4-Head DIRECT AIR DA25 Heat Pump (-25°C) | Ext: 36000 BTU

In stock
SKU: DIRM-36DA25-4Z-4
Provincial Subsidy (LogisVert): 1340 $ (Updated: November 26, 2025)
Model Number (External): DIRM-36DA25-4Z
AHRI: 207743779
ENERGY STAR®: Yes
ENERGY STAR® (Cold Climate): No / No
# ENERGY STAR ID: 2473856
Heating Capacity: -25 °C
Cooling Capacity: 36,000 BTU
Gas (Freon): R-410A
WiFi: Optional

SEER2 (Seasonal Air Conditioning Efficiency)

1 23.9 30

HSPF2 (Seasonal heating efficiency)

1 9.5 15

EER2 (Instantaneous efficiency in air conditioning)

1 11.7 20

COP at -8 °C (Heating energy efficiency)

1 1.8 3
Nominal Power: 36,000 BTU
Power at -8°C: 26800 BTU
Power at -15°C: 25200 BTU
Interior Dimensions (L x D x H): 33.66 x 9.09 x 11.69 in ***
Vertical flap control (Air direction): Auto ***
Horizontal flap control (Air direction): Auto ***
Sound Pressure Level (Indoor): 22.5 / 36 dB(A) ***(depending on the model chosen)***
Possible Model Number (Interior): DIRM-09DA25-WM, DIRM-12DA25-WM , DIRM-18DA25-WM , and DIRM-24DA25-WM

CFM (Airflow) (12,000 BTU***)

1 382 700
External Dimensions (L x W x H): 37.24 × 16.14 × 31.89 in
Zones: 4 Zones (Quad Zone)
Maximum Zones: 4 Zones (Quad Zone)
Sound Pressure Level (Exterior): 63.0 dB(A)
Voltage: 220 V
MCA (Minimum Circuit Ampacity): A
MOP (Maximum Overcurrent Protection): 40 A
Warranty (Compressor - Parts - Labor): 5-5-0 years
Additional Warranty: Possible

An intelligent multi-zone solution for precise comfort in every room

At AirGreen, we regularly install multi-zone systems in homes, condos, and multi-dwelling units in Montreal, Laval, Longueuil, on the North Shore, and the South Shore. The DIRECT AIR DA25 (36000 BTU) 4-head heat pump represents a particularly effective solution for those who want to independently control several spaces while optimizing their energy consumption.

This model stands out for its ability to power up to 4 distinct zones, with reliable performance down to -25°C, which perfectly matches Quebec's climatic realities.


Why choose a multi-zone heat pump like the DIRECT AIR DA25?

Personalized comfort management

With a quad-zone system, each room equipped with an indoor unit can be controlled individually:

  • Different temperature in each zone
  • Reduced energy losses
  • Perfect adaptation to living habits

In a recent project in Boucherville (South Shore), we installed this system in a multi-story house where:

  • The basement required little heating
  • The ground floor required stable comfort
  • The upstairs bedrooms had varying needs

Result: a measured reduction in energy consumption of more than 25% compared to an old, poorly balanced central system.


Performance adapted to the Quebec climate

Efficient heating down to -25°C

The DA25 series is designed to operate in extreme conditions:

  • Heating operational down to -25°C
  • Heating capacity at -15°C: 25,200 BTU
  • Power at -8°C: 26,800 BTU

According to the technical brochure, these systems offer an impressive operating range:

  • Air conditioning: -25°C to 50°C
  • Heating: -25°C to 30°C

Energy efficiency data

  • SEER2: 23.9 (high-efficiency cooling)
  • HSPF2: 19.5 (efficient heating)
  • COP at -8°C: 11.83

These performances ensure excellent energy efficiency, even in winter.


Complete technical configuration

Outdoor unit (DIRM-36DA25-4Z)

  • Capacity: 36,000 BTU
  • Voltage: 220V
  • Sound level: 63 dB(A)
  • Dimensions: 37.24 × 16.14 × 31.89 in
  • Refrigerant: R-410A
  • Recommended breaker: 40A

Indoor unit compatibility

This system is compatible with several types of units:

  • Wall-mounted (DIRM-09 / 12 / 18 / 24 DA25-WM)
  • Consoles
  • 4-way ceiling cassettes
  • Ducted units
  • Floor/ceiling

This flexibility is a major advantage for complex projects, especially in renovations in Montreal where space is limited.


Advanced technology and features

Smart comfort and automation

Indoor units include several useful features:

  • Automatic restart
  • Intelligent defrost
  • 24-hour programmable timer
  • Eco mode and turbo mode
  • Integrated humidity sensor
  • "Follow Me" function for precise adjustment

Optimized airflow control

  • Vertical vanes: automatic
  • Horizontal vanes: automatic
  • Vane position memory

This allows for uniform air distribution, essential to avoid cold or hot spots.


AirGreen actual installation: case study

Laval Project – Intergenerational home

We recently installed a DIRECT AIR DA25 4-zone heat pump in an intergenerational property:

Configuration:

  • 1 x 18,000 BTU unit in the main living room
  • 2 x 9,000 BTU units for the bedrooms
  • 1 x 12,000 BTU unit in the basement

Challenges encountered:

  • Significant piping length
  • Balanced load distribution

According to the manufacturer's combination rules:

  • Total indoor capacity must be between 66% and 133% of the outdoor unit

We adjusted the configuration to optimize real performance.

Result:

  • Stable comfort in all zones
  • Minimal noise (22.5 dB in some rooms)
  • Satisfied client after a full winter

Subsidy and profitability

LogisVert Program

This heat pump is eligible for a provincial subsidy:

  • Amount: $1340

Even if this model is not classified as "Cold Climate Energy Star," it remains highly efficient and cost-effective in a residential context.


Common mistakes to avoid

Incorrect sizing

A poorly calculated multi-zone system can lead to:

  • Loss of heating performance
  • Imbalance between rooms
  • Premature wear

At AirGreen, we always analyze:

  • Actual surface area
  • Insulation
  • Orientation
  • Occupancy habits

Non-optimized installation

Errors observed on some external projects:

  • Poorly insulated piping
  • Poor drainage
  • Inadequate unit placement

These errors can drastically reduce performance.


Maintenance and durability

Recommended maintenance

To ensure longevity:

  • Filter cleaning: every 2 to 3 months
  • Annual comprehensive inspection
  • Refrigerant level check

Lifespan and warranty

  • Warranty: 5 years compressor / 5 years parts / 0 year labor
  • Extended warranty options available

Why choose AirGreen for your HVAC installation?

Recognized field expertise

  • Certified and experienced technicians
  • Installation compliant with RBQ standards
  • Real performance optimization

Transparency and support

  • Clear quote before work
  • No hidden fees
  • Post-installation support

Local presence

We intervene quickly in:

  • Montreal
  • Laval
  • Longueuil
  • North Shore
  • South Shore

Conclusion: a strategic choice for multi-zone properties

The DIRECT AIR DA25 (36000 BTU) 4-head heat pump stands out as an effective solution for:

  • Homes with several distinct zones
  • Duplexes and multi-dwelling units
  • Complex renovations

It combines flexibility, performance, and precise comfort control, while remaining financially accessible.


Contact AirGreen for a personalized evaluation

To obtain a detailed quote, tailored recommendation, or to schedule your HVAC installation in Montreal, Laval, Longueuil, North Shore, or South Shore, contact our team now.

We analyze each project with precision to offer you the most effective and sustainable solution.