Fujitsu RLXFZ 4-Head Heat Pump | 45,000 BTU Compressor | Montreal, Laval, Longueuil, South Shore and North Shore

In stock
SKU: AOU45RLXFZ-9999
45,000BTU/h · 4 heads
−15 °Cheats down to
Optional Wi-FiR-410AUp to 5 heads
Areas
Talk to a technician · 514 316-2973
Outdoor unit AOU45RLXFZPossible indoor models ASU7RLF1, ASU9RLF1, ASU12RLF1, ASU15RF1, ASU18RLFAHRI 8908617
In short

The Fujitsu RLXFZ 45 000 multi-zone heat pump heats and cools 4 rooms with a single outdoor unit. it delivers 28,200 BTU/h at −8 °C, heats down to −15 °C. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.

01 · The verdict in 10 seconds

4 rooms, one outdoor unit.

Compared with the 8 multi-zone systems of 45,000 BTU we sell. Figures come from the manufacturer’s data and the AHRI certification.

AHRI 8908617
+Only 55 dB(A) outdoorsRank 1 (tied) of 8. Class median: 55.5 dB(A).
!Good to know: 28,200 BTU/h at −8 °CRank 5 of 8; class median: 29,600 BTU/h.
28,200BTU/h at −8 °C
−15 °Cstill heating
4 → 5heads, on the same unit
02 · Videos

Before the numbers, watch it run.

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 zones
18,000BTU
2
24,000BTU
23
36,000BTU
234
45,000BTU
23Here5

Fujitsu RLXFZ 45 000 · 4 zones

28,200 BTU/h
at −8 °C

Up to 5 heads on this outdoor unit. Tap another box to see that size.

06 · Deep cold

At −15 °C, it still delivers 69 % 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 cooling20.0
Scale 1 – 30Median: 21
Rank 5 (tied) of 8 in its class.
HSPF2 · seasonal heating9.2
Scale 1 – 15Median: 9.6
Rank 5 (tied) of 8 in its class.
EER2 · cooling in peak heat10.5
Scale 1 – 20Median: 11.3
Rank 5 (tied) of 8 in its class.
COP at −15 °C1.88
Scale 0 – 4Median: 2.01
Rank 5 (tied) of 8 in its class.
09 · Report card

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

Compared with the 8 multi-zone systems of 45,000 BTU we sell. Weaknesses too, said plainly.

10 · Multi-zone or wall units

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

This multi-zone4 wall units
On the wall1 outdoor unit4 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.

11 · Installation

What to know before installing a multi-zone system.

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

The outdoor unit, dimensioned

38.19 in
AOU45RLXFZDepth 14.56 in
39.31 in
Dimensions: product sheet (W × D × H).

One circuit for the whole house

Electrical panel
Load calculation before the quote
29 A max. breaker
MCA 24 A · 220 V
Outdoor unit
Head 1
Head 2
Head 3
Head 4
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 24 A, 29 A protection. The panel load calculation is done before the quote.
06Commissioning, zone by zoneEach head is tested and the controls set up.
12 · Sound

Published sound levels, on one scale.

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

21
40
55
20
56
20 dB(A)3040506070
21 Reference head, lowest speed40 Reference head, highest speed20 Class indoor median55 Outdoor unit56 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.
13 · 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)45,000 BTUSheet
SEER2 (seasonal cooling efficiency)20.0AHRI
EER2 (instant cooling efficiency)10.5AHRI
HSPF2 (seasonal heating efficiency, region IV)9.2AHRI
Dehumidification3.8 pints/hSheet
Heating
Capacity at −8 °C28,200 BTU/hSheet
Capacity at −15 °C31,400 BTU/h · COP 1.88Sheet
Heats down to−15 °CSheet
Zones and heads
Zones on this product4 Zones (Quad Zone)Sheet
Maximum zones5 ZonesSheet
Possible indoor modelsASU7RLF1, ASU9RLF1, ASU12RLF1, ASU15RF1, ASU18RLFSheet
Combinations offered8 · 9+9+9+9 … 12+12+12+12Sheet
Indoor dimensions (W × D × H)33.06 × 8 × 10.5 inSheet
Vertical louversAutoSheet
Horizontal louversManualSheet
Airflow (reference head)388 CFMSheet
Indoor sound (reference head)21 – 40 dB(A)Sheet
Installation
Outdoor unit (W × D × H)39.31 x 14.56 x 38.19 inSheet
Line sizes1/4 - 3/8 inSheet
Outdoor sound55 dB(A)Sheet
Electrical
Voltage220 VSheet
MCA (minimum circuit ampacity)24 ASheet
MOP (maximum overcurrent protection)29 ASheet
RefrigerantR-410ASheet
Wi-FiOptionalSheet
Certifications and warranty
AHRI8908617AHRI
Warranty (compressor · parts · labour)12 yrs · 12 yrs · 0 yrsSheet
AirGreen extended warrantyIncludedSheet
14 · Official brochures

The manufacturer’s documentation, as PDF.

15 · Description

Everything we have written about this system.

Fujitsu RLXFZ Wall-Mounted 4-Zone Heat Pump

Custom Comfort for Every Corner of Your Home

In today’s world, energy efficiency and home comfort are not luxuries but necessities. AirGreen, your trusted partner in Montreal, Laval, Longueuil, as well as the South Shore and North Shore, is proud to introduce the ultimate solution for tailor-made comfort: the Fujitsu RLXFZ Wall-Mounted 4-Zone Heat Pump. With its impressive 45,000 BTU capacity, this heating and cooling system is the top choice for households looking to optimize their comfort all year round.

Technical Features

  • Cooling and Heating Capacity: The heat pump offers a cooling capacity of 45,000 BTU and provides effective heating down to -15°C, ensuring your comfort regardless of the weather conditions.
  • Modular Comfort Zones: Designed to adapt to various home layouts, this heat pump can manage up to 4 zones independently, with the possibility of extending to 5 zones, allowing for complete temperature customization in different areas.
  • Simplified Installation: The installation of this system is quick and does not require major renovations, enabling you to enjoy enhanced comfort without significant delays.
  • Quiet Operation: Fujitsu heat pumps are distinguished by their particularly quiet operation, significantly reducing noise nuisances compared to traditional central systems.

Energy Advantages and Subsidies

  • High Energy Efficiency: With a 19.0 SEER rating, the Fujitsu RLXFZ heat pump stands for significant energy savings, reducing your heating and cooling costs in the long term.
  • Attractive Subsidies: Take advantage of federal subsidies of up to $5,000 and provincial subsidies of $1,410 to facilitate your transition to a more energy-efficient heating and cooling solution.
  • Advanced Inverter Technology: Thanks to Inverter technology, the system dynamically adjusts its power to quickly reach the desired temperature and maintain it steadily, contributing to a notable reduction in your energy consumption.

Personalized Comfort in Every Room

The Fujitsu RLXFZ Wall-Mounted 4-Zone Heat Pump revolutionizes the traditional approach to domestic heating and cooling. Thanks to its independent zone management, each family member can set the ideal temperature for their personal space, thus eliminating thermostat conflicts and ensuring personalized comfort throughout the home.

Why Choose AirGreen?

  • Local Expertise: Located in Montreal and also serving Laval, Longueuil, as well as the South Shore and North Shore, we have an in-depth understanding of the local climate and the specific needs of homes in the area.
  • Professional Installation: Our team of certified technicians ensures a quick, clean, and standards-compliant installation, giving you unmatched peace of mind.
  • Comprehensive Warranty: With our exceptional 10-year warranty on the compressor, parts, and labor, plus an included additional warranty, you can invest in your comfort with confidence.

By choosing the Fujitsu RLXFZ Wall-Mounted 4-Zone Heat Pump with AirGreen, you're not just selecting a cutting-edge heating and cooling solution but also partnering with experts dedicated to your comfort all year round. Contact us today to transform your home into a haven of comfort and energy efficiency.

16 · 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: 28,200 BTU/h at −8 °C, 31,400 at −15 °C.

How many heads can I connect?

Up to 5 on this outdoor unit. This product is configured for 4 heads.

Can I mix head sizes?

Yes. The “Zones” menu offers 8 combinations, from 9+9+9+9 to 12+12+12+12 (in thousands of BTU). Each head is sized for its room.

Down to what temperature does it heat?

Down to −15 °C.

Is it noisy?

Indoors, the reference head goes down to 21 dB(A). Outdoors, 55 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 12 years on the compressor and 12 years on parts; labour is not included by the manufacturer. AirGreen extended warranty: included.

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.