Product Specification

Product Description

The MRC Series Heat Pump Rooftop Package Unit represents Midea's commitment to delivering comprehensive HVAC solutions for commercial and light industrial environments. This advanced rooftop system combines year-round cooling and heating capabilities in a single, self-contained package, making it an ideal choice for applications where space is at a premium and installation simplicity is paramount.

At the heart of the MRC Series lie premium scroll compressors from industry leaders Copeland, Hitachi, and Danfoss. These precision-engineered compressors operate with minimal vibration and noise while delivering exceptional energy efficiency with EER ratings ranging from 10.2 to 11.4 Btu/h.W. The intelligent refrigeration circuit incorporates advanced controls that optimize compressor operation based on real-time load demands, resulting in significant energy savings throughout the unit's lifecycle.

Built for demanding outdoor conditions, the unit features a heavy-duty cabinet constructed from G90 galvanized steel—a material known for its superior strength and corrosion resistance. Every unit undergoes rigorous 500-hour salt spray testing to verify its ability to withstand coastal environments, industrial atmospheres, and other corrosive conditions. Optional enhanced anti-corrosion treatment is available for the most challenging installations.

The MRC Series offers remarkable operational flexibility with an extended temperature range. Cooling mode operates effectively from 10°C to 46°C ambient temperature, while heating function remains reliable even at temperatures as low as -9°C. This wide operating envelope makes the units suitable for deployment across diverse climate zones, from temperate regions to harsh northern winters.

The vertical side-discharge configuration simplifies installation logistics by eliminating the need for complex ductwork modifications. This design enables direct placement on flat rooftops or ground-level pads with minimal site preparation, reducing installation time and associated labor costs. The unit integrates seamlessly with existing building management systems, supporting modern smart building initiatives.

Features & Benefits

All-Season Climate Control — Integrated heat pump technology eliminates the need for separate heating and cooling systems. A single rooftop unit delivers comfortable temperatures year-round, reducing equipment footprint and simplifying building mechanical room design. This consolidation translates to lower capital investment and reduced maintenance complexity.

Premium Scroll Compressor Technology — Copeland, Hitachi, and Danfoss scroll compressors are renowned for their reliability and efficiency. These compressors feature asymmetric scroll profiles that minimize leakage and maximize volumetric efficiency, resulting in 5-10% higher efficiency compared to conventional reciprocating compressors. The design also ensures exceptionally smooth operation with reduced noise and vibration levels.

Superior Corrosion Resistance — The G90 galvanized steel cabinet undergoes a comprehensive coating process followed by 500-hour salt spray testing to American Society for Testing and Materials (ASTM) standards. This ensures long-term structural integrity in marine coastal locations, industrial facilities with acidic atmospheres, and urban environments with high pollution levels. Optional factory-applied epoxy coating provides additional protection for the most corrosive environments.

Extended Operating Temperature Range — The MRC Series operates in cooling mode from 10°C to 46°C ambient temperature and provides efficient heating down to -9°C. This remarkable range accommodates most global climate conditions without requiring additional heating or cooling supplements. The system's intelligent controls automatically adjust operation parameters to maintain optimal comfort and efficiency across the entire operating envelope.

Energy-Efficient Performance — With EER ratings between 10.2 and 11.4 Btu/h.W, the MRC Series delivers industry-leading energy efficiency. Advanced features such as multi-stage capacity modulation, optimized refrigerant circuitry, and high-efficiency fan motors work together to minimize electricity consumption. Building owners benefit from reduced utility expenses while contributing to environmental sustainability goals.

Streamlined Installation Process — The vertical side-discharge design eliminates the need for supply and return air ductwork in many applications, significantly reducing installation complexity and cost. Units can be positioned on standard rooftop curb adapters or concrete pads with minimal structural preparation. The compact footprint maximizes installation flexibility while the standardized connections facilitate quick, reliable commissioning.

Comprehensive Safety Protection — A complete suite of protection mechanisms safeguards the unit against abnormal operating conditions. High and low refrigerant pressure switches prevent damage from inadequate or excessive refrigerant charge. Current overload protection guards against electrical faults, while temperature sensors monitor critical parameters to ensure safe, reliable operation. These built-in safeguards extend equipment life and minimize unexpected downtime.

Simplified Maintenance Access — Service access panels are strategically positioned to enable efficient routine maintenance without removing major components. External pressure tap ports allow refrigerant charge verification without opening the sealed system. This design philosophy reduces service time and associated labor costs while ensuring the unit remains properly charged for optimal performance throughout its operational life.

Technical Data