LENNOX M33D 4-Way (3 x 3) Ceiling Cassette | 18,000 BTU | Samsung

High-end HVAC performance for your residential and commercial spaces in Montreal, Laval and beyond

At AirGreen, we know that an efficient and discreet heating, ventilation and air conditioning (HVAC) system can transform the comfort of a space, while promoting energy efficiency. The LENNOX M33D 18,000 BTU 4-way ceiling cassette , powered by Samsung technology and running on R-32 freon , is a must-have solution for residential and commercial properties in Montreal, Laval, Longueuil, North Shore and South Shore .

A HVAC cassette designed for performance, comfort and discretion

Uniform comfort thanks to 4-way air diffusion

This 3 x 3 cassette model distributes air in four distinct directions , ensuring even coverage throughout the entire room. This design eliminates hot or cold spots and ensures a uniform temperature, ideal for open spaces such as offices, meeting rooms, retail stores, or even residential common areas.

“Calm Air” technology for absolute comfort

Samsung's exclusive Calm Air technology uses thousands of micro-perforations on the cassette panel to deliver a soft, non-perceptible airflow that meets ASHRAE standards (<30 fpm) . This feature eliminates direct air currents and creates a comfortable atmosphere without noise or the feeling of blowing.

Compact, quiet and versatile unit

Format optimized for false ceilings 36 x 36 in

With dimensions of 37.38 x 37.38 x 9.75 inches , this unit fits perfectly into a standard suspended ceiling , making it a natural choice for commercial or professional environments where space is limited.

Reduced noise level

Operating at just 30 to 36 dB(A) , this cassette is ultra-quiet , comparable to a library or whisper. It is therefore perfectly suited to noise-sensitive environments: medical clinics, law offices, classrooms, bedrooms .

Robust design

The galvanized steel housing protects the internal components against wear and corrosion, ensuring increased durability , even under heavy use conditions.

Smart control and mobile connectivity

Built-in Wi-Fi and SmartThings compatibility

The unit can be controlled remotely via the SmartThings app, allowing you to change settings, track energy usage and set up smart scenes or automations .

Features like geofencing , energy monitoring and AI Auto mode allow the system to learn your habits and continuously optimize its operation for maximum comfort .

Smart and programmable remote controls

The model supports:

• USB and solar rechargeable wireless remote control

• Touch wall controllers with color display

• Programmable controllers with weekly schedules, sensors, child lock and 24V thermostat compatibility

Professional installation with AirGreen

Field experience: concrete installations in Montreal and the surrounding area

At AirGreen, we have installed this unit in several different settings, including:

• A conference room in Laval , where temperature uniformity was crucial for employee comfort.

• A dentist's office in Longueuil , which benefited from quiet and discreet operation.

• A high-end condo in Brossard , where integration into a false ceiling was an aesthetic imperative.

In each case, our certified refrigeration engineers carried out the installation without modifying the existing structure, in compliance with RBQ safety standards.

Connection flexibility and easy maintenance

Thanks to its flare connections (1/4 - 1/2 in) and its integrated drainage pump , installation is quick, clean, and meets building requirements. The integrated washable filter also allows for simplified maintenance for users.

Main technical characteristics

Why choose AirGreen for your HVAC cassette?

• Free on-site estimate in Montreal, Laval, Longueuil, North Shore, South Shore

• No deposit required : you pay at the end, only if you are 100% satisfied

• Expert technicians , specialized in ceiling cassette installations in complex environments

• Clear and transparent offer , validated before any work begins

• Fast and accessible after-sales service , with personalized customer follow-up

What our customers say

“The Lennox cassette installation was impeccable. The silence is impressive, you don't even notice it! Thanks to the entire AirGreen team.” — Business owner in Saint-Eustache

“A discreet, efficient, and easy-to-use solution. I can control the temperature of my living room from my phone.” — Residential customer in Montreal

Residential and commercial adaptability

This cassette can be installed in:

• Professional offices

• Commercial spaces (shops, restaurants)

• Apartments, condos and single-family homes

• Medical or educational institutions

Available accessories (optional)

• Facade panels with micro-holes for “Calm Air”

• Ultra-quiet condensation pumps

• Programmable wired wall controllers

• 24V thermostat adapters

• 160 Foot Drain Line Kit

• Additional SmartThings Wi-Fi connectors

At AirGreen , we carefully integrate each LENNOX M33D 18,000 BTU ceiling cassette , respecting the aesthetic, acoustic and energy expectations of our customers. Our in-depth knowledge of residential and commercial environments in Montreal and its surrounding areas allows us to offer you tailor-made, reliable and high-value recommendations.

Your comfort is our specialty.

Call us today at 514-316-2973 or email sales@airgreen.ca to get a free estimate and discover how this cassette can transform your space. Also, come visit our showroom in Boucherville for a hands-on demonstration!