MERIT Series R-410A - Upflow / Horizontal - Variable Speed

PRODUCT SPECIFICATIONS AIR HANDLERS CBX5UHV (-01) MERIT Series R-10A - Upflow / Horizontal - Variable Bulletin No. 10611 March 015 Supersedes November 01 MODEL NUMBER IDENTIFICATION CB X 5 UH V - 00-0 - 01 Nominal Capacity - 1.5 to 5 Tons Optional Electric Heat -.5 to 0 kw Unit Type CB = Air Handler Minor Revision Number Refrigerant Type X = R-10A Voltage 0 = 08/0V-1 phase-60hz Series Configuration UH = Upflow/Horizontal Blower Motor V = Variable Nominal Cooling Capacity 018 = 1.5 tons 0 = tons 00 =.5 tons 06 = tons 0 =.5 tons 08 = tons 060 = 5 tons

FEATURES CONTENTS Blower Data... 6 Dimensions - Accessories... 0 Dimensions - Unit... 18 Electrical Data... 5 Electric Heat Data... 1 Features... Installation Clearances With Electric Heat... 0 Model Number Identification... 1 Optional Accessories... 5 Replacement Circuit Breakers... 17 Specifications... 5 WARRANTY All covered components - Limited five years in residential applications, one year in non-residential applications. Refer to Lennox Limited Warranty Certificate included with each unit for additional details. APPROVALS Tested with matching air conditioners and heat pump units in the Lennox Research Laboratory environmental test room in accordance with AHRI Standard 10/0. Optional electric heaters are rated in accordance with US Department of Energy (DOE) test procedures and Federal Trade Commission (FTC) labeling regulations. Air handlers are ETL Listed to US and Canadian safety standards and components within are bonded for grounding to meet safety standards for servicing required by CEC and NEC. ISO 9001 Registered Manufacturing Quality System. APPLICATIONS 1.5 to 5 ton nominal sizes. Upflow or horizontal applications. Compact cabinet height for upflow, horizontal-left or horizontal-right applications. NOTE - Not available for downflow applications. Utility room, alcove, closet, crawl space, basement or attic installation. CBX5UHV models are applicable to R-10A expansion valve systems in cooling applications and check and expansion valve systems in heat pump applications. See bulletins in section Air Conditioners for cooling capacities. See bulletins in section Heat Pump Outdoor Units for cooling and heating capacities. Optional field installed electric heaters available in several sizes for additive heating capacity. Zoning Applications Units can be used with certain zoning systems. B C D B F A Zone control panel MUST be able to interface and communicate with the variable speed motor in the unit. Lennox Harmony III Zoning System has this capability. REFRIGERANT SYSTEM Refrigerant Line Connections Suction (vapor) and liquid lines have sweat connections that extended outside of the cabinet for ease of connection. See dimension drawing for locations. Check and Expansion Valve Furnished CBX5UHV models have non-chlorine, ozone friendly, R-10A valve. Wide range valve. Chatleff style fitting. E C H I D G Factory installed on all models internal to cabinet. Copper Tube/Enhanced Fin Evaporator Coil Assembled in A configuration. Provides extra large surface and contact area, excellent heat transfer and low air resistance for maximum efficiency. Precise circuiting for uniform refrigerant distribution. Precisely spaced ripple-edged aluminum fins fitted to durable seamless copper tubes. Fins are strengthened to resist bending and are equipped with collars that grip tubing for maximum contact area. CBX5UHV - 1.5 to 5 ton Air Handlers / Page

FEATURES E REFRIGERANT SYSTEM (continued) Lanced fins provide maximum exposure of fin surface to air stream. Long life copper tubing is easy to service. Rifled tubing provides superior heat transfer. Flared shoulder tubing joints and silver soldering provide tight, leakproof joints. Coil thoroughly factory tested under high pressure to insure leakproof construction. BLOWER Programmable Multi- Blower Motor High efficiency multi-speed blower motor maintains specified air volumes up to a maximum of 0.8 in. w.g. total external static. Programmable multi-speed operation is achieved by the use of an ECM (Electronically Commutated Motor) motor. Allows cooling ramping profiles (field selectable) for enhanced dehumidification. Motor accelerates and decelerates gradually, reducing start-up and shut-down sound. Leadless blower motor features simple plug-in connections. Motor is controlled by BDC Electronic Blower Control that allows blower to operate at two of eight air volumes or speeds available. Blower speeds may be field selected on blower control depending on size of air handler and air volume desired. See Blower Data tables. Blower Assembly Each blower is statically and dynamically balanced as an assembly before installation in the unit. Blower motor is resiliently mounted to blower assembly. Blower slides out of cabinet for servicing. CONTROLS BDC Electronic Blower Control Controls evaporator humidity by controlling blower and compressor staging on two-stage outdoor units. Two Stages - HEAT and COOL (with four different air volume selections for each) are made by simple jumper pins on board. ADJUST jumper pin allows approximately 10% higher, normal or 10% lower motor speed selection within HEAT and COOL speeds selected for fine tuning air volume. DELAY jumper pin allows selection of four different blower motor de-humidification profiles during cooling mode: F G Option - Motor runs at 100% until demand is met. Once demand is satisfied, motor runs at 100% for 60 seconds then ramps down to stop. Option - Motor runs at 8% of capacity for approximately 7-1/ minutes, then 100% capacity (if needed) until demand is satisfied. Once demand is met, motor ramps down to stop. Option - Motor runs at 50% capacity for 0 seconds, then 8% capacity for approximately 7-1/ minutes. If demand is not satisfied, motor runs at 100% capacity until demand is met. Once demand is met, motor runs at 50% capacity for 0 seconds, then ramps down to stop. Control has two diagnostic indicator lights, CFM and RUN, to assist in servicing. Accessory relay terminals (V) provide connections for power humidifiers or powered air cleaners. Control is factory installed in the unit control box. Transformer and Blower Relay for Electric Heat volt transformer and blower relay for electric heat furnished as standard. Factory installed in the unit control box. Optional Accessories Thermostat See Thermostat bulletins in Controls section and Lennox Price Book for a complete list of thermostats. CABINET Constructed of heavy gauge galvanized steel. Powder paint finish. Completely insulated with foil faced fiberglass insulation. Removable panels provide complete service access. Filter access door for easy filter replacement. Thumbscrews secure filter door. Electrical inlets provided in sides and top of cabinet. See dimension drawing for locations. Knock-outs in cabinet for drain connections for upflow (left and right) and horizontal applications. See dimension drawing. Low Leakage Cabinet All models have less than % air leakage and meet ANSI/ASHRAE Standard 19-010 Method of Test for Determining the Air Tightness of HVAC Equipment. Upflow/Horizontal Capability Shipped for upflow and horizontal left-hand discharge. May be field converted to horizontal right-hand air discharge by repositioning horizontal drain pan. NOTE - Not available for downflow applications. Option 1 - Motor runs at 100% of capacity until demand met. Once demand is met, motor ramps down to stop. CBX5UHV - 1.5 to 5 ton Air Handlers / Page

H FEATURES CABINET (continued) Anti-Microbial Dual Position Drain Pans Anti-Microbial additive resists growth of mold and mildew on drain pan which improves indoor air quality and reduces drain line blockage. Drain pans designed for upflow or horizontal applications. Deep, corrosion resistant high temperature engineered polymer drain pans have dual pipe drains. See dimension drawing. Optional Accessories Horizontal Support Frame Kit Provides support of unit in horizontal applications. Consists of () 1 x 1-1/ x -5/8 in. and () 1 x x 5-7/8 in. painted heavy gauge cold rolled steel support channels with assembly and suspending holes. Bolts and nuts furnished for field assembly. Suspending rods must be field provided. Side Return Unit Stand (Upflow Only) Raises unit 16 in. above floor for side return air duct connection. Eliminates need for wooden platform construction. All aluminum construction. Two adjustable frames fit all sizes. See Dimension Drawing. Wall Hanging Bracket Kit (Upflow Only) Allows unit to be hung on wall at any height. Consists of heavy gauge steel support brackets (one for air handler unit, one for wall mount). Screws furnished for fastening one bracket to unit. Bolts for fastening one bracket to wall are field provided. FILTER Disposable 1 inch filter is furnished. Filter rack furnished in cabinet for easy filter installation. See Specifications tables for filter sizes. I ELECTRICAL Optional Accessories Electric Heat Field install internal to unit cabinet. Available in several kw sizes. See Electric Heat tables. Helix wound nichrome heating elements exposed directly in air stream resulting in instant heat transfer, low element temperatures and long service life. Each element equipped with accurately located limit control with fixed temperature off setting and automatic reset. Thermal sequencer relay brings elements on and off line, in sequence and equal increments, with time delay between each. Initiates and terminates blower operation. Heating control relay(s) furnished as standard. Factory assembled with controls installed and wired. Electric heat control wiring plugs into mating connector on air handler unit. Circuit Breaker Models ECB5-5CB, ECB5-7.5CB, ECB5-10CB, ECB5-1.5, ECB5-15CB, ECB5-0CB heaters are equipped with circuit breakers for overload and short circuit protection. Factory wired and mounted on electric heat unit. Current sensitive and temperature actuated. Manual reset. Flexible plastic circuit breaker cover protects circuit breaker in areas with high humidity or unconditioned areas to prevent nuisance tripping. Circuit breakers qualify as disconnect means at unit in many areas, eliminate the need for field provided disconnect. Consult local electrical code in your area. Single-point Power Source Control Box Control Box may be used with optional electric heat when single power supply is connected to multi-circuit electric heat. Field installs external to the unit cabinet on either side or top. Constructed of heavy gauge steel, baked enamel finish, prepunched mounting holes, electrical inlet knockouts, and terminal strip. Removable cover provides easy access. Dimensions (H x W x D) - 7 x 7 x in. CBX5UHV - 1.5 to 5 ton Air Handlers / Page

SPECIFICATIONS General Data Model Number CBX5UHV-018 CBX5UHV-0 CBX5UHV-00 CBX5UHV-06 Nominal tonnage 1.5.5 Connections Suction/Vapor line (o.d.) - in. sweat / / 7/8 7/8 Indoor Coil Liquid line (o.d.) - in. sweat /8 /8 /8 /8 Condensate - in. fpt () / () / () / () / Net face area - ft..11.56.00.89 Tube outside diameter - in. /8 /8 /8 /8 Number of rows Fins per inch 1 1 1 1 Blower Wheel nominal diameter x width - in. 9 x 6 9 x 6 10 x 8 10 x 8 Blower motor output - hp 1/ 1/ 1/ 1/ 1 Filters Size of filter - in. 1 x 0 x 1 15 x 0 x 1 15 x 0 x 1 18 x 0 x 1 ELECTRICAL DATA Voltage - 1 phase (60 hz) 08/0V 08/0V 08/0V 08/0V Maximum overcurrent protection (unit only) 15 15 15 15 Minimum circuit ampacity (unit only).9.9.9.9 Blower Motor Full Load Amps.9.9.9.9 Shipping Data -1 package - lbs. 105 1 16 161 SPECIFICATIONS General Data Model Number CBX5UHV-0 CBX5UHV-08 CBX5UHV-060 Nominal tonnage.5 5 Connections Suction/Vapor line (o.d.) - in. sweat 7/8 7/8 7/8 Indoor Coil Liquid line (o.d.) - in. sweat /8 /8 /8 Condensate - in. fpt () / () / () / Net face area - ft. 5.8 7.00 7.00 Tube outside diameter - in. /8 /8 /8 Number of rows Fins per inch 1 1 1 Blower Wheel nominal diameter x width - in. 1 x 8 1 x 9 1 x 9 Blower motor output - hp / 1 1 1 Filters Size of filter - in. 18 x x 1 18 x x 1 18 x x 1 ELECTRICAL DATA Voltage - 1 phase (60 hz) 08/0V 08/0V 08/0V Maximum overcurrent protection (unit only) 15 15 15 Minimum circuit ampacity (unit only) 6.5 8.6 8.6 Blower Motor Full Load Amps 5. 6.9 6.9 Shipping Data -1 package - lbs. 16 186 186 1 Disposable filter. HACR type circuit breaker or fuse. Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167 F. OPTIONAL ACCESSORIES - ORDER SEPARATELY Model -018-0 -00-06 -0-08 -060 Horizontal Support Frame Kit 56J18 56J18 56J18 56J18 Side Return Unit Stand (Upflow Only) 5K1 5K 5K 5K Single-Point Power Source Control Box (for Electric Heat) 1H9 1H9 1H9 1H9 Wall Hanging Bracket Kit (Upflow Only) 5K0 5K0 5K0 5K0 NOTE - Not available for downflow applications. CBX5UHV - 1.5 to 5 ton Air Handlers / Page 5

BLOWER DATA CBX5UHV-018 BLOWER PERFORMANCE 0 through 0.80 in. w.g. External Static Pressure Range Positions ADJUST HEAT 1 1 1 Setting cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm + 70 670 890 1080 50 70 60 760 70 675 890 1090 NORM 0 615 810 1000 50 50 560 700 5 610 815 100 00 560 70 910 50 0 50 650 00 575 75 915 NOTES - The effect of static pressure, filter and electric heater resistance is included in the air volumes listed. First stage cooling air volume is 70% of COOL speed setting. Continuous blower speed is approximately 50% of COOL speed setting. Lennox Harmony III Zoning System applications - minimum blower speed is 50 cfm. CBX5UHV-018 BLOWER MOTOR WATTS AT + (Plus) SETTING ( Adjust at + Setting) Positions HEAT 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 9 61 8 98 118 18 10 151 Tap 109 16 16 15 176 19 1 0 Tap 9 61 90 11 1 7 66 Tap 18 9 71 8 81 86 81 77 Tap 1 5 0 55 69 77 9 109 16 Tap 50 65 7 91 115 18 18 157 Tap 9 107 18 1 155 176 189 6 Tap 155 171 19 06 7 6 66 81 Tap 1 8 67 78 96 11 19 17 19 Tap 105 15 10 15 17 19 11 Tap 0 65 86 01 9 68 Tap 1 5 7 89 91 89 80 85 AT NORM SETTING ( Adjust at NORM Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 60 69 9 10 117 1 19 HEAT Tap 86 10 118 19 15 165 0 18 Tap 170 187 08 7 70 8 0 Tap 11 57 77 07 7 5 7 Tap 1 5 0 56 68 77 9 110 15 Tap 0 55 68 81 107 118 1 1 Tap 71 89 101 10 10 169 180 195 Tap 1 1 159 175 191 1 0 Tap 1 6 5 67 86 100 11 1 10 Tap 8 97 117 1 19 165 19 1 Tap 169 188 1 7 50 67 87 08 Tap 11 67 8 09 0 7 65 AT (Minus) SETTING ( Adjust at Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 60 8 9 101 117 15 HEAT Tap 69 85 98 11 10 157 17 188 Tap 10 19 16 187 01 0 5 Tap 1 5 78 89 19 6 5 8 Tap 1 5 0 59 6 7 90 11 10 Tap 0 5 6 8 9 99 1 1 Tap 60 7 86 96 116 16 156 170 Tap 99 10 18 1 166 188 01 0 Tap 1 1 58 77 9 98 109 18 Tap 66 8 99 111 11 157 175 180 Tap 18 150 166 186 00 0 55 Tap 55 86 0 0 7 86 CBX5UHV - 1.5 to 5 ton Air Handlers / Page 6

BLOWER DATA CBX5UHV-0 BLOWER PERFORMANCE 0 through 0.80 in. w.g. External Static Pressure Range Positions ADJUST HEAT 1 1 1 Setting cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm + 70 690 900 110 50 70 65 775 80 670 890 115 NORM 0 60 810 100 0 50 580 70 0 605 80 100 10 550 70 900 00 05 505 650 90 55 70 90 NOTES - The effect of static pressure, filter and electric heater resistance is included in the air volumes listed. First stage cooling air volume is 70% of COOL speed setting. Continuous blower speed is approximately 50% of COOL speed setting. Lennox Harmony III Zoning System applications - minimum blower speed is 50 cfm. CBX5UHV-0 BLOWER MOTOR WATTS AT + (Plus) SETTING ( Adjust at + Setting) Positions HEAT 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 9 6 79 9 109 15 11 157 Tap 66 88 109 11 16 170 188 17 Tap 15 17 188 17 9 66 89 1 Tap 71 99 6 77 05 1 56 Tap 1 15 7 5 7 9 101 117 Tap 7 5 6 87 11 10 1 159 Tap 66 8 101 1 18 158 185 17 Tap 105 1 18 170 187 11 6 Tap 1 5 6 75 90 10 118 17 15 Tap 6 86 111 19 18 168 198 8 Tap 16 17 195 17 6 91 16 Tap 7 89 5 6 67 07 66 AT NORM SETTING ( Adjust at NORM Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 0 59 76 96 11 1 15 HEAT Tap 5 75 88 111 11 151 181 09 Tap 111 15 157 177 198 50 6 Tap 0 1 59 78 08 56 81 Tap 1 1 0 0 5 6 8 110 119 Tap 5 6 60 81 99 11 16 150 Tap 5 59 85 96 115 1 170 189 Tap 75 97 1 1 161 18 06 6 Tap 1 1 60 77 9 111 10 19 Tap 50 7 9 108 19 151 17 06 Tap 115 1 159 180 06 8 9 67 Tap 10 67 8 09 5 6 8 AT (Minus) SETTING ( Adjust at Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 0 5 6 8 106 117 10 HEAT Tap 57 80 98 11 19 17 18 Tap 87 108 1 19 170 181 07 8 Tap 15 180 0 9 75 01 0 Tap 1 8 15 6 1 59 7 98 11 Tap 59 75 91 10 1 10 Tap 9 8 69 89 119 18 1 178 Tap 58 77 97 118 16 155 180 16 Tap 1 0 5 61 8 96 116 18 Tap 1 58 80 99 11 16 170 189 Tap 81 10 15 150 170 188 09 Tap 150 176 01 5 7 91 0 CBX5UHV - 1.5 to 5 ton Air Handlers / Page 7

BLOWER DATA CBX5UHV-00 BLOWER PERFORMANCE 0 through 0.80 in. w.g. External Static Pressure Range Positions ADJUST HEAT 1 1 1 Setting cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm + 650 900 1100 10 0 600 70 90 650 875 1100 10 NORM 590 795 1000 100 90 550 680 80 580 800 1000 100 50 70 895 1075 0 75 60 750 500 700 900 1090 NOTES - The effect of static pressure, filter and electric heater resistance is included in the air volumes listed. First stage cooling air volume is 70% of COOL speed setting. Continuous blower speed is approximately 50% of COOL speed setting. Lennox Harmony III Zoning System applications - minimum blower speed is 50 cfm. CBX5UHV-00 BLOWER MOTOR WATTS AT + (Plus) SETTING ( Adjust at + Setting) Positions HEAT 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 5 75 97 116 19 156 180 197 Tap 11 17 16 189 10 58 85 Tap 198 8 61 75 1 8 7 09 Tap 1 58 87 17 56 9 5 51 Tap 1 6 7 87 107 19 1 Tap 9 65 105 110 16 1 155 169 Tap 7 101 16 1 160 19 1 Tap 117 10 170 197 19 5 68 97 Tap 1 75 97 119 19 15 17 189 Tap 11 18 161 187 06 0 55 91 Tap 197 16 1 8 09 71 97 Tap 50 86 1 58 76 519 510 AT NORM SETTING ( Adjust at NORM Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 58 85 109 1 11 158 17 HEAT Tap 86 109 11 161 175 198 8 58 Tap 150 180 10 0 67 9 1 1 Tap 5 7 9 75 98 67 Tap 1 18 0 6 86 10 116 19 Tap 9 56 71 90 110 15 19 157 Tap 55 8 106 1 17 17 188 06 Tap 95 1 1 17 191 1 6 70 Tap 1 7 55 79 98 10 11 155 171 Tap 85 107 1 155 176 198 8 51 Tap 151 170 01 9 55 79 11 0 Tap 9 76 0 8 71 05 65 AT (Minus) SETTING ( Adjust at Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 7 5 70 9 110 1 15 157 HEAT Tap 68 9 111 19 15 18 199 15 Tap 11 19 168 179 05 8 61 99 Tap 185 07 1 7 90 1 7 8 Tap 1 15 6 0 59 78 99 109 17 Tap 6 8 9 110 10 150 Tap 5 68 91 110 1 15 165 178 Tap 71 10 11 1 16 190 0 7 Tap 1 6 9 6 8 108 15 1 19 Tap 60 88 116 11 151 18 197 08 Tap 115 15 16 19 1 0 68 87 Tap 186 11 6 68 0 8 6 80 CBX5UHV - 1.5 to 5 ton Air Handlers / Page 8

BLOWER DATA CBX5UHV-06 BLOWER PERFORMANCE 0 through 0.80 in. w.g. External Static Pressure Range Positions ADJUST HEAT 1 1 1 Setting cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm + 880 1115 15 15 615 770 90 1090 880 1110 10 15 NORM 800 1010 115 15 555 695 85 990 795 1005 115 10 715 905 1095 175 505 65 755 885 715 905 1090 180 NOTES - The effect of static pressure, filter and electric heater resistance is included in the air volumes listed. First stage cooling air volume is 70% of COOL speed setting. Continuous blower speed is approximately 50% of COOL speed setting. Lennox Harmony III Zoning System applications - minimum blower speed is 50 cfm. CBX5UHV-06 BLOWER MOTOR WATTS AT + (Plus) SETTING ( Adjust at + Setting) Positions HEAT 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 111 10 151 175 198 18 1 6 Tap 190 15 7 97 7 5 79 Tap 10 9 7 09 7 505 51 Tap 91 50 51 511 515 518 515 51 Tap 1 55 71 88 107 1 10 156 171 Tap 8 101 10 1 16 18 0 0 Tap 1 15 167 19 15 7 59 8 Tap 180 0 1 58 8 10 8 6 Tap 1 110 10 151 176 198 18 0 6 Tap 190 1 0 69 97 51 7 Tap 11 9 7 07 0 7 50 51 Tap 87 51 51 51 516 519 517 51 AT NORM SETTING ( Adjust at NORM Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 90 108 17 151 170 19 11 9 HEAT Tap 151 171 195 7 71 9 18 Tap 6 6 9 7 56 8 15 5 Tap 70 00 6 7 509 518 515 51 Tap 1 6 61 78 95 11 16 10 155 Tap 71 85 10 1 1 161 178 196 Tap 101 119 10 16 185 06 7 7 Tap 11 16 187 1 9 58 80 09 Tap 1 91 108 18 151 171 191 1 0 Tap 18 171 196 7 7 97 18 Tap 1 65 95 7 56 8 1 Tap 69 96 7 508 519 516 51 AT (Minus) SETTING ( Adjust at Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 7 89 108 18 18 165 18 0 HEAT Tap 116 16 159 18 07 8 51 7 Tap 18 06 61 88 15 0 66 Tap 7 98 66 97 7 57 8 Tap 1 0 5 69 86 101 115 18 1 Tap 57 7 90 109 16 1 159 17 Tap 81 98 117 19 158 177 196 15 Tap 111 11 15 177 00 0 6 Tap 1 7 89 109 19 19 167 18 0 Tap 118 17 159 18 08 8 50 7 Tap 181 0 0 59 8 11 9 6 Tap 7 98 66 97 8 58 90 CBX5UHV - 1.5 to 5 ton Air Handlers / Page 9

BLOWER DATA CBX5UHV-0 BLOWER PERFORMANCE 0 through 0.80 in. w.g. External Static Pressure Range Positions ADJUST HEAT 1 1 1 Setting cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm + 1115 15 1560 1800 800 960 110 165 110 160 1580 1800 NORM 105 115 115 160 70 870 100 1150 100 10 150 160 95 1110 180 160 650 790 915 1050 950 110 190 170 NOTES - The effect of static pressure, filter and electric heater resistance is included in the air volumes listed. First stage cooling air volume is 70% of COOL speed setting. Continuous blower speed is approximately 50% of COOL speed setting. Lennox Harmony III Zoning System applications - minimum blower speed is 50 cfm. CBX5UHV-0 BLOWER MOTOR WATTS AT + (Plus) SETTING ( Adjust at + Setting) Positions HEAT 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 107 15 15 179 197 1 51 77 Tap 15 185 16 8 6 00 5 5 Tap 70 1 7 06 1 7 Tap 79 1 9 9 56 579 611 Tap 1 50 66 8 100 17 16 16 185 Tap 7 9 11 16 155 175 07 1 Tap 98 11 18 17 196 1 0 68 Tap 1 161 190 17 68 95 5 Tap 1 108 1 16 181 0 7 5 80 Tap 159 181 19 7 0 6 6 Tap 67 0 67 10 0 77 Tap 5 9 1 6 50 5 586 6 AT NORM SETTING ( Adjust at NORM Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 86 107 1 19 171 196 0 6 HEAT Tap 119 16 17 01 19 55 76 07 Tap 181 08 0 71 98 6 69 9 Tap 71 05 9 76 0 0 7 516 Tap 1 56 76 90 11 1 150 17 Tap 56 77 96 110 16 161 186 09 Tap 8 110 11 151 175 19 Tap 106 1 155 188 05 61 79 Tap 1 85 106 1 15 177 197 19 5 Tap 18 151 180 0 61 79 08 Tap 18 11 7 7 07 1 65 97 Tap 6 97 7 7 0 9 8 50 AT (Minus) SETTING ( Adjust at Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 7 88 109 1 15 175 199 17 HEAT Tap 98 15 18 176 198 0 9 68 Tap 18 167 195 18 7 75 06 Tap 198 6 97 8 6 76 Tap 1 9 5 6 88 10 16 1 156 Tap 9 66 8 10 1 17 161 189 Tap 68 91 11 15 16 17 195 17 Tap 86 111 11 15 177 197 8 Tap 1 6 87 108 1 155 171 195 1 Tap 105 17 15 177 01 5 50 70 Tap 18 166 195 0 5 75 06 6 Tap 197 9 6 91 16 6 89 19 CBX5UHV - 1.5 to 5 ton Air Handlers / Page 10

BLOWER DATA CBX5UHV-08 BLOWER PERFORMANCE 0 through 0.80 in. w.g. External Static Pressure Range Positions ADJUST HEAT 1 1 1 Setting cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm + 150 1670 1880 0 1050 100 10 1650 10 1670 1950 0 NORM 10 150 170 100 950 1100 10 150 15 150 170 150 110 190 1570 1915 850 1000 1110 175 100 180 1600 1950 NOTES - The effect of static pressure, filter and electric heater resistance is included in the air volumes listed. First stage cooling air volume is 70% of COOL speed setting. Continuous blower speed is approximately 50% of COOL speed setting. Lennox Harmony III Zoning System applications - minimum blower speed is 50 cfm. CBX5UHV-08 BLOWER MOTOR WATTS AT + (Plus) SETTING ( Adjust at + Setting) Positions HEAT 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 196 69 95 6 86 9 Tap 8 17 7 0 0 86 51 55 Tap 09 8 58 58 619 661 71 Tap 8 851 891 96 1,0 980 1,000 99 Tap 1 91 116 16 166 189 1 67 Tap 110 18 17 05 61 80 09 Tap 160 01 7 5 86 16 8 7 Tap 70 1 58 97 0 76 516 56 Tap 1 00 1 65 98 7 5 8 5 Tap 9 80 1 8 87 519 560 Tap 0 1 89 56 589 69 678 717 Tap 778 806 896 9 1,000 999 981 986 AT NORM SETTING ( Adjust at NORM Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 151 185 15 51 8 16 7 69 HEAT Tap 19 58 00 8 71 07 9 7 Tap 15 60 1 50 89 5 56 607 Tap 57 60 690 7 77 86 856 91 Tap 1 76 99 11 19 165 199 1 Tap 106 1 150 17 199 6 55 79 Tap 15 16 195 55 81 06 0 Tap 7 99 17 5 90 0 58 Tap 1 17 188 50 81 09 0 67 Tap 7 06 7 7 15 1 8 Tap 01 7 99 70 55 550 597 Tap 581 69 678 7 795 8 900 959 AT (Minus) SETTING ( Adjust at Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 115 15 18 09 0 6 8 18 HEAT Tap 170 10 8 69 07 0 6 97 Tap 8 8 1 5 9 16 55 96 Tap 16 69 5 569 609 68 695 71 Tap 1 58 8 101 16 1 168 196 1 Tap 80 110 19 151 178 01 5 58 Tap 99 19 15 180 05 7 58 90 Tap 179 18 8 8 08 9 77 9 Tap 1 115 15 178 0 58 85 06 Tap 175 1 71 10 0 70 98 Tap 85 8 7 08 9 67 501 Tap 1 61 50 56 619 665 700 78 CBX5UHV - 1.5 to 5 ton Air Handlers / Page 11

BLOWER DATA CBX5UHV-060 BLOWER PERFORMANCE 0 through 0.80 in. w.g. External Static Pressure Range Positions ADJUST HEAT 1 1 1 Setting cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm + 1700 190 10 75 15 110 150 1690 170 190 10 70 NORM 1570 1760 195 100 110 160 100 150 1580 1765 1970 100 10 1595 1760 190 1015 1160 175 190 10 165 1780 1890 NOTES - The effect of static pressure, filter and electric heater resistance is included in the air volumes listed. First stage cooling air volume is 70% of COOL speed setting. Continuous blower speed is approximately 50% of COOL speed setting. Lennox Harmony III Zoning System applications - minimum blower speed is 50 cfm. CBX5UHV-060 BLOWER MOTOR WATTS AT + (Plus) SETTING ( Adjust at + Setting) Positions HEAT 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 09 5 91 1 6 507 55 56 Tap 56 50 556 600 6 68 718 7 Tap 61 67 7 78 819 87 918 99 Tap 81 859 917 97 988 981 97 99 Tap 1 15 151 187 16 7 76 1 59 Tap 170 10 77 07 71 10 Tap 71 07 85 08 0 70 Tap 01 8 86 60 89 5 561 Tap 1 1 6 09 9 8 509 55 59 Tap 61 510 55 60 6 677 71 750 Tap 607 660 71 765 80 857 891 97 Tap 778 8 898 9 1,005 968 99 950 AT NORM SETTING ( Adjust at NORM Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 7 15 5 85 17 51 90 HEAT Tap 1 87 1 7 515 55 571 617 Tap 77 508 561 611 69 69 717 765 Tap 59 61 70 751 81 8 875 90 Tap 1 98 17 150 17 178 85 16 Tap 1 16 186 8 7 87 0 7 Tap 175 07 6 80 10 8 7 7 Tap 70 06 68 16 67 67 Tap 1 6 89 0 6 00 8 7 51 Tap 58 99 67 50 559 601 6 Tap 90 56 58 66 671 680 765 806 Tap 568 6 67 7 787 88 878 95 AT (Minus) SETTING ( Adjust at Setting) Positions 0.1 0. 0. 0. 0.5 0.6 0.7 0.8 Tap 1 177 15 9 89 1 9 89 11 HEAT Tap 60 9 0 69 09 8 86 518 Tap 9 89 6 76 51 558 587 6 Tap 6 98 58 59 65 658 70 77 Tap 1 6 86 1 157 189 19 50 78 Tap 101 17 159 189 8 78 88 8 Tap 16 165 19 19 59 97 16 7 Tap 171 11 0 78 08 67 0 Tap 1 00 1 59 9 19 65 85 6 Tap 65 00 9 8 1 58 96 51 Tap 57 98 87 57 56 60 67 Tap 9 85 51 57 605 66 686 70 CBX5UHV - 1.5 to 5 ton Air Handlers / Page 1

ELECTRIC HEAT DATA SINGLE PHASE Description.5 kw ECB5-.5 (1R08) Wire Leads 5 kw ECB5-5 (1R5) ECB5-5CB (1R60) 0A Circuit Breaker 7.5 kw ECB5-7.5 (1R61) ECB5-7.5CB (1S08) 5A Circuit Breaker 10 kw ECB5-10 (10Z) ECB5-10CB (10T7) 60A Circuit Breaker SINGLE PHASE Description.5 kw ECB5-.5 (1R08) Wire Leads 5 kw ECB5-5 (1R5) ECB5-5CB (1R60) 0A Circuit Breaker 7.5 kw ECB5-7.5 (1R61) ECB5-7.5CB (1S08) 5A Circuit Breaker 10 kw ECB5-10 (10Z) ECB5-10CB (10T7) 60A Circuit Breaker Input Volt kw 1 Btuh CBX5UHV-018 Blower Motor Full Load Amps Minimum Circuit Ampacity Maximum Overcurrent Protection 08 1.9 6,00.9 16 0 0.1 7,00.9 17 0 0. 7,800.9 17 0 0.5 8,500.9 18 0 08.8 1,800.9 7 0 0. 1,00.9 9 0 0.6 15,700.9 0 0 0 5.0 17,100.9 1 5 08 5.6 19,00.9 9 0 0 6. 1,500.9 1 5 0 6.9,500.9 5 0 7.5 5,600.9 5 08 6.8,000.9 5 5 0 7.6 5,800.9 8 50 0 8. 8,00.9 50 50 0 9.0 0,700.9 5 60 Input Volt kw 1 Btuh NOTE - Circuit 1 Minimum Circuit Ampacity includes the Blower Motor Full Load Amps. 1 Electric heater capacity only - does not include additional blower motor heat capacity. CBX5UHV-0 Blower Motor Full Load Amps Minimum Circuit Ampacity Maximum Overcurrent Protection 08 1.9 6,00.9 16 0 0.1 7,00.9 17 0 0. 7,800.9 17 0 0.5 8,500.9 18 0 08.8 1,800.9 7 0 0. 1,00.9 9 0 0.6 15,700.9 0 0 0 5.0 17,100.9 1 5 08 5.6 19,00.9 9 0 0 6. 1,500.9 1 5 0 6.9,500.9 5 0 7.5 5,600.9 5 08 6.8,000.9 5 5 0 7.6 5,800.9 8 50 0 8. 8,00.9 50 50 0 9.0 0,700.9 5 60 Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167 F. HACR type breaker or fuse. Bold indicates that the circuit breaker on CB circuit breaker models must be replaced with size shown. See table on page 17. CBX5UHV - 1.5 to 5 ton Air Handlers / Page 1

ELECTRIC HEAT DATA SINGLE PHASE Description.5 kw ECB5-.5 (1R08) Wire Leads 5 kw ECB5-5 (1R5) ECB5-5CB (1R60) 0A Circuit Breaker 7.5 kw ECB5-7.5 (1R61) ECB5-7.5CB (1S08) 5A Circuit Breaker 10 kw ECB5-10 (10Z) ECB5-10CB (10T7) 60A Circuit Breaker 1.5 kw ECB5-1.5CB (1S77) (1) 50A and (1) 5A Circuit Breaker 15 kw ECB5-15CB (1S87) (1) 60A and (1) 0A Circuit Breaker Input Blower Motor Full Load Amps CBX5UHV-00 Minimum Circuit Ampacity Maximum Overcurrent Protection Volt kw 1 Btuh Ckt 1 Ckt Ckt 1 Ckt Single Point Power Source Minimum Circuit Ampacity Maximum Overcurrent Protection 08 1.9 6,00.9 16 - - - 0 - - - - - - - - - 0.1 7,00.9 17 - - - 0 - - - - - - - - - 0. 7,800.9 17 - - - 0 - - - - - - - - - 0.5 8,500.9 18 - - - 0 - - - - - - - - - 08.8 1,800.9 7 - - - 0 - - - - - - - - - 0. 1,00.9 9 - - - 0 - - - - - - - - - 0.6 15,700.9 0 - - - 0 - - - - - - - - - 0 5.0 17,100.9 1 - - - 5 - - - - - - - - - 08 5.6 19,00.9 9 - - - 0 - - - - - - - - - 0 6. 1,500.9 1 - - - 5 - - - - - - - - - 0 6.9,500.9 - - - 5 - - - - - - - - - 0 7.5 5,600.9 - - - 5 - - - - - - - - - 08 6.8,000.9 5 - - - 5 - - - - - - - - - 0 7.6 5,800.9 8 - - - 50 - - - - - - - - - 0 8. 8,00.9 50 - - - 50 - - - - - - - - - 0 9.0 0,700.9 5 - - - 60 - - - - - - - - - 08 9.,000.9 5 5 65 70 0 10.5 5,800.9 5 5 5 68 70 0 11.5 9,00.9 6 5 50 5 71 80 0 1.5,600.9 8 6 50 0 7 80 08 11. 8,00.9 5 5 0 50 7 80 0 1.6,000.9 6 8 0 50 76 80 0 1.5 7,000.9 7 50 0 50 80 80 0 15.0 51,00.9 8 5 5 60 8 90 NOTE - Circuit 1 Minimum Circuit Ampacity includes the Blower Motor Full Load Amps. 1 Electric heater capacity only - does not include additional blower motor heat capacity. Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167 F. HACR type breaker or fuse. Bold indicates that the circuit breaker on CB circuit breaker models must be replaced with size shown. See table on page 17. CBX5UHV - 1.5 to 5 ton Air Handlers / Page 1

ELECTRIC HEAT DATA SINGLE PHASE Description Input Blower Motor Full Load Amps CBX5UHV-06 Minimum Circuit Ampacity Maximum Overcurrent Protection Volt kw 1 Btuh Ckt 1 Ckt Ckt 1 Ckt Single Point Power Source Minimum Circuit Ampacity Maximum Overcurrent Protection.5 kw ECB5-.5 (1R08) Wire Leads 08 1.9 6,00.9 16 - - - 0 - - - - - - - - - 0.1 7,00.9 17 - - - 0 - - - - - - - - - 0. 7,800.9 17 - - - 0 - - - - - - - - - 0.5 8,500.9 18 - - - 0 - - - - - - - - - 5 kw ECB5-5 (1R5) ECB5-5CB (1R60) 0A Circuit Breaker 08.8 1,800.9 7 - - - 0 - - - - - - - - - 0. 1,00.9 9 - - - 0 - - - - - - - - - 0.6 15,700.9 0 - - - 0 - - - - - - - - - 0 5.0 17,100.9 1 - - - 5 - - - - - - - - - 7.5 kw ECB5-7.5 (1R61) ECB5-7.5CB (1S08) 5A Circuit Breaker 08 5.6 19,00.9 9 - - - 0 - - - - - - - - - 0 6. 1,500.9 1 - - - 5 - - - - - - - - - 0 6.9,500.9 - - - 5 - - - - - - - - - 0 7.5 5,600.9 - - - 5 - - - - - - - - - 10 kw ECB5-10 (10Z) ECB5-10CB (10T7) 60A Circuit Breaker 08 6.8,000.9 5 - - - 5 - - - - - - - - - 0 7.6 5,800.9 8 - - - 50 - - - - - - - - - 0 8. 8,00.9 50 - - - 50 - - - - - - - - - 0 9.0 0,700.9 5 - - - 60 - - - - - - - - - 1.5 kw ECB5-1.5CB (1S77) (1) 50A and (1) 5A Circuit Breaker 08 9.,000.9 5 5 65 70 0 10.5 5,800.9 5 5 5 68 70 0 11.5 9,00.9 6 5 50 5 71 80 0 1.5,600.9 8 6 50 0 7 80 15 kw ECB5-15CB (1S87) (1) 60A and (1) 0A Circuit Breaker 08 11. 8,00.9 5 5 0 50 7 80 0 1.6,000.9 6 8 0 50 76 80 0 1.5 7,000.9 7 50 0 50 80 80 0 15.0 51,00.9 8 5 5 60 8 90 NOTE - Circuit 1 Minimum Circuit Ampacity includes the Blower Motor Full Load Amps. 1 Electric heater capacity only - does not include additional blower motor heat capacity. Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167 F. HACR type breaker or fuse. Bold indicates that the circuit breaker on CB circuit breaker models must be replaced with size shown. See table on page 17. CBX5UHV - 1.5 to 5 ton Air Handlers / Page 15

ELECTRIC HEAT DATA SINGLE PHASE CBX5UHV-0 Description Input Blower Motor Full Load Amps Minimum Circuit Ampacity Maximum Overcurrent Protection Volt kw 1 Btuh Ckt 1 Ckt Ckt 1 Ckt Single Point Power Source Minimum Circuit Ampacity Maximum Overcurrent Protection.5 kw ECB5-.5 (1R08) Wire Leads 08 1.9 6,00 5. 18 - - - 0 - - - - - - - - - 0.1 7,00 5. 18 - - - 0 - - - - - - - - - 0. 7,800 5. 19 - - - 0 - - - - - - - - - 0.5 8,500 5. 0 - - - 0 - - - - - - - - - 5 kw ECB5-5 (1R5) ECB5-5CB (1R60) 0A Circuit Breaker 08.8 1,800 5. 9 - - - 0 - - - - - - - - - 0. 1,00 5. 0 - - - 0 - - - - - - - - - 0.6 15,700 5. - - - 5 - - - - - - - - - 0 5.0 17,100 5. - - - 5 - - - - - - - - - 7.5 kw ECB5-7.5 (1R61) ECB5-7.5CB (1S08) 5A Circuit Breaker 08 5.6 19,00 5. 0 - - - 0 - - - - - - - - - 0 6. 1,500 5. - - - 5 - - - - - - - - - 0 6.9,500 5. - - - 5 - - - - - - - - - 0 7.5 5,600 5. 6 - - - 50 - - - - - - - - - 10 kw ECB5-10 (10Z) ECB5-10CB (10T7) 60A Circuit Breaker 08 6.8,000 5. 7 - - - 50 - - - - - - - - - 0 7.6 5,800 5. 9 - - - 50 - - - - - - - - - 0 8. 8,00 5. 5 - - - 60 - - - - - - - - - 0 9.0 0,700 5. 5 - - - 60 - - - - - - - - - 1.5 kw ECB5-1.5CB (1S77) (1) 50A and (1) 5A Circuit Breaker 08 9.,000 5. 5 5 67 70 0 10.5 5,800 5. 6 50 5 70 70 0 11.5 9,00 5. 8 5 50 5 7 80 0 1.5,600 5. 50 6 50 0 76 80 15 kw ECB5-15CB (1S87) (1) 60A and (1) 0A Circuit Breaker 08 11. 8,00 5. 9 5 0 50 7 80 0 1.6,000 5. 0 8 0 50 78 80 0 1.5 7,000 5. 50 5 50 8 90 0 15.0 51,00 5. 5 5 60 85 90 NOTE - Circuit 1 Minimum Circuit Ampacity includes the Blower Motor Full Load Amps. 1 Electric heater capacity only - does not include additional blower motor heat capacity. Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167 F. HACR type breaker or fuse. Bold indicates that the circuit breaker on CB circuit breaker models must be replaced with size shown. See table on page 17. CBX5UHV - 1.5 to 5 ton Air Handlers / Page 16

ELECTRIC HEAT DATA SINGLE PHASE Description 5 kw ECB5-5 (1R5) ECB5-5CB (1R60) 0A Circuit Breaker 7.5 kw ECB5-7.5 (1R61) ECB5-7.5CB (1S08) 5A Circuit Breaker 10 kw ECB5-10 (10Z) ECB5-10CB (10T7) 60A Circuit Breaker 1.5 kw ECB5-1.5CB (1S77) (1) 50A and (1) 5A Circuit Breaker 15 kw ECB5-15CB (1S87) (1) 60A and (1) 0A Circuit Breaker 0 kw ECB5-0CB (10T5) (1) 60A and (1) 60A Circuit Breaker Input Blower Motor Full Load Amps CBX5UHV-08, CBX5UHV-060 Minimum Circuit Ampacity Maximum Overcurrent Protection Volt kw 1 Btuh Ckt 1 Ckt Ckt 1 Ckt Single Point Power Source Minimum Circuit Ampacity Maximum Overcurrent Protection 08.8 1,800 6.9 1 - - - 5 - - - - - - - - - 0. 1,00 6.9 - - - 5 - - - - - - - - - 0.6 15,700 6.9 - - - 5 - - - - - - - - - 0 5.0 17,100 6.9 5 - - - 5 - - - - - - - - - 08 5.6 19,00 6.9 - - - 5 - - - - - - - - - 0 6. 1,500 6.9 - - - 5 - - - - - - - - - 0 6.9,500 6.9 6 - - - 50 - - - - - - - - - 0 7.5 5,600 6.9 8 - - - 50 - - - - - - - - - 08 6.8,000 6.9 9 - - - 50 - - - - - - - - - 0 7.6 5,800 6.9 5 - - - 60 - - - - - - - - - 0 8. 8,00 6.9 5 - - - 60 - - - - - - - - - 0 9.0 0,700 6.9 56 - - - 60 - - - - - - - - - 08 9.,000 6.9 6 50 5 69 70 0 10.5 5,800 6.9 8 50 5 7 80 0 11.5 9,00 6.9 50 5 50 5 75 80 0 1.5,600 6.9 5 6 60 0 78 80 08 11. 8,00 6.9 1 5 5 50 76 80 0 1.6,000 6.9 8 5 50 80 80 0 1.5 7,000 6.9 50 5 50 8 90 0 15.0 51,00 6.9 5 5 5 60 87 90 08 15.0 51,00 6.9 50 9 50 50 99 100 0 16.8 57,00 6.9 5 5 60 60 10 110 0 18. 6,700 6.9 55 5 60 60 109 110 0 0.0 68,00 6.9 57 56 60 60 11 15 NOTE - Circuit 1 Minimum Circuit Ampacity includes the Blower Motor Full Load Amps. 1 Electric heater capacity only - does not include additional blower motor heat capacity. Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167 F. HACR type breaker or fuse. Bold indicates that the circuit breaker on CB circuit breaker models must be replaced with size shown. See table on page 17. REPLACEMENT CIRCUIT BREAKERS Voltage Description Catalog No. 08/0V - 1 Phase 5 amp, pole 1K1 0 amp, pole 17K70 5 amp, pole 7K07 0 amp, pole 9K1 5 amp, pole 17K71 50 amp, pole 1K1 60 amp, pole 17K7 CBX5UHV - 1.5 to 5 ton Air Handlers / Page 17

DIMENSIONS - UNIT - UPFLOW - INCHES (MM) B / (19) LINE VOLTAGE INLETS (Top and Right Side) C CIRCUIT BREAKER KNOCKOUTS LOW VOLTAGE INLETS (Either Side) AIR FLOW A F G SUCTION LINE LIQUID LINE CONDENSATE DRAIN PIPING PLATE () (-1/ x -/) FILTER ACCESS E D / (19) FRONT VIEW SIDE VIEW NOTE - Not available for downflow applications. Dimension Supply Air Opening Return Air Opening 018 0 00 06 0 08-060 in. mm in. mm in. mm in. mm in. mm in. mm A 8 965 0-1/ 109 109 8 119 8 119 5-1/ 1 B 15 81 18-1/ 70 18-1/ 70 1-7/8 556 1-7/8 556 1-7/8 556 C 559 559 559 559 6 660 6 660 D 6 15 6 15 6 15 1-1/ 11 6-1/ 159 6-/8 16 E 11 79 1 57 16 06 18-7/8 79 17-7/8 5 15-1/ 87 F -5/8 9 5-1/ 10 5-1/ 10 5-/ 16-1/ 8-1/ 8 G -5/8 9 5-1/ 10 5-1/ 10 5-/ 16-5/8 117 6-/8 16 Depth 17 17 17 17 1 5 1 5 Width 1 0 16-1/ 19 16-1/ 19 19-7/8 505 19-7/8 505 19-7/8 505 Depth 0-/ 57 0-/ 57 0-/ 57 0-/ 57 -/ 69 -/ 69 Width 1-1/ 18 16 06 16 06 19-/8 9 19-/8 9 19-/8 9 CBX5UHV - 1.5 to 5 ton Air Handlers / Page 18

DIMENSIONS - UNIT - HORIZONTAL - INCHES (MM) C LINE VOLTAGE INLETS (Top and Right Side) LOW VOLTAGE INLETS (Either Side) TOP VIEW / (19) A CONDENSATE DRAIN PIPING PLATE () (-1/ x -/) FILTER ACCESS / (19) B CIRCUIT BREAKER KNOCKOUTS AIR FLOW LIQUID SUCTION LINE LINE F G FRONT VIEW NOTE - Shipped for horizontal left-hand discharge. May be field converted to horizontal right-hand air discharge by repositioning horizontal drain pan. E D Dimension Supply Air Opening Return Air Opening 018 0 00 06 0 08-060 in. mm in. mm in. mm in. mm in. mm in. mm A 8 965 0-1/ 109 109 8 119 8 119 5-1/ 1 B 15 81 18-1/ 70 18-1/ 70 1-7/8 556 1-7/8 556 1-7/8 556 C 559 559 559 559 6 660 6 660 D 6 15 6 15 6 15 1-1/ 11 6-1/ 159 6-/8 16 E 11 79 1 57 16 06 18-7/8 79 17-7/8 5 15-1/ 87 F -5/8 9 5-1/ 10 5-1/ 10 5-/ 16-1/ 8-1/ 8 G -5/8 9 5-1/ 10 5-1/ 10 5-/ 16-5/8 117 6-/8 16 Depth 17 17 17 17 1 5 1 5 Height 1 0 16-1/ 19 16-1/ 19 19-7/8 505 19-7/8 505 19-7/8 505 Depth 0-/ 57 0-/ 57 0-/ 57 0-/ 57 -/ 69 -/ 69 Height 1-1/ 18 16 06 16 06 19-/8 9 19-/8 9 19-/8 9 CBX5UHV - 1.5 to 5 ton Air Handlers / Page 19

DIMENSIONS - ACCESSORIES - INCHES (MM) SIDE RETURN UNIT STAND (Upflow Only) 16 (06) 6 (15) 1-1/ (50) ADJUSTABLE 0 (508) to 5 (65) ALL UNITS INSTALLATION CLEARANCES WITH ELECTRIC HEAT Cabinet 0 inch (0 mm) To Plenum 0 inch (0 mm) To Outlet Duct within feet (91 mm) 0 inch (0 mm) Floor 0 inch (0 mm) Service / Maintenance See Note #1 1 Front service access - inches (610 mm) minimum. NOTE - If cabinet depth is more than inches (610 mm), allow a minimum of the cabinet depth plus inches (51 mm). CBX5UHV - 1.5 to 5 ton Air Handlers / Page 0

REVISIONS Sections Electric Heat Data Description of Change New catalog numbers for most electric heat models. Visit us at www.lennox.com For the latest technical information, www.lennoxdavenet.com Contact us at 1-800--LENNOX NOTE - Due to Lennox ongoing commitment to quality, Specifications, Ratings and Dimensions subject to change without notice and without incurring liability. Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury. Installation and service must be performed by a qualified installer and servicing agency. 015 Lennox Industries, Inc.