International comfort products H8UH5050B12C2 Installation Instructions Manual Download Page 34 | Manualshive

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441 01 5003 01

Specifications are subject to change without notice

Wiring Diagram H8UH5, MUF, HL

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Summary of Contents for H8UH5050B12C2

Page 1: ...fy unsafe practices that may 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 Ins...

Page 2: ...setting ____ Fan Time OFF Setting ___ Manual Gas Shut Off Upstream of Furnace Drip Leg Gas Valve turned ON Type of Gas Natural Propane Filter Type and Size Calculated Firing Rate See Checks and Adjus...

Page 3: ...air shall also be handled by a duct s sealed to the furnace casing and terminating outside the space containing the furnace A gas fired furnace for installation in a residential garage must be instal...

Page 4: ...ne 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 Combustion Ventilation Air section C...

Page 5: ...16 49 183 4 476 J Installation Positions This furnace can be installed in an upflow horizontal either left or right airflow position DO NOT install this furnace on its back For the upflow position the...

Page 6: ...e 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 be installed at ground level i...

Page 7: ...installation is complete check that all appliances have adequate combustion air and are venting properly See Venting And Combustion Air Check in Gas Vent Installation Section in this manual Contamina...

Page 8: ...ow and b Outdoor openings located as required in the Outdoor Combustion Air Method above and c Outdoor openings sized as follows 1 Calculate the Ratio of all Indoor Space volume divided by required vo...

Page 9: ...lowing equations from the National Fuel Gas Code ANSI Z223 1 NFPA 54 2006 9 3 2 2 1 For other than fan assisted appliances such as a draft hood equipped water heater 1000 Btu hr 21 ft3 I other Volume...

Page 10: ...ry 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 maso...

Page 11: ...permitted as outlined in the NFGC venting tables Follow all safe venting requirements Note See section Masonry Chimney Venting 6 Horizontal Venting Category I Furnaces With External Power Venters In...

Page 12: ...w vent terminal of the furnace to a dryer or water heater vent or other appliance s direct vent intake or exhaust N Clearance from a plumbing vent stack 3 91 cm 3 91 cm O Clearance above a paved sidew...

Page 13: ...formation on condensate drains b Indicates the chimney exceeds the maximum permissible size in the tables the chimney should be rebuilt or relined to conform to the requirements of the appliances bein...

Page 14: ...anufacturer s installation instructions CHIMNEY INSPECTION CHART For additional requirements refer to the National Fuel Gas Code NFPA 54 ANSI Z223 1 2006 and ANSI NFPA 211 2006 Chimneys Fire places Ve...

Page 15: ...ring disconnected 4 Remove the four 4 screws holding the manifold and gas valve to the manifold supports Do Not discard any screws 5 Carefully remove the manifold assembly 6 Remove the Natural gas bra...

Page 16: ...ing and Adding Propane Low Pressure Switch Propane Low Pressure Switch Detail Alterative installation Figure 13 Right pipe entry O N O F F 25 25 51 Left Hand gas pipe entry detail 25 25 53 Drip Leg Un...

Page 17: ...may vary in appearance 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 Fi...

Page 18: ...pacity can be determined by using the NEC or CEC Furnace must be installed so the electrical components are protected from water and connected to its own separate circuit Junction Box J Box Relocation...

Page 19: ...arning could result in personal injury or death 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 FIRE HAZARD Failur...

Page 20: ...ening shall be accessible when the furnace is installed and shall be of such a size that the heat exchanger can be viewed for possible openings using light assistance or a probe can be inserted for sa...

Page 21: ...cated from sheet metal Figure 24 Insert filter into side clips first and push filter back until it is fully engaged into back clip Figure 23 Bottom Mounted Filter 25 24 18 1 9 23 cm Center clip side t...

Page 22: ...his furnace it must be installed on the discharge side of the furnace to avoid condensation in the heat exchanger All furnaces are designed with a break away duct flange on the supply air side of the...

Page 23: ...ain burner orifices Refer to Table 5 Table 6 Table 7 or Table 8 for correct orifice size and manifold pressure for a given heating value and specific gravity for natural and propane gas Operation Abov...

Page 24: ...ATION FEET ABOVE SEA LEVEL 0 to 2000 2001 to 3000 3001 to 4000 4001 to 5000 5001 to 6000 6001 to 7000 7001 to 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 Conversion 1 i...

Page 25: ...nt door exposing the burner compartment 2 Disconnect gas line from gas valve so manifold can be removed 3 Disconnect wiring at gas valve Be sure to note the proper location of all electrical wiring be...

Page 26: ...eed Chart Wire Color Motor Speed Black High Orange Med High Blue Med Low Red Low Med High speed may not be provided on all models 2 Change the heat or cool blower motor speed by removing the motor spe...

Page 27: ...s warning could result in personal injury death 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...

Page 28: ...s 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 co...

Page 29: ...32 OFF 24VAC or 220VAC 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...

Page 30: ...2 H8UH5100F14C2 H8UH5125J20C2 H8UH5140J20C2 MUF050W3C2 MUF075W3C2 MUF100W3C2 MUF125W5C2 MUF140W5C2 HL12H3TRC2 HL18H3TRC2 HL25H3TRC2 HL31H4TRC2 HL34H5TRC2 Save This Manual For Future Reference Internat...

Page 31: ...e Series Hot Surface Combustion Flue Outlet Size Inches 4 4 4 4 4 Limits Controls Thermal Sensor F Limit Control 300 See Parts List 300 See Parts List 300 See Parts List 300 See Parts List 300 See Par...

Page 32: ...7 587 224 1 236 293 392 552 249 0 204 266 362 523 NOTE 1 Data based on Bottom Only return 2 Data based on Both Sides or Bottom Plus One Side 3 Reduce Airflow by 5 if Bottom ONLY return 4 Gray area is...

Page 33: ...Bottom Only return 2 Data based on Both Sides or Bottom Plus One Side 3 Reduce Airflow by 5 if Bottom ONLY return 4 Gray area is above maximum temperature rise range Filter Size CFM L S 14 X 25 1400...

Page 34: ...34 441 01 5003 01 Specifications are subject to change without notice Wiring Diagram H8UH5 MUF HL...

Page 35: ...to change without notice Parts for H8UH5 MUF HL 25 23 49a 1 S 14 15 W 10 U V 16 L 16 17 N 5 4 3 9 B C A 2 1 BB AA 18 Y X CC M D T S P Z F E G F U 12 11 7 D GG FF EE HH 8 7 J 13 19 Representative draw...

Page 36: ...8 Furnace Control 1172550 1 1 1 1 1 9 Switch Interlock 1171981 1 1 1 1 1 10 Burner Assembly 1172884 1172965 1172966 1172967 1172968 1 1 1 1 1 11 Flame Sensor 1172827 1 1 1 1 1 12 Ignitor 1172533 1 1 1...

Page 37: ...Cover Junction box 1012350 1 1 1 1 1 D Partition Blower 1014009 1014010 1014011 1014013 1 1 1 1 1 E Housing Blower 1172885 1172969 1172970 1 1 1 1 1 F Hanger Blower 1012328 2 2 2 2 2 G Panel Blower C...

Page 38: ...0 1 1 1 1 1 Z Gasket Combustion Blower 1014385 1 1 1 1 1 AA Partition Front Ht Exchanger 1013543 1013521 1013546 1013548 1013549 1 1 1 1 1 BB Gaskets Heat Exchanger 1013991 1013992 1013993 1013994 101...

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