Mitsubishi Electric SLZ-M25FA 2.5kW 4-Way Ceiling Cassette
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The Mitsubishi Electric SLZ-M25FA is a premium 600x600mm 4-way ceiling cassette designed specifically for modern suspended ceiling grids. This compact unit is an exceptional choice for small to medium-sized offices, retail spaces, or high-end residential rooms where aesthetics and performance are paramount. Featuring advanced inverter technology, it provides whisper-quiet operation and superior energy efficiency, ensuring your environment remains comfortable without excessive power consumption. The unit includes a built-in drain pump for flexible installation and supports the optional 3D i-see Sensor, which intelligently scans the room to detect occupancy and adjust airflow for maximum comfort and energy savings. With its sleek, modern grille design, it integrates seamlessly into any interior. This reverse-cycle system provides both powerful cooling and efficient heating, making it a versatile year-round climate control solution for the UK market.
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Smart-home ready
Connects natively with the systems below — control by app or voice.
- Free UK mainland delivery on in-stock units
- Manufacturer warranty included
- 14-day returns
Downloads & specs
More from Mitsubishi Electric →Manufacturer instructions
The Mitsubishi Electric SLZ-M series must be installed by a qualified professional technician using only authorized accessories. The unit is designed for mounting within a 600mm x 600mm suspended ceiling grid. Installation requires precise refrigerant piping connections using specified copper tube sizes (6.35mm liquid/9.52mm gas for the M25 model) and proper flaring techniques to prevent leaks. Electrical connections must adhere to local regulations. After installation, the system must be checked for refrigerant leaks, as escaping gas near open flames can release poisonous substances. Before initial power-on, ensure all panels and guards are securely in place. Do not start operation immediately after turning on the power switch to avoid damaging internal components; allow the system to stabilize according to the manufacturer's startup procedures.
Fixed units must be installed by a qualified F-gas engineer. Find an installer — we'll match you with a local HVAC professional.
Full Specifications
Description
The Mitsubishi Electric SLZ-M25FA is a premium 600x600mm 4-way ceiling cassette designed specifically for modern suspended ceiling grids. This compact unit is an exceptional choice for small to medium-sized offices, retail spaces, or high-end residential rooms where aesthetics and performance are paramount. Featuring advanced inverter technology, it provides whisper-quiet operation and superior energy efficiency, ensuring your environment remains comfortable without excessive power consumption. The unit includes a built-in drain pump for flexible installation and supports the optional 3D i-see Sensor, which intelligently scans the room to detect occupancy and adjust airflow for maximum comfort and energy savings. With its sleek, modern grille design, it integrates seamlessly into any interior. This reverse-cycle system provides both powerful cooling and efficient heating, making it a versatile year-round climate control solution for the UK market.
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Mitsubishi ElectricAnnual energy savings estimate
How much this A++-rated unit could save versus a standard C-rated model, based on your usage.
This unit
69 kWh/yr
EER 13
Standard model
112 kWh/yr
EER 8
Est. saving
£11.64
43 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (8,500 BTU). Actual savings vary with room size, climate and usage patterns.
Winter heating cost: this AC vs electric heaters
This unit reverses to heat your room in winter. Based on its 3 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£623
This AC / season
£208
You save / season
£415
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 769 kWh | £208 | Up to 300% | |
| Plug-in electric heater | 2308 kWh | £623 | 100% | |
| Electric storage heater | 2308 kWh | £623 | 100% |
Heat output estimated from this unit's 10,500 BTU/hr rating. A heat pump moves heat (COP ≈ 3), so it uses about a third of the electricity of a direct-electric heater for the same warmth. Actual savings vary with room size, insulation, tariff and usage. See the full comparison →
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