ACD

ACD heat pump - MPD | 2 Heads - Compressor 42,000 BTU | Montreal, Laval, Longueuil, South Shore & North Shore

In stock
SKU: MPD42KCH21S-O-99
42,000BTU/h · 2 heads
−20 °Cheats down to
R-410AUp to 5 heads
Areas
Talk to a technician · 514 316-2973
Outdoor unit MPD42KCH21S-OPossible indoor models OCD09KCH23S-I, OCD12KCH22S-I, OCD18KCH20S-I, OCD24KCH20S-IAHRI 202110506
In short

The ACD MPD 42 000 multi-zone heat pump heats and cools 2 rooms with a single outdoor unit. it delivers 29,000 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 86 multi-zone systems of 42,000 BTU we sell. Figures come from the manufacturer’s data and the AHRI certification.

AHRI 202110506
!Good to know: heats down to −20 °CRank 59 of 86; class median: −25 °C.
29,000BTU/h at −8 °C
−20 °Cstill heating
2 → 5heads, on the same unit
02 · The machine

The parts that make a multi-zone system.

Tap a part to learn more.

MPD42KCH21S-O

Outdoor unit

One compressor for the whole house. It supplies up to 5 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
23
30,000BTU
234
36,000BTU
2345
42,000BTU
Here345

ACD MPD 42 000 · 2 zones

29,000 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 63 % 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 18 (tied) of 86 in its class.
HSPF2 · seasonal heating8.6
Scale 1 – 15Median: 9.2
Rank 55 (tied) of 86 in its class.
EER2 · cooling in peak heat10.4
Scale 1 – 20Median: 11.2
Rank 51 (tied) of 82 in its class.
COP at −15 °C1.84
Scale 0 – 4Median: 1.92
Rank 38 (tied) of 73 in its class.
09 · Report card

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

Compared with the 86 multi-zone systems of 42,000 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

17.3 in
MPD42KCH21S-ODepth 43.4 in
43.1 in
Dimensions: product sheet (W × D × H).

One circuit for the whole house

Electrical panel
Load calculation before the quote
35 A max. breaker
MCA 24 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 24 A, 35 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
61
29
62
20 dB(A)3040506070
29 Reference head, lowest speed45 Reference head, highest speed29 Class indoor median61 Outdoor unit62 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)42,000 BTU · 3,5 tonsSheet
SEER2 (seasonal cooling efficiency)21.0AHRI
EER2 (instant cooling efficiency)10.4AHRI
HSPF2 (seasonal heating efficiency, region IV)8.6AHRI
Dehumidification2.96 pints/hSheet
Heating
Capacity at −8 °C29,000 BTU/hSheet
Capacity at −15 °C26,600 BTU/h · COP 1.84Sheet
Heats down to−20 °CSheet
Zones and heads
Zones on this product2 Zones (Dual Zone)Sheet
Maximum zones5 ZonesSheet
Possible indoor modelsOCD09KCH23S-I, OCD12KCH22S-I, OCD18KCH20S-I, OCD24KCH20S-ISheet
Combinations offered10 · 9 + 9 … 24 + 24Sheet
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)43.1 x 43.4 x 17.3 inSheet
Line sizes1/4 - 3/8 inSheet
Outdoor sound61 dB(A)Sheet
Electrical
Voltage220 VSheet
MCA (minimum circuit ampacity)24 ASheet
MOP (maximum overcurrent protection)35 ASheet
RefrigerantR-410ASheet
Wi-FiNoSheet
Certifications and warranty
AHRI202110506AHRI
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.

ACD - MPD Heat Pump | 2 Heads - 42,000 BTU Compressor | Montreal, Laval, Longueuil, South Shore & North Shore

Introduction

In a world where home comfort is more than a luxury, it's a necessity, AirGreen emerges as the ideal partner to enhance living quality through innovative HVAC (Heating, Ventilation, and Air Conditioning) solutions. Specializing in the sale and installation of Double Zone Heat Pumps, we offer top-tier products tailored to the specific needs of our clients in Montreal, Laval, Longueuil, as well as the North Shore and South Shore. Among our flagship offerings, the Wall-Mounted 2-Zone Heat Pump stands out for its exceptional performance and unparalleled reliability.

Why Choose the ACD - MPD Heat Pump?

This section details the advantages and unique features of the Wall-Mounted 2-Zone ACD - MPD Heat Pump, an ideal solution for households seeking maximum energy efficiency and unmatched comfort throughout the year.

Performance and Efficiency

  • Cooling and Heating Capacity: With an impressive capacity of 42,000 BTU for cooling and efficient heating even at -20°C, this heat pump ensures optimal comfort in all seasons.
  • Energy Efficiency: Thanks to a 21.0 SEER rating, it guarantees a significant reduction in energy consumption, which translates to substantial savings on electricity bills.

Design and Features

  • Design and Dimensions: The compact exterior dimensions allow for discreet and aesthetic integration into any living space.
  • Advanced Technologies: Equipped with features such as low voltage start-up, LED display, self-diagnosis, vertical swing, Turbo mode, and many others, this heat pump offers an exceptional user experience.
  • Filtration and Comfort: Washable filters and the dehumidify mode ensure healthy and comfortable indoor air, contributing to a more pleasant living environment.

Installation and Subsidies

  • Easy Installation: The flexibility of installation, with the possibility of extending up to 5 zones, meets the needs of homes of different sizes and configurations.
  • Attractive Subsidies: Homeowners benefit from federal and provincial subsidies totaling up to $5,450, making this investment even more advantageous.

A Commitment to Quality and Service

At AirGreen, we commit not only to providing superior quality products but also exceptional customer service. Our 10-year warranty on the compressor and parts, and 6-year warranty on labor straight from the distributor, is a testament to our confidence in the durability and reliability of our heat pumps. Furthermore, we offer the possibility of an extended 10-10-10 warranty, ensuring total peace of mind for our clients.

Why Trust AirGreen?

  • Local Expertise: With in-depth knowledge of the climate in Montreal and its surroundings, we advise our clients on the best HVAC solutions tailored to their specific needs.
  • Professional Installation: Our certified technicians ensure quick, efficient, and standard-compliant installation, securing the proper functioning and longevity of your heat pump.
  • Continuous Support: Our dedicated customer service is always available to answer your questions and assist you in using your heat pump, ensuring a worry-free experience.

Conclusion

By opting for the Wall-Mounted 2-Zone ACD - MPD Heat Pump from AirGreen, you are choosing a cutting-edge heating and cooling solution, designed to provide optimal comfort and exceptional energy efficiency. Our commitment to quality, service, and customer satisfaction makes us the number one choice for your HVAC needs in Montreal, Laval, Longueuil, and the surrounding areas.

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: 29,000 BTU/h at −8 °C, 26,600 at −15 °C.

How many heads can I connect?

Up to 5 on this outdoor unit. This product is configured for 2 heads.

Can I mix head sizes?

Yes. The “Zones” menu offers 10 combinations, from 9 + 9 to 24 + 24 (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, 61 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.