LG

LG MULTI F MAX R32 5-Head Heat Pump | 60,000 BTU Compressor

In stock
SKU: KUMXB601A-5
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: 5 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 demanding buildings in Quebec

At AirGreen, we have been installing HVAC systems for many years in real-world settings: complex single-family homes , duplexes , multi-unit residential buildings , offices , and commercial buildings in Montreal , Laval , Longueuil , and on the North and South Shores . The LG MULTI F MAX R32 5-Head Heat Pump – 60,000 BTU fits perfectly into this reality: a system designed to supply several independent zones while maintaining a controlled, efficient, and sustainable installation process.

This model is not intended for simple configurations. It is aimed at owners who wish to centralize power , while maintaining precise control by zone , without multiplying outdoor units or overloading the building envelope.


A multi-zone architecture truly adapted to Quebec buildings

Up to 5 active zones, expandable to 8 indoor units

The LG MULTI F MAX R32 can power up to 5 zones simultaneously , with a maximum capacity of 8 indoor units , depending on the configuration. This flexibility is essential in buildings where:

  • The surface areas vary greatly from one room to another.

  • Heating and cooling needs are not uniform.

  • The uses vary depending on the floor or the occupants

In several projects carried out by AirGreen in Montreal East and Boucherville , this type of system has made it possible to replace three or four independent systems with a single outdoor unit, while improving thermal stability and energy management.

Compatible with several types of indoor units

This system accepts a wide range of LG indoor units: wall-mounted, cassette, ducted, and low-profile consoles. Compatible models include KNUAK , KNUAB , KNMAB , and NUAK , offering capacities tailored to each zone.

This allows, for example:

  • a discreet cassette in a commercial space

  • a silent wall unit in a bedroom

  • a ducted unit in an open space

This modularity is a major advantage in complex HVAC renovations.


Actual performance in heating and air conditioning

Available capacity and power

  • Rated capacity : 60,000 BTU

  • Maximum cooling : 60,000 BTU

  • Heating down to -16°C

  • Power at -8°C : 42,000 BTU

  • Power at -15°C : 46,000 BTU

These figures reflect a stable heating capacity for most winter conditions encountered in Greater Montreal. In practice, this means less reliance on supplemental heating and greater continuity of comfort, even during prolonged periods of cold.

Measured energy efficiency

  • SEER2 : 20.5

  • HSPF2 : 11.0

  • COP at -8 °C : 1.20

  • ENERGY STAR® : Yes

These performance features help reduce operating costs , especially in buildings where multiple areas are used intermittently.


R-32 refrigerant: a relevant technical and regulatory choice

R-32 now represents a more responsible standard in HVAC:

  • Lower global warming potential

  • Better volumetric efficiency

  • Reduced fluid quantity compared to older refrigerants

For commercial and multi-residential projects, this choice also facilitates compliance with current and future standards.


Essential technical data for compliant installation

An installation of this scale requires rigorous planning. The following characteristics are crucial in our technical studies:

  • Voltage : 208-230 V

  • MCA : 33.3 A

  • MOP : 40 A

  • Outdoor noise level : 56–58 dB(A)

  • Maximum total piping length : 475.7 ft

  • Maximum height difference : 98.4 ft

These parameters allow for installations on multiple floors, including in existing buildings where the positioning of the outdoor unit is restrictive.


Concrete examples of AirGreen installations

Residential building in Laval

In a 6-unit apartment building, we installed an LG MULTI F MAX R32 to power five indoor units spread across three floors. Result:

  • removal of four existing outdoor units

  • improvement of the facade's aesthetics

  • measured reduction in annual electricity consumption

Commercial building in Longueuil

In an office with variable hours by zone, this system allowed independent control by space , reducing comfort-related complaints and simplifying energy management.


Grant and eligibility

  • LogisVert grant : up to $2,100 (depending on eligibility and update date)

Our teams systematically support clients in preparing their files , including model validation, installation compliance, and required documentation.


Warranty and after-sales service

  • LG warranty : 10 years compressor, 10 years parts

  • Labor : not included by default

  • Warranty extensions : available

At AirGreen, we also provide:

  • post-installation follow-up

  • scheduled HVAC maintenance

  • access to certified refrigeration technicians


Why entrust this project to AirGreen?

Installing a 60,000 BTU multi-zone system requires precision. At AirGreen, we offer:

  • Detailed technical studies before each project

  • Transparent pricing , confirmed before work begins

  • LG Multi-Zone System Experienced Technicians

  • $5M liability insurance

  • Local presence in Montreal and on the South Shore

Each installation is designed to function correctly today , but also in 10 or 15 years .


Conclusion

Are you considering a multi-zone HVAC installation in Montreal , Laval , Longueuil , on the North Shore or the South Shore ?
Contact AirGreen directly for a complete analysis of your building, a detailed quote and a solution truly tailored to your needs.