*DD2B060A9V3VA *DD2B080A9V3VA *DD2C100A9V5VA *DD2D120A9V5VA

UD2-9V-SF-C Gas Furnace Speed 2 Stage Heat Models: * - First letter may be A or T *UD2B060A9V3VB *UD2B080A9V3VB *UD2C080A9V4VB *UD2C080B9V4VB *UD2B00A9V3VB *UD2C00A9V5VB *UD2C00B9V5VB *UD2DA9V5VB *UD2DB9V5VB *UD2D40A9V5VB *DD2B060A9V3VA *DD2B080A9V3VA *DD2C00A9V5VA *DD2DA9V5VA X340989P7 IMPORTANT This document contains a wiring diagram and service information. This is customer property and is to remain with this unit. Please return to service information pack upon completion of work. WARNING DISCONNECT POWER BEFORE SERVICING MODEL TYPE RATINGS 2 st Stage Input BTUH st Stage Capacity BTUH (ICS) 3 2nd Stage Input BTUH 2nd Stage Capacity BTUH (ICS) 3 Temp. rise (Min.-Max.) F. BER DRIVE Diameter - Width (In.) No. Used Speeds (No.) vs. in. w.g. Motor HP R.P.M. Volts / Ph / Hz COMBUSTION FAN Type Drive - No. Speeds Motor HP - RPM Volts / Ph / Hz FLA FILTER Furnished? Type Recommended Hi Vel. (No.-Size-Thk.) VENT Size (In.) HEAT EXCHANGER Type -Fired -Unfired Gauge (Fired) ORIFICES Main Nat. Gas. Qty. Drill Size L.P. Gas Qty. Drill Size GAS VALVE PILOT SAFETY DEVICE Type BURNERS Type Number POWER CONN. V / Ph / Hz 4 Ampacity (In Amps) Max. Overcurrent Protection (Amps) PIPE CONN. SIZE (In.) DIMENSIONS Crated (In.) WEIGHT Shipping (Lbs.) / Net (Lbs.) Product Specifications *UD2B060A9V3VB Upflow / Horizontal,000 3,0 60,000,000 30-60 Direct 0 x 7 See Airflow Table /2 Centrifugal Direct - 2 /00-25/727 0.70/0.40 Yes High Velocity - 7x25 - in. 4 Round Alum. Steel - Type 3 3 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 3 0.5 5 /2 H x W x D 4-3/4 x 9-/2 x 30-/2 36 / 26 *UD2B080A9V3VB Upflow / Horizontal,000 4,600 80,000 64,000 30-60 Direct 0 x 7 See Airflow Table /2 Centrifugal Direct - 2 /00-25/727 0.70/0.40 Yes High Velocity - 7x25 - in. 4 Round Alum. Steel - Type 4 4 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 4 0.5 5 /2 H x W x D 4-3/4 x 9-/2 x 30-/2 42 / 32 *UD2C080A9V4VB Upflow / Horizontal,000 4,600 80,000 64,000 30-60 Direct 0 x 0 See Airflow Table 3/4 Centrifugal Direct - 2 /00-25/727 0.70/0.40 Yes High Velocity - x25 - in. 4 Round Alum. Steel - Type 4 4 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 4 2.9 /2 H x W x D 4-3/4 x 23 x 30-/2 66 / 55 Central Furnace heating designs are certified to ANSI Z2. / CSA 2.3. 2 For U.S. applications, above input ratings (BTUH) are up to 2,000 feet, derate 4% per,000 feet for elevations above 2,000 feet above sea level. For Canadian applications, above input ratings (BTUH) are up to 4,0 feet, derate 4% per,000 feet for elevations above 4,0 feet above sea level. 3 Based on U.S. government standard tests. 4 The above wiring specifications are in accordance with National Electrical Code; however, installations must comply with local codes. NOTICE: Since the manufacturer has a policy of continuous product and product data improvement, it reserves the right to change design and specifications without notice. 0 Trane

MODEL TYPE RATINGS 2 st Stage Input BTUH st Stage Capacity BTUH (ICS) 3 2nd Stage Input BTUH 2nd Stage Capacity BTUH (ICS) 3 Temp. rise (Min.-Max.) F. BER DRIVE Diameter - Width (In.) No. Used Speeds (No.) vs. in. w.g. Motor HP R. P.M. Volts / Ph / Hz COMBUSTION FAN Type Drive - No. Speeds Motor HP - RPM Volts / Ph / Hz FLA FILTER Furnished? Type Recommended Hi Vel. (No.-Size-Thk.) VENT Size (In.) HEAT EXCHANGER Type -Fired -Unfired Gauge (Fired) ORIFICES Main Nat. Gas. Qty. Drill Size L.P. Gas Qty. Drill Size GAS VALVE PILOT SAFETY DEVICE Type BURNERS Type Number POWER CONN. V / Ph / Hz 4 Ampacity (In Amps) Max. Overcurrent Protection (Amps) PIPE CONN. SIZE (In.) DIMENSIONS Crated (In.) Product Specifications *UD2C080B9V4VB Upflow / Horizontal,000 4,600 80,000 64,000 30-60 Direct 0 x 0 See Airflow Table 3/4 Centrifugal Direct - 2 /00-25/727 0.70/0.40 Yes High Velocity - x25 - in. 4 Round Alum. Steel - Type 4 4 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 4 2.9 /2 H x W x D 4-3/4 x 23 x 30-/2 *UD2B00A9V3VB Upflow / Horizontal 65,000,000 00,000 80,000 40-70 Direct 0 x 7 See Airflow Table /2 Centrifugal Direct - 2 /75-2708/868 0.87/0.49 Yes High Velocity - 7x25 - in. 4 Round Alum. Steel - Type 5 5 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 5 0.8 5 /2 H x W x D 4-3/4 x 9-/2 x 30-/2 *UD2C00A9V5VB Upflow / Horizontal 65,000,000 00,000 79,000 35-65 Direct 0 x 0 See Airflow Table Centrifugal Direct - 2 /75-2708/868 0.87/0.49 Yes High Velocity - x25 - in. 4 Round Alum. Steel - Type 5 5 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 5 4.9 /2 H x W x D 4-3/4 x 23 x 30-/2 WEIGHT Shipping (Lbs.) / Net (Lbs.) 66 / 55 42 / 32 66 / 55 Central Furnace heating designs are certified to ANSI Z2. / CSA 2.3. 2 For U.S. applications, above input ratings (BTUH) are up to 2,000 feet, derate 4% per,000 feet for elevations above 2,000 feet above sea level. For Canadian applications, above input ratings (BTUH) are up to 4,0 feet, derate 4% per,000 feet for elevations above 4,0 feet above sea level. 3 Based on U.S. government standard tests. 4 The above wiring specifications are in accordance with National Electrical Code; however, installations must comply with local codes. 2 X340989P7

Product Specifications MODEL TYPE RATINGS 2 st Stage Input BTUH st Stage Capacity BTUH (ICS) 3 2nd Stage Input BTUH 2nd Stage Capacity BTUH (ICS) 3 Temp. rise (Min.-Max.) F. BER DRIVE Diameter - Width (In.) No. Used Speeds (No.) vs. in. w.g. Motor HP R. P.M. Volts / Ph / Hz COMBUSTION FAN Type Drive - No. Speeds Motor HP - RPM Volts / Ph / Hz FLA FILTER Furnished? Type Recommended Hi Vel. (No.-Size-Thk.) VENT Size (In.) HEAT EXCHANGER Type -Fired -Unfired Gauge (Fired) ORIFICES Main Nat. Gas. Qty. Drill Size L.P. Gas Qty. Drill Size GAS VALVE PILOT SAFETY DEVICE Type BURNERS Type Number POWER CONN. V / Ph / Hz 4 Ampacity (In Amps) Max. Overcurrent Protection (Amps) PIPE CONN. SIZE (In.) DIMENSIONS Crated (In.) WEIGHT Shipping (Lbs.) / Net (Lbs.) *UD2C00B9V5VB Upflow / Horizontal 65,000,000 00,000 79,000 35-65 Direct 0 x 0 See Airflow Table Centrifugal Direct - 2 /75-2708/868 0.87/0.49 Yes High Velocity - x25 - in. 4 Round Alum. Steel - Type 5 5 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 5 4.9 /2 H x W x D 4-3/4 x 23 x 30-/2 66 / 55 *UD2DA9V5VB Upflow / Horizontal 78,000 62,400,000 97,000 35-65 Direct 0 x 0 See Airflow Table Centrifugal Direct - 2 /60-3090/2225.4/0.5 Yes High Velocity - 24x25 - in. 4 Round Alum. Steel - Type 6 6 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 6 5.3 /2 H x W x D 4-3/4 x 26-/2 x 30-/2 93 / 8 *UD2DB9V5VB Upflow / Horizontal 78,000 62,400,000 97,000 35-65 Direct 0 x 0 See Airflow Table Centrifugal Direct - 2 /60-3090/2225.4/0.5 Yes High Velocity - 24x25 - in. 4 Round Alum. Steel - Type 6 6 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 6 5.3 /2 H x W x D 4-3/4 x 26-/2 x 30-/2 93 / 8 *UD2D40A9V5VB Upflow / Horizontal 9,000 72,800 40,000,000 40-70 Direct 0 x 0 See Airflow Table Centrifugal Direct - 2 /60-300/23.6/0. Yes High Velocity - 24x25 - in. 4 Round Alum. Steel - Type 7 7 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 7 5.3 /2 H x W x D 4-3/4 x 26-/2 x 30-/2 97 / 85 X340989P7 3

Product Specifications MODEL TYPE RATINGS 2 st Stage Input BTUH st Stage Capacity BTUH (ICS) 3 2nd Stage Input BTUH 2nd Stage Capacity BTUH (ICS) 3 Temp. rise (Min.-Max.) F. BER DRIVE Diameter - Width (In.) No. Used Speeds (No.) vs. in. w.g. Motor HP R. P.M. Volts / Ph / Hz COMBUSTION FAN Type Drive - No. Speeds Motor HP - RPM Volts / Ph / Hz FLA FILTER Furnished? Type Recommended Hi Vel. (No.-Size-Thk.) VENT Size (In.) HEAT EXCHANGER Type -Fired -Unfired Gauge (Fired) ORIFICES Main Nat. Gas. Qty. Drill Size L.P. Gas Qty. Drill Size GAS VALVE PILOT SAFETY DEVICE Type BURNERS Type Number POWER CONN. V / Ph / Hz 4 Ampacity (In Amps) Max. Overcurrent Protection (Amps) PIPE CONN. SIZE (In.) DIMENSIONS Crated (In.) WEIGHT Shipping (Lbs.) / Net (Lbs.) *DD2B060A9V3VA Downflow / Horizontal,000 3,0 60,000,000 35-65 Direct 0 x 7 See Airflow Table /2 Centrifugal Direct - 2 /00-25/727 0.70/0.40 Yes High Velocity 2-4x - in. 4 Round Alum. Steel - Type 3 3 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 3 0.5 5 /2 H x W x D 4-3/4 x 9-/2 x 30-/2 40 / 29 *DD2B080A9V3VA Downflow / Horizontal,000 4,600 80,000 63,000 35-65 Direct 0 x 7 See Airflow Table /2 Centrifugal Direct - 2 /00-25/727 0.70/0.40 Yes High Velocity 2-4x - in. 4 Round Alum. Steel - Type 4 4 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 4 0.5 5 /2 H x W x D 4-3/4 x 9-/2 x 30-/2 46 / 35 *DD2C00A9V5VA Downflow / Horizontal 65,000,000 00,000 8,000 35-65 Direct x 0 See Airflow Table Centrifugal Direct - 2 /75-2708/868 0.87/0.49 Yes High Velocity 2-6x - in. 4 Round Alum. Steel - Type 5 5 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 5 4.9 /2 H x W x D 4-3/4 x 23 x 30-/2 66 / 55 DD2DA9V5VA Downflow / Horizontal 78,000 62,400,000 95,000 35-65 Direct x 0 See Airflow Table Centrifugal Direct - 2 /60-3090/2225.4/0.5 Yes High Velocity 2-6x - in. 4 Round Alum. Steel - Type 6 6 56 Redundant - Two Stage Hot Surface Ignition Multi-port In-shot 6 5.3 /2 H x W x D 4-3/4 x 26-/2 x 30-/2 97 / 85 Central Furnace heating designs are certified to ANSI Z2. / CSA 2.3. 2 For U.S. applications, above input ratings (BTUH) are up to 2,000 feet, derate 4% per,000 feet for elevations above 2,000 feet above sea level. For Canadian applications, above input ratings (BTUH) are up to 4,0 feet, derate 4% per,000 feet for elevations above 4,0 feet above sea level. 3 Based on U.S. government standard tests. 4 The above wiring specifications are in accordance with National Electrical Code; however, installations must comply with local codes. 4 X340989P7

CARBON MONOXIDE POISONING HAZARD Failure to follow the steps outlined below for each appliance connected to the venting system being placed into operation could result in carbon monoxide poisoning 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:. Seal any unused openings in the venting system. 2. Inspect the venting system for proper size and horizontal pitch, as required in the National Fuel Gas Code, ANSI Z223./NFPA or the CAN/CGA B49 Installation Codes and these instructions. 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 deficiencies which could cause an unsafe condition. 4. Close fireplace dampers. 5. Turn on clothes dryers and any appliance not connected to the venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they are operating at maximum speed. Do not operate a summer exhaust fan. 6. Follow the lighting instructions. Place the appliance being inspected into operation. Adjust the thermostat so appliance is operating continuously. 7. If improper venting is observed during any of the above tests, the venting system must be corrected in accordance with the National Fuel Gas Code, ANSI Z22./NFPA and/or CAN/CGA B49 Installation Codes. 8. After it has been determined that each appliance connected to the venting system properly vents where tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas-fired burning appliance to their previous conditions of use.! WARNING The cabinet must have an uninterrupted or unbroken ground according to National Electrical Code, ANSI/NFPA 70 - latest edition and Canadian Electrical Code, CSA C22. or local codes to minimize personal injury if an electrical fault should occur. A failure to follow this warning could result in an electrical shock, fire, injury, or death. Safety Section Service Facts! WARNING! WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow the installation instructions for the venting system being placed into operation could result in carbon monoxide poisoning or death.! WARNING FIRE OR EXPLOSION HAZARD Failure to follow the safety warnings exactly could result in serious injury, death or property damage. Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections. A fire or explosion may result causing property damage, personal injury, or loss of life.! WARNING FIRE OR EXPLOSION HAZARD Failure to follow the safety warnings exactly could result in serious injury, death or property damage. Improper servicing could result in dangerous operation, serious injury, death, or property damage.! WARNING BODILY INJURY CAN RESULT FROM VOLTAGE ELECTRICAL COMPONENTS, FAST MOVING FANS, AND COMBUSTIBLE GAS. FOR PROTECTION FROM THESE INHERENT HAZARDS DURING INSTALLATION AND SERVICING, THE ELECTRICAL SUPPLY MUST BE DISCONNECTED AND THE MAIN GAS VALVE MUST BE TURNED OFF. IF OPERATING CHECKS MUST BE PERFORMED WITH THE UNIT OPERATING, IT IS THE TECHNICIANS RESPONSIBILITY TO RECOGNIZE THESE HAZARDS AND PROCEED SAFELY. CAUTION! THE INTEGRATED FURNACE CONTROL IS POLARITY SENSITIVE. THE HOT LEG OF THE 5 VAC POWER MUST BE CONNECTED TO THE BLACK FIELD LEAD. X340989P7 5

Sequence Of Operation Thermostat call for heat (2-stage thermostat) Call for st stage only: R and W thermostat contacts close signaling the control module to run its self-check routine. After the control module has verified that the st stage pressure switch contacts are open and the limit switch(es) contacts are closed, the draft blower will be energized. As the induced draft blower comes up to speed, the pressure switch contacts will close and the ignitor warm up period will begin. The igniter will heat for approx. 7 seconds, then the gas valve is energized in st stage to permit gas flow to the burners. The flame sensor confirms that ignition has been achieved within the 4 second ignition trial period. As the flame sensor confirms that ignition has been achieved, the delay to fan ON period begins timing and after approx. seconds the indoor blower motor will be energized at low speed and will continue to run during the heating cycle. Call for 2nd stage after st stage: R and W2 thermostat contacts close signaling a call for 2nd stage heat. After a 30 second delay, the induced draft blower will be energized on high speed and the 2nd stage pressure switch contacts will close allowing the gas valve to be energized in 2nd stage and the indoor blower motor in high speed. 2nd stage satisfied, st stage still called: R and W2 thermostat contacts open signaling that 2nd stage heating requirements are satisfied. The induced draft blower is reduced to low speed allowing the 2nd stage pressure switch contacts to open and the gas valve is reduced to st stage. After approx. 30 seconds the indoor blower motor is reduced to low speed. st stage satisfied: R and W thermostat contacts open signaling that st stage heating requirements are satisfied. The gas valve will close and the induced draft blower will be de-energized. The indoor blower motor will continue to run for the heating fan off period (Field selectable at 90,, or 80 seconds), then will be de-energized by the control module. Thermostat call for heat (-stage Thermostat) R and W thermostats close signaling a call for heat. st stage sequence of operation remains the same as above. 2nd stage delay will be reflective dip switch S7- and S7-2. Reference the back of service facts for delay options. Thermostat satisfied (-stage Thermostat): Contacts open signaling the control module to close the gas valve and de-energize the induced draft blower. The indoor blower motor will continue to operate at high heat speed for approx. 30 seconds after the flames are extinguished and then is switched to low heat speed for the remaining FAN- OFF period.! WARNING Should overheating occur, or the gas supply fail to shut off, shut off the gas valve to the unit before shutting off the electrical supply. Failure to follow this warning could result in property damage, personal injury, or death. Indoor Blower Timing Heating: The ECM Fan Control controls the variable speed indoor blower. The blower on time is fixed at seconds after ignition. The FAN-OFF period is field selectable by dip switches S7-3 and S7-4 on the Integrated Furnace Control at 90,,, or 80 seconds. The factory setting is 90 seconds (See unit wiring diagram). Cooling: The fan delay-off period is set by dip switches on the ECM Fan Control board connected to the Integrated Furnace Control. The options for cooling delay off is field selectable by dip switches S4- and S4-2. The following table and graph explain the delay-off settings: COOLING OFF - DELAY OPTIONS SWITCH S SELECTION NOMINAL AIRF S4- - OFF S4-2 - OFF NONE SAME S4- - ON S4-2 - OFF.5 MINUTES 00% * S4- - OFF S4-2 - ON 3 MINUTES % S4- - ON S4-2 - ON ** - 00% * - This setting is equivalent to BAY24X0 relay benefit ** - This selection provides ENHANCED MODE, which is a ramping up and ramping down of the blower speed to provide improved comfort, quietness, and potential energy savings. See Wiring Diagram notes on the unit or in the Service Facts for complete wiring setup for ENHANCED MODE. The graph which follows, shows the ramping process. OFF % 80% minute Dehumidify Fast Coil Cooling 7.5 minutes 00% if necessary Efficiency %! WARNING BODILY INJURY CAN RESULT FROM VOLTAGE ELECTRICAL COMPONENTS, FAST MOVING FANS, AND COMBUSTIBLE GAS. FOR PROTECTION FROM THESE INHERENT HAZARDS DURING INSTALLATION AND SERVICING, THE ELECTRICAL SUPPLY MUST BE DISCONNECTED AND THE MAIN GAS VALVE MUST BE TURNED OFF. IF OPERATING CHECKS MUST BE PERFORMED WITH THE UNIT OPERATING, IT IS THE TECHNICIANS RESPONSIBILITY TO RECOGNIZE THESE HAZARDS AND PROCEED SAFELY.! CAUTION THE INTEGRATED FURNACE CONTROL IS POLARITY SENSITIVE. THE HOT LEG OF THE 5 VAC POWER MUST BE CONNECTED TO THE BLACK FIELD LEAD. 3 minutes OFF 6 X340989P7

! WARNING Disconnect power to the unit before removing the blower door. Failure to follow this warning could result in personal injury from moving parts.. GENERAL INSPECTION Examine the furnace installation annually for the following items: a. All flue product carrying areas external to the furnace (i.e. chimney, vent connector) are clear and free of obstruction. A vent screen in the end of the vent (flue) pipe must be inspected for blockage annually. b. The vent connector is in place, slopes upward and is physically sound without holes or excessive corrosion. c. The return air duct connection(s) is physically sound, is sealed to the furnace and terminates outside the space containing the furnace. d. The physical support of the furnace should be sound without sagging, cracks, gaps, etc., around the base so as to provide a seal between the support and the base. e. There are no obvious signs of deterioration of the furnace. 2. FILTERS Filters should be cleaned or replaced (with high velocity filters only), monthly and more frequently during high use times of the year such as midsummer or midwinter. 3. BERS The blower size and speed determine the air volume delivered by the furnace. The blower motor bearings are factory lubricated and under normal operating conditions do not require servicing. If motor lubrication is required it should only be done by a qualified servicer. Annual cleaning of the blower wheel and housing is recommended for maximum air output, and this must be performed only by a qualified servicer or service agency. 4. IGNITER This unit has a special hot surface direct ignition device that automatically lights the burners. Please note that it is very fragile and should be handled with care.! CAUTION Do not touch igniter. It is extremely hot. 5. BURNER Gas burners do not normally require scheduled servicing, however, accumulation of foreign material may cause a yellowing flame or delayed ignition. Either condition indicates that a service call is required. For best operation, burners must be cleaned annually using brushes and vacuum cleaner. Turn off gas and electric power supply. To clean burners, remove burner box cover (6 to 8 screws) and top burner bracket. Lift burners from orifices. NOTE: Be careful not to break igniter when removing burners. Clean burners with brush and/or vacuum cleaner. Reassemble parts by reversal of the above procedure. The burner box must be resealed when replacing box cover. Periodic Servicing Requirements Service Facts NOTE: On LP (propane) units, some light yellow tipping of the outer mantle is normal. Inner mantle should be bright blue. Natural gas units should not have any yellow tipped flames. This condition indicates that a service call is required. For best operation, burners must be cleaned annually using brushes and vacuum cleaner. NOTE: On LP (propane) units, due to variations in BTU content and altitude, servicing may be required at shorter intervals.! WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow the service and/or periodic maintenance instructions for the furnace and venting system, could result in carbon monoxide poisoning or death. 6. HEAT EXCHANGER/FLUE PIPE These items must be inspected for signs of corrosion, and/or deterioration at the beginning of each heating season by a qualified service technician and cleaned annually for best operation. To clean flue gas passages, follow recommendations below: a. Turn off gas and electric power supply. b. Inspect flue pipe exterior for cracks, leaks, holes or leaky joints. Some discoloration of PVC pipe is normal. c. Remove burner compartment door from furnace. d. Inspect around insulation covering flue collector box. Inspect induced draft blower connections from recuperative cell and to the flue pipe connection. e. Remove burners. (See 4.) f. Use a mirror and flashlight to inspect interior of heat exchanger, be careful not to damage the igniter, flame sensor or other components. g. If any corrosion is present, contact a service agency. Heat exchanger should be cleaned by a qualified service technician. h. After inspection is complete replace burner box cover, burners, and furnace door. i. Restore gas supply. Check for leaks using a soap solution. Restore electrical supply. Check unit for normal operation. 7. COOLING COIL CONDENSATE DRAIN If a cooling coil is installed with the furnace, condensate drains should be checked and cleaned periodically to assure that condensate can drain freely from coil to drain. If condensate cannot drain freely water damage could occur. (See Condensate Drain in Installer s Guide)! CAUTION Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. WARNING! NEVER USE AN OPEN FLAME TO TEST FOR GAS LEAKS. AN EXPLOSION COULD OCCUR, CAUSING INJURY OR DEATH. X340989P7 7

Electrical Data Service Facts Wiring Diagram (continued on next page) From Dwg. D3249P02 8 X340989P7

Schematic Diagram Service Facts From Dwg. D3249P02 X340989P7 9

Wiring Diagram (continued on next page) From Dwg. D32P02 0 X340989P7

Schematic Diagram Service Facts From Dwg. D32P02 X340989P7

Performance Data Service Facts *UD2B060A9V3VB FURNACE AIRF () AND POWER () VS. WITH FILTER AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON 9 49 65 604 95 69 25 604 60 607 0 ST 663 75 694 42 684 42 68 42 85 686 42 2 OFF OFF 775 05 78 776 80 805 36 230 8 36 270 ON ON 83 55 0 88 88 85 8 53 240 842 53 280 2ND 907 49 40 99 0 942 240 9 46 300 959 46 330 OFF OFF 038 90 066 42 260 086 4 325 089 4 365 079 4 *UD2B060A9V3VB FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (3 / TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 ON ON OFF ON 499 5 80 5 0 5 0 75.5 (400 / TON) ON ON OFF OFF 605 60 60 80 60 597 55 593 80 (0 / TON) ON ON ON OFF 649 75 68 0 665 665 80 672 2 (3 / TON) OFF ON OFF ON 680 80 722 25 680 696 90 696 225 2.0 (400 / TON) OFF ON OFF OFF 798 05 804 809 70 823 235 88 280 (0 / TON) OFF ON ON OFF 884 896 80 924 240 93 280 93 330 (3 / TON) ON OFF OFF ON 8 25 863 75 882 2 894 275 895 3 2.5 (400 / TON) ON OFF OFF OFF 984 70 07 225 038 295 07 330 07 5 (0 / TON) ON OFF ON OFF 25 2 38 35 0 6 5 6 5 (3 / TON) OFF OFF OFF ON 035 5 056 265 076 330 076 0 076 0 3.0 ** ** (400 / TON) OFF OFF OFF OFF 8 300 2 360 268 0 278 5 0 490 (0 / TON) OFF OFF ON OFF 380 0 40 0 402 5 3 5 235 5 NOTES:. *FIRST LETTER MAY BE "A" OR "T" 2. **FACTORY. 3. CONTINUOUS FAN : OR COOLING AIRF IS APPROXIMATELY % OF SELECTED COOLING VALUE. 4. 3 /TON IS RECOMMENDED FOR VARIABLE SPEED APPLICATION FOR COMFORT & HUMID CLIMATE : IS 400 /TON: 0 /TON IS FOR DRY CLIMATE. 2 X340989P7

*UD2B080A9V3VB FURNACE AIRF () AND POWER () VS. WITH FILTER AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON 800 00 790 49 35 765 55 7 0 730 53 230 ST 90 30 890 70 875 20 860 240 8 280 OFF OFF 060 88 0 38 2 00 265 00 30 000 3 ON ON 0 20 090 55 260 090 55 30 080 55 3 065 56 400 2ND MEDIUM ** ON OFF 2 300 240 355 240 40 230 460 25 49 0 OFF OFF 42 40 400 42 0 400 42 530 5 0 3 590 *UD2B080A9V3VB FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (3 /TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 OFF ON OFF ON 880 875 55 860 90 8 225 840 2 2.5 (400 /TON) OFF ON OFF OFF 0 70 000 5 990 240 980 280 960 3 (0 /TON) OFF ON ON OFF 0 20 0 260 0 3 00 3 00 385 (3 /TON) ON OFF OFF ON 040 90 00 2 000 260 000 30 990 340 3.0 (400 /TON) ON OFF OFF OFF 0 2 0 3 90 0 90 75 0 (0 /TON) ON OFF ON OFF 340 355 340 425 330 5 3 530 300 570 (3 /TON) OFF OFF OFF ON 25 265 20 330 20 5 0 0 85 465 3.5 ** ** (400 /TON) OFF OFF OFF OFF 0 7 40 5 385 575 330 0 (0 /TON) OFF OFF ON OFF 0 5 40 5 385 575 330 0 NOTES:. * First Letter may be "A" or "T" 2. ** Factory setting 3. Continuous Fan Setting: Heating or Cooling airflow is approximately % of selected Cooling value. 4. 3 cfm/ton is recommended for Speed application for COMFORT & HUMID CLIMATE setting; is 400 cfm/ton; 0 cfm/ton is for DRY CLIMATE setting X340989P7 3

*UD2C080A9V4VB FURNACE AIRF () AND POWER () VS. WITH FILTER ST 2ND AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON OFF OFF ON ON OFF OFF 782 49 75 870 90 962 40 0 09 2 49 90 762 5 0 865 25 974 40 55 092 90 2 388 325 75 5 86 75 963 40 0 087 55 2 2 30 2 5 7 5 85 8 25 938 4 2 092 305 2 0 385 5 7 225 83 46 94 42 290 077 55 355 235 0 7 55 *UD2C080A9V4VB FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (3 /TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 ON ON OFF ON 863 90 865 30 8 75 8 2 83 2.5 (400 /TON) ON ON OFF OFF 995 5 005 70 989 20 973 260 956 305 (0 /TON) ON ON ON OFF 0 2 0 07 305 0 360 (3 /TON) OFF ON OFF ON 03 25 03 75 026 25 03 270 003 3 3.0 (400 /TON) OFF ON OFF OFF 63 70 78 230 88 285 83 3 78 405 (0 /TON) OFF ON ON OFF 240 3 305 3 365 340 4 336 5 3.5 (3 /TON) ON OFF OFF ON 82 0 6 240 2 295 2 3 2 4 (400 /TON) ON OFF OFF OFF 380 40 325 402 0 402 460 9 55 (0 /TON) ON OFF ON OFF 553 3 566 425 557 0 5 560 559 6 (3 /TON) OFF OFF OFF ON 386 40 330 408 5 402 460 0 5 4.0 ** ** (400 /TON) OFF OFF OFF OFF 590 360 593 0 59 55 8 575 576 6 (0 /TON) OFF OFF ON OFF 79 360 808 65 80 65 808 775 726 800 NOTES:. * First Letter may be "A" or "T" 2. ** Factory setting 3. Continuous Fan Setting: Heating or Cooling airflow is approximately % of selected Cooling value. 4. 3 cfm/ton is recommended for Speed application for COMFORT & HUMID CLIMATE setting; is 400 cfm/ton; 0 cfm/ton is for DRY CLIMATE setting 4 X340989P7

*UD2C080B9V4VB FURNACE AIRF () AND POWER () VS. WITH FILTER ST 2ND AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON OFF OFF ON ON OFF OFF 974 49 33 02 93 94 40 9 89 42 346 5 4 460 86 968 49 285 2 27 80 20 57 9 388 49 7 56 263 949 2 03 25 2 9 57 276 8 49 274 536 335 925 5 2 083 0 40 304 93 34 0 49 3 533 407 906 304 066 305 82 40 362 75 404 2 40 55 7 *UD2C080B9V4VB FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (3 /TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 ON ON OFF ON 842 7 89 4 789 63 756 7 740 249 2.5 (400 /TON) ON ON OFF OFF 956 90 9 40 928 96 90 2 884 298 (0 /TON) ON ON ON OFF 07 3 078 7 067 233 0 292 028 3 (3 /TON) OFF ON OFF ON 002 99 000 983 20 9 265 942 38 3.0 (400 /TON) OFF ON OFF OFF 40 28 55 9 256 32 4 9 (0 /TON) OFF ON ON OFF 278 65 3 238 36 308 305 7 287 4 3.5 (3 /TON) ON OFF OFF ON 63 34 8 99 77 265 6 328 389 (400 /TON) ON OFF OFF OFF 324 79 363 2 326 363 7 3 466 (0 /TON) ON OFF ON OFF 5 234 5 566 6 565 2 6 5 (3 /TON) OFF OFF OFF ON 324 79 363 2 326 363 7 3 466 4.0 ** ** (400 /TON) OFF OFF OFF OFF 8 2 570 329 594 407 593 3 575 562 (0 /TON) OFF OFF ON OFF 69 322 777 46 86 499 824 579 805 669 NOTES:. * First Letter may be "A" or "T" 2. ** Factory setting 3. Continuous Fan Setting: Heating or Cooling airflow is approximately % of selected Cooling value. 4. 3 cfm/ton is recommended for Speed application for COMFORT & HUMID CLIMATE setting; is 400 cfm/ton; 0 cfm/ton is for DRY CLIMATE setting X340989P7 5

*UD2B00A9V3VB FURNACE AIRF () AND POWER () VS. WITH FILTER AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON 75 64 86 796 6 32 87 59 75 832 28 838 57 263 ST 862 56 2 92 85 953 5 233 967 285 9 322 OFF OFF 959 002 20 036 46 280 036 46 325 003 355 ON ON 099 67 227 24 66 287 49 64 355 57 64 055 70 5 2ND 286 365 32 56 0 33 56 5 25 6 5 9 66 0 OFF OFF 9 53 465 49 570 3 55 5 265 59 5 63 64 5 *UD2B00A9V3VB FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (3 /TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 ON ON OFF ON 56 536 75 55 05 5 35 530 65.5 (400 /TON) ON ON OFF OFF 3 59 65 92 633 27 62 57 68 8 (0 /TON) ON ON ON OFF 68 70 697 0 70 40 709 80 72 25 (3 /TON) OFF ON OFF ON 680 75 726 735 74 90 7 230 2.0 (400 /TON) OFF ON OFF OFF 769 03 89 8 90 8 235 865 286 (0 /TON) OFF ON ON OFF 882 30 938 90 96 2 975 300 970 3 (3 /TON) ON OFF OFF ON 83 80 903 80 928 230 935 275 935 3 2.5 (400 /TON) ON OFF OFF OFF 979 67 036 240 053 295 053 3 05 368 (0 /TON) ON OFF ON OFF 2 2 30 76 383 67 2 055 6 (3 /TON) OFF OFF OFF ON 06 20 08 265 095 3 0 382 032 380 3.0** ** (400 /TON) OFF OFF OFF OFF 85 278 223 364 25 5 5 5 0 426 (0 /TON) OFF OFF ON OFF 35 425 2 3 3 535 2 5 68 0 NOTES:. * First Letter may be "A" or "T" 2. ** Factory setting 3. Continuous Fan Setting: Heating or Cooling airflow is approximately % of selected Cooling value. 4. 3 cfm/ton is recommended for Speed application for COMFORT & HUMID CLIMATE setting; is 400 cfm/ton; 0 cfm/ton is for DRY CLIMATE setting 6 X340989P7

*UD2C00A9V5VB FURNACE AIRF () AND POWER () VS. WITH FILTER AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON 900 53 00 890 30 870 55 75 8 57 2 835 270 ST 25 090 0 060 46 235 070 300 070 340 OFF OFF 300 2 300 290 3 36 365 3 36 0 340 36 490 ON ON 270 59 0 290 260 290 335 290 400 280 460 2ND 575 355 600 46 4 60 46 5 600 46 575 0 6 OFF OFF 870 40 560 890 665 860 40 70 870 40 830 730 760 *UD2C00A9V5VB FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (3 /TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 ON ON OFF ON 075 35 055 85 05 2 000 265 990 325 3.0 (400 /TON) ON ON OFF OFF 2 85 0 240 20 295 20 3 20 40 (0 /TON) ON ON ON OFF 0 2 0 3 40 40 0 400 (3 /TON) OFF ON OFF ON 24 85 20 240 25 295 20 3 20 3.5 (400 /TON) OFF ON OFF OFF 0 30 460 355 0 0 460 0 0 555 (0 /TON) OFF ON ON OFF 640 0 665 460 6 0 640 65 60 660 (3 /TON) ON OFF OFF ON 405 270 0 30 0 5 0 0 4 5 4.0 (400 /TON) ON OFF OFF OFF 670 5 675 490 670 5 655 630 630 700 (0 /TON) ON OFF ON OFF 870 0 880 635 880 730 8 800 670 640 (3 /TON) OFF OFF OFF ON 775 0 800 0 8 680 800 7 680 740 5.0 ** ** (400 /TON) OFF OFF OFF OFF 65 755 840 9 900 805 880 623 800 (0 /TON) OFF OFF ON OFF 230 000 000 9 965 890 800 825 NOTES:. * First letter may be "A" or "T" 2. ** Factory setting 3. Continuous Fan Setting: Heating or Cooling airflow is approximately % of selected Cooling value. 4. 3 cfm/ton is recommended for Speed application for COMFORT & HUMID CLIMATE setting; is 400 cfm/ton; 0 cfm/ton is for DRY CLIMATE setting X340989P7 7

*UD2C00B9V5VB FURNACE AIRF () AND POWER () VS. WITH FILTER AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON 953 93 9 46 936 5 93 908 2 887 292 ST 42 42 35 4 42 0 35 42 2 322 098 7 OFF OFF 2 38 69 260 38 240 256 38 302 236 38 8 227 7 ON ON 32 88 26 34 326 294 53 406 287 53 468 2ND 577 30 592 387 592 468 597 563 2 6 OFF OFF 7 2 76 6 762 575 753 675 762 774 *UD2C00B9V5VB FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (3 /TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 ON ON OFF ON 056 4 0 73 0 225 09 284 002 336 3.0 (400 /TON) ON ON OFF OFF 99 5 99 29 94 277 72 349 6 405 (0 /TON) ON ON ON OFF 342 98 3 273 3 340 326 422 3 6 (3 /TON) OFF ON OFF ON 223 224 227 29 287 98 36 87 48 3.5 (400 /TON) OFF ON OFF OFF 389 27 7 294 5 363 7 9 3 55 (0 /TON) OFF ON ON OFF 556 29 570 6 570 5 556 9 559 629 (3 /TON) ON OFF OFF ON 389 27 7 294 5 363 7 9 3 55 4.0 (400 /TON) ON OFF OFF OFF 0 303 595 389 595 469 2 565 5 6 (0 /TON) ON OFF ON OFF 770 4 793 7 795 598 787 698 797 80 (3 /TON) OFF OFF OFF ON 723 382 7 5 7 564 735 663 7 760 5.0 ** ** (400 /TON) OFF OFF OFF OFF 96 6 99 6 996 75 99 8 0 98 (0 /TON) OFF OFF ON OFF 299 7 227 875 227 983 297 067 987 9 NOTES:. * First letter may be "A" or "T" 2. ** Factory setting 3. Continuous Fan Setting: Heating or Cooling airflow is approximately % of selected Cooling value. 4. 3 cfm/ton is recommended for Speed application for COMFORT & HUMID CLIMATE setting; is 400 cfm/ton; 0 cfm/ton is for DRY CLIMATE setting 8 X340989P7

*UD2DA9V5VB FURNACE AIRF () AND POWER () VS. WITH FILTER AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON 007 57 4 062 77 084 53 285 063 303 063 3 ST 67 2 230 2 277 22 3 22 OFF OFF 288 8 273 30 330 349 40 3 460 ON ON 387 64 2 42 63 3 5 6 400 8 60 460 495 59 0 2ND 9 56 3 6 0 666 53 535 678 53 600 575 OFF OFF 77 5 788 560 804 49 6 75 5 675 5 57 590 *UD2DA9V5VB FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (See Notes) (3 / TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 OFF ON OFF ON 95 2 225 235 275 25 325 25 40 3.5 (400 / TON) OFF ON OFF OFF 353 20 403 290 0 7 425 8 5 (0 / TON) OFF ON ON OFF 5 35 572 40 65 0 634 570 567 575 (3 / TON) ON OFF OFF ON 356 0 280 9 0 3 4 4 4.0 (400 / TON) ON OFF OFF OFF 565 3 4 40 633 5 6 560 5 575 (0 / TON) ON OFF ON OFF 766 0 799 5 80 6 784 685 590 600 (3 / TON) OFF OFF OFF ON 708 4 7 530 759 5 775 675 575 5 5.0 ** ** (400 / TON) OFF OFF OFF OFF 994 665 8 775 97 785 84 725 68 625 (0 / TON) OFF OFF ON OFF 22 975 2 925 9 860 86 765 693 680 NOTES: "CONTINUOUS FAN " IS THERMOSTAT FAN SWITCH "ON" AND DIP SWITCHS 5 AND 6 "ON".. *FIRST LETTER MAY BE "A" OR "T" 2. **FACTORY. 3. CONTINUOUS FAN : OR COOLING AIRF IS APPROXIMATELY % OF SELECTED COOLING VALUE. 4. 3 /TON IS RECOMMENDED FOR VARIABLE SPEED APPLICATION FOR COMFORT & HUMID CLIMATE : IS 400 /TON: 0 /TON IS FOR DRY CLIMATE. X340989P7 9

*UD2DB9V5VB FURNACE AIRF () AND POWER () VS. WITH FILTER AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON 0 99 0 46 46 035 46 8 005 2 980 30 ST 24 29 26 88 27 262 92 40 2 69 4 30 OFF OFF 288 293 22 298 293 275 309 2 38 3 ON ON 429 9 0 267 3 363 5 340 46 406 2ND 672 4 30 695 40 402 722 40 8 7 40 409 697 40 0 OFF OFF 782 385 809 38 0 890 36 623 835 565 87 6 *UD2DB9V5VB FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (See Notes) (3 / TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 OFF ON OFF ON 8 28 9 86 20 260 85 306 62 0 3.5 (400 / TON) OFF ON OFF OFF 3 62 3 232 3 38 3 365 3 (0 / TON) OFF ON ON OFF 7 20 49 290 7 490 6 2 8 (3 / TON) ON OFF OFF ON 3 62 3 232 3 38 3 365 3 4.0 (400 / TON) ON OFF OFF OFF 496 28 5 300 8 403 5 7 494 5 (0 / TON) ON OFF ON OFF 6 296 67 387 698 5 686 5 67 626 (3 / TON) OFF OFF OFF ON 62 274 63 363 655 2 642 627 598 5.0 ** ** (400 / TON) OFF OFF OFF OFF 8 403 902 533 907 624 906 74 87 755 (0 / TON) OFF OFF ON OFF 87 5 226 7 20 797 98 888 0 953 NOTES: "CONTINUOUS FAN " IS THERMOSTAT FAN SWITCH "ON" AND DIP SWITCHS 5 AND 6 "ON".. *FIRST LETTER MAY BE "A" OR "T" 2. **FACTORY. 3. CONTINUOUS FAN : OR COOLING AIRF IS APPROXIMATELY % OF SELECTED COOLING VALUE. 4. 3 /TON IS RECOMMENDED FOR VARIABLE SPEED APPLICATION FOR COMFORT & HUMID CLIMATE : IS 400 /TON: 0 /TON IS FOR DRY CLIMATE. X340989P7

*UD2D40A9V5VB FURNACE AIRF () AND POWER () VS. WITH FILTER AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON 090 62 30 00 6 75 070 63 25 080 62 060 63 290 ST 230 55 80 265 53 235 280 53 35 300 380 300 5 OFF OFF 380 49 235 405 290 425 5 0 0 5 ON ON 5 67 3 5 67 385 560 67 5 560 67 0 575 66 605 2ND 760 59 5 790 5 80 6 800 695 725 60 725 OFF OFF 00 65 0 75 00 790 9 8 800 775 *UD2D40A9V5VB FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (3 /TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 OFF ON OFF ON 75 65 65 0 80 265 70 3 400 3.5 (400 /TON) OFF ON OFF OFF 3 225 0 285 400 360 405 0 380 490 (0 /TON) OFF ON ON OFF 5 295 565 0 5 0 575 55 530 5 (3 /TON) ON OFF OFF ON 3 2 330 275 335 355 300 5 240 490 4.0 (400 /TON) ON OFF OFF OFF 5 30 0 400 590 5 555 0 460 60 (0 /TON) ON OFF ON OFF 735 0 735 70 600 670 675 590 70 (3 /TON) OFF OFF OFF ON 700 725 0 730 560 725 640 690 700 5.0 ** ** (400 /TON) OFF OFF OFF OFF 980 66 980 70 9 770 885 780 735 735 (0 /TON) OFF OFF ON OFF 290 835 2 870 75 890 905 800 735 735 NOTES:. * First Letter may be "A" or "T" 2. ** Factory setting 3. Continuous Fan Setting: Heating or Cooling airflow is approximately % of selected Cooling value. 4. 3 cfm/ton is recommended for Speed application for COMFORT & HUMID CLIMATE setting; is 400 cfm/ton; 0 cfm/ton is for DRY CLIMATE setting X340989P7 2

*DD2B060A9V3VA FURNACE AIRF () AND POWER () VS. WITH FILTER AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON 5 53 593 49 80 57 5 07 567 5 5 53 70 ST 6 65 664 92 6 22 6 55 6 97 OFF OFF 735 75 76 38 76 38 55 764 38 90 762 38 230 ON ON 7 60 75 777 57 775 57 55 783 57 95 772 230 2ND 874 5 05 887 88 85 894 230 894 270 OFF OFF 996 03 92 04 2 0 42 307 069 42 3 *DD2B060A9V3VA FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (3 / TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 ON ON OFF ON 533 563 75 6 00 534 30 55 60.5 (400 / TON) ON ON OFF OFF 609 55 627 90 624 5 606 607 80 (0 / TON) ON ON ON OFF 664 65 683 95 690 35 687 65 680 0 (3 / TON) OFF ON OFF ON 693 65 74 05 708 35 706 70 72 20 2.0 (400 / TON) OFF ON OFF OFF 780 85 82 30 83 65 80 5 86 2 (0 / TON) OFF ON ON OFF 886 0 896 90 0 925 2 930 285 (3 / TON) ON OFF OFF ON 865 05 882 869 85 884 275 885 265 2.5 (400 / TON) ON OFF OFF OFF 977 35 983 80 04 235 035 290 09 330 (0 / TON) ON OFF ON OFF 097 70 25 235 55 305 69 3 69 405 (3 / TON) OFF OFF OFF ON 006 034 0 056 072 35 067 3 3.0 ** ** (400 / TON) OFF OFF OFF OFF 69 25 2 265 226 355 22 0 27 0 (0 / TON) OFF OFF ON OFF 33 290 3 0 360 425 369 0 357 5 NOTES:. *FIRST LETTER MAY BE "A" OR "T" 2. **FACTORY. 3. CONTINUOUS FAN : OR COOLING AIRF IS APPROXIMATELY % OF SELECTED COOLING VALUE. 4. 3 /TON IS RECOMMENDED FOR VARIABLE SPEED APPLICATION FOR COMFORT & HUMID CLIMATE : IS 400 /TON: 0 /TON IS FOR DRY CLIMATE. 22 X340989P7

*DD2B080A9V3VA FURNACE AIRF () AND POWER () VS. WITH FILTER AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON 775 85 7 5 0 700 55 40 685 56 70 680 57 85 ST 865 0 840 46 40 8 75 795 20 770 235 OFF OFF 00 38 60 980 90 970 40 230 940 4 260 95 42 285 ON ON 080 55 80 060 56 2 035 57 00 59 285 995 60 325 2ND 90 2 90 290 70 5 330 55 5 0 40 40 OFF OFF 3 330 335 380 3 425 30 5 275 46 5 *DD2B080A9V3VA FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (3 /TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 OFF ON OFF ON 840 05 830 35 830 60 85 2 7 225 2.5 (400 /TON) OFF ON OFF OFF 970 40 9 70 940 20 925 2 900 270 (0 /TON) OFF ON ON OFF 085 85 060 2 0 260 05 300 000 325 (3 /TON) ON OFF OFF ON 05 55 995 90 990 230 970 260 9 285 3.0 (400 /TON) ON OFF OFF OFF 25 40 2 305 00 335 085 0 (0 /TON) ON OFF ON OFF 290 300 290 340 270 0 260 425 235 5 (3 /TON) OFF OFF OFF ON 60 2 265 40 3 5 3 00 385 3.5 ** ** (400 /TON) OFF OFF OFF OFF 355 330 340 380 330 425 3 0 280 (0 /TON) OFF OFF ON OFF 360 330 360 380 35 425 3 0 280 NOTES:. * First letter may be "A" or "T" 2. ** Factory setting 3. Continuous Fan Setting: Heating or Cooling airflow is approximately % of selected Cooling value. 4. 3 cfm/ton is recommended for Speed application for COMFORT & HUMID CLIMATE setting; is 400 cfm/ton; 0 cfm/ton is for DRY CLIMATE setting X340989P7 23

*DD2C00A9V5VA FURNACE AIRF () AND POWER () VS. WITH FILTER AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON 890 87 870 55 855 56 60 8 57 0 825 2 ST 00 35 090 75 080 225 070 260 070 3 OFF OFF 270 38 95 290 260 295 35 300 365 300 425 ON ON 230 60 80 2 6 2 2 59 290 59 3 275 40 2ND 5 49 295 5 385 560 460 555 5 530 565 OFF OFF 8 4 5 825 4 570 825 4 625 800 4 685 740 695 *DD2C00A9V5VA FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (3 /TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 ON ON OFF ON 025 25 0 65 035 95 030 2 005 285 3.0 (400 /TON) ON ON OFF OFF 85 65 80 20 80 2 90 35 90 365 (0 /TON) ON ON ON OFF 300 0 3 280 355 325 5 405 0 0 (3 /TON) OFF ON OFF ON 95 65 85 25 0 270 0 3 90 0 3.5 (400 /TON) OFF ON OFF OFF 360 230 0 35 425 380 4 0 4 495 (0 /TON) OFF ON ON OFF 560 3 595 425 595 460 595 0 570 5 (3 /TON) ON OFF OFF ON 3 235 385 300 40 5 4 425 40 495 4.0 (400 /TON) ON OFF OFF OFF 575 340 65 4 625 495 60 5 5 595 (0 /TON) ON OFF ON OFF 800 0 795 555 790 6 760 670 690 675 (3 /TON) OFF OFF OFF ON 7 0 760 55 755 595 735 640 670 660 5.0 ** ** (400 /TON) OFF OFF OFF OFF 0 630 00 700 940 7 865 740 760 725 (0 /TON) OFF OFF ON OFF 25 830 230 835 5 800 890 760 740 7 NOTES:. * First letter may be "A" or "T" 2. ** Factory setting 3. Continuous Fan Setting: Heating or Cooling airflow is approximately % of selected Cooling value. 4. 3 cfm/ton is recommended for Speed application for COMFORT & HUMID CLIMATE setting; is 400 cfm/ton; 0 cfm/ton is for DRY CLIMATE setting 24 X340989P7

DD2DA9V5VA FURNACE AIRF () AND POWER () VS. WITH FILTER AIRF DIP SWITCH S4-3 S4-4 0. 0.3 0.5 0.7 0.9 ON ON 970 60 85 990 40 980 59 80 955 6 20 930 62 ST 40 5 70 5 25 270 35 OFF OFF 240 240 20 240 2 240 300 240 360 ON ON 360 65 90 380 64 2 400 63 35 425 62 400 0 62 0 2ND 570 57 275 6 55 0 640 0 6 0 635 560 OFF OFF 7 360 735 5 425 760 5 55 760 5 5 760 5 6 DD2DA9V5VA FURNACE COOLING AIRF () AND POWER () VS. WITH FILTER OUTDOOR UNIT SIZE (TONS) AIRF (3 /TON) DIP SWITCH S3- S3-2 S3-3 S3-4 0. 0.3 0.5 0.7 0.9 OFF ON OFF ON 0 0 85 85 235 20 290 20 3 3.5 (400 /TON) OFF ON OFF OFF 355 90 400 265 4 335 4 385 4 0 (0 /TON) OFF ON ON OFF 535 0 3 600 6 490 600 530 (3 /TON) ON OFF OFF ON 3 90 0 2 400 3 385 4 4 4.0 (400 /TON) ON OFF OFF OFF 570 275 600 3 630 425 640 0 630 560 (0 /TON) ON OFF ON OFF 800 400 800 0 85 0 8 60 80 670 (3 /TON) OFF OFF OFF ON 725 3 7 0 770 0 790 0 775 6 5.0 ** ** (400 /TON) OFF OFF OFF OFF 970 55 5 65 35 700 0 775 960 800 (0 /TON) OFF OFF ON OFF 2260 730 22 830 225 885 860 975 80 NOTES:. * First Letter may be "A" or "T" 2. ** Factory setting 3. Continuous Fan Setting: Heating or Cooling airflow is approximately % of selected Cooling value. 4. 3 cfm/ton is recommended for Speed application for COMFORT & HUMID CLIMATE setting; is 400 cfm/ton; 0 cfm/ton is for DRY CLIMATE setting X340989P7 25

The following warning complies with State of California law, Proposition 65.! WARNING This product contains fiberglass wool insulation! Fiberglass dust and ceramic fibers are believed by the State of California to cause cancer through inhalation. Glasswool fibers may also cause respiratory, skin, or eye irritation. PRECAUTIONARY MEASURES Avoid breathing fiberglass dust. Use a NIOSH approved dust/mist respirator. Avoid contact with the skin or eyes. Wear long-sleeved, loose-fitting clothing, gloves, and eye protection. Wash clothes separately from other clothing: rinse washer thoroughly. Operations such as sawing, blowing, tear-out, and spraying may generate fiber concentrations requiring additional respiratory protection. Use the appropriate NIOSH approved respirator in these situations. FIRST AID MEASURES Eye Contact Flush eyes with water to remove dust. If symptoms persist, seek medical attention. Skin Contact Wash affected areas gently with soap and warm water after handling. * The diagnostics will indicate the specific fault through the following code: GREEN LED AMBER LED RED LED ERROR FLASH FLASH FLASH Flame Sensed when no flame should be present 2 Pressure switch stuck closed 3 st stage pressure switch is open / not closing 4 Open thermal limit or open rollout 5 Open low voltage fuse 6 st stage pressure switch opened 5 times within one cycle-- hour lockout 7 System lockout Retry 8 System lockout Recycle 9 Reverse polarity or poor grounding 0 Gas valve energized without call for heat 2 Ignitor relay failure internal in board. Replace IFC Solid Gas valve relay failure internal in board. Replace IFC 3 Double 2nd stage pressure switch open; system reverts back to st stage heat st stage call for heat 2 2nd stage call for heat 3 W2 call present without W 4 Y call present without G Rapid Low flame sense current Standby mode or call for cooling 26 X340989P7

Troubleshooting and Additional Information Service Facts Board layout. Points for flame rectification readings VDC = ua S7 switch for W2 delay with single stage thermostat and heating blower delays S5- for HP or Non Heat pump selection S5-2 for humidistat & BK enabling Fault Retrieval Status & Fault LED LED One flash equal 00 requested Blower air flow settings and cooling time delays 5 amp fuse LED Jumper Do not cut X340989P7 27

Board layout. S7 switches & 2 for W2 delay Leave both switches off when using a 2- stage stat or enabling a W only call. See Troubleshooting for details on Auto S7 switches 3 & 4 for blower delay in heating S5 switches & 2 S3- & S3-2 control system tonnage. These switches configure air flow to match the tonnage of the condenser. Reference door panel or blower performance tables for settings S3-3 & S3-4 control per ton S3-3 S3-4 S4-3 & S4-4 control blower heating speeds. Reference blower tables for required heating air flow. 28 X340989P7

Fault Code Retrieval The IFC has the ability to store fault codes in memory. To retrieve previous faults, push and release the last error button for to 5 seconds. The LED will flash up to five stored fault codes beginning with the most recent. There is a two second delay between the faults displayed. The LED will flash two green flashes if there are no fault codes in memory. Fault Code Reset Push and hold the last error button between 5 and 0 seconds to clear all faults from memory. The LED will flash three green flashes to confirm that memory has been cleared. BK Feature Enabling the BK feature is done through the S5-2 switch on the IFC. The switch comes in the de-activated ON position from the factory. Move this switch to the OFF position to enable the BK function of the board. Do not cut any jumpers on this board. The BK feature is used for blower modulation when using a humidistat for de-humidification, a two step scroll compressor system, a 402 thermostat (with BK enabled), or residential zoning. A jumper must be placed between R & O on the low voltage terminal board to engage the BK circuit W2 staging time delay options with single stage stat The auto mode can be used when employing a single stage heating thermostat. This mode allows the furnace to move into second stage based on the past three hour duty cycle of the furnace. *A furnace running in mild conditions will have a low duty cycle and a second stage delay of 0 to 2 minutes. *A furnace running in normal conditions will have an average duty cycle and a second stage delay of 5 to 7 minutes. *A furnace running in cold conditions will have a high duty cycle and a second stage delay of only to 3 minutes. Leave S7- & S7-2 to the off position when using a 2-stage thermostat. The V5 Control board uses a 5 Silicone Nitride Igniter. This control board does not reduce the voltage to the igniter as other boards do. Do not use lower voltage igniters as replacement options. Only use the OEM igniter for replacement. X340989P7 29

NOTICE: Since the manufacturer has a policy of continuous product and product data improvement, it reserves the right to change design and specifications without notice. 30 X340989P7