LG

LG MULTI F Triple Zone Heat Pump | 24,000 BTU Compressor | Montreal, Laval, Longueuil, South Shore and North Shore

In stock
SKU: LMU240HV-999
24,000BTU/h · 3 heads
−20 °Cheats down to
Wi-Fi includedR-410AUp to 3 heads
Areas
Talk to a technician · 514 316-2973
Outdoor unit LMU240HV*Possible indoor models LMN079HVT, LSN090HSV5, LSN120HSV5, LMN159HVTAHRI 206221544
In short

The LG Multi F 24 000 multi-zone heat pump heats and cools 3 rooms with a single outdoor unit. it delivers 21,400 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

3 rooms, one outdoor unit.

Compared with the 59 multi-zone systems of 24,000 BTU we sell. Figures come from the manufacturer’s data and the AHRI certification.

AHRI 206221544
+HSPF2 11.0Rank 7 (tied) of 59. Class median: 10.0.
+EER2 13.5Rank 8 (tied) of 57. Class median: 12.5.
+SEER2 22.5Rank 14 (tied) of 59. Class median: 21.0.
!Good to know: heats down to −20 °CRank 38 of 59; class median: −25 °C.
21,400BTU/h at −8 °C
−20 °Cstill heating
3heads
02 · The machine

The parts that make a multi-zone system.

Tap a part to learn more.

LMU240HV*

Outdoor unit

One compressor for the whole house. It supplies up to 3 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
2Here
30,000BTU
234
36,000BTU
234
48,000BTU
2345678
60,000BTU
2345678

LG Multi F 24 000 · 3 zones

21,400 BTU/h
at −8 °C

Up to 3 heads on this outdoor unit. Tap another box to see that size.

06 · Deep cold

At −15 °C, it still delivers 75 % 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 cooling22.5
Scale 1 – 30Median: 21
Rank 14 (tied) of 59 in its class.
HSPF2 · seasonal heating11.0
Scale 1 – 15Median: 10
Rank 7 (tied) of 59 in its class.
EER2 · cooling in peak heat13.5
Scale 1 – 20Median: 12.5
Rank 8 (tied) of 57 in its class.
09 · Report card

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

Compared with the 59 multi-zone systems of 24,000 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-zone3 wall units
On the wall1 outdoor unit3 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

25.3 in
LMU240HV*Depth 15.2 in
36.1 in
Dimensions: product sheet (W × D × H).

One circuit for the whole house

Electrical panel
Load calculation before the quote
20 A max. breaker
MCA 16 A · 220 V
Outdoor unit
Head 1
Head 2
Head 3
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 1/4 - 3/8 in under line covers, no work inside the walls.
05Dedicated circuit220 V, MCA 16 A, 20 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
54
27
58
20 dB(A)3040506070
29 Reference head, lowest speed38 Reference head, highest speed27 Class indoor median54 Outdoor unit58 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)24,000 BTU · 2 tonsSheet
SEER2 (seasonal cooling efficiency)22.5AHRI
EER2 (instant cooling efficiency)13.5AHRI
HSPF2 (seasonal heating efficiency, region IV)11.0AHRI
Dehumidification2.3 pints/hSheet
Heating
Capacity at −8 °C21,400 BTU/hSheet
Capacity at −15 °C18,000 BTU/hSheet
Heats down to−20 °CSheet
Zones and heads
Zones on this product3 Zones (Triple Zone)Sheet
Maximum zones3 Zones (Triple Zone)Sheet
Possible indoor modelsLMN079HVT, LSN090HSV5, LSN120HSV5, LMN159HVTSheet
Combinations offered5 · 9+9+9 … 12 + 12 + 12Sheet
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)36.1 x 15.2 x 25.3 inSheet
Line sizes1/4 - 3/8 inSheet
Outdoor sound54 dB(A)Sheet
Electrical
Voltage220 VSheet
MCA (minimum circuit ampacity)16 ASheet
MOP (maximum overcurrent protection)20 ASheet
RefrigerantR-410ASheet
Wi-FiIncludedSheet
Certifications and warranty
AHRI206221544AHRI
Warranty (compressor · parts · labour)10 yrs · 10 yrs · 0 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 Triple Zone Heat Pump | 24,000 BTU Compressor | Montreal, Laval, Longueuil, South Shore, and North Shore

Excellence in Air Conditioning and Heating

At AirGreen, our mission is to provide air conditioning and heating solutions tailored to our clients' needs in Montreal, Laval, Longueuil, as well as the South Shore and North Shore. We are proud to introduce the LG MULTI F Triple Zone Heat Pump, an avant-garde solution designed to offer comfort and energy efficiency in your home.

Unique Features of the LG MULTI F Triple Zone Heat Pump

This wall-mounted 3-zone heat pump stands out for its exceptional cooling and heating capabilities, with a 24,000 BTU capacity for cooling and efficient heating performance down to -20°C. Designed to meet the needs of various spaces, it allows for control of up to three independent zones, thus offering maximum flexibility and customization.

  • Capacity and Dimensions: With its compact exterior dimensions, this unit discreetly integrates into any interior decor without compromising living space.
  • Technology and Innovation: Equipped with an Inverter compressor, the heat pump dynamically adjusts its power to maintain constant comfort while reducing energy consumption. The defrost/deicing function ensures efficient operation even in the most challenging weather conditions.
  • Quiet Design: A sound pressure level of 54.0 dB(A) ensures that the unit's operation remains discreet, contributing to a peaceful atmosphere in your home.
  • Durability and Reliability: With a 10-year warranty on the compressor and parts, this heat pump is a secure investment for your long-term comfort.

Economic and Environmental Benefits

The LG MULTI F Triple Zone Heat Pump is not only a beneficial choice for your comfort but also for your wallet and the environment.

  • Government Subsidies: Benefit from financial assistance thanks to federal and provincial subsidies, making the installation of this heat pump even more affordable.
  • Energy Efficiency: Although not Energy Star® certified, with a 22.5 SEER efficiency rating, this heat pump optimizes energy use, thus reducing your electricity bills and carbon footprint.

Professional Installation by AirGreen

Our team of experts at AirGreen takes care of the installation of your LG MULTI F Triple Zone Heat Pump with the utmost care and attention to detail. We ensure a quick, efficient installation that adheres to the strictest standards, thus guaranteeing the proper functioning and longevity of your system.

Why Choose AirGreen for Your Heat Pump?

  • Local Expertise: Our in-depth knowledge of the climate in Montreal and the surrounding regions allows us to advise you on the best heating and air conditioning solution tailored to your specific needs.
  • Dedicated Customer Service: Our commitment to our clients' satisfaction is our priority. We offer responsive and effective after-sales service to answer all your questions and concerns.
  • Quality and Reliability: Choosing AirGreen means opting for high-quality products and professional installation service that guarantee performance and peace of mind.

Conclusion

The LG MULTI F Triple Zone Heat Pump represents the pinnacle of air conditioning and heating technology for your home. With its innovative features, energy efficiency, and the support of a professional team for its installation, AirGreen is your partner of choice for a sustainable comfort solution. Contact us today to find out how we can transform your living space into a haven of peace and efficiency.

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: 21,400 BTU/h at −8 °C, 18,000 at −15 °C.

How many heads can I connect?

Up to 3 on this outdoor unit. This product is configured for 3 heads.

Can I mix head sizes?

Yes. The “Zones” menu offers 5 combinations, from 9+9+9 to 12 + 12 + 12 (in thousands of BTU). Each head is sized for its room.

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, 54 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; labour is not included by the manufacturer. 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.