MIDEA EVOX G3 “ADD-ON” Central Heat Pump | 4 T - 48000 BTU R454B

• BROCHURE - "ADD-ON"
• BROCHURE

A central solution designed for existing Quebec buildings

At AirGreen, we have been installing ADD-ON central heat pumps for years in single-family homes, duplexes, multi-unit buildings, and light commercial buildings in Montreal , Laval , Longueuil , on the North Shore , and on the South Shore . The MIDEA EVOX G3 4-tonne – 48,000 BTU Central Heat Pump with R-454B refrigerant was designed specifically to meet the real constraints of Quebec's housing stock: existing forced-air systems, narrow mechanical rooms, high winter heating requirements, and increasing expectations for energy efficiency.

This ADD-ON unit allows you to transform an existing central system into a 100% electric solution, efficient down to -30°C , while retaining the existing ductwork, air distribution, and, if needed, supplementary heating. It's a strategic choice for reducing energy consumption, improving comfort, and accessing LogisVert subsidies .

Actual heating performance down to −30 °C

In our climate, a central heat pump should primarily be judged on its heating capacity in very cold weather , not solely on its cooling performance. The MIDEA EVOX G3 4 T is designed to deliver consistent power even when temperatures plummet.

Specifically, this unit offers:

• Rated capacity of 48,000 BTU

• Functional heating down to -30°C

• Power measured at −8 °C: 34,400 BTU

• Power measured at −15 °C: 42,000 BTU

• High COP at low temperatures , which translates to fewer kilowatt-hours consumed for each BTU produced

During several installations carried out by AirGreen in Laval and on the North Shore , this heat pump made it possible to cover almost all winter heating needs, with minimal use of electric backup, even in houses built before 1990.

Inverter technology central unit suitable for existing ducts

The EVOX G3 uses advanced central inverter technology , which continuously adjusts compressor power and airflow according to the building's actual needs. Unlike on/off systems, this allows:

• A more stable temperature

• Fewer on/off cycles

• Quieter operation

• Reduced component wear

For existing buildings, this is a major advantage. In several projects in Longueuil , we integrated this unit into original ductwork without major modifications, while achieving homogeneous air distribution over several floors.

Intelligent airflow and adaptation to complex ducts

A common problem in HVAC renovations involves imperfect ductwork: sections that are too narrow, high pressure drops, or overly restrictive filters. The MIDEA EVOX G3 incorporates advanced constant airflow management, capable of maintaining the required volume even when static pressure varies.

In practice, this means:

• Automatic adaptation to existing conduits

• Compatibility with high-efficiency filters

• Consistent comfort, even in remote rooms

• A controlled noise level, even at high speeds

At AirGreen, we have seen a marked improvement in comfort in homes in East Montreal where old gas furnaces struggled to heat the upper floors.

High-performance central air conditioning during heat waves

In air conditioning mode, this central heat pump delivers 48,000 BTUs with excellent stability, even during heat waves. Its operation remains reliable at high outdoor temperatures, which is essential during increasingly hot summers in Quebec.

The performance indicators attest to this achievement:

• High SEER2

• EER2 optimized

• Smooth operation even in extreme conditions

For the multi-unit residential buildings we serve on the South Shore , this translates into uniform air conditioning, without overcooled areas or complaints from occupants.

R-454B refrigerant: efficiency and environmental compliance

The MIDEA EVOX G3 uses R-454B , a new-generation refrigerant with a low global warming potential (GWP) . This choice allows for:

• A measurable reduction in carbon footprint

• Compliance with current and future standards

• Compatibility with energy certification requirements

For our clients, it is a sustainable investment, compatible with environmental policies and provincial subsidy programs.

Electrical compatibility and simplified ADD-ON installation

One of the key strengths of this model is its design, which is specifically tailored for conversion projects. In ADD-ON mode, the unit integrates seamlessly into an existing system without requiring a complete rebuild.

• Voltage 220 V

• MCA: 38 A

• MOP: 40 A

• Standard 3/8 – 3/4 piping

• Compact dimensions for confined mechanical rooms

During projects carried out in Montreal , we were often able to preserve the location of the old furnace, thus reducing installation costs and delays.

Controlled noise level and acoustic comfort

With an external noise level of approximately 65 dB(A) , the EVOX G3 remains suitable for dense residential environments. We pay particular attention to placement and vibration isolation during installation, especially in urban areas like Montreal and Longueuil , to ensure the comfort of occupants and neighbors.

Connectivity, control and intelligent management

This central heat pump includes:

• Built-in Wi-Fi

• Compatible with smart thermostats

• Precise control of temperature, humidity and schedules

• Energy consumption monitoring

For several homeowners we support in Laval , this smart management has allowed them to better understand their energy profile and optimize settings according to the seasons.

Long-term guarantee and reliability

The EVOX G3 comes with a 12-year warranty on the compressor and parts (labor subject to terms and conditions), with the option to extend. At AirGreen, we complement this reliability with:

• An installation compliant with HVAC standards

• Precise adjustments during commissioning

• A structured and fast after-sales service

This is an essential aspect for central systems that are expected to operate intensively during the Quebec winter.

Why choose AirGreen for your EVOX G3

Installing an ADD-ON central heat pump is more than just connecting components. It requires a thorough understanding of heating loads, ductwork, occupancy patterns, and electrical constraints. At AirGreen, we provide:

• Proven field expertise in Montreal , Laval , Longueuil , North Shore and South Shore

• Precise calculations tailored to each building

• Complete transparency on costs

• Support for LogisVert subsidies

Conclusion

The MIDEA EVOX G3 | 4 T – 48,000 BTU R-454B "ADD-ON" Central Heat Pump represents a robust, efficient, and perfectly suited central solution for the Quebec climate. It allows you to modernize an existing system, reduce energy costs, and improve year-round comfort.

For a personalized assessment , a detailed quote , or information about HVAC installation in your area, contact AirGreen directly. Our team will be happy to assist you at every stage of your project.