What is an Integrated Low-Temperature Heating Modular Unit?
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- Issue Time
- Dec 27,2025
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 Concept
This 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 Architecture
The 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 Technology
Aurashu integrates multiple advanced features to guarantee high efficiency and reliable heating in cold climates:
EVI (Enhanced Vapor Injection) Scroll or Rotary Compressor
Enhances heating capacity at low ambient temperatures.
Large-surface multi-row fin evaporators
Improve heat absorption from cold outdoor air.
Intelligent defrost algorithm
Reduces energy waste and prevents frost buildup while ensuring continuous heating.
High-efficiency plate or tube-in-tube heat exchangers
Achieve 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 System
The unit combines multiple subsystems in one compact, factory-assembled package:
Integrated compressor module
Integrated hydraulic module (water pump, valves, sensors optional)
Intelligent control center
Safety and protection functions
Optional buffer tank and expansion tank configurations
This full integration simplifies installation and reduces engineering work for construction projects.
5. Energy Efficiency Advantages
Aurashu low-temperature modular heat pumps provide:
High COP under part-load conditions due to DC variable-speed compressors and fans
Reduced operating costs compared to electric boilers or diesel heating
Lower carbon emissions, aligning with current building sustainability trends
Efficient modulation based on building loads through smart control
6. Application Flexibility
The unit is suitable for:
Residential district heating
Commercial complexes and office buildings
Industrial workshops
Hotels and hospitality projects
Renovation/replacement of old boiler systems
Rural heating modernization
Snow-melting and low-temperature floor heating systems
Modules can be configured according to required heating capacity, temperature range, space availability, and building type.
7. Intelligent Control & Monitoring
Aurashu’s smart control platform offers:
Multi-module coordination
Adaptive load matching
Energy consumption monitoring
Remote cloud control (optional)
Fault prediction and maintenance reminders
This ensures stable operation, lower downtime, and simplified system management.
8. Reliable Performance in Harsh Conditions
With 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.