FORM NO. HSC-543 AIR HANDLERS

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1 FORM NO. HSC- AIR HANDLERS AH10X1 High Efficiency featuring New Industry Standard R-10A Refrigerant Features AH10X1 features the new X-1 (ECM) motor which provides enhanced SEER performance with most Sure Comfort outdoor units. 1 1 /2 ton [. kw] through ton [17.6 kw] models are between 2 1 /2 to 1 /2 inches [1080 to 110 mm] tall and 22 inches [9 mm] deep. Versatile -way convertible design for upflow, downflow, horizontal left and horizontal right applications. Factory-installed high efficiency indoor coil. All models meet or exceed 0 to 00 CFM [16 to 189 L/s] per ton at. inches [.7 kpa] of external static pressure. Enhanced airflow up to.7" external static pressure. Sturdy construction with 1.0 inch [.2 kpa] of reinforced foil faced jacket insulation for excellent thermal and sound insulation. Field-installed auxiliary electric heater kits provide exact heat for indoor comfort. Kits include circuit breakers which meet UL and cul requirements for service disconnect.

2 Table of Contents TABLE OF CONTENTS Engineering Features... Model Number Identification... Dimensional Data... Airflow Directional Data...6 Airflow Performance Data Electrical Data Electrical Wiring...16 Accessories...16 Limited Warranty

3 Engineering Features Engineering Features The most compact unit design available, all standard heat air handler models only 2 1 /2 to 1 /2 inches [1079 to 109 mm] high. Attractive pre-painted cabinet exterior. Rugged wall steel cabinet construction, designed for added strength and versatility. 1.0" foil faced insulation mechanically retained in blower compartment for excellent thermal and sound performance. Four leg blower motor mount. Blower housing with controls, motor and blower. Slide out design for service and maintenance convenience. Traditional open wire element design for heat applications. Field convertible for vertical downflow, horizontal left hand or right hand air supply. combustible floor base accessories fit all model sizes when required for downflow installations on combustible floors. Indoor coil design provides low air side pressure drop, high performance and extremely compact size. Expansion valve on indoor coil provides for operation with air conditioning or heat pump using the same coil. Coils are constructed of aluminum fins bonded to internally grooved copper tubing. Molded polymer corrosion resistant condensate drain pan is provided on all indoor coils. Supply duct flanges provided as standard on air handler cabinet. Provisions for field electrical, connections available from either side or top of the air handler cabinet. Connection point for high voltage wiring is inside the air handler cabinet. Low voltage connection is made on the outside of the air handler cabinet. Concentric knockouts are provided for power connection to cabinet. Installer may pull desired hole size up to 2 inches [1 mm] for 1 1 /2 inch [8 mm] conduit. Front refrigerant and drain connections.

4 Model Number Identification Model Number Identification AH 10 X1 A 17 2 J M Application M = A/C or HP Multi Position Voltage J = 208/20V/1/60 Capacity 18 = 18,000 BTU/H [.27 kw] 2 = 2,000 BTU/H [7.0 kw] 0 = 0,000 BTU/H [6.79 kw] 6 = 6,000 BTU/H [10. kw] 8 = 8,000 BTU/H [11.1 kw] 2 = 2,000 BTU/H [12.1 kw] 8 = 2,000 BTU/H [1.06 kw] 60 = 60,000 BTU/H [17.8 kw] Available Models at J Voltage AH10X1A172JM AH10X1A176JM AH10X1A218JM AH10X1A218JM AH10X1A28JM AH10X1A260JM Cabinet Size 17 = 17." [1.8 mm] ( CFM) 21 = 21" [. mm] ( CFM) 2 = 2." [609.6 mm] ( CFM) Design Variation A = 1st Design Type Refrigerant 10 = R-10A Classification AH = Air Handler

5 Unit Dimensions ELECTRICAL CONNECTIONS MAY EXIT TOP OR EITHER SIDE HIGH VOLTAGE CONNECTION 7/8 [22.2 mm], 1/2 [27.8 mm], 11/2 [0 mm] DIA. KNOCKOUTS. SUPPLY AIR 10 /16 [262 mm] NOTE: 2 CLEARANCE REQUIRED IN FRONT OF UNIT FOR FILTER AND COIL MAINTENANCE. W Dimensional Data LOW VOLTAGE CONNECTION /8 [1.9 mm] AND 7/8 [22.2 mm] KNOCKOUT A Return Air Opening Dimensions Model Cabinet Size Return Air Opening Width (Inches) Return Air Opening Depth/Length (Inches) /8 19 / /8 19 / /8 19 / H AUXILIARY DRAIN CONNECTION / [19.1 mm] FEMALE PIPE THREAD (NPT) HORIZONTAL APPLICATION ONLY PRIMARY DRAIN CONNECTION / [19.1 mm] FEMALE PIPE THREAD (NPT) AUXILIARY DRAIN CONNECTION / [19.1 mm] FEMALE PIPE THREAD (NPT) UPFLOW/DOWNFLOW APPLICATION ONLY LIQUID LINE CONNECTION COPPER (SWEAT) 19 1 /2 [9 mm] RETURN AIR OPENING /16 [1 mm] VAPOR LINE CONNECTION COPPER (SWEAT) UPFLOW UNIT SHOWN: UNIT MAY BE INSTALLED UPFLOW, DOWNFLOW, HORIZONTAL RIGHT OR LEFT AIR SUPPLY. HORIZONTAL ADAPTER KIT VAPOR LINE CONNECTION AUXILIARY HORIZONTAL DRAIN CONNECTION 1 /16 [11 mm] 1 /8 [10 mm] 1 /16 [76 mm] 1 /16 [8 mm] 11 /8 [29 mm] 1 1 /16 [27 mm] 1 /8 [ mm] 2 1 /16 [71 mm] 1 / [1 mm] /8 [16 mm] UPFLOW UNIT SHOWN: UNIT MAY BE INSTALLED UPFLOW, DOWNFLOW, HORIZONTAL RIGHT OR LEFT AIR SUPPLY. PRIMARY DRAIN CONNECTION LIQUID LINE CONNECTION VERTICAL DRAIN PAN AUXILIARY UPFLOW/DOWNFLOW ( ) Designates Unit with Double Coil Cabinet DRAIN CONNECTION Unit Dimensions & Weights Refrigerant Connections [ ] Air Designates Flow Metric Conversions Unit Weight/Shipping Weight Model Sweat (In.) [mm] ID Unit Unit Supply CFM (Nom.) [L/s] (Lbs.) [kg] Width Height Duct ( ) Designates Unit with Double Coil Cabinet Size W In. [mm] H In. [mm] A In. [mm] Unit With Unit Dimensions Liquid & WeightsVapor Lo Hi Coil (Max. KW) 172 /8 [9.] / [19.0] 17 1 /2 [] 2 1 /2 [1080] 16 1 /2 [06] 600 [28] 800 [78] 82/96 [7/] 176 /8 [9.] / [19.0] 17 1 /2 [] 2 1 /2 [1080] 16 1 /2 [06] 1000 [72] 1200 [66] 92/106 [7/8] 218 /8 [9.] 7/8 [22.2] 21 1 /2 [] 0 1 /2 [1282] 19 1 /2 [9] 1000 [72] 1200 [66] 10/166 [68/7] 218 /8 [9.] 7/8 [22.2] 21 1 /2 [] 0 1 /2 [1282] 19 1 /2 [9] 100 [661] 1600 [7] 10/166 [68/7] 28 /8 [9.] 7/8 [22.2] 2 1 /2 [622] 0 1 /2 [1282] 2 1 /2 [8] 1600 [7] 162/180 [7/81] 260 /8 [9.] 7/8 [22.2] 2 1 /2 [622] 1 /2 [110] 2 1 /2 [8] 1800 [80] 181/198 [82/90] *Maximum dehumidification airflow.

6 Airflow Directional Data Airflow Directional Data UPFLOW DOWNFLOW HORIZONTAL LEFT HAND AIRFLOW HORIZONTAL RIGHT HAND AIRFLOW 6

7 Airflow Performance Data Airflow Performance Airflow performance data is based on cooling performance with a coil and no filter in place. Select performance table for appropriate unit size, voltage and number of electric heaters to be used. Make sure external static applied to unit allows operation within the minimum and maximum limits shown in table below for both cooling and electric heat operation. For optimum blower performance, operate the unit in the. [8 mm] to.7 inches [18 mm] W.C. external static range. Units with coils should be applied with a minimum of.1 inch [ mm] W.C. external static range. Airflow Operating Limits Model Cabinet Size 17 17/21 Cooling BTUH x 1,000 Cooling Tons Nominal Heat Pump or Air Conditioning Maximum Heat/Cool CFM [L/s] (7. CFM [18 L/s]/1,000 BTUH) (0 CFM [212 L/s]/Ton Nominal) Heat Pump or Air Conditioning Nominal Heat/Cool CFM [L/s] (. CFM [16 L/s]/1,000 BTUH) (00 CFM [189 L/s]/Ton Nominal) Heat Pump or Air Conditioning Minimum Heat/Cool CFM [L/s] (0.0 CFM [1 L/s]/1,200 BTUH) (60 CFM [170 L/s]/Ton Nominal) Maximum kw Electric Heating & Minimum Electric Heat CFM [L/s] [19] 600 [28] 0 [2] 1 87 [20] [2] 800 [78] 720 [0] [291] [1] 1000 [72] 900 [2] [8] [67] 1200 [66] 1080 [10] [97] [7] 100 [661] 1260 [9] [] [80] 1600 [7] 10 [680] [709] [80] 1600 [7] 10 [680] [709] Maximum Electric Heat Rise F [ C] 80 [26.7] 6 [17.2] 66 [18.9] 1 [10.6] 2 [11.1] 9 [9.] 0 [10] 0 [10] [67] 1200 [66] 1080 [10] [92] [911] 1800 [80] 1620 [76] [786] [12.2] 7

8 Airflow Performance Data 11V/208V/20V/60V Airflow Performance Data AH10X1 (X-1 (ECM) ) Model No with 1 kw with 1 kw with 18 kw with 18 kw Tonnage Application 1. Ton 1. Ton 2 Ton 2 Ton 2. Ton 2. Ton Ton Ton Speed From Factory Manufacturer Recommended Air-Flow Range (Min/Max) CFM 09/681 CFM [20/21 L/s] 90/666 CFM [21/1 L/s] 70/61 CFM [/07 L/s] 711/626CFM [6/29 L/s] 9/108 CFM [1/12 L/s] 910/109 CFM [29/00 L/s] 110/127 CFM [/602 L/s] 110/120 CFM [21/90 L/s] Blower Size/ HP [W] Speed X-1 CFM [L/s] Air Delivery/RPM/Watts 11/208/20 Volts External Static Pressure Inches W.C. [kpa] # of Speed 0.1 [.02] 0.2 [.0] 0. [.07] 0. [.10] 0. [.12] 0.6 [.1] 0.7 [.17] CFM 689 [2] 6 [0] 602 [28] 6 [266] 09 [20] 2 RPM x6 Watts / HP [29] Speed CFM 681 [21] 6 [0] 60 [28] RPM Watts CFM 670 [16] 62 [29] 8 [27] [27] 90 [21] 2 RPM x6 Watts / HP [29] Speed CFM 666 [1] 629 [297] 88 [277] RPM Watts CFM 87 [1] 89 [96] 80 [79] 762 [60] 70 [] RPM x6 Watts / HP [29] Speed CFM 862 [07] 828 [91] 801 [78] RPM Watts CFM 86 [0] 820 [87] 78 [70] 7 [1] 711 [6] RPM x6 Watts / HP [29] Speed CFM 87 [9] 80 [79] 776 [66] RPM Watts CFM 109 [16] 100 [96] 1017 [80] 977 [61] 9 [1] 2 RPM x8 Watts /2 HP [7] Speed CFM 108 [12] 100 [91] 1001 [72] RPM Watts CFM 1068 [0] 102 [8] 992 [68] 92 [9] 910 [29] 2 RPM x8 Watts /2 HP [7] Speed CFM 109 [00] 101 [79] 976 [61] RPM Watts CFM 1270 [99] 127 [8] 1199 [66] 116 [0] 110 [] RPM x8 Watts /2 HP [7] Speed CFM 127 [602] 12 [87] 1211 [71] RPM Watts CFM 12 [88] 1212 [72] 117 [] 110 [8] 110 [21] RPM x8 Watts /2 HP [7] Speed CFM 120 [90] 1219 [7] 1186 [60] RPM Watts

9 Airflow Performance Data 11V/208V/20V/60V Airflow Performance Data AH10X1 (X-1 (ECM) ) (con t.) Model No with 18 kw with 18 kw Tonnage Application 2. Ton 2. Ton Ton Ton Speed From Factory Manufacturer Recommended Air-Flow Range (Min/Max) CFM 8/110 CFM [0/21 L/s] 828/1016 CFM [91/79 L/s] 1070/1288 CFM [0/608 L/s] 102/127 CFM [92/9 L/s] Blower Size/ HP [W] # of Speed 10x10 / HP [9] Speed 10x10 / HP [9] Speed 10x10 / HP [9] Speed 10x10 / HP [9] Speed Speed 2 2 PSC CFM [L/s] Air Delivery/RPM/Watts 11/208/20 Volts External Static Pressure Inches W.C. [kpa] 0.1 [.02] 0.2 [.0] 0. [.07] 0. [.10] 0. [.12] 0.6 [.1] 0.7 [.17] CFM 107 [06] 1016 [79] 96 [] 906 [28] 8 [0] RPM Watts CFM RPM Watts CFM 10 [9] 988 [66] 96 [2] 880 [1] 828 [91] RPM Watts CFM RPM Watts CFM 126 [97] 122 [77] 1171 [] 1112 [2] 1070 [0] RPM Watts CFM RPM Watts CFM 12 [82] 119 [6] 112 [9] 108 [12] 102 [92] RPM Watts CFM RPM Watts Notes: X-1 (ECM) motor speed changes. All X-1 (ECM) motors have speed tabs. Speed tab 1 is for continuous fan. Speed tab 2 (low static) and Speed tab (high static) are for lower tonnage. Speed tab (low static) and Speed tab (high static) are for higher tonnage. X-1 (ECM) air handlers are always shipped from factory at Speed tab, except for -82, which is set at Speed tab. For instance, AH10X1-HM217JA is always shipped at high static 2-ton airflow (Speed tab ). To change to 1.-ton airflow, move the blue wire to Speed tab 2 or on the X-1 (ECM) motor. The low static Speed tab 2 (lower tonnage) and (higher tonnage) are used for external static below 0." WC. The high static Speed tab (lower tonnage) and (higher tonnage) are used for external static exceeding 0." WC. Move the blue wire to the appropriate Speed tab as required by the application needs. The airflow for continuous fan (Speed tab 1) is always set at 0% of the Speed tab. The above airflow table lists the airflow information for air handlers without heater and air handler with maximum heater allowed for each model. The following formula can be used to calculate the approximate airflow, if a smaller (N kw) than the maximum heater kit is installed. Approximate Airflow = Airflow without heater (Airflow without heater Airflow with maximum heater) x (N kw/maximum heater kw) 9

10 Airflow Performance Data 11V/208V/20V/60V Airflow Performance Data AH10X1 (X-1 (ECM) ) (con t.) Model No with 20 kw with 2 kw with 2 kw with 0 kw Tonnage Application. Ton. Ton Ton Ton Ton Ton Ton Ton Speed From Factory Manufacturer Recommended Air-Flow Range (Min/Max) CFM 17/17 CFM [61/68 L/s] 1297/1 CFM [612/629 L/s] 1/16 CFM [72/781 L/s] 19/161 CFM [706/762 L/s] 1/172 CFM [729/817 L/s] 10/1692 CFM [710/798 L/s] 117/1699 CFM [71/800 L/s] 177/16 CFM [687/78 L/s] Blower Size/ HP [W] # of Speed 10x10 / HP [9] Speed 10x10 / HP [9] Speed 10x10 / HP [9] Speed 10x10 / HP [9] 2 Speed 11x11 / HP [9] Speed 11x11 / HP [9] Speed 11x11 / HP [9] Speed 11x11 / HP [9] Speed Speed PSC CFM [L/s] Air Delivery/RPM/Watts 11/208/20 Volts External Static Pressure Inches W.C. [kpa] 0.1 [.02] 0.2 [.0] 0. [.07] 0. [.10] 0. [.12] 0.6 [.1] 0.7 [.17] CFM 17 [69] 12 [681] 101 [661] 17 [68] 17 [61] RPM Watts CFM 17 [68] 1 [676] 102 [662] RPM Watts CFM 1 [676] 102 [662] 161 [62] 1 [629] 1297 [612] RPM Watts CFM 1 [629] 100 [61] 1267 [98] RPM Watts CFM 166 [786] 161 [770] 1601 [76] 172 [72] 1 [72] RPM Watts CFM 16 [781] 162 [766] 16 [78] RPM Watts CFM 162 [767] 191 [71] 161 [77] 12 [72] 19 [706] RPM Watts CFM 161 [762] 18 [78] 12 [719] RPM Watts CFM 178 [82] 1669 [788] 169 [77] 199 [7] 1 [729] RPM Watts CFM 172 [817] 168 [79] 160 [769] RPM Watts CFM 1708 [806] 1629 [769] 199 [7] 19 [76] 10 [710] RPM Watts CFM 1692 [798] 16 [77] 190 [70] RPM Watts CFM 170 [800] 1661 [70] 162 [770] 172 [71] 117 [91] RPM Watts CFM 1699 [00] 166 [776] 1601 [72] RPM Watts CFM 166 [99] 1621 [96] 192 [71] 12 [72] 177 [697] RPM Watts CFM 167 [787] 1606 [79] 161 [7] RPM Watts

11 Airflow Performance Data 11V/208V/20V/60V Airflow Performance Data AH10X1 (X-1 (ECM) ) (con t.) Model No with 0 kw Tonnage Application Ton Ton Speed From Factory Manufacturer Recommended Air-Flow Range (Min/Max) CFM 179/190 CFM [821/899 L/s] 1699/186 CFM [802/880 L/s] Blower Size/ X-1 CFM [L/s] Air Delivery/RPM/Watts 11/208/20 Volts HP [W] Speed External Static Pressure Inches W.C. [kpa] # of Speed 0.1 [.02] 0.2 [.0] 0. [.07] 0. [.10] 0. [.12] 0.6 [.1] 0.7 [.17] CFM 1902 [898] 1862 [879] 1809 [8] 1781 [80] 179 [821] RPM x11 Watts / HP [9] Speed CFM 190 [899] 1866 [881] 182 [86] RPM Watts CFM 1862 [879] 1822 [860] 1769 [8] 171 [822] 1699 [802] RPM x11 Watts / HP [9] Speed CFM 186 [880] 1826 [862] 1792 [86] RPM Watts Notes: All 208/20V PSC motors have voltage taps for 208 and 20 volts. All 208/20V PSC motors are shipped on high speed and 20 volts. If the application external static is less than 0." WC, adjust the motor speed to the low static speed as described below: Unplug the black motor wire off the relay on the control board and plug in the red motor wire. Replace the cap on the black motor wire. Voltage change (208/20V motors): Move the orange lead to transformer 208V tap from 20V tap. Replace the wire cap on 20V tap. Unplug the purple motor wire off the transformer and plug in the yellow motor wire. Replace the cap on the purple motor wire. The above airflow table lists the airflow information for air handlers without heater and air handler with maximum heater allowed for each model. The following formula can be used to calculate the approximate airflow, if a smaller (N kw) than the maximum heater kit is installed. Approximate Airflow = Airflow without heater - (Airflow without heater - Airflow with maximum heater) x (N kw/maximum heater kw) 11

12 Electrical Data Electrical Data Blower Only No Electric Heat Model AH10X1 Voltage Application Phase* Hertz HP [W] RPM Speeds Amps. Minimum Ampacity 172 1/ [29] /2 [7] /20 1 & /218/28 / [9] / [9] * Blower motors are all single phase motors. Maximum Protector 12

13 Electrical Data Electrical Data With Electric Heat Installation of the U.L. Listed original equipment manufacturer provided heater kits listed in the following table is recommended for all auxiliary heating requirements. Air Handler Model AH10X /218 Model No. kw (208/20V) (80V) PH/HZ No. Elements kw Per Type Supply Single Multiple Amps. Ampacity Minimum Ampacity Maximum Protector RXBH-172?0J 2.2/.0 1/ SINGLE 10.8/ /18 20/20 RXBH-172?0J.6/.8 1/ SINGLE 17./ /27 2/0 RXBH-172?07J./7.2 1/ SINGLE 26.0/ /0 /0 RXBH-172?10J 7.2/9.6 1/ SINGLE.6/ /2 0/60 RXBH-172A1J 9./12. 1/ SINGLE.1/ /68 60/70 RXBH-172A1J.1/.2 1/ MULTIPLE CKT 1 1.0/ /2 2/2 6./8. 1/ MULTIPLE CKT 2 0.1/ / 0/ RXBH-172A07C./7.2 /60-2. SINGLE 1.0/ /2 2/2 RXBH-172A10C 7.2/9.6 / SINGLE 20.0/ /1 0/ RXBH-172A1C 9./12. / SINGLE 26.1/ /0 /0 RXBH-172?0J 2.2/.0 1/ SINGLE 10.8/ /20 20/20 RXBH-172?0J.6/.8 1/ SINGLE 17./ /29 0/0 RXBH-172?07J./7.2 1/ SINGLE 26.0/ /1 0/ RXBH-172?10J 7.2/9.6 1/ SINGLE.6/ / 0/60 RXBH-172A1J 9./12. 1/ SINGLE.1/ /69 60/70.1/.2 1/ MULTIPLE CKT 1 1.0/ /26 2/0 RXBH-172A1J 6./8. 1/ MULTIPLE CKT 2 0.1/ / 0/ RXBH-172A1J 10.8/1. 1/ SINGLE 1.9/ /79 70/80.6/.8 1/ MULTIPLE CKT 1 17./ /29 0/0 RXBH-172A1J 7.2/9.6 1/ MULTIPLE CKT 2.6/ /0 /0 RXBH-172A18J 12.8/17 1/ SINGLE 61.6/ /92 90/100 RXBH-172A18J./.7 1/ MULTIPLE CKT 1 20./ / 0/ 8.7/11. 1/ MULTIPLE CKT 2 1.1/ /9 60/60 RXBH-172A07C./7.2 /60-2. SINGLE 1.0/ /26 2/0 RXBH-172A10C 7.2/9.6 / SINGLE 20.0/ / 0/ RXBH-172A1C 9./12. / SINGLE 26.1/ /2 0/ RXBH-172A1C 10.8/1. / SINGLE 0.0/ /7 /0 RXBH-172A18C 12.8/17.0 / SINGLE./ / 0/60 RXBH-172?0J 2.2/.0 1/ SINGLE 10.8/ /21 20/2 RXBH-172?0J.6/.8 1/ SINGLE 17./ /0 0/0 RXBH-172?07J./7.2 1/ SINGLE 26.0/ / 0/ RXBH-172?10J 7.2/9.6 1/ SINGLE.6/ / 0/60 RXBH-172A1J 9./12. 1/ SINGLE.1/ /71 60/70.1/.2 1/ MULTIPLE CKT 1 1.0/ /27 2/0 RXBH-172A1J 6./8. 1/ MULTIPLE CKT 2 0.1/ / 0/ RXBH-172A1J 10.8/1. 1/ SINGLE 1.9/ /80 70/80.6/.8 1/ MULTIPLE CKT 1 17./ /0 0/0 RXBH-172A1J 7.2/9.6 1/ MULTIPLE CKT 2.6/ /0 /0 RXBH-172A18J 12.8/17 1/ SINGLE 61.6/ /9 90/100./.7 1/ MULTIPLE CKT 1 20./ / 0/ RXBH-172A18J 8.7/11. 1/ MULTIPLE CKT 2 1.1/ /9 60/60 RXBH-2A20J (-ton only) 1./19.2 1/ SINGLE 69.2/ /10 100/110 Supply circuit protective devices may be fuses or HACR type circuit breakers. Largest motor load is included in single circuit and multiple circuit 1. If non-standard fuse size is specified, use next size larger standard fuse size. J Voltage (20V) single phase air handler is designed to be used with single or three phase 20 volt electric heaters. In the case of connecting -phase power to the air handler terminal block without the heater, bring only two leads to the terminal block cap, insulate and fully secure the third lead. 1

14 Electrical Data Electrical Data With Electric Heat (Cont.) Installation of the U.L. Listed original equipment manufacturer provided heater kits listed in the following table is recommended for all auxiliary heating requirements. Air Handler Model AH10X1 218/ Model No. kw (208/20V) (80V) PH/HZ No. Elements kw Per Type Supply Single Multiple Supply circuit protective devices may be fuses or HACR type circuit breakers. Largest motor load is included in single circuit and multiple circuit 1. If non-standard fuse size is specified, use next size larger standard fuse size. J Voltage (20V) single phase air handler is designed to be used with single or three phase 20 volt electric heaters. In the case of connecting -phase power to the air handler terminal block without the heater, bring only two leads to the terminal block cap, insulate and fully secure the third lead. Amps. Ampacity Minimum Ampacity Maximum Protector RXBH-2A20J (-ton only) 7.2/9.6 1/ MULTIPLE CKT 1.6/ / 0/60 7.2/9.6 1/ MULTIPLE CKT 2.6/ /0 /0 RXBH-2A2J (-ton only) 18.0/2.0 1/ SINGLE 86./ /10 12/10 RXBH-2A2J (-ton only) 6.0/8.0 1/ MULTIPLE CKT /..0 1/7 /0 6.0/8.0 1/ MULTIPLE CKT / /2 0/ 6.0/8.0 1/ MULTPLE CKT 28.8/ /2 0/ RXBH-172A07C./7.2 /60-2. SINGLE 1.0/ /27 2/0 RXBH-172A10C 7.2/9.6 / SINGLE 20.0/ / 0/ RXBH-172A1C 9./12. / SINGLE 26.1/ / 0/ RXBH-172A1C 10.8/1. / SINGLE 0.0/.6.0 /9 /0 RXBH-172A18C 12.8/17.0 / SINGLE./ /7 0/60 RXBH-2A20C (-ton only) / SINGLE 0.0/6.2.0 /6 60/70 7.2/9.6 / MULTIPLE CKT / / 0/ RXBH-2A20C (-ton only) 7.2/9.6 / MULTIPLE CKT / /29 2/0 RXBH-2A2C (-ton only) 18.0/2.0 / SINGLE 0.0/ /78 70/80 RXBH-2A2C (-ton only) 9.0/12.0 / MULTIPLE CKT 1 2.0/ /2 0/ 9.0/12.0 / MULTIPLE CKT 2 2.0/ /7 /0 RXBH-172?0J 2.2/.0 1/ SINGLE 10.8/ /22 20/2 RXBH-172?0J.6/.8 1/ SINGLE 17./ /1 0/ RXBH-172?07J./7.2 1/ SINGLE 26.0/ / 0/ RXBH-172?10J 7.2/9.6 1/ SINGLE.6/ /6 0/60 RXBH-172A1J 9./12. 1/ SINGLE.1/ /71 60/70.1/.2 1/ MULTIPLE CKT 1 1.0/ /28 2/0 RXBH-172A1J 6./8. 1/ MULTIPLE CKT 2 0.1/ / 0/ RXBH-172A1J 10.8/1. 1/ SINGLE 1.9/ /81 80/90.6/.8 1/ MULTIPLE CKT 1 17./ /1 0/ RXBH-172A1J 7.2/9.6 1/ MULTIPLE CKT 2.6/ /0 /0 RXBH-172A18J 12.8/17 1/ SINGLE 61.6/ /9 90/100./.7 1/ MULTIPLE CKT 1 20./ /6 0/ RXBH-172A18J 8.7/11. 1/ MULTIPLE CKT 2 1.1/ /9 60/60 RXBH-2A20J 1./19.2 1/ SINGLE 69.2/80.6 9/ / /9.6 1/ MULTIPLE CKT 1.6/ /6 0/60 RXBH-2A20J 7.2/9.6 1/ MULTIPLE CKT 2.6/ /0 /0 RXBH-2A2J 18.0/2.0 1/ SINGLE 86./ /11 12/10 6.0/8.0 1/ MULTIPLE CKT /..6 2/8 /0 RXBH-2A2J 6.0/8.0 1/ MULTIPLE CKT / /2 0/ 6.0/8.0 1/ MULTPLE CKT 28.8/ /2 0/ RXBH-172A07C./7.2 /60-2. SINGLE 1.0/ /28 2/0 RXBH-172A10C 7.2/9.6 / SINGLE 20.0/ / / RXBH-172A1C 9./12. / SINGLE 26.1/ / 0/ RXBH-172A1C 10.8/1. / SINGLE 0.0/.6.6 /9 /0 RXBH-172A18C 12.8/17.0 / SINGLE./ /7 60/60 RXBH-2A20C / SINGLE 0.0/ /6 60/70 1

15 Electrical Data Electrical Data With Electric Heat (Cont.) Installation of the U.L. Listed original equipment manufacturer provided heater kits listed in the following table is recommended for all auxiliary heating requirements. Air Handler Model AH10X /260 Model No. kw (208/20V) (80V) PH/HZ No. Elements kw Per Type Supply Single Multiple Amps. Ampacity Minimum Ampacity Maximum Protector 7.2/9.6 / MULTIPLE CKT / / / RXBH-2A20C 7.2/9.6 / MULTIPLE CKT / /29 2/0 RXBH-2A2C 18.0/2.0 / SINGLE 0.0/ /78 70/80 RXBH-2A2C 9.0/12.0 / MULTIPLE CKT 1 2.0/ /2 0/ 9.0/12.0 / MULTIPLE CKT 2 2.0/ /7 /0 RXBH-172?0J 2.2/.0 1/ SINGLE 10.8/ /22 20/2 RXBH-172?0J.6/.8 1/ SINGLE 17./ /1 0/ RXBH-172?07J./7.2 1/ SINGLE 26.0/ / 0/ RXBH-172?10J 7.2/9.6 1/ SINGLE.6/ /6 0/60 RXBH-172A1J 9./12. 1/ SINGLE.1/ /71 60/70.1/.2 1/ MULTIPLE CKT 1 1.0/ /28 2/0 RXBH-172A1J 6./8. 1/ MULTIPLE CKT 2 0.1/ / 0/ RXBH-172A1J 10.8/1. 1/ SINGLE 1.9/ /81 80/90.6/.8 1/ MULTIPLE CKT 1 17./ /1 0/ RXBH-172A1J 7.2/9.6 1/ MULTIPLE CKT 2.6/ /0 /0 RXBH-172A18J 12.8/17 1/ SINGLE 61.6/ /9 90/100./.7 1/ MULTIPLE CKT 1 20./ /6 0/ RXBH-172A18J 8.7/11. 1/ MULTIPLE CKT 2 1.1/ /9 60/60 RXBH-2A20J 1./19.2 1/ SINGLE 69.2/80.6 9/ / /9.6 1/ MULTIPLE CKT 1.6/ /6 0/60 RXBH-2A20J 7.2/9.6 1/ MULTIPLE CKT 2.6/ /0 /0 RXBH-2A2J 18.0/2.0 1/ SINGLE 86./ /11 12/10 6.0/8.0 1/ MULTIPLE CKT /..6 2/8 /0 RXBH-2A2J 6.0/8.0 1/ MULTIPLE CKT / /2 0/ 6.0/8.0 1/ MULTPLE CKT 28.8/ /2 0/ RXBH-2A0J (-ton only) 21.6/28.8 1/ SINGLE 10.8/ /16 10/17 7.2/9.6 1/ MULTIPLE CKT 1.6/ /6 0/60 RXBH-2A0J (-ton only) 7.2/9.6 1/ MULTIPLE CKT 2.6/ /0 /0 7.2/9.6 1/ MULTPLE CKT.6/ /0 /0 RXBH-172A07C./7.2 /60-2. SINGLE 1.0/ /28 2/0 RXBH-172A10C 7.2/9.6 / SINGLE 20.0/ / / RXBH-172A1C 9./12. / SINGLE 26.1/ / 0/ RXBH-172A1C 10.8/1. / SINGLE 0.0/.6.6 /9 /0 RXBH-172A18C 12.8/17.0 / SINGLE./ /7 60/60 RXBH-2A20C / SINGLE 0.0/ /6 60/70 7.2/9.6 / MULTIPLE CKT / / / RXBH-2A20C 7.2/9.6 / MULTIPLE CKT / /29 2/0 RXBH-2A2C 18.0/2.0 / SINGLE 0.0/ /78 70/80 9.0/12.0 / MULTIPLE CKT 1 2.0/ /2 0/ RXBH-2A2C 9.0/12.0 / MULTIPLE CKT 2 2.0/ /7 /0 RXBH-2A0C (-ton only) 21.6/28.8 / SINGLE 60.0/ /9 90/100 RXBH-2A0C (-ton only) 10.8/1. / MULTIPLE CKT 1 0.0/.7.6 /0 /0 10.8/1. / MULTIPLE CKT 2 0.0/ / 0/ Supply circuit protective devices may be fuses or HACR type circuit breakers. Largest motor load is included in single circuit and multiple circuit 1. If non-standard fuse size is specified, use next size larger standard fuse size. J Voltage (20V) single phase air handler is designed to be used with single or three phase 20 volt electric heaters. In the case of connecting -phase power to the air handler terminal block without the heater, bring only two leads to the terminal block cap, insulate and fully secure the third lead. 1

16 Electrical Wiring Electrical Wiring Power Wiring Field wiring must comply with the National Electrical Code (C.E.C. in Canada) and any applicable local ordinance. Supply wiring must be 7 C minimum copper conductors only. See electrical data for product Ampacity rating and Protector requirement. Accessories Combustible Floor Base RXHB- Model Cabinet Size Jumper Bar Kit Ckt. to 1 Ckt. RXBJ-A1 is used to convert single phase multiple three circuit units to a single supply circuit. Kit includes cover and screw for line side terminals. Jumper Bar Kit 2 Ckt. to 1 Ckt. RXBJ-A21 is used to convert single phase multiple two circuit units to a single supply circuit. Kit includes cover and screw for line side terminals. Note: No jumper bar kit is available to convert three phase multiple two circuit units to a single supply circuit. Auxiliary Horizontal Overflow Pan Accessory RXBM- Nominal Cooling Capacity-Tons External Filter Rack RXHF-B17, B21, B2 Model Cabinet Size *Accommodates 1" filter Combustible Floor Base Model Number RXHB-17 RXHB-21 RXHB-2 Auxiliary Horizontal Overflow Pan Accessory Model Number 1 1 /2 - RXBM-AC8 1 /2 - RXBM-AC61 Filter Size In. [mm] x 20 [06 x 08] x 20 [08 x 08] 2 2 x 20 [6 x 08] Part Number* RXHF-B17 RXHF-B21 RXHF-B2 A B Grounding This product must be sufficiently grounded in accordance with National Electrical Code (C.E.C. in Canada) and any applicable local ordinance. A grounding lug is provided. Auxiliary Electric Kits RXBH- Kits include circuit breakers which meet UL and cul requirements for service disconnect. See the Electric Heat Electrical Data in this specification sheet for specific Kit Model numbers. External Filter Base RXHF- Model Cabinet Size *Accommodates 1" or 2" filter Filter Size In. [mm] x 20 [08 x 08] Part Number* RXHF x 20 [6 x 08] RXHF Horizontal Adapter Kit RXHH- This horizontal adapter kit is used to convert Upflow/Downflow only models to horizontal flow. See the following table to order proper horizontal adapter kit. Coil Model External Filter Base RXHF- Model Cabinet Size *Accommodates 1" or 2" filter Horizontal Adapter Kit Model Number (Single Qty.) Filter Size In. [mm] x 20 [06 x 08] x 20 [08 x 08] Part Number* RXHF-17 RXHF x 20 [6 x 08] RXHF A A B Horizontal Adapter Kit Model Number (10-Pack Qty.) RXHH-A01 RXHH-A02 RXHH-A01 x 10 RXHH-A02 x /621 RXHH-A0 RXHH-A0 x /821/82 RXHH-A0 RXHH-A0 x RXHH-A0 RXHH-A0 x 10 B RXHF- 1 1 /2 [8 mm] RXHF-B B A 16

17 Limited Warranty GENERAL TERMS OF LIMITED WARRANTY* Sure Comfort will furnish a replacement for any part of this product which fails in normal use and service within the applicable periods stated, in accordance with the terms of the limited warranty. Parts...Five () Years *For complete details of the Limited and Conditional Warranties, including applicable terms and conditions, contact your local contractor or the Manufacturer for a copy of the product warranty certificate. 17

18 Notes 18

19 Notes 19

20 Before proceeding with installation, refer to installation instructions packaged with each model, as well as complying with all Federal, State, Provincial, and Local codes, regulations, and practices. Sure Comfort P.O. Box 17010, Fort Smith, AR In keeping with its policy of continuous progress and product improvement, Sure Comfort reserves the right to make changes without notice. PRINTED IN U.S.A. 8-1 QG FORM NO. HSC- Supersedes Form No PSC 789