HITACHI airHome800 Wall-Mounted Heat Pump | 9000 BTU (-30°C)

• WiFi: Included
• Warranty (Compressor - Parts - Labor): 10-10-0
• Additional Warranty: Possible
• Piping: 1/4 - 3/8
• Voltage: 220 V
• Sound Pressure Level (Outdoor): 52.0 dB(A)
• Sound Pressure Level (Indoor): 30 / 46 dB(A)

High-efficiency wall comfort designed for Greater Montreal

At AirGreen, we install wall-mounted heat pumps that truly meet the needs of homes in Montreal , Laval , Longueuil , North Shore and South Shore . The HITACHI airHome800 9000 BTU is our compact solution for main rooms and apartments that want reliable heating down to -30°C and precise cooling in the summer, while reducing energy consumption.

Performance adapted to the Quebec winter

Performance and key figures

• Capacity : 9,000 BTU cooling (range 4,500–12,000 BTU/h) and up to 12,000 BTU/h nominal heating — ideal for a small open area or well-insulated upper floor.

• Efficiency : SEER2 26.5 and EER2 16.1 for very economical cooling; HSPF2 12.0 (Region 4) / 9.7 (Region 5) for efficient heating in our climate.

• Heat retention : 100% capacity at -20°C ; continuous operation down to -30°C , making it a serious option to reduce dependence on traditional electric heating.

• Quiet : 30 to 46 dB(A) indoors depending on the mode—a discreet level that blends into everyday life. The outdoor unit displays 52 dB(A) at high speed.

• Dehumidification : up to 2.1 L/h on the 9,000 BTU version in Dry mode, practical on humid days in Montreal and Longueuil .

Technologies that make the difference

• R32 : refrigerant with lower global warming potential than R410A, more efficient for residential HVAC .

• Adaptive Defrost 3.0 : optimized defrosting with intelligent cycle management to retain heat and limit stops even at -20°C .

• HeatForce : rapid temperature rise at the start of the cycle, useful when returning home in cold weather on the North Shore .

Healthier air, more comfortable home

Complete self-cleaning

• FrostWash 3.0 : Freezes, traps, and then eliminates dust and micro-particles on the heat exchanger to reduce odors and fouling. The result: consistent heat exchange and more stable air quality .

• DuraSpin : reverse rotation to remove large dust particles before they stick.

• Mold Guard 2.0 : 24/7 internal humidity and temperature monitoring; the device automatically dries the interior when mold-promoting conditions appear. Ideal for compact homes in Laval and the South Shore .

Filtration and daily comfort

• PM2.5 filter with integrated activated carbon to capture fine particles and reduce household odors.

• Airflow : fins and wave-blade fan for even blowing and low noise levels in the evening.

Connected home and energy savings

• Wi-Fi included (internal adapter) and airCloud Go app: remote control, weekly programming, energy cost monitoring and notifications.

• Smart-Fence : Automatically adjusts operation when you leave or arrive.

• Smart Eco : detects absence, reduces power after ~20 min and resumes your settings upon your return.

• SleepSense : fine regulation during the night according to your preferences to stabilize the temperature and limit overconsumption.

Clean integration and AirGreen service

Key technical data for installation

• Units : indoor RAK-XJ09PHAA , outdoor RAC-XJ09WHAA .

• Power supply : 230 V / 1 Ph / 60 Hz (MCA 14 A; MOP 25 A).

• Piping : 1/4" liquid – 3/8" gas ; maximum linear length 30 m ; maximum height difference 20 m .

• Factory load : 1.2 kg ; possibility of adding more depending on length.

• AHRI : 215911630 ; ENERGY STAR® , including Cold Climate .

Compact templates

• Indoor unit : 1050 × 255 × 294 mm (W × D × H) — fits easily above a patio door or corridor.

• Outdoor unit : 850 × 298 × 650 mm — metal casing, blue anti-corrosion coating to last in Montreal and saline areas of the South Shore .

Recent case studies by AirGreen

Condo in Griffintown (Montreal)

For a 3 1/2 facing southwest, we chose the airHome800 9,000 BTU . Objectives: to limit summer overheating and provide a supplement in mid-season. Result: reduced annual air conditioning consumption according to the application monitoring, and improved nighttime comfort thanks to SleepSense . The neighbors do not hear the outdoor unit (enclosed interior courtyard), a sensitive point for the union.

Duplex in Chomedey (Laval)

Replacing an aging 9k BTU wall heater . The owners wanted reliable operation at -25°C to limit baseboard use. Adaptive Defrost kept the heat stable during the January cold snap. Dry mode resolved humidity spikes associated with the open kitchen.

Townhouse in Longueuil (South Shore)

Installation on the rear facade with a refrigeration path of 18 m and a difference in level of 6 m . The wide mounting plate and service access (motor/drainage) accelerated installation. After adjusting the shutters and the programming , customers noted a reduction in residual cooking odors thanks to the activated carbon + FrostWash .

Good usage practices

• Size correctly : 9,000 BTU is suitable for moderately sized rooms and well-insulated spaces; for open areas or high ceilings, estimate 12,000 BTU and above.

• Interior positioning : clear 15–20 cm from the ceiling; avoid closed niches to avoid disrupting the air flow.

• Maintenance : Rinse pre-filter every 4–6 weeks in summer; activate FrostWash seasonally; inspect annually by an HVAC technician.

• Winter : keep the outdoor unit clear; provide snow deflectors if the site is swept by winds (common on the North Shore ).

Common mistakes to avoid

• Undersize to “save money”: the device will run too fast, be more audible and wear out more.

• Drilling the wall too low for the drain: risk of reverse slope and internal dripping.

• Ignore the actual length of the refrigeration journey: beyond pre-charging, an R32 top-up and a rigorous vacuum are essential.

• Do not set the programming: without a weekly calendar , you lose some of the efficiency gains.

Why choose AirGreen for your installation in Montreal, Laval and Longueuil?

• Local expertise : thousands of HVAC installations in Montreal , Laval , Longueuil , North Shore and South Shore , with mastery of the constraints of brick, block and lightweight structure buildings.

• Technical support : thermal assessment, location advice, sizing, 230 V electrical verification and vibration attenuation options.

• Careful commissioning : calibrated flaring, deep vacuum , leak test, flow balancing, airCloud Go configuration with you.

Datasheet — airHome800 9,000 BTU (selection)

• Models : interior RAK-XJ09PHAA | exterior RAC-XJ09WHAA

• Nominal Cooling : 9,500 BTU/h (4,500–12,000)

• Nominal heating : 12,000 BTU/h (3,800–15,800)

• SEER2 : 26.5 | EER2 : 16.1

• HSPF2 : 12.0 (R4) / 9.7 (R5)

• COP (47°F / 8°C) : 4.0 | COP (17°F / −8°C) : 2.9

• Internal sound levels : 30/34/39/44/46 dB(A) (SL→HH)

• External noise level : 52 dB(A) (High)

• Operating ranges : cold −20 to +46 °C | hot −30 to +24 °C

• Internal dimensions. : 1050 × 255 × 294 mm | ≈14kg

• Ext. dimensions : 850 × 298 × 650 mm | ≈41kg

• Power supply : 230 V / 1 / 60 Hz | MCA 14 A | MOP 25 A

• Refrigerant : R32 (factory charge 1.2 kg )

• Piping : 1/4" – 3/8" | max length 30 m | height difference 20 m

• Dehumidification (9 k) : 2.1 L/h

Quick FAQs

Is 9,000 BTU enough for a 4 1/2 in Montreal?
Often yes for the main area if the insulation and sealing are correct. We validate on a case-by-case basis (orientation, glazing, floor, infiltrations).

Can the heat pump be controlled remotely?
Yes, built-in Wi-Fi and airCloud Go app: start/stop, modes, settings, programming, energy monitoring.

What about noise at night?
Silent mode drops to ≈30 dB(A) on the interior side, suitable for open bedrooms or adjoining living rooms.

What savings can you expect?
With SEER2 26.5 and Smart Eco programming, the gains in summer are significant; in winter, maintaining power down to −20 °C reduces the need for baseboard heaters. Results vary depending on the building envelope.

Need a quote or a consultation for the HITACHI airHome800 | 9000 BTU (-30 °C) Wall-Mounted Heat Pump ? Contact the AirGreen team. We operate in Montreal , Laval , Longueuil , North Shore and South Shore for a neat, efficient and durable HVAC installation.