Assessments - 2, GPA: 3 ( )

Fabricante : Sears Arquivo Tamanho: 2.69 mb Arquivo Nome : Língua de Ensino:

FT. No. Pressure No. Pressure No. Pressure No. Pressure No. Pressure No. Pressure No. Pressure 700 41 3.7 725 41 3.7 41 3.4 750 41 3.5 42 3.6 775 41 3.6 42 3,6 42 3.3 800 41 3.6 42 3.7 42 3.4 42 3.1 825 41 3.7 41 3.4 42 3,5 42 3,2 42 2.9 850 41 3.5 42 3.6 42 3.3 42 3.0 42 2.8 875 41 3.6 42 3,6 42 3.4 42 3,1 42 2,8 42 2.6 900 42 3,7 42 3,4 42 3.2 42 2,9 42 2,7 42 2.5 925 41 3.7 42 3.5 42 3.3 42 3.0 42 2,8 42 2.5 44 3.3 950 41 3.5 42 3,3 42 3,1 42 2.9 42 2,6 42 2,4 44 3.1 975 42 3.7 42 3.2 42 2.9 42 2.7 42 2.5 44 3.2 45 3.6 1000 42 3.5 42 3,0 42 2,8 42 2.6 42 2.4 45 3.7 45 3.4 1050 42 3.2 42 2.7 42 2.5 44 3.3 45 3.6 1100 43 3.6 42 2,5 44 3.2 45 3.6 _i_i_i_i_i_i_i_;_;%;iiiiiiiiiiiiiiiiiiiiiiiiii_i;!_ii_iiiiiiiiiiiiiiiiiiil;_i_;i;i;i;i;i;i;i;iiiiiiiiiiiiiiiiiii!_i_i_i!ii!iiiililililiiii!ii! iiiiiiiiiiiiiiiiiiiiiiii..;_;_.i._;.;.;.;.;.;.;.;.;.;.;.;.; iiiiiiiiiiiiiiiiiiiiiiiiiiii!_i_i_i!ii!iiiililililililililiiii!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. iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii or GAS i i iPRESSURE!ii i (" w.c.) i i! i! i! i! i! i! i! i! i! i! i! i! i! i! i! i! i! i! LPG PROPANE MANIFOLD HEATING VALUE MEAN ELEVATION FEET ABOVE SEA LEVEL at ALTITUDE 0 to 2001 to 3001 to 4001 to 5001 to 6001 to 7001 to BTU/CU. FT. 2000 3000 4000 5000 6000 7000 8000 2500 10.0 10.0 9.0 10.0 9.4 8.5 10.0 Orifice Size #54 #54 #54 #55 #55 #55 #56 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/N FPA 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. _ ; ;;; _ ;;;;;;; ;;;;;;;;;;;;;;;;;;2 The burner orifice part nos. are as follows: Orifice #41 1096942 Orifice #42 1011351 Manifold Orifice #43 1011377 Orifice #44 1011352 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, remove the burner compartment door, exposing the burner Some Models may vary compartment. 25-25-00 2. Disconnect gas line from gas valve so manifold can be re-5. Carefully remove the manifold assembly. moved. 6. Remove the orifices from the manifold and replace them with proper sized orifices. See Figure 36. 3. Disconnect wiring at gas valve. Be sure to note the proper location of all electrical wiring before being disconnected. 7. Tighten orifices so they are seated and gas-tight. See Figure 36. 4. Remove the four (4) screws holding the manifold and gas 8. Reassemble all parts in reverse order as removed. Be sure to valve to the manifold supports. Do not discard any screws. engage the main burner orifices in the proper openings in the See Figure 35. burners. 441 01 261302 [_ 9. After reassembling, turn gas on and check all joints for gas leaks using a soapy solution. All leaks must be repaired immediately. Clearances Measure from face of orifice to the batck side of the manifold, 29.3 +_11"5j mm "\k,,..k--..,.,.r_ LP Conversion the furnace rating plate for the LP conversion accessory kit part An accessory kit shall be used to convert to propane gas use, see number. 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: • Stable and blue flames. Dust may cause orange tips or wisps of yellow, but flames MUST NOT have solid, yellow tips. • Flames extending directly from burner into heat exchanger. • Flames do NOT touch sides of heat exchanger If any problems with main burner flames are noted, it may be necessary to adjust ga...

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