LG MULTI F MAX R32 5-Head Heat Pump | 60,000 BTU Compressor
The LG Multi F Max R32 60 000 multi-zone heat pump heats and cools 5 rooms with a single outdoor unit. it delivers 42,000 BTU/h at −8 °C, heats down to −16 °C and qualifies for a $2,100 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
5 rooms, one outdoor unit.
Compared with the 19 multi-zone systems of 60,000 BTU we sell. Every number on this page carries its source.
The parts that make a multi-zone system.
Tap a part to learn more.
Outdoor unit
One compressor for the whole house. It supplies up to 8 heads and modulates from 12,420 to 56,500 BTU/h depending on what the rooms call for (NEEP).
Base pan heater
A heater keeps the outdoor unit’s base pan free of ice below 1 °C and during defrost (NEEP).
Refrigerant lines
One pair of lines per head.
Indoor heads
One head per room, each with its own remote and temperature. The combination is chosen in the “Zones” menu.
Control
Each zone is set separately, also from your phone.
Turn rooms on and off. Watch the power being shared.
One outdoor unit supplies every head: when several rooms call at once, they share its capacity. Pick an outdoor temperature.
Tell us your rooms. We tell you if this size is enough.
Pick the number of rooms and their size. The estimate targets a −15 °C day; it is a guide, the real calculation is done room by room at your home.
The whole series at a glance: find the box that fits you.
Each box is a product: the outdoor unit’s size, and the number of heads.
At −15 °C, it still delivers 76 % of its rated capacity.
Tap a temperature: certified capacity, efficiency and the cost of one hour of heating.
It slows down, it speeds up: the certified modulation range
Light bar: from minimum to maximum capacity. Dark mark: the rated value.
At every temperature, cheaper than baseboards.
Cost of one hour at full output, for the same heat delivered. Hydro-Québec Rate D, second tier: 11.142 ¢/kWh.
The official ratings, on the same scales as before.
SEER2, HSPF2 and EER2 come from the AHRI certification. The mark shows the median of the same-size multi-zone systems we sell.
A grant you can calculate, not guess.
The capacity at −8 °C comes from Hydro-Québec’s list of October 1, 2026. $50 per 1,000 BTU/h is the rate for ENERGY STAR heat pumps (guide v1.10).
Where it ranks among same-size multi-zone systems.
Compared with the 19 multi-zone systems of 60,000 BTU we sell, using the LogisVert list figures. Weaknesses too, said plainly.
One multi-zone or several wall units? Both sides, honestly.
We compare both options on your floor plan during the estimate.
What to know before installing a multi-zone system.
Dimensions, wiring and lines, drawn. Then our six steps.
The outdoor unit, dimensioned
One circuit for the whole house
Published sound levels, on one scale.
We use the outdoor figure to choose where the unit goes.
What is particular about this machine.
Only facts published by ENERGY STAR, NEEP or the manufacturer.
Every number, and where it comes from.
Each line carries its source; a line with no published value is not shown.
The manufacturer’s documentation, as PDF.
Everything we have written about this system.
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:
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The surface areas vary greatly from one room to another.
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Heating and cooling needs are not uniform.
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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:
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a discreet cassette in a commercial space
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a silent wall unit in a bedroom
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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
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Rated capacity : 60,000 BTU
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Maximum cooling : 60,000 BTU
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Heating down to -16°C
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Power at -8°C : 42,000 BTU
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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
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SEER2 : 20.5
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HSPF2 : 11.0
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COP at -8 °C : 1.20
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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:
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Lower global warming potential
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Better volumetric efficiency
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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:
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Voltage : 208-230 V
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MCA : 33.3 A
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MOP : 40 A
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Outdoor noise level : 56–58 dB(A)
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Maximum total piping length : 475.7 ft
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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:
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removal of four existing outdoor units
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improvement of the facade's aesthetics
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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
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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
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LG warranty : 10 years compressor, 10 years parts
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Labor : 6 years, straight from the distributor
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Warranty extensions : available
At AirGreen, we also provide:
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post-installation follow-up
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scheduled HVAC maintenance
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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:
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Detailed technical studies before each project
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Transparent pricing , confirmed before work begins
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LG Multi-Zone System Experienced Technicians
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$5M liability insurance
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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.
Warranty: 10 years on the compressor, 10 years on parts and 6 years on labor, straight from the distributor.
What people ask us about multi-zone systems.
Can I heat one room and cool another at the same time?
No. On a multi-zone system like this one, every head works in the same mode, heating or cooling. Each room still keeps its own set temperature.
What happens when every room calls for heat?
They share the outdoor unit’s capacity: 42,000 BTU/h at −8 °C, 46,000 at −15 °C.
How many heads can I connect?
Up to 8 on this outdoor unit. This product is configured for 5 heads.
How much is the LogisVert grant?
$2,100 according to Hydro-Québec’s list of October 1, 2026. The grant never exceeds 100 % of the cost before taxes; apply within 9 months of installation.
Is it ENERGY STAR certified?
Yes, ID 3621277. It also meets the ENERGY STAR Most Efficient criteria, according to the ENERGY STAR database.
Down to what temperature does it heat?
Down to −16 °C.
Is it noisy?
Indoors, the reference head goes down to 29 dB(A). Outdoors, 58 dB(A): we place the unit away from bedroom windows.
Why a multi-zone instead of several wall units?
One outdoor unit on the wall and one circuit. In return, the rooms share the capacity, and if the outdoor unit stops, every zone stops.
What does the warranty cover?
Our sheet lists 10 years on the compressor and 10 years on parts. AirGreen extended warranty: possible.
A multi-zone system is planned room by room. At your home.
We measure every room, draw the line route and choose the right head for each zone. The on-site estimate is free and the quote arrives within 24 h.