Arcoaire A Series, Installation, Start-Up, Operating And Service And Maintenance Instructions

Page 1: ...Btuh per Hour 21 EXTERIOR MASONRY CHIMNEY FAN NAT INSTALLATIONS WITH TYPE B DOUBLE WALL VENT CONNECTORS NFPA AGA 22 VENTING NOTES FOR Fig 31 Fig 43 25 START UP ADJUSTMENT AND SAFETY CHECK 25 GENERAL 25 Table 10 Altitude Derate Multiplier for U S A 27 Table 11 Orifice Size and Manifold Pressure In W C for Gas In put Rate 28 Table 12 Orifice Size And Manifold Pressure In W C For Gas Input Rate 29 Ta...

Page 2: ...lation in a residential garage must be installed as specified in the warning box in the Location section 9 The furnace may be used for construction heat provided that the furnace installation and operation complies with the first CAUTION in the LOCATION section of these instructions 10 These Multipoise Gas Fired Furnaces are CSA formerly A G A and C G A design certified for use with natural and pr...

Page 3: ...nstallation in a Garage CODES AND STANDARDS Follow all national and local codes and standards in addition to these instructions The installation must comply with regulations of the serving gas supplier local building heating plumbing and other codes In absence of local codes the installation must comply with the national codes listed below and all authorities having jurisdiction In the United Stat...

Page 4: ...ctrostatic discharge can affect electronic components Follow the Electrostatic Discharge Precautions Procedure listed below during furnace installation and servicing to protect the furnace electronic control Precautions will prevent electrostatic discharges from personnel and hand tools which are held during the procedure These precautions will help to avoid exposing the control to electrostatic d...

Page 5: ...having a volume of at least 50 cubic feet per 1 000 Btuh input rating for all gas appliances installed in the space Spaces having less than 50 cubic feet per 1 000 Btuh require the OUTDOOR COMBUSTION AIR METHOD Spaces having at least 50 cubic feet per 1 000 Btuh may use the INDOOR COMBUSTION AIR STANDARD or KNOWN AIR INFILTRATION METHOD Outdoor Combustion Air Method 1 Provide the space with suffic...

Page 6: ...quations from the current edition of National Fuel Gas Code ANSI Z223 1 NFPA 54 1 For other than fan assisted appliances such as a draft hood equipped water heater A04002 1 SQ IN PER 4000 BTUH DUCTS TO OUTDOORS 1 SQ IN PER 4000 BTUH CIRCULATING AIR DUCTS VENT THROUGH ROOF D B A C E 1 SQ IN PER 4000 BTUH DUCT TO OUTDOORS CIRCULATING AIR DUCTS 1 SQ IN PER 2000 BTUH 1 SQ IN PER 2000 BTUH DUCTS TO OUT...

Page 7: ...lation and dilution of flue gases However in buildings with unusually tight construction additional air MUST be provided using the methods described in the Outdoor Combustion Air Method section 4 Unusually tight construction is defined as construction with a Walls and ceilings exposed to the outdoors have a continuous sealed vapor barrier Openings are gasketed or sealed and b Doors and openable wi...

Page 8: ...hole in floor see Table 3 and Fig 9 3 Construct plenum to dimensions specified see Table 3 and Fig 9 4 If downflow subbase is used install as shown see Fig 10 If Coil model number END4X ENW4X or Coil Casing model number NAEA is used install as shown see Fig 11 NOTE It is required that the perforated supply air duct flanges be completely folded over or removed from furnace when installing the furna...

Page 9: ...e required 11 13 16 284 19 483 13 7 16 341 20 5 8 600 Downflow Applications on Combustible Flooring with Cased Coil subbase not required 12 5 16 319 19 483 13 5 16 338 20 508 17 1 2 445 Upflow Applications on Combustible or Noncombustible Flooring subbase not required 16 406 21 5 8 549 16 5 8 422 22 1 4 565 Downflow Applications on Noncombustible Flooring subbase not required 15 7 8 403 19 483 16 ...

Page 10: ...r To prevent screws from pulling out use 2 8 x 3 4 in 19 mm screws into the side and 2 8 x 3 4 in 19 mm screws in the bottom of the furnace casing for each strap see Fig 14 and Fig 15 If the screws are attached to ONLY the furnace sides and not the bottom the straps must be vertical against the furnace sides and not pull away from the furnace sides so that the strap attachment screws are not in te...

Page 11: ...w and 10 ft 3 M of main duct to the first branch take off may require internal acoustical lining As an alternative fibrous ductwork may be used if constructed and installed in accordance with the latest edition of SMACNA construction standard on fibrous glass ducts Both acoustical lining and fibrous ductwork shall comply with NFPA 90B as tested by UL Standard 181 for Class 1 Rigid air ducts SUPPLY...

Page 12: ...05 960 915 915 825 785 740 700 0702116 Gray Cooling Do not use for heating 1735 1685 1640 1595 1545 1495 1450 1405 1360 1310 Yellow Alt Cooling or alt Heating 1480 1435 1395 1340 1290 1240 1190 1135 1085 1030 Blue Heating or alt Cooling 1315 1275 1225 1180 1135 1085 1030 975 915 860 Orange Alt Cooling or alt Heating 1135 1080 1030 985 935 885 835 770 705 645 Red Alt Cooling Do not use for heating ...

Page 13: ...e of both side inlets a combination of 1 side and the bottom or the bottom only will ensure adequate return air openings for airflow requirements above 1800 CFM Fig 17 Dimensional Drawing 1102420 Gray Cooling Do not use for heating 2250 2190 2130 2070 2005 1950 1885 1820 1755 1685 Blue Heating or alt Cooling 1995 1930 1865 1800 1740 1670 1605 1535 1465 1400 Yellow Alt Cooling or alt Heating 1540 1...

Page 14: ...E In the state of Massachusetts 1 Gas supply connections MUST be performed by a licensed plumber or gas fitter 2 When flexible connectors are used the maximum length shall not exceed 36 inches 915 mm 3 When lever handle type manual equipment shutoff valves are used they shall be T handle valves 4 The use of copper tubing for gas piping is NOT approved by the state of Massachusetts Table 5 Dimensio...

Page 15: ...n 3 mm NPT plugged tapping accessible for test gauge connection MUST be installed immediately upstream of gas supply connection to furnace and downstream of manual equipment shutoff valve WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury death and or property damage Never purge a gas line into a combustion chamber Never test for gas leaks with an open ...

Page 16: ...h electrical circuit with a properly sized fuse or circuit breaker for this furnace See Table 7 for wire size and fuse specifications A readily accessible means of electrical disconnect must be located within sight of the furnace NOTE Proper polarity must be maintained for 115 v wiring If polarity is incorrect control LED status indicator light will show a status code 10 and furnace will NOT opera...

Page 17: ... BLOWER DOOR SWITCH WHT BLK WHT BLK NOTES Connect Y terminal in furnace as shown for proper blower operation Some thermostats require a C terminal connection as shown If any of the original wire as supplied must be replaced use same type or equivalent wire W Y GND THERMOSTAT TERMINALS 1 2 3 WARNING FIRE HAZARD Failure to follow this warning could result in personal injury death or property damage ...

Page 18: ...er wires into electrical box 9 Remove cover from furnace J Box 10 Route field ground wire through holes in electrical box and casing and into furnace J Box 11 Reattach furnace J Box to furnace casing with screws removed in Step 4 12 Secure field ground wire to J Box green ground screw 13 Complete electrical box wiring and installation Connect line voltage leads see Fig 24 Use best practices NEC in...

Page 19: ...used to the inch male quick connect HUM terminal and EAC 2 inch quick connect The HUM terminal is energized when the inducer motor is energized IDR see Fig 28 and Fig NOTE A field supplied 115 v controlled relay connected to EAC terminals may be added if humidifier operation is desired during blower operation NOTE DO NOT connect furnace control 24VAC HUM terminal to H humidifier terminal on humidi...

Page 20: ...hat terminates outdoors 3 Vent connectors serving Category I furnaces shall not be connected into any portion of a mechanical draft system operating under positive pressure 4 Do not vent this appliance with any solid fuel burning appliance 5 Category I furnaces must be vented vertically or nearly vertically unless equipped with a listed power venter 6 Do not vent this appliance into an unlined mas...

Page 21: ...tions Determine that there is no blockage or restriction leakage corrosion 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 no...

Page 22: ...orrosion in the furnace and or venting system Derating is permitted only for altitudes above 2000 ft 610 M 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 ...

Page 23: ...nput of the furnace being vented Follow all manufacturer s installation requirements for venting and termination included with the listed mechanical venter Caution For the following applications use the minimum vertical vent heights as specified below For all other applications follow exclusively the National Fuel Gas Code NOTE All vent configurations must also meet National Fuel Gas Code venting ...

Page 24: ...ft Application Vent Elbow Left A03208 Fig 36 Upflow Application Vent Elbow Up A03212 Fig 37 Downflow Application Vent Elbow Up then Right A03218 Fig 38 Horizontal Right Application Vent Elbow Right SEE NOTES 1 2 4 5 7 8 9 on the page following these figures SEE NOTES 1 2 4 5 6 7 8 9 on the page following these figures SEE NOTES 1 2 4 7 8 9 on the page following these figures SEE NOTES 1 2 4 7 8 9 ...

Page 25: ...ecification Sheet for accessory listing 6 Factory authorized accessory Downflow Vent Guard Kit required in downflow installations with lower vent configuration See Specification Sheet for accessory listing 7 Chimney Adapter Kit may be required for exterior masonry chimney applications Refer to Chimney Adapter Kit for sizing and complete application details See Specification Sheet for accessory lis...

Page 26: ...if any thermostat signal is present at the control 4 Component test sequence is as follows see service label attached to furnace or Fig 44 a LED will display previous status code 4 times NOTE If no previous code is present go directly to b b Inducer motor starts and continues to run until Step f of component test sequence c Hot surface igniter is energized for 15 sec then off d Blower motor operat...

Page 27: ...ed orifices See EXAMPLE 1 3 Adjust manifold pressure to obtain correct input rate a Turn gas valve ON OFF switch to OFF b Remove manifold pressure tap plug from gas valve see Fig 21 c Connect a water column manometer or similar device to manifold pressure tap d Turn gas valve ON OFF switch to ON e Manually close blower door switch f Set thermostat to call for heat g Remove regulator seal cap and t...

Page 28: ...cts b When thermometer readings stabilize subtract return air temperature from supply air temperature to determine air temperature rise NOTE If the temperature rise is outside this range first check 1 Gas input for heating operation 2 Derate for altitude if applicable 3 Return and supply ducts for excessive restrictions causing static pressures greater than 0 50 In W C c Adjust air temperature ris...

Page 29: ...k with Ammeter WARNING FURNACE OVERHEATING HAZARD Failure to follow this caution may result in reduced furnace life Recheck temperature rise It must be within limits specified on the rating plate Recommended operation is at the mid point of rise range or slightly above Table 13 Gas Rate Cu Ft Hr SECONDS FOR 1 REVOLUTION SIZE OF TEST DIAL SECONDS FOR 1 REVOLUTION SIZE OF TEST DIAL 1 Cu Ft 2 Cu Ft 5...

Page 30: ... turn thermostat below room temperature or from HEAT to OFF and turn 115v power OFF then back ON 3 Check Pressure Switch This control proves operation of the draft inducer blower a Turn off 115 v power to furnace b Disconnect inducer motor lead wires from wire harness c Turn on 115 v power to furnace d Set thermostat to call for heat and wait 1 minute When pressure switch is functioning properly h...

Page 31: ...son for rust corrosion soot or excessive dust If necessary have furnace and burner serviced by a qualified service agency 5 Inspect the vent pipe vent system before each heating season for rust corrosion water leakage sagging pipes or broken fittings Have vent pipes vent system serviced by a qualified service agency 6 Inspect any accessories attached to the furnace such as a humidifier or electron...

Page 32: ...hen reassembling d Remove bolts holding motor to blower housing and slide motor out of wheel 40 10 in lb when reassembling e Remove blower wheel from housing f Clean wheel and housing 10 Reassemble motor and blower by reversing steps 9f through 11a finishing with 9a Be sure to reattach ground wire to the blower housing NOTE Refer to Table 4 for motor speed lead relocation if leads were not identif...

Page 33: ...t vent connector from furnace vent elbow 4 For downflow or horizontal furnace having an internal vent pipe remove internal vent pipe within the casing 5 Disconnect wires to the following components Mark wires to aid in reconnection of be careful when disconnecting wires from switches because damage may occur a Draft safeguard switch b Inducer motor c Pressure switch es d Limit over temperature swi...

Page 34: ...a heartbeat as long as no faults are detected After the 90 sec period the furnace will respond to the thermostat normally The blower door must be installed for power to be conducted through the blower door interlock switch ILK to the furnace control CPU transformer TRAN inducer motor IDM blower motor BLWM hot surface igniter HSI and gas valve GV 1 Heating The wall thermostat calls for heat closing...

Page 35: ...t the end of the blower ON delay period at HEAT speed When the thermostat calls for cooling the blower motor BLWM will operate at COOL speed When the thermostat is satisfied the blower motor BLWM will operate an additional 90 sec on COOL speed before reverting back to continuous blower speed When the R to G circuit is opened the blower motor BLWM will continue operating for an additional 5 sec if ...

Page 36: ...tion Start Up Operating and Service and Maintenance Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 36 WIRING DIAGRAM A190267 Fig 50 Wiring Diagram ...

Page 37: ... A Installation Start Up Operating and Service and Maintenance Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 37 TROUBLESHOOTING A190281 ...

Page 38: ...allation Start Up Operating and Service and Maintenance Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 38 A190282 Fig 51 Troubleshooting Guide ...

Page 39: ... safeguard switch TO OBTAIN INFORMATION ON PARTS Consult your installing dealer or classified section of your local telephone directory under Heating Equipment or Air Conditioning Contractors and Systems headings for dealer listing by brand name or contact International Comfort Products Consumer Relations Department P O Box 128 Lewisburg TN 37091 USA 931 270 4100 Have available the product model n...

Page 40: ...ion Date 03 20 Catalog No 441 01 3401 00 Replaces 441 01 3400 02 N80ESN N80ESL Series A Installation Start Up Operating and Service and Maintenance Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 40 ...