figure 24 Figure 23 Side Return Filter Rack j Dn L A a IUH VUA LULU THULE HH 25 23 05 4a Figure 24 Filters Installed on Two Sides Using Two Filter Racks N 25 23 05 3 N 4 Filter Filter Internal Filter in Bottom Return Installation When installing a bottom mounted filter inside the furnace install the filter clips on the edge of the bottom duct opening with the wider end of the clips toward the blower as shown in Figure 25 Clips may be obtained from your distributor or fabricated from sheet metal Figure 26 Insert filter into side clips first and push filter back until it is fully engaged into back clip Figure 25 Bottom Mounted Filter Center Clip side to side 25 24 18 1 26 Ga Galvanized Steel NOTE If filters are only suitable for heating application advise homeowner that filter size may need to be increased if air condi tioning is added Addition Of Air Conditioning When a refrigeration coil is used in conjunction with this fur
9. 441 01 2613 02 Figure 14 Gas Valve with Elbows N8MP 25 24 96 2 AN gt 3 Turn assembly an additional 3 g turn to position inlet near the bottom back corner of the gas valve in line with gas opening on left side of furnace see Figure 15 4 Gas supply line then can be run directly into opening of elbow Piping with Close Nipples and Standard Elbows 1 Assemble elbows and nipples similar to street elbows shown in Figure 13 2 Follow steps 2 through 4 Piping with Street Elbows Figure 15 Gas Valve with Elbows N8MP FIRE HAZARD Failure to follow safety warnings exactly could result in death personal injury and or property damage Use wrench to hold furnace gas control valve when turning elbows and gas line to prevent damage to the gas control valve and furnace Left Side Gas Entry 8MP See Figure 16 Pipe can be run directly to gas valve through the hole provided in the left side of the cabinet Right Side Gas Entry 8MP See Figure 16 Two 2 90 street elbows or two 2 90 standard elbows and two 2 close nipples are required for right side gas supply Figure 16 Typical Gas Piping 8MP Piping with Street Elbows 1 Screw one elbow onto gas valve with the outlet facing away from the furnace Screw second elbow onto first elbow tight enough to be leak proof An additional 1 4 turn will be required at the end of step 2 See Figure 17 and Figure 18 2 Follow s
10. MEDH HIGH 10 598 841 1427 73 50 289 667 1343 1677 712 1020 1459 2078 70 236 1424 1963 90 554 894 1347 1795 436 1016 1262 1262 1705 E N8MPN100F 14 amp 8MPN100F14 1 Denotes Brand BE N8MPN L125 20 amp 8MPN L125J20 2 5 Denotes Brand Air Delivery in Cubic Feet per Minute C F M Furnace Rated 0 5 WC ESP Inches of W C Inches of W C Exterrnal Static Pressure Exterrnal Static Pressure Air Delivery in Cubic Feet per Minute C F M Furnace Rated 0 5 WC ESP LOW MEDL MED H HIGH 7 1045 1453 2147 Exterrnal Static Pressure Inches of W C Exterrnal Static Pressure Inches of W C Air Delivery in Cubic Feet per Minute C F M Furnace Rated 0 5 WC ESP g Mm 6 h pi G Inches of W C v pe 5 7 7a o hee oa 2 2 g Y fa hee gt lt Lud Exterrnal Static Pressure NOTE 1 Data based on Bottom Only or One Side return 2 Data based on Both Sides or Bottom plus One Side 3 075F16 Reduce airflow by 5 if Bottom Only return 4 100F20 Reduce airflow by 10 if Bottom Only return Ta X25 7400 5 125320 Reduce airflow by 5 if Bottom Only return 14x25 1400 6 125J22 Reduce airflow by 10 if Bottom Only return 7 150320 Reduce airflow by 10 if Bottom Only return 20 X 25 2000 4 X 25 2500 Max CFM based on 600 FPM Fi
11. Parts List 1013529 0 69 0 59 11 10 PSCAIy 40 370 Washable 20x25x1 16x25x1 2 3 5 5 Manufacturers Number Mfr No See Rating Plate ALL Models 8IMPN Specifications 8MPN 050B12 8MPN 075B12 8MPN 075F16 8MPN 100F14 8MPN 100F20 8MPN 100J20 8MPN 125J20 8MPN 150J20 General Input Btuh Output Btuh Temp Rise F 50 000 40 000 35 65 75 000 60 000 30 60 75 000 60 000 30 60 100 000 81 000 35 65 100 000 81 000 35 65 100 000 81 000 35 65 125 000 101 000 35 65 150 000 121 000 35 65 Electrical Volts Hz 115 60 115 60 115 60 115 60 115 60 115 60 115 60 115 60 9 0 97 12 0 12 0 Na LP Nat LP Nat LP Na LP Nat LP Rating Plate Amps 9 7 Nat LP Gas Type 12 0 13 5 Transformer Size VA T stat Heat Anticipator Gas amp Ignition Std Main Orifices No Size Gas Valve Honeywell Regulation Type Manifold Press Inch s WC VR 8205S SNAP Ignition Type Series Hot Surface Combustion Flue Outlet Size Inches Limits amp Controls Thermal Sensor F Limit Control Auxiliary Limit F 4 300 See Parts List 130 300 See Parts List 130 300 See Parts List 130 300 See Parts List 130 300 See Parts List 130 300 See Parts List 130 300 See Parts List 130 300 See Parts List 130 Std Pressure Sw Part No Press Close Press Open 1013529
12. a nationally recog can be converted to LP gas with approved kit 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 Install this furnace only in a location and position as speci fied in 2 Installation of these instructions e Provide adequate combustion and ventilation air to the fur the building or dwelling concurrently with the gas fired furnace nace as specified in 4 Combustion and Ventilation Air of installation see Note below The alarm should be installed as these instructions recommended by the alarm manufacturer s installation in Combustion products must be discharged outdoors Con structions is nect this furnace to an approved vent system only as spe B There can be numerous sources of fire or smoke in a building cifiedin 5 Gas Vent Installation 6 Horizontal Venting and or dwelling Fire or smoke can cause serious bodily injury 7 Masonry Chimney Venting of these instructions death and or property damage Therefore in order to alert i people of potentially dangerous fire or smoke you should have Never test for gas leaks with an open flame Use a com fire extinguisher and smoke alarms listed by Underwriters Lab mercially available soap solution made specifically for the oratories installed and maintained in the bui
13. air con nection through the side s or back of the furnace is NOT allowed of the plenum should rest on top of the combustible floor base 441 01 2613 02 Duct Design and Duct Installation Requirements See Section 10 Internal Filter in Top Return Installation When installing top mounted filter inside the furnace install the fil ter clips on the edge of the top duct opening with the wider end of the clips toward the blower as shown in Figure 32 Clips may be obtained from your distributor or fabricated from sheet metal Figure 33 Insert filter into side clips first and push filter back until itis fully engaged into back clip Figure 32 Top Mounted Internal Filter Center Clip side to side 12 Checks and Adjustments Figure 33 Filter Clip Construction mS ee lt 5 26 Ga Galvanized Steel NOTE If filters are only suitable for heating application ad vise homeowner that filter size may need to be increased if air conditioning is added Addition Of Air Conditioning See Section 10 Startup NOTE Refer to startup procedures in the Users Information Manual a WARNING ELECTRICAL SHOCK FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in death personal injury and or property damage If any sparks odors or unusual noises occur immediately shut OFF gas and power to furnace Check for wiring errors or obstruction to blower Gas Supply Pressure Gas sup
14. i 25 24 65 2 AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITED VENTT L Clearance Descriptions Canadian installation 1 U S Installation 2 Clearance above grade veranda porch deck balcony or 12 30cm 2 30 cm anticipated snow level 1 Clearance to a window or door that may be opened 6 15 cm for appliances 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 f above the opening 30 kW 36 91 cm for appliances gt 100 000 Btuh 30 kW Vertical clearance to a ventilated soffit located above the ter minal within a horizontal distance of 2 61cm from the cent erline 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 trical meter or gas service regulator assembly assembly assembly Pot P Clearance to non mechanical air supply inlet to building or the 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 combustion air inlet to any other appliance cm for appliances gt 10 000 Btuh 3 kW and lt 100 000 Btuh f 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 91 cm above if within 10 3m horizontally Jearance under a veranda porch deck or balcony 12 30 cm E
15. in a kit from your distrib utor to cover upside down labels Downflow Venting The combustion venter MUST be rotated to vent out the side for all downflow installations see Figure 5 Bot tom venting is not permitted See Side venting for instructions to rotate the vent to the side In addition to rotating the ventto the side a Vent Pipe Shield NAHA002VC is required to shield the hot vent pipe 4 WARNING BURN HAZARD Vent pipe is HOT and could cause personal injury Hot vent pipe is in reach of small children when installed in downflow position Install vent pipe shield NAHAOQO2VC Pressure Switch Relocation If the furnaceis installed in the upflow position the pressure switch will remain in the same position as installed by the factory unless the inducer is rotated If the furnace is installed in an orientation that places the pressure switch below the pressure tap on the in ducer housing then the switch MUST be relocated In order to re locate the switch locate 2 mounting holes or drill above the inducer pressure tap When drilling the 2 holes make sure to keep the switch and tubing far enough away from the burners or hot sur faces as to not melt the hose switch or wires To prevent possible 3 Side Ventin kinking of the pressure switch hose trim the hose to remove ex cess length Note When drilling new holes make sure metal shavings do not fall on or in components as this can shorten the life of th
16. input rate per the installation instructions Low gas inputrate causes low vent gas temperatures caus ing condensation and corrosion in the furnace and or vent ing system Derating is permitted only for altitudes above 2000 3 Adjust the air temperature rise to the midpoint of the rise range or slightly above Low air temperature rise can cause low vent gas temperature and potential for condensation problems 4 Set the thermostat heat anticipator or cycle rate to reduce short cycling Air for combustion must not be contaminated by halogen com pounds which include chlorides fluorides bromides and iodides These compounds are found in many common home products such as detergent paint glue aerosol spray bleach cleaning sol vent salt and air freshener and can cause corrosion of furnaces and vents Avoid using such products in the combustion air sup ply Furnace use during construction of the building could cause the furnace to be exposed to halogen compounds causing prema ture failure of the furnace or venting system due to corrosion 441 01 2613 02 Vent dampers on any appliance connected to the common vent can cause condensation and corrosion in the venting system Do not use vent dampers on appliances common vented with this fur nace 8 Gas Supply and Piping WARNING CARBON MONOXIDE POISONING FIRE AND EXPLOSION HAZARD Failure to follow safety warnings exactly could result in serious injury death
17. lation of these air to the unit Air must be provided for proper combustion and instructions ventilation of flue gases 441 01 2613 02 Frozen Water Pipe Hazard Aa _ WARNING FROZEN AND BURST WATER PIPE HAZARD Failure to protect against the risk of freezing could 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 furnace 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 2 Installation a WARNING CARBON MONOXIDE POISONING HAZARD Failure to properly vent this furnace or other appliances could result in death or personal injury If this furnace is replacing a previously common vented furnace it may be necessary to resize the existing vent system to prevent oversizing problems for the other remaining appliances s See Venting and Combustion Air Checkin the 5 Gas Vent Installation section of this instruction Location and Clearances If furnace is a replacement it is usually best to install the furnace where the old one was Choose the location or evaluate
18. seconds If desired the fan OFF delay can be reset to obtain the longest delay times while still maintaining comfort levels See Furnace Wiring Diagram Furnace Control Fuse The 24V circuit contains a 5 amp automotive type fuse located on furnace control See Figure 20 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 Figure 20 Control Connections 25 24 98 10 Ductwork and Filter Upflow Horizontal 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 Duct Connections This furnace may be installed in only a bottom or side return air duct application Return air duct connections through the back of the furnace is NOT permitted Upflow ONLY Side return air duct connections can be made by cutting out the embossed area shown in Figure 21 A plugged hole is provided at each furnace side duct location to help start cut ting the opening Side duct connections are NOT permitted in hori zontal flow applications Upflow and Horizontal Flow Bottom return air duct connec tions can be made by removing the knockout panel in the furnace base Do NOT remove knock out except for a bottom retu
19. 00 000 80 000 30 60 115 60 100 000 80 000 35 65 115 60 100 000 80 000 30 60 115 60 125 000 100 000 30 60 115 60 125 000 100 000 30 60 115 60 Rating Plate Amps 9 7 9 2 9 7 8 9 11 7 13 2 11 7 13 2 Gas Type Nat LP Nat LP Nat Nat LP Nat LP Nat LP Nat LP Nat LP Transformer Size VA T stat Heat Anticipator Gas amp Ignition Std Main Orifices No Size Gas Valve Honeywell Regulation Type Manifold Press Inch s WC 2142 21454 3 42 3 54 35 10 0 35 10 0 3454 4 442 4 54 4 42 810 0 3 5 10 0 3 5 40 VR8205S SNAP 4H 42 4154 5 42 5 54 35 10 0 35 10 0 Ignition Type Series Combustion Flue Outlet Size Inches Limits amp Controls Thermal Sensor F Limit Control 300 See Parts List 300 See Parts List 300 See Parts List Hot Surface 300 300 See Parts List See Parts List 300 See Parts List 300 See Parts List 300 See Parts List Std Pressure Sw Part No Press Close Press Open 1013529 0 69 0 59 1013529 0 69 0 59 1013529 0 69 0 59 1013529 1013529 0 69 0 69 0 59 0 59 1013529 0 69 0 59 1013529 0 69 0 59 1013529 0 69 0 59 Furnace Control Type Furnace Control On Timed secs Off Blower Data Type amp Size Motor Type H p Cap Mfd Volts Filter Type 600 FP
20. 1 1 65 441 01 2613 02 Replacement Parts N8MPL natural cas Models N8MPLO50B12B1 NSMPLO75B12B1 N8MPLO75F16B1 NSMPL100F 20B1 N8MPL100J20B1 N8MPL100J22B1 N8MPL125J20B1 N8MPL125J22B1 Replacement part supplied will be current active part For parts not listed consult place of purchase Description Part Functional Number Panel Top 1013995 1013996 1013997 Box Junction 1172860 Cover Junction box 1012350 Partition Blower 1014009 1014010 1014011 Housing Blower 1172885 1172969 Hanger Blower 1012328 Panel Blower Cutoff 721020013 721020008 Clamp Capacitor 1170643 1014315 Bracket Control Mounting 1172845 Door Blower 1172991 1172993 1172995 Bracket Door 1172231 1172232 1172233 Door Louver 1172603 1173000 1173001 Manifold Gas 1012787 1012788 1012789 1012790 Bracket Manifold Support 1012377 Top Burner Box 1013702 1013703 1013704 Bracket Burner Box Sides 1012532 Baffle Burner Box 1012338 1012339 1012340 Bottom Burner Box 1172847 1172848 1172849 1172850 Collector Box 1013010 1012735 1012736 1012739 1012738 1012740 Gasket Combustion Blower 1013540 441 01 2613 02 Replacement Parts N8MPL natural cas Models N8MPLO50B12B1 NSMPLO75B12B1 N8MPLO75F16B1 NSMPL100F 20B1 N8MPL100J20B1 N8SMPL100J22B1 N8MPL125J20B1 N8MPL125J22B1 Replacement part supplied will be current active part For parts not listed consult place of purchase Descrip
21. 11 Heil Arco 1173012 Heil Arco 1173013 Comfortmaker Only 1173008 Comfortmaker Only 1173009 Comfortmaker Only 1173010 Tempstar Only 1173014 Tempstar Only 1173015 Tempstar Only 1173016 Bracket Door 1172231 1172232 1172233 Door Louver Heil Arco 1173005 Heil Arco 1173006 Heil Arco 1173007 Comfortmaker Only 1173002 Comfortmaker Only 1173003 Comfortmaker Only 1173004 Tempstar Only 1013609 Tempstar Only 1013610 Tempstar Only 1013611 Manifold Gas 1013478 1013479 1013480 1013481 Bracket Manifold Support 1012377 Top Burner Box 1013705 1013015 1013016 Bracket Burner Box Sides 1012532 Baffle Burner Box 1012338 1012339 1012340 Bottom Burner Box 1172847 1172848 1172849 1172850 441 01 2613 02 Replacement Parts 8MPL naturai cas Models 8MPLO50B12B1 8MPLO75B12B1 8MPLO75F16B1 8MPL100F20B1 8MPL100J20B1 8MPL125J20B1 Replacement part supplied will be current active part For parts not listed consult place of purchase Description Part Functional Number Collector Box 1014510 1014511 1014509 1014512 Gasket Combustion Blower 1013540 Partition Front Ht Exchanger 1013543 1013521 1013545 1013546 1013547 1013548 Gaskets Heat Exchanger 1013991 1013992 1013993 1013994 Tubing Silicone 1172195 1172196 Baffle Nox 1014019 Sughtglass 1172768 PART NOT ILLUSTRATED Fuse 5 Amp 1083348 Harness Wire 1172813 Door Screw 1014488 Door Screw Grommet 11
22. 2 000 65 Sq In Horizontal Indoor Combustion Air A WARNIN G Standard and Known Air Infiltration Rate Methods CARBON MONOXIDE POISONING HAZARD NFPA amp AGA Failure to supply adequate combustion air could Indoor air is permitted for combustion and ventilation if the result in death or personal injury Standard or Known Air Infiltration Rate Method is used 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 to supplement air infiltration for proper combustion and ventilation of flue gases 441 01 2613 02 The Standard Method may be used if the space has no less vol ume than 50 cubic feet per 1 000 BTUH of the maximum input rat ings for all gas appliances installed in the space The standard method permits indoor air to be used for combustion and ventila tion 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 Other Than Fan Assisted Total 1 000 s Btuh 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 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
23. 201100 Gas Conversion Kits NattoLP NAHAOO1LP 1172958 LP to Nat NAHAQO1NG 1172960 Must be ordered from Service Parts 441 01 2613 02 Replacement Parts N8MPL natural cas Models N8MPLO50B12B1 NSMPLO75B12B1 N8MPLO75F16B1 NSMPL100F 20B1 N8MPL100J22B1 N8MPL125J20B1 N8MPL125J22B1 Replacement part supplied will be current active part For parts not listed consult place of purchase Key Description Part eee No Functional Number 050B12B1 075B12B1 075F16B1 100F20B1 100J22B1 125J20B1 125J22B1 1 Heat Exchanger 1014322 1 1014323 1014324 1014325 1014326 1014327 Switch Pressure 1013529 Wheel Blower 1013011 1011420 Mount Motor kit 1014824 1014823 1014822 Mtr Blower 1 115 12 CCW 1172490 1 115 1 2 CCW 1172487 1 115 1 3 CCW 1172488 1 115 3 4 CCW 1172489 Capacitor 7 5 Mfd 370V 1171728 10 Mfd 370V 1171729 40 MFD 370V 1171982 Transformer 1172810 Control 1172550 Switch Interlock 1171981 Burner Assembly 1172884 1172965 1172966 1172967 Flame Sensor 1172827 Ignitor 1172533 Orifice Burner 42 1011351 Valve Gas 1172821 Switch Limit Rollout 1013102 Switch Limit Main 1008417 1320362 34335000 Blower Combustion 1013517 Inducer 1014433 See Table below for bellyband location on motor Bellyband Location on Motor Model N8MPL A in 050B12B1 1 38 075B12B1 1 38 O75F16B1 1 38 100F 20B1 1 81 100J22B1 1 65 125J20B1 181 125J22B
24. 27 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 Wire and circuit breaker sizing shall be based onthe ampacity of the furnace electrical components plus the amps for all installed accessories 1 0 amps total for EAC and HUM Ampacity can be determined by using the NEC or CEC NOTE Furnace will not have normal operation if line polarity is re versed Check ALL field and control connections prior to opera tion Furnace must be installed so the electrical components are pro tected from water and connected to its own separate circuit J Box Relocation N8MPN L Models The J boxis installed in blower compartment 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 and discard two screws holding J box to casing 3 Move large hole plug from right to left J box location 4 Move J box to alternate location and attach using two self tapping screws from bag 5 Apply two hole plugs from bag at left J box location 6 Position all wires away from sharp edges and moving parts Do not pinch J box wires
25. 3 17 Horizontal If you purchased a multi position furnace it can be installed hori zontally in an attic basement crawl space alcove or suspended from a ceiling in a basement or utility room in either a right or left airflow position see Figure 4 Horizontally installed furnaces may be vented out the top of the unit or out the side facing up See Side venting for instructions to rotate the vent to the side The minimum clearances to combustibles MUST be maintained between the furnace and adjacent construction as shown in Figure 1 and Figure 2 ONLY the corner of the cabinet is allowed to contact the rafters as shown in Figure 4 All other clearances MUST be observed as shown in Figure 1 and Figure 2 Typical Horizontal Installation RETURN OPTIONAL VENT LOCATION 25 23 18a If the furnace is to be suspended from the floor joists ina basement or 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 bottom side 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 If the furnace is to beinstalled at ground levelin a crawl space con sult local codes A concrete pad 1 to 2 thick is recommended Twenty four inches 24 is required between the front of the fur nace and adjacent construction
26. 52 Orifice 45 1011353 Orifice 54 1011376 Orifice 55 1011354 Orifice 56 1011355 High Altitude Air Pressure Switch The factory installed pressure switch need NOT be changed for any furnace installations from sea level up to and including 8 000 altitude Changing Orifices 1 After disconnecting power and gas supply to the furnace re move the burner compartment door exposing the burner compartment 2 Disconnect gas line from gas valve so manifold can be re moved 3 Disconnect wiring at gas valve Be sure to note the proper location of all electrical wiring before being disconnected 4 Remove the four 4 screws holding the manifold and gas valve to the manifold supports Do not discard any screws See Figure 35 Some Models may vary 25 25 00 Carefully remove the manifold assembly Remove the orifices from the manifold and replace them with proper sized orifices See Figure 36 Tighten orifices so they are seated and gas tight See Figure 36 Reassemble all parts in reverse order as removed Be sure to engage the main burner orifices in the proper openings inthe 441 01 2613 02 burners 9 After reassembling turn gas on and check all joints for gas leaks using a soapy solution All leaks must be repaired im mediately Measure from face of orifice to the b side of the manifold 1 5 29 3 11 mm os 1 21 1 11 LP Conversion An accessory kit shall be used to con
27. 65 1172966 1172967 1172968 Flame Sensor 1172827 Ignitor 1172533 Orifice Burner 42 1011351 Valve Gas 1172821 Switch Limit Rollout 1013102 Switch Limit Main 1008417 1320362 34335000 1065294 Blower Combustion Inducer 1014433 See Table below for bellyband location on motor on Motor Model 8MPN 441 01 2613 02 Replacement Parts 8MPN wawrai Gas Models 8MPN050B12B1 8MPNO75B12B1 8MPNO75F16B1 8MPN100F14B1 8MPN100F 20B1 8MPN100J20B1 8MPN125J20B1 8MPN150J20B1 Replacement part supplied will be current active part For parts not listed consult place of purchase Description Part Functional Number Panel Top 1013982 1013983 1013984 Box Junction 1172860 Cover Junction box 1012350 Partition Blower 1014009 1014010 1014011 1014013 Housing Blower 1172885 1172969 1172970 Hanger Blower 1012328 Panel Blower Cutoff 721020013 721020008 721020015 Clamp Capacitor 1170643 1014315 Bracket Control Mounting 1172845 Door Blower Heil Arco 1173011 Heil Arco 1173012 Heil Arco 1173013 Comfortmaker Only 1173008 Comfortmaker Only 1173009 Comfortmaker Only 1173010 Tempstar Only 1173014 Tempstar Only 1173015 Tempstar Only 1173016 Bracket Door 1172231 1172232 1172233 1172266 Door Louver Heil Arco 1173005 Heil Arco 1173006 Heil Arco 1173007 Comfortmaker Only 1173002 Comfortmaker Only 1173003 Comfortmaker Only 1173004 Tempstar
28. 7 seconds then begins to warm up again The igniter 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 40 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 stored status code Do not remove power or blower doo
29. 71990 Manual Installation amp Tech 44101261302 Manual Users 44102201100 Gas Conversion Kits NattoLP NAHAOO1LP 1172958 LP to Nat NAHAOO1NG 1172960 Must be ordered from Service Parts 441 01 2613 02
30. 996 1013997 Box Junction 1172860 Cover Junction box 1012350 Partition Blower 1014009 1014010 1014011 Housing Blower 1172885 1172969 Hanger Blower 1012328 Panel Blower Cutoff 721020013 721020008 Clamp Capacitor 1170643 1014315 Bracket Control Mounting 1172845 Door Blower 1172991 1172993 1172995 Bracket Door 1172231 1172232 1172233 Door Louver 1172603 1173000 1173001 Manifold Gas 1012787 1012788 1012789 1012790 Bracket Manifold Support 1012377 Top Burner Box 1014480 1014481 1014482 Bracket Burner Box Sides 1012532 Baffle Burner Box 1012338 1012339 1012340 Bottom Burner Box 1172847 1172848 1172849 1172850 Collector Box 1013010 1012735 1012736 1012739 1012738 1012740 Gasket Combustion Blower 1013540 441 01 2613 02 Replacement Parts N8MPN Naural cas Models N8SMPN050B12B1 N8MPN075B12B1 N8MPNO75F16B1 NSMPN100F14B1 N8SMPN100F 20B1 NSMPN100J22B1 N8MPN125J20B1 NSMPN125J22B1 Replacement part supplied will be current active part For parts not listed consult place of purchase Description Part Non Functional Parts Number Partition Frt Ht Exchanger 1013780 1013781 1013782 1013783 1013784 1013785 Gaskets Heat Exchanger 1013991 1013992 1013993 1013994 Tubing Silicone 1172192 Sightglass 1172768 Parts Not Illustrated Fuse 5 Amp 1083348 Harness Wire 1172811 1172812 Manual Installation amp Tech 44101261302 Manual Users 44102
31. B1 NSMPN100F14B1 N8SMPN100F 20B1 NSMPN100J22B1 N8MPN125J20B1 NSMPN125J22B1 Replacement part supplied will be current active part For parts not listed consult place of purchase Description Part Functional Parts Number Heat Exchanger 1013623 1013624 1013625 1013626 1013627 1013628 Switch Pressure 1013529 Wheel Blower 1013011 1011420 Mount Motor kit 1014824 1014823 1014822 Mtr Blor 1 115 1 2 CCW 1172490 1 115 1 2 CCW 1172487 1 115 1 2 CCW 1172488 1 115 3 4 CCW 1172489 Capacitor 7 5 Mfd 370V 1171728 10 Mfd 370V 1171729 40 Mfd 370V 1171982 Transformer 1172810 Control 1172550 Switch Interlock 1171981 Burner Assembly 1172884 1172965 1172966 1172967 Flame Sensor 1172827 ignitor 1172533 Orifice Burner 42 1011351 Valve Gas 1172821 Switch Limit Rollout 1013102 Switch Limit Main 1008417 1320362 34335000 Blower Combustion 1014433 Inducer 1013517 See Table below for bellyband location on motor on Motor Rin Tae ra K 100F14B1 1 38 100F20B1 1 81 100J22B1 1 65 125J20B1 1 81 125J22B1 1 65 441 01 2613 02 Replacement Parts N8MPN nawra cas Models N8SMPN050B12B1 N8MPN075B12B1 N8MPNO75F16B1 NSMPN100F14B1 N8SMPN100F 20B1 NSMPN100J22B1 N8MPN125J20B1 NSMPN125J22B1 Replacement part supplied will be current active part For parts not listed consult place of purchase Description Part Non Functional Parts Number Panel Top 1013995 1013
32. Installation 80 Single Stage NOMPN amp NamPL Cate gor y I Furnace Denotes Brands C H T See section 5 for Category I definition SAFETY REQUIREMENTS Recognize safety information This is the safety alert ba When you see this symbol on the furnace and in instruction manuals be alert to the potential for personal injury Understand the signal words DANGER WARNING or CAUTION These words are used with the safety alert 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 CAUTIONis 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 at tached to or shipped with the furnace and other safety precautions that may apply Follow all safety codes In the United States follow all safety codes i
33. M Filter Size Not Supplied 1600 CFM and over Min Cool Cap Tons Max Cool Cap Tons Gas Conversion Kits 11 8 PSCIMp 10 370 Washable 14x25x1 1 5 3 NattoLP NAHAOO1LP 1172958 LP to Nat NAHAOO1NG 1172960 Must be ordered from Service Parts 11 8 PSCI 7 51370 Washable 14x25x1 1 5 3 11 10 PSC h 10 370 Washable 16x25x1 16x25x1 2 3 4 Integrated 30 60 100 140 180 11 10 PSC 7 51370 Washable 16x25x1 11 10 PSCI 10 370 Washable 16x25x1 2 16x25x1 2 3 5 11 10 PSCRI 40 370 Washable 20x25x1 16x25x1 2 3 5 5 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE 11 10 PSCI 10 370 Washable 20x25x1 16x25x1 2 3 5 11 10 PSC 40 370 Washable 20x25x1 16x25x1 2 3 5 5 441 01 2613 02 Manufacturers Number Mfr No See Rating Plate ALL Models N8MPL N8MPL 050B12 N8MPL 075B12 N8MPL 075F 16 N8MPL 100F20 N8MPL 100522 N8MPL 125J20 N8MPL 125522 General Input Btuh Output Btuh Temp Rise F Electrical Volts Hz 115 60 115 60 115 60 115 60 115 60 Nat LP Nat LP Nat LP Rating Plate Amps 9 7 Nat LP Gas Type 50 000 40 000 35 65 75 000 60 000 35 65 75 000 60 000 25 55 100 000 80 000 35 65 100 000 80 000 30 60 125 000 100 000 30 60 115 60 11 7 125 000 100 000 30 60 115 60 Transformer Size VA T stat Heat Anticipator Gas amp Ignition Std
34. Main Orifices No Size Gas Valve Honeywell Regulation Type Manifold Press Inch s WC Ignition Type Series Hot Surface La re ae ee ee eee Combustion Flue Outlet Size Inches Limits amp Controls Thermal Sensor F Limit Control Std Pressure Sw Part No Press Close Press Open Furnace Control Type Furnace Control On Timed secs Off Blower Data Type amp Size Motor Type H p Cap Mfd Volts Filter Type 600 FPM Filter Size Not Supplied 1600 CFM and over Min Cool Cap Tons Max Cool Cap Tons Gas Conversion Kits Natto LP NAHAOO1LP 1172958 LP to Nat Must be ordered from Service Parts 441 01 2613 02 NAHAOO1NG 1172960 4 300 See Parts List 1013529 0 69 0 59 11 8 PSC 1 10 370 Washable 14x25x1 1 5 3 300 See Parts List 1013529 0 69 0 59 11 8 PSC h 7 5 370 Washable 14x25x1 1 5 3 300 See Parts List 1013529 0 69 0 59 11 10 PSCI 10 370 Washable 16x25x1 16x25x1 2 3 4 300 See Parts List 1013529 0 69 0 59 Integrated 30 60 100 140 180 11 10 PSC 1 10 370 Washable 16x25x1 16x25x1 2 3 5 300 See Parts List 1013529 0 69 0 59 11 10 PSCAiq 40 370 Washable 20x25x1 16x25x1 2 3 55 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE 300 See Parts List 1013529 0 69 0 59 11 10 PSCI 10 370 Washable 20x25x1 16x25x1 2 3 5 300 See
35. Only 1013609 Tempstar Only 1013610 Tempstar Only 1013611 Manifold Gas 1013478 1013479 1013480 1013481 1013482 Bracket Manifold Support 1012377 Top Burner Box 1013705 1013015 1013016 1013859 Bracket Burner Box Sides 1012532 Baffle Burner Box 1012338 1012339 1012340 1013533 441 01 2613 02 Replacement Parts 8MPN wawrai Gas Models 8MPN050B12B1 8MPNO75B12B1 8MPNO75F16B1 8MPN100F14B1 8MPN100F 20B1 8MPN100J20B1 8MPN125J20B1 8MPN150J20B1 Replacement part supplied will be current active part For parts not listed consult place of purchase Description Part Functional Number Bottom Burner Box 1172847 1172848 1172849 1172850 1172851 Collector Box 1014510 1014511 1014509 1014512 1013486 Gasket Combustion Blower 1013540 Partition Front Ht Exchanger 1013543 1013521 1013545 1013546 1013547 1013548 1013549 Gaskets Heat Exchanger 1013991 1013992 1013993 1013994 1012546 Tubing Silicone 1172195 1172196 Sightglass 1172768 PART NOT ILLUSTRATED Fuse 5 Amp 1083348 Harness Wire 1172813 Door Screw 1014488 Door Screw Grommet 1171990 Manual Installation amp Tech 44101261302 Manual Users 44102201100 441 01 2613 02 Replacement Parts 8MPL naturai cas Models 8MPLO50B12B1 8MPLO75B12B1 8MPLO75F16B1 8MPL100F20B1 8MPL100J20B1 8MPL125J20B1 Replacement part supplied will be current active part For parts not listed consult place of purchase
36. Type 50 000 40 000 35 65 75 000 60 000 30 60 75 000 60 000 30 60 100 000 81 000 35 65 100 000 81 000 35 65 115 60 12 0 125 000 101 000 35 65 115 60 Transformer Size VA T stat Heat Anticipator Gas amp Ignition Std Main Orifices No Size Gas Valve Honeywell Regulation Type Manifold Press Inch s WC Ignition Type Combustion Limits amp Controls Thermal Sensor F Limit Control Auxiliary Limit F SNAP VR 8205S 300 See Parts List 130 300 See Parts List 130 300 See Parts List 130 300 See Parts List 130 300 See Parts List 130 300 See Parts List 130 Std Pressure Sw Part No Press Close Press Open 1013529 0 69 0 59 1013529 0 69 0 59 1013529 0 69 0 59 1013529 0 69 0 59 1013529 0 69 0 59 1013529 0 69 0 59 Furnace Control Type Furnace Control On delay Timed secs Off delay Blower Data Type amp Size Motor Amps Rpm Motor Type H p Cap Mfd Volts Filter Type Filter Size Not Supplied 1600 CFM and over Min Cool Cap Tons Max Cool Cap Tons Gas Conversion Kits NattoLP NAHAOQO1LP 1172958 LP to Nat NAHAOO1NG 1172960 Must be ordered from Service Parts 441 01 2613 02 11 8 10 3 1100 PSCI 10 370 Washable 14x25x1 1 5 3 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE 11 8 8 1050 PSC h 7 5 370 Washable 14x25x1 1 5 3
37. ace are rated at a maximum of 600 FPM air velocity and sized for the furnace s airflow rate Replacement filters must be of equivalent type size and rating except as described below Disposable low velocity filters may be used to replace washable high velocity filters providing they are sized for 300 FPM or less e The furnaces with 1600 or less CFM rating use a 16 x 25 high velocity filter On these models the filter may be mounted internally for bottom return or a filter and rack may be mounted externally for bottom return e The furnaces with greater than 1600 CFM require that both left and right side returns are used Two side return filters and racks are required Filter racks must be mounted exter nally See Figure 24 e f return air must be on one side only an optional 20 x 25 filter standoff rack kitcan be used See Figure 22 For bot tomreturn aninternal filter can be used or a filter rack kitcan be mounted externally e See pages 40 amp 46 Circulator Air Blower Data for additional data NOTE The 20 x 25 standoff side filter rack gives more filter area but does not provide more air See Figure 22 To achieve 2000 CFM 2 side returns are still needed See Figure 24 NOTE Disposable low velocity filters may be replaced with washable high velocity filters Washable high velocity filters can be replaced ONLY with same type and size filter unless low veloc ity filters meet the minimum size areas for
38. ace discharge Cool air passing over heat exchanger could cause conden sate to form resulting in heat exchanger failure e When the furnace is used witha cooling unit the furnace shall be installed parallel with or on the upstream side of the cooling unit to avoid condensation in the heating element e Witha parallel flow arrangement the dampers or other means used to control flow of air shall be adequate to prevent chilled air from entering the furnace Chilled air going through the fur nace could cause condensation and shorten furnace life Dampers purchased locally can be either automatic or manual Manually or automatically operated dampers MUST be equipped with a means to prevent furnace and air condi tioning operation unless damperis inthe full heat or cool posi tion e Installation of locking type dampers is recommended in all branches or in individual ducts to balance system s air flows e Non combustible flexible duct connectors are recom mended for return and supply connections to furnace e Ifairreturn grille is located close to the fan inlet install at least one 90 air turn between fan and inlet grille to reduce noise e Ductwork installed in attic or exposed to outside temperatures requires a minimum of 2 of insulation with outdoor type vapor barrier e Ductwork installed in an indoor unconditioned space requires a minimum of 1 of insulation with indoor type vapor barrier Inspectio
39. and or property damage Models designated for Natural Gas are to be used with Natural Gas ONLY unless properly converted to use with LP gas Gas Supply Requirements Use only the Type of gas approved for this furnace See rating plate for approved gas type e Gas input must not exceed the rated input shown on the rating plate Overfiring will result in failure of heat exchanger and cause dangerous operation e Donotallowminimum supply pressure to vary downward Do ing so will decrease input to furnace Refer to Table 3 for gas supply Refer to Table 6 and Table 7 for manifold pressures Supply Pressure Recommended Max wn O ef ef ae Gas Type Figure 12 Typical Gas Piping N8MP Drip Leg and Union Union should be outside the cabinet Manual shut off valve MUST be upstream of dripleg union and furnace Use elbows and 3 pipe nipple to connect valve to piping when using right side gas pipe entry LP Low pressure Gas Piping Requirements NOTE The gas supply line must be installed by a qualified service technician in accordance with all building codes NOTE In the state of Massachusetts a Gas supply connections MUST be performed by a li censed plumber or gas fitter b When flexible connectors are used the maximum length shall not exceed 36 915 mm c When lever handle type manual equipment shutoff valves are used they shall be T handle valves d Theuse of copper tub
40. ation Above 2000 Altitude WARNING FIRE EXPLOSION CARBON MONOXIDE POISONING HAZARD Failure to follow these instructions exactly could result in death personal injury and or property dam age This high altitude gas conversion shall be done by a qualified service agency in accordance with the Manufacturer s instructions and all applicable codes and requirements or in the absence of local codes the applicable national codes These furnace may be used at full input rating when installed at al titudes upto 2000 When installed above 2000 the input must be decreased 2 natural or 4 LP for each 1000 above sea level inthe USA In Canada the input rating must be derated 5 natu ral or 10 LP for each 1000 above sea level This may be ac complished by a simple adjustment of manifold pressure or an orifice change or a combination of a pressure adjustment and an orifice change The changes required depend on the installation altitude and the heating value of the fuel Table 6 amp Table 7 show the proper furnace manifold pressure and gas orifice size to achieve proper performance based on elevation above sea level for both natural gas and propane gas To use the natural gas table first consult your local gas utility for the heating value of the gas supply Select the heating value in the first column and follow across the table until the appropriate eleva tion for the installationis reached The value in th
41. cation of fan assisted fur naces when vented horizontally with sidewall termination a power venter is REQUIRED to maintain a negative pressure in the vent ing system In the U S Per the NFGC a listed power venter may be used when approved by the authority having jurisdiction In Canada Only power venters approved by the appliance manufacturer and where allowed by the authority having jurisdic tion may be used Please consult the Fields Controls Co or Tjernlund Products Inc for power venters certified for use with our furnaces 441 01 2613 02 Vent Termination Venting Through a Non Combustible and Combustible Wall Consult External Power Venter manufacturer instructions Select the power venter to match the Btuh input of the furnace be ing vented Follow all of the Power Venter manufacturer s installa tion requirements included with the power venter for e venting installation e vent terminal location preventing blockage by snow e protecting building materials from degradation by flue gases e see Figure 10 for required vent termination NOTE It is the responsibility of the installer to properly terminate the vent and provide adequate shielding This is essential in order to avoid water ice damage to building shrubs and walkways Figure 10 Other than Direct Vent Termination Clearance cp o 1 LTT LI LEELA Je ty JIII ILEN A 4i PTTETITILITIDNTD A LD CUA z
42. d However abuse and or improper use can shorten the life of the unit and create hazards for you the owner The information contained in this manual is intended for use by a qualified service agency that is experienced in such work is familiar with all eee 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 inctaamenic sources of carbon monoxide in a building or dwelling The sources could be gas fired clothes dryers gas cooking stoves water heaters furnaces gas fired fireplaces wood NOTE This furnace is design certified by the CSA International fireplaces SOUIN formerly AGA and CGA for installation in the United States and Carbon monoxide can cause serious bodily injury and or Canada Refer to the appropriate codes along with this manual death Carbon monoxide or CO is a colorless and odorless gas produced when fuel is not burned completely or when the for proper installation K NA flame does not receive sufficient oxygen Use only the Type of gas approved for this furnace see Therefore to help alert people of potentially dangerous carbon Rating Plate on unit Overfiring will result in failure of heat monoxide levels you should have a commercially available exchanger and cause dangerous operation Furnaces carbon monoxide alarm that is listed by
43. d ad Bari Biar AINI NINI NI N N N j on Manifold f Orifice Manifold f Orifice Manifold Orifice Manifold Pressure Pressure No Pressure No Pressure Se ee ea 2 i a 3 7 3 4 Par 36 7 5 3 1 soe 8 6 5 4 6 wj ow A D wj fj wj w Oo lN ej amp EA I e an Pool WP N N N wj of so 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 Table 7 LPG or PROPANE GAS MANIFOLD PRESSURE w c HEATING VALUE at ALTITUDE BTU CU FT 7500 MEAN ELEVATION FEET ABOVE SEA LEVEL 0 to 2001 to 3001 to 4001 to 5001 to 6001 to 7001 to 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 6 and Table 7 The burner orifice part nos are as follows Orifice 41 1096942 Orifice 42 1011351 Orifice 43 1011377 Orifice 44 10113
44. d be only ONE motor lead going to the Heat and Cont terminals A 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 e Before servicing disconnect all electrical power to furnace When servicing controls label all wires prior to disconnecting Reconnect wires correctly Verify proper operation after servicing 441 01 2613 02 14 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 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 e 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 case see NOTE 2 NOTE 2 Heating or Cooling requests receive
45. d during a Fan request cause the fan speed to change to the appropriate heat or cool speed after the Fanon Delay time expires The fan returns 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 e 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 FCB will delay blower operation for the 30 seconds timed from the opening of the gas valve W signal removed from FCB e The gas valve de energizes and the main burners go out The inducer runs for a 15 second postpurge period e The fan stays at Heat speed The fan de energiz
46. e box at the inter section of the altitude and heating value provides not only the manifold pressure but also the orifice size Inthe natural gas tables the factoy shipped orifice size is in bold 42 Other sizes must be obtained from service parts High Altitude Input Rate Nameplate Sea Level Input Rate x Multiplier USA High Altitude Multiplier 3 Elevation Natural Gas 2001 3000 0 95 3001 4000 0 93 4001 5000 0 91 5001 6000 0 89 6001 7000 0 87 7001 8000 0 85 Based on mid range of elevation 441 01 2613 02 MANIFOLD PRESSURE AND ORIFICE SIZE FOR HIGH ALTITUDE APPLICATIONS Table 6 NATURAL GAS MANIFOLD PRESSURE w c MEAN ELEVATION FEET ABOVE SEA LEVEL HEATING 0 to 2001 to 3001 to 4001 to 5001 to 6001 to 7001 to VALUE 2000 3000 4000 5000 6000 7000 8000 700 725 750 ow ee Q Ww ee Ni oT w Sz 41 E a7 3 w Q j so wit Rcd card Bd a Ww Ny Mey j e w gt w w w wj wj Go ops oO N N Ge Ol oj w N N an 6 3 7 3 5 3 3 3 2 3 0 2 7 2 5 33 pe ps pe A o f 38 at ALTITUDE Orifice Manifold Orifice Manifold Orifice Manifold BTU CU FT No Pressure No Pressure Pressure 3 3 3 e a ey 2 efe o jefe 2 2 jefo je 2 ee Oe ee fe ia _ i EEE poet EA peel E fe el E E g ee li p gt Ea Bd Bed Bead ad ad Ba
47. e furnace Typical Downflow Installation RETURN AIR See side venting for venter rotation Combustible floor base outlet flange adapter Vent Shield GAS SUPPLY Kit MUST BE OPPOSITE VENT DISCHARGE SIDE This furnace is shipped from the factory with the venter assembly in an upflow configurations top vent The venter assembly can easily be rotated to a side vent configurations for use in upflow horizontal flow or downflow application When using a side vent configuration side outlet instead of top outlet it may be necessary to relocate the pressure switch to the alternate position onthe opposite side of the top panel Two screw holes are provided at the alternate position Route the pressure switch tubing so the tubing is not kinked and not touching the hot collector box venter housing or motor It may be necessary to shorten the length of the tubing to properly route the tubing and eliminate kinks Rotating the Venter Assembly 1 If gas and electrical power have already been connected to unit shut off gas and remove power from unit Unscrew screws on burner compartment door and remove burner compartment door see Figure 6 2 Disconnect power leads to the venter motor and hose to pres sure switch Remove three 3 or four 4 screws which secure the venter to the collector box see Figure 7 3 Cut webbing with a pair of sn
48. e furnaces are CSA design certified for use in exterior clay tile lined masonry chimneys with a factory accessory Chimney Adapter Kit Refer to the furnace rating plate for correct kit usage The Chimney Adapter Kits are listed alternative venting designs and are for use with ONLY furnaces having a Chimney Adapter Kit number marked on the furnace rating plate Figure 11 CHIMNEY INSPECTION CHART For additionalrequirements refer to the National Fuel Gas Code NFPA 54 ANSI Z223 1 2002 and ANSI NFPA 211 2003 Chimneys Fireplaces Vents and Solid Fuel Burning Appliances in the U S A or to the Canadian Installation Code CSA B149 1 05 in Canada Crown condition Missing mortar or brick ls Chimney properly lined with clay tile liner Is liner and top seal in good condition Debris in cleanout Mortar tile metal vent fuel oil residue Clay tile misalignment missing sections gaps Condensate drainage at bottom of chimney Chimney exposed to outdoors below roof line Chimney is acceptable for use Rebuild crown Repair liner or top seal Reline or reline chimney as necessary Mortar or tile debris Remove metal vent or liner Is Chimney lined with properly sized listed liner or Type B vent Is Chimney to be dedicated to a single furnace Consult Part B of chimney adapter venting instructions for application suitability Remove mortar and tile debris Suitable Install chim
49. e instructions Deter mine that there is no blockage or restriction leakage cor rosion and other deficiencies which could cause an unsafe condition 3 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 4 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 6 Follow the lighting instructions Place the appliance being inspected into operation Adjust the thermostat so appliance is operating continuously 7 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 9 8 If improper venting is observed during any of the above tests the venting system 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 9 After it has been determined that each appliance con nected 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 Vent Pipe Draft Hood T
50. egory I connector or pipe as per mitted by e the National Fuel Gas Code Code NFGC ANSI Z223 1 2002 NFPA 54 2002 sections 10 and 13 vent ing requirements in the United States or e the National Standard of Canada Natural Gas and Pro pane Installation Code NSCNGPIC CSA B149 1 05 section 7 and appendix C venting requirements in Cana da 4 Push the vent connector onto the furnace flue collar of the venter assembly until it touches the bead at least 5 8 overlap and fasten with at least two field supplied corrosion resist ant sheet metal screws located at least 140 apart 5 Keep vertical Category I vent pipe or vent connector runs as short and direct as possible 6 Vertical outdoor runs of Type B or ANY single wall vent pipe below the roof line are NOT permitted 7 Slope all horizontal runs up from furnace to the vent terminal a minimum of 1 4 per foot 21 mm m 8 Rigidly support all horizontal portions of the venting system ev ery 6 or less using proper clamps and metal straps to prevent sagging and ensure there is no movement after installation 9 Check existing gas vent or chimney to ensure they meet clear ances and local codes See Figure 1 10 The furnace MUST be connected to a factory built chimney or vent complying with a recognized standard or a masonry or concrete chimney lined with a lining material acceptable to the authority having jurisdiction Venting into an unlined ma sonry chi
51. er blower speed will lower the temperature rise A lower blower speed will increase the temperature rise 5 Remove the jumper wire after the adjustments are complete Changing Blower Speed A WARNING ELECTRICAL SHOCK HAZARD Failure to disconnect power could result in death personal injury and or component damage Turn OFF power to furnace before changing speed taps NOTE The speed taps that the manufacturer sets at the factory for this furnace 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 predict the static pressure that will be applied to the furnace itis the responsibility of the installer dealer contractor to select the proper speed tap leads for the application when the furnace is installed If it is necessary to change speeds refer to steps below 1 Refer to Furnace Wiring Diagram for location of the heating and cooling speed taps located on the electronic furnace con trol as well as location of unused blower motor speed leads Use the chart Table 8 to determine the blower motor speed settings Table 8 Wire Color Black Orange Blower Speed Chart Motor Speed 2 Changethe heat or cool blower motor speed by removing the motor speed lead from the Heat or Cool terminal and re place it with the desired motor speed lead from the M1 or M2 location Connect the wire previously removed from the
52. es 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 ona callforheat 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 441 01 2613 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 e 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 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 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 continues flashing error code 6 The igniter stays off for 1
53. exactly could exactly could result in serious result in serious injury death and or property 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 Portions of the text and tables are reprinted from NFPA 54 ANSI Z223 1 2002 with permission of National Fire Protection Association Quincy MA 02269 and American Gas Association Washington DC 20001 This reprinted material is not the complete and official position of the NFPA or ANSI on the referenced subject which is represented only by the standard in its entirety Printed in U S A 11 10 2005 441 01 2613 02 START UP CHECK SHEET Keep this page for future reference Recommended but not required 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 d Type of Gas Blower Motor H P Supply Voltage Limit Opens at F or C Limit Closes at F or C Which blower speed tap is used Heating Cooling Temperature of Supply Air F 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 Upstrea
54. f required or 3 Install a reliable remote sensing device that will notify some body of freezing conditions within the home 4 Install the vent pipes as short as practical See 5 Gas Vent Installation section 5 Do NOT install furnace directly on carpeting tile or other com bustible material other than wood flooring 6 Maintain clearance for fire safety and servicing A front clear ance of 24 is minimum for access to the burner controls and filter See clearance requirements in Figure 1 or Figure 2 7 Use a raised base if the floor is damp or wet at times 8 Residential garage installations require e Burners and ignition sources installed at least 18 457 mm above the floor e Furnace must be located or physically protected from possible damage by a vehicle If the 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 fur nace These straps should be attached to the furnace bottom side 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 10 This furnace may be used for construction heat provided that e The furnace is permanently installed with all electrical wiring piping venting and ducting installed according to these installation instructions A return air duct is pro v
55. ided sealed to the furnace casing and terminated out side 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 com bustion products into the structure e The furnace is 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 minimize the corrosive effects of adhesives sealers and other construction materials It also prevents the entrain ment of drywall dust into combustion air which can cause fouling and plugging of furnace components e The temperature of the return air to the furnace is main tained between 55 F 13 C and 80 F 27 C with no evening setback or shutdown The use of the furnace while the structure is under construction is deemed to be intermittent operation per our installation instructions 441 01 2613 02 The air temperature rise is within the rated rise range on the furnace rating plate and the firing rate has beensetto the rating plate value The filters used to clean the circulating air during the construction process must be either changed or thor oughly cleaned prior to occupancy EE LEFT SIDE Plugged sta
56. ing for gas pipingis NOT approved 1 Install gas piping in accordance with local codes or in the ab sence of local codes the applicable national codes 2 It is recommended that a manual equipment shutoff valve be installed in the gas supply line outside the furnace Locate valve as close to the furnace as possible where itis readily ac cessible Refer to Figure 12 4 WARNING FIRE HAZARD Failure to follow safety warnings exactly could result in death or personal injury Use wrench to hold furnace gas control valve when turning elbows and gas line to prevent damage to the gas control valve and furnace Manual shut off valve nes Alterative installation G 4 O tS LS v 25 24 86 Union may be installed inside the cabinet when necessary because of clearances 3 Use black iron or steel pipe and fittings or other pipe approved by local code 4 Use pipe thread compound which is resistant to natural and LP gases 441 01 2613 02 5 Use ground joint unions and install a drip leg no less than 3 long to trap dirt and moisture before it can enter gas control valve inside furnace 6 Provide a 1 8 NPT plugged tapping for test gauge connection immediately up stream of gas supply connection to furnace 7 Use two pipe wrenches when making connections to prevent furnace gas control valve from turning NOTE If local codes allow the use of a flexible gas appliance co
57. ips holding the vent plate to the cabinet on either the left or right side of unit depending on right or left venting as desired Discard vent plate see Figure 6 4 Replace venter gasket part 1013540 if needed to venter assembly with adhesive in the same location as the old one 5 Clip the wire tie for the venter wires if needed 6 Rotate venter assembly 90 right or left from original location depending on venting configurations Vent Plate Screws 2 25 23 45 25 23 52 25 23 52b 441 01 2613 02 7 Tighten the three 3 or four 4 screws that secure the venter assembly to the collector box Do tighten screws enough to compress venter gasket 8 Replace power leads to venter motor and reconnect hose to pressure switch NOTE Unused open vent hole must be covered A Vent Cover is supplied with Vent Pipe Shield Kit NAHA002VC A 55 1 diameter Vent Cover is available separately from your distributor or one can be fabricated with sheet metal for all side vent installations 4 Combustion amp Ventilation Air 4 _ 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 f
58. is 11 4 shorter and 11 g narrower than the minimum required size of the opening in the floor This is done to maintain a 1 clearance between the floor and the plenum 2 Fabricate the plenum to the dimensions given in Table 5 Note that the dimensions given are outside dimensions 3 Setthe base over the openingin the floor centering the open ing in the base overthe opening inthe floor Fasten the baseto the floor with screws or nails See Figure 27 and Figure 28 4 Drop the plenum through the opening in the base The flange of the plenum should rest on top of the combustible floor base Tables Sub bases for Combustible Floors Dimensions Sub base for Sub base for Combustible Combustible Floors Floor Dimensions SubbasetorFumace Only iT 14916 SubbasetorConBox fT Te Outside Dimension a e EOZ S EO p15 Ea T m il e Opening In Base For Plenum EEE i Typical Plenum Dimensions 7 167 4 TH Ie 1317 171 3 1377 1317 171 3 19374 167 4 145 g Base Spacer Side To Side 441 01 2613 02 Fiqure 27 Exploded View of Sub Base for g Furnace ONLY 1 oa Floor Base Hole in Floor Furnace Subbase Insulation Sub base for Combustible Floors Downflow Coil Adapter Box The subbase for combustible floors is required when a downflow furnace used with a downflow coil box is set on combustible flooring 1 Cut the opening in the floor according to the dimensio
59. l wiring from furnace to optional equipment MUST conform to lo cal codes or inthe absence of local codes the applicable national codes Install wiring in accordance with manufacturer s instruc tions Humidifier Electronic Air Cleaner The furnace is wired for 115 VAC humidifier and or electronic air cleaner connection 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 24VAC HUM is energized when the pres sure switch closes ona call for heat The HUM 115VAC is en ergized when the inducer is energized ELECTRONIC AIR CLEANER EAC is energized when there is a blower speed call except is NOT energized when blower operates in the hard wired continuous fan mode Figure 19 Electrical Connections TISV 60Hz e a 2 Connection Box Ground Thermostat Co K d 1 I l L aol 1 n Tod QUOW Low Voltage Terminal Board NOTE 115 VAC 60Hz single phase Operating voltage range 127 VAC max 104 VAC min Permissible limits of voltage at which unit will operate satisfactorily Furnace Control The furnace control is preset at the factory with ON delay of 30 sec onds in the heating mode The blower OFF timing is preset at 140
60. lding or dwelling detection of leaks to check all connections as specified in see Note below 8 Gas Supply and Piping Final Check of these instruc Note The manufacturer of your furnace does not test any alarms tions and makes no representations regarding any brand or type e Always install furnace to operate within the furnace s in of alarms tended temperature rise range with a duct system which C To ensure safe and efficient operation of your unit you should has an external static pressure within the allowable range do the following as specified in Techrycal Support Mangal orthese iris 1 Thoroughly read this manual and labels on the unit This structions See fiimacefating plate will help you understand how your unit operates and the haz When a furnace is installed so that supply ducts carry air ards involved with gas and electricity circulated by the furnace to areas outside the space con 2 Do not use this unit if any part has been under water Im taining the furnace the return air shall also be handled by a mediately call a qualified service agency to inspect the unit and duct s sealed to the furnace casing and terminating out to replace any part of the control system and any gas control side the space containing the furnace which has been under water e A gas fired furnace for installation in a residential garage 3 Never obstruct the vent grilles or any ducts that provide must be installed as specified in 2 nsta
61. lines inside circuit board are printed circuit board traces and are RED Lo RED not depicted as shown in the legend WHITE Repiace only with a 5 amp fuse YELLOW 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 LOW VOLTAGE FACTORY Adapter Accessory Kit are not instailed Blower off delay gas heating selections are 60 100 140 and 180 LOW VOLTAGE FIELD seconds cooling or heat pump 90 seconds LINE VOLTAGE FACTORY Ignition lockout will occur after four consecutive unsuccessful trials for LINE VOLTAGE FIELD ignition Control will auto reset after three hours 11 Blower motor and inducer motor contain internal auto reset thermal CONDUCTOR ON CONTROL overload switches JUNCTION 12 Flame sensor 0 7 pA D C minimum 2 0 4 0 pA nominal UNMARKED TERMINAL 13 Depending on model P4 inducer motor leads may be in a single connector CONTROL BOARD z or two quick connecters CONTR OL TER MINAL mm ama mamm 330709 101 REV B Lr TOYNLNOD ADVNYNA AVIS dAd0 AWG dO iW3H 180 SEC o No Oh V Ne NOTE 3 oO SENSOR NOTE 12 S ILON GHVOS LINDYID GALNidd Parts for NSMPN L 441 01 2613 02 Replacement Parts N8MPN nawra cas Models N8SMPN050B12B1 N8MPN075B12B1 N8MPNO75F16
62. lter required for each return air inlet Airflow performance includes 1 washable 600 FPM max filter media i CFM Cubic feet per minute airflow THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE AA NBI SO Circulation Air Blower Data Continued E N8MPN L125J22 2 6 BMPN150J20 2 7 Denotes Brand Air Delivery in Cubic Feet per Minute C F M Furnace Rated 0 5 WC ESP Air Delivery in Cubic Feet per Minute C F M Furnace Rated 0 5 WC ESP Inches of W C Inches of W C Exterrnal Static Pressure v iJ 3 a a o Lad a ae S n T g bed ind G x t NOTE 1 Data based on Bottom Only or One Side return 2 Data based on Both Sides or Bottom plus One Side MAX CFM s 3 075F16 Reduce airflow by 5 if Bottom Only return 4 100F20 Reduce airflow by 10 if Bottom Only return 14 X25 7400 5 125320 Reduce airflow by 5 if Bottom Only return 6 125J22 Reduce airflow by 10 if Bottom Only return 16 X 25 1600 7 150320 Reduce airflow by 10 if Bottom Only return 20 X 25 2000 24 X 25 2500 Max CFM based on 600 FPM I Filter required for each return air inlet Airflow performance includes 1 washable 600 FPM max filter media 441 01 2613 02 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE zv 20 L92 LO Ley y WARNING ELECTRICAL SHOCK HAZARD CONNECTION DIAGRAM LADDER DIAGRAM ROLLOUT SWITCH 1 TO 2 g
63. m of Furnace Drip Leg YES d NO d Drip Leg Upstream of Gas Valve YES d NO d Blower Speed Checked YES nol 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 Section Measured Manifold Pressure Thermostat OK yesli noll Subbase Level YES a nold Anticipator Set YES E NO d Set At Breaker On YES Noli Date of Installation Date of Start Up 441 01 2613 02 1 Safe Installation Requirements e This fi i be used f EEF m VARNING U e e See 2 Installation tem 10 FIRE EXPLOSION AND ASPHIXIATION HAZARD e This furnace is NOT approved for installation in mo Improper adjustment alteration service bile homes trailers or recreation vehicles maintance or installation could cause death Seal around supply and return air ducts personal injury and or property damage e Install correct filter type and size Installation or repairs made by unqualified persons Unit MUST be installed so electrical components are pro could result in hazards to you and others tected from direct contact with water Installation MUST conform with local codes or in the absence of local codes with codes of all Safety Rules governmental authorities having jurisdiction Your unit is built to provide many years of safe and dependable service providing it is properly installed and maintaine
64. mney or concrete chimney is prohibited See the 6 Masonry Chimney Venting section in these instruc tions 11 Fan assisted combustion system Category I furnaces shall not be vented into single wall metal vents 12 Category I furnaces must be vented vertically or nearly verti cally unless equipped with a listed mechanical venter 13 Vent connectors serving Category furnaces shall not be con nected into any portion of mechanical draft systems operating under positive pressure Venting and Combustion Air Check 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 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 The 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 8149 1 Natural Gas and Propane Installation Code and thes
65. n nector always use anew listed connector Do not use a connector which has previously served another gas appliance 8 Flexible corrugated metal gas connector may NOT be used inside the furnace or be secured or supported by the furnace or ductwork 9 Properly size gas pipe to handle combined appliance load or run gas pipe directly from gas meter or LP gas regulator 10 Install correct pipe size for run length and furnace rating 11 Measure pipe length from gas meter or LP second stage regu lator to determine gas pipe size Right Side Gas Supply Piping N8MP Gas line can be installed directly to the gas valve through the hole provided in the right side of the cabinet See Figure 12 Left Side Gas Supply Piping N8MP Two 2 90 street elbows or two 2 90 standard elbows and two 2 close nipples are required for left side gas supply See Figure 12 Piping with Street Elbows 1 Assemble the elbows so that the outlet of one 1 elbow is 90 from the inlet of the other The elbows should be tight enough to be leak proof An additional 1 4 turn will be required at the end of step 2 see Figure 13 Figure 13 Elbows N8MP 2 Screw elbow assembly into gas valve far enough to be leak proof Position elbow assembly so that the inlet of the elbowis at the top of the gas valve An additional 3 g turn will be re quired in step 3 Turn open end of inlet elbow to face the left side of the furnace 1 4 turn see Figure 14
66. n Panel on some models For a furnace not equipped with a cooling coil the outlet duct shall be provided with a removable access panel This opening shall be accessible when the furnace is installed and shall be of sucha size that the heat exchanger can be viewed for possible openings using light assistance or a probe can be inserted for sampling the air stream This access cover shall be attached in such a manner as to prevent air leaks Filters A filter MUST be used Filters are not supplied with these furnaces but can be purchased from your distributor See Table 4 for required high velocity filter sizes Table 4 High Velocity Air Filter Sizes max 600 FPM Cabinet Internal Filter External Filter Rack Width Greater than 1600 CFM requires both left and right side return filter racks in upflow position Side return air duct s is not permitted with horizontal or downflow furnace installation 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 external filter grille CAUTION RISK OF REDUCED FURNACE LIFE Failure to follow these Caution may result in premature furnace component failure Use of excessively dirty and or restrictive air filters may increase furnace operating temperatures and shorten the life of the furnace Filters specified for the furn
67. n in Table 6 or Table 7 5 When the manifold pressure is properly set replace the ad Justment screw cover on the gas control valve 6 Remove jumper wire from thermostat connection on fan board Remove manometer connection from manifold pres sure tap and replace plug in gas valve 7 Check for leaks at plug Natural Gas Input Rating Check The gas meter can be used to measure input to furnace Check with gas supplier for actual BTU content 1 Turn OFF gas supply to all appliances other than furnace and start furnace Use jumper wire on R to W 2 Time how many seconds it takes the smallest dial on the gas meter to make one complete revolution Note If meter uses a 2 cubic foot dial divide results seconds by two Refer to Example The Example is based on a natural gas BTU content of 1 000 BTU s per cubic foot Example Natural Gas Time Per Cubic BTU Content ara f ee Foot in Bie Per per cubic foot all Seconds Our 1 000 3 600 P48 75 000 1 000 x 3 600 48 75 000 BTUH 3 Remove jumper wire from R to W 4 Relight all appliances and ensure all pilots are operating Orifice Sizing NOTE Factory sized orifices for natural and LP gas are listed in the furnace Technical Support Manual Ensure furnace is equipped with the correct main burner orifices Refer to Table 6 or Table 7 for correct orifice size and manifold pressure for a given heating value and specific gravity for natural and propane gas Oper
68. nace it must be installed on the discharge side of the furnace to avoid con densation in the heat exchanger The coil installation instructions must be consulted for proper coil location and installation proce dures With a parallel flow arrangement dampers must be installed to prevent chilled air from entering the furnace If manual ly operated dampers are used they must be equipped with a means to prevent operation of either unit unless the damper is in full heat or full cool position Copper or plastic tubing may be used for the condensate drainline 441 01 2613 02 11 Ductwork and Filter Downflow A 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 WARNING FIRE HAZARD Failure to connect the return air duct to the top of a downdlow furnace could result in death bodily injury and or property damage Side return air duct s may cause excessive furnace and or air temperatures which could result in death bodily injury and or property damage Return air duct is to be connected to only the top of downflow furnace A WARNING BURN HAZARD The vent may be hot Failure to install vent shield properly could result in personal injury Install VENT PIPE SHIELD NAHAOO2VC as described below Vent Shield Ven
69. ncluding the National Fuel Gas Code NFGC ANSI Z223 1 2002 NFPA 54 2002 In Canada refer to 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 In some instances these instructions exceed certain local codes and ordinances especially those that may not have kept up with changing residential construction practic es We require these instructions as a minimum for a safe installation said Comfort products LEG INSTALLER Affix these instructions g TN 37091 f on or adjacent to the furnace A creicieNcy CONSUMER Retain these G CERTIFIED instructions for future reference ama CERTIFIED Table of Contents Safe Installation Requirements 9 Electrical Wiring Installation 10 Ductwork and Filter Upflow Horizontal Side Venting TLIA 11 Ductwork and Filter Downflow Combustion amp Ventilation Air 12 Checks and Adjustments Gas Vent Installation Horizontal Venting 13 Furnace Maintenance Masonry Chimney Venting 14 Sequence of Operation amp Diagnostics Gas Supply and Piping Tech Support and Parts ESN On PwWwNh CARBON MONOXIDE POISONING AND FIRE ELECTRIC SHOCK HAZARD HAZARD Failure to follow safety warnings Failure to follow safety warnings
70. nd 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 horizontal 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 Drawing is representative some models may vary Furnace is designed for bottom return or side return J i gan Mo 175hs 314 ilo __4 My 4h 213 4 265 3 NOTE Evaporator A coil drain pan dimensions may vary from furnace duct opening size Always consult evaporator specifications for duct size requirements Plugged starting hole to cut side duct opening Return air through back of furnace is NOT allowed Furnace Installation Inspect the rating plate to be certain the model number begins with N8MP or 8MP This identifies the unit as a multi position fur nace and can be Installed in a Upflow Horizontal Right Horizontal Left or Downflow position Dentoes Brand C H T Upflow No modifications are required for upflow installation See Figure 3 441 01 2613 02 Typical Upflow Installation SUPPLY lt a gt A RETURN AIR M Gas SUPPLY 25 2
71. ney adapter per instructions Not Suitable Consult Part C of chimney adapter venting instructions for application suitability Line chimney with properly sized listed flexible metal liner or Type B vent per NFGC or NSCNGPIC Vent Sizing Tables and liner or vent manufacturer s installation instructions Install chimney adapter per instructions 441 01 2613 02 Exterior Masonry Chimney FAN NAT Installations with Type B Double Wall Vent Connectors NFPA amp AGA Table A Combined Appliance Maximum Input Rating in Thousands of Btu per Hr INTERNAL AREA OF CHIMNEY SQ IN 19 28 Table B Minimum Allowable Input Rating of Space Heating Appliance in Thousands of Btu per Hr INTERNAL AREA OF CHIMNEY SQ IN 19 28 Local 99 Winter Design Temperature 17 to 26 F 0 55 99 141 52 74 111 154 NR 90 125 169 NR NR 167 212 NR NR 212 258 NR NR NR 362 Local 99 Winter Design Temperature 5 to 16 F NR 78 121 166 NR 94 135 182 NR 111 149 198 NR NR 193 247 NR NR NR 293 NR NR NR 377 Local 99 Winter Design Temperature 10 to 4 F NR NR 145 196 NR NR 159 213 NR NR 175 231 NR NR NR 283 NR NR NR 333 NR NR NR NR Local 99 Winter Design Temperature 11 F or lower 17 to 26 F 10 to 4 F Not recommended for any vent configuration The 99 Winter Design Dry Bulb db temperatures are found in the 1993 ASHRAE Fundamentals Handbook Chapter 24 Table 1 United States and 2 Canada or u
72. ns in Table 5 because the base is equipped with locating tabs that center the base over the opening The opening in the base is 11 4 shorter and 11 g narrower than the minimum required size of the opening in the floor This is done to maintain a 1 clearance between the floor and the plenum 2 Fabricate the plenum to the dimensions given in Table 5 Note that the dimensions given are outside dimensions 3 Setthe base over the opening in the floor centering the open ing inthe base over the opening in the floor Fasten the base to the floor with screws or nails See Figure 29 and Figure 30 4 Drop the plenumthrough the opening in the base The flange Exploded View of Base for Figure 29 P 25 21 46b Subbase Insulation Wood Floor 25 20 46A Consideration must be given to the height of the base to allow for easy installation of the condensate drain See Figure 31 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 25 20 52 Non Combustible Floor 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 Duct Connections In the downflow position the return air duct must be connected to only the top of the furnace Topreturn connections canbe made by removing the knockout panel in the furnace base Return
73. ntal or vertical ducts or openings 2 Figure 8 illustrates how to 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 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 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 of all gas appliances in the space see Table 1 3 When one permanent outdoor opening is used the opening requires a 1 sq 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 notless than the sum of the areas of all vent connectors in 441 01 2613 02 the space Outside Air This is ONLY a guide Subject to codes of country having jurisdiction This installation NOT approved in Canada Gable Vent Gable Vent Gas Vent SS Outlet Pp Inlet fy T LU Air 2 Inlet g Furnace d Air 1 N w C Minimum One Inlet and One Outlet Air Supply is Required Air 2 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 Squa
74. ntry having ju risdiction local codes or ordinances and these instructions 441 01 2613 02 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 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 titted 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 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 continuously or 55 on an intermittent basis so that flue gases will n
75. o the annular space between the chimney and the metal liner APPLIANCE APPLICATION REQUIREMENTS Appliance operation has a significant impact on the performance of the venting system If the appliances are sized installed ad justed and operated properly the venting system and or the ap pliances should not suffer from condensation and corrosion The venting system and all appliances shall be installed in accordance with applicable listings standards and codes The furnace should be sized to provide 100 percent of the design heating load requirement plus any margin that occurs because of furnace model size capacity increments Heating load estimates can be made using approved methods available from Air Condi tioning Contractors of America Manual J American Society of Heating Refrigerating and Air Conditioning Engineers or other approved engineering methods Excessive oversizing of the fur nace could cause the furnace and or vent to fail prematurely When a metal vent or metal liner is used the vent or liner must bein good condition and be installed in accordance with the vent or liner manufacturer s instructions To prevent condensation in the furnace and vent system the fol lowing precautions must be observed 1 The return air temperature must be at least 60 F db except for brief periods of time during warm up from setback at no lower than 55 F db or during initial start up from a standby condition 2 Adjust the gas
76. or other appliances This should be maintained for service clearance 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 however it is recommended for further fire protection cement board or sheet metal is placed between the furnace and the combustible wood floor and extend 12 beyond the front of the furnace louver door This is a recommendation only not a requirement This furnace MUST NOT be installed directly on carpeting tile or other combustible material other than wood flooring or supports Downflow 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 noncombustible flooring If you purchased a Multi position furnace N8MP or 8MP it may be installed in a downflow configuration see Figure 5 The mini mum clearances to combustion construction MUST be maintained between the furnace and adjacent construction as shown in Figure 1 and Figure 2 In addition to clearances in Figure 1 and Figure 2 clearance for the vent pipe must be considered Asubbase for combustible floors MUST be used when the furnace is installed as a downflow on combustible material See 11 Duct work and Filter Downflow Section The ou
77. or other wires when reinstalling blower compartment door 441 01 2613 02 8MPN L Models The J box is installed in the burner compartment on left side of casing An alternate J box location on right side can be used 1 Remove and save two screws holding J box to casing 2 Move large hole plug from right to left J box location 3 Clip wire tie holding J box wires 4 Move J box to alternate location and attach using two screws removed from left side location 5 Position all wires away from hot surfaces sharp edges and moving parts Do not pinch J box wires or other wires when reinstalling burner compartment door Thermostat Thermostat location has an important effect on the operation of the furnace Follow instructions included with thermostat for correct mounting and wiring Low voltage connections to furnace must be made on terminal board to furnace control See Figure 19 If cooling is used the Y from the thermostat must be connected to the control board Y to energize cooling blower speed 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 24VAC 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 Al
78. or 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 Standard of Canada Natural Gas and Propane Installation Code NSCNGPIC CSA B149 1 05 in Canada 3 Applicable provisions of the local building code When the installation is complete check that all appliances have adequate combustion air and are venting properly See Venting And Combustion Air Checkin 5 Gas Vent Installation Section in this manual Contaminated Combustion Air Installations in certain areas or types of structures could cause ex cessive exposure to contaminated air having chemicals or halo gens that will result in safety and performance related problems and may harm the furnace These instances must use only out door air for combustion 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 outdoor air for combustion e Commercial buildings e Buildings with indoor pools e Furnaces installed in laundry rooms e Furnaces installed in hobby or craft rooms e F
79. ot condense excessively in the heat exchanger Excessive con densation will shorten the life of the heat exchanger and possibly void your warranty This Category I furnace is fan assisted Category I furnace definition A central furnace which operates with a non positive vent static pressure and with a flue loss not less than 17 percent These furnaces are approved for common venting and multi story venting with other fan assisted or draft hood equipped appliances in accordance with the NFGC or NSCNGPIC Category I Safe Venting Requirements Category I furnace vent installations shall be in accordance with Parts 10 and 13 of the National Fuel Gas Code NFGC ANSI Z2223 1 2002 NF PA 54 2002 and or Section 7 and Appendix C of the CSA B149 1 05 National Standard of Canada Natural Gas and Propane Installation Code the local building codes furnace and vent manufacturer s instructions NOTE The following instructions comply with the ANSI Z223 1 NFPA 54 National Fuel Gas Code and CSA B149 1 Natu ral Gas and Propane Installation code based on the input rate on the furnace rating plate 1 Ifa Category I vent passes through an attic any concealed space or floor use ONLY Type B or Type L double wall vent pipe If vent pipe passes through interior wall use Type B vent pipe with ventilated thimble ONLY 2 Do NOT vent furnace into any chimney serving an open fire place or solid fuel burning appliance 3 Use the same diameter Cat
80. ply pressure should be within minimum and maximum val ues listed on rating plate Pressures are usually set by gas suppli ers See LP Gas Conversion Kit instruction manual for furnaces con verted to LP gas Manifold Gas Pressure Adjustment NOTE Make adjustment to manifold pressure with burners oper ating A 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 1 With gas OFF connect manometer to manifold pressure tap on outlet of gas control valve See Figure 34 Use a manome ter with a 0 to 12 water column range Figure 34 Typical Gas Control Valve Honeywell Regulator Adjustment HONEYWELL G ner Pressure Tap Q O Vg NPT Xd OUTLET INLET Inlet Pressure Tap 1 4 NPT 25 24 98a 2 Turn gas ON Operate the furnace by using a jumper wire on the R to W thermostat connection on the control 3 Remove manifold pressure adjustment screw cover on fur nace gas control valve Turn adjusting screw counterclock 441 01 2613 02 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 4 Set manifold pressure to value show
81. quipped Category appliance The 99 Winter Design Dry Bulb db temperatures are found in the 1993 ASHRAE Fundamentals Handbook Chapter 24 Table 1 United States and 2 Canada or use the 99 6 heating db temperatures found in the 1997 or 2001 ASHRAE Fundamentals Handbook Climatic Design Information chapter Table 1A United States and 2A Canada Aa WARNING CARBON MONOXIDE POISONING FIRE AND EXPLOSION HAZARD Failure to properly vent this furnace could result in death personal injury and or property damage These furnaces are CSA formerly AGA and CGA design certified for venting into exterior clay tile lined masonry chimneys with a factory accessory Chimney Adapter Kit Refer to the furnace rating plate for correct kit usage The Chimney Adapter Kits are for use with ONLY furnaces having a Chimney Adapter Kit number marked on the furnace rating plate 441 01 2613 02 If a clay tile lined masonry chimney is being used and itis exposed to the outdoors below the roof line relining might be required Chimneys shall conform to the Standard for Chimneys Fire places Vents and Solid Fuel Burning Appliances ANSI NFPA 211 2003 in the United States and to a Provincial or Territorial Building Code in Canada in its absence the National Building Code of Canada and must be in good condition U S A Refer to Sections 13 1 9 or 13 2 20 of the NFGC or the au thority having jurisdiction to determine whether relining is req
82. r 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 40 Control Board Diagnostic Light 441 01 2613 02 Technical Support Manual Save This Manual For Future Reference International Comfort Products LLC Lewisburg TN 37091 Fast Parts Division 866 380 3278 N8MPN050B12B1 N8MPN075B12B1 N8MPNO75F16B1 N8MPN100F14B1 N8MPN100F20B1 N8MPN100J22B1 N8MPN125J20B1 N8MPN125J22B1 8MPN050B12B1 8MPNO75B12B1 8MPNO75F16B1 83MPN100F14B1 8MPN100F 20B1 8MPN100J20B1 8MPN125J20B1 8MPN150J20B1 Denotes Brand NOW Sateen Models N8MPLO050B12B1 N8MPLO75B12B1 N8MPLO75F16B1 N8MPL100F 20B1 N8MPL100J22B1 N8MPL125J20B1 N8MPL125J22B1 8MPL050B12B1 8MPL075B12B1 8MPL075F16B1 8MPL100F20B1 8MPL100J20B1 8MPL125J20B1 FAN ASSISTED COMEUSTION FURNACES 441 01 2613 02 Manufacturers Number Mfr No See Rating Plate ALL Models N8MPN N8MPN 050B12 N8MPN 075B12 N8MPN 075F16 N8MPN 100F14 N8MPN 100F20 N8MPN 100J22 N8MPN 125J20 N8MPN 125522 General Input Btuh Output Btuh Temp Rise F Electrical Volts Hz 50 000 40 000 35 65 115 60 75 000 60 000 35 65 115 60 75 000 60 000 25 55 115 60 1
83. re Inch 6cm2 per 4000 BTUH 2 1 Square Inch 6cm per 2000 BTUH Z Optional Inlet Air 1 The opening shall commence within 12 of the top of the enclo b Outdoor openings located as required in the Outdoor sure Appliances shall have clearances of atleast 1 fromthe sides Combustion Air Method above and and back and 6 from the front The opening shall directly commu c Outdoor openings sized as follows 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 1 Calculate the Ratio of all Indoor Space volume divid ed by required volume for Indoor Combustion Air Meth od Outdoor openings sized as follows 2 Outdoor opening size reduction Factor is 1 minus the 4 Combination of Indoor and Outdoor Air shall have Ratio in 1 above 3 Minimum size of Outdoor openings shall be the size a Indoor openings that comply with the Indoor Combus required in Outdoor Combustion Air Method above tion Air Method below and multiplied by reduction Factor Minimum Free Area Required for Each Opening or Duct to Outdoors Single Opening Two Vertical Ducts or Openings ba mi ee sq in 2 000 BTUH sq in 3 000 BTUH sq in 4 000 BTUH BTUH a EXAMPLE Determining Free Area Furnace Water Heater Total Input 100 000 30 000 130 000 4 000 32 5 Sq In Vertical Furnace Water Heater Total Input 100 000 30 000 130 000
84. ressure testing of gas supply piping system a If test pressure does not exceed 1 5 psi isolate the furnace from the gas supply piping system by closing the equipment shutoff valve b Iftest pressure exceeds 1 5 psi the furnace and its manual equipment shutoff valve must be disconnected from the gas supply piping system e To check for leaks apply soap suds or a liquid detergent to each joint Bubbles forming indicate a leak 3 Gas supply line then can be run directly into opening of elbow Piping with Close Nipples and Standard Elbows Do not use an open flame to test for gas leaks Fire or explo a sion could occur 1 Assemble elbows and nipples similar to street elbows shown in Figure 13 e Correct even the smallest leak at once 441 01 2613 02 9 Electrical Wiring Aa _ WARNING ELECTRICAL SHOCK HAZARD Failure to follow safety warnings exactly 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 National Electrical Code NEC ANSI NFPA 70 2002 inthe U S or the Canadian Electrical Code CEC CSA C22 1 in Canada The power supply to the furnace connections must be between 104 VAC and 1
85. rn air duct connection Figure 21 Cutting Side Return Air Opening Plugged Starting Hole Duct Design Design and install air distribution system to comply with Air Condi tioning Contractors of America manuals or other approved meth ods that conform to local codes and good trade practices When the furnace is located in an area near or adjacentto the living area the system should be carefully designed with returns to mini mize noise transmission through the return air grille Any blower moving a high volume of air will produce audible noise which could be objectionable when the furnace is located very close to a living 441 01 2613 02 area It is often advisable to route the return air ducts under the floor or through the attic e Refer to furnace Technical Support Manual Blower Data for air flow information e Size ductwork to handle air flow for heating and air condition ing if so equipped Duct Installation Requirements e When a furnace is installed so that supply ducts carry air cir culated by the furnace to areas outside of the space contain ing the furnace the return air shall also be handled by duct s sealed to the furnace casing and terminating outside the space containing the furnace Nae ANSTO CARBON MONOXIDE POISONING HAZARD Failure to follow safety warning exactly could result in death personal injury and or component damage Install cooling coil on furn
86. rting hole to cut side duct opening 213 4 265 g BOTTOM L 446 DIMENSIONS IN INCHES Furnace Return Air Model PA B Opening NEMPNILOSOB12 451 H N8MPN L075B12 2 14 N8MPN L075F16 N8MPN100F14 191 175 21 J N8MPN L100F20 NSMPN L100J22 NSMPNIL125 20 2234 21 TShs 183 4 J N8MPN L125J22 441 01 2613 02 Drawing is representative but some models may vary The furnace ductwork and filters are cleaned as neces sary to remove drywall dust and construction debris from all HVAC system components after construction is com pleted Verify proper furnace operating conditions including igni tion gas input rate air temperature rise and venting ac cording to these installation instructions MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS FOR ALL FURNACES REAR FRONT combustion air openings in furnace and structure Required For Service ALL SIDES Of SUPPLY PLENUM SIDES VENT Single Wall Vent Type B 1 Double Wall Vent TOP OF FURNACE 30 clearance recommended for furnace removal Horizontal position Line contact is permissible only between lines formed by intersections of top and two sides of furnace jacket and building joists studs or framing 281 rae RIGHT SIDE L 4Mg ae 213 4 A 265g 7 Plugged starting hole to cut side duct opening NOTE E
87. se the 99 6 heating db temperaturesfound in the 1997 or 2001 ASHRAE Fundamentals Handbook Climatic Design Information chapter Table 1A United States and 2A Canada Inspections before the sale and atthe time of installation will deter mine the acceptability of the chimney or the need for repair and or re lining Refer to the Chimney Inspection Chart to perform a chimney inspection If the inspection of a previously used tile lined chimney a Shows signs of vent gas condensation the chimney should be relined in accordance with local codes and the authority having jurisdiction The chimney should be relined with a listed metal liner Type B vent or a listed chimney adapter kittoreduce condensation Ifa condensate drainis required by local code refer to the NFGC Section 10 9 for additional information on condensate drains b Indicates the chimney exceeds the maximum permissible size inthe tables the chimney should be rebuilt or relined to conform to the requirements of the equipment being installed and the authority having jurisdiction Achimney without a clay tile liner which is otherwise in good con dition shall be rebuilt to conformto ANSI NFPA 211 or be lined with a UL listed ULC listed in Canada metal liner or UL listed Type B vent Relining with a listed metal liner or Type B vent is consid ered to be a vent in a chase If a metal liner or Type B vent is used to line a chimney no other appliance shall be vented int
88. t for operation of the continu 441 01 2613 02 ous fan option This connection is intended for the low speed mo tor 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 terminal this will provide low speed blower operation whenever the other two speeds Heat or Cool are not energized EAC not powered in this mode 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 13 Furnace Maintenance 4 WARNING FIRE EXPLOSION OR CARBON MONOXIDE POISONING HAZARDS Failure to have the furnace inspected and maintained could result in death personal injury and or property damage It is recommended that the furnace be inspected and serviced on an annual basis before the heating season by a qualified service agency See User s Information Manual Continuous Fan Connect low speed lead from circulating air motor to the Cont terminal at the furnace control board The appropriate motorleads should already be connected to the Heat and Cool terminals Heating and Continuous Fan Speed the Same Ifitis necessary to operate the heating speed and continuous fan speed using the same blower speed connect a jumper between the Heat and Cont terminals on the furnace control board Note There shoul
89. t shield is required for all downflow installations The vent Must exit out the side of the furnace for all downflow installations This places the hot vent pipe over 300 F within reach of children Vent shield attaches to side of furnace to cover vent pipe See Figure 5 in 2 Installation section WARNING Failure to install furnace 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 Outlet Duct Flange Downflow installations with cased coils require the furnace outlet duct flange to be bent outward and flat to mate the outlet of the fur nace to the cased coil Sub Bases for Combustible Floors Furnace Only Note When using the subbase for combustible floors the dis charge air duct flanges on the furnace MUST be broken down 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 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 Cut the opening in the floor according to the dimensions in Table 5 because the base is equipped with locating tabs that center the base over the opening The opening in the base
90. teps 2 through 4 Piping with Street Elbows A WARNING FIRE OR EXPLOSION HAZARD Failure to properly install metal gas connector could result in death personal injury and or property damage A flexible corrugated metal gas connector must be properly installed shall not extend through the side of the furnace and shall not be used inside the furnace Black iron pipe shall be installed at the furnace gas control valve and extend a minimum of 2 outside furnace Additional LP Piping Requirements Have a licensed LP gas dealer make all connections at stor age tank and check all connections from tank to furnace If copper tubing is used it MUST comply with limitation set in Local Codes or in the absence of local codes the gas codes of the country having jurisdiction Two stage regulation of LP gas is recommended Figure 17 Gas Valve with Elbows 8MP FIRE OR EXPLOSION HAZARD An open flame or spark could result in death personal injury and or property damage Liquefied petroleum LP gas is heavier than air and will settle and remain in low areas and open depressions Thoroughly ventilate area and dissipate gas Do NOT use a match or open flame to test for leaks or attempt to start up furnace before thoroughly ventilating area 25 25 03 Final Check e Test all pipe for leaks Figure 18 Gas Valve with Elbows 8MP e If orifices were changed make sure they are checked for leaks e During p
91. the exist ing location based upon the minimum clearance and furnace di mensions Figure 1 or Figure 2 A _ WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow safety warnings 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 harm the furnace and vent system and permit spillage of combustion products into an occupied space Refer to 4 Combustion amp Ventilation Air section Contaminated Combustion Air for combustion air evaluation and remedy Installation Requirements 1 Install furnace level 2 This furnace is NOT to be used for temporary heat of buildings or structures under construction 3 Install furnace as centralized as practical with respect to the heat distribution system 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 1 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 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 i
92. tion Part Functional Number Partition Frt Ht Exchanger 1013780 1013781 1013782 1013783 1013784 1013785 Gaskets Heat Exchanger 1013991 1013992 1013993 1013994 Tubing Silicone 1172192 Baffle Nox 1014019 Sightglass 1172768 Part Not Illustrated Fuse 5 Amp 1083348 Harness Wire 1172811 1172812 Manual Installation amp Tech 44101261302 Manual Users 44102201100 Gas Conversion Kits Natto LP NAHAOQO1LP 1172958 LP toNat NAHAQO1NG 1172960 Must be ordered from Service Parts 441 01 2613 02 Parts for 8MPN L 25 25 09a 441 01 2613 02 Replacement Parts 8MPN wawrai Gas Models 8MPN050B12B1 8MPNO75B12B1 8MPNO75F16B1 8MPN100F14B1 8MPN100F 20B1 8MPN100J20B1 8MPN125J20B1 8MPN150J20B1 Replacement part supplied will be current active part For parts not listed consult place of purchase Description Part Functional Number Heat Exchanger 1013551 1013519 1013550 1013552 1013553 1013554 1013555 Switch Pressure 1013529 Wheel Blower 1013011 1011420 1011433 Mount Motor kit 1014824 1014823 1014822 Motor Bir 1 115 1 3 CCW 1172490 1 115 1 2 CCW 1172487 1 115 1 2 CCW 1172488 1 115 3 4 CCW 1172489 Capacitor 10 Mfd 370V 1171729 7 5 Mfd 370V 1171728 40 MFD 370V 1171982 Transformer 1172810 Control 1172550 Switch Interlock 1171981 Burner Assembly 1172884 11729
93. tions 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 441 01 2613 02 7 Masonry Chimney Venting Chimney Inspection All masonry chimney construction must conform to Standard ANSI NFPA 211 2003 and to any state or local codes applicable The chimney must be in good condition and a complete chimney inspection must be conducted prior to furnace installation If the in spection reveals damage or abnormal conditions make neces sary repairs or seek expert help See Figure 11 The Chimney Inspection Chart Measure inside area of tile liner and exact height of chimney from the top of the chimney to the highest ap pliance flue collar or drafthood outlet Connector Type To reduce flue gas heat loss and the chance of condensate prob lems the vent connector must be double wall Type B vent Venting Restrictions for Chimney Types Interior Chimney has no sides exposed to the outdoors below the roofline All installations can be single furnace or common vented with another draft hood equipped Category I appliance Exterior Chimney has one or more sides exposed to the out doors below the roof line All installations with a 99 Winter De sign Temperature below 17 F must be common vented only with a draft hood e
94. tlet flange must be bent flat for downflow installation When installing a four position furnace in the downflow position not the 8DNL furnace the logo is to be repositioned so that it is rightside up as follows T8MPN L 1 Find the door hardware kit that is stored in the furnace and save it 2 Carefully remove logo from the outside of burner compartment door and save it 3 Carefully remove two small plug buttons from outside of blow er compartment door and save them 4 Remove two thumbscrews from blower compartment door 5 Install two thumbscrews in holes at other end of blower compartment door from where thumbscrews were removed 6 Install new strip of rubber gasket on inside of blower compart ment door on edge that does not already have a gasket 7 Installlogo retainer pins into holes in blower compartment door from which plug buttons were removed 8 Install plug buttons into holes in burner compartment door from which logo was removed 9 Install blower compartment door on furnace with bevel edge and logo at top 10 Install burner compartment door on furnace with bevel edge at bottom N8MPN L C8MPN L H8MPN L 1 Carefully remove logo from burner compartment door and save it 2 Turn the logo rightside up and install the logo retainer pins 441 01 2613 02 into holes in burner compartment door 3 New labels for rightside up application on outside of blower compartment door may be purchased
95. to get the total minimum required vol ume for the space Fan assisted Total 1 000 s Btuh 3 125 3 750 3 750 4 500 a NP Not Permitted 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 2 For fan assisted appliances such as this furnace I fan 1000 Btu hr 21 ft Volume 2 other ACH 15 ft Volume Pee fan ACH If I other Combined input of all other than fan assisted appliances in Btu hr I fan combined input of all 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 Anattic or crawl space may be considered a space that freely communicates with the outdoors provided there are adequate ventilation openings directly to outdoors Openings MUST re 5 Gas Vent Installation 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 Read and follow all instructions in this section Install the vent in compliance with codes of the cou
96. uired If relining is required use a properly sized listed metal liner Type B vent or a listed alternative venting design NOTE See the NFGC 13 1 9 and 13 2 20 regarding alternative venting design and the exception which cover installations such as the Chimney Adapter Kits NAHA001DH and NAHA002DH The Chimney Adapter Kits are listed alternative venting designs for these furnaces See the kit instructions for complete details Canada and U S A This furnace is permitted to be vented into a clay tile lined masonry chimney that is exposed to the outdoors below the roof line provided 1 Vent connector is Type B double wall and 2 This furnace is common vented with at least 1 draft hood equipped appliance and 3 The combined appliance input rating is less than the maxi mum capacity given in Table A and 4 Theinput rating of each space heating appliance is greater than the minimum input rating given in Table B for Masonry Chimneys for the local 99 Winter Design Temperature Chimneys having internal areas greater than 38 square inches require furnace input ratings greater than the input ratings of these furnaces See footnote at bottom of Table B and 5 The authority having jurisdiction approves If all of these conditions cannot be met an alternative venting de sign shall be used such as the listed chimney adapter kit with a furnace listed for use with the kit a listed chimney lining system or a Type B vent Thes
97. urnaces installed near chemical storage areas e 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 e Solvent cements and glues e Antistatic fabric softeners for clothes dryers e Masonry acid washing materials Outdoor Combustion Air Method Aspace having less than 50 cubic feet per 1 000 BTUH input 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 gra 5 Whensizinga grille louver or screen use the free area of open ing If free area is NOT stamped or marked on grill or louver assume a 20 free area for wood and 60 for metal Screens shall have a mesh size not smaller than 1 4 Requirements 1 Provide the space with sufficient air for proper combustion and ventilation of flue gases using horizo
98. vaporator A coil drain pan dimensions may vary 5 23 44a1 from furnace duct opening size Always consult evaporator specifications for duct size requirements Furnace is designed for bottom return or side return Return air through back of furnace is NOT allowed Dimensions and Clearances 8MPN L Models Mater Heater LEFT SIDE MINIMUM CLEARANCES TO COMBUSTIBLE REAR gt O a in furnace and structure Required For Service For Service p24 psmes CTS pveNT Single Wall Vent e Type B 1 Double Wall Vent TOP OF FURNACE 30 clearance recommended for furnace removal Horizontal position Line contact is permissible only between lines Plugged starting hole to cut side 7 opening 2135 4 265 BOTTOM formed by intersections of top and two sides of furnace jacket and building joists studs or framing 281 334 p 181 3 D RIGHT SIDE n mea 23g Mhe DIMENSIONS IN INCHES DIMENSIONAL INFORMATION Furnace EN Return Air E 8MPN LO50B12 4 4 EMPNLOSB12 epe e ee 8MPN L075F16 8MPN100F14 191 117 T4 21 143 q J 8MPNI L100F 20 8MPN L100J20 8MPN L125320 2234 2114 91 TShs 11834 J 8MPN150J20 Denotes Bra
99. vert to propane gas use see the furnace rating plate for the LP conversion accessory kit part CAUTION CARBON MONOXIDE POISONING HAZARD Failure to follow this warning can result in death property damage and or personal injury NOx inserts for use with Natural Gas units ONLY If LP Gas is required NOx inserts must be removed 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 8MPLs and N8MPLs contain NOx inserts For LP conversion remove screws that secure the NOx insert and discard insert Reinstall screws See Figure 37 NOTE It is very important to reinstall the NOx insert mounting screws Removing NOx inserts 25 40 03 Main Burner Flame Check Allow the furnace to run approximately 10 minutes Then inspect the main burner flames See Figure 38 Check for the following e Stable and blue flames Dust may cause orange tips or wisps of yellow but flames MUST NOT have solid yellow tips e Flames extending directly from burner into heat exchanger 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 10 10 78 NOTE For Ignitor location see Figure 39 441 01 2613 02
100. ypical Gas Water Heater et a Match NOTE If flame pulls towards draft hood this indicates sufficient infiltration air Venting to Existing Masonry Chimney Dedicated venting of one fan assisted furnace into any ma sonry chimney is restricted A chimney must first be lined with either Type B vent sized in accordance with NFGC tables 13 1 or 441 01 2613 02 13 2 or a listed metal lining system See Section 7 Masonry Chimney Venting of these instructions Listed corrugated metallic chimney liner systems in masonry chimneys shall be sized by using NFGC tables per 13 1 7 for dedi cated venting and per 13 2 19 for common venting with the maxi mum capacity reduced by 20 0 80 X maximum capacity and the minimum capacity as shown in the applicable table In Canada use the NSCNGPIC appendix C section 10 Corrugated metal vent systems installed with bends or offsets require additional re duction of 5 of the vent capacity foreach bend upto 45 and 10 of the vent capacity for each bend from 45 up to 90 NOTE Two 2 45 elbows are equivalent to one 1 90 elbow Combined Venting into a Masonry Chimney Venting into a masonry or concrete chimney is only permitted as outlined in the NFGC or NSCNGPIC venting tables Follow all safe venting requirements Note See section 7 Masonry Chimney Venting 6 Horizontal Venting Category I Furnaces With External Power Venters In order to maintain a Category I classifi

Hunter Fan 21970 Fan User Manual

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