ACD

ACD heat pump - MPD | 3 Heads - 24,000 BTU Compressor | Montreal, Laval, Longueuil, South Shore & North Shore

In stock
SKU: MPD24KCH21S-O-999
24,000BTU/h · 3 heads
−20 °Cheats down to
R-410AUp to 3 heads
Areas
Talk to a technician · 514 316-2973
Outdoor unit MPD24KCH21S-OPossible indoor models OCD09KCH23S-I, OCD12KCH22S-I, OCD18KCH20S-IAHRI 202110497
In short

The ACD MPD 24 000 multi-zone heat pump heats and cools 3 rooms with a single outdoor unit. it delivers 16,600 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 202110497
!Good to know: HSPF2 9.0Rank 50 of 59; class median: 10.0.
16,600BTU/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.

MPD24KCH21S-O

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 zones
18,000BTU
2
24,000BTU
2Here
30,000BTU
234
36,000BTU
2345
42,000BTU
2345

ACD MPD 24 000 · 3 zones

16,600 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 76 % 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 cooling21.0
Scale 1 – 30Median: 21
Rank 23 (tied) of 59 in its class.
HSPF2 · seasonal heating9.0
Scale 1 – 15Median: 10
Rank 50 (tied) of 59 in its class.
EER2 · cooling in peak heat11.8
Scale 1 – 20Median: 12.5
Rank 46 (tied) of 57 in its class.
COP at −15 °C1.81
Scale 0 – 4Median: 2
Rank 40 (tied) of 51 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

16.8 in
MPD24KCH21S-ODepth 31.1 in
39.6 in
Dimensions: product sheet (W × D × H).

One circuit for the whole house

Electrical panel
Load calculation before the quote
30 A max. breaker
MCA 23 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 23 A, 30 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
45
59
27
58
20 dB(A)3040506070
29 Reference head, lowest speed45 Reference head, highest speed27 Class indoor median59 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)21.0AHRI
EER2 (instant cooling efficiency)11.8AHRI
HSPF2 (seasonal heating efficiency, region IV)9.0AHRI
Dehumidification2.96 pints/hSheet
Heating
Capacity at −8 °C16,600 BTU/hSheet
Capacity at −15 °C18,400 BTU/h · COP 1.81Sheet
Heats down to−20 °CSheet
Zones and heads
Zones on this product3 Zones (Triple Zone)Sheet
Maximum zones3 Zones (Triple Zone)Sheet
Possible indoor modelsOCD09KCH23S-I, OCD12KCH22S-I, OCD18KCH20S-ISheet
Combinations offered5 · 9+9+9 … 12 + 12 + 12Sheet
Indoor dimensions (W × D × H)33.25 × 8.25 × 11.38 inSheet
Vertical louversManualSheet
Horizontal louversAutoSheet
Airflow (reference head)400 CFMSheet
Indoor sound (reference head)29 – 45 dB(A)Sheet
Installation
Outdoor unit (W × D × H)39.6 x 31.1 x 16.8 inSheet
Line sizes1/4 - 3/8 inSheet
Outdoor sound59 dB(A)Sheet
Electrical
Voltage220 VSheet
MCA (minimum circuit ampacity)23 ASheet
MOP (maximum overcurrent protection)30 ASheet
RefrigerantR-410ASheet
Wi-FiNoSheet
Certifications and warranty
AHRI202110497AHRI
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.

ACD - MPD Heat Pump | 3 Heads - 24,000 BTU Compressor

A Complete Comfort Solution for Montreal, Laval, Longueuil, South Shore & North Shore

Seeking efficient and cost-effective heating and cooling solutions is a priority for residents of Montreal, Laval, Longueuil, as well as those on the South Shore and North Shore. AirGreen, a leading company in the HVAC (Heating, Ventilation, and Air Conditioning) sector, is proud to present the Wall-Mounted 3-Zone Heat Pump, a versatile and high-performing system tailored to the needs of modern households.

Unique Features of the Wall-Mounted 3-Zone Heat Pump

The ACD - MPD Heat Pump stands out for its ability to provide customized comfort through its three indoor units, allowing for individual temperature management in different areas of your home. Equipped with a powerful 24,000 BTU compressor, this heat pump is designed to deliver exceptional cooling and heating performance, even in extreme weather conditions down to -20°C.

  • Energy Efficiency and Savings: Certified by Energy Star®, our heat pump ensures minimal energy consumption, reflected in a SEER rating of 21.0. Moreover, homeowners can benefit from federal and provincial subsidies, significantly reducing installation costs.

  • Advanced Technology for Optimized Comfort: Beyond its energy efficiency, the heat pump features a range of advanced functionalities such as low voltage start-up, LED display, self-diagnostic, and turbo mode, guaranteeing easy use and adaptability to all needs.

  • Flexible and Discreet Installation: The compact dimensions of the outdoor unit and the possibility of installing up to three indoor units without compromising your home's aesthetics make this heat pump an ideal solution for any type of dwelling.

  • Durability and Peace of Mind: With an exceptional warranty covering the compressor, parts, and labor, you are assured of a lasting investment. The option to opt for an additional warranty further strengthens confidence in our product's reliability.

Key Advantages for Residents of Montreal and Surrounding Areas

The flexibility of the Wall-Mounted 3-Zone Heat Pump makes it the perfect choice for multi-level homes or spaces with varied heating and cooling needs. Whether you live in Montreal, Laval, Longueuil, on the South Shore, or the North Shore, our HVAC solution allows you to:

  • Individually Control Zones: Adjust the temperature in each zone of your house for personalized comfort without energy waste.
  • Enjoy a Healthy Environment: Washable filters and the dehumidification function help maintain fresh and clean indoor air.
  • Reduce Your Carbon Footprint: Choosing an energy-efficient solution contributes to combating climate change.

Why Choose AirGreen?

At AirGreen, our commitment to customer satisfaction and quality service is unmatched. Our team of HVAC experts is dedicated to providing professional installation and exceptional after-sales service. We understand the importance of a comfortable and healthy home environment, especially in our region's unique climate context. That's why we strive to offer innovative and customized solutions that meet and exceed our customers' expectations.

Conclusion

The Wall-Mounted 3-Zone Heat Pump from AirGreen represents the pinnacle in terms of comfort, efficiency, and flexibility for your home. With its wide range of advanced features, its ability to provide customized heating and cooling, and the substantial savings it enables, this heat pump stands out as the ideal solution for residents of Montreal, Laval, Longueuil, and both Shores. Discover how AirGreen can transform your home into a haven of peace all year round.

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: 16,600 BTU/h at −8 °C, 18,400 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, 59 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.