Cassette Air Conditioning Units

The indoor cassette unit body holds the coil, fan, drain tray and drain pump. It is suspended from the slab with threaded rods and sits within the ceiling void.

The visible panel covers the ceiling opening and includes the return air grille and supply louvers. Its clean square or round design blends with modern interiors.

A centrifugal turbo fan pulls air up through the filter and pushes it across a wrap-around evaporator coil. This design delivers strong airflow with low noise.

The drain tray collects condensate from the coil, and the drain pump lifts it to the drain pipe. A float switch stops the unit if water rises too high, protecting your ceiling.

Washable filters behind the return grille trap dust and particles. Many models accept optional purification filters for better indoor air quality.

The outdoor unit houses the compressor, condenser coil and fan. Inverter compressors adjust speed to demand, cutting power use in offices with varying occupancy.

Cassette ACs work with wireless remotes or wall-mounted wired controllers. Wired controllers are preferred in commercial spaces for central scheduling, lock functions and BMS integration.

The four way cassette AC is the most common commercial cassette AC. It blows air in four directions from the centre of the room, making it ideal for offices, showrooms and conference rooms. A 4-way cassette AC for commercial space typically ranges from 2 to 4 ton.

A 360 degree cassette AC, also called a round cassette AC, spreads air in a full circle. It eliminates corner hot spots and draughts, delivering the most even cooling in square or irregular rooms.

A one way cassette air conditioner, also called a single flow or single way cassette AC, throws air in one direction and fits along walls, corridors and narrow spaces. A 2 way cassette AC blows air to two opposite sides and suits long, rectangular rooms such as bank halls and classrooms.

A compact cassette air conditioner fits a standard 600 x 600 mm ceiling grid, replacing one ceiling tile. These mini cassette air conditioners, usually 1 to 2 ton, suit cabins, small offices, clinics and even a ceiling cassette air conditioner for home use.

An inverter cassette AC for office use usually recovers its extra cost quickly, as offices run the AC for 8–12 hours a day.

In larger buildings, a VRF cassette indoor unit or VRV cassette AC connects to a central VRF outdoor system. This lets many rooms and floors share one outdoor plant with individual control, making the cassette AC for VRF system use common in corporate offices, hotels and hospitals.

In buildings with a central chiller plant, chilled water cassette fan coil units (FCUs) circulate chilled water instead of refrigerant. They are used in malls, IT parks, hotels and hospitals with central HVAC.

• 1 – 1.5 Ton: Compact cassettes for cabins, clinics and small offices.
• 2 Ton Cassette AC: Conference rooms, small showrooms, cafés.
• 2.5 – 3 Ton Cassette AC: Open offices, retail stores, restaurants.
• 4 Ton and above: Large halls, banquet areas, gyms; often combined as multiple units.

This chart assumes a 10 ft ceiling and normal commercial load. We confirm capacity after a detailed heat load calculation.

• Occupancy: Restaurants, classrooms and gyms need more capacity per sq ft than offices.
• Glass area: Large glass facades in showrooms add significant solar heat.
• Equipment: Computers, kitchen equipment, lighting and display screens add heat.
• Ceiling height: High ceilings need higher capacity and correct air throw.
• Floor level and exposure: Top floors and west-facing spaces need extra margin.

Send us your floor plan, and our engineers will calculate the exact cassette AC cooling capacity and positions for your space.

An inverter cassette air conditioner runs the compressor at the speed the room actually needs. When occupancy drops at lunch or after hours, power use drops too. Compared with fixed-speed units, inverter models can cut energy consumption by 30–50% in typical office use.

Cassette ACs are compared using EER, ISEER or seasonal efficiency figures, and many inverter models carry BEE star ratings. A higher rating means more cooling for every unit of electricity. Our team helps you compare efficiency figures across brands for your usage pattern.

Most modern cassette ACs use R32 or R410A. An R32 cassette AC offers high efficiency, a smaller refrigerant charge and lower global warming potential. R410A remains common in larger capacities and VRF cassette units.

Most cassette bodies need a ceiling void of about 250–350 mm between the slab and false ceiling, depending on the model. Compact and slim ceiling cassette air conditioners need less depth.

Standard cassette ACs work best at finished ceiling heights of about 2.7 to 3.5 metres. Higher ceilings need units with high-ceiling settings or stronger air throw to reach the occupied zone.

The false ceiling opening must match the unit body, typically about 840–890 mm square for standard 4-way units and about 570–600 mm for compact 600 x 600 models. Exact sizes vary by brand and are shared with your interior team.

The indoor unit is hung from the concrete slab using anchor fasteners and threaded rods, never from the false ceiling framework. This keeps it level, secure and vibration-free.

Removable access panels near refrigerant joints, the drain connection and the control box make future servicing easy without breaking the ceiling.

A ceiling mounted cassette AC with 4-way airflow or 360° round flow delivers uniform air distribution, eliminating hot and cold spots in open areas.

Individual louver control lets you adjust or close each outlet separately. This is useful when a unit sits near a wall, a glass facade or a workstation that should not get direct airflow.

A built-in drain pump lifts condensate so drain lines can be routed neatly above the ceiling, even when the nearest drain point is higher than the unit.

Many cassettes offer a cassette AC fresh air intake knockout to connect treated outdoor air. This improves indoor air quality in meeting rooms, classrooms and clinics.

Optional PM 2.5, anti-bacterial and ioniser filters help reduce dust, allergens and airborne germs in busy commercial spaces.

Advanced models use infrared sensors to detect people and floor temperature. They redirect airflow and reduce output when rooms are empty, saving energy automatically.

A smart cassette AC with Wi-Fi control lets managers monitor and schedule units remotely. Cassette AC BMS integration links units to building management systems for central control across floors or sites.

A low noise cassette AC runs quietly enough for boardrooms, banks, clinics and hotel lobbies, keeping conversations and presentations undisturbed.

Standard cassettes need a false ceiling with enough void depth. A cassette AC without false ceiling is possible only with special exposed frames or boxing, which affects the look.

Ceiling work, suspension, drain routing and coordination with interiors make cassette AC installation costlier than a wall mounted split AC.

The drain pump and tray must be cleaned regularly. A neglected pump can cause water dripping on the ceiling.

In very small rooms, a standard cassette may be oversized and costly. A hi wall split AC or compact cassette is usually more practical.

Daikin offers a wide range of round flow and 4-way cassettes, along with VRV cassette indoor units. Contact us for current daikin cassette air conditioner price details and daikin ceiling mounted air conditioner options.

Blue Star is a trusted name in commercial cooling, offering reliable cassette ACs for offices, retail and hospitality projects.

Voltas cassette ACs offer dependable performance and value across popular commercial capacities.

LG cassette ACs feature inverter compressors, 4-way and round flow panels and smart control options for modern commercial spaces.

A samsung cassette air conditioner or samsung ceiling cassette air conditioner features wind-free cooling that spreads air gently through micro-holes, reducing direct draughts.

Mitsubishi electric cassette ac models are known for quiet operation and premium build. Mitsubishi ceiling cassette air conditioner and mitsubishi electric ceiling air conditioner options suit executive offices and high-end commercial interiors.

Carrier cassette ACs offer robust cooling for commercial buildings, restaurants and retail spaces.

Hitachi cassettes are known for strong compressors and dependable performance in high ambient temperatures.

O General cassette ACs are known for durable build and efficient cooling in commercial and residential applications.

Position the unit centrally in its cooling zone, away from light fittings, beams and sprinklers. Keep enough clearance from walls so all outlets can throw air freely, and avoid placing it directly above workstations or seating.

The unit is hung from the slab using anchor fasteners and threaded rods, then levelled precisely. Correct levelling is essential for proper drainage and quiet running.

Copper pipes are sized to the manufacturer's specifications and kept within the maximum length and height limits. Both lines are fully insulated to prevent condensation dripping onto the false ceiling.

Drain pipes are routed with a steady downward slope after the pump's lift point and insulated to avoid sweating. We test the drain pump by pouring water into the tray before closing the ceiling.

The outdoor unit is placed in a well-ventilated area with enough clearance for airflow and service, on a sturdy stand with anti-vibration pads.

Each unit gets a dedicated power supply with the correct MCB or isolator, properly rated cables and earthing. Voltage protection is added where supply fluctuates.

The system is pressure tested for leaks, vacuumed to remove air and moisture, and charged with additional refrigerant for long pipe runs. We then check pressures, temperatures, airflow and controls before handover.

Ask us for a clear, itemised cassette AC installation quote before work begins.

Clean filters every 2–4 weeks in busy commercial spaces, and monthly in lighter-use areas. Dirty filters restrict airflow and increase power consumption.

The evaporator coil and turbo fan are cleaned with coil cleaner 2–4 times a year to remove dust and biological growth that reduce cooling.

The drain tray and pump are flushed and cleaned during each service to prevent sludge, blockages and ceiling leaks.

Our technicians check refrigerant pressures and inspect joints for leaks. Leaks are repaired before any gas charging.

Our cassette AC service plans are tailored for single sites, multi-location businesses and large commercial buildings.

Prices vary with inverter technology, round flow or wind-free panels, smart controls and brand. VRF cassette indoor units are priced as part of the overall VRF project.

Cassette AC installation cost depends on the site. Typical elements include:

• Indoor unit suspension, levelling and panel fixing
• Copper piping, insulation and cable runs
• Drain piping and drain pump testing
• Outdoor unit stand and anti-vibration pads
• Core cutting and ceiling coordination
• Additional refrigerant for long pipe runs
• Electrical point, MCB or isolator

We provide a transparent, itemised quote so you know the full cassette air conditioner cost upfront.

• Capacity and number of units
• 1-way, 2-way, 4-way or 360° panel type
• Inverter or non-inverter compressor
• Brand, efficiency and warranty
• Air purification, fresh air, sensor and Wi-Fi features
• Piping length, ceiling height and site access
• False ceiling and drain routing requirements