Lennox ou inverter compressor overcurrent manual.

Lennox ou inverter compressor overcurrent manual It doesn't appear to be defrosting correctly. If the unit must be lifted for service, rig unit by attaching • DC Inverter Control • Compressor Overcurrent Protection • Defrost Control Indoor Unit: MWHA009S4-1L • Pre-Heat Function • Auto Restart • Three Speed Fan • Flare Connections • Multi-Refrigerant Outlet • LED Readout • Wireless Remote Included PRODUCT WARRANTY 495822 (201909) ©2019 Lennox Industries, Inc. With options that regulate humidity levels and effectively eliminate contaminants, Lennox HVAC solutions create a healthier workspace for your team and customers. 6. compressor and outdoor fan keep running (fixed at rated frequency), and the indoor fan runs at high speed (80%). That can be caused by low voltage, an overcharged system, or an internal issue with the compressor. 82 1. 495824 (201909) ©2019 Lennox Industries, Inc. Bulletin No. First of all, the influence from the inverter side. 16 496044 (202312) ©2023 Lennox Industries, Inc. Scroll Compressor A specially designed compressor that works in a circular motion, as opposed to up-and-down piston action. Also for: Li012co-180p432, Li012hi-180p432, Li012ho-180p432, Li024ci-180p432, Li024co-180p432, Li024hi-180p432, Li024ho-180p432, Y8369, Y8370, Y8381, Y8382. Also for: El072xass, El090xasd, El120xasd, El150xasd, El180xasd, El240xasd. Sometimes, doing this may help. For installations of the SL28XCV unit with re-frigerant lines or coils previously charged with R410A and POE oil, Lennox recommends flushing the existing lines and coil with R410A refrigerant to remove excess POE oil that may be in the system. All open edges are sealed with a one-inch wide hook and loop fastening tape. 00 HSPF - 8. 3 17. 5 Compressor Input (amps) 6. 00 3 Tons Cooling Capacity - 36,000 Btuh When the AC runs continuously, specially on warmer days, it creates a lot of condensation. Apr 11, 2025 · Understanding Lennox Air Conditioner Components Lennox air conditioners consist of several key components that work together to cool your home efficiently. That condensation has to be evacuated constantly. • DC Inverter Control • Compressor Overcurrent Protection Pre-Charged (ft. The installer should clamp an amp meter on the compressor wire and verify whether the amp draw is exceeding 28 amps or not. Hail Guard Set (M9GARD24Q-1/24S70) • A Lennox communicating thermostat must be used in communicating applications. Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury. In all cases, setup is critical to ensure proper system operation. 7. 7 oz. 32 495983 (202305) ©2023 Lennox Industries, Inc. Offering industry-leading efficiencies of up to 26. Correct/tighten wiring according to the wiring diagram 2. Variable Capacity Scroll Compressor • Operates on a variable frequency determined by the DC Inverter Control to vary capacity based on the cooling or inverter reactor, 230v, 4kw contactor-spst (25fla/35res) ground lugs contactor-spst (35fla/40res) outdoor control inverter noise filter for 6kw inverter (208/240v, 60hz, current range 30a maximum, inductance 4. These parts require regular maintenance and can sometimes develop issues that affect performance. 2024 Lennox Industries Inc. Compressor Issues The compressor is the heart of a Lennox air conditioner. Optional electric heat is factory-or field-installed. The updated firmware stopped the 433 error code (Inverter Compressor Over Current). SUBMITTAL DATA – DUCTED MPC012S4S-1P – MMDB012S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP OUTDOOR DIMENSIONAL DRAWINGS - INCHES (MM) NOTE – Due to Lennox’ ongoing commitment to quality, Specifications, Ratings, and Dimensions are subject to change without notice and without incurring liability. 5, 10 hp (208/230V) 90W51 X X X X Drive Kits See Blower Data Tables for usage and selection Kit #1 535-725 rpm Factory O O Kit #2 710-965 rpm Factory O Kit #3 685-856 rpm Factory O O O O Kit #4 850-1045 rpm Factory O O O O Kit #5 945-1185 rpm Factory O O O O We have been an ABB Partner for over 20 years and are used to supporting clients with a variety of inverter-controlled applications. I only noticed it because it turned the unit off over the weekend. May 30, 2019 · If you find the right source, and then the right medicine, you can generally solve it. Page 95: Appendix SUBMITTAL DATA – CEILING/FLOOR MLB048S4S-1P – MCFA048S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP 495910 (202109) ©2021 Lennox Industries, Inc. Compressor Crankcase Heater Aug 16, 2024 · Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Discontinues compressor operation in case of abnormal operating conditions. LI012HI-210P432 air conditioner pdf manual download. Force cooling mode is preset to 75ºF (24ºC) and cannot be manually adjusted. LI012CI-180P432 air conditioner pdf manual download. Power supply wiring error: 1. 5kW to 45kW heat sections are avail - the compressor starting torque Compressor Timed-Off Control • Prevents compressor short-cycling • Allows time for suction and discharge pressure to equalize • Permits compressor start-up in an unloaded condition • Automatic reset • Five minute delay between compressor shut-off and start-up Low Ambient Kit (40°F) May 23, 2019 · If your home's central air conditioner has been running well and then suddenly stops working, it may be due to an overloaded compressor. • If the temperature is lower than 30 degree, the two-digit display will show “30”. Learn More Compressor short-cycle protection (5 min utes). The dealerships accessible on this Lennox Dealer Locator (this "Locator") are independent of Lennox International Inc. NOTE: When system receives signals, such as switch on, switch off, timer on, timer off, mode setting, fan speed setting, sleep mode setting and follow me Information contained in this manual is intended for use by qualified service technicians only. I get frequent OU Inverter Compressor Overcurrent (Alert Code: 433) errors and the heat pump shuts down. • In non-communicating applications, the Lennox ComfortSense® thermostat may be used, as well as other non-communicating thermostats. A 10-Year Extended Limited Warranty is available with product registration. Replace compressor: 8: Power Supply Input Phase Lost: 1. 4 lbs. If you need more schematics or ways to troubleshoot your Lennox AC unit, please leave a comment below and we will assist you. Range is 1. Compressor 11. (oz Compressor Crankcase Heater • Protects against refrigerant migration that can occur during low ambient operation • Factory Installed Compressor Sound Dampening System • Polyethylene compressor • 2 inch thick batt fiberglass insulation • All open edges sealed with one-inch wide hook and loop fastening tape CONTROLS DC Inverter Control Dec 6, 2022 · 1. Customer: New Lennox showing: OU compressor overcurrent (heat pump). EPA – poor indoor air quality (IAQ). 3/8 3/8 3/8 3/8 Number of rows 3 3 3 3 Fins per inch 20 20 20 20 Outdoor Coil Fans • DC Inverter Control • Compressor Overcurrent Protection • Base Pan Heater • Defrost Control 1/2 1/4 98 (30) 66 (20) 25 0. 210952 April 2022 SEER 17. SEER 16. 3 Tons Cooling Capacity - 36,000 Btuh Compressor – Five year limited warranty 495814 (202004) ©2020 Lennox Industries, Inc. 9 Locked Rotor Amps 93. 16 • Constant torque blower motor • Multi-position cabinet (upflow, downflow, horizontal) • Completely insulated with foil faced fiberglass insulation • Low leakage (less than 2%) cabinet SUBMITTAL DATA – WALL-MOUNTED MPB018S4S-1P – MWMA018S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP 495543 (201905) ©2019 Lennox Industries, Inc. 5 SEER, 23. 5 Compressor 2 Rated Load Amps 31. ) 0. Page 21 5-Filter Drier Unit The Model L rooftop unit uses an innovative unit controller and advanced variable-speed technology to maximize utility rebates and energy savings. 14 oz. Your underlying efficiency variable speed scroll compressor and the sec-ond circuit uses a fixed speed scroll compressor. : Outdoor Unit: LISH012000P431-C Indoor Unit: LICH4012180P431-C FEATURES IMAGE IMAGE Outdoor Unit Cat Number: Y9263 Indoor Unit Cat Number Information contained in this manual is intended for use by qualified service technicians only. COMPRESSOR Variable Frequency Rotary Compressor • Compressor features high efficiency operation • Balanced for reduced vibration and quiet operation • Brushless DC motor uses powerful Neodymium magnets, which are approximately 15-20 times stronger than ferrite magnets used in conventional AC compressors Compressor Crankcase Heater COMPRESSOR Variable Frequency Rotary Compressor • Compressor features high efficiency operation • Balanced for reduced vibration and quiet operation • Brushless DC motor uses powerful Neodymium magnets, which are approximately 15-20 times stronger than ferrite magnets used in conventional AC compressors Compressor Crankcase Heater SUBMITTAL DATA – DUCTED MPC048S4S-1P – MMDB048S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP 495930 (202305) ©2023 Lennox Industries, Inc. coils with one two stage scroll compressor and one single stage compressor. Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. 3PB/3WMB. Dallas, Texas, USA Page 1 THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. • DC Inverter Control • Compressor Overcurrent Protection • Base Pan Heater • Defrost Control 5/8 3/8 213 (65) 98 (30) 25 0. Inverter damage 3. If the temperature becomes excessively high, the compressor will be de-energized. (Lennox Variable Capacity Outdoor Units Only) This is how the system attempts to reach the discharge air temperature set point. 8 11. ft. 5. submittal data – wall-mounted mpb009s4s-1p – mwma009s4-3p single zone mini-split heat pump 495644 (202006) ©2020 lennox industries, inc. Looking for more information about your Lennox ® product? We’ve made it easy for you to find the resources you need, including product brochures and owner's manuals. 1. VFD Manual Bypass Kit 90W53 X X X X Drive Kits See Blower Data Tables for selection Kit #1 590-890 rpm Factory O O O O Kit #2 800-1105 rpm Factory O O O O Kit #3 795-1195 rpm Factory O O O O Kit #4 730-970 rpm Factory O O O O Kit #5 940-1200 rpm Factory O O O O Kit #6 1015-1300 rpm Factory O O O O Kit #10 900-1135 rpm Factory O O O O Compressor Overcurrent Protection • Overcurrent protection can result due to any of the following: • Ambient temperature is too high • Locked rotor on the compressor • Outdoor air is blocked or restricted Condenser High Temperature Protection • Condenser high temperature can occur due to any of the following conditions: • High • Compressor Overcurrent Protection • Base 3an +eater • Defrost &ontrol • Pre-Heat Function • Auto Restart • Three Selectable Fan Speeds • Flare Connections • LED Readout • Multi-Refrigerant Outlet • Wireless Remote Included Hail Guard Set (M9GARD23Q-1) Programmable Controller (M0STAT120N-1) Non-Programmable Controller COMPRESSOR Variable Frequency Rotary Compressor Twin rotary compressor features high efficiency operation. Polyvinyl ether (PVE) oil is used in the SL28XCV com-pressors. Your air conditioner is designed to withstand a certain amount of demand in specific conditions, and sometimes a variation of either one can lead to overload on the compressor, causing it to fail completely. Program Hold options allow user to override the program schedule as desired by time and date. 5kW through 22. 5kW to 45kW heat sections are avail- 495826 (202004) ©2020 Lennox Industries, Inc. Units also offer mechanical cooling down to 00F. Also for: Li012ho-210p432, Li018hi-210p432, Li018ho-210p432, Li024hi-210p432, Li024ho-210p432. Page 1 High ESP Air Handler OWNER'S MANUAL LENNOX A I R CO ND I T I O NE RS MO D E L: LIAH024-200U432 LIAH036-200U432 LIAH048-200U432 LIAH060-200U432 Thank you for selecting LENNOX air conditioners. Compressor/Parts Warranty All Merit models come with a 5-Year Limited Warranty on compressors and a 5-Year Limited Warranty on covered components. Compressor damage: 1. SUBMITTAL DATA – DUCTED MPC036S4S-1P – MMDB036S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP 495927 (202005) ©2022 Lennox Industries, Inc. (TP) • The display value should be between 30 and 129 degrees. Information contained in this manual is intended for use by qualified service technicians only. 5, 10 hp (460V and 575V) 90W52 X X X X 7. Units are designed to accept any of several different en-ergy management thermostat control systems with mini-mum field wiring. com View and Download Lennox LI012HI-210P432 service manual online. Remove clapboard Screw then remove the clapboard. Delivering effective temperature and humidity control, and efficient energy usage, Lennox heat pumps keep your home’s temperature exactly where you want it. Please read this manual carefully before operation and keep it for further reference. SUBMITTAL DATA – OUTDOOR UNIT MPC024S4M-1P MULTI-ZONE MINI-SPLIT HEAT PUMP495934 (202206) ©2022 Lennox Industries, Inc. Simply put, this rating measures how much energy a heating and cooling system uses to operate. Procedures outlined in this manual are presented as a recommendation only and do not super-sede or replace local or state codes. The following devices could prevent full system charge recovery into the outdoor unit: Outdoor unit’s high or low−pressure switches (if applicable) when tripped can cycle the compressor OFF. VFD Manual Bypass Kit 3, 5 hp (208/230V) 3, 5, 7. I'm still getting a 427 error code (Inverter DC Peak Fault) that causes the heat pump to shut down and the system to run on auxiliary heat only. The units work like an all-in-one cooling and heating system, and are perfectly suited to warmer climates. Real-time clock keeps time during power fail ures and automatically adjusts for daylight savings time and leap year. S. Select individual days or groups of days to set programming. 3mh inverter reactor, 230v, 6kw control panel for xp25-024 and -036 control panel for xp25-048 and -060 variable-capacity inverter VFD Manual Bypass Kit (for MSAV® equipped units) 3, 5, 7. compressor s4 high pressure switch tp hi ps c r o b4 fan k1-2 3 compressor contactor s40 hr1 crankcasethermostat crankcase heater rt36 liquid sensor lennox note-for use with copper conductors only. the unit will resume normal operation. Menu Example Value Description MODE HEATING System operation mode: OFF/COOLING /HEATING /MIX COOLING/MIX HEATING COMP 92+74HZ Main compressor speed + Sub compressor speed VOLTAGE 207V Input voltage STATUS RUNNING Current status. 6 lbs. 5 28 28 Tube diameter - in. Brand new system that has not impressed in the first two weeks. 7 Outdoor Fan View and Download Lennox ELA Series unit information online. SUBMITTAL DATA – CEILING/FLOOR MLB036S4S-1P – MCFA036S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP 495909 (202109) ©2021 Lennox Industries, Inc. 4 29. The crankcase heater is used to prevent refrigerant from mixing with compressor oil when the compressor is stopped. 211038 April 2024 Supersedes all previous versions SEER2 - up to 25. T901_O Inverter Fault – Compressor Overcurrent Compressor is pulling more current than allowed Compressor Shorted to Ground – Check resistance of windings to ground. February 2018 . When there is a clog, or blockage at the air circulation, due to an accumulation of dirt / blockage, or a dirty filter for example, the water cannot evacuate properly, and overflows at the drain pipes. 32 495977 (202305) ©2023 Lennox Industries, Inc. Explore Lennox comfort and energy-efficient solutions for heating and cooling your space. Upgrade your HVAC system with industry-leading solutions. If the unit must be lifted for service, rig unit by attaching 2 Maximum Overcurrent Protection (MOCP) amps 15 25 35 50 3 Minimum Circuit Ampacity (MCA) 11. 1 compressor liquid filter dryer service valve service valve suction pressure transducer crankcase heater thermostat (s40) high pressure switch compressor top cap switch (thermal) figure 3. The crankcase heater is controlled according to outdoor ambient temperature and the compressor on/off state. Refrigerant: R410A. General Note: Define the evaporator coil temperature T2 of the compressor just starts running as Tcool. 5 / SEER - up to 26. Page 13 ELECT RICA L DATA Model LHT302H5M Voltage - 60Hz 208/230V - 3 Ph 460V - 3 Ph 575V - 3 Ph Compressor 1 Rated Load Amps 46. 13 oz. 32 496048 (202312) ©2023 Lennox Industries, Inc. 0 in increments of 0. See unit nameplate. 210816 . 10 oz. 6 / SEER - up to 24. Balanced for reduced vibration and quiet operation. Learn how you can use SEER and SEER2 ratings to increase efficiency – and savings – in your home. Solenoid valve SV4: Returns oil to the compressor. SUBMITTAL DATA – WALL-MOUNTED MPB018S4S-1P – MWMA018S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP 495543 (202006) ©2020 Lennox Industries, Inc. View & download of more than 10657 Lennox PDF user manuals, service manuals, operating guides. When the compressor discharge temperature drops below 1&4°F (90°C). Compressor Type (number) Variable Capacity Scroll (1) Fixed Capacity Scroll (1) Outdoor Coils Net face area (total) - sq. If you can provide the model on the unit so I can grab a service manual , I will be able to The Home screen will display incoming voltage, mode of operation, compressor(s) frequency, and operation status. 495616 (201905) ©2019 Lennox Industries, Inc. Hail Guard Set 9GARD19Q-1/24M81)(M Non-Programmable Controller (M0STAT61Q-1) Programmable Controller (M0STAT120N-1) Non-Programmable Controller (M0STAT120L-1) Out of Stock at Your Nearby Stores. Multiple of these codes over days. Procedures outlined in this • Compressor Overcurrent Protection • Base 3an +eater • Defrost &ontrol • Pre-Heat Function • Auto Restart • Three Selectable Fan Speeds • Flare Connections • LED Readout • Multi-Refrigerant Outlet • Wireless Remote Included Hail Guard Set (M9GARD23Q-1/24M85) Non-Programmable Controller (M0STAT61Q-1) SUBMITTAL DATA – DUCTED MPC018S4S-1P – MMDB018S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP 495949 (202005) ©2022 Lennox Industries, Inc. 5 Outdoor Fan Motor - Full load amps 2. 8 22. VIII- Direct Drive Inverter Page 61 IX-Wiring and Operation Sequence Page 62 X-Decommissioning Page 71 The LGM092, 102, 120 and 150 units are configure to order units (CTO) with a wide selection of factory-in stalled options. efficiency variable speed scroll compressor and the sec-ond circuit uses a fixed speed scroll compressor. Remove compressor Remove 3 foot nuts on compressor, and then remove the compressor. ELXA Series air handlers pdf manual download. Units can operate from 0°F to 125°F. Units are available in 130,000, 180,000 • Compressor Overcurrent Protection Indoor Unit: 3WMB036S4-1P • Pre-Heat Function • Auto Restart • Three Speed Fan • Flare Connections • Multi-Refrigerant Outlet • LED Readout • Wireless Remote Included PRODUCT WARRANTY Compressor – Twelve year limited warranty* *Product registration required 495616 (202004) ©2020 Lennox • DC Inverter Control • Compressor Overcurrent Protection Pre-Charged (ft. 9 Locked Rotor Amps 335. Compressor Sound Dampening System A polyethylene compressor cover containing a 2 inch thick batt of fiberglass insulation for better sound dampening. 495478 (202101) ©2021 Lennox Industries, Inc. High voltage enters the compressor COMPRESSOR here. Air Conditioner, Furnace user manuals, operating guides & specifications. It pressurizes and circulates refrigerant through the system Compressor Overcurrent Protection • Overcurrent protection can result due to any of the following: • Ambient temperature is too high • Locked rotor on the compressor • Outdoor air is blocked or restricted Condenser High Temperature Protection • Condenser high temperature can occur due to any of the following conditions: • High COMPRESSOR Variable Frequency Rotary Compressor Twin rotary compressor features high efficiency operation. indoor dimensional drawings - inches (mm) • Tested with matching air conditioners and heat pump units in the Lennox Research Laboratory environmental test room in accordance with AHRI Standard 210/240-2023 • AHRI Certified system match-ups and expanded ratings, visit www. 3 IEER & 15 EER. Please check other cities’ zip/postal codes for same-day availability. 8 2. In the beginning eight minutes after the compressor starts up, if T2<Tcool-2°C does not keep continuous four seconds and compressor running Customer: I have an alert on my thermostat: "OU Inverter Communication Error" to the main control. Job: Engineer: Location: Architect: Schedule No. NOTE – Due to Lennox’ ongoing commitment to quality, Specifications, Ratings, and Dimensions are subject to change without notice and without incurring liability. (i. Optional electric heat is factory or field installed . Replace inverter 3. 32 Indoor Unit: MMA036SM4-1P SUBMITTAL DATA – Multi-Position AHU MPC036S4S-1P – MMA036S4-1P • Constant torque blower motor • Multi-position cabinet (upflow, downflow, horizontal) Jun 9, 2017 · LENNOX SERVICE MANUAL FOR ROOM AIR CONDITIONER (Inverter Split-Type) PDF is here. com SUBMITTAL DATA – CEILING/FLOOR MLB048S4S-1P – MCFA048S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP 495910 (202109) ©2021 Lennox Industries, Inc. Also for: Ela072s4s, Ela090s4d, Ela120s4d, Ela150s4d, Ela180s4d, Ela240s4d. Foot nuts Note: Protect the ports of discharge pipe and suction pipe to avoid foreign objects to enter it. Compressor – Five year limited warranty 495815 (202004) ©2020 Lennox Industries, Inc. Incorrect wiring between inverter and compressor 2. SUBMITTAL DATA – DUCTED MPC018S4S-1P – MMDB018S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP NOTE – Due to Lennox’ ongoing commitment to quality, Specifications, Ratings, and Dimensions are subject to change without notice and without incurring liability. (oz. Information contained in this manual is intended for use by Page 94 Service Manual Procedure Step 10. Field wiring for both communicating and non- COMPRESSOR Variable Frequency Rotary Compressor • Compressor features high efficiency operation • Balanced for reduced vibration and quiet operation • Brushless DC motor uses powerful Neodymium magnets, which are approximately 15-20 times stronger than ferrite magnets used in conventional AC compressors Compressor Crankcase Heater Lennox ® heat pumps are some of the most precise and efficient you can buy. All specifications are subject to change. How long has this issue been occurring with my thermostat? What steps have I taken so far? I'm having an awful time with my new SL25XPV heat pump. 5 kW heat sections are available for the LCH unit. 82 . Can you provide some guidance? I have a Comfort S30 model. Correct/tighten wiring according to the wiring diagram : 9: Software Overload: 1 SUBMITTAL DATA –WALL-MOUNTED MCA024S4S-1P - MWCA024S4-1P SINGLE ZONE MINI-SPLIT AIR CONDITIONER 495816 (202004) ©2020 Lennox Industries, Inc. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems. Electric heat operates in single stage depending on the kW input size. LennoxPros. Indoor Unit Expansion Valve (TXV) 26Z70 26Z70 26Z70 26Z70 26Z71 Compressor Timed-Off Control • Prevents compressor short-cycling • Allows time for suction and discharge pressure to equalize • Permits compressor start-up in an unloaded condition • Automatic reset • Five minute delay between compressor shut-off and start-up Low Ambient Kit (40°F) • Cycles the outdoor fan while allowing compressor 495953 (202305) ©2023 Lennox Industries, Inc. Common causes of inverter overcurrent on the inverter side are: Oct 20, 2021 · First of all, power cycle the inverter by de-energizing the contactor. 7 lbs. • Compressor is tolerant to the effects of slugging and contaminants. Opens once the compressor has run for 200 seconds and closes 600 seconds later and SUBMITTAL DATA – CEILING CASSETTE MLB048S4S-2P – MCFA048S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP OUTDOOR DIMENSIONAL DRAWINGS - INCHES (MM) NOTE – Due to Lennox’ ongoing commitment to quality, Specifications, Ratings, and Dimensions are subject to change without notice and without incurring liability. , compressor burn out). In this article we look at the 3 most common faults on inverters and how to fix them: Refer to Supply Air Inverter Start-Up section. 6 REQUIRED COMPONENTS - ORDER SEPARATE LY S30 Smart Wi-Fi Thermostat 19V30 •••• 4 Discharge Air Temperature Sensor 88K38 •••• COMPRESSOR Variable Frequency Rotary Compressor Twin rotary compressor features high efficiency operation. 5 lbs. Location: SUBMITTAL DATA – CASSETTE TYPE LISH012000P431-C - LICH4012180P431-C SINGLE ZONE INVERTER MINI-SPLIT HEAT PUMP Job: System Designation: Schedule No. It also appears that excessive frost is building up on the inside of the unit. Located on top of the compressor casing. 62 . • ®Integrated on the Lennox Communicating Control for 024 and 036 models, • Separate external inverter control for 048 and 060 models • The inverter reactor (mounted separately) adds inductance to the line between the inverter and the compressor to limit current rise and protect the compressor H CONTROLS Lennox® Communicating Control View and Download Lennox LI012CI-180P432 service manual online. Model L units are rated up to 22. Manual is applicable only to the following models – LNIV2610, LNIV3510, LNIV5010, LNIV6510. Compressor Crankcase Heater Feb 9, 2023 · Depending on the temperature measured, the compressor speed will be increased to meet the load or will continue to run at the existing speed. Brushless DC motor uses powerful Neodymium magnets, which are approximately 15-20 times stronger than ferrite magnets used in conventional AC compressors. Page 3 To Users Thank you for selecting LENNOX’s product • Tested with matching air conditioners and heat pump units in the Lennox Research Laboratory environmental test room in accordance with AHRI Standard 210/240-2023 • AHRI Certified system match-ups and expanded ratings, visit www. 5 20. 5 3PC/3WMC Mini-Split 3 Ton Single Zone Heat Pump System - R-410A - 60 Hz Bulletin No. OUTDOOR DIMENSIONAL DRAWINGS - INCHES (MM) NOTE – Due to Lennox’ ongoing commitment to quality, Specifications, Ratings, and Dimensions are subject to change without notice and without incurring liability. Improper installation, adjustment, Page 20 INVERTER WIRE ROUTING TRANSFORMER A192 INVERTER 208/230V INVERTER BOARD SHOWN FILTER BOARD W V U High voltage en ters the filter board here. 2 16. Improper installation, adjustment, COMPRESSOR Variable Frequency Rotary Compressor • Compressor features high efficiency operation • Balanced for reduced vibration and quiet operation • Brushless DC motor uses powerful Neodymium magnets, which are approximately 15-20 times stronger than ferrite magnets used in conventional AC compressors Compressor Crankcase Heater Compressor Overcurrent Protection • Overcurrent protection can result due to any of the following: • Ambient temperature is too high • Locked rotor on the compressor • Outdoor air is blocked or restricted Condenser High Temperature Protection • Condenser high temperature can occur due to any of the following conditions: • High If compressor discharge temperature rises above 98°C, SV2 opens and sprays a small amount of liquid refrigerant to cool the compressor. SV2 closes again once the discharge temperature has fallen below 85°C. Electric heat operates in single or multiple stages depending on the kW input size. Ser-vice equipment must be rated for R410A. 50 HSPF - 9. Operating pressures and pressure switch set-tings are significantly higher than R22 charged units. OU Inverter Compressor Overcurrent Notifications I have a 3 month old Lennox variable speed AC that is getting this error/alert. Improper installation, adjustment, SUBMITTAL DATA – OUTDOOR UNIT MLA036S4M-1P MULTI-ZONE MINI-SPLIT HEAT PUMP495463 (201703) ©2017 Lennox Industries, Inc. (including its affiliates, "Lennox"). Dew Point Adjustment • DC Inverter Control • Compressor Overcurrent Protection • Defrost Control • Pre-Heat Function • Auto Restart • Three Speed Fan • Flare Connections • Multi-Refrigerant Outlet • LED Readout • Wireless Remote Included All other covered components - Five year limited warranty Pre-Charged (ft. If this occurs, scrolls separate, allowing liquid or contaminants to be worked toward the center and discharged Compressor Crankcase Heater (041 through 060 Models) • Prevents migration of liquid refrigerant into compressor and ensures proper compressor lubrication •DC Inverter Control • Compressor Overcurrent Protection • Auto Restart • Three Speed Fan Flare Connections LED Readout • Multi-Refrigerant Outlet • Wireless Remote Included Pre-Charged (ft. AIR HANDLER UNITS. K 34 Compressor discharge temp. Hail Guard Set (M9GARD24Q-1/24S70) Non-Programmable Controller (M0STAT61Q-1) Programmable Controller (M0STAT120N-1) Non-Programmable Controller (M0STAT120L-1) blowers, an inverter-driven variable speed compressor, and a variable speed outdoor fan. Hail Guard Set (M9GARD19Q-1/24M81) COMPRESSOR Variable Frequency Rotary Compressor • Compressor features high efficiency operation • Balanced for reduced vibration and quiet operation • Brushless DC motor uses powerful Neodymium magnets, which are approximately 15-20 times stronger than ferrite magnets used in conventional AC compressors Compressor Crankcase Heater Use this method if the existing outdoor unit is equipped with manual shut−off valves, and you plan to use new HCFC−22 refrigerant to flush the system. Units are also designed for R410A refrigerant. When the motor cable is connected to the inverter and the motor, it is analyzed separately from the inverter side and the motor side. SUBMITTAL DATA – DUCTED MPB018S4S-1P – MMDB018S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP 495619 (202207) ©2022 Lennox Industries, Inc. Wire not secure on U, V, or W – Check connections. 50. Installation and service must be performed by a licensed professional HVAC installer or If you get an Error Code 433 on your Lennox HVAC system, this video will show you how to clear the error code and get your unit to restart. Learn More SUBMITTAL DATA – DUCTED MLA018S4S-1P – MMDB018S4-2P SINGLE ZONE MINI-SPLIT HEAT PUMP 495625 (202004) ©2020 Lennox Industries, Inc. Lennox advises not to make changes to this setting without first contacting Lennox technical support or Lennox field technical consultant. Mini-Split 3 Ton Single Zone Heat Pump System - R-410A - 60 Hz . 81 21 5. Compressor Type 1-Stage Scroll 1-Stage Scroll 1-Stage Scroll 1-Stage Scroll 1-Stage Scroll Refrigerant 1 R-454B charge furnished 4 lbs. : 18J04 • DC Inverter Compressor • DC ODU Motor • Golden Fin • Electronic Expansion Valve During heating operation, the inverter unit stops completely, whereas, the floor-standing unit also stops completely but the operations of the remote controller and 495616 (201905) ©2019 Lennox Industries, Inc. • Prevents compressor operation when outdoor temperature is below 35°F 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 • In conditions such as low voltage, kit may be required to increase the compressor starting torque MPC Mini-Split Multi-Zone Heat Pump Outdoor Units - R-410A - 60 Hz Form Number 211039 March 2025 Supersedes all previous versions Up to 5 Zones SEER2 - up to 24. : Date: System Designation: For: Reference Approval Review Construction FEATURES Outdoor Unit: LI012CO-210P432 CAT No. 00 SEER, Lennox air conditioners can help you save hundreds of dollars every year in utility costs. All information made available on this Locator is for general informational purposes only, and any reliance on such information is done at your own risk. 16 496045 (202312) ©2023 Lennox Industries, Inc. 32 • Constant torque blower motor • Multi-position cabinet (upflow, downflow, horizontal) • Completely insulated with foil faced fiberglass insulation • Low leakage (less than 2%) cabinet Elevate your business environment with Lennox HVAC solutions, addressing one of the top five environmental risks identified by the U. 0 to 15. [electric, Lennox SL25XPV] getting minor code OU Inverter Compressor Overcurrent, but only when it’s outdoor temps less than 20F. Default is 3. 5 21. Wiring to compressor or molded plug damaged – Inspect compressor wiring harness. refer to unit rating plate for minimum circuit ampacity and maximum overcurrent protection size refer to compressor in unit for actual terminal • DC Inverter Control • Compressor Overcurrent Protection • Defrost Control Indoor Unit: MWHA009S4-1P • Pre Heat Function • Auto Restart • Three Selectable Fan Speeds • Flare Connections • LED Readout • Wireless Remote Included PRODUCT WARRANTY 495823 (201909) ©2019 Lennox Industries, Inc. • DC Inverter Control • Compressor Overcurrent Protection • Defrost Control • Pre-Heat Function • Auto Restart • Three Speed Fan • Flare Connections • Multi-Refrigerant Outlet • LED Readout • Wireless Remote Included Pre-Charged (ft. ) 25 Additional Charge Per Ft. Simply narrow your search using the options below. Learn more Lennox The Variable Capacity Compressor and DC Inverter Control is an integrated system that operates together to reduce overall energy usage when compared to conventional air conditioners. ELA Series air handlers pdf manual download. component locations elxcv-060 (scroll compressor model) COMPRESSOR Variable Frequency Rotary Compressor • Compressor features high efficiency operation • Balanced for reduced vibration and quiet operation • Brushless DC motor uses powerful Neodymium magnets, which are approximately 15-20 times stronger than ferrite magnets used in conventional AC compressors Compressor Crankcase Heater View and Download Lennox ELXA Series unit information online. Learn More; SEER. 0. De-energizing the contactor should be done for 2 minutes and then energize it again. REACTOR FIGURE 8 3-Crankcase Heaters HR1, HR2 INVERTER HEAT SINK All LGM units use insertion type heaters. e. . Compressor Crankcase Heater MPC Mini-Split Single Zone Heat Pump Outdoor Units - R-410A - 60 Hz Bulletin No. 5 HP VFD Bypass - No Overload 37G64 X 10 HP - With Overload 37G65 X Drive Kits See Blower Data Tables for usage and selection Kit #1 535-725 rpm Factory O Kit #2 710-965 rpm Factory O Kit #3 685-856 rpm Factory O O Kit #4 850-1045 rpm Factory O O Kit #5 945-1185 rpm Factory O O Delivering perfectly precise comfort control, Lennox air conditioners continually make small adjustments in fan speed and cooling output to hold your temperature exactly where you want it. 32 Indoor Unit: MMA048SM4-1P SUBMITTAL DATA – Multi-Position AHU MPC048S4S-1P – MMA048S4-1P • Constant torque blower motor • Multi-position cabinet (upflow, downflow, horizontal) • DC Inverter Control • Compressor Overcurrent Protection • Base Pan Heater • Defrost Control 5/8 3/8 213 (65) 98 (30) 25 0. 20. • DC Inverter Control • Compressor Overcurrent Protection • Base Pan Heater • Defrost Control 5/8 3/8 164 (50) 82 (25) 25 0. zycz mtgr klf grhwt ovb dffz irz osoqr qgrya nenww