quality High Temperature Heat Pump & Co2 Heat Pump factory

An air source heat pump (ASHP) is a highly efficient, eco-friendly solution for year-round home comfort, providing heating in the winter and cooling in the summer. However, due to their heavier operational loads and extended run times, they require regular maintenance.   Neglecting ASHP maintenance might seem like a way to save time and money in the short term, but it ultimately leads to a host of problems. Here are the primary risks associated with ignoring maintenance needs:   1. Sharp Drop in Energy Efficiency and Skyrocketing Electricity Bills The most immediate consequence of neglecting maintenance is a decline in energy efficiency.   1) Restricted Airflow: Dirty air filters and clogged outdoor coils force the system to work harder to intake air and transfer heat.   2) Refrigerant Issues: Insufficient refrigerant—often caused by undetected minor leaks—severely impairs the system's ability to absorb and release heat.   3) The Result: A poorly maintained ASHP may consume 20% to 30% more energy to achieve the same level of comfort. Any energy costs you "saved" by skipping maintenance will quickly be offset by rising monthly electricity bills. 2. Frequent Breakdowns and High Repair Costs Regular maintenance allows technicians to identify and resolve minor issues before they escalate into catastrophic failures. Without it, small problems accumulate:   1) Loose electrical connections can cause control boards to burn out.   2) Slightly worn capacitors can lead to compressor failure.   3) Inadequate lubrication can cause motor bearings to seize.   Once these components fail, you face steep emergency repair costs. Even worse, if the system breaks down during the sweltering heat of summer or the freezing cold of winter, you might have to wait days for necessary parts and a technician, leaving you without heating or cooling in the meantime.   3. Significantly Reduced System Lifespan A well-maintained ASHP can last 15 to 20 years (sometimes even longer). Because ASHPs operate year-round—functioning as air conditioners in the summer and heaters in the winter—they experience roughly twice the wear and tear of a standard air conditioner. If maintenance is neglected, the excessive strain placed on the compressor and other moving parts can cause the system to burn out in as little as 7 to 10 years, forcing a premature replacement that costs thousands of dollars.   4. Voiding the Manufacturer's Warranty Many homeowners are completely unaware of this risk. Most major air source heat pump manufacturers require proof of annual professional maintenance to keep the equipment warranty valid.   If your compressor or a major component fails during the fourth year of a 10-year warranty, the manufacturer will likely ask for maintenance records. If you cannot provide them, the warranty will be voided, and you will have to pay the full cost of replacement parts and labor out of pocket.   5. Reduced Indoor Comfort and Air Quality A poorly functioning heat pump will struggle to maintain consistent temperature and humidity levels.   1) Uneven Heating and Cooling: You may notice temperature fluctuations throughout your home and frequent system starts and stops (short cycling).   2) Poor Air Quality: If filters are never changed and the indoor evaporator coil is never cleaned, the system will circulate dust, pet dander, pollen, and potentially mold spores throughout the house.   3) Unpleasant Odors: Moisture and debris accumulating inside the unit can foster mold growth, causing a musty smell whenever the system starts up.   6. Safety Hazards and Property Damage Although heat pumps are generally very safe, severe neglect can lead to genuine safety hazards:   1) Electrical Fires: Worn wiring, corroded contacts, or rodent damage inside the outdoor unit can cause arcing or short circuits, creating a fire risk.   2) Water Damage: In winter, air source heat pumps rely on a defrost cycle to melt ice accumulating on the outdoor coil. If the defrost sensor or reversing valve malfunctions and isn't addressed, the coil can freeze into a solid block of ice; as it melts, water may overflow the drain pan and seep into the home's foundation or walls.   3) Refrigerant Leaks: Undetected leaks not only reduce system efficiency but can also release environmentally harmful refrigerant into the atmosphere. The Bottom Line   Treating heat pump maintenance as an "optional expense" is ultimately counterproductive. While annual routine maintenance typically costs only a few hundred dollars, it ensures lower energy bills, preserves warranty coverage, maintains home comfort, and extends the system's lifespan.

No, continuous operation does not inherently shorten the lifespan of an air source heat pump. In fact, modern heat pumps are designed for stable, long-term operation, and continuous running is often more beneficial for the system than other operating modes.   Here is a detailed analysis of how continuous operation affects your heat pump and the factors that influence its lifespan: 1. Continuous Operation vs. Short-Cycling 1) Continuous operation is normal and efficient: Heat pumps are designed to run steadily for extended periods to maintain a stable indoor temperature. * Continuous operation within normal parameters does not harm the system's performance or lifespan.   2) Short-cycling is the real enemy: Frequent, brief start-stop cycles (short-cycling) place immense mechanical and electrical stress on the compressor—the most expensive and critical component of the system. * The stress caused by frequent starting and stopping is far more likely to lead to premature wear and tear than steady, continuous operation.   3) Inverter technology helps: Modern inverter-driven air source heat pumps can adjust the compressor speed (e.g., operating at 35% to 100% power). This "soft-start, continuous-run" mode allows the system to precisely match heating or cooling loads, thereby reducing wear and extending the system's lifespan. 2. Issues with Continuous Operation While steady operation is generally fine, it is a red flag if the heat pump runs continuously at maximum power yet fails to reach the temperature set on the thermostat. This can shorten the system's lifespan and is usually caused by the following factors:   1) Improper sizing: An undersized unit will run incessantly in a futile attempt to heat or cool the space, wearing out components and causing energy costs to skyrocket.   Conversely, oversized equipment leads to frequent cycling (starting and stopping), which also causes damage.   2) Maintenance issues: Clogged air filters, low refrigerant levels, blocked outdoor coils, or a stuck defrost cycle can force the system to run continuously to compensate for lost efficiency.   3) Extreme weather: In bitterly cold weather, a air source heat pump may need to operate continuously. While cold-climate heat pumps can handle these conditions, relying on electric resistance heating (auxiliary/emergency heat) for extended periods when the main heat pump is struggling increases the load on the entire system.   3. How to Maximize the Lifespan of Your Heat Pump A well-maintained air source heat pump typically lasts 15 to 20 years.   To ensure you meet or exceed this benchmark:   1) Ensure proper sizing and installation: A professional should perform a Manual J load calculation to ensure the equipment perfectly matches your home's heating and cooling needs.   2) Maintain a stable temperature: Use a programmable or smart thermostat to maintain a consistent baseline temperature. Avoid drastic, sudden adjustments to the thermostat, as forcing the system to "catch up" creates unnecessary strain.   3) Perform regular maintenance: Change or clean air filters every 1 to 3 months, keep the area around the outdoor unit free of debris (maintaining at least 2 feet of clearance), and schedule annual professional inspections to check refrigerant levels, electrical connections, and coils.   Summary: Do not panic if your heat pump runs for extended periods, especially during moderate or extreme weather conditions; it is operating exactly as designed. The goal is to avoid the mechanical stress caused by frequent starting and stopping, meaning that steady, continuous operation is actually a sign of a healthy, well-functioning system.

1. How to use an air source heat pump efficiently air source heat pumps perform best when maintaining a comfortable, constant indoor temperature of 18–20°C. Avoid significant fluctuations in indoor temperature, as this can lead to condensation buildup and mold growth.   To prevent sudden spikes in indoor temperature, keep kitchen and bathroom doors closed, especially while cooking or bathing. Avoid placing large furniture in front of radiators, as this obstructs heat distribution throughout the room.   Maintaining a constant indoor temperature also saves money. Generally, running the heat pump at a steady temperature is more economical than relying on "boost" functions.   Understand how your heat pump works and how long it takes to bring your home to a comfortable temperature. You can program the system to start early so your home is warm when needed.   If your air source heat pump also provides hot water, an immersion heater can serve as a backup if the heat pump's output is insufficient. Remember to switch off the immersion heater when it is no longer needed; leaving it on for extended periods consumes a lot of energy and can lead to higher electricity bills. 2. Key points for managing your air source heat pump: * Do 1) Heat your home to a comfortable 18–20°C. The system is designed to provide even heating throughout your home. 2) Keep your air source heat pump running 24 hours a day, especially during cold weather. 3) If your air source heat pump provides hot water, run the system continuously throughout the year. 4) Keep kitchen and bathroom doors closed while cooking or bathing to prevent sudden temperature spikes. 5) Familiarize yourself with the heat pump's controls and learn how to use the system to heat your home comfortably.   * Don't 1) Allow indoor temperatures to fluctuate significantly; try to avoid letting the temperature get too high or too low. 2) Turn off the air source heat pump; it is designed to run continuously, especially in cold weather. 3) Place large furniture in front of radiators, as this blocks heat circulation within the home.   3. What is an air source heat pump? An air source heat pump is a heating system that provides warmth by extracting heat from the outside air. It uses this heat to warm your home and supply hot water. It operates on the same principle as a refrigerator, which absorbs heat to keep food cool.   4. How does an air source heat pump work? 1) air source heat pumps can deliver heat to your home steadily and consistently at lower temperatures over longer periods. This allows for more efficient operation and helps reduce your costs. 2) air source heat pumps operate at lower temperatures than traditional central heating systems. Consequently, radiators may not feel as hot to the touch as you might expect. 3) To operate efficiently, they may run for longer periods than you anticipate. In cold weather, they are designed to operate 24 hours a day. 4) If your air source heat pump provides both hot water and central heating, it will operate year-round.   Electricity Costs air source heat pumps run on standard electricity tariffs. Leomon recommends checking rates with your electricity supplier to ensure you are getting a competitive price.

It is very common for air source heat pumps to stop working or enter "lockout" mode following a power outage. This is usually because the sudden loss of power—and the voltage surges that often occur when power is restored—can trip safety circuit breakers, blow internal fuses, or cause system computer errors.   Below is a step-by-step guide to troubleshooting and safely resetting your heat pump.   1. Check the power supply (circuit breakers and isolators) Before assuming the heat pump is damaged, ensure it is actually receiving power.   1) Check the main fuse box/consumer unit: Look for any tripped circuit breakers. If you find a tripped breaker (usually in a middle position or showing a red indicator), switch it fully off and then back on again.   2) Check the local isolator switch: Most air source heat pumps have a dedicated pull-out isolator or circuit breaker, usually located near the indoor unit (e.g., in a utility room or cupboard) or on an external wall near the outdoor unit. Ensure it is in the "On" position.   3) Check the fuse: If your system is connected to a fused connection unit (a small switch containing a replaceable fuse), a power surge upon restoration could have blown the fuse. You may need to unscrew the cover to check if the internal fuse has blown. 2. Perform a "hard reset" (Crucial step) Heat pumps contain sophisticated computers and compressors. When power returns, the system often enters a safety lockout mode to protect itself. You usually need to reset the system manually.   1) Completely cut power to the heat pump using the local isolator switch (not just the thermostat).   2) Wait at least 5 to 10 minutes. This is very important; it allows the internal compressor pressure to equalize and gives the computer memory a chance to fully clear its data.   3) Switch the isolator back on.   4) Listen for the system starting up. You should hear relays clicking, and eventually, the outdoor fan and compressor should start running.   3. Check the thermostat and controller When power is restored, a surge current may reset the controller to its factory default settings. 1) Check the display screen on the indoor thermostat or controller. Are the time and date correct?   2) Check if the heating schedule/program has been cleared. If the system is in "Off" or "Holiday Mode" due to a settings reset, it will not start.   3) If the screen is blank, check if the thermostat needs new batteries or if the corresponding circuit breaker in the fuse box has tripped.   4. Look for error codes If the system has power but is not running, check the display panel on the indoor unit (or sometimes the outdoor unit).   1) Are there any flashing indicator lights or error codes displayed (e.g., E01, F22, or a specific number of LED flashes)?   2) Note down the code and look it up in the user manual, or search online for the code along with your air source heat pump's brand and model. This will help you identify the exact cause of the safety lockout (e.g., low water pressure, sensor failure).   5. Check system pressure (if applicable) If your heat pump is connected to underfloor heating or radiators, a power outage may have caused the system pressure to drop (or a pump failure could have led to a loss of pressure).   1) Check the pressure gauge on the indoor unit or the gauge on the boiler/manifold.   2) The pressure should typically be between 1.0 and 1.5 bar. If it falls below 0.8 bar, the heat pump will refuse to start to prevent damage. You may need to top up the pressure using the filling loop.   6. Consider power surge damage If you have completed all the steps above but the unit still fails to start entirely (no lights, no display, no sound), an internal component may have been damaged by a power surge when the electricity supply was restored.   1) Blown internal fuse: There may be a high-capacity internal fuse on the main circuit board (PCB) that has blown to protect the system.   2) PCB damage: The main circuit board may have been fried by the power surge.   3) Compressor damage: In rare cases, a power surge can damage the compressor or its internal overload protector.   When to Contact a Professional If you have checked the circuit breaker, performed a 10-minute hard reset, and confirmed that the water pressure is normal, yet the system still fails to start (or displays an error code that cannot be cleared), you should contact an HVAC technician or your air source heat pump installer.   Note: If there is a power outage lasting several hours during freezing winter weather, water inside the piping or the outdoor unit may freeze. If you suspect this has occurred, do not force the system to run, as this could cause the heat exchanger to rupture. Allow it to thaw naturally or seek professional assistance.

In the right application, heat pumps can be a cost-effective alternative.   Electric air-source heat pumps serve as excellent replacements for furnace systems that run on propane or heating oil. They are also a cost-effective alternative to electric heating methods such as electric furnaces, baseboard heaters, and wall-mounted heaters.   How Heat Pumps Work In the summer, an air source heat pump acts like an air conditioner, absorbing heat from indoor air and releasing it outdoors. In the winter, the system reverses operation, extracting heat from the outdoor air and delivering it indoors.   Heat pumps consist primarily of two components: the condenser (or compressor unit), which circulates refrigerant through the system, and the air handler, which distributes the conditioned air. Most heat pumps are split systems, with the condenser located outdoors and the air handler indoors. Packaged systems integrate both components into a single outdoor unit. Heat pumps typically distribute heated or cooled air via a ductwork system. Advantages of Air-Source Heat Pumps If your old furnace system includes air conditioning, replacing both the heating and cooling units with a single heat pump system can lead to significant cost savings. If you currently use window air conditioners or an older central air conditioning system, switching to an air source heat pump can lower your summer energy bills.   Beyond reducing energy costs, heat pumps eliminate the risk of carbon monoxide poisoning and the issues associated with on-site storage of propane or heating oil.   During colder months, as outdoor temperatures drop, the heat pump must work harder to extract heat. When the outdoor temperature falls below a certain level, the system switches to resistance heating mode—which consumes more electricity and operates similarly to a toaster or space heater.   Selection and Installation Units are rated based on their heating efficiency (HSPF) and cooling efficiency (SEER). Heating efficiency is measured by the Heating Seasonal Performance Factor (HSPF), while cooling efficiency is measured by the Seasonal Energy Efficiency Ratio (SEER). Standard heat pumps have minimum ratings of 14 SEER and 8.2 HSPF. A simple way to compare different products is to look for the ENERGY STAR® label. This label indicates that the unit has a SEER rating of at least 15 and an HSPF rating of at least 8.5. Visit energystar.gov for more information on equipment, installation, and qualified contractors.   How much can a heat pump save you on energy costs? It depends on the size and energy efficiency of your home, local energy prices, and the climate. You can find online calculators to help estimate potential savings. A study based on sample data showed that in South Carolina, heating costs using a new heat pump—calculated based on national average fuel prices—were less than half the cost of heating with a standard propane furnace or electric resistance heater.   An energy auditor can provide more precise savings estimates and offer advice on selecting specific brands and equipment sizes. More importantly, an energy auditor can suggest other ways to improve comfort or reduce energy consumption, such as duct sealing or improving building envelope insulation.   Local HVAC dealers with experience in heat pumps can be very helpful. Since many heat pumps are installed incorrectly, be sure to ask how they ensure a high-quality installation. Contact your local electric cooperative for recommendations; they may even offer rebates, free energy audits, or discounts for electric heating systems.

On November 1, 2025, Leomon successfully shipped 30 sets of R32 air source heat pumps (18kW each) to Canada. The shipment process was strictly monitored, and all products were securely packaged to ensure safe and undamaged transport. Our R32 air source heat pumps are designed and manufactured in full compliance with international heating standards. They feature excellent rapid heating, intelligent control, and automatic defrosting, ensuring stable operation under various outdoor temperature conditions.   This shipment further solidifies Leomon's growing position in the North American heating market and reflects the company's commitment to high-quality manufacturing, on-time delivery, and global partnerships.   Leomon will continue to provide reliable air source heat pumps to customers worldwide through advanced production technology and rigorous quality control.

On September 9, 2025, Leomon successfully delivered 10 sets of 45kW air source heat pumps to Italy. This delivery further demonstrates Leomon's continued commitment to the Italian residential heating market and its strong supply chain capabilities. Precision Products Designed for Specific Needs The 45kW air source heat pumps delivered this time were specifically designed and manufactured to meet the needs of residential heating. These products strictly adhere to EU standards, offering superior durability and reliability to ensure they meet the stringent requirements of local residential heating and hot water services.   Reliable Capability to Serve the Global Market As one of China's leading air source heat pump manufacturers, Leomon possesses mature production and export capabilities. With its strong production capacity and export-standard wooden packaging, the company ensures that its products are safely delivered to customers worldwide. Leomon's heat pump products have been exported to more than 30 countries and regions, including the United States, Germany, South Africa, and India, accumulating extensive experience in global transportation.   About Leomon Leomon offers a variety of heat pumps, including air source heat pumps, pool heat pumps, high-temperature heat pumps, and CO2 heat pumps. The company's heat pumps range from 10kW to 150kW and hold comprehensive certifications such as CE, ErP, Keymark, MCS, CB, and SAA. Leomon is committed to providing high-quality, highly reliable products and customized solutions to customers worldwide.

In May, Leomon completed the delivery of 15 sets of 6kW air source heat pumps to the Netherlands. This delivery marks another milestone in Leomon's ongoing collaboration with international heating operators and demonstrates the company's ability to provide large-scale, reliable supply solutions for demanding residential and commercial heating projects.   From design to delivery, the 6kW air source heat pumps underwent a complete industrial process on Leomon's production line. Advanced welding technology enhances the reliability of the unit system, potentially preventing refrigerant leaks. Axial fans are available, offering powerful airflow while maintaining low operating noise. Rigorous quality control procedures, including material verification, dimensional inspection, low-temperature testing, and noise testing, ensure that each air source heat pump meets stringent performance requirements before leaving the factory. To ensure the integrity of the products during transportation, the logistics arrangements for this shipment were carefully coordinated. Each air source heat pump was properly packaged to prevent corrosion and deformation and loaded strictly according to operating procedures. Leomon's supply chain team worked closely with logistics partners to optimize shipping routes and schedules, ensuring the safe and timely arrival of the air source heat pumps to support residential heating and hot water needs in the Netherlands.   This delivery will directly support local residential heating and hot water needs, helping to improve heating efficiency and reduce carbon emissions. For Dutch heating operators, replacing existing boilers with 6kW air source heat pumps means better heating stability, more efficient energy use, and longer maintenance intervals—all crucial for both residential and commercial heating.   Leomon's export business spans numerous international markets, including the United States, South Africa, Mexico, Turkey, India, the Netherlands, Kenya, Algeria, Mauritania, Iran, Brazil, Australia, Bangladesh, and Ethiopia. With extensive experience, Leomon can tailor technical and logistical solutions to different climatic conditions while strictly adhering to relevant standards and operational requirements.   Leomon thanks its partners and customers in the Netherlands for their trust and looks forward to continuing technical cooperation and providing after-sales support. For information on specifications, power, or future orders, please contact the Leomon sales team – we are ready to provide you with customized air source heat pump solutions to meet your project needs.

Recently, Leomon completed the production and shipment of another 10 ultra-quiet 10kW air source heat pumps, which have been successfully delivered to Denmark. This model of air source heat pump is renowned for its superior quiet operation and intelligent control, and is widely used in various residential and commercial heating and hot water supply applications, enjoying high recognition from customers in the European market. During the production process, Leomon strictly controls every aspect, including raw materials, components, inspection, and packaging, ensuring that all products meet international export standards. All air source heat pumps undergo comprehensive quality testing to guarantee customers receive stable and reliable products.   This latest shipment demonstrates the continued trust of overseas customers in Leomon's products and services, and lays a solid foundation for future cooperation. With the growing global demand for high-performance residential heating equipment, Leomon will continue to uphold its professionalism and focused attitude, driving Chinese manufacturing onto the world stage.

On February 15, 2025, Leomon successfully delivered 36 sets of 12kW air source heat pumps to the United States. This delivery marks another significant step forward in Leomon's efforts to expand its position in the international heating and hot water equipment market.   The 12kW air source heat pump is a key product for Leomon, renowned for its energy efficiency, intelligent control, and low-temperature heating. These air source heat pumps are designed to meet the stringent requirements of modern heating systems, ensuring safe and efficient home heating. This shipment to the US underscores the growing demand for high-quality heating equipment in the North American market and reflects Leomon's commitment to providing reliable products to customers worldwide. Leomon has become a trusted supplier in the heating industry, renowned for its innovation and quality. The company possesses advanced production facilities and rigorous quality control processes to ensure that every product meets the highest standards. The 12kW air source heat pump is no exception; it underwent extensive testing and certification before being approved for international export.   This export to the United States is part of Leomon's overall strategy to strengthen its position in the global market. The company has consistently collaborated with international partners and participated in industry exhibitions to showcase its products and capabilities. The successful delivery of the 12kW air source heat pump fully demonstrates Leomon's ability to meet customer needs and adapt to the evolving demands of the rail industry.   As Leomon continues to expand its global business, the company remains committed to innovation, quality, and customer satisfaction. This delivery of 36 sets of 12kW air source heat pumps to the United States marks a significant milestone for Leomon in its pursuit of a leading position in the international heating equipment market.