LG MULTI F MAX R32 2-Head Heat Pump | 60,000 BTU Compressor
The LG Multi F Max R32 60 000 multi-zone heat pump heats and cools 2 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.
2 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 and maintaining high-capacity HVAC systems for many years in a wide variety of settings: single-family homes, duplexes in Montreal, multi-unit buildings in Laval, commercial properties on the South Shore, and mixed-use buildings on the North Shore. The LG MULTI F MAX R32 2-Head Heat Pump with a 60,000 BTU compressor is one of the systems we recommend when heating and cooling needs far exceed those of a standard residential heat pump.
This model is aimed at property owners and managers who are looking for real power , multi-zone flexibility , stable heating in cold weather , and a scalable HVAC architecture capable of adapting to complex projects without compromising reliability.
A multi-zone architecture designed for the realities of Quebec buildings
One central system, multiple zones, one single control logic
The LG MULTI F MAX R32 – KUMXB601A features a robust outdoor unit capable of powering up to 8 indoor units , even though the configuration shown here is a 2-head installation . This feature is far from insignificant: it allows for future expansions , subdivisions, or the addition of new air-conditioned zones without having to replace the outdoor unit.
In practice, we often install this type of system in:
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triplexes and quadruplexes in Montreal where each unit has distinct thermal needs;
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intergenerational homes in Laval or Longueuil ;
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commercial offices requiring precise control by zone;
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rental buildings where heating stability is critical in winter.
A thermal capacity that can actually be used in real-world conditions.
Unlike many systems advertised with theoretical power ratings, the LG MULTI F MAX maintains solid performance at low temperatures:
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60,000 BTU air conditioning
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42,000 BTU at -8°C
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46,000 BTU at -15°C
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Guaranteed operation down to -16°C in heating mode
On the ground, this translates into continuity of service in the middle of winter , even during the cold waves typical of Montreal, the Montérégie region or the North Shore.
High and measurable energy performance
Performance indicators adapted to current standards
This system displays remarkable efficiency values for its category:
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SEER2: 20.5+
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HSPF2: 11.0+
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EER2: 12.0+
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COP at -8 °C: 2.01
These figures are not abstract: they translate concretely into better controlled electricity consumption , particularly important for buildings with continuous occupancy or high thermal load.
In several projects carried out by AirGreen on the South Shore , we have observed a significant reduction in annual energy costs compared to older centralized electrical systems or previous generation heat pumps.
R-32 refrigerant: a technical and regulatory choice
The R-32 gas used by this model offers:
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better thermal performance than R-410A;
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a lower global warming potential ;
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increased compliance with current environmental guidelines in Quebec.
For owners concerned about the regulatory sustainability of their HVAC system, this is a determining factor.
Technical design: what we, as installers, consider
A variable-speed compressor designed to last
The system is equipped with a variable-speed scroll compressor , with:
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gradual start,
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protection against rapid restarts,
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fine electronic management of thermal load.
This significantly reduces mechanical wear, a crucial point in heavily stressed multi-zone installations.
Flexible but demanding refrigeration network
The LG MULTI F MAX allows for complex configurations:
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Total piping length up to 475 ft
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Height difference up to 98 ft
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Mandatory use of distribution modules
At AirGreen , we always emphasize precise refrigeration network design from the initial bidding phase. Poor planning at this stage is one of the most frequent causes of performance problems in multi-zone systems. Our teams take the time to calculate equivalent lengths, additional refrigerant charges, and elevation constraints before any installation.
Acoustic comfort: an often underestimated criterion
Quiet interior, even when fully loaded
Depending on the indoor units chosen, the indoor noise level can drop to 29 dB(A) . In the dense urban housing of Montreal or the condos of Longueuil, this feature makes a real difference in everyday life.
Controlled outdoor unit
With 58 dB(A) in operation, the outdoor unit remains compatible with the majority of municipal regulations, even in tight residential environments.
Compatibility, connectivity and smart control
Wi-Fi included and advanced management
The system is compatible with LG smart control solutions:
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remote monitoring
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advanced diagnostics,
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Possible integration with centralized management systems.
For owners of multi-unit dwellings or property managers, this allows for proactive maintenance and rapid detection of anomalies.
LogisVert subsidy: a concrete financial lever
At the time of writing, this heat pump is eligible for a $2,100 LogisVert provincial grant (updated November 26, 2025). We systematically assist our clients in preparing their applications , as an administrative error can delay or cancel otherwise legitimate financial assistance.
Why entrust the installation to AirGreen
Practical expertise, not just theoretical.
We have installed LG MULTI F systems in complex environments: narrow stairwells, commercial rooftops, cramped mechanical rooms, and existing buildings without the possibility of ductwork. Each project reinforces our understanding of the real-world constraints of Quebec buildings.
Clear commitments
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Transparent pricing before work begins
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Certified refrigeration technicians
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$5,000,000 liability insurance
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Structured and local after-sales service
Who is this heat pump really intended for?
This system is ideal if you are looking for:
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a high-end, multi-zone, centralized HVAC solution
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real power for large areas ,
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long-term scalability ,
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stable heating comfort even in very cold weather .
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an installation that complies with current and future standards .
Conclusion
The LG MULTI F MAX R32 2-Head Heat Pump | 60,000 BTU is not a generic product. It is a structured HVAC solution , designed for ambitious projects where performance, reliability, and flexibility are non-negotiable.
Contact AirGreen today for a detailed analysis of your building, a clear quote and a professional installation, in Montreal, Laval, Longueuil, on the North Shore and the South Shore .
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 2 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.