Upflow/Horizontal Left Downflow/Horizontal Right Condensing, Direct Vent Gas-Fired Furnace FREEDOM 90 SINGLE STAGE

Upflow/Horizontal Left Downflow/Horizontal Right Condensing, Direct Vent Gas-Fired Furnace FREEDOM 90 SINGLE STAGE AUXB00A92A, AUXB060A92A, AUXB060A936A, AUXB080A92A, AUXB080A92A, AUXC080A960A, AUXC00A936A, AUXC00A98A, AUXD00A960A, AUXDA960A ADXB00A92A, ADXB060A936A, ADXB080A92A, ADXC00A98A, ADXDA960A Single-Stage Fan Assisted Combustion System PUB. NO. 2-23-06

General Features NATURAL GAS MODELS Central Heating furnace designs are certified by the American Gas Association for both natural and L.P. gas. Limit setting and rating data were established and approved under standard rating conditions using American National Standards Institute standards. SAFE OPERATION The Integrated System Control has solid state devices, which continuously monitor for presence of flame, when the system is in the heating mode of operation. Dual solenoid combination gas valve and regulator provide extra safety. QUICK HEATING Durable, cycle tested, heavy gauge aluminized steel heat exchanger quickly transfers heat to provide warm conditioned air to the structure. Low energy power vent blower, to increase efficiency and provide a positive discharge of gas fumes to the outside. BURNERS burners will give years of quiet and efficient service. All models can be converted to L.P. gas without changing burners. INTEGRATED SYSTEM CONTROL Exclusively designed operational program provides total control of furnace limit sensors, blowers, gas valve, flame control and includes self diagnostics for ease of service. Also contains connection points for E.A.C./humidifier. AIR DELIVERY The four speed, direct drive blower motor, has sufficient airflow for most heating and cooling requirements, will switch from heating to cooling speeds on demand from room thermostat. The blower door safety switch will prevent or terminate furnace operation when the blower door is removed. STYLING Heavy gauge steel and wrap-around cabinet construction is used in the cabinet with baked-on enamel finish for strength and beauty. The heat exchanger section of the cabinet is completely lined with foil faced fiberglass insulation. This results in quiet and efficient operation due to the excellent acoustical and insulating qualities of fiberglass. Built-in bottom pan and alternate bottom, left or right side return air connection provision. FEATURES AND GENERAL OPERATION The FREEDOM 90 Single Stage High Efficiency Gas Furnaces employ a Silicon Nitride system, which eliminates the waste of a constant burning pilot. The integrated system control lights the main burners upon a demand for heat from the room thermostat. Complete front service access. a. Low energy power venter b. Vent proving pressure switch. 09 American Standard Heating & Air Conditioning 2 22-23-05

Features and Benefits Contents FREEDOM 90 Standard Equipment Power supply Convertible to horizontal left Type 29-C stainless steel secondary heat exchanger Inner blower doors Direct drive, -speed motors Silicon Nitride igniter with adaptive heat up Accessory hook-up capability Hum and EAC Quiet induced draft blower Blower door safety switch Dual solenoid combination gas valve & regulator PVC venting or 2 pipe vent option Left/right gas connection Selectable cooling fan off delay eliminates need for BAY2X05 time delay relay Single wire twinning Integrated solid state control with selfdiagnostics 2 volt fuse Manual reset burner box limit Optional extended warranties General Features 2 Features and Benefits 3 FREEDOM 90 Standard Equipment 3 FREEDOM 90 Optional Equipment General Data 5 AUXB00A92A 5 AUXB060A92A 5 AUXB060A936A 5 AUXB080A92A 5 AUXB080A92A 5 AUXC080A960A 5 AUXC00A936A 5 AUXC00A98A 6 AUXD00A960A 6 AUXDA960A 6 ADXB00A92A 7 ADXB060A936A 7 ADXB080A92A 7 ADXC00A98A 8 ADXDA960A 8 Performance Data 9 Electrical Data Field Wiring 3 Twinning Field Wiring Dimensions 5 22-23-05 3

Features and Benefits FREEDOM 90 Single Stage Optional Equipment Comfort Control, XL803, Programmable 7 Day, 3-Ht, 2-Cl... TCONT803AS32DA [ ] Comfort Control, XR02, Electric, 3-Ht, 2-Cl (n-programmable)... TCONT02AN32DA [ ] For additional comfort control choices, see the product catalog or quick select handbook Propane Conversion Kit... BAYLPKT20B [ ] Propane Conversion Kit (stainless steel burners)... BAYLPSS20B [ ] Wall Mount Flange 3"... BAY96X7 [ ] Wall Mount Flange 2"... BAY96X8 [ ] Downflow Subbase... BAYBASE5 [ ] Filter Access Door Kit... BAYFLTR6 [ ] Side Filter Rack... BAYFLTR0 [ ] High Altitude Pressure Switch Kit TUX00,00C960D; TDX00C... BAYHALT230 [ ] High Altitude Pressure Switch Kit TUX060C... BAYHALT23 [ ] High Altitude Pressure Switch Kit TUX080C... BAYHALT232 [ ] High Altitude Pressure Switch Kit TUX00C98D,C; TDX080,C... BAYHALT233 [ ] High Altitude Pressure Switch Kit TDX00C... BAYHALT23 [ ] High Altitude Pressure Switch Kit TDX060C... BAYHALT2 [ ] Concentric Vent Kit... BAYVENT00A [ ] Sidewall Vent Termination Kit... BAYVENT0B [ ] Manufactured/Mobile Home Kit...BAYMFGH00A [ ] 2-23-06

General Data Product Specifications MODEL TYPE RATINGS 2 Input BTUH Capacity BTUH (ICS) 3 AFUE (ICS) Temp. rise (Min.-Max.) F. BLOWER DRIVE Diameter - Width (In.). Used Speeds (.) CFM vs. in. w.g. Motor HP R.P.M. Volts / Ph / Hz COMBUSTION FAN - Type Drive -. Speeds Motor HP - RPM Volts / Ph / Hz FLA FILTER Furnished? Type Recommended Hi Vel. (.-Size-Thk.) AUXB00A92A Upflow / Horizontal 0,000 38,000 95.0 30-60 9 x 7 /5 075 /55-3000.0-7x25 - in. VENT PIPE DIA. Min (In.) 56 2 Round HEAT EXCHANGER Type-Fired -Unfired Gauge (Fired) ORIFICES Main Nat. Gas. Qty. Drill Size 2 5 L.P. Gas Qty. Drill Size 2 56 GAS VALVE PILOT SAFETY DEVICE Type BURNERS Type Number 2 POWER CONN. V / Ph / Hz Ampacity (In Amps).8 Max. Overcurrent Protection (Amps) 5 PIPE CONN. SIZE (IN.) DIMENSIONS Crated (In.) -3/ x 9- x 30- WEIGHT Shipping (Lbs.) / Net (Lbs) 39 / 29 AUXB060A92A Upflow / Horizontal 60,000 56,000 92. 30-60 9 x 7 /3 075 /55-3000.0-7x25 - in. 2 Round 3 5 3 56 3 9.2 5-3/ x 9- x 30-50 / 0 AUXB060A936A Upflow / Horizontal 60,000 56,000 92. 30-60 0 x 7 /3 075 /55-3000.0-7x25 - in. 2 Round 3 5 3 56 3 8. 5-3/ x 9- x 30-50 / 0 AUXB080A92A Upflow / Horizontal 80,000 7,000 92. 35-65 0 x 7 /3 075-30.35-7x25 - in. 2 Round 5 56 9.5 5-3/ x 9- x 30-58 / 8 tes Central Furnace heating designs are certified by AGA and ETL. 2 For U.S. applications, above input ratings (BTUH) are up to 2,000 feet, derate % per,000 feet for elevations above 2,000 feet above sea level. For Canadian applications, above input ratings (BTUH) are up to,500 feet, derate % per,000 feet for elevations above,500 feet above sea level. 3 Based on U.S. government standard tests. The above wiring specifications are in accordance with National Electrical Code; however, installations must comply with local codes. 5 Refer to the Vent Length Table in the Installer's Guide or the Allowable Vent Length label located on the furnace. 6 All *UX and *DX furnace models have a vent outlet diameter that equals 2". 2-23-06 5

Product Specifications MODEL TYPE RATINGS 2 Input BTUH Capacity BTUH (ICS) 3 AFUE (ICS) Temp. rise (Min.-Max.) F. BLOWER DRIVE Diameter - Width (In.). Used Speeds (.) CFM vs. in. w.g. Motor HP R.P.M. Volts / Ph / Hz COMBUSTION FAN - Type Drive -. Speeds Motor HP - RPM Volts / Ph / Hz FLA FILTER Furnished? Type Recommended Hi Vel. (.-Size-Thk.) VENT PIPE DIAMETER Min (In.) 56 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 Ampacity (In Amps) Max. Overcurrent Protection (Amps) PIPE CONN. SIZE (IN.) DIMENSIONS Crated (In.) WEIGHT Shipping (Lbs.) / Net (Lbs) AUXB080A92A Upflow / Horizontal 80,000 7,000 92. 35-65 0 x 8 /3 075-30.35-7x25 - in. 2 Round 5 56 9.5 5-3/ x 9- x 30-58 / 8 AUXC080A960A Upflow / Horizontal 80,000 7,000 92. 30-60 0 x 3/ 075 5-30.35 - x25 - in. 2.5 Round 5 56 3.5-3/ x 23 x 30-7 / 60 AUXC00A936A Upflow / Horizontal 00,000 93,000 92. 35-65 0 x 0 075 / - 350.75 - x25 - in. 2.5 Round 5 5 5 56 5.8 5-3/ x 23 x 30-7 / 60 tes Central Furnace heating designs are certified by AGA and ETL. 2 For U.S. applications, above input ratings (BTUH) are up to 2,000 feet, derate % per,000 feet for elevations above 2,000 feet above sea level. For Canadian applications, above input ratings (BTUH) are up to,500 feet, derate % per,000 feet for elevations above,500 feet above sea level. 3 Based on U.S. government standard tests. The above wiring specifications are in accordance with National Electrical Code; however, installations must comply with local codes. 5 Refer to the Vent Length Table in the Installer's Guide or the Allowable Vent Length label located on the furnace. 6 All *UX and *DX furnace models have a vent outlet diameter that equals 2". 6 2-23-06

General Data Product Specifications MODEL TYPE RATINGS 2 Input BTUH Capacity BTUH (ICS) 3 AFUE (ICS) Temp. rise (Min.-Max.) F. BLOWER DRIVE Diameter - Width (In.). Used Speeds (.) CFM vs. in. w.g. Motor HP R.P.M. Volts / Ph / Hz COMBUSTION FAN - Type Drive -. Speeds Motor HP - RPM Volts / Ph / Hz FLA FILTER Furnished? Type Recommended Hi Vel. (.-Size-Thk.) VENT PIPE DIAMETER Min (In.) 56 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 Ampacity (In Amps) Max. Overcurrent Protection (Amps) PIPE CONN. SIZE (IN.) DIMENSIONS Crated (In.) WEIGHT Shipping (Lbs.) / Net (Lbs) AUXC00A98A Upflow / Horizontal 00,000 93,000 92. 35-65 0 x 0 075 / - 350.75 - x25 - in. 2.5 Round 5 5 5 56 5 3.6-3/ x 23 x 30-7 / 60 AUXD00A960A Upflow / Horizontal 00,000 93,000 92. 35-65 x 0 3/ 00 / - 350 0.7-2x25 - in. 2.5 Round 5 5 5 56 5 2.9-3/ x 26- x 30-97 / 85 AUXDA960A Upflow / Horizontal,000 3,000 92. 0-70 x 0 3/ 00 / - 350 0.7-2x25 - in. 3 Round 6 5 6 56 6 2.9-3/ x 26- x 30-5 / 93 tes Central Furnace heating designs are certified by AGA and ETL. 2 For U.S. applications, above input ratings (BTUH) are up to 2,000 feet, derate % per,000 feet for elevations above 2,000 feet above sea level. For Canadian applications, above input ratings (BTUH) are up to,500 feet, derate % per,000 feet for elevations above,500 feet above sea level. 3 Based on U.S. government standard tests. The above wiring specifications are in accordance with National Electrical Code; however, installations must comply with local codes. 5 Refer to the Vent Length Table in the Installer's Guide or the Allowable Vent Length label located on the furnace. 6 All *UX and *DX furnace models have a vent outlet diameter that equals 2". 2-23-06 7

General Data Product Specifications MODEL TYPE RATINGS 2 Input BTUH Capacity BTUH (ICS) 3 AFUE (ICS) Temp. rise (Min.-Max.) F. BLOWER DRIVE Diameter - Width (In.). Used Speeds (.) CFM vs. in. w.g. Motor HP R.P.M. Volts / Ph / Hz COMBUSTION FAN - Type Drive -. Speeds Motor HP - RPM Volts / Ph / Hz FLA FILTER Furnished? Type Recommended Hi Vel. (.-Size-Thk.) VENT PIPE DIAMETER Min (In.) 56 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 Ampacity (In Amps) Max. Overcurrent Protection (Amps) PIPE CONN. SIZE (IN.) DIMENSIONS Crated (In.) WEIGHT Shipping (Lbs.) / Net (Lbs) ADXB00A92A Downflow / Horizontal 0,000 38,000 9.0 30-60 0 x 7 /5 080 /55-3000. 2 - x - in. 2 Round 2 5 2 56 2.8 5-3/ x 9- x 30-5 / 35 ADXB060A936A Downflow / Horizontal 60,000 56,000 9.0 30-60 0 x 8 /3 075 /55-3000.0 2 - x - in. 2 Round 3 5 3 56 3 9.2 5-3/ x 9- x 30-55 / 5 ADXB080A92A Downflow / Horizontal 80,000 7,000 9.0 35-65 x 8 075 5-30.35 2 - x - in. 2 Round 5 56. 5-3/ x 9- x 30-68 / 58 tes Central Furnace heating designs are certified by AGA and ETL. 2 For U.S. applications, above input ratings (BTUH) are up to 2,000 feet, derate % per,000 feet for elevations above 2,000 feet above sea level. For Canadian applications, above input ratings (BTUH) are up to,500 feet, derate % per,000 feet for elevations above,500 feet above sea level. 3 Based on U.S. government standard tests. The above wiring specifications are in accordance with National Electrical Code; however, installations must comply with local codes. 5 Refer to the Vent Length Table in the Installer's Guide or the Allowable Vent Length label located on the furnace. 6 All *UX and *DX furnace models have a vent outlet diameter that equals 2". 8 2-23-06

General Data MODEL TYPE RATINGS 2 Input BTUH Capacity BTUH (ICS) 3 AFUE (ICS) Temp. rise (Min.-Max.) F. BLOWER DRIVE Diameter - Width (In.). Used Speeds (.) CFM vs. in. w.g. Motor HP R.P.M. Volts / Ph / Hz COMBUSTION FAN - Type Drive -. Speeds Motor HP - RPM Volts / Ph / Hz FLA FILTER Furnished? Type Recommended Hi Vel. (.-Size-Thk.) VENT PIPE DIAMETER Min (In.) 56 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 Ampacity (In Amps) Max. Overcurrent Protection (Amps) PIPE CONN. SIZE (IN.) DIMENSIONS Crated (In.) WEIGHT Shipping (Lbs.) / Net (Lbs) Product Specifications ADXC00A98A Downflow / Horizontal 00,000 9,000 9.0 35-65 x 0 075 / - 350 0.7 2-6x - in. 2.5 Round 5 5 5 56 5 3.6-3/ x 23 x 30-85 / 75 ADXDA960A Downflow / Horizontal,000 0,000 9.0 0-70 x 0 3/ 075 / - 350 0.7 2-6x - in. 3 Round 6 5 6 56 6 3.9-3/ x 26- x 30-6 / 96 tes Central Furnace heating designs are certified by AGA and ETL. 2 For U.S. applications, above input ratings (BTUH) are up to 2,000 feet, derate % per,000 feet for elevations above 2,000 feet above sea level. For Canadian applications, above input ratings (BTUH) are up to,500 feet, derate % per,000 feet for elevations above,500 feet above sea level. 3 Based on U.S. government standard tests. The above wiring specifications are in accordance with National Electrical Code; however, installations must comply with local codes. 5 Refer to the Vent Length Table in the Installer's Guide or the Allowable Vent Length label located on the furnace. 6 All *UX and *DX furnace models have a vent outlet diameter that equals 2". 2-23-06 9

Performance Data FURNACE AIRFLOW (CFM) VS. EXTERNAL STATIC PRESSURE (in. w.c.) MODEL SPEED TAP 0.0 0. 0.30 0.0 0.50 0.60 0.70 0.80 0.90 AUXB00A92A AUXB060A92A AUXB060A936A AUXB080A92A AUXB080A92A AUXC080960A AUXC00A936A AUXC00A98A AUXD00A960A AUXDA960A - HIGH - Black - HIGH - Black - HIGH - Black - HIGH - Black - HIGH - Black - HIGH - Black - HIGH - Black - HIGH - Black - HIGH - Black - HIGH - Black 03 90 837 729 27 05 99 726 39 250 02 957 566 250 073 809 78 375 78 859 230 980 668 375 58 837 629 30 5 932 762 558 2 208 772 80 25 205 77 5 992 895 798 69 75 055 956 72 359 232 092 9 522 238 068 80 683 367 67 863 2262 963 65 372 983 797 603 5 980 875 7 56 2358 83 759 77 206 92 72 7 930 8 752 657 7 06 9 73 3 2 069 922 70 27 059 797 65 37 7 856 229 96 60 368 9 753 573 00 906 88 677 533 230 58 75 7 2358 78 736 9 885 79 705 600 057 956 879 698 260 60 03 89 5 9 05 792 5 3 9 839 270 99 626 36 835 696 536 37 826 76 65 77 2235 07 723 58 230 5 7 0 NOTE: See page 2 for factory heat & cool speed tap settings 82 726 69 55 99 90 832 67 96 06 986 853 356 58 025 783 70 268 082 8 22 892 6 35 755 626 87 33 76 673 552 2 265 956 700 226 2 703 30 70 650 560 78 925 836 776 637 22 00 925 806 287 995 76 393 20 036 772 8 853 587 330 672 553 2 289 69 577 63 350 83 893 657 28 950 677 00 67 559 38 376 839 767 709 582 038 962 852 750 2 063 957 738 3 39 982 723 975 8 562 305 578 63 33 228 55 8 373 278 0 829 63 386 206 887 65 369 58 305 2 77 683 628 506 95 873 766 686 39 006 90 705 232 056 99 663 893 75 5 267 67 350 22 38 28 37 266 75 95 75 5 327 7 826 593 325 From D330656 Sh. Rev. 2 57 390 279 78 563 582 53 06 853 77 668 6 058 92 85 659 7 960 87 592 8 687 60 229 30 2 7 027 305 260 58 07 828 679 75 268 928 765 535 280 CFM VS. TEMPERATURE RISE Cubic Feet Per Minute (CFM) MODEL 600 700 800 900 000 00 0 300 00 500 600 700 800 900 00 200 20 AUXB00A92A 56 8 2 37 33 AUXB060A92A 56 50 5 2 39 36 AUXB060A936A 56 50 5 2 39 36 AUXB080A92A 6 56 5 8 2 AUXB080A92A 6 56 5 8 2 AUXC080A960A 6 56 5 8 2 39 37 35 33 32 30 AUXC00A936A 6 60 56 52 9 6 2 AUXC00A98A 6 60 56 52 9 6 2 AUXD00A960A 6 60 56 52 9 6 2 0 38 AUXDA960A 63 59 56 53 50 8 6 From C3005 Sh. Rev. 9 0 2-23-06

Performance Data FURNACE AIRFLOW (CFM) VS. EXTERNAL STATIC PRESSURE (in. w.c.) MODEL SPEED TAP 0.0 0. 0.30 0.0 0.50 0.60 0.70 0.80 0.90 ADXB00A92A ADXB060A936A ADXB080A92A ADXC00A98A ADXDA960A - HIGH - Black - HIGH - Black - HIGH - Black - HIGH - Black - HIGH - Black 998 856 753 67 87 32 8 877 57 87 388 263 892 779 630 223 57 765 68 965 832 728 67 25 29 7 863 98 36 38 23 827 726 587 6 238 00 733 52 922 797 69 58 362 20 3 89 5 382 302 96 762 672 5 388 62 93 700 35 870 75 650 538 286 82 06 8 386 325 29 50 688 605 85 38 0 883 652 09 807 695 596 90 9 2 009 79 323 265 9 095 6 538 26 308 939 822 603 382 735 628 533 35 25 07 93 739 25 2 26 032 53 60 362 26 863 752 552 336 653 550 60 375 00 989 877 686 80 37 056 960 8 38 297 8 786 68 500 290 56 62 378 308 935 869 779 62 0 069 979 879 35 29 8 08 706 595 2 225 From D33070 Rev.0 59 363 286 235 830 769 68 537 06 998 896 790 260 0 9 032 625 508 37 59 CFM VS. TEMPERATURE RISE MODEL Cubic Feet Per Minute (CFM) 600 700 800 900 000 00 0 300 00 500 600 700 800 900 00 200 20 2300 200 ADXB00A92A 56 8 2 37 3 ADXB060A936A 63 56 5 6 2 39 36 3 ADXB080A92A 6 56 52 8 5 2 0 37 35 ADXC00A98A 65 60 56 53 50 7 2 0 38 37 35 ADXDA960A 67 63 59 56 53 5 8 6 2 From C330767 Sh. Rev. 3 2-23-06

Electrical Data AUX Wiring From Dwg. D32565 Rev. 2 2-23-06

AUX Schematic From Dwg. D32565 Rev. 2-23-06 3

ADX Wiring From Dwg. D32566 Rev. 0 2-23-06

Electrical Data ADX Schematic From Dwg. D32566 Rev. 0 2-23-06 5

Field Wiring FIELD WIRING DIAGRAM FOR STAGE FURNACE STAGE HEATING USING A STAGE HEATING THERMOSTAT NO COOLING SEE NOTE 7 FURNACE TWIN B/C SEE NOTE 6 B/C TO 5 V PH., 60 HZ., POWER SUPPLY PER LOCAL CODES HUM SEE NOTE 5 EAC SEE NOTE 5 From Dwg. B337 Rev. FIELD WIRING DIAGRAM FOR STAGE FURNACE STAGE HEATING, STAGE COOLING USING A STAGE HEATING, STAGE COOLING THERMOSTAT (OUTDOOR SECTION WITHOUT TRANSFORMER) FURNACE OUTDOOR UNIT (NO TRANSFORMER) SEE NOTE 6 B/C SEE NOTE 8 B/C TO 5 V PH., 60 HZ., POWER SUPPLY PER LOCAL CODES HUM SEE NOTE 5 EAC SEE NOTE 5 From Dwg. B30388 Rev. 2 6 2-23-06

Twinning Field Wiring TWINNING CONNECTION DIAGRAM FOR TWINNING STAGE FURNACES WITH SINGLE WIRE TWINNING FEATURE STAGE HEAT STAGE HEATING ONLY THERMOSTAT ONLY THERMOSTAT (WITH FAN SWITCH) FURNACE NO. FURNACE NO. 2 BLOWER OPERATION OF UNIT NO. 2 IS SYNCRONIZED WITH UNIT NO. VIA SIGNALS FROM TWIN CONNECTION. TWIN TWIN SEE NOTE ISOLATION RELAY (FIELD SUPPLIED) SEE NOTE R R ISOLATION RELAY SEE NOTE B/C SEE NOTE 3 B/C B/C From Dwg. 2B322 Rev. 3 OUTDOOR UNIT (WITH TRANSFORMER) TWINNING CONNECTION DIAGRAM FOR TWINNING STAGE FURNACES WITH SINGLE WIRE TWINNING FEATURE STAGE HEAT / STAGE COOL THERMOSTAT STAGE HEATING / COOLING THERMOSTAT FURNACE NO. FURNACE NO. 2 BLOWER OPERATION OF UNIT NO. 2 IS SYNCRONIZED WITH UNIT NO. VIA SIGNALS FROM TWIN CONNECTION. TWIN TWIN RC ISOLATION RELAY (FIELD SUPPLIED) SEE NOTE 3 SEE NOTE OUTDOOR UNIT (NO TRANSFORMER) R ISOLATION RELAY SEE NOTE B/C SEE NOTE 5 B/C R B/C ISOLATION RELAY (FIELD SUPPLIED) SEE NOTE From Dwg. 2B323 Rev. 2 2-23-06 7

Dimensions AUX Outline Drawing (ALL DIMENSIONS ARE IN INCHES) From Dwg. C388 Rev. 6 8 2-23-06

ADX Outline Drawing (ALL DIMENSIONS ARE IN INCHES) From Dwg. C3885 Rev. 6 2-23-06 9

NOTES American Standard Heating & Air Conditioning 60 Troup Highway Tyler, TX 75707 Literature Order Number 2-23-06 File Number 2-23-06 Supersedes 2-23-05 Date 0/09 American Standard Heating & Air Conditioning has a policy of continuous product and product data improvement and it reserves the right to change design and specifications without notice.