HITACHI airHome 400 Wall-Mounted Heat Pump | 36,000 BTU - Sale & Installation

• BROCHURE - FRANÇAIS
• BROCHURE - ENGLISH

• WiFi: Optional
• Warranty (Compressor - Parts - Labor): 10-10-0
• Additional Warranty: Possible
• Piping: 3/8 - 5/8
• Voltage: 220 V
• Sound Pressure Level (Outdoor): 58.0 dB(A)
• Sound Pressure Level (Indoor): 38 / 54 dB(A)

A safe choice for large residential spaces in Montreal and the suburbs

Why this 36,000 BTU appeals to our demanding customers

At AirGreen, we recommend the HITACHI airHome 400 36,000 BTU wall-mounted heat pump to homeowners looking for a robust HVAC solution for open-plan, full-floor, or single-family homes with large air volumes in Montreal, Laval, Longueuil, North Shore, and South Shore . This model combines high seasonal efficiency (SEER2 19.0 / HSPF2 9.5) , R-32 refrigerant , and cleaning and anti-mold technologies that reduce maintenance and enhance indoor air quality. The model numbers— indoor RAK-DJ36PHAA and outdoor RAC-DJ36WHAA —facilitate technical validation, parts sourcing, and warranty registration (AHRI 216411300 ).

Performance, comfort and healthier air

Capacity, climate and noise level

• Cooling : 36,000 BTUs — ideal for large spaces or high ceilings.

• Heating : reliable operation down to -21°C , with capacity curve adapted to Greater Montreal winters.

• Acoustics : 38 to 54 dB(A) indoor side depending on speed; 58 dB(A) outdoor side — consistent values ​​for a 36 k BTU at high airflow.

• Dehumidification : up to 3.3 L/h depending on the configuration, useful during humid heat waves in Montreal .

What this changes for you : in summer, the device efficiently extracts heat and humidity to stabilize the temperature and the feeling of comfort; in winter, the machine maintains the heat with controlled consumption thanks to the vector DC inverter which finely adapts the compressor speed. The cycles are longer and more stable, which limits noise and energy peaks.

Air quality and internal cleanliness

• FrostWash™ : an automated cycle (frost then melt) that “rinses” the exchanger and limits the accumulation of impurities — useful for preserving air flow over time.

• Mold Guard : Internal drying + heating of the battery (~ 50°C ) at the shutdown time to counter the proliferation of mold and odors.

• PM2.5 filtration + activated carbon : captures fine particles and reduces VOCs, for fresher air after 4.5 hours of continuous operation (factory tests).

On a daily basis, these functions reduce HVAC cleaning interventions and stabilize performance between two professional services.

Useful technical sheet for an on-site estimate

Electrical and control

• Power supply : 220–230 V , 1 ph , 60 Hz.

• Minimum Circuit Amperage (MCA) : 27 A.

• Maximum protection (MOP) : 40 A.

• Wi-Fi : Optional via SPX-WFG03 , ideal for weekly scheduling, cost estimation and voice control (Alexa/Google).

• airPoint H700 wall thermostat (SPX-URFG1, optional) : centralized control with color display and energy monitoring functions.

AirGreen Advice : We systematically validate the electrical capacity of the panel, the length of the cable run, the grounding, and the presence of an adequate circuit breaker . For older residences (e.g., Villeray–Saint-Michel–Parc-Extension, Ahuntsic, Mont-Royal), we also check the condition of the box and the branch circuit.

Freon, piping and lengths

• Refrigerant : R-32 (factory charge ~ 4.85 lbs ).

• Piping : 3/8 in (liquid) and 5/8 in (gas) — crucial for the 36k BTU.

• Maximum total length : up to 50 m (165 ft) ; vertical drop up to 30 m (98 ft) .

• Operating range : cooling −18°C to +46°C , heating −20.5°C to +24°C .

What we do on site : calculation of the pressure drop , addition of refrigerant if necessary beyond the factory charge, leak tests under nitrogen, vacuum draw, and validation by digital pressure gauges . Inside, we plan a reliable condensate drainage (slope, siphon if required) to avoid any flow on the finished wall.

Dimensions and architectural integration

• Indoor unit : approx. 43.3 × 11.8 × 10.2 in — wide format that diffuses far; installation height to adapt to open areas.

• Outdoor unit : approx. 37.4 × 37.2 × 14.6 in , with high noise level at 58 dB(A) under full load — provide sufficient clearance and an anti-vibration base (slabs + silent blocks) to prevent vibration transmission to the structure.

Warranties, parts and maintenance

• Standard factory warranty : 10 years compressor / 10 years parts (labor not included by default, extension options available upon registration).

• Wear parts : fan, electronic cards, probes and remote control are easily accessible; the internal design provides removable panels , a removable condensate tray and a detachable fan motor support to speed up service.

AirGreen Program : We offer annual preventative maintenance (internal/external battery cleaning, performance testing, electrical tightening, drainage check). This extends battery life, keeps energy consumption low, and prevents nuisance alarms.

Grants and local compliance

• Provincial grant (LogisVert) : $1,260 (updated July 17, 2025 ). We validate eligibility, prepare the compliant offer, then support the client file until submission.

• Compliance : installation according to the Quebec Building Code and the rules of the municipalities of Montreal, Laval, Longueuil, North Shore, South Shore (clearances, anchors, condensate drainage, electrical protection, outdoor locations).

• Noise pollution : when installing in narrow streets (Rosemont, Verdun, Plateau), we orient the unit to reduce sound reflection and respect property lines.

Who do we recommend the airHome 400 36k BTU to?

• Single-family homes with large open areas (living room-kitchen-dining room), often facing south .

• Duplex/triplex requiring full floor air conditioning/heating with few obstructions.

• Local businesses (offices, clinics, studios) when a powerful mono-split is preferable to a multi-zone.

Case study (Montreal North) : Replacement of an aging 30k unit with the airHome 400 36k in an enlarged bungalow. After adjusting the airflow and calibrating the condensate drain , the client reported an 18–22% reduction in summer consumption compared to the old unit (same weather conditions) and stable comfort in the rear family room.

Case study (Boucherville, South Shore) : installation on a raised base with a snow roof (accessory available) to prevent accumulation at the edge of the hedge. Result: maintenance of defrosting air flow and reduction of defrost cycles during episodes of blown snow .

AirGreen Engineering Tips for Project Success

1. Sizing : even with 36 k BTU, we perform a load calculation (envelope, fenestration, infiltration) to avoid oversizing and short cycles.

2. Indoor placement : aim for a clear range for the air jet ; avoid direct blowing onto living areas.

3. Outdoor placement : favor a clear area (air intake/exhaust) and an accessible service path .

4. Piping : Maintain proper bend radii , properly insulate the 5/8" gas line to limit losses and condensation.

5. Controls : Pair the remote to a GoodSleep schedule at night; use Eco Mode in mid-season to reduce costs.

Why choose AirGreen?

• 100% free on-site assessment and specific advice on the LogisVert grant .

• Transparent pricing , detailed quotes and zero down payment - payment at the end, once 100% satisfied .

• Certified refrigeration engineers , state-of-the-art tools, responsive after-sales service throughout Greater Montreal .

Pricing, availability and what's next

This model is in stock at our distributors in Quebec. Wi-Fi and a wall thermostat are optional ; the 10-10-0 warranty can be enhanced with extension programs. We offer turnkey installation , including brackets, anti-vibration mounts, drilling, compliant refrigeration materials, commissioning, and instructions for use.

Ready to upgrade your comfort? Contact us for a free on-site estimate in Montreal, Laval, Longueuil, North Shore, and South Shore . We'll validate your 36k BTU capacity , optimize your location, and prepare your grant application today.