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BLD2025-0104_Manufacturer_Specifications_and_Installation_Instructions_1.23.2025_10.07.51_AM_4725112AIR CONDITIONERS ML13KC1 MERIT° SERIES Single -Stage I Quantum' Coil I 1 1-Phase 1 60Hz RESIDENTIAL PRODUCT SPECIFICATIONS (EHB) MODEL NUMBER IDENTIFICATION LE__ NNOX 1.5 to 5 Tons SEER2 up to 13.9 Cooling Capacity 100,000 to 00,000 Btuh MERIT° SERIES QUANTUMT" COIL 2025 COMPLIANT REFRIGERANT ML13KC1-036-23OA01 Product Tier --------------- ML = Merit® Series - - - - - - - Revision Level Nominal SEER2 ` - - - - - - Ratings Revision Level 13=13.0to13.9 ' Refrigerant Type --------• `----- Voltage K = R-454B 230 = 208/23OV-1 phase-60Hz Unit TypeI ------- ' C=AirConditioner(Condenser) ------- Cooling Stages --- 1 —= Single Stage Compressor Regional Standards ----- - (dash) = North Region Form Number 211057 1 August 2024 Supersedes all previous versions FEATURE HIGHLIGHTS 1. Outdoor Coil Fan 2. QuantUMT1 Coil 3. Scroll Compressor 4. Heavy Gauge Steel Cabinet 5. Refrigerant Line Connections and Access CONTENTS Approvals And Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Dimensions- Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Features...........................................................3 Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Model Number Identification................................................1 Optional Accessories - Order Separately . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Optional Controls - Order Separately . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 SoundData........................................................10 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 TXV Substitution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 TXVUsage.........................................................11 ML13KC1 11.5 to 5 Ton Air Conditioners I Page 2 APPROVALS AND WARRANTY APPROVALS • AHRI Standard 210/240-2023 certified • AHRI Certified system match -ups and expanded ratings, visit www.LennoxPros.com • ENERGY STAR° Certified • Sound rated to AHRI Standard 270-2008 test conditions • Tested in Lennox' Research Laboratory environmental test room • Rated According to U.S. Department of Energy (DOE) test procedures • Region specific models meet the minimum efficiency requirements for U.S. DOE Federal Regional Standards in that area • Unit and components ETL, NEC and CEC bonded for grounding to meet safety standards for servicing • ETL certified (U.S. and Canada) • ISO 9001 Registered Manufacturing Quality System WARRANTY • Compressor: • Limited five years in residential installations • Limited five years in non-residential installations • All other covered components: • Limited five years in residential installations • Limited one year in non-residential installations NOTE - Refer to Lennox° Basic Limited Warranty at www.Lennox.com for additional details. FEATURES APPLICATIONS © QuantumTM Coil • 1.5 through 5 tons • Lennox designed and fabricated coil • Sound levels as low as 76 dBA • Enhanced aluminum alloy tube/enhanced fin coil • Single-phase power supply • Applicable to indoor air handlers or gas furnaces with indoor add -on coils • Shipped completely factory assembled, piped and wired REFRIGERATION SYSTEM R-454B Refrigerant • Low GWP (Global Warming Potential) • Zero ODP (Ozone Depletion Potential) • Low Toxicity/Lower Flammability - A2L • Unit is factory pre -charged 0 Outdoor Coil Fan • Direct drive fan • Vertical air discharge • Totally enclosed fan motor • Sleeve bearings (018 through 048 and 060 models) • Ball bearings (059 model) • Inherently protected • Motor rain shield • Louvered steel fan guard • Superior corrosion resistance • Ripple -edged aluminum fins • Aluminum tube construction • Lanced fins for maximum fin surface exposure • Fin collars grip tubing for maximum contact area • Flared shoulder tubing connections • Factory tested under high pressure • Entire coil is accessible for cleaning High Capacity Liquid Line Drier • Furnished with unit for field installation • Drier traps moisture or dirt that could contaminate the system • 100% molecular -sieve, bead type drier High Pressure Switch • Protects the system from high pressure conditions that can be a result of fan failure or a blocked/dirty coil. • Automatic reset Low Pressure Switch • Shuts off unit if suction pressure falls below setting • Provides loss of charge and freeze-up protection • Automatic reset ML13KC1 11.5 to 5 Ton Air Conditioners I Page 3 FEATURES REFRIGERATION SYSTEM (continued) Optional Accessories Expansion Valve Kits • Field installed on indoor units (if required) • See TXV Usage table • Chatleff-style fitting Freezestat • Senses suction line temperature • Cycles compressor off when suction line temperature falls below freezestat setpoint • Opens at 29°F and closes at 58°F • Installs on or near the discharge line of the evaporator or on the suction line Loss of Charge Switch Kit • Protects compressor from damage from low refrigerant charge conditions • SPST, normally -closed • Automatic reset Refrigerant Line Kits • Refrigerant lines are shipped refrigeration clean • Lines are cleaned, dried, pressurized and sealed at factory • Suction line fully insulated • Lines are stubbed at both ends INDOOR REFRIGERANT DETECTION SYSTEM (RDS) • Complies with UL 60335-2-40 approved standard • Required for all systems using R-454B refrigerant • Factory or field installed on all indoor units • Consists of a RIDS refrigerant detection sensor and a mitigation control in the indoor unit • Ensures safe operation for systems equipped with R-454B refrigerant • Indoor sensor will detect any R-454B refrigerant • If R-454B refrigerant is detected, the refrigerant detection system will stop compressor operation and operate the blower to reduce concentrations in the conditioned space • Once safe levels are reached the HVAC system will resume normal operation • Refer to indoor unit Product Specifications documents for additional details COMPRESSOR © Single -Stage Scroll Compressor • High volumetric efficiency • Uniform suction flow • Constant discharge flow • High efficiency • Quiet operation • Low gas pulses during compression reduces operational sound levels. • Compressor motor is internally protected from excessive current and temperature • Muffler in discharge line reduces operating sound levels • Compressor is installed in the unit on resilient rubber mounts for vibration free operation Scroll Compressor Operation • Two involute spiral scrolls matched together generate a series of crescent -shaped gas pockets between them • During compression, one scroll remains stationary while the other scroll orbits around it • Gas is drawn into the outer pocket, the pocket is sealed as the scroll rotates • As the spiral movement continues, gas pockets are pushed to the center of the scrolls. Volume between the pockets is simultaneously reduced • When the pocket reaches the center, gas is now at high pressure and is forced out of a port located in the center of the fixed scrolls • During compression, several pockets are compressed simultaneously resulting in a smooth continuous compression cycle • Continuous flank contact, maintained by centrifugal force, minimizes gas leakage and maximizes efficiency • Compressor is tolerant to the effects of slugging and contaminants. If this occurs, scrolls separate, allowing liquid or contaminants to be worked toward the center and discharged Compressor Crankcase Heater (048, 060 Models) • Prevents migration of liquid refrigerant into compressor and ensures proper compressor lubrication Optional Accessories Compressor Crankcase Heater (018 thru 042 models) • Prevents migration of liquid refrigerant into compressor and ensures proper compressor lubrication Compressor Sound Cover • Reinforced vinyl compressor cover • 1-1/2 inch thick batt fiberglass insulation • All open edges are sealed with a one -inch wide hook and loop fastening tape ML13KC1 11.5 to 5 Ton Air Conditioners I Page 4 FEATURES COMPRESSOR (continued) Optional Accessories (continued) Compressor Hard Start Kit • Single-phase units are equipped with a PSC compressor motor • This type of motor normally does not need a potential relay and start capacitor • For conditions such as low voltage, kit may be required to increase the compressor starting torque Compressor Low Ambient Cut -Off Switch • Non-adjustable switch (low ambient cut-out) • Prevents compressor operation when outdoor temperature is below 357 Compressor Time -Off Control • Kit prevents compressor short -cycling • Allows time for suction and discharge pressure to equalize. • Permits compressor start-up in an unloaded condition • Automatic reset with 5 minute delay between compressor shut-off and start-up CONTROLS Optional Accessories M30 Smart Wi-Fi Thermostat • Wi-Fi-enabled, electronic 7-day, universal, multi -stage, programmable, touchscreen thermostat • 4 Heat/2 Cool • Auto -changeover • Dual -fuel control with optional outdoor sensor • Controls dehumidification during cooling mode and humidification during heating mode • Offers enhanced capabilities including humidification / dehumidification / dewpoint measurement and control, Humiditrol° control, and equipment maintenance reminders • Easy to read 4.3 in. color touchscreen (measured diagonally) • LCD display with backlight shows the current and set temperature, time, inside relative humidity, system status (operating mode and schedules) and outside temperature (optional outdoor sensor required) • Smooth Setback Recovery starts system early to achieve setpoint at start of program period • Compressor short -cycle protection (5 minutes) • Up to four separate schedules are available plus Schedule IQT" • One -Touch Away Mode - A quick and easy way to set the cooling and heating setpoints while away • Smart Away- - Uses geo-fencing technology to determine when the homeowner is within a predetermined distance from the home to operate the system when leaving, away and arriving • Wi-Fi remote monitoring and adjustment through a home wireless network for desktop PCs, laptops and apps for smartphones or tablets • Smart home automation compatible with Amazon Alexa°, Google Assistant and IFTTT • Service Dashboard features online real-time monitoring of installed Lennox° Communicating thermostats NOTE - See the Lennox° M30 Smart Wi-Fi Thermostat Product Specifications bulletin for more information. Remote Outdoor Temperature Sensor • Used with the Lennox° M30 Smart Wi-Fi Thermostat • Outdoor sensor allows thermostat to display outdoor temperature Thermostat • Thermostat is not furnished with unit • See Lennox Price Book or Lennox Pros for selection Indoor Blower Off Delay Relay • Delays the indoor blower -off time during the cooling cycle Low Ambient Kit • Air conditioners can operate down to 45°F outdoor air temperature without additional controls • Allows unit to operate properly down to 30°F NOTE - Crankcase heater and freezestat should be installed on compressors equipped with a low ambient kit. NOTE - A compressor lock -out thermostat should be added to terminate compressor operation below recommended operation conditions. ML13KC1 11.5 to 5 Ton Air Conditioners I Page 5 FEATURES CABINET 0 • Heavy gauge steel construction • Louvered heavy gauge steel panels surround unit on all four sides • Pre -painted powder paint cabinet finish • Control box is conveniently located with all controls factory wired • Corner patch plate allows access to compressor components • Drainage holes are provided in base section for moisture removal Zinc -Coated Steel Unit Base • Resists rust and corrosion © Refrigerant Line Connections, Electrical Inlets, Service Valves • Sweat connection suction and liquid lines • Located on corner of unit cabinet • Suction valve can be fully shut off, while liquid valve may be front seated to manage refrigerant charge while servicing system • Refrigerant line connections and field wiring inlets are located in one central area of the cabinet • See dimension drawing Braze-Free/Press Fitting Flexibility • Units can accommodate braze -free or press fittings for installation versatility Optional Accessories Unit Stand -Off Kit • Black high density polyethylene feet raise unit off of mounting surface • Four feet are furnished per order number ML13KC1 11.5 to 5 Ton Air Conditioners I Page 6 SPECIFICATIONS NORTH REGION Size 018 024 030 036 Nominal Tonnage 1.5 2 2.5 3 Sound Rating Number dBA 73 76 76 76 Connections Liquid line (OD) - in. (Sweat) Suction line (OD) - in. 3/8 3/8 3/8 3/8 3/4 3/4 3/4 3/4 Compressor Type 1-Stage Scroll 1-Stage Scroll 1-Stage Scroll 1-Stage Scroll Refrigerant R-454B charge furnished 4 lbs. 0 oz. 4 lbs. 7 oz. 4 lbs. 14 oz. 5 lbs. 10 oz. Indoor Unit Expansion Valve (TXV) 26Z70 26Z70 26Z70 26Z70 Outdoor Net face area - ft.z Coil Tube diameter - in. Rows Fins - in. 11.33 13.22 16.33 18.67 5/16 5/16 5/16 5/16 1 1 1 1 26 26 26 26 Outdoor HP Fan Diameter - in. Blades Cfm Rpm Watts 1/10 1/10 1/6 1/6 18 18 22 22 3 3 3 3 2290 2350 2610 2800 1075 1075 825 825 150 155 160 190 Shipping Data - lbs. 128 134 152 161 ELECTRICAL DATA Line voltage data (Volts -Phase -Hz) 2 Maximum overcurrent protection (MOCP) amps 3 Minimum circuit ampacity (MCA) 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 15 20 25 30 11.1 13.5 16.6 17.8 Compressor Rated load amps Locked rotor amps 8.3 10.2 12.5 13.4 45 60.2 67.8 82.5 Fan Motor Full load amps Locked rotor amps 0.65 0.65 1.0 1.0 1.3 1.3 1.9 1.9 OPTIONAL CONTROLS - ORDER SEPARATELY M30 Smart Wi-Fi Thermostat 15Z69 Remote Outdoor Temperature Sensor X2658 OPTIONAL ACCESSORIES - ORDER SEPARATELY Compressor Copeland 27V63 Crankcase Heater LG 271.116 Compressor Hard Copeland 63W22 Start Kit 10J42 LG 10J42 Compressor Low Ambient Cut -Off Switch 45F08 Compressor Timed -Off Control 47J27 Compressor Sound Cover 18J42 Freezestat 3/8 in. 93G35 Indoor Blower Off Delay Relay 58M81 Loss of Charge Switch Kit 84M23 ° Low Ambient Kit (Fan Cycling) 34M72 Refrigerant 3/8 x 3/4 3/8 20 ft. 89J56 Line Sets 3/8 x 3/4 3/8 30 ft. 89J57 Liquid x Suction OD 3/8 x 3/4 3/8 40 ft. 89J58 Insulation Thickness Length 3/8 x 3/4 3/8 50 ft. 89J59 3/8 x 7/8 3/8 30 ft. 89J60 3/8 x 7/8 3/8 40 ft. 89J61 3/8 x 7/8 3/8 50 ft. 89J62 Unit Stand -Off Kit 94,145 NOTE - Extremes of operating range are plus 10% and minus 5% of line voltage. Refrigerant charge is sufficient for 15 ft. length of refrigerant lines. For longer line set requirements see the Installation Instructions for information about line set length and additional refrigerant charge required. z HACR type breaker or fuse. s Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. 4 Crankcase Heater and Freezestat are recommended with Low Ambient Kit. ML13KC1 11.5 to 5 Ton Air Conditioners I Page 7 SPECIFICATIONS NORTH REGION Size 042 048 060 Nominal Tonnage 3.5 4 5 Sound Rating Number dBA 76 78 80 Connections Liquid line (OD) - in. (Sweat) Suction line (OD) - in. 3/8 3/8 3/8 3/4 7/8 1-1/8 Compressor Type 1-Stage Scroll 1-Stage Scroll 1-Stage Scroll Refrigerant R-454B charge furnished 6 lbs. 2 oz. 7 lbs. 10 oz. 8 lbs. 8 oz. Indoor Unit Expansion Valve (TXV) 26Z71 26Z71 26Z72 Outdoor Net face area - ft.' Outer coil Coil Inner coil 21.00 16.33 21.00 - - - 16.33 20.25 Tube diameter - in. Rows Fins - in. 5/16 5/16 5/16 1 2 2 26 22 22 Outdoor HP Fan Diameter - in. Blades Cfm Rpm Watts 1/3 1/4 1/6 22 22 22 3 3 4 2985 2875 3250 825 825 845 150 160 280 Shipping Data - lbs. 195 215 218 ELECTRICAL DATA Line voltage data (Volts -Phase -Hz) 2 Maximum overcurrent protection (MOCP) amps 3 Minimum circuit ampacity (MCA) 208/230-1-60 208/230-1-60 208/230-1-60 35 40 50 21.2 24.3 31.3 Compressor Rated load amps Locked rotor amps 14.9 18.0 23.7 109 126 157 Fan Motor Full load amps Locked rotor amps 2.6 1.7 1.7 - - - 3.2 3.2 OPTIONAL CONTROLS - ORDER SEPARATELY E30 Smart Wi-Fi Thermostat 20A65 I Remote Outdoor Temperature Sensor X2658 OPTIONAL ACCESSORIES - ORDER SEPARATELY Compressor Copeland 27P59 Crankcase Heater LG 271.116 Factory Factory Factory Factory Compressor Hard Copeland 1OJ42 Start Kit LG 88M91 Compressor Low Ambient Cut -Off Switch 45F08 Compressor Sound Cover 18J42 Compressor Timed -Off Control 47J27 Freezestat 3/8 in. 93G35 Indoor Blower Off Delay Relay 58M81 Loss of Charge Switch Kit 84M23 4 Low Ambient Kit (Fan Cycling) 34M72 Refrigerant 3/8 x 7/8 3/8 30 ft. 89,160 Line Sets 3/8 x 7/8 3/8 40 ft. 89J61 Liquid x Suction OD 3/8 x 7/8 3/8 50 ft. 89J62 Insulation Thickness Length 3/8 x 1-1/8 3/8 50 ft. 73P91 Unit Stand -Off Kit 94J45 NOTE - Extremes of operating range are plus 10% and minus 5% of line voltage. Refrigerant charge is sufficient for 15 ft. length of refrigerant lines. For longer line set requirements see the Installation Instructions for information about line set length and additional refrigerant charge required. HACR type breaker or fuse. s Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Crankcase Heater and Freezestat are recommended with Low Ambient Kit. ML13KC1 11.5 to 5 Ton Air Conditioners I Page 8 DIMENSIONS - UNIT INLET AIR INLET 1!3" AIR INLET 4 AIR TOP VIEW 4-3/8 4-3/8 (111) 1.*— —� (111) 4-3/8 (111) / ) / o \o OPTIONAL UNIT INLET STAND-OFF KIT (4) C MPRESS R (Field Installed) � � � AIR COIL DRAIN OUTLETS/ (Around perimeter of base) / SUCTION LINE 6-3/8 \ CONNECTION (162) o LIQUID LINE CONNECTION 6-3/8 4-3/8 (162) (111) TOP VIEW BASE SECTION I I 2 (51) SIDE VIEW A OUTDOOR t DISCHARGE AIR COIL F COMPRESS SUCTION A LIQUID LI CONNECTI 2 OPTIONAL UNIT SIDE VIEW STANDOFF KIT (4) (FIELD INSTALLED) Size A Width and Depth B Height C inches mm inches mm inches mm 018 24-1/4 616 25-1/4 641 24-1/2 622 024 24-1/4 616 29-1/4 743 28-1/2 724 030 28-1/4 718 29-1/4 743 28-1/2 724 036 28-1/4 718 33-1/4 845 32-1/2 826 042 28-1/4 718 37-1/4 946 36-1/2 927 048 28-1/4 718 29-1/4 743 28-1/2 724 060 28-1/4 718 37-1/4 946 36-1/2 927 4-3/8 (111) 4-3/8 (111) ML13KC1 11.5 to 5 Ton Air Conditioners I Page 9 FIELD WIRING DISCONNECT 1 SWITCH _(By Others) J LENNOX AIR CONDITIONER THERMOSTAT I r DI SWITCHCT t_ — ( —on —_ J _(ByOthers) J INSTALLATION CLEARANCES F See NOTE See NOTES See NOTES SOUND DATA See OTES itrol Box LENNOX HEATING UNIT OR AIR HANDLER UNIT A -Two Wire Power (not furnished). See Indoor Unit Electrical Data B -Two Wire Power (not furnished). See Electrical Data C - Four Wire Low Voltage (not furnished). 18 ga. minimum D - Five Wire Low Voltage (not furnished). 18 ga. minimum All wiring must conform to NEC or CEC and local electrical codes. NOTES: • Service Clearance - 30 in. (762 mm) on one of the sides adjacent to the Control Box. • One of other three sides must be 36 in. (914 mm). • One of the two remaining sides may be 12 in. (305 mm). • The remaining side may be 6 in. (152 mm). • 48 in. (1219 mm) clearance required on top of unit • 24 in. (610 mm) required between two units Size Octave Band Sound Power Levels dBA, re 10-12 Watts Center Frequency - HZ 1 Sound Rating Number (dBA) 2 Estimated Sound Pressure Level at Distance From Unit (dBA at distance in ft.) 125 250 500 1000 2000 4000 8000 3 5 10 15 50 018 53 58.5 66.5 69.5 65 62.5 54.5 73 66 61 55 52 41 024 56 66 72 71 67 63 56.5 76 69 64 58 55 44 030 55 64.5 70.5 72.5 67.5 61 54 76 69 64 58 55 44 036 58 67.5 71.5 70.5 66.5 61.5 55 76 69 64 58 55 44 042 56 65 71 71.5 67.5 62 55 76 69 64 58 55 44 048 61.5 68 73.5 72.5 69 64 56.5 78 71 66 60 57 46 060 63.5 70 75 75 70.5 68 61 80 73 68 62 59 48 NOTE - the octave sound power data does not include tonal correction. 1 Tested according to AHRI Standard 270-2008 test conditions. 2 Estimated sound pressure level at distance based on AHRI Standard 275-2010 method for equipment located on the ground, roof, or on side of building wall with no adjacent reflective surface within 9.8 feet. Sound pressure levels will increase based on changes to assumptions. For other applications, refer to AHRI Standard 275. ML13KC1 11.5 to 5 Ton Air Conditioners I Page 10 TXV USAGE TXV SUBSTITUTION - R-454B All Lennox coils and air handlers are shipped with a factory installed TXV. In most cases, no substitution is needed. If a different size TXV is required, it will be listed in the "TXV SUBSTITUTION" table by size. The correct TXV must be ordered separately and field installed. Size I Order Number 018 I26Z70 024 I26Z70 030 I26Z70 036 I26Z70 042 I26Z71 048 I26Z71 060 I26Z72 AHRI STANDARD 210-240-2023 Standard Ratings relating to cooling or heating capacities shall be net values, including the effects of circulating -fan heat, but not including supplementary electric heat. Power input used for calculating efficiency shall be the Total Power. Standard Ratings of units which do not have indoor air - circulating fans furnished as part of the model, i.e., Coil - only System, shall be established by subtracting from the total cooling capacity 1,505 Btu/h per 1,000 SCFM, and by adding the same amount to the heating capacity for non - mobile -home, non -Space Constrained units. Total Power for both heating and cooling shall be increased by 441 W per 1,000 SCFM of indoor air circulated. A general guide for replacing the factory installed R-454B TXV if the indoor unit (coil/air handler) is larger or smaller than the outdoor unit. Outdoor Unit Indoor Unit Indoor TXV Furnished Indoor TXV Replacement Size Tons Size Tons 018 1.5 42 3.5 26Z71 26Z70 018 1.5 48 4 26Z71 26Z70 018 1.5 49 4 26Z71 26Z70 018 1.5 50/60 4/5 26Z71 26Z70 018 1.5 51/61 4/5 26Z71 26Z70 018 1.5 60 5 26Z72 26Z70 024 2 42 3.5 26Z71 26Z70 024 2 48 4 26Z71 26Z70 024 2 49 4 26Z71 26Z70 024 2 50/60 4/5 26Z71 26Z70 024 2 51/61 4/5 26Z71 26Z70 024 2 60 5 26Z72 26Z70 030 2.5 42 3.5 26Z71 26Z70 030 2.5 48 4 26Z71 26Z70 030 2.5 49 4 26Z71 26Z70 030 2.5 50/60 4/5 26Z71 26Z70 030 2.5 51/61 4/5 26Z71 26Z70 030 2.5 60 5 26Z72 26Z70 036 3 42 3.5 26Z71 26Z70 036 3 48 4 26Z71 26Z70 036 3 49 4 26Z71 26Z70 036 3 50/60 4/5 26Z71 26Z70 036 3 51/61 4/5 26Z71 26Z70 036 3 60 5 26Z72 26Z70 042 3.5 24 2 26Z70 26Z71 042 3.5 30 2.5 26Z70 26Z71 042 3.5 30/36 2.5/3 26Z70 26Z71 042 3.5 36 3 26Z70 26Z71 042 3.5 60 5 26Z72 26Z71 048 4 30/36 2.5/3 26Z70 26Z71 048 4 36 3 26Z70 26Z71 048 4 60 5 26Z72 26Z71 060 5 50/60 4/5 26Z71 26Z72 060 5 51/61 4/5 26Z71 26Z72 TXV Ranges: 26Z70 - 1.5 to 3 ton systems - Use on 3 ton (036) and lower systems. 26Z71 - 3.5-4 ton systems - Use on 4 ton (048) and down to 3.5 ton (042) systems. 26Z72 - 5 ton systems - Use on 5 ton (060) systems only. ML13KC1 11.5 to 5 Ton Air Conditioners I Page 11 LE--7 NNOX 0 ®® © ,/MfMBfR COMPANY Intertek Visit us at www.Lennox.com For the latest technical information, www.LennoxPros.com Contact us at 1-800-9-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. ©2024 Lennox Industries, Inc.