LG

LG MULTI F 6-Zone Heat Pump | 48,000 BTU Compressor | Montreal, Laval, Longueuil, South Shore and North Shore

In stock
SKU: LMU480HV-999999
48,000BTU/h · 6 heads
−20 °Cheats down to
Wi-Fi includedR-410AUp to 8 heads
Areas
Talk to a technician · 514 316-2973
Outdoor unit LMU480HV*Possible indoor models LMN079HVT, LSN090HSV5, LSN120HSV5, LMN159HVT, LSN180HSV5, LMN249HVTAHRI 8111358
In short

The LG Multi F 48 000 multi-zone heat pump heats and cools 6 rooms with a single outdoor unit. it delivers 49,014 BTU/h at −8 °C, heats down to −20 °C. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.

01 · The verdict in 10 seconds

6 rooms, one outdoor unit, and the most powerful in its class at −8 °C.

Compared with the 82 multi-zone systems of 48,000 BTU we sell. Figures come from the manufacturer’s data and the AHRI certification.

AHRI 8111358
+49,014 BTU/h at −8 °CRank 1 (tied) of 78. Class median: 36,800 BTU/h.
+EER2 13.0Rank 8 (tied) of 78. Class median: 12.0.
!Good to know: SEER2 19.5Rank 72 of 78; class median: 21.3.
49,014BTU/h at −8 °C
−20 °Cstill heating
6 → 8heads, on the same unit
02 · The machine

The parts that make a multi-zone system.

Tap a part to learn more.

LMU480HV*

Outdoor unit

One compressor for the whole house. It supplies up to 8 heads.

03 · How it works

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.

04 · My plan

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.

05 · The series

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.

Outdoor2 zones3 zones4 zones5 zones6 zones7 zones8 zones
18,000BTU
2
24,000BTU
23
30,000BTU
234
36,000BTU
234
48,000BTU
2345Here78
60,000BTU
2345678

LG Multi F 48 000 · 6 zones

49,014 BTU/h
at −8 °C

Up to 8 heads on this outdoor unit. Tap another box to see that size.

06 · Deep cold

At −15 °C, it still delivers 81 % of its rated capacity.

Tap a temperature: capacity, efficiency and the cost of one hour of heating.

07 · The bill

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.

08 · Efficiency

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.

SEER2 · seasonal cooling19.5
Scale 1 – 30Median: 21.3
Rank 72 (tied) of 78 in its class.
HSPF2 · seasonal heating10.0
Scale 1 – 15Median: 10
Rank 27 (tied) of 78 in its class.
EER2 · cooling in peak heat13.0
Scale 1 – 20Median: 12
Rank 8 (tied) of 78 in its class.
09 · Report card

Where it ranks among same-size multi-zone systems.

Compared with the 82 multi-zone systems of 48,000 BTU we sell. Weaknesses too, said plainly.

10 · Head-to-head

Against three other brands in its class.

Same rated size, other manufacturers. Pick the opponent.

11 · Multi-zone or wall units

One multi-zone or several wall units? Both sides, honestly.

This multi-zone6 wall units
On the wall1 outdoor unit6 outdoor units
Electrical1 dedicated circuitOne circuit per unit
CapacityShared between roomsReserved for each room
If the outdoor unit stopsEvery zone stopsOnly one room
ModesSame mode everywhereEach room chooses
LogisVertPer the listDepends on each model

We compare both options on your floor plan during the estimate.

12 · Installation

What to know before installing a multi-zone system.

Dimensions, wiring and lines, drawn. Then our six steps.

The outdoor unit, dimensioned

54.34 in
LMU480HV*Depth 15.75 in
37.41 in
Dimensions: product sheet (W × D × H).

One circuit for the whole house

Electrical panel
Load calculation before the quote
40 A max. breaker
MCA 28 A · 220 V
Outdoor unit
Head 1
Head 2
Head 3
Head 4
Head 5
Head 6
Our RBQ licence covers electrical work (subclass 16).
01Room-by-room visit and surveyWe measure each zone and note insulation and windows. The on-site estimate is free.
02Heads and line layoutOne pair of lines per head.
03Outdoor unit baseAbove the snow line, away from the neighbours’ bedroom windows.
04Exposed, finished linesLines 3/8 - 3/4 in under line covers, no work inside the walls.
05Dedicated circuit220 V, MCA 28 A, 40 A protection. The panel load calculation is done before the quote.
06Commissioning, zone by zoneEach head is tested and the controls set up.
13 · Sound

Published sound levels, on one scale.

We use the outdoor figure to choose where the unit goes.

29
38
56
28
64
20 dB(A)3040506070
29 Reference head, lowest speed38 Reference head, highest speed28 Class indoor median56 Outdoor unit64 Class outdoor median
Values in dB(A). Indoor values are those of the sheet’s reference head; each head has its own, confirmed for the chosen model. Municipal noise by-laws vary by borough.
14 · Specifications

Every number, and where it comes from.

Each line carries its source; a line with no published value is not shown.

Performance
Cooling capacity (size)48,000 BTU · 4 tonsSheet
SEER2 (seasonal cooling efficiency)19.5AHRI
EER2 (instant cooling efficiency)13.0AHRI
HSPF2 (seasonal heating efficiency, region IV)10.0AHRI
Dehumidification2.3 pints/hSheet
Heating
Capacity at −8 °C49,014 BTU/hSheet
Capacity at −15 °C38,900 BTU/hSheet
Heats down to−20 °CSheet
Zones and heads
Zones on this product6 ZonesSheet
Maximum zones8 ZonesSheet
Possible indoor modelsLMN079HVT, LSN090HSV5, LSN120HSV5, LMN159HVT, LSN180HSV5, LMN249HVTSheet
Indoor dimensions (W × D × H)32.94 × 7.44 × 12.13 inSheet
Vertical louversManualSheet
Horizontal louversAutoSheet
Airflow (reference head)282 CFMSheet
Indoor sound (reference head)29 – 38 dB(A)Sheet
Installation
Outdoor unit (W × D × H)37.41 x 15.75 x 54.34 inSheet
Line sizes3/8 - 3/4 inSheet
Outdoor sound56 dB(A)Sheet
Electrical
Voltage220 VSheet
MCA (minimum circuit ampacity)28 ASheet
MOP (maximum overcurrent protection)40 ASheet
RefrigerantR-410ASheet
Wi-FiIncludedSheet
Certifications and warranty
AHRI8111358AHRI
Warranty (compressor · parts · labour)10 yrs · 10 yrs · 6 yrsSheet
AirGreen extended warrantyPossibleSheet
15 · Official brochures

The manufacturer’s documentation, as PDF.

16 · Description

Everything we have written about this system.

LG MULTI F 6-Zone Wall-Mounted Heat Pump: An Innovative Solution for Home Comfort

An Ecological and Economical Choice for Residents of Montreal and Surrounding Areas

In an era where energy efficiency and home comfort are paramount, the LG MULTI F 6-Zone Wall-Mounted Heat Pump emerges as a revolutionary solution for residents of Montreal, Laval, Longueuil, as well as the South Shore and North Shore. This advanced technology not only provides heating and cooling tailored to the specific needs of each household, but it does so in an eco-friendly and cost-effective manner.

Exceptional Features

The LG MULTI F Heat Pump excels with its high-end performance, offering a cooling capacity of 48,000 BTU and an efficient heating capability down to -20°C. Designed to adapt to various living configurations, it can serve up to 8 zones, with a standard setup of 6 zones, allowing for complete customization of comfort in every room of your house.

Dimensions and Installation

With exterior dimensions of 37.41 x 15.75 x 54.34, this system harmoniously integrates into the exterior of your home. The installation process, carried out by AirGreen's certified professionals, ensures an efficient and hassle-free commissioning of your heat pump.

Energy Performance and Subsidies

While this system is not Energy Star® certified, it compensates with an impressive efficiency rating of 19.5 SEER, optimizing your energy consumption and reducing long-term costs. Moreover, residents of Montreal and surrounding areas can benefit from federal and provincial subsidies, making this investment even more attractive.

Connectivity and Comfort

The integration of WiFi in the LG MULTI F Heat Pump allows for remote management via your smartphone, offering unprecedented flexibility and ease of use. The external sound pressure level of just 56.0 dB(A) ensures discreet operation, thus contributing to a peaceful and comfortable home environment.

Exceptional Warranty and Support

AirGreen is committed to providing not only superior quality products but also unmatched customer service. The LG MULTI F Heat Pump comes with a robust warranty, covering the compressor and parts for 10 years and labor for 6 years straight from the distributor, with an option to extend the labor warranty further. This level of support underscores our confidence in the long-term reliability and performance of our products.

Why Choose AirGreen?

Choosing AirGreen for the installation of your LG MULTI F 6-Zone Wall-Mounted Heat Pump means benefiting from the dedication of a team ready to support you at every step of the process. Our deep understanding of the specific needs of residents in Montreal, Laval, Longueuil, and the surrounding areas, allows us to offer tailor-made solutions that exceed expectations.

Conclusion: A Compromise-Free Heating and Cooling Solution

The LG MULTI F 6-Zone Wall-Mounted Heat Pump represents the pinnacle of home comfort technology, offering exceptional energy efficiency, flexibility, and reliability. At AirGreen, we are proud to contribute to the improvement of your home's comfort while respecting the environment. Contact us today to discover how this innovative solution can transform your living experience.

Warranty: 10 years on the compressor, 10 years on parts and 6 years on labor, straight from the distributor.

17 · Questions

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: 49,014 BTU/h at −8 °C, 38,900 at −15 °C.

How many heads can I connect?

Up to 8 on this outdoor unit. This product is configured for 6 heads.

Down to what temperature does it heat?

Down to −20 °C.

Is it noisy?

Indoors, the reference head goes down to 29 dB(A). Outdoors, 56 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.

AirGreen

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.

RBQ 5645-9605-01Ventilation 15.8, refrigeration 15.10, electrical 16
We handle the circuitOur licence covers the electrical work
Beware of scamsHydro-Québec does no phone or door-to-door solicitation for LogisVert
Sources checked on October 1, 2026.Costs: Hydro-Québec Rate D, 11.142 ¢/kWh (second tier, since 1 April 2026). Amounts shown are estimates; only the responsible bodies confirm the grant awarded.