ACD

ACD heat pump - MPD | 2 Heads - 24,000 BTU Compressor | Montreal, Laval, Longueuil, South Shore & North Shore

In stock
SKU: MPD24KCH21S-O-99
24,000BTU/h · 2 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 2 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

2 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
2 → 3heads, on the same unit
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
Here3
30,000BTU
234
36,000BTU
2345
42,000BTU
2345

ACD MPD 24 000 · 2 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-zone2 wall units
On the wall1 outdoor unit2 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
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 product2 Zones (Dual Zone)Sheet
Maximum zones3 Zones (Triple Zone)Sheet
Possible indoor modelsOCD09KCH23S-I, OCD12KCH22S-I, OCD18KCH20S-ISheet
Combinations offered6 · 9 + 9 … 18 + 18Sheet
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 | 2 Heads - 24,000 BTU Compressor

Your Ultimate Comfort Solution: The Wall-Mounted 2-Zone Heat Pump

At AirGreen, specialists in HVAC (Heating, Ventilation, and Air Conditioning) in Montreal, Laval, Longueuil, as well as on the South Shore and North Shore, we are committed to providing heating and air conditioning solutions tailored to the specific needs of each home. The ACD - MPD Heat Pump with its 2 heads and a 24,000 BTU compressor represents the pinnacle of home comfort technology, combining exceptional performance with substantial energy savings.

Exceptional Features

The Wall-Mounted 2-Zone Heat Pump stands out for its remarkable capabilities in both cooling and heating. With a cooling capacity of 24,000 BTU and an effective heating capacity down to -20°C, this device is designed to provide optimal comfort in various weather conditions. Thanks to its dual-zone functionality, expandable to a triple zone, it allows for advanced customization of the indoor climate, ensuring a pleasant temperature in multiple areas of your home.

Dimensions and Installation

Compact and stylish, the heat pump is characterized by exterior dimensions of 39.6x31.1x16.8, facilitating its installation in various settings without compromising the aesthetics of your space. The serial numbers, for both the outdoor unit (MPD24KCH21S-O) and the indoor units (OCD09KCH23S-I, OCD12KCH22S-I, OCD18KCH20S-I), attest to the authenticity and superior quality of our product.

Economic and Ecological Benefits

Subsidies and Savings

Acquiring our Wall-Mounted 2-Zone Heat Pump is supported by federal subsidies of up to $5,000, as well as a provincial subsidy of $830, making this investment even more attractive. Certified Energy Star®, it guarantees top-tier energy efficiency, with a 21.0 SEER performance, minimizing your carbon footprint while reducing your energy bills.

Technology and Comfort

Equipped with Inverter technology and the eco-friendly R-410A gas, it ensures stable performance and quiet operation (59.0 dB(A) outdoor sound pressure level), essential for your peace of mind. Its low voltage start-up, LED display, self-diagnostic, vertical swing, and control lock features are designed to enhance the user experience and ease daily use.

Filtration and Maintenance

Washable filters and the dehumidify mode contribute to healthier indoor air, while the turbo mode and multiple fan speeds offer maximum flexibility to quickly reach the desired temperature. The sleep timer and sleep mode are thoughtfully designed for your nighttime comfort, ensuring a peaceful night's sleep without interruptions.

Warranty and Service

Our commitment to quality and customer satisfaction is backed by a 10-year warranty on the compressor and parts, with an option for an additional 10-10-10 warranty, ensuring unparalleled peace of mind. At AirGreen, we pride ourselves on our exceptional customer service and technical expertise, guaranteeing professional installation and reliable support throughout the life of your heat pump.

In Conclusion, the Wall-Mounted 2-Zone ACD - MPD Heat Pump from AirGreen is a top-choice heating and air conditioning solution for those looking to enhance the comfort of their home while achieving significant long-term savings. Its exceptional performance, energy efficiency, and advanced features make it a must-have for residents of Montreal, Laval, Longueuil, as well as on the South Shore and North Shore.

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 2 heads.

Can I mix head sizes?

Yes. The “Zones” menu offers 6 combinations, from 9 + 9 to 18 + 18 (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.