LG MULTI F MAX R32 3-Head Heat Pump | 60,000 BTU Compressor
The LG Multi F Max R32 60 000 multi-zone heat pump heats and cools 3 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.
3 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 high-end, multi-zone solution designed for the realities of Quebec
At AirGreen , we have been installing HVAC systems for years in a wide variety of settings: single-family homes in Montreal, duplexes in Laval, multi-unit buildings in Longueuil, new residences on the North Shore , and more complex projects on the South Shore . Over time, some systems have clearly distinguished themselves through their flexibility, stability, and ability to meet the real needs of homeowners.
The LG MULTI F MAX R32 3-Head Heat Pump with 60,000 BTU compressor is one of those solutions we recommend when needs exceed a simple single-zone system.
This multi-zone model allows you to power up to three indoor units from a single outdoor unit, while offering a maximum capacity of up to 8 zones depending on the configuration. It is a particularly suitable choice for multi-story buildings, large residential areas, multigenerational homes, or certain rental properties where each zone needs to be controlled independently.
Why is the MULTI F MAX R32 different from other multi-zone systems?
Real and usable power, even for heating
With a rated output of 60,000 BTU , this system isn't just designed to impress on paper. In practice, we observe remarkable stability in heating capacity, even when temperatures drop.
The heat pump maintains excellent performance down to -16°C , with a measured output of approximately 42,000 BTU at -8°C and 46,000 BTU at -15°C , which is essential for the climate of Montreal , the Montérégie region and the more exposed areas of the North Shore .
In several recent projects, particularly in renovated duplexes in Laval, this consistency has made it possible to significantly reduce the use of supplementary electric systems, which directly translates into savings on energy bills.
Truly intelligent multi-zone management
Unlike some more basic multi-zone systems, the LG MULTI F MAX manages capacity distribution dynamically. Each indoor unit receives the necessary power according to actual demand, without penalizing other zones.
In practical terms, this means:
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A bedroom that requires little heating does not affect the comfort of the living room.
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A sunny floor does not conflict with a cooler basement.
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Each zone retains precise and independent control .
This operating logic is particularly appreciated in open-plan houses combined with closed spaces, a scenario we encounter very frequently in Longueuil and on the South Shore .
Choosing R-32 refrigerant: efficiency and environmental compliance
Switching to R-32 refrigerant is not insignificant. This refrigerant offers:
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improved energy efficiency ,
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a lower global warming potential than R-410A
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compatibility with current and future environmental standards.
In practice, this means a more efficient system, simpler to maintain in the long term, and better positioned to meet future regulations. For our clients concerned about the sustainability of their investment, this is a crucial point.
Energy performance and key technical data
The LG MULTI F MAX R32 heat pump displays solid performance indicators in both air conditioning and heating:
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Cooling capacity : 60,000 BTU
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SEER2 : very high for a multi-zone system of this capacity
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HSPF2 : Optimized for seasonal heating
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COP at -8 °C : 12.013
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ENERGY STAR® : Yes
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AHRI Number : 215402343
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Voltage : 220 V
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MCA : 34 A
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MOP : 40 A
This technical data corresponds to what we actually observe in the field during commissioning and post-installation monitoring.
A wide range of compatible indoor units
Another major advantage of this system is the flexibility in choosing indoor units . Depending on the building's configuration, we can combine:
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compact wall-mounted units,
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low consoles,
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More powerful units for large rooms,
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Discreet models for bedrooms or offices.
Compatible models include: KNUAK091A, KNUAK121A, KNUAK181A, KNMAB071A, KNUAB091A, KNUAB121A, KNMAB151A, KNUAB181A, KNMAB241A .
This diversity allows us to adapt each installation to the reality of the building, rather than forcing a standardized solution.
Dimensions, noise and integration into the building
Outdoor unit
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External dimensions : 37.41 x 15.66 x 54.34 in
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Outdoor noise level : 58 dB(A)
Despite its power, the outdoor unit remains relatively discreet for its category. When installed in dense urban environments, particularly in Montreal, this aspect is crucial to respecting the neighborhood and municipal regulations.
Indoor units
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Typical dimensions : 32.94 x 7.56 x 12.13 in
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Interior noise level : as low as 29 dB(A) depending on the model
In several residences where silence is a priority (bedrooms, home offices), this low noise level makes a real difference on a daily basis.
Installation: what our experience has taught us
Installing a multi-zone system of this scale is not something that can be done on a whim. At AirGreen , we've learned that success depends on several key factors:
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Precise calculation of thermal loads per zone
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Rigorous management of pipe lengths
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Strict adherence to maximum elevation differences
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Appropriate selection of distribution units (DDUs)
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Methodical commissioning with complete verification of pressures and flow rates
In a recent project in Boucherville, poor initial planning (before our intervention) would have resulted in a significant loss of performance. By revising the sizing and layout of the units, we corrected the problem even before final commissioning.
LogisVert subsidy and long-term value
This model is eligible for the LogisVert provincial grant , with an amount of up to $2,100 depending on eligibility and project configuration (updated: November 26, 2025).
Beyond the immediate financial assistance, it is above all the reduction in operating costs over several years that makes this system attractive for owners in the long term.
Guarantee and peace of mind
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Compressor warranty : 10 years
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Parts warranty : 10 years
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Labor warranty : 6 years, straight from the distributor (extended warranty available)
At AirGreen, we always support our clients in registering guarantees and offer additional protection options when the context warrants it.
Why choose AirGreen for this type of multi-zone system?
Installing an LG MULTI F MAX R32 multi-zone heat pump is not just about installing equipment:
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It's about designing a complete HVAC solution .
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anticipate the actual uses of the building,
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to provide a structured and responsive after-sales service.
Our certified refrigeration technicians , our $5 million liability insurance , our transparent pricing and our hands-on experience in hundreds of projects in Montreal , Laval , Longueuil , North Shore and South Shore make all the difference.
Conclusion
The LG MULTI F MAX R32 3-Head Heat Pump | 60,000 BTU Compressor is for homeowners looking for a serious, high-performance, and durable multi-zone solution without compromising on comfort or energy efficiency.
Take action with AirGreen
Contact us today for a personalized analysis , a detailed quote , and an HVAC installation tailored to your building. Our team will be happy to guide you toward the configuration that best meets your specific 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 3 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.