Integrated Low-Temperature Heating Modular Unit | Integrated Air Source Heat Pump-FAQ

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.