Carrier F96VTN, Installation Instructions Manual

Page 1: ...tion 20 Opening Dimensions 20 Air Delivery CFM 22 Maximum Capacity of Pipe 27 Electrical Data 29 Combustion Air Vent Pipe Fitting Cement Material 55 Vent Termination Kit for Direct Vent 2 Pipe Systems 38 Hangar Spacing 52 Maximum Allowable Exposed Vent Lengths Insulation 48 Maximum Equivalent Vent Length 44 Deductions from Maximum Equivalent Vent Length 44 Altitude Derate Multiplier for U S A 59 B...

Page 2: ...grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS 4 INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless up...

Page 3: ...16 406 8 3 4 222 133 60 3 0601412A 14 3 16 361 12 1 2 319 12 9 16 322 7 1 8 181 132 59 9 0601714A 17 1 2 445 15 7 8 403 16 406 8 3 4 222 139 63 0 0801716A 17 1 2 445 15 7 8 403 16 406 8 3 4 222 147 66 7 0802120A 21 533 19 3 8 492 19 1 2 495 10 1 2 267 156 70 7 1002120A 21 533 19 3 8 492 19 1 2 495 10 1 2 267 170 77 1 1002122A 21 533 19 3 8 492 19 1 2 495 10 1 2 267 171 77 6 1202422A 24 1 2 622 22 ...

Page 4: ...re on tags and on labels attached to or shipped with furnace and other safety precautions that may apply These instructions cover minimum requirements and conform to existing national standards and safety codes In some instances these instructions exceed certain local codes and ordinances especially those that may not have kept up with changing residential construction practices We require these i...

Page 5: ...sign certified as a direct vent 2 pipe or non direct vent 1 pipe furnace See Fig 2 The furnace is factory shipped for use with natural gas The furnace can be converted in the field for use with propane gas when a factory supplied conversion kit is used Refer to the furnace rating plate for conversion kit information This furnace is not approved for installation in mobile homes recreational vehicle...

Page 6: ...ational Fuel Gas Code NFGC NFPA 54 ANSI Z223 1 and the Installation Standards Warm Air Heating and Air Conditioning Systems ANSI NFPA 90B S CANADA Current edition of National Standard of Canada Natural Gas and Propane Installation Code NSCNGPIC CAN CSA B149 1 General Installation S US NFGC and the NFPA 90B For copies contact the National Fire Protection Association Inc Batterymarch Park Quincy MA ...

Page 7: ...allations may require OUTDOOR AIR for combustion due to chemical exposures S Commercial buildings S Buildings with indoor pools S Laundry rooms S Hobby or craft rooms S Chemical storage areas If air is exposed to the following substances it should not be used for combustion air and outdoor air may be required for combustion S Permanent wave solutions S Chlorinated waxes and cleaners S Chlorine bas...

Page 8: ...current edition of CAN CSA B149 1 Venting Systems and Air Supply for Appliances The requirements for combustion and ventilation air depend upon whether or not the furnace is located in a space having a volume of at least 50 cubic feet per 1 000 Btuh input rating for all gas appliances installed in the space S Spaces having less than 50 cubic feet per 1 000 Btuh 4 8 cubic meters per kW require the ...

Page 9: ...quate to provide air for combustion permanent ventilation 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 continu ous sealed vapor barrier Opening...

Page 10: ...00 100 000 divided by 3 000 33 3 Sq In for each Single Duct or Opening 80 000 30 000 110 000 divided by 2 000 55 0 Sq In for each two Horizontal Ducts Table 4 Minimum Space Volumes for 100 Combustion Ventilation and Dilution Air from Outdoors OTHER THAN FAN ASSISTED TOTAL 1 000 S BTUH GAS INPUT RATE FAN ASSISTED TOTAL 1 000 S BTUH GAS INPUT RATE ACH 30 40 50 40 60 80 100 120 140 Space Volume Ft3 M...

Page 11: ...cations using single pipe or ventilated combustion air venting NOTICE The condensate trap extends below the side of the casing in the horizontal position A minimum of 2 in 51 mm of clearance is required between the casing side and the furnace platform for the trap to extend out of the casing in the horizontal position Allow at least 1 4 in per foot 20 mm per meter of slope down NOTICE A11573 Fig 1...

Page 12: ...ÄÄÄÄÄ ÄÄÄÄÄÄÄÄÄÄ ÄÄÄÄÄÄÄÄÄÄ ÄÄÄÄÄÄÄÄÄÄ ÄÄÄÄÄÄÄÄÄÄ ÄÄÄÄÄÄÄÄÄÄ ÄÄÄÄÄÄÄÄÄÄ Evaporator Coil Blower 3 4 PVC 3 4 3 4 3 4 3 4 Positive pressure Pressure lower than areas with ï Negative pressure 3 4 PVC DIRECTION OF AIRFLOW 3 4 Open standpipe LQ KLJK PLQLPXP Air gap required when another drain is connected to furnace drain TEE 1 2 CPVC to 3 4 PVC adapter from loose parts bag Condensing Furnace ï ï ï ï ï ...

Page 13: ...ain line must terminate at an inside drain to prevent freezing of the condensate and possible property damage Special precautions MUST be made if installing furnace in an area which may drop below 32_ F 0_ C This can cause improper operation or damage to the equipment If the furnace environment has the potential of freezing the drain trap and drain line must be protected In areas where the tempera...

Page 14: ... be constructed from field supplied 1 2 in CPVC or 3 4 in PVC pipe in compliance with local building codes A factory supplied 1 2 in CPVC to 3 4 in PVC adapter is supplied in the loose parts bag for use as required 7 Install the adapter or connect the 1 2 in CPVC pipe by sliding a spring clamp over the open end of the grommet on the outside the furnace casing 8 Open the spring clamp and insert the...

Page 15: ...amp over the open end of the grommet on the outside the furnace casing 16 Open the spring clamp and insert the long end of the adapter or the 1 2 in CPVC pipe into the outlet stub on the drain tube 17 Connect additional condensate piping to a code approved drain or to a condensate pump approved for use with acidic furnace condensate and compatible with mineral and vegetable oils such as canola oil...

Page 16: ... stream The cover attachment shall prevent leaks Connect supply air duct to flanges on furnace supply air outlet Bend flange upward to 90_ with wide duct pliers See Fig 20 The supply air duct must be connected to ONLY the furnace supply outlet air duct flanges or air conditioning coil casing when used DO NOT cut main furnace casing side to attach supply air duct humidifier or other accessories All...

Page 17: ... 20 The supply air duct must be connected to ONLY the furnace supply outlet or air conditioning coil casing when used When installed on combustible material supply air duct must be connected to ONLY the factory approved accessory subbase or a factory approved air conditioning coil casing DO NOT cut main furnace casing to attach supply side air duct humidifier or other accessories All supply side a...

Page 18: ...uired 23 584 21 1 8 537 23 5 8 600 22 1 4 565 Downflow Applications on Noncombustible Flooring subbase not required 22 7 8 581 19 483 23 1 2 597 19 5 8 498 Downflow applications on Combustible flooring subbase required 22 1 8 562 19 483 23 3 4 603 20 5 8 600 Downflow Applications on Combustible Flooring with coil assembly or coil box subbase not required 22 1 2 572 19 483 23 1 2 597 20 508 Not all...

Page 19: ...r furnace return air opening do not match the required filter or IAQ device dimensions See the instructions supplied with factory accessory duct adapters Leveling Legs If Desired In upflow position with side return inlet s leveling legs may be used See Fig 26 Install field supplied 5 16 x 1 1 2 in 8 x 38 mm max corrosion resistant machine bolts washers and nuts NOTE Bottom closure must be used whe...

Page 20: ...0 661 0 07 17 0 12 31 0 13 33 0 20 51 0 31 79 1600 755 0 08 19 0 15 38 0 16 40 0 24 61 1800 850 0 08 21 0 18 47 0 18 47 0 29 73 2000 944 0 09 23 0 22 56 0 21 54 2200 1038 0 09 24 0 26 66 0 25 62 25 x 25 Filter 635 x 635 mm Factory Accessory Washable Factory Accessory Media Representative After Market Filter Media Fiberglass Pleated CFM L s 1 in 2 5 cm 4 in 10 cm 1 in 2 5 cm 2 in 5 cm 1 in 2 5 cm 2...

Page 21: ...ing furnace is installed over a finished ceiling 2 IN 51 mm COMBUSTION AIR PIPE SEE VENTING SECTION Install 12 x 22 204 x 559 mm sheet metal in front of and above the burner compartment area The sheet metal MUST extend above the furnace casing by 1 in 25 mm with the door removed A 1 in 25 mm clearance minimum between top of furnace and combustible material is required The entire length of furnace ...

Page 22: ...e 4 ON ON ON 385 335 See Note 4 Heating SW1 High Heat Airflow3 800 770 730 700 665 635 605 570 540 510 Low Heat Airflow3 560 520 470 425 390 See Note 4 Unit Size 0401712A Clg CF Switch settings External Static Pressure ESP Clg Switches SW2 8 SW2 7 SW2 6 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 0 Clg Default OFF OFF OFF 1240 1210 1180 1145 1105 1060 1005 950 895 835 Cooling SW2 8 7 6 OFF OFF ON 585 54...

Page 23: ...See Note 4 Heating SW1 High Heat Airflow3 1115 1090 1060 1035 1010 980 955 930 905 875 Low Heat Airflow3 780 740 695 655 615 575 530 490 450 405 Unit Size 0601714A Clg CF Switch settings External Static Pressure ESP Clg Switches SW2 8 SW2 7 SW2 6 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 0 Clg Default OFF OFF OFF 1330 1295 1260 1220 1190 1150 1110 1075 1045 1005 Cooling SW2 8 7 6 OFF OFF ON 725 600 43...

Page 24: ... ON ON 690 630 570 510 445 385 See Note 4 Heating SW1 High Heat Airflow3 1470 1435 1400 1365 1330 1295 1260 1225 1190 1155 Low Heat Airflow3 1150 1110 1070 1030 990 950 910 870 830 790 Unit Size 0802120A Clg CF Switch settings External Static Pressure ESP Clg Switches SW2 8 SW2 7 SW2 6 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 0 Clg Default OFF OFF OFF 1905 1870 1825 1785 1750 1700 1665 1625 1560 1460...

Page 25: ...25 785 710 660 590 ON ON OFF 1155 1080 1020 940 890 825 785 710 660 590 ON ON ON 1155 1080 1020 940 890 825 785 710 660 590 Heating SW1 High Heat Airflow3 1905 1865 1825 1775 1730 1685 1640 1590 1545 1490 Low Heat Airflow3 1480 1435 1375 1330 1265 1215 1160 1115 1060 1005 Unit Size 1002122A Clg CF Switch settings External Static Pressure ESP Clg Switches SW2 8 SW2 7 SW2 6 0 1 0 2 0 3 0 4 0 5 0 6 0...

Page 26: ...ax cooling airflow is achieved when switches SW2 6 SW2 7 SW2 8 and SW1 5 are set to ON and SW2 2 is set to OFF 3 All heating CFM s are when comfort efficiency adjustment switch SW1 4 is set to OFF 4 Ductwork must be sized for high heating CFM within the operational range of ESP Operation within the blank areas of the chart is not recommended be cause high heat operation will be above 1 0 ESP 5 All...

Page 27: ...er misalignment CAUTION 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 in 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 Massachusett...

Page 28: ...t edition of NSCNGPIC in Canada After all connections have been made purge lines and check for leakage at furnace prior to operating furnace NOTE The furnace gas control valve inlet pressure tap connection is suitable to use as test gauge connection providing test pressure DOES NOT exceed maximum 0 5 psig 14 In W C stated on gas control valve See Fig 64 If pressure exceeds 0 5 psig 14 In W C gas s...

Page 29: ...load amps Time delay type is recommended Length shown is as measured one way along wire path between furnace and service panel for maximum 2 percent voltage drop 1 Low Amp Kit NAHA00101PC allows select furnaces to be installed with a 15 Amp Breaker and 14 AWG wire within the listed wire length Affected data shown as Default Value Value with Lower Amp Kit ELECTRICAL SHOCK AND FIRE HAZARD Failure to...

Page 30: ...RICAL SHOCK HAZARD Failure to follow this warning could result in personal injury death or property damage High voltage field connections must be located in J Box with furnace or in field supplied external disconnect mounted to furnace If field supplied manual disconnect switch is to be mounted on furnace casing side select a location where a drill or fastener cannot damage electrical or gas compo...

Page 31: ...ound screw 8 Connect any code required external disconnect s to field power wiring 9 Connect field power and neutral leads to furnace power leads inside the external electrical box as shown in Fig 34 Power Cord Installation in Furnace J Box NOTE Power cords must be able to handle the electrical requirements listed in Table 11 Refer to power cord manufacturer s listings 1 Install J Box mounting bra...

Page 32: ... the furnace staging turn SW1 2 ON at the furnace control board For two stage thermostat control of a 2 stage outdoor unit remove the ACRDJ jumper from the furnace control board Refer to typical thermostat wiring diagrams and the Sequence of Operation section for additional details Consult the thermostat installation instructions for specific information about configuring the thermostat See Fig 38...

Page 33: ...ting User Interface will not oper ate this furnace when connected to the Communication Connector The Communication Connector on the furnace control board is only for communication between furnaces twinned together using a factory accessory twinning kit Only select sizes can be twinned refer to Twinning Kit in structions for list of approved furnaces See Fig 38 Alternate Power Supplies This furnace...

Page 34: ...ensor must be attached in all dual fuel applications 3 Refer to ICP thermostat Installation Instructions for additional information and setup procedure 4 When using a Humidity Sensing Thermostat set DEHUMIDIFY OPTIONS to H DE ENRGZD FOR DEHUM 5 Optional connection If wire is connected SW1 2 on VS furnace control should be set in ON position to allow ICP Thermostat to control the furnace staging 6 ...

Page 35: ...ple et le ciment solvant GVS 65 doivent être utilisé avec les Royal Pipe Système IPEX 636 apprêt PVC CPVC Purple pour évacuation des gaz de combustion et système IPEX 636 1 t ciment PVC pour évacuation des gaz de combustion coté classe IIA 65 deg C doivent être utilisés avec le système d évacuation IPEX 636 Ne pas combiner l apprêt et le ciment d un manufacturier avec un système d évacuation d un ...

Page 36: ...ng or death The following steps shall be followed for each appliance connected to the venting system being placed into operation while all other appliances connected to the venting system are not in operation 1 Seal any unused openings in venting system 2 Inspect the venting system for proper size and horizontal pitch as required in the National Fuel Gas Code ANSI Z223 1 NFPA 54 or the CSA B149 Na...

Page 37: ...onal codes shown in the figures Roof termination is the recommended termination location Roof terminations provide better performance against sustained prevailing winds The roof location is preferred since the vent and combustion air system is less susceptible to damage or contamination The termination is usually located away from adjacent structures or other obstacles such as inside corners windo...

Page 38: ... Table 12 Vent Termination Kit for Direct Vent 2 pipe Systems Vent and Combustion Air Pipe Diameters Approved Two Pipe Termination Fittings Allowable Concentric Vent Kit 1 1 2 in 38 mm 2 in 51 mm 2 1 2 in 64 mm 3 in 76 mm 4 in 102 mm 1 1 2 in 38 mm No Yes No No No 2 in 51 mm 2 in 51 mm No Yes No No No 2 in 51 mm 2 1 2 in 64 mm No No No Yes No 2 in 51 mm 3 in 76 mm 3 in 76 mm No No No Yes No 3 in 7...

Page 39: ...05 mm Permitted only if veranda porch deck or balcony is fully open on a minimum of two sides beneath the floor See Note 4 Manufacturer s Recommendation See Notes 3 8 M Clearance to each side of the centerline extended above or below vent terminal of the furnace to a dryer or water heater vent or other appliance s direct vent intake or exhaust 12 in 305 mm 12 in 305 mm N Furnace combustion air int...

Page 40: ... under a veranda porch deck or balcony 12 in 305 mm Permitted only if veranda porch deck or balcony is fully open on a minimum of two sides beneath the floor See Note 4 Manufacturer s Recommendation See Notes 3 8 M Clearance to each side of the centerline extended above or below vent terminal of the furnace to a dryer or water heater vent or other appliance s direct vent intake or exhaust 12 in 30...

Page 41: ...n 305 mm Vertical clearance to a soffitt located above the vent termination within a horizontal distance of 2 ft 61 cm from the centerline of the vent termination 6 ft 2 M Clearance to a ventilation exhaust including HRV ERV on either Wall A or Wall B 12 in 305 mm Clearance above paved sidewalk or paved driveway located on public property 7 ft 2 1 M Clearance under a veranda porch deck or balcony ...

Page 42: ...ewan The Provinces of Alberta and Saskatchewan require a minimum unobstructed distance of 4 ft 1 2 M from the foundation to the property line of the adjacent lot for vent termination of any appliance with an input over 35 000 btuh If there is less than 4 ft 1 2 M of unobstructed distance to the property line of the adjacent lot no type of vent termination is permitted for appliances with inputs gr...

Page 43: ...diameter to the pipe must be made as close to the furnace as reasonably possible See Fig 48 FURNACE PIPE DIAMETER TRANSITION IN VERTICAL SECTION NOT IN HORIZONTAL SECTION A93034 Fig 48 Combustion Air and Vent Pipe Diameter Transition Location and Elbow Configuration The Maximum Vent Length for the vent and combustion air pipe when used is determined from the Maximum Equivalent Vent Length in Table...

Page 44: ...1185623 1 25 in 32 mm Dia shipped in the loose parts bag or available through FAST Parts required under 10 ft 3 M TEVL in all orientations Required for installations from 0 2000 0 to 610 M above sea level Failure to use an outlet restrictor may result in flame disturbances or flame sense lock out 2 60K Inducer Outlet Restrictor Inducer Outlet Restrictor disk P N 1185623 1 25 in 32 mm Dia available...

Page 45: ...the combustion air inlet pipe if a large amount of moisture must be removed The drain line may be connected to the same drain as the furnace condensate and the evaporator coil condensate line ONLY if the inlet air trap drain and the evaporator coil drain empty into an open segment of pipe above the drain See Fig 12 When using the External Vent Trap Kit refer to those instructions for proper drain ...

Page 46: ...ons to the TEVL for vent terminations and flexible pipe sections See the polypropylene venting system manufacturer s instructions for details on equivalent lengths of vent terminations and flexible vent pipes and for calculating total vent lengths To calculate the Total Equivalent Vent Length TEVL of the venting system 1 Measure the individual distance from the furnace to the ter mination for each...

Page 47: ...6 Install the insulation per the insulation manufacturer s in stallation instructions NOTE Pipe length ft M specified for maximum pipe lengths located in unconditioned spaces cannot exceed total allowable pipe length as calculated from Table 13 Configure the Furnace CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death To route the vent pipe and c...

Page 48: ... 3 8 in Insulation 1 2 in Insulation Pipe Dia mm 38 51 64 38 51 64 38 51 64 38 51 64 76 38 51 64 76 38 51 64 76 7 6 1 6 1 6 1 6 1 15 2 13 7 6 1 18 3 15 2 6 1 9 1 9 1 7 6 6 1 22 9 19 8 18 3 6 1 25 9 22 9 19 8 18 3 0 1 5 1 5 6 1 7 6 6 1 6 1 9 1 7 6 4 6 4 6 3 0 3 0 6 1 12 2 9 1 7 6 6 1 13 7 12 2 9 1 29 1 5 6 1 4 6 3 0 6 1 6 1 4 6 3 0 1 5 6 1 7 6 6 1 4 6 6 1 9 1 7 6 6 1 40 4 6 3 0 1 5 4 6 4 6 3 0 1 5 ...

Page 49: ...ther unused knockout may be used for combustion air connection UPFLOW VERTICAL VENT A11310A Fig 52 Upflow Configuration Appearance May Vary See Notes for Venting Options 1 2 3 4 5 6 7 5 Rotate vent elbow to required position DOWNFLOW LEFT CONFIGURATION A11311A 1 2 3 4 5 6 7 5 Rotate vent elbow to required position Any other unused knockout may be used for combustion air connection DOWNFLOW RIGHT C...

Page 50: ... Number HORIZONTAL RIGHT LEFT VENT CONFIGURATION A11336 ALTERNATE COMBUSTION AIR CONNECTIONS A11335 Fig 55 Horizontal Right Appearance May Vary See Notes for Venting Options NOTES FOR VENTING OPTIONS 1 Attach vent pipe adapter with gasket to furnace casing 2 Align notches in rubber coupling over standoffs on adapter Slide clamps over the coupling 3 Slide vent pipe through adapter and coupling into...

Page 51: ...w attached to the inducer 1 Apply the gaskets to the vent pipe and combustion air pipe adapters If supplied remove and discard round center slug from interior of gasket See Fig 58 CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death DO NOT use cement to join polypropylene venting systems Follow the polypropylene venting system manufacturer s inst...

Page 52: ...mer Apply cement in a light uniform coat on inside of socket to prevent buildup of excess cement Apply second coat DO NOT CEMENT POLYPROPYLENE FITTINGS 14 While cement is still wet twist pipe into socket with 1 4 in turn Be sure pipe is fully inserted into fitting socket 15 Wipe excess cement from joint A continuous bead of ce ment will be visible around perimeter of a properly made joint 16 Handl...

Page 53: ...ameter 127 mm flashing for a 3 in 80 mm ND concentric vent kit For two pipe or single pipe vent systems a flashing for each pipe of the required diameter will be necessary It is recommended that the flashing be installed by a roofer or competent professional prior to installing the concentric vent The terminations can be installed on a flat or pitched roof Concentric Vent Single or multiple concen...

Page 54: ... two holes one for each pipe of appropriate size for pipe size being used 2 Loosely install elbow in bracket if used and place assem bly on combustion air pipe 3 Install bracket as shown in Fig 40 and 49 NOTE For applications using vent pipe option indicated by dashed lines in Fig 40 and 41 rotate vent elbow 90_ from position 4 Disassemble loose pipe fittings Clean and cement using same procedures...

Page 55: ...r for ABS is recommended to remove any surface residue ABS cleaners are not subject to ASTM standards Polypropylene Approved Manufacturer Solvents Primers Cements Poly Pro M G Dura Vent Not Permitted NOTE Polypropylene vent systems are UL 1738 and ULC S636 listed and assembled using mechanical fastening systems supplied by the vent manufacturer Venting System Length Calculations The Total Equivale...

Page 56: ...y be present temporarily after start up from the manufacturing process Some occupants are more sensitive to this minor smoke and odor It is recommended that doors and windows be open during the first heat cycle NOTICE General 1 Furnace must have a 115 v power supply properly connect ed and grounded NOTE Proper polarity must be maintained for 115 v wiring Control status indicator light flashes rapi...

Page 57: ...g mode 5 Replace blower door Continuous Fan CF Setup Switches SW2 3 4 5 The CF setup switches are used to select desired airflow when thermostat is in continuous fan mode or to select low cooling airflow for two speed cooling units Refer to the Adjustments section for setup switch configurations To set desired cooling airflow 1 Remove blower door 2 Locate CF setup switches on furnace control 3 Det...

Page 58: ... to upper collector box drain connection See Fig 62 3 Pour one quart liter of water into funnel tube Water should run through collector box overfill condensate trap and flow into open field drain 4 Remove funnel replace collector box drain plug 5 Connect field supplied 5 8 in 16 mm ID tube to middle collector box drain port 6 Pour one quart liter of water into funnel tube Water should run through ...

Page 59: ...input rate first determine if the furnace has the correct orifice installed At higher altitudes or different gas heat contents it may be necessary to change the factory orifice to a different orifice Tables have been provided in the furnace installation instructions to match the required orifice to the manifold pressure to the heat content and specific gravity of the gas To do this 1 Obtain averag...

Page 60: ...ired manifold pressure is outside this range change main burner orifices to obtain manifold pressure in this range NOTICE i Install low heat regulator adjustment cap j Move setup switch SW1 2 to OFF position after complet ing low heat adjustment k Leave manometer or similar device connected and proceed to Step 2 2 Adjust manifold pressure to obtain high fire input rate See Fig 64 a Jumper R to W W...

Page 61: ...bypass humidifier is used See Fig 38 for switch location e Verify correct model plug is installed To lock the furnace in low heat 1 Turn SW1 2 ON at the furnace control 2 Connect a jumper across R and W W1 at the thermostat terminals at the furnace control 3 Allow the burners to ignite and the blower to turn on 4 Allow the supply temperature to stabilize and verify the proper rise range If the tem...

Page 62: ...r thermostat instructions and install on subbase or wall f Turn SW1 2 switch OFF g Install blower door 2 Electronic thermostat Set cycle rate for 3 cycles per hr Check Safety Controls The flame sensor gas valve and pressure switch were all checked in the Start up procedure section as part of normal operation 1 Check Main Limit Switch This control shuts off combustion system and energizes air circu...

Page 63: ... 3 5 1 5 43 3 6 1 5 43 3 7 1 6 875 44 3 6 1 5 44 3 7 1 6 43 3 4 1 4 43 3 5 1 5 4000 900 44 3 4 1 4 44 3 5 1 5 44 3 7 1 5 44 3 8 1 6 1219 925 44 3 2 1 4 44 3 4 1 4 44 3 5 1 5 44 3 6 1 5 950 45 3 7 1 6 44 3 2 1 3 44 3 3 1 4 44 3 4 1 4 750 42 3 3 1 4 42 3 4 1 4 42 3 5 1 5 42 3 6 1 5 4001 775 43 3 7 1 6 43 3 8 1 6 42 3 3 1 4 42 3 4 1 4 1220 800 43 3 5 1 5 43 3 6 1 5 43 3 7 1 6 43 3 8 1 6 825 44 3 8 1 ...

Page 64: ... 5 1 5 44 3 7 1 5 44 3 8 1 6 43 3 4 1 4 8000 775 44 3 3 1 4 44 3 4 1 4 44 3 5 1 5 44 3 7 1 5 2438 800 45 3 8 1 6 44 3 2 1 4 44 3 3 1 4 44 3 4 1 4 825 46 3 7 1 6 46 3 8 1 6 45 3 8 1 6 44 3 2 1 4 625 42 3 4 1 4 42 3 5 1 5 42 3 6 1 5 42 3 7 1 6 8001 650 43 3 8 1 6 42 3 2 1 4 42 3 3 1 4 42 3 4 1 4 2439 675 43 3 5 1 5 43 3 6 1 5 43 3 7 1 6 42 3 2 1 3 700 44 3 7 1 6 43 3 4 1 4 43 3 5 1 5 43 3 6 1 5 725 ...

Page 65: ...440 01 4801 00 65 Specifications subject to change without notice A190071 Fig 67 Service Label Information ...

Page 66: ...tion Remove and recycle all components or materials i e oil refrigerant control board etc before unit final disposal CAUTION ELECTRICAL OPERATION HAZARD Failure to follow this caution may result in improper furnace operation or failure of furnace Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation CAUTION ELECTRICAL SHOCK FIRE OR ...

Page 67: ...wer door for more informa tion Component Self Test Component Test can ONLY be initiated by performing the following 1 Remove blower door 2 Remove the wire from the R terminal of the control board 3 Turn Setup Switch SW 1 6 ON 4 Manually close blower door switch Blower door switch opens 115 v power to control No component operation can occur unless switch is closed Caution must be taken when manual...

Page 68: ...pending on the application or orientation The filter is external to the furnace casing There are no provisions for an internal filter with this furnace See Filter Arrangement under the Installation section of this manual CARBON MONOXIDE POISONING AND FIRE HAZARD Failure to follow this warning could result in personal injury death and or property damage Never operate furnace without a filter or fil...

Page 69: ...lips on blower wheel vanes Do not bend wheel or blades as balance will be affected 7 If greasy residue is present on blower wheel remove wheel from the blower housing and wash it with an appropriate degreaser To remove wheel NOTE The DIBC composite wheel used in some models should be cleaned with mild soapy water only Allow wheel to dry prior to reassembly a Mark blower wheel location on shaft bef...

Page 70: ...s from HSI 8 Disconnect Flame Sensor wire from Flame Sensor 9 Support the manifold and remove the 4 screws that secure the manifold assembly to the burner assembly and set aside Note the location of the green yellow wire and ground ter minal 10 Inspect the orifices in the manifold assembly for blockages or obstructions Remove orifice and clean or replace orifice 11 Remove the four screws that atta...

Page 71: ... on the ignitor itself See Fig 70 8 Turn on gas and electrical supplies to furnace 9 Verify ignitor operation by initiating control board self test feature or by cycling thermostat 10 Replace control door Flushing Collector Box and Drainage System ELECTRICAL SHOCK AND FIRE HAZARD Failure to follow this warning could result in personal injury death and or property damage Turn off the gas and electr...

Page 72: ...s get a heavy accumulation of soot and carbon both the primary and secondary heat exchangers should be replaced rather than trying to clean them thoroughly due to their intricate design A build up of soot and carbon indicates that a problem exists which needs to be corrected such as improper adjustment of manifold pressure insufficient or poor quality combustion air improper vent termination incor...

Page 73: ...lure of plastic components may occur CAUTION 1 Obtain propylene glycol RV swimming pool antifreeze or equivalent 2 Turn off gas and electrical supplies to your furnace 3 Remove furnace control door 4 Remove the top unused rubber plug from the port on the collector box opposite the condensate trap See Fig 62 5 Connect a field supplied 3 8 in 9 5 mm ID tube to the open port on the collector box 6 In...

Page 74: ...here a previous status code other than the heartbeat Go to section below for the status code that was flashed Does the control respond to W W1 W2 Y1 Y Y2 and G 24V thermostat signals Run system through a low heat high heat or cooling cycle to check operation Status codes are erased after 72 hours or can be manually erased by putting setup switch SW1 1 in the ON position and jumpering R W W1 and Y ...

Page 75: ...location Clean flame sensor with fine steel wool and recheck current Nominal current is 4 0 to 6 0 microamps Is current near typical value Replace electrode Will main burners ignite and stay on Replace furnace control Fixed NO YES YES YES NO NO Replace furnace control Check for continuity in the harness and igniter Replace defective component Reconnect the R thermostat lead and set thermostat to c...

Page 76: ...gized The furnace control CPU begins a 15 second prepurge period after the low heat pressure switch LPS closes If the high heat pressure switch HPS fails to close and the low heat pressure switch LPS closes the furnace will operate at low heat gas flow rate until the high heat pressure switch closes for a maxi mum of 2 minutes after ignition b Igniter Warm Up At the end of the prepurge period the ...

Page 77: ...n Fig 60 The electronic air cleaner terminal EAC 1 is energized with 115 vac whenever the blower motor BLWM is operating When the thermostat is satisfied the R to G and Y1 or R to G and Y1 and Y2 circuits are opened The outdoor unit stops and the furnace blower BLWM and electronic air cleaner terminal EAC 1 will remain energized for an additional 90 seconds Jumper Y1 to DHUM to reduce the cooling ...

Page 78: ...rnace control begins a normal inducer post purge period while changing the blow er airflow If Y Y2 input is still energized the furnace con trol CPU will transition the blower motor BLWM airflow to cooling airflow If Y Y2 input signal disappears and the Y1 input is still energized the furnace control CPU will transi tion the blower motor BLWM to low cooling airflow If both the Y1 and Y Y2 signals ...

Page 79: ...r 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 model number series number and serial number located on the unit rating pla...

Page 80: ...80 440 01 4801 00 Specifications subject to change without notice Copyright 2019 International Comfort Products Lewisburg TN 37091 USA ...