Installation of a Tosot LomoPlus UltraHeat Wall-Mounted Heat Pump in Saint-Constant
Discover how AirGreen installed the Tosot LomoPlus UltraHeat in Saint-Constant, providing energy-efficient and quiet climate control, perfect for Canadian winters.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
Bringing Comfort to Saint-Constant: A Tosot LomoPlus UltraHeat Installation Story
At AirGreen, we pride ourselves on our commitment to excellence and customer satisfaction. Our recent installation of a Tosot LomoPlus UltraHeat Wall-Mounted Heat Pump in Saint-Constant on the South Shore is a testament to our dedication. This project highlights our team's expertise and the superior quality of the HVAC systems we offer.
Project Overview
Location: Saint-Constant, South Shore
Type of Machine: Mini Split | Wall-Mounted Heat Pump
Brand: Tosot
Model: LomoPlus UltraHeat
Size: 18,000 BTU
Grant: Eligible for a $1704 LogisVert Grant by Hydro-Québec
Why Choose the Tosot LomoPlus UltraHeat?
The Tosot LomoPlus UltraHeat is designed to meet the demands of Canadian winters and hot summers. This model boasts an Energy Star® rating, ensuring energy efficiency and cost savings. With WiFi capability, users can control the system remotely, adding a layer of convenience and modernity to their home climate control.
Key Features and Benefits
- Energy Efficiency: With a remarkable 24.5 SEER rating, the LomoPlus UltraHeat operates efficiently, reducing energy consumption and saving on utility bills.
- Noise Levels: The interior unit operates quietly, with a sound pressure level ranging from 34 to 51 dB(A), ensuring a peaceful indoor environment.
- Heating Capacity: Capable of heating efficiently down to -30°C, this heat pump ensures warmth even during the coldest Canadian winters.
- Warranty: Tosot offers a 10-year warranty on both the compressor and parts, providing long-term peace of mind.
Installation Details
Our team faced the challenge of ensuring the unit was seamlessly integrated into the living space of a cozy home in Saint-Constant. The homeowner, looking to upgrade their heating and cooling system, opted for the Tosot LomoPlus UltraHeat for its superior performance and energy efficiency.
Piping: The installation involved using 1/4 - 5/8 pipes to connect the interior and exterior units.
Voltage: The system operates on 220V, ensuring stable and efficient performance.
Gas: The system uses R-410A refrigerant, known for its environmentally friendly properties and efficiency.
The Installation Process
Preparation and Planning
Before beginning the installation, our team conducted a thorough assessment of the home to determine the optimal placement for the interior and exterior units. This planning stage is crucial to maximize the efficiency and performance of the heat pump.
Installation Steps
- Mounting the Interior Unit: The interior unit, with dimensions 43.3 x 9.8 x 12.8 inches, was mounted on an interior wall, ensuring it was level and securely attached.
- Setting Up the Exterior Unit: The exterior unit, measuring 38.5 x 16.8 x 31.1 inches, was placed on a sturdy base with a heating element to prevent condensate freezing.
- Connecting the Units: Using the specified piping, our team connected the interior and exterior units, ensuring all connections were secure and leak-free.
- Electrical Wiring: The system was connected to the home’s electrical system, with all wiring done according to safety standards and regulations.
- Testing and Calibration: After installation, the system was thoroughly tested to ensure it was operating correctly. This included checking the WiFi connectivity and setting the system parameters.
Exceptional Features
The Tosot LomoPlus UltraHeat is equipped with several advanced features that enhance its performance and user experience:
- Two-Stage Compressor: Developed by GREE, this compressor allows the heat pump to maintain high efficiency even in extreme temperatures.
- Intelligent Defrost: The microprocessor-controlled defrosting system activates only when necessary, saving energy.
- Memory Function: In case of a power outage, the system resumes operation with the last set parameters, ensuring continuous comfort.
- Compact Design: The sleek design of both units makes them less obtrusive and easier to install.
- Four-Way Louvers: The motorized louvers ensure optimal air distribution for maximum comfort.
- Self-Diagnosis: The built-in electronic monitoring system alerts the technician of any issues, reducing service time.
- I Feel Function: The remote control senses the room temperature and adjusts the settings accordingly for precise climate control.
- Turbo Mode: This feature increases airflow to quickly reach the desired indoor temperature.
Customer Satisfaction
The homeowner was delighted with the installation process and the performance of the Tosot LomoPlus UltraHeat. The system’s quiet operation and remote control features were particularly appreciated, as they allowed for seamless integration into their daily routine without disruption.
Conclusion
Choosing AirGreen for your HVAC needs means opting for quality, reliability, and exceptional service. Our installation of the Tosot LomoPlus UltraHeat in Saint-Constant showcases our commitment to providing top-notch HVAC solutions tailored to the unique needs of our clients. Whether you are in Montreal, Laval, Longueuil, North Shore, or South Shore, AirGreen is here to ensure your home remains comfortable year-round.
How it goes, from the first call to the end
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
And at your place?
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
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What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
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How cold can it heat?
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).