LG

LG MULTI F MAX R32 7-Head Heat Pump | 60,000 BTU Compressor

In stock
SKU: KUMXB601A-7
Provincial Subsidy (LogisVert): 2100 $ (Updated: November 26, 2025)
Model Number (External): KUMXB601A
AHRI: 215402343
ENERGY STAR®: Yes
ENERGY STAR® (Cold Climate): No / No
# ENERGY STAR ID: 3621277
Heating Capacity: -16 °C
Cooling Capacity: 60,000 BTU
Gas (Freon): R-32
WiFi: Included

SEER2 (Seasonal Air Conditioning Efficiency)

1 20.5 30

HSPF2 (Seasonal heating efficiency)

1 10.0 15

EER2 (Instantaneous efficiency in air conditioning)

1 12.0 20

COP at -8 °C (Heating energy efficiency)

1 2.01 3
Nominal Power: 60,000 BTU
Power at -8°C: 42000 BTU
Power at -15°C: 46000 BTU
Interior Dimensions (L x D x H): 32.94 x 7.56 x 12.13 in ***
Vertical flap control (Air direction): Auto ***
Horizontal flap control (Air direction): Auto ***
Sound Pressure Level (Indoor): 29 / 38 dB(A) ***(depending on the model chosen)***
Possible Model Number (Interior): KNUAK091A, KNUAK121A, NUAK181A, KNMAB071A, KNUAB091A, KNUAB121A, KNMAB151A, KNUAB181A, and KNMAB241A

CFM (Airflow) (12,000 BTU***)

1 459 700
External Dimensions (L x W x H): 37.41 x 15.66 x 54.34 in
Zones: 7 Areas
Maximum Zones: 8 Areas
Sound Pressure Level (Exterior): 58.0 dB(A)
Voltage: 220 V
MCA (Minimum Circuit Ampacity): 34 A
MOP (Maximum Overcurrent Protection): 40 A
Warranty (Compressor - Parts - Labor): 10-10-0 years
Additional Warranty: Possible

A multi-zone HVAC solution designed for complex buildings in Quebec

At AirGreen, we work daily with owners of plexes , multi-unit residential buildings, intergenerational residences, and light commercial buildings in Montreal , Laval , Longueuil , on the North Shore and the South Shore . They all share a common need: an HVAC system capable of providing precise zone control , reliability in cold climates , and intelligent energy management , without multiplying the number of outdoor units.

The LG MULTI F MAX R32 7-Head Heat Pump – 60,000 BTU compressor – perfectly meets this need. This high-capacity, multi-zone system can power up to 7 indoor units (8 maximum) from a single outdoor unit, while maintaining stable heating and cooling performance. We regularly install it in projects where flexibility and technical planning make all the difference.


Why the LG MULTI F MAX stands out on the field

A truly usable multi-zone architecture

Unlike many multi-split systems limited by pipe length or height difference, the LG MULTI F MAX R32 offers exceptional design freedom . In multi-story buildings or buildings with complex layouts, this flexibility allows for optimal placement of indoor units without compromising performance.

From a technical standpoint, the system accepts:

  • A total length of piping that can reach nearly 476 ft

  • Significant height differences between the outdoor unit and the indoor units

  • The use of distribution boxes for a balanced distribution of the refrigerant

These parameters, which we control during our calculations and installation plans, are essential to avoid capacity losses and ensure long-term sustainability.

A capacity adapted to local climatic realities

With a rated output of 60,000 BTU , this system is designed to efficiently serve several distinct zones, each with its own heating requirements. In practice, we have installed it in:

  • Triplexes with one apartment per floor

  • Multi-unit houses with home offices

  • Small shops combining open spaces and closed offices

In terms of heating, capacity remains robust even when temperatures drop, which is crucial in the Quebec context. At -8°C , available power remains high, reducing reliance on supplemental electric heating.


R-32: a coherent technical and environmental choice

The R-32 refrigerant offers a tangible advantage, not just a marketing gimmick. Compared to previous generations, it offers:

  • A lower global warming potential

  • Improved thermal efficiency

  • Reduced fluid charge for the same capacity

For our clients concerned about their environmental footprint, particularly in projects eligible for certain provincial subsidies , this choice is part of a responsible and sustainable HVAC approach.


Key technical data mastered by our teams

When we propose this system, we analyze each project based on specific parameters:

  • Air conditioning capacity : 60,000 BTU

  • Areas served : 7 zones (8 maximum)

  • Electrical voltage : 220 V

  • MCA : 34 A

  • MOP : 40 A

  • Outdoor noise level : 58 dB(A)

  • Gas : R-32

  • Built-in Wi-Fi

  • Warranty : 10 years compressor, 10 years parts, 0 years labor (extension possible)

These elements are systematically validated with the existing electrical infrastructure, in collaboration with the project electrician, in order to avoid any unpleasant surprises during commissioning.


Choosing internal units: a real strategy, not a coincidence

One of the strengths of the LG MULTI F MAX lies in the diversity of compatible indoor units: wall-mounted, console, cassette, and ducted. At AirGreen, we never select these units randomly.

A concrete example in Longueuil

In a three-story residential building, we combined:

  • Wall units in the bedrooms

  • A discreet cassette in the common area

  • A ducted unit for a closed office space

Result: uniform comfort , very low noise levels (up to 29 dB(A) inside depending on the model), and independent zone management which reduces conflicts between occupants.


What we learned on the ground

Common mistakes to avoid

Our experience has shown us that problems with multi-zone systems rarely originate from the equipment itself, but rather from:

  • Poor overall sizing

  • Inadequate allocation of charges by zone

  • Poorly optimized pipe lengths

  • Lack of a centralized control strategy

That is why we always integrate a detailed HVAC design phase, including the calculation of thermal loads and the planning of piping routes.

Maintenance and follow-up

A system of this size requires structured HVAC maintenance :

  • Periodic pressure checks

  • Cleaning of filters and heat exchangers

  • Wi-Fi and control settings update

  • Preventive diagnosis before the heating season

Our maintenance contracts in Montreal , Laval and on the South Shore help to preserve performance and extend the life of the system.


Why entrust the installation to AirGreen

Choosing this type of heat pump without an experienced team is an unnecessary risk. At AirGreen, we provide:

  • Certified refrigeration technicians specializing in multi-zone systems

  • $5 million liability insurance

  • Complete transparency on costs before work begins

  • A thorough knowledge of local standards and manufacturers' requirements

We have installed LG MULTI F MAX systems in very diverse contexts, from high-end residential to multi-unit dwellings, always with the same approach: precision, rigor and durability.


A coherent solution for demanding projects

The LG MULTI F MAX R32 7-Head Heat Pump | 60,000 BTU is clearly designed for projects where a simple residential system is no longer sufficient. It combines:

  • High power

  • Exceptional installation flexibility

  • Advanced zone control

  • Energy efficiency adapted to Quebec

For property owners and managers looking to invest in a reliable, scalable and well-designed HVAC solution, this is a strategic choice.


Take action with AirGreen

Are you considering installing a multi-zone heat pump in Montreal , Laval , Longueuil , on the North Shore or South Shore ? Contact us now for a complete analysis of your project, a detailed quote and advice tailored to your situation.

At AirGreen, we transform complex systems into clear, efficient and sustainable solutions.