LG Multi F MAX LGRED R32 Heat Pump | 2 Heads at 48,000 BTU | Montérégie

BROCHURE

A multi-zone solution designed for the demanding buildings of the Montérégie region

At AirGreen, we have been installing multi-zone systems for many years in a wide variety of settings: high-end single-family homes, apartment buildings, professional offices, retail spaces, and mixed-use buildings. The LG Multi F MAX LGRED R32 – 48,000 BTU heat pump , configured here with two indoor units , is one of the solutions we recommend when flexibility, thermal stability, and long-term reliability are paramount.

This outdoor unit, the KUMXA481A , designed to supply up to 8 indoor zones , allows for future expansion. In the Montérégie region, where many buildings are expanded or renovated over several years, this expansion capacity represents a tangible advantage, often a decisive factor when selecting a multi-zone centralized HVAC system.

An LGRED R32 platform adapted to the Quebec climate

The core of this system is based on LGRED technology combined with R-32 refrigerant, a choice that meets both current environmental requirements and Quebec's climatic realities. Unlike some older multi-zone solutions, this heat pump maintains stable heating capacity down to -25°C , which is essential for ensuring winter comfort without excessive reliance on supplemental heating.

In our facilities in the Montérégie region , as well as in Montreal , Laval , Longueuil , on the South Shore and the North Shore , we have found that this type of system is particularly relevant for:

• buildings with several distinct occupancy zones,

• spaces with uneven thermal loads,

• projects where visual and sound discretion is important.

Key technical specifications of the KUMXA481A model

The LG Multi F MAX LGRED R32 – 48,000 BTU heat pump stands out with technical parameters designed for intensive and long-lasting use:

• Rated cooling capacity : 48,000 BTU

• Heating capacity : reliable operation down to −25 °C

• Refrigerant : R-32 , more efficient and with a lower environmental impact

• Supported areas : 2 to 8 indoor units

• Electrical voltage : 208-230 V

• MCA : 34 A

• MOP : 40 A

• Outdoor noise level : approximately 56 dB(A)

• Built-in Wi-Fi for remote control and energy management

These parameters correspond to the configurations that we actually install on the ground in residential and commercial projects.

A realistic and measurable energy yield

Unlike some product descriptions that display unrealistic values, we always emphasize performance indicators that conform to North American standards . The efficiency of this system relies primarily on:

• a variable speed scroll compressor ,

• precise power modulation according to actual demand,

• intelligent refrigerant distribution to each zone.

In practice, this translates into controlled energy consumption , a stable temperature in each space and a significant reduction in short cycles, which are often responsible for premature wear of equipment.

Selection and compatibility of indoor units

One of the major advantages of the LG Multi F MAX is its compatibility with several models of high-efficiency wall units, including:

• KNUAB091A (9000 BTU)

• KNUAB121A (12,000 BTU)

• KNMAB151A (14,300 BTU)

• KNUAB181A (18,000 BTU)

At AirGreen, we size each zone according to the actual heat load, not according to an approximate rule. In a recent project in Boucherville , for example, we combined an 18,000 BTU unit for an open-plan space with a 12,000 BTU unit for a closed office area, all powered by the same outdoor unit.

Refrigeration network and professional installation

This system allows for significant pipe lengths , with advanced management of elevation differences between units. This offers great design freedom, particularly useful in multi-story buildings or those with complex architectural constraints.

However, this flexibility requires a rigorous HVAC installation :

• precise calculation of equivalent lengths,

• strict adherence to pipe diameters,

• proper installation of distribution units,

• commissioning with complete procedures and thorough checks.

This is precisely where AirGreen's expertise makes the difference. A poorly installed multi-zone heat pump may function, but never at its full potential.

LogisVert subsidy and long-term value

To date, this model is eligible for the LogisVert provincial grant , which can reach $4,200 , depending on the building's configuration and eligibility. We systematically assist our clients in preparing their application, as incomplete documentation is one of the most frequent reasons for rejection.

Beyond the subsidy, this system represents a structuring investment :

• evolving over time,

• compatible with renovation or extension projects,

• backed by a 10-year warranty on parts and compressor .

Why entrust your project to AirGreen

At AirGreen, we don't just sell equipment. We design complete HVAC solutions , adapted to the local realities of Montreal , Laval , Longueuil , the North Shore , the South Shore and the Montérégie region.
Our approach is based on:

• a detailed thermal analysis,

• complete transparency regarding costs,

• experienced refrigeration technicians,

• $5 million liability insurance,

• a structured and accessible after-sales service.

Each installation is documented, tested and explained to the client, in order to ensure optimal long-term use.

A reliable multi-zone solution for today and tomorrow

The LG Multi F MAX LGRED R32 heat pump – 2 heads, 48,000 BTU – is designed for homeowners and managers seeking a high-performance, adaptable solution that meets current heating and cooling standards. When properly sized and installed, it provides consistent comfort, measurable energy efficiency, and lasting peace of mind.

Contact AirGreen

To obtain a detailed quote , confirm your eligibility for the LogisVert grant , or discuss your HVAC installation project in the Montérégie region, contact AirGreen Heat Pumps, Air Conditioning & Heating directly. Our team will assist you every step of the way, from the initial analysis to final commissioning.