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PRODUCT SPECIFICATIONS AIR HANDLERS CBX5UH (-0) MERIT Series R-0A - Upflow / Horizontal Bulletin No. 060 March 05 Supersedes November 0 Nominal Capacity -.5 to 5 Tons Optional Electric Heat -.5 to 0 kw MODEL NUMBER IDENTIFICATION CB X 5 UH - 00-0 - 0 Unit Type CB = Air Handler Refrigerant Type X = R-0A Series Configuration UH = Upflow/Horizontal Nominal Cooling Capacity 08 =.5 tons 0 = tons 00 =.5 tons 06 = tons 0 =.5 tons 08 = tons 060 = 5 tons Minor Revision Number Voltage 0 = 08/0V- phase-60hz

FEATURES B CONTENTS Blower Data... 6 Dimensions - Accessories... 5 Dimensions - Unit... Electrical Data... 5 Electric Heat Data... 8 Features... Installation Clearances With Electric Heat... Model Number Identification... Optional Accessories... 5 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. APPLICATIONS.5 to 5 ton nominal sizes. Upflow or horizontal applications. Downflow applications with optional conversion kit. CBX5UH models are applicable to R-0A 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. APPROVALS Tested with matching air conditioners and heat pump units in the Lennox Research Laboratory environmental test room in accordance with AHRI Standard 0/0. Optional electric heaters are rated in accordance with US Department of Energy (DOE) test procedures and Federal Trade Commission (FTC) labeling regulations. Air handlers and components within are bonded for grounding to meet safety standards for servicing required by ETL, NEC and CEC. Units are ETL certified for the U.S. and Canada. ISO 900 Registered Manufacturing Quality System. 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. C B E A Check and Expansion Valve Furnished CBX5UH models have non-chlorine, ozone friendly, R-0A valve. Wide range valve. Chatleff style fitting. D C 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. G 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 ensure leakproof construction. H F CBX5UH -.5 to 5 ton Air Handlers / Page

D E F FEATURES FILTER Disposable inch filter is furnished. Filter rack furnished in cabinet for easy filter installation. See Specifications tables for filter sizes. BLOWER Multi-speed PSC motor. Choice of blower speeds. See blower performance tables. Speed changes easily accomplished by a simple wiring change. Blower is easily removed from unit for servicing. Time Delay Blower Relay Relay allows 0 second blower on delay before continuous fan or cooling operation and 5 second blower off delay after continuous fan or cooling operation. CONTROLS Transformer and Blower Cooling Relay volt transformer and blower cooling relay 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. Pre-painted cabinet finish. Completely insulated with foil faced fiberglass insulation. Removable panels provide complete service access. Filter access door for easy filter replacement. Thumbscrews hold filter door in place. 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. G 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. Factory installed 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 Downflow Conversion Kit Required for field conversion to downflow position. Kit consists of insulated downflow drain pan, insulated drain pan drip shields, coil drip shields, seal plates and support brackets for repositioning coil and drain pan. See Specifications table. Horizontal Support Frame Kit Provides support of unit in horizontal applications. Consists of () x -/ x -5/8 in. and () 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 6 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. Low Leakage Cabinet All models have less than % air leakage and meet ANSI/ASHRAE Standard 9-00 Method of Test for Determining the Air Tightness of HVAC Equipment. Upflow/Horizontal Capability (Optional Downflow) Shipped for upflow and horizontal left-hand discharge. May be field converted to horizontal right-hand air discharge by repositioning horizontal drain pan. Optional Downflow Conversion Kit available for field conversion. CBX5UH -.5 to 5 ton Air Handlers / Page

FEATURES H 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. Breaker Models ECB5-5CB, ECB5-7.5CB, ECB5-0CB, ECB5-.5, ECB5-5CB, 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. breakers qualify as disconnect means at unit in many areas, eliminate the need for field provided disconnect. Consult local electrical code in your area. Breaker Cover Kit Flexible plastic cover protects circuit breaker. Recommended in areas with high humidity or unconditioned areas to prevent nuisance tripping. 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. Removeable cover provides easy access. Dimensions (H x W x D) - 7 x 7 x in. INSTALLATION CLEARANCES WITH ELECTRIC HEAT Cabinet 0 inch (0 mm) To Plenum 0 inch (0 mm) To Outlet Duct within feet (9 mm) 0 inch (0 mm) Floor 0 inch (0 mm) See Note # Service / Maintenance See Note # Units installed on combustible floors in the downflow position with electric heat do not require a downflow combustible flooring base. Front service access - inches (60 mm) minimum. NOTE - If cabinet depth is more than inches (60 mm), allow a minimum of the cabinet depth plus inches (5 mm). REPLACEMENT CIRCUIT BREAKERS Voltage Description Catalog No. 08/0V - Phase 5 amp, pole K 0 amp, pole 7K70 5 amp, pole 7K07 0 amp, pole 9K 5 amp, pole 7K7 50 amp, pole K 60 amp, pole 7K7 CBX5UH -.5 to 5 ton Air Handlers / Page

SPECIFICATIONS General Data Model Number CBX5UH-08 CBX5UH-0 CBX5UH-00 CBX5UH-06 Nominal tonnage.5.5 Connections Suction/Vapor line (o.d.) - in. sweat / / / 7/8 Indoor Coil Liquid line (o.d.) - in. sweat /8 /8 /8 /8 Condensate - in. fpt () / () / () / () / Net face area - ft...56.00.89 Tube outside diameter - in. /8 /8 /8 /8 Number of rows Fins per inch Blower Wheel nominal diameter x width - in. 9 x 6 9 x 6 0 x 8 9 x 0 Blower motor output - hp /5 / / / Filters Size of filter - in. x 0 x 5 x 0 x 5 x 0 x 8 x 0 x Shipping Data - package - lbs. 05 6 6 ELECTRICAL DATA Voltage - phase (60 hz) 08/0V 08/0V 08/0V 08/0V overcurrent protection (unit only) 5 5 5 5 circuit ampacity (unit only)..0..9 Blower Motor Full Load Amps..6.9. SPECIFICATIONS General Data Model Number CBX5UH-0 CBX5UH-08 CBX5UH-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 Blower Wheel nominal diameter x width - in. x 8 x 9 x 9 Blower motor output - hp / / / Filters Size of filter - in. 8 x x 8 x x 8 x x Shipping Data - package - lbs. 6 86 86 ELECTRICAL DATA Disposable filter. Voltage - phase (60 hz) 08/0V 08/0V 08/0V overcurrent protection (unit only) 5 5 5 HACR type circuit breaker or fuse. circuit ampacity (unit only)..9.9 Blower Motor Full Load Amps.9.9.9 Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 67 F. OPTIONAL ACCESSORIES - ORDER SEPARATELY Model -08-0 -00-06 -0-08 -060 Downflow Conversion Kit 96W7 96W8 97W95 97W96 Horizontal Support Frame Kit 56J8 56J8 56J8 56J8 Side Return Unit Stand (Upflow Only) 5K 5K 5K 5K Single-Point Power Source Control Box (for Electric Heat) H9 H9 H9 H9 Wall Hanging Bracket Kit (Upflow Only) 5K0 5K0 5K0 5K0 CBX5UH -.5 to 5 ton Air Handlers / Page 5

BLOWER DATA - UPFLOW AND HORIZONTAL CBX5UH-08 BLOWER PERFORMANCE 0.0 905 670 50 0.0 865 650 95 0.0 80 60 75 0.0 770 595 5 0.50 700 500 5 CBX5UH-0 BLOWER PERFORMANCE 0.0 80 90 5 0.0 770 65 5 0.0 690 0 00 0.0 600 95 75 0.50 500 5 5 CBX5UH-0 BLOWER PERFORMANCE 0.0 0 885 60 0.0 00 875 65 0.0 070 850 65 0.0 00 80 60 0.50 950 780 580 CBX5UH-08 BLOWER PERFORMANCE 0.0 070 995 775 0.0 970 895 70 0.0 850 800 65 0.0 70 685 565 0.50 595 560 70 CBX5UH-00 BLOWER PERFORMANCE 0.0 0 075 900 0.0 0 060 865 0.0 70 00 80 0.0 5 985 785 0.50 085 90 70 CBX5UH-060 BLOWER PERFORMANCE 0.0 0 965 675 0.0 085 95 60 0.0 000 875 580 0.0 895 800 50 0.50 795 695 50 CBX5UH-06 BLOWER PERFORMANCE 0.0 660 500 60 0.0 575 5 0 0.0 95 85 5 0.0 05 00 085 0.50 90 00 990 CBX5UH -.5 to 5 ton Air Handlers / Page 6

BLOWER DATA - DOWNFLOW CBX5UH-08 BLOWER PERFORMANCE 0.0 670 600 95 0.0 60 565 60 0.0 590 500 0 0.0 55 65 80 0.50 70 0 0 CBX5UH-0 BLOWER PERFORMANCE 0.0 60 75 0 0.0 75 95 5 0.0 5 5 80 0.0 5 50 0 0.50 5 055 05 CBX5UH-0 BLOWER PERFORMANCE 0.0 95 80 60 0.0 890 800 65 0.0 850 760 595 0.0 795 705 560 0.50 70 605 65 CBX5UH-08 BLOWER PERFORMANCE 0.0 75 665 605 0.0 60 585 50 0.0 550 95 5 0.0 55 00 50 0.50 50 80 05 CBX5UH-00 BLOWER PERFORMANCE 0.0 05 950 80 0.0 065 95 780 0.0 00 870 75 0.0 960 85 695 0.50 900 660 65 CBX5UH-060 BLOWER PERFORMANCE 0.0 785 70 60 0.0 700 650 555 0.0 605 570 90 0.0 505 55 90 0.50 90 70 80 CBX5UH-06 BLOWER PERFORMANCE 0.0 95 60 065 0.0 090 065 985 0.0 00 990 95 0.0 960 95 865 0.50 885 850 805 CBX5UH -.5 to 5 ton Air Handlers / Page 7

ELECTRIC HEAT DATA SINGLE PHASE CBX5UH-08 Description Input Volt kw Btuh Blower Motor Full Load Amps.5 kw ECB5-.5 (R08) Wire Leads 08.9 6,00. 5 0. 7,00. 5 0. 7,800. 5 0.5 8,500. 5 5 kw ECB5-5 (R5) ECB5-5CB (R60) 0A Breaker 08.8,800. 5 0.,00. 5 5 0.6 5,700. 6 0 0 5.0 7,00. 7 0 7.5 kw ECB5-7.5 (R6) ECB5-7.5CB (S08) 5A Breaker 08 5.6 9,00. 5 0 0 6.,500. 7 0 0 6.9,500. 9 0 0 7.5 5,600. 0 5 0 kw ECB5-0 (0Z) ECB5-0CB (0T7) 60A Breaker 08 6.8,000. 5 0 7.6 5,800. 5 0 8. 8,00. 6 50 0 9.0 0,700. 8 50 SINGLE PHASE CBX5UH-0 Description Input Volt kw Btuh Blower Motor Full Load Amps.5 kw ECB5-.5 (R08) Wire Leads 08.9 6,00.6 5 0. 7,00.6 5 0. 7,800.6 5 5 0.5 8,500.6 5 5 5 kw ECB5-5 (R5) ECB5-5CB (R60) 0A Breaker 08.8,800.6 5 5 0.,00.6 6 0 0.6 5,700.6 7 0 0 5.0 7,00.6 8 0 7.5 kw ECB5-7.5 (R6) ECB5-7.5CB (S08) 5A Breaker 08 5.6 9,00.6 6 0 0 6.,500.6 8 0 0 6.9,500.6 0 0 0 7.5 5,600.6 5 0 kw ECB5-0 (0Z) ECB5-0CB (0T7) 60A Breaker 08 6.8,000.6 5 0 7.6 5,800.6 5 5 0 8. 8,00.6 7 50 0 9.0 0,700.6 9 50 NOTE - includes the Blower Motor Full Load Amps. 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 67 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. CBX5UH -.5 to 5 ton Air Handlers / Page 8

ELECTRIC HEAT DATA SINGLE PHASE Description Input Blower Motor Full Load Amps CBX5UH-00 Volt kw Btuh Ckt Ckt Ckt Ckt Single Point Power Source.5 kw ECB5-.5 (R08) Wire Leads 08.9 6,00.9 - - - 5 - - - - - - - - - 0. 7,00.9 - - - 5 - - - - - - - - - 0. 7,800.9 5 - - - 5 - - - - - - - - - 0.5 8,500.9 5 - - - 5 - - - - - - - - - 5 kw ECB5-5 (R5) ECB5-5CB (R60) 0A Breaker 08.8,800.9 5 - - - 5 - - - - - - - - - 0.,00.9 6 - - - 0 - - - - - - - - - 0.6 5,700.9 7 - - - 0 - - - - - - - - - 0 5.0 7,00.9 8 - - - 0 - - - - - - - - - 7.5 kw ECB5-7.5 (R6) ECB5-7.5CB (S08) 5A Breaker 08 5.6 9,00.9 6 - - - 0 - - - - - - - - - 0 6.,500.9 8 - - - 0 - - - - - - - - - 0 6.9,500.9 0 - - - 0 - - - - - - - - - 0 7.5 5,600.9 - - - 5 - - - - - - - - - 0 kw ECB5-0 (0Z) ECB5-0CB (0T7) 60A Breaker 08 6.8,000.9 - - - 5 - - - - - - - - - 0 7.6 5,800.9 5 - - - 5 - - - - - - - - - 0 8. 8,00.9 7 - - - 0 9.0 0,700.9 9 - - -.5 kw ECB5-.5CB (S77) () 50A and () 5A Breaker 08 9.,000.9 0 9 0 0 58 60 0 0.5 5,800.9 0 5 0 6 70 0.5 9,00.9 5 5 6 70 0.5,600.9 6 50 5 66 70 5 kw ECB5-5CB (S87) () 60A and () 0A Breaker 08. 8,00.9 5 5 5 50 69 70 0.6,000.9 6 8 0 50 7 80 0.5 7,000.9 7 50 0 50 76 80 0 5.0 5,00.9 8 5 0 60 80 80 NOTE - includes the Blower Motor Full Load Amps. 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 67 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. CBX5UH -.5 to 5 ton Air Handlers / Page 9

ELECTRIC HEAT DATA SINGLE PHASE Description Input Blower Motor Full Load Amps CBX5UH-06 Volt kw Btuh Ckt Ckt Ckt Ckt Single Point Power Source.5 kw ECB5-.5 (R08) Wire Leads 08.9 6,00. - - - 5 - - - - - - - - - 0. 7,00. 5 - - - 5 - - - - - - - - - 0. 7,800. 5 - - - 5 - - - - - - - - - 0.5 8,500. 6 - - - 0 - - - - - - - - - 5 kw ECB5-5 (R5) ECB5-5CB (R60) 0A Breaker 08.8,800. 5 - - - 5 - - - - - - - - - 0.,00. 7 - - - 0 - - - - - - - - - 0.6 5,700. 8 - - - 0 - - - - - - - - - 0 5.0 7,00. 9 - - - 0 - - - - - - - - - 7.5 kw ECB5-7.5 (R6) ECB5-7.5CB (S08) 5A Breaker 08 5.6 9,00. 7 - - - 0 - - - - - - - - - 0 6.,500. 9 - - - 0 - - - - - - - - - 0 6.9,500. 0 - - - 0 - - - - - - - - - 0 7.5 5,600. - - - 5 - - - - - - - - - 0 kw ECB5-0 (0Z) ECB5-0CB (0T7) 60A Breaker 08 6.8,000. - - - 5 - - - - - - - - - 0 7.6 5,800. 6 - - - 0 8. 8,00. 8 - - - 0 9.0 0,700. 50 - - -.5 kw ECB5-.5CB (S77) () 50A and () 5A Breaker 08 9.,000. 0 9 0 0 59 60 0 0.5 5,800. 0 5 0 6 70 0.5 9,00. 5 5 65 70 0.5,600. 6 50 5 68 70 5 kw ECB5-5CB (S87) () 60A and () 0A Breaker 08. 8,00. 5 5 5 50 70 70 0.6,000. 7 8 0 50 7 80 0.5 7,000. 8 50 0 50 78 80 0 5.0 5,00. 9 5 0 60 8 90 NOTE - includes the Blower Motor Full Load Amps. 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 67 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. CBX5UH -.5 to 5 ton Air Handlers / Page 0

ELECTRIC HEAT DATA SINGLE PHASE CBX5UH-0 Description Input Blower Motor Full Load Amps Volt kw Btuh Ckt Ckt Ckt Ckt Single Point Power Source.5 kw ECB5-.5 (R08) Wire Leads 08.9 6,00.9 - - - 5 - - - - - - - - - 0. 7,00.9 - - - 5 - - - - - - - - - 0. 7,800.9 5 - - - 5 - - - - - - - - - 0.5 8,500.9 5 - - - 5 - - - - - - - - - 5 kw ECB5-5 (R5) ECB5-5CB (R60) 0A Breaker 08.8,800.9 5 - - - 5 - - - - - - - - - 0.,00.9 6 - - - 0 - - - - - - - - - 0.6 5,700.9 7 - - - 0 - - - - - - - - - 0 5.0 7,00.9 8 - - - 0 - - - - - - - - - 7.5 kw ECB5-7.5 (R6) ECB5-7.5CB (S08) 5A Breaker 08 5.6 9,00.9 6 - - - 0 - - - - - - - - - 0 6.,500.9 8 - - - 0 - - - - - - - - - 0 6.9,500.9 0 - - - 0 - - - - - - - - - 0 7.5 5,600.9 - - - 5 - - - - - - - - - 0 kw ECB5-0 (0Z) ECB5-0CB (0T7) 60A Breaker 08 6.8,000.9 - - - 5 - - - - - - - - - 0 7.6 5,800.9 5 - - - 5 - - - - - - - - - 0 8. 8,00.9 7 - - - 0 9.0 0,700.9 9 - - -.5 kw ECB5-.5CB (S77) () 50A and () 5A Breaker 08 9.,000.9 0 9 0 0 5 60 0 0.5 5,800.9 0 5 0 6 70 0.5 9,00.9 5 5 65 70 0.5,600.9 6 50 5 67 70 5 kw ECB5-5CB (S87) () 60A and () 0A Breaker 08. 8,00.9 5 5 5 50 70 70 0.6,000.9 6 8 0 50 7 80 0.5 7,000.9 7 50 0 50 77 80 0 5.0 5,00.9 8 5 0 60 8 90 NOTE - includes the Blower Motor Full Load Amps. 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 67 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. CBX5UH -.5 to 5 ton Air Handlers / Page

ELECTRIC HEAT DATA SINGLE PHASE Description Input Blower Motor Full Load Amps CBX5UH-08, CBX5UH-060 Volt kw Btuh Ckt Ckt Ckt Ckt Single Point Power Source 5 kw ECB5-5 (R5) ECB5-5CB (R60) 0A Breaker 08.8,800.9 7 - - - 0 - - - - - - - - - 0.,00.9 9 - - - 0 - - - - - - - - - 0.6 5,700.9 0 - - - 0 - - - - - - - - - 0 5.0 7,00.9 - - - 5 - - - - - - - - - 7.5 kw ECB5-7.5 (R6) ECB5-7.5CB (S08) 5A Breaker 08 5.6 9,00.9 9 - - - 0 - - - - - - - - - 0 6.,500.9 - - - 5 - - - - - - - - - 0 6.9,500.9 - - - 5 - - - - - - - - - 0 7.5 5,600.9 - - - 5 - - - - - - - - - 0 kw ECB5-0 (0Z) ECB5-0CB (0T7) 60A Breaker 08 6.8,000.9 5 - - - 5 - - - - - - - - - 0 7.6 5,800.9 8 - - - 0 8. 8,00.9 50 - - - 0 9.0 0,700.9 5 - - - 60 - - - - - - - - -.5 kw ECB5-.5CB (S77) () 50A and () 5A Breaker 08 9.,000.9 9 5 0 6 70 0 0.5 5,800.9 5 0 5 0 6 70 0.5 9,00.9 6 50 5 67 70 0.5,600.9 8 50 5 70 70 5 kw ECB5-5CB (S87) () 60A and () 0A Breaker 08. 8,00.9 7 5 0 50 7 80 0.6,000.9 9 8 0 50 76 80 0.5 7,000.9 0 50 0 50 80 80 0 5.0 5,00.9 5 5 60 8 90 0 kw ECB5-0CB (0T5) () 60A and () 60A Breaker 08 5.0 5,00.9 5 50 5 50 95 00 0 6.8 57,00.9 8 5 50 60 00 00 0 8. 6,700.9 50 55 50 60 05 0 0 0.0 68,00.9 5 57 60 60 09 0 NOTE - includes the Blower Motor Full Load Amps. 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 67 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. CBX5UH -.5 to 5 ton Air Handlers / Page

DIMENSIONS - UNIT - UPFLOW - INCHES (MM) B / (9) 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 () (-/ x -/) FILTER ACCESS E D / (9) FRONT VIEW SIDE VIEW Dimension 08 0 00 06 0 08-060 Supply Air Opening Return Air Opening in. mm in. mm in. mm in. mm in. mm in. mm A 8 965 0-/ 09 09 8 9 8 9 5-/ B 5 8 8-/ 70 8-/ 70-7/8 556-7/8 556-7/8 556 C 559 559 559 559 6 660 6 660 D 6 5 6 5 6 5 -/ 6-/ 59 6-/8 6 E 79 57 6 06 8-7/8 79 7-7/8 5 5-/ 87 F -5/8 9 5-/ 0 5-/ 0 5-/ 6 -/ 8 -/ 8 G -5/8 9 5-/ 0 5-/ 0 5-/ 6-5/8 7 6-/8 6 Depth 7 7 7 7 5 5 Width 0 6-/ 9 6-/ 9 9-7/8 505 9-7/8 505 9-7/8 505 Depth 0-/ 57 0-/ 57 0-/ 57 0-/ 57 -/ 69 -/ 69 Width -/ 8 6 06 6 06 9-/8 9 9-/8 9 9-/8 9 CBX5UH -.5 to 5 ton Air Handlers / Page

DIMENSIONS - UNIT - HORIZONTAL - INCHES (MM) C LINE VOLTAGE INLETS (Top and Right Side) LOW VOLTAGE INLETS (Either Side) TOP VIEW / (9) A CONDENSATE DRAIN PIPING PLATE () (-/ x -/) FILTER ACCESS / (9) 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 08 0 00 06 0 08-060 Supply Air Opening Return Air Opening in. mm in. mm in. mm in. mm in. mm in. mm A 8 965 0-/ 09 09 8 9 8 9 5-/ B 5 8 8-/ 70 8-/ 70-7/8 556-7/8 556-7/8 556 C 559 559 559 559 6 660 6 660 D 6 5 6 5 6 5 -/ 6-/ 59 6-/8 6 E 79 57 6 06 8-7/8 79 7-7/8 5 5-/ 87 F -5/8 9 5-/ 0 5-/ 0 5-/ 6 -/ 8 -/ 8 G -5/8 9 5-/ 0 5-/ 0 5-/ 6-5/8 7 6-/8 6 Depth 7 7 7 7 5 5 Height 0 6-/ 9 6-/ 9 9-7/8 505 9-7/8 505 9-7/8 505 Depth 0-/ 57 0-/ 57 0-/ 57 0-/ 57 -/ 69 -/ 69 Height -/ 8 6 06 6 06 9-/8 9 9-/8 9 9-/8 9 CBX5UH -.5 to 5 ton Air Handlers / Page

DIMENSIONS - ACCESSORIES - INCHES (MM) SIDE RETURN UNIT STAND (Upflow Only) 6 (06) 6 (5) -/ (50) ADJUSTABLE 0 (508) to 5 (65) ALL UNITS CBX5UH -.5 to 5 ton Air Handlers / Page 5

REVISIONS Sections Electric Heat Data Description of Change Data updated for 5 kw electric heater. 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 -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. 05 Lennox Industries, Inc.

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