Aire-Flo A050B3 Installation And Servicing Instructions Download Page 11 | Manualshive

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Summary of Contents for A050B3

Page 1: ...ss of life Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance Installation and service must be performed by a qualified installer service agency or the gas supplier Installation by an unqualified person may lead to equipment damage and or a hazardous condition which may cause bodily injury and harm and as such at the sole discretion of...

Page 2: ...for the detection of leaks to check all connections as specified in The Gas Connection section on page 16 of these instructions 6 Always install furnace to operate within the furnace s intended temperature rise range with a duct system which has an external static pressure within the allowable range as specified in Furnace Specifications on page 3 of these instructions See furnace rating plate 7 W...

Page 3: ... 4 4 MAX OVER CURRENT PROTECTION 15 15 15 15 15 15 20 MAX UNIT AMPS 9 9 9 9 11 7 6 9 11 7 11 7 11 7 ELECTRICAL SUPPLY MIN WIRE SIZE AWG 14 14 14 14 14 14 14 TEMPERATURE RISE RANGE 45 75 45 75 30 60 45 75 45 75 30 60 45 75 NET WEIGHT LBS 105 113 134 141 141 159 167 REDUCER SUPPLIED WITH FURNACE WHEN CONNECTION SIZE IS DIFFERENT THAN PIPE DIA REQUIRED H FOR FLUE VENT PIPE TOP VENT CONNECTION H FLUE ...

Page 4: ... 1425 1690 1085 1335 1605 975 1225 1470 A100B5 12X12 WHEEL 1 2HP MOTOR LOW MED HIGH 1440 2010 2530 1405 1985 2470 1365 1955 2425 1315 1910 2355 1270 1840 2270 1200 1770 2195 1155 1695 2100 1060 1630 1995 985 1535 1880 895 1395 1760 A125B5 12X12 WHEEL 1 2HP MOTOR LOW MED HIGH 1440 2010 2530 1405 1985 2470 1365 1955 2425 1315 1910 2355 1270 1840 2270 1200 1770 2195 1155 1695 2100 1060 1630 1995 985 ...

Page 5: ...H ROLL OUT SWITCH blower interlock CONDENSING UNIT MANJAL RESET AUXILIARY LIMIT TRANSfKHR UW VOLT FUSE IN LINE DN1CTIDN INDUCER HUB SWITCH MJIbS 1 MAKE FIBJ POe SUPPLY COWECTKNS TD BLACK AND WHITE WIRES CAPPED WITH DRANE WIRE NUTS 2 WARNING UNIT MUST BE GROUNDS WRING MUST CDNRflM JD N E C AND LDCAL CKS 3 IF ANY IF THE ORIGINAL VIE AS SUPPL1E WITH TfE FURNACE MUST BE REPLACED IT MUST BE RffLACEO WI...

Page 6: ...69 or the American Gas Association 1515 Wilson Boulevard Arlington VA 22209 or the Canadian installation codes obtainable from Canadian Standards Association 178 Rexdale Boulevard Etobicoke Ontario Canada M9W 1R3 This furnace is designed for minimum continuous return air temperature of 60 F dB or intermittent operation down to 55 F dB such as when used with a night setback thermostat Return air mu...

Page 7: ...ed from the ceiling it will be necessary to use steel pipe straps around each end of the furnace These straps should be attached to the furnace with sheet metal screws and to the rafters with bolts The furnace may also be suspended by using an angle iron frame bolted to the rafters See Table on page 3 for size and weight of furnace Care must be taken to allow for service access If a furnace is to ...

Page 8: ... the facilities for ventilation permits satisfactory combustion of gas proper venting and maintenance of ambient temperature at safe limits under normal conditions of use The furnace shall be located so as not to interfere with proper circulation of air In addition to air needed for combustion ventilation in the form of process air must be provided as required for cooling of equipment or material ...

Page 9: ...00 160 000 MIN FREE AREA Sq In 100 100 100 100 120 140 160 ROUND DUCT Dia In 12 12 12 12 13 14 15 MAX EXAMPLE 50 000 Btuh Furnace 10 000 Btuh Water Heater 60 000 Btuh Total Input 12 Dia Round Duct F0000264 If ventilation and or combustion air must be supplied to the Confined Space from outside the building structure two permanent openings to the outdoors must be created Each opening must have a fr...

Page 10: ...e furnace area Neither opening can be blocked at any time See Figure 6 Figure 6 CONFINED SPACE OUTDOOR AIR THROUGH HORIZONTAL DUCTS F0000266 Figure 5 CONFINED SPACE OUTDOOR AIR FROM ATTIC CRAWL SPACE VENTILATION LOUVERS TOP AIR OPENING 1 SQ IN 4 000 BTUH OF TOTAL INPUT BOTTOM AIR OPENING 1 SQ IN 4 000 BTUH OF TOTAL INPUT 1 _DUCT MUST EXTEND ABOVE ATTIC INSULATION WAT WATER HEATER 1 SQ IN 2000 BTUH...

Page 11: ...e blower inlet there should be at least one 90 air turn between blower and return grille Further reduction in sound can be accomplished by installing acoustical air turning vanes and or lining the inside of the duct with acoustical material It is recommended that the supply duct be provided with a removable access panel This opening shall be accessible when the furnace is installed and shall be of...

Page 12: ...tion of either the cooling unit or furnace unless the damper is in the full cool or full heat position A WARNING The coil MUST be installed on the air discharge side of the furnace Under no circumstances should the air flow be such that cooled conditioned air can pass over the furnace heat exchanger This will cause condensation in the heat exchanger and possible failure of the heat exchanger that ...

Page 13: ...of one of the following auxiliary draft inducer kits Table 4 AUXILIARY DRAFT INDUCERS Vent Kit MFR Field Controls Co Tjernlund Products Inc Model SWG 4G SS1 OR SS1C GPAK J GPAK 1 Furnace Input 50000 75000 100000 or 125000 50000 75000 100000 or 125000 50000 75000 or 100000 100000 or 125000 See rating label on this furnace for input Vent Length Max 60 ft Min 12 ft Vent Diameter 4 in Follow instructi...

Page 14: ...e cabinet See Figure 9 2 Disconnect the pressure switch tubing from the combustion blower 3 Remove the four 4 screws that secure the combustion blower adaptor plate to the flue collector box taking care to support the blower assembly so that it does not fall 4 Rotate the blower 90 degrees clockwise so that the outlet of the blower is pointing toward the right side panel of the furnace 5 Insure tha...

Page 15: ...any other gas fired burning appliance to their previous conditions of use ELECTRICAL CONNECTIONS When installed the furnace must be electrically grounded in accordance with local codes or in the absence of local codes with the U S National Electrical Codes ANSI NFPA 70 or CSA Standard C22 1 Part 1 Canadian Electrical Code For proper installation refer to furnace rating label for electrical ratings...

Page 16: ...n may result causing property damage personal injury or loss of life AWARNING The furnace and its individual shutoff valve must be disconnected from the supply piping system during any pressure testing of that system at test pressures in excess of 1 2 PSIG 3 5kPa or 14 w c The furnace must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any press...

Page 17: ...nergizes the gas valve and runs the indoor blower motor on heat speed While the Ilimit switch is open the control flashes 4 on the LED Check for a restriction in the duct system i e dirty filters blocked ductwork closed registers When the switch re closes the control runs the indoor blower through the selected fan off delay If the call for heat is still present when the limit switch closes the con...

Page 18: ...RANCE Main Burners BURNER HEAT EXCHANGER GAS MANIFOLD F0000258 BURNER FLAME Blue Only PRESSURE REGULATOR ADJUSTMENT UNDER CAP SCREW INLET PRESSURE TAP INLET VR8205 GAS CONTROL r KNOB WIRING TERMINALS 2 MANIFOLD PRESSURE TAP OUTLET OFF ON F0000319 AWARNING Do not attempt to manually light the burners Failure to follow this warning can lead to electrical shock that could result in bodily harm 7 Rech...

Page 19: ...Feet 200 190 180 172 164 156 150 144 138 134 128 124 120 4 Calculate the furnace input using the following formula Determining Furnace Input NOTE All access doors must be in place when checking gas input 1 Turn OFF all other gas appliances except for pilot burners served by the same gas meter 2 With furnace operating in full heat cycle note how many seconds it takes for one full revolution of the ...

Page 20: ...pressure The appropriate manifold pressures based on the elevation and the heating value can be found in Table 7 TABLE 7 High Altitude Manifold Pressure Derate with standard 42 orifice Natural 54 orifice LP sizes Altitude Feet 0 999 1000 1999 2000 2999 3000 3999 4000 4999 5000 5999 6000 6999 Heating Value of Natural Gas BTU FT3 900 4 32 4 32 3 67 3 38 3 11 2 88 2 64 950 3 88 3 88 3 29 3 04 2 79 2 ...

Page 21: ...the cause of the rollout correct the condition that caused it and reset the flame rollout switch FLAME ROLLOUT SWITCH ROLLOUT SWITCH LOCATIONS F0000270 Pressure Switch Check To check the operation of the pressure switch vent safety control remove the vent adaptor from the combustion blower Place the furnace into operation Gradually cover up the blower outlet the main burners should shut OFF Remove...

Page 22: ... INO THERMOSTAT CALL FOR HEAT ENDS MAIN VALVE CLOSES I COMBUSTION AIR BLOWER OFF AFTER POST PURGE 15 SECONDS CIRCULATING AIR FAN OFF AFTER DELAY WAJT FOR NEXT CALL FOR HEAT WAIT FOR AIR PROVING SWITCH TO OPEN FLASH 3 FIVE MINUTE WAIT PERIOD H WAIT FOR LIMIT CIRCUIT TO CLOSE FLASH 4 COMBUSTION AIR BLOWER OFF 60 SECONDS BETWEEN TRIAL PURGE MAIN VALVE CLOSES FAILED TRIALS FOR IGNITION LESS THAN THREE...

Page 23: ...e openings of the primary heat exchangers 6 Vacuum the length of each heat exchanger tube using a straight attachment into the burner openings and the flue openings 7 Replace the flue collector box burner opening inlet plate and burner manifold assembly Insure that all gaskets are properly positioned and that no leaks exist 8 Reattach all wiring and piping as per the wiring diagram and installatio...

Page 24: ... 2 screws located in the blower compartment that secure the blower legs to the blower partition panel 7 Slide the blower forward about two 2 inches This will disengage the rear of the blower legs from the blower partition Rotate the front of the blower down to clear the control box mounting tabs on the underside of the blower partition and continue sliding the blower forward until it is out of the...

Page 25: ...1 Pressure switch stuck closed 2 Pressure switch captured or out of calibration replace 3 Inducer and inducer wiring not connected 4 Low line voltage power supply 5 Obstructions or restrictions in appliance air intake or exhaust flue system that prevent proper combustion air flow 6 Circulating air blower not operating 7 Open auxiliary temperature limit 1 Open high temperatures limit 2 Open manual ...

Page 26: ...WIRING DIAGRAM 24VAC 120 VAC 120 VAC NBJTRAL HUMIDIFIER INDUCER MDTOR HPT SURFACE IGNITDR 120 VAC HPT F0000400 20543402 Issue 0406 Page 26 of 26 ...

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