ICP F9MVE0401410A, Service And Technical Support Manual

Page 1: ...pictures or product labels The signal word WARNING is used throughout this manual in the following manner Safety alert symbol When you see this symbol on the unit and in instructions or manuals be al...

Page 2: ...eath WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE...

Page 3: ...Manual Gas Shut off Upstream of Furnace Drip Leg Gas Valve turned ON Type of Gas Natural Propane Filter Type and Size Shade in Final Furnace Settings Below OAT PL9 PL4 PL7 SW 1 SW2 SW3 SW4 O N 8 7 6 5...

Page 4: ...r high stage cooling airflow when a two stage outdoor unit is used Refer to the Adjustments section for set up switch configurations To set the desired cooling airflow 1 Remove blower door 2 Locate A...

Page 5: ...xchanger failures WARNING FURNACE DAMAGE HAZARD Failure to follow this caution may result in reduced furnace life DO NOT redrill orifices Improper drilling burrs out of round holes etc can cause exces...

Page 6: ...ce No 44 Furnace is shipped with No 44 orifices In this example all main burner orifices are the correct size and do not need to be changed to obtain proper input rate Manifold pressure 3 4 in w c 847...

Page 7: ...ssure tap plug to gas valve e Remove jumpers R to W W1 and R to W2 FIRE HAZARD Failure to follow this warning could result in personal injury death and or property damage Re install manifold pressure...

Page 8: ...TERMINAL 115 VAC 1 0 AMP MAX PL1 LOW VOLTAGE MAIN HARNESS CONNECTOR TERMINALS HARNESS CONNECTOR TRANSFORMER 24 VAC CONNECTIONS 3 AMP FUSE STATUS AND COMM LED LIGHTS SW1 SETUP SWITCHES AND AND ECM BLO...

Page 9: ...0 300 21 171 343 857 62 58 116 290 22 164 327 818 64 56 112 281 23 157 313 783 66 54 109 273 24 150 300 750 68 53 106 265 25 144 288 720 70 51 103 257 26 138 277 692 72 50 100 250 27 133 267 667 74 48...

Page 10: ...43 3 8 1 6 42 3 2 1 4 850 44 3 8 1 6 43 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...

Page 11: ...re and airflow FURNACE DAMAGE HAZARD Failure to follow this caution may result in S Overheating the heat exchangers or condensing flue gases in heat exchanger areas not designed for condensate S Short...

Page 12: ...SWITCH SW1 7 and 8 POSITION 90 OFF OFF 120 ON OFF 150 OFF ON 180 ON ON Adjust Cooling Airflow High Speed and Low Speed Cooling The ECM blower can be adjusted for a range of airflows for low speed or...

Page 13: ...0 seconds to 180 seconds See table in Adjustments section or refer to unit wiring diagram SW4 3 CFM per ton Adjust OFF Allows additional CFM per ton selections when used with SW 1 5 325 CFM per ton no...

Page 14: ...this method to check limit control it can be established that limit is functioning properly and will operate if there is a restricted return air supply or motor failure If limit control does not funct...

Page 15: ...50 1110 1075 1045 1005 Cooling SW2 OFF OFF ON 725 660 600 520 435 See note 4 OFF ON OFF 780 725 660 615 540 See note 4 OFF ON ON 975 925 875 835 785 750 690 655 610 570 ON OFF OFF 1160 1120 1090 1045...

Page 16: ...1015 825 630 485 405 325 See note 4 OFF ON OFF 1080 895 815 740 690 615 555 475 See note 4 OFF ON ON 1155 1080 1020 940 890 825 785 710 660 590 ON OFF OFF 1310 1260 1195 1140 1075 1025 970 925 875 81...

Page 17: ...sposal CAUTION ELECTRICAL SHOCK FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury or death or property damage Before installing modifying or servicing system main...

Page 18: ...e label located on control door or Figure 15 and the troubleshooting guide which can be obtained from your distributor Retrieving Stored Fault Codes The stored status codes will NOT be erased from the...

Page 19: ...ion device access doors removed WARNING CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective...

Page 20: ...Figure 9 for steps 5 through 14 5 Remove screws securing blower assembly to blower shelf and slide blower assembly out of furnace Detach ground wire and disconnect blower motor harness plugs from blow...

Page 21: ...ture rise as shown in Adjustments Section Adjust temperature rise as shown in Adjustments Section Cleaning Burners and Flame Sensor The following items must be performed by a qualified service technic...

Page 22: ...Surface Igniter NOTE Use propane resistant pipe dope to prevent leaks Do not use Teflon tape 13 Install the gas pipe to the gas valve Figure 12 Igniter Position Side View L12F041 2 in 2 5 mm 3 8 in 3...

Page 23: ...xternal shut off or gas meter 3 Remove control door and set aside 4 Turn electric switch on gas valve to OFF 5 Disconnect external drain from condensate drain elbow or drain extension pipe inside the...

Page 24: ...ring diagram and reconnect wires to flame rollout switch gas valve igniter and flame sensor 10 Turn on gas and electrical supplies to furnace 11 Check furnace operation through two complete heat opera...

Page 25: ...ied 3 8 in 9 5 mm ID tube to the open port on the collector box 6 Insert a field supplied funnel into the tube 7 Pour 1 quart of anti freeze solution into the funnel tube Antifreeze should run through...

Page 26: ...SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace F G 9MVE Specifications subject to change without notice 440 04 4800 00 26 Figure 15 Service Label 338317 2 Rev H...

Page 27: ...SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace F G 9MVE Specifications subject to change without notice 27 440 04 4800 00 Figure 16 Wiring Diagram 338317 2 Rev H...

Page 28: ...t flashes When done put setup switch SW1 1 in the OFF position Was there a previous status code other than the heartbeat Go to section below for the status code that was flashed Does the control respo...

Page 29: ...gh heat then switch to low heat check manifold pressure If OK check burner carryover and flame sensor location Clean flame sensor with fine steel wool and recheck current Nominal current is 4 0 to 6 0...

Page 30: ...t high speed and the high heat pressure switch relay HPSR is de energized to close the NC contact When sufficient pressure is available the high heat pressure switch HPS closes and the high heat gas v...

Page 31: ...ll continue operating at cooling airflow for an additional 90 seconds Jumper Y Y2 to DHUM to reduce the cooling off delay to 5 seconds See Figure 4 b Two Stage Thermostat and Two Speed Cooling See Fig...

Page 32: ...ed with a heat pump the furnace control automatically changes the timing sequence to avoid long blower off times during demand defrost cycles Whenever W W1 is energized along with Y1 or Y Y2 the furna...

Page 33: ...800 00 Figure 20 Variable Speed Furnace with Single Stage Heat Pump Dual Fuel L09F026 NOTE 9 Figure 21 Variable Speed Furnace with Two Stage Heat Pump Dual Fuel L09F028 NOTE 9 Figure 22 Variable Speed...

Page 34: ...stallation 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 conne...

Page 35: ...Module when used Inducer motor capacitor when used Collector box Condensate trap Condensate trap elbow Gaskets WARNING FIRE EXPLOSION ELECTRICAL SHOCK AND CARBON MONOXIDE POISONING HAZARD Failure to f...

Page 36: ...Two stage FEATURE B Base AFUE Efficiency E Extra AFUE Efficiency C Communicating D Dual Certified 2 pipe or 1 pipe R 2 pipe only S Single stage T Two stage N Standard L Low Nox FEATURE 040 40 000 BTU...