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Yes. Aurashu’s Integrated Low-Temperature Heating Modular Units can be widely customized to meet diverse application needs in residential, commercial, and industrial heating, cooling, and domestic hot-water systems. Because projects vary greatly in climate, load characteristics, installation conditions, energy strategies, and control requirements, Aurashu offers multi-dimensional engineering-level customization options. These custom configurations ensure maximum performance, higher efficiency, longer service life, and smoother integration with existing building systems.1. Capacity & Modular Configuration CustomizationAurashu supports flexible capacity expansion using a highly scalable modular architecture. Units can be customized in:Single-module capacity sizingMulti-module parallel configurationN+1 or N+N redundancy designLoad-based module sequencing logicThis ensures precise matching of project heat-load curves, avoids oversizing or undersizing, and supports future expansion without redesigning the entire system.2. Compressor Type & Performance CustomizationDifferent project requirements—especially extremely cold regions, variable load operation, or energy-saving goals—require different compressor technologies. Aurashu provides options such as:Inverter scroll compressorsEVI low-temperature scroll compressorsHigh-efficiency fixed-speed modulesHybrid module combinations (EVI + inverter)These options enable improved part-load efficiency, wider operating temperature range, and lower energy consumption under variable conditions.3. Heat Exchanger CustomizationAurashu offers tailored heat exchanger configurations depending on water quality, application scenes, and thermal performance requirements. Customization includes:Tube material selection (copper, enhanced copper, stainless steel)Anti-corrosion coatingsEnlarged heat-exchange surface areaLow-temperature heat-transfer optimizationThis ensures stable and reliable output both in severe cold and in high-humidity environments.4. Control System & Communication Protocol CustomizationTo integrate with complex building or industrial systems, Aurashu supports:Custom BMS/EMS communication protocols (Modbus, BACnet, KNX, etc.)Optimized multi-module algorithm logicLoad prediction & adaptive controlCustom user dashboards, alarms, and monitoring parametersAdvanced control customization greatly enhances system stability, energy savings, and intelligent fault prevention.5. Operating Temperature Range CustomizationFor regions with harsher conditions (e.g., −35°C or lower), Aurashu can adjust:Refrigerant typeCompressor configurationHeat exchanger sizeFrosting/defrosting logicThese ensure the system maintains reliable heating output even under severe winter climates or high-altitude low-pressure environments.6. Hydronic System CustomizationAurashu supports customization of water-side components according to project design:Built-in vs. external water pumpsSingle pump / dual pump configurationsHigh-head pump customization for tall buildingsDifferent flow rates & water pipe interface sizesThis ensures compatibility with central heating loops, floor heating, fan coil networks, and industrial process systems.7. Structural & Installation CustomizationDifferent projects require special installation conditions or special structural forms. Aurashu supports:Compact frame customizationSide discharge / top discharge configurationsAnti-corrosion housing for coastal regionsLow-noise or ultra-low-noise customizationVibration isolation and seismic reinforcement optionsThese provide greater flexibility in tight mechanical rooms, rooftops, or noise-sensitive environments.8. Hot Water & Energy Strategy CustomizationAurashu can configure units for:Heating + Cooling + Domestic Hot Water (tri-supply)Hot water priority modeHigh-temperature hot-water output (up to 60–65°C)Energy-optimized seasonal operating modesSolar-assisted or hybrid energy integrationThis ensures best energy utilization and operational efficiency across different applications.9. Water Quality & Filtration CustomizationBecause water quality significantly affects system life and efficiency, Aurashu supports special customization such as:Enhanced corrosion-resistant heat exchangersHigh-filtration water strainersWater softening/pre-treatment compatibilityCustom alarms for water-quality monitoringThese maximize long-term reliability and reduce maintenance costs.10. Full Engineering Customization PackagesAurashu provides complete engineering-level customization for large commercial and industrial projects, including:System design optimizationPiping layout adaptationCommissioning customizationDocumentation, export standards, and certificationsThese ensure seamless integration and smooth operation throughout the entire lifecycle.

Water quality is a critical factor influencing the performance, efficiency, reliability, and service life of Aurashu’s Integrated Low-Temperature Heating Modular Units. Because these systems rely on stable heat exchange between the refrigerant circuit and the water-side loop (for heating, cooling, or domestic hot water), maintaining proper water quality ensures consistent operation, reduced maintenance, and long-term durability. Poor water conditions—including scaling, corrosion, sediment buildup, and microbiological growth—can significantly impair the unit’s thermal performance and increase energy consumption.1. Importance of Water Quality in Aurashu Modular UnitsAurashu’s modular units use high-performance plate heat exchangers or brazed plate exchangers with narrow channels. While these designs maximize heat transfer efficiency, they are sensitive to water contaminants. Even a small amount of scale or rust can reduce heat transfer, lower system efficiency, increase operating pressure, and cause compressor overload.Maintaining correct water quality ensures:Higher heat transfer efficiencyStable outlet temperatures and reliable comfort performanceReduced compressor and pump energy consumptionExtended equipment lifespan (10–15+ years)Lower maintenance frequency and downtime2. Key Water Quality Requirements(1) Hardness & Scaling ControlHard water causes mineral deposition (primarily calcium and magnesium) inside heat exchangers—one of the biggest causes of capacity loss.Aurashu recommends:Total hardness ≤ 100 mg/LUse softened water or anti-scaling treatmentPeriodic descaling for high-hardness regionsScaling of even 1 mm can reduce heat transfer by 10–15%, significantly raising operating costs.(2) Corrosion PreventionCorrosion causes metal deterioration, leaks, and exchanger damage.To minimize corrosion:Maintain pH between 7.0 and 9.0 (depending on system materials)Control chloride and sulfate ions within standardsAdd corrosion inhibitors when neededUse stainless-steel-friendly water treatment for plate heat exchangersStainless steel, copper, and brazed plates require balanced chemistry to avoid pitting corrosion.(3) Suspended Solids & Sediment ControlSediment, rust particles, and sand can block heat exchanger channels.Aurashu recommends:Suspended solids ≤ 20 mg/LInstall Y-strainers or mesh filters on the return lineUse automatic or magnetic filters for industrial loopsRegular flushing is recommended for older building pipelines.(4) Microbiological ControlBacteria, algae, and slime lead to biological fouling, which reduces heat transfer and may cause odor or corrosion.Use biocides if microbiological contamination is detectedEnsure circulation loops are closed to minimize biological growth(5) Anti-freezing Protection (Cold-Climate Operation)In extremely low outdoor temperatures, some systems require antifreeze (glycol mixture) to avoid freezing inside the water loop.Aurashu recommends:Ethylene glycol or propylene glycol solutions (10–35%)Avoid excessive glycol concentration to prevent viscosity-related performance loss3. Recommended Water Treatment SystemTo ensure long-term system stability, Aurashu advises using:Softening or anti-scaling devices (for hard water areas)Closed-loop water treatment with corrosion/scale inhibitorsMulti-stage filtration (mesh filter + Y-filter + magnetic dirt separator)Automatic dosing system (for inhibitors or biocides)Periodic water-quality testing (every 6–12 months)4. Consequences of Poor Water QualityIgnoring water quality requirements may lead to:Reduced heating/cooling capacityHigher energy costs (5–25% increase)Compressor overload alarmsHeat exchanger blockageCorrosion and leakageShortened equipment lifeIn severe cases, exchanger replacement may be required—expensive and avoidable.5. Aurashu’s SupportAurashu provides:Pre-installation water quality evaluationTailored water treatment recommendationsLong-term maintenance plansSmart monitoring options for large systemsBy ensuring proper water quality, users can maximize the efficiency and reliability of Aurashu’s integrated modular heating units.

Aurashu’s Integrated Low-Temperature Heating Modular Unit offers significant installation advantages compared with traditional centralized heating systems, making it ideal for both new projects and renovation applications. The modular architecture, compact footprint, and standardized connection interfaces allow rapid on-site deployment with minimal disruption.First, the modular design enables flexible capacity planning. Each module operates independently, and multiple modules can be combined to achieve the required heating, cooling, or domestic hot-water capacity. This eliminates the need for oversized equipment and supports step-by-step expansion as project demand grows. It also simplifies logistics—small modules are easier to transport, lift, and position even in restricted spaces.Second, the system features a compact layout and integrated components, including compressors, heat exchangers, controls, and essential safety devices. This reduces the need for additional external pipelines, electrical cabinets, or auxiliary equipment. Installation teams only need to connect the water system, power supply, and communication lines, significantly cutting installation time and labor cost.Third, Aurashu modules support parallel hydraulic design and standardized water connections, allowing quick coupling of modules with minimal engineering work. The factory-tested refrigerant circuits eliminate the need for on-site refrigerant charging or vacuum operations, improving safety and reducing technical difficulty.Fourth, installation is simplified by intelligent control integration. The master–slave communication network automatically recognizes new modules, balancing load distribution and enabling N+1 redundancy. No complex programming is required during commissioning, and the system can be operational rapidly after installation.Finally, the air-source configuration removes the need for boiler rooms, chimneys, fuel storage, or gas pipelines. This makes the system exceptionally suitable for rooftop installation, narrow machinery rooms, and retrofit buildings where traditional heating systems are difficult to accommodate. In snowy, humid, or extremely cold regions, the optimized frosting–defrosting design ensures stable outdoor operation without special structural requirements.Overall, Aurashu’s modular units offer fast installation, flexible expansion, safer construction, lower labor costs, and simplified commissioning—making them a highly efficient choice for commercial buildings, residential communities, industrial heating, and district energy projects.

Yes, Aurashu’s Integrated Low-Temperature Heating Modular Unit fully supports modular installation, and this design is one of the core advantages of the system. Modular architecture significantly improves flexibility, scalability, construction convenience, and long-term operational reliability. By integrating advanced EVI low-temperature compressors, high-efficiency heat exchangers, unified intelligent control, and standardized hydraulic/piping interfaces, the system enables fast deployment, phased investment, and precise capacity matching for projects of various sizes.From an engineering perspective, modular installation means each unit functions as an independent heating and cooling module, capable of operating alone or in synchronized coordination with multiple units. For small applications, a single module can meet basic heating or cooling demand. For medium and large commercial projects, multiple modules can be combined—typically 2–16 units—to form a centralized, high-capacity system without requiring a large mechanical room or complicated construction.Aurashu applies a “plug-and-run” modular strategy: factory-tested modules are pre-configured with optimized refrigerant circuits, electronic expansion valves, and control parameters. Once delivered onsite, installers only need to connect water pipes, power supply, and communication cables. This approach dramatically shortens installation time, lowers labor cost, and minimizes commissioning errors.Modular design also solves a major challenge in cold-climate heat pump operation—capacity decay and load fluctuation. With multi-module intelligent scheduling, the controller automatically adjusts each module’s output based on real-time building load. When heating demand is low, only one or two modules run at partial load to ensure efficiency; when demand peaks, all modules start in sequence to deliver full capacity. The built-in balancing algorithm distributes operating hours evenly among modules, reducing mechanical wear and extending service life.In addition, modular installation enhances redundancy and operational stability. If one module requires maintenance, the remaining modules continue operating without interrupting heating or cooling supply. This N+1 backup capability is important for hospitals, data centers, hotels, schools, and industrial facilities where continuous operation is essential.Aurashu further improves modular compatibility by adopting unified unit dimensions, standardized anchor points, and matching water-side connections. Modules can be installed side-by-side or stacked (depending on model), enabling flexible adaptation to rooftop, outdoor yard, or equipment platform layouts. For decentralized heating or renovation projects, modules can be delivered and installed in phases, allowing customers to expand capacity with minimal additional construction cost.With support for centralized BMS integration, RS485 communication, remote diagnostics, and cloud monitoring, multiple modules behave like a single, intelligent system. Operators can view system status, module load rates, energy consumption, and operational data in real time, ensuring efficient management.Overall, Aurashu’s modular installation solution provides unmatched flexibility, easy expansion, stable performance, and superior lifecycle cost advantages, making it ideal for residential communities, commercial complexes, industrial plants, schools, hotels, and cold-climate district heating networks.

Aurashu’s integrated low-temperature heating modular units are engineered for a wide range of commercial, industrial, and residential applications that require stable performance in cold, humid, or highly variable climates. Thanks to advanced inverter scroll or EVI scroll compressor technology, intelligent multi-module coordination, efficient heat exchangers, and flexible capacity configuration, these units support both heating and cooling with exceptional reliability, making them suitable for projects with stringent comfort, efficiency, and operational demands.1. Commercial BuildingsThese units are widely applied in large-scale commercial buildings where stable indoor temperature and high efficiency are priorities. Typical applications include:Office buildingsShopping malls and retail complexesHotels and resortsHospitals and medical facilitiesIn such environments, the system provides low-temperature heating during winter, comfortable cooling in summer, and stable year-round climate control. Intelligent load modulation allows the system to match fluctuating occupancy levels, ensuring high efficiency and reduced operation cost.2. Residential and Multi-Housing ProjectsFor residential districts in cold climates, particularly where air-source heat pumps must operate under –20°C or lower, Aurashu modular units deliver dependable heating, domestic hot water, and optional cooling. Suitable applications include:Apartment complexesVillas or high-end residential communitiesMixed-use residential-commercial buildingsThe modular form factor makes installation flexible even in limited space, while noise-optimized design ensures quiet operation suitable for residential zones.3. Industrial FacilitiesAurashu modular units also meet the needs of industrial processes that rely on stable low-temperature heating or cooling. Common examples include:Manufacturing plantsElectronics and semiconductor facilitiesFood processing and refrigeration environmentsWarehouses and logistics centersIndustrial applications benefit from precise temperature control, high reliability under continuous operation, and scalable system capacity through multi-module expansion.4. Educational, Cultural & Government BuildingsPublic-sector facilities require sustainable, cost-effective heating solutions that comply with modern efficiency standards. These heat pump systems are widely used in:Schools and universitiesLibraries and museumsGovernment buildingsCommunity centersLong service life, low operating noise, and easy maintenance align well with public-sector expectations and long-term investment plans.5. Cold-Climate Regions & High-Humidity ClimatesAurashu’s EVI low-temperature technology and optimized frost-resistant design make the units suitable for:Northern cold regions (down to –35°C ambient)Coastal, rainy, or high-humidity areasMountainous or high-altitude zonesThe system continues operating even in severe frost conditions, maintaining heat output through enhanced vapor injection and intelligent defrost strategies.6. District Heating & Central Energy SystemsFor cities upgrading traditional boiler systems or expanding clean-energy heating networks, these units are ideal for:District heating pipelinesCentralized heat pump energy stationsCampus-wide heating and cooling systemsTheir modular architecture allows gradual capacity scaling—important for large infrastructure projects that must balance cost, reliability, and energy efficiency.7. Commercial Hot Water & Heat Recovery ProjectsThe units can also serve applications that require large volumes of sanitary hot water or integrated heat recovery:Hotels and resortsGyms and recreation centersSwimming pool heatingRestaurants and central kitchensOptional high-temperature configurations meet domestic hot-water output requirements efficiently, reducing reliance on boilers.Why These Applications Work WellAurashu’s modular units excel in these scenarios due to:Flexible capacity (10%–100% modulation)Multi-module redundancy for uninterrupted operationLow ambient heating performance (EVI technology)Compact installation footprintLower operating cost vs. boilers or electric heatersSmart BMS integration for unified controlOverall, the integrated low-temperature modular heat pump is a universal, high-efficiency solution suitable for environments that demand stable heating, cooling, and hot water in a compact, scalable, energy-saving package.

Aurashu’s Integrated Low-Temperature Heating Modular Units use advanced compressor technologies specifically engineered to maintain stable heating capacity under extremely cold ambient temperatures. Because low-temperature air-source heat pumps face significant challenges—such as reduced refrigerant evaporation pressure, increased frost formation, and higher compression ratios—the selection and optimization of the compressor directly determine the unit’s efficiency, reliability, and long-term operating cost.1. Enhanced Vapor Injection (EVI) Scroll CompressorsThe primary compressor type used in most Aurashu low-temperature heating modular units is the EVI scroll compressor. EVI technology introduces a secondary vapor injection cycle to increase mass flow, boost discharge temperature stability, and strengthen heating output even at –25°C to –35°C ambient conditions.Benefits include:Higher heating capacity in cold climates compared to standard scroll compressorsImproved COP due to optimized compression ratioReduced discharge temperature stress on key componentsStronger frost resistance thanks to stable refrigerant circulationSmooth, low-noise operation ideal for modular systemsEVI scroll compressors are the best combination of performance, efficiency, and cost for modular low-temperature heat pump applications.2. Inverter (Variable-Speed) Scroll CompressorsFor projects requiring superior part-load performance or ultra-precise temperature control, Aurashu integrates DC inverter scroll compressors. These compressors adjust speed continuously to match actual heating or cooling demand.Key advantages:30–50% energy savings at part loadFewer start–stop cycles, prolonging compressor lifespanMore stable supply water temperature, essential for radiant heating or fan-coil systemsLower seasonal operating cost (SCOP/SEER improvement)Aurashu often combines inverter compressors with EVI design to ensure both high efficiency and strong low-temperature heating capability.3. Twin-Rotary Compressors (Option Based on Capacity)In specific small-to-medium capacity modules, twin-rotary compressors may be used. They provide smoother rotation and lower vibration, making them suitable for residential and light-commercial modular applications.Advantages:Very quiet operationHigh stability at low speedsGood efficiency across broad temperature rangesThough not as powerful at extreme cold as EVI scroll types, they offer excellent comfort and energy reduction for milder climates.4. Semi-Hermetic or Hermetic Scroll Compressors (Optional for Large Modules)For certain high-capacity modular configurations, Aurashu offers heavy-duty scroll or semi-hermetic compressor options. These are designed for:Higher pressure loadLonger running cyclesStronger mechanical durabilityThey are typically paired with optimized heat exchangers and advanced electronic expansion valves for maximum heating output under demanding conditions.5. Multi-Module Compressor CoordinationA key advantage of Aurashu’s modular architecture is intelligent compressor scheduling across modules.System logic provides:Balanced runtime for all compressorsOptimized defrost sequencingStaged or variable output across multiple modulesIncreased redundancy and reliabilityEven if one compressor fails, the unit continues operating, ensuring uninterrupted heating during cold seasons.6. Refrigerant Compatibility and Low-GWP OptionsAurashu compressors support multiple refrigerants depending on project requirements:R410A for strong low-temperature capacity and stabilityR32 for higher efficiency and lower environmental impactOther low-GWP refrigerants (optional) for future complianceCompressor design is selected specifically to match refrigerant behavior under cold-climate heating cycles.7. Why Aurashu Selects These Compressor TypesAurashu’s design philosophy focuses on maximum reliability, efficiency, and cold-climate performance, which is why the chosen compressor types offer:Proven durability in sub-zero environmentsLong operating life and low maintenance needsHigh energy efficiency at both full and part loadExcellent adaptability when multiple modules operate togetherThese compressor selections ensure that Aurashu’s Integrated Low-Temperature Heating Modular Units consistently deliver heating even under harsh climates, making them suitable for commercial buildings, residential projects, industrial facilities, and multi-block heating systems.

An Integrated Low-Temperature Heating Modular Unit is an advanced air-source heat pump system engineered to deliver stable, high-efficiency heating in cold and fluctuating climate conditions. Unlike conventional heat pumps that experience rapid performance degradation at low outdoor temperatures, this modular unit uses enhanced vapor injection (EVI) compressors, optimized low-temperature refrigerant circuits, and high-efficiency heat exchangers to maintain strong heating capacity even when ambient temperatures fall to –35°C.The term “modular” refers to the system’s scalable architecture. Each module operates as an independent heat pump, and multiple modules can be interconnected to form a larger centralized heating system. This offers outstanding flexibility for commercial buildings, industrial facilities, residential communities, hotels, schools, hospitals, and district heating networks. Modules can be added, removed, or serviced without shutting down the entire system, significantly improving reliability and operational continuity.Aurashu integrates smart control algorithms that automatically balance module load, optimize COP in real time, and manage defrosting cycles to minimize heat loss in snowy or humid climates. Intelligent group coordination ensures that only the necessary modules run at partial loads—reducing energy consumption, lowering operating cost, and extending equipment lifespan.In addition to heating, the integrated unit generally supports cooling and domestic hot water, making it a multifunctional HVAC solution. The system leverages environmentally friendly refrigerants, low-noise fan motors, and structural anti-frost design for improved durability. Aurashu’s engineering also includes tailored coil treatments, hydrophilic fin surfaces, advanced defrost logic, and weather-resistant housing to enhance performance in harsh environments.Overall, an Integrated Low-Temperature Heating Modular Unit is designed for customers seeking stable performance, high energy efficiency, modular scalability, and year-round comfort. With Aurashu’s engineering capabilities, each system can be customized to meet specific climate, load, installation, and building-management requirements—ensuring dependable long-term operation in modern commercial and residential heating projects.

Aurashu’s Integrated Low-Temperature Heating Modular Unit is specifically engineered for harsh and moisture-rich environments, making it highly suitable for snowy, icy, and high-humidity climates. Its performance advantages come from a combination of EVI low-temperature compressor technology, optimized hydrophilic-coated heat exchangers, intelligent defrosting algorithms, and modular redundancy, all of which ensure stable operation even under severe winter conditions or periods of heavy moisture exposure.In snowy regions, heat pump systems often struggle due to frost accumulation on outdoor heat exchangers. Aurashu addresses this issue through enhanced vapor injection (EVI) to maintain strong heating output at extremely low ambient temperatures, typically as low as –35°C. The unit incorporates multi-sensor frost-detection logic and smart reverse-cycle defrosting, minimizing frost buildup and shortening defrost cycles. This ensures higher seasonal heating efficiency and prevents heat-loss interruptions during peak demand.In high-humidity climates, heat exchangers are more prone to condensation, icing, and corrosion. Aurashu’s units utilize anti-corrosion fin coatings, large surface-area evaporators, and optimized airflow design to maintain effective heat transfer despite moisture saturation. The system’s waterproof electrical protection, IP-rated components, and moisture-resistant enclosure support long service life in coastal regions, rainy seasons, and areas with frequent fog or monsoon conditions.The modular configuration further enhances reliability. Even when one module undergoes defrosting or encounters temporary moisture-related performance reduction, the remaining modules continue operating, ensuring uninterrupted heating for residential, commercial, or industrial projects. Intelligent load distribution ensures each module operates within optimal thresholds, preventing overload and prolonging system life.Overall, Aurashu’s system is engineered for environmental resilience, high efficiency, and long-term durability, making it an excellent choice for regions with snow, frost, humidity, or rapidly changing weather.

Modular design in Aurashu's Integrated Low-Temperature Heating Modular Units provides significant technical, operational, and economic advantages for commercial, industrial, and residential HVAC systems. The concept involves combining multiple standardized heating modules into a unified system, allowing capacity to be expanded, maintained, or optimized with exceptional flexibility.One of the primary advantages is scalability. With a modular architecture, system capacity can be increased simply by adding additional modules, enabling phased investment and easier adaptation to future load growth. This is particularly beneficial for buildings that undergo renovation, occupancy changes, or operational expansion. Instead of replacing a full unit, Aurashu systems allow incremental upgrades while maintaining system continuity.Another key strength is partial-load efficiency. In real-world applications, HVAC systems operate at part load most of the time. Modular systems dynamically adjust the number of active modules based on real-time demand, significantly reducing energy consumption. Aurashu’s intelligent control platform distributes load intelligently across all modules to maintain optimal COP, ensuring high energy efficiency even under fluctuating conditions.Redundancy and reliability are also enhanced. With multiple modules running in parallel, the system can continue operating even if one module requires maintenance. This N+1 redundancy greatly reduces downtime, ensuring continuous heating in low-temperature climates where reliability is essential. Aurashu integrates self-diagnostic functions, fault isolation, and automatic performance balancing, further improving operational stability.The design also provides installation and transportation advantages. Individual modules are compact, easier to transport, and can be placed in constrained mechanical spaces where single large units cannot fit. This makes Aurashu modular systems ideal for retrofits and decentralized heating applications in dense urban areas.From a maintenance perspective, modular design simplifies service procedures. Each module can be isolated for inspection, cleaning, or repair without shutting down the entire system. Combined with Aurashu’s smart monitoring platform, technicians can identify anomalies, adjust parameters, or perform predictive maintenance based on real-time data.Another key benefit is flexible system configuration. Modules can be arranged side-by-side, stacked, or distributed across zones depending on site layout and heating needs. In advanced applications, modules can serve independent heating circuits or operate in mixed modes—heating, cooling, and domestic hot water—based on building demand.Finally, modular design supports high seasonal efficiency. Through digital control harmonization, heat exchanger optimization, and balanced load distribution, Aurashu systems improve performance under various climate conditions, especially in extremely cold regions where stable heat pump operation is critical.In summary, Aurashu’s modular design enhances scalability, efficiency, reliability, flexibility, maintainability, and long-term operational value, making it a superior solution for modern HVAC engineering projects.

The operating temperature range of an Integrated Low-Temperature Heating Modular Unit depends on its compressor technology, system architecture, and defrosting strategy, especially when designed for harsh winter environments. Aurashu’s integrated low-temperature heating modular units are engineered to maintain stable capacity output even under extreme ambient conditions.Using enhanced vapor injection (EVI) compressors, high-area heat exchangers, optimized refrigerant distribution, and intelligent vapor–liquid management, the system ensures reliable and efficient performance across a wide temperature span. For heating mode, Aurashu units typically operate effectively from –35°C to +35°C ambient, ensuring consistent heating output in cold climates. In cooling mode, the system generally functions across –10°C to +48°C ambient, supporting applications in both residential and commercial buildings.The unit maintains stable heating performance under ultra-low temperatures by using multi-stage throttling, intelligent frost prediction, and high-efficiency defrost cycles, reducing energy loss during continuous operation. Heat output is preserved through wide-range inverter control, allowing the system to regulate compressor speed and maintain high COP even when outdoor temperatures drop sharply.At higher ambient temperatures, Aurashu’s micro-channel heat exchangers and optimized refrigerant circuits improve heat rejection efficiency, protecting the compressor from thermal overload and extending system lifespan. Furthermore, the modular architecture allows multiple units to operate in rotation or cascade mode, ensuring a broader working envelope and operational redundancy.Overall, the wide operating temperature range ensures that the Integrated Low-Temperature Heating Modular Unit performs reliably in diverse climates—ultra-cold northern regions, temperate zones, or hot environments—making it suitable for district heating, commercial HVAC, industrial processes, and residential comfort applications where year-round stability is essential.

An Integrated Low-Temperature Heating Modular Unit, often referred to as an integrated air-source heat pump for low-temperature environments, is a highly efficient modular heating system designed to provide stable heating, cooling, and domestic hot water in cold to extremely cold climates. Unlike traditional boiler systems or standard heat pumps, this type of unit is engineered with advanced low-ambient technology, enabling reliable operation even when outdoor temperatures drop to –20°C, –30°C, or lower, depending on model configuration.1. Core Functional ConceptThis unit extracts heat energy from the outdoor air using an advanced refrigeration cycle and delivers it into buildings through hot water or air systems. Its low-temperature technology optimizes refrigerant flow, compressor operation, and heat-exchanger efficiency, ensuring continuous heating performance in harsh winter conditions. Aurashu’s solution integrates R&D-grade control strategies, allowing the system to maintain stable outlet-water temperatures and high COP despite low ambient temperatures.2. Modular ArchitectureThe system adopts a modular design, allowing several units to be combined into a single heating network:Modules can be added incrementally according to capacity needs.Each module operates independently but under unified intelligent control.The system supports N+1 redundancy, ensuring uninterrupted heating even if one module needs maintenance.This architecture provides excellent scalability for residential communities, commercial buildings, hotels, schools, factories, and district heating systems.3. Low-Temperature Heating TechnologyAurashu integrates multiple advanced features to guarantee high efficiency and reliable heating in cold climates:EVI (Enhanced Vapor Injection) Scroll or Rotary CompressorEnhances heating capacity at low ambient temperatures.Large-surface multi-row fin evaporatorsImprove heat absorption from cold outdoor air.Intelligent defrost algorithmReduces energy waste and prevents frost buildup while ensuring continuous heating.High-efficiency plate or tube-in-tube heat exchangersAchieve stable hot-water temperatures even when the outdoor temperature fluctuates.Low-GWP refrigerants (R410A/R32/R454B options)Deliver higher efficiency while meeting environmental requirements.4. Fully Integrated SystemThe unit combines multiple subsystems in one compact, factory-assembled package:Integrated compressor moduleIntegrated hydraulic module (water pump, valves, sensors optional)Intelligent control centerSafety and protection functionsOptional buffer tank and expansion tank configurationsThis full integration simplifies installation and reduces engineering work for construction projects.5. Energy Efficiency AdvantagesAurashu low-temperature modular heat pumps provide:High COP under part-load conditions due to DC variable-speed compressors and fansReduced operating costs compared to electric boilers or diesel heatingLower carbon emissions, aligning with current building sustainability trendsEfficient modulation based on building loads through smart control6. Application FlexibilityThe unit is suitable for:Residential district heatingCommercial complexes and office buildingsIndustrial workshopsHotels and hospitality projectsRenovation/replacement of old boiler systemsRural heating modernizationSnow-melting and low-temperature floor heating systemsModules can be configured according to required heating capacity, temperature range, space availability, and building type.7. Intelligent Control & MonitoringAurashu’s smart control platform offers:Multi-module coordinationAdaptive load matchingEnergy consumption monitoringRemote cloud control (optional)Fault prediction and maintenance remindersThis ensures stable operation, lower downtime, and simplified system management.8. Reliable Performance in Harsh ConditionsWith advanced engineering, anti-freezing protections, and durable materials, the system maintains dependable performance even in areas with long winters and low outdoor temperatures. The modular structure also facilitates easy maintenance, rapid installation, and long service life.

Maintenance for Aurashu falling film and flooded water-cooled chillers is essential to ensure long-term efficiency, stable operation, and protection of key components. Because these chiller types rely on high-performance heat-exchange surfaces and precise refrigerant distribution, proper routine servicing directly affects cooling capacity, energy consumption, and equipment lifespan.Regular heat-exchanger maintenance is one of the most important tasks. For falling film evaporators, technicians must ensure that the refrigerant distribution tray and spray nozzles remain clean and free of blockages so that an even thin-film coating can form on the tube bundle. For flooded evaporators, maintaining correct liquid levels and checking for oil accumulation inside the heat-exchange chamber are critical to sustaining effective heat-transfer performance.Water-side cleaning must be performed at scheduled intervals to remove scale, sediment, and biological growth from the condenser tubes. Aurashu strongly recommends integrating a proper water-treatment program—including chemical dosing, filtration, corrosion inhibition, and periodic system flushing—to protect both falling film and flooded systems from efficiency losses caused by poor water quality.Routine refrigerant system inspections include checking for leaks, verifying refrigerant charge, monitoring oil quality, and ensuring proper superheat/subcooling levels. Compressors—centrifugal, screw, or hybrid configurations used in Aurashu systems—should be inspected for vibration, lubrication condition, bearing status, and motor performance.The control system requires periodic calibration of sensors, verification of safety protections, update of control logic, and testing of variable-frequency drives (VFDs) when applied to pumps or compressors. Electrical components, power connections, and starters should be inspected for overheating, wear, or loose terminals.Cooling tower and pump maintenance includes cleaning drift eliminators, checking fan motors, lubricating bearings, verifying pump head and flow, and confirming that tower performance remains aligned with chiller heat-rejection requirements.Finally, Aurashu recommends professional annual performance evaluations, which include chiller efficiency testing, vibration analysis, thermodynamic performance logging, and preventive replacement of critical components. With proper maintenance, Aurashu falling film and flooded chillers deliver long-term reliability, high efficiency, and stable operation even in demanding industrial and commercial applications.

Selecting the cooling tower and pumps correctly is essential to ensure the performance, efficiency, and long-term reliability of Aurashu falling-film and flooded water-cooled chiller systems. Because these chillers rely on high-precision heat exchange at the evaporator and condenser, the supporting hydronic equipment must match both the thermal load and the operating characteristics of the chiller.For cooling towers, the key factors include heat rejection capacity, approach temperature, water flow rate, ambient wet-bulb temperature, and tower configuration. Falling-film and flooded chillers typically operate at lower condensing temperatures for higher energy efficiency, so the cooling tower must provide stable performance even under varying loads. Proper tower sizing prevents excessive condensing pressure, reduces compressor power consumption, and ensures optimal seasonal energy efficiency. Aurashu typically recommends selecting towers with an approach of 3–5°C, high-efficiency fill media, corrosion-resistant structure, and drift eliminators to protect water quality and system durability.Pump selection must consider system head, flow stability, variable flow compatibility, and energy efficiency. For condenser pumps, stable flow is critical to maintain consistent condensing temperature and avoid tube scaling or insufficient heat rejection. For chilled-water pumps, especially in large central cooling plants, variable-speed pumps can significantly reduce energy consumption under partial loads. Aurashu systems support optimized pump selection through advanced controls that manage flow rate, water temperature differential, and pump sequencing.Other important considerations include water treatment system capacity, piping design, air elimination, expansion tanks, and control integration. The cooling tower and pumps must be matched to the chiller’s evaporator/condenser water quality requirements, especially for falling-film evaporators where surface wetting uniformity is essential for efficient heat transfer. Proper selection reduces fouling risk, enhances heat transfer stability, and extends the service life of core components.Aurashu provides professional engineering support for cooling tower and pump selection, including thermal calculations, system layout guidance, and recommended equipment specifications. Through accurate integration of chiller, tower, and pump systems, Aurashu ensures the entire plant operates with high reliability, low energy consumption, and long-term operational stability.

Falling film and flooded water-cooled chillers offer several high-value advantages that make them ideal for large-capacity, high-efficiency central cooling applications. Both evaporator types are engineered to maximize heat-exchange performance, reduce operating costs, and enhance long-term system reliability. Aurashu integrates optimized falling-film and flooded designs with advanced control logic, precision oil-management, enhanced heat-transfer tubing, and high-efficiency compressors to achieve superior operational performance in commercial and industrial environments.1. Exceptional Heat-Transfer EfficiencyThe primary advantage of both falling-film and flooded chillers lies in their enhanced heat-exchange capabilities. Falling-film evaporators use a thin refrigerant film over the tube surface, dramatically improving evaporation efficiency while reducing the total refrigerant charge. Flooded evaporators, on the other hand, submerge the tube bundle, maintaining maximum thermal contact even under fluctuating loads. This results in superior system COP, stable performance, and higher IPLV values.2. Lower Refrigerant Charge (Especially Falling Film)Sustainability and regulatory compliance drive the need for lower refrigerant volumes. Falling-film chillers can reduce refrigerant charge by 30–50% compared to conventional flooded units. This reduction minimizes operating cost, simplifies leak management, and supports the transition to newer low-GWP refrigerants. Aurashu’s optimized distribution system ensures an even, controlled refrigerant film for efficient operation with minimal charge.3. High Energy Efficiency & Part-Load PerformanceBoth falling-film and flooded systems excel in energy savings, especially when combined with high-efficiency centrifugal, screw, or magnetic-bearing compressors. The enhanced evaporator efficiency allows the compressors to operate at lower lift and reduced power input. With Aurashu’s intelligent VFD and adaptive control algorithms, the chiller maintains exceptional part-load performance, supporting 24/7 mission-critical environments.4. Stable Cooling Output for Large-Capacity SystemsFlooded evaporators are particularly valued for their stability in high-capacity central plants. Because the tubes are fully submerged, heat transfer remains consistent even when the load varies. This provides the operational reliability needed for industrial cooling, district energy, and large commercial buildings. Aurashu designs both evaporator types to maintain constant film thickness, optimized refrigerant distribution, and maximum surface utilization.5. Improved System Reliability & Longer Equipment LifeThanks to optimal heat-exchange efficiency and reduced compressor workload, these chillers experience less mechanical stress. Flooded systems enhance lubrication consistency, while falling-film units reduce refrigerant foaming and liquid entrainment. Aurashu’s precision oil-return design, micro-channel distribution system, and corrosion-resistant tube materials greatly extend equipment lifespan and reduce maintenance frequency.6. Lower Operating Costs & Reduced Maintenance NeedsHigh efficiency translates directly into lower energy consumption. The even thermal load on compressors prevents premature wear, and the reduced refrigerant mass lowers service cost. Aurashu integrates self-cleaning design options, anti-fouling solutions, and real-time predictive diagnostics to ensure low long-term operating expenses.7. Flexible Application Across Many IndustriesBecause of their strong efficiency and reliability characteristics, falling-film and flooded chillers are widely used in commercial buildings, data centers, industrial cooling, chemical production, pharmaceutical facilities, and district cooling systems. Aurashu customizes evaporator type, compressor configuration, tube material, and control logic based on project requirements.