Aire-Flo 80AF1UH, Installation Instructions Manual

Page 1: ...allation adjustment alteration service or maintenance can cause property damage person al injury or loss of life Installation and service must be performed by a licensed professional HVAC in staller or equivalent service agency or the gas sup plier TABLE OF CONTENTS Unit Dimensions 2 80AF1UH Gas Furnace 3 Shipping and Packing List 3 Safety Information 3 Use of Furnace as a Construction Heater 4 Ge...

Page 2: ...ing GAS PIPING INLET Either Side Side Return Air Opening Either Side 1Bottom Return Air Opening FLUE OUTLET Top ELECTRICAL INLET Either Side SUPPLY AIR OPENING TOP VIEW A B 9 16 14 C D 3 4 27 3 4 705 19 7 16 494 23 1 2 597 1 1 2 38 9 1 8 232 Right 8 5 8 219 Left 5 3 8 137 Right 1 9 16 40 Left 33 838 3 1 8 79 1 15 16 49 14 356 9 16 14 3 76 Right 6 3 4 171 Left 2 FLUE OUTLET Either Side 3 OPTIONAL E...

Page 3: ...3 1 The National Fuel Gas Code is available from the following address American National Standards Institute Inc 11 West 42nd Street New York NY 10036 Clearances Adequate clearance must be made around the air open ings into the vestibule area In order to ensure proper unit operation combustion and ventilation air supply must be provided according to the current National Fuel Gas Code Vent installa...

Page 4: ...s are met D The vent system must be permanently installed per these installation instructions D A room thermostat must control the furnace The use of fixed jumpers that will provide continuous heating is not allowed D The return air duct must be provided and sealed to the furnace D Return air temperature range between 60 F 16 C and 80 F 27 C must be maintained D Air filters must be installed in th...

Page 5: ... reprinted material is not the complete and official posi tion of the ANSI on the referenced subject which is repre sented only by the standard in its entirety CAUTION Do not install the furnace in a corrosive or contami nated atmosphere Meet all combustion and ventila tion air requirements as well as all local codes CAUTION Insufficient combustion air can cause headaches nausea dizziness or asphy...

Page 6: ...d as unconfined air can be brought in by providing two permanent openings between the two spaces Each opening must have a minimum free area of 1 square inch 645 mm2 per 1 000 Btu 29 kW per hour of total input rating of all gas fired equipment in the confined space Each opening must be at least 100 square inches 64516 mm2 One opening shall be within 12 inches 305 mm of the top of the enclosure and ...

Page 7: ...ne square inch 645 mm2 per 4 000 Btu 1 17 kW per hour of the total input rating of all equip ment in the enclosure CHIMNEY OR GAS VENT WATER HEATER OUTLET AIR VENTILATION LOUVERS Each end of attic INLET AIR Ends 12 in above bottom FURNACE FIGURE 4 EQUIPMENT IN CONFINED SPACE ALL AIR FROM OUTSIDE OUTLET AIR INLET AIR WATER HEATER CHIMNEY OR GAS VENT NOTE Each air duct opening shall have a free area...

Page 8: ...d with a flexible mounting leg The bolt and washer must be removed before the furnace is placed into opera tion After the bolt and washer have been removed the rig id leg will not touch the blower housing FIGURE 6 RIGID LEG remove shipping bolt and washer 110P16C and 110P20C with 1 2 HP BLOWER MOTOR Upflow Applications Allow for clearances to combustible materials as indicated on the unit nameplat...

Page 9: ...h transition and filter Optional Return Air Base Upflow Applications Only For use with A B C and D cabinets FIGURE 9 NOTE Optional Side Return Air Filter Kits are not for use with Optional Return Air Base 1 Both the unit return air opening and the base return air opening must be covered by a single plenum or IAQ cabinet Minimum unit side return air opening dimensions for units requiring 1800 cfm o...

Page 10: ...ombustible materials as indicated on the unit nameplate Minimum clearances for closet or al cove installations are shown in figure 11 This furnace may be installed in either an attic or a crawl space Either suspend the furnace from roof rafters or floor joists as shown in figure 12 or install the furnace on a platform as shown in figure 13 Typical Horizontal Application Unit Suspended in Attic or ...

Page 11: ...ri can Society of Heating Refrigerating and Air Conditioning Engineers to size and install the supply and return air duct system This will result in a quiet and low static system that has uniform air distribution NOTE Do not operate the furnace in the heating mode with an external static pressure that exceeds 0 5 inches w c Higher external static pressures may cause erratic lim it operation Supply...

Page 12: ...late Lift the assembly and ro tate it 90 degrees clockwise or counterclockwise to ei ther the 3 o clock position or to 9 o clock position Re secure with four screws Gasket should be left in place 2 Use tin snips to cut preferred opening on the cabinet for repositioning the flue outlet Use the cut out piece as a cover plate to patch unused opening on cabinet UPFLOW POSITION Left Side Vent Discharge...

Page 13: ...ch on the other side of orifice plate and re connect pressure switch hose Re secure pressure switch wires Either pull excess wires through the blower compartment and secure using supplied wire tie or coil excess wire and secure to the gas manifold FLOW AIR Cut combustion air inducer tubing from 9 to 7 to avoid interference with inducer motor HORIZONTAL RIGHT POSITION Top Vent Discharge FIGURE 20 R...

Page 14: ...anical fas tener to firmly secure the vent pipe to the round collar of the flue transition If self drilling screws are used to attach the vent pipe it is recommended that three be used Drive one self drilling screw through the front and one through each side of the vent pipe and collar See figure 22 Install the first vent connector elbow at a minimum of six inches 152 mm from the furnace vent outl...

Page 15: ...standards lined or relined with suitable materials or replaced with a gas vent or chimney suitable for venting 80AF1UH series units The chimney passageway must be checked periodically to ensure that it is clear and free of obstructions Do not install a manual damper barometric draft regulator or flue restrictor between the furnace and the chimney Never connect a Category I appliance to a chimney t...

Page 16: ...l be assembled according to the manufacturer s instructions Joints between sections of single wall connector piping shall be fastened by screws or other approved means 13 When the vent connector used for Category I ap pliances must be located in or pass through a crawl space attic or other areas which may be cold that por tion of the vent connector shall be constructed of listed double wall type B...

Page 17: ... 22 339 5 22 65 30 130 39 219 49 330 10 29 59 40 121 51 206 64 315 15 35 53 48 112 61 195 76 301 20 0 0 97 0 202 0 349 0 540 2 10 75 14 149 18 250 20 377 5 21 71 29 143 38 242 47 367 10 28 64 38 133 50 229 62 351 15 34 58 46 124 59 217 73 337 20 48 52 55 116 69 206 84 322 30 0 0 100 0 213 0 374 0 587 2 9 81 13 166 14 283 18 432 5 21 77 28 160 36 275 45 421 10 27 70 37 150 48 262 59 405 15 33 64 44...

Page 18: ...5 1 21 50 33 89 47 142 64 220 2 22 53 35 96 49 153 66 235 3 24 55 36 102 51 163 68 248 20 1 21 54 33 99 46 157 62 246 2 22 57 34 105 48 167 64 259 3 23 60 35 110 50 176 66 271 30 1 20 62 31 113 45 181 60 288 2 21 64 33 118 47 190 62 299 3 22 66 34 123 48 198 64 309 TABLE 5 Common Vent Capacity Type B Double Wall Vents with Type B Double Wall Connectors Serving Two or More Category I Appliances Ven...

Page 19: ... exhaust fans fireplace damp ers and any other gas burning appliances to their pre vious mode of operation 7 If a venting problem is found during any of the preced ing tests the common venting system must be modi fied to correct the problem Resize the common venting system to the minimum vent pipe size determined by using the appropriate tables in Appendix G These are in the current stan dards of ...

Page 20: ...2 63 5 2 469 67 713 6400 181 22 4400 124 59 3530 99 95 3020 85 51 2680 75 88 2480 70 22 2230 63 14 2080 58 89 1950 55 22 1840 52 10 3 76 2 3 068 77 927 11300 319 98 7780 220 30 6250 176 98 5350 151 49 4740 134 22 4290 121 47 3950 111 85 3670 103 92 3450 97 69 3260 92 31 NOTE Capacity given in cubic feet m3 of gas per hour and based on 0 60 specific gravity gas GROUND JOINT UNION AUTOMATIC GAS VALV...

Page 21: ...e of the cabinet The make up box may be moved to the right side of the furnace to facilitate installation If the make up box is moved to the right side clip the wire ties that bundle the wires together The excess wire must be pulled into the blower compartment Secure the excess wire to the existing harness to protect it from damage INTERIOR MAKE UP BOX INSTALLATION FIGURE 28 BOX Right Side Refer t...

Page 22: ...e an external relay relay Generator Use Voltage Requirements The following requirements must be kept in mind when specifying a generator for use with this equipment The furnace requires 120 volts 10 Range 108 volts to 132 volts The furnace operates at 60 Hz 5 Range 57 Hz to 63 Hz The furnace integrated control requires both polarity and proper ground Both polarity and proper grounding should be ch...

Page 23: ...Page 23 FIGURE 29 80AF1UH Schematic Wiring Diagram ...

Page 24: ... to control or control harware fault detected LED On Normal operation 1 Flash Flame present with gas vavle de energized 2 Flashes Pressure switch closed with combustion air inducer de energized 3 Flashes Pressure switch open with combus tion air inducer energized 4 Flashes Primary limit switch open 5 Flashes Rollout switch open 6 Flashes Pressure switch cycle lockout 7 Flashes Lockout burners fail...

Page 25: ...he unit 4 This furnace is equipped with an ignition device which automatically lights the burners Do not try to light the burners by hand 5 Remove the upper access panel 6 Move switch on gas valve to OFF Do not force See figure 31 7 Wait five minutes to clear out any gas If you then smell gas STOP Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instruc tions If...

Page 26: ...iction Remove temporary gas meter if installed NOTE To obtain accurate reading shut off all other gas appliances connected to meter Supply Pressure Measurement A threaded plug on the inlet side of the gas valve provides access to the supply pressure tap Remove the threaded plug install a field provided barbed fitting and connect a manometer to measure supply pressure See table 9 for proper line pr...

Page 27: ... the blower These auto reset limits are factory set and re quire no adjustment Flame Rollout Switches This manually reset switches are located on the top of the burner box Pressure Switch The pressure switch is located in the heating compartment adjacent to the combustion air inducer The switch checks for proper combustion air inducer operation before allow ing ignition trial The switch is factory...

Page 28: ... hour of continuous thermostat demand for heat the in ternal lockout will break and remake thermostat demand to the furnace and automatically reset the integrated control to begin the ignition sequence Service WARNING ELECTRICAL SHOCK FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in dangerous operation serious injury death or property damage Improper servicing cou...

Page 29: ...ect two 2 adjacent furnaces with a common plenum such that they operate as one 1 large unit When twinned the circulating blower speeds are synchro nized between the furnaces If either furnace has a need to run the blower both furnaces will run the blower on the same speed The cooling speed has highest priority fol lowed by heating speed and fan speed Field installation of twinning consists of conn...

Page 30: ...te furnace model number listed on the CSA International nameplate Example 80AF1UH045P12A 01 All service must be per formed by a licensed professional installer or equivalent service agency or gas supplier Cabinet Parts Upper access panel Blower panel Top cap Control Panel Parts Transformer Integrated control Door interlock switch Circuit breaker Blower Parts Blower wheel Blower housing Motor Motor...

Page 31: ...Leak Tested Supply Line Pressure W C ________ 1 VENT EXHAUST PIPE Secure to Unit Elbows Secured to Pipe Vent Pipe Supported 2 Roof Flashing water tight 3 DUCT SYSTEM SUPPLY AIR DUCT Sealed Insulated if necessary Registers Open and Unobstructed RETURN DUCT Sealed Filter Installed and Clean Grilles Unobstructed 4 5 INTEGRATED CONTROL DIP Switches Set if applicable Appropriate Links in Place if appli...

Page 32: ...se ________ 5 COOLING MODE INDOOR BLOWER AMPS______ 3 TEMPERATURE DROP Return Duct Temperature _________ Supply Duct Temperature _ _______ 4 5 6 7 DRAIN LINE Leak Free THERMOSTAT Adjusted and Programmed Operation Explained to Owner RETURN AIR RETURN AIR SUPPLY AIR 6 7 Blower Motor Amps 3 Thermostat 2 Combustion CO2 Duct Static Gas Manifold Pressure 1 4 5 Temperatures Filter Temperature Drop ______...