Mitsubishi Electric MSZ-AY · Supplied & Fitted in Exeter, Plymouth & Devon
Mitsubishi Electric MSZ-AY Air Conditioning
Advanced comfort, cleaner air and intelligent heating and cooling.
Enjoy outstanding comfort throughout the year with the Mitsubishi Electric MSZ-AY. Combining advanced inverter heat pump technology, ultra-quiet operation, built-in Wi-Fi and sophisticated air filtration, the MSZ-AY delivers efficient heating and cooling for modern homes and offices.
Its sleek, contemporary design and advanced comfort features make it an excellent choice for bedrooms, living rooms, home offices and open-plan spaces.
Energy-Efficient Heating & Cooling
Built-in Wi-Fi Control
Plasma Quad Plus Air Filtration
Ultra-Quiet Operation
Supplied & Fitted
From £1,872
Based on a standard 2.0 kW back-to-back installation of the MSZ-AY. Subject to survey.
Mitsubishi Electric MSZ-AY indoor unit
Why Choose Mitsubishi Electric MSZ-AY?
A high-quality residential system balancing advanced technology, quiet operation, energy efficiency and comfort. Some features are model dependent — we'll confirm exactly what's included on the capacity and model you choose.
Ultra-Quiet Operation
Selected MSZ-AY models operate at indoor sound pressure levels as low as approximately 18 dB(A) on their lowest fan setting — ideal for bedrooms, home offices and living rooms where low noise matters.
Built-in Wi-Fi Control
Compatible MSZ-AY models have integrated Wi-Fi and are managed through Mitsubishi Electric's MELCloud platform — remote temperature adjustment, heating and cooling mode selection, scheduling and smartphone control. We confirm the exact app compatibility for the model you choose.
Plasma Quad Plus Air Filtration
Advanced filtration technology on supported UK models, designed to help reduce certain airborne particles and allergens passing through the indoor unit. It does not eliminate all bacteria, viruses or allergens.
Dual Barrier Coating
Mitsubishi Electric's Dual Barrier Coating helps reduce the build-up of dust and dirt on selected internal components, supporting cleanliness and efficient operation.
Energy-Efficient Heating
Advanced inverter heat pump technology delivers efficient heating during colder months — an alternative to conventional direct electric heating.
Powerful Summer Cooling
Responsive cooling and precise temperature control during warmer weather.
Night Mode
Night Mode helps reduce operating noise and adjusts selected system indicators for more comfortable night-time use.
Advanced Airflow Control
Adjustable vanes help distribute heated and cooled air throughout the room.
Weekly Timer
Set heating and cooling schedules to match daily routines and manage electricity consumption.
Dehumidification
Helps reduce excess moisture in the air during suitable operating conditions.
R32 Refrigerant
Uses R32 refrigerant, with a lower global warming potential than older R410A systems.
Energy Efficiency
Efficient heating and cooling, all year round
Up to A+++
Cooling energy rating
Highest rating on the most efficient capacities
Up to A++
Heating energy rating
Rating varies by capacity
Model dependent
Seasonal heating efficiency
Published SEER & SCOP confirmed on quote
The Mitsubishi Electric MSZ-AY uses high-efficiency inverter heat pump technology to deliver comfortable heating and cooling while helping reduce electricity consumption compared with conventional electric resistance heating.
Seasonal efficiency figures measure performance across a whole season rather than at a single test point. Because the inverter modulates its output to hold the room at temperature, the MSZ-AY can maintain comfort without running flat out, which is where the running-cost benefits over autumn and winter come from.
Ratings and running costs depend on the exact model and capacity, the climate, your electricity tariff and how the system is used. Rather than applying one rating across the range, we'll confirm the published SEER, SCOP and energy label figures for the MSZ-AY model and capacity you choose.
Available System Sizes
We fit the Mitsubishi Electric MSZ-AY across the capacities below. Prices are the installed price for one room on a standard back-to-back installation.
| Nominal cooling capacity | Typical application | Installed from |
|---|---|---|
| 2.0 kW | Small bedrooms and home offices | £1,872 |
| 2.5 kW | Bedrooms and smaller living rooms | £1,949 |
| 3.5 kW | Medium-sized living rooms | £2,078 |
| 4.2 kW | Larger bedrooms and living spaces | £2,279 |
| 5.0 kW | Larger lounges and open-plan areas | £2,389 |
| 6.0 kW | Large living rooms and open-plan spaces | On quote |
| 7.1 kW | Large residential and light commercial spaces | On quote |
Correct air conditioning sizing depends on room dimensions, insulation, glazing, ceiling height and heat load. Frost Air Conditioning can advise on the most suitable system.
Calculate Your Installation PriceCleaner Air with Plasma Quad Plus
The Mitsubishi Electric MSZ-AY uses advanced filtration technology designed to help reduce certain airborne contaminants passing through the system. On supported UK models, Plasma Quad Plus is built into the indoor unit, so air passes through the filtration stages as part of normal operation.
Filtration performance depends on the exact model and on how the system is used and maintained. We'll confirm the filtration fitted to the MSZ-AY model you choose, and advise on servicing to keep it working as intended.
Air filtration works alongside ventilation rather than replacing it — it does not take the place of adequate fresh-air ventilation in a room.
- Dust particle reduction
- Allergen reduction
- Integrated air filtration
- Improved indoor comfort
- Easy maintenance
Designed for Peaceful Comfort
The Mitsubishi Electric MSZ-AY has been engineered to operate quietly, making it an excellent option for bedrooms and living spaces where comfort and minimal disruption matter. Selected models run at indoor sound pressure levels as low as approximately 18 dB(A) on the lowest fan setting.
Sound pressure figures vary by capacity and fan setting. We'll confirm the published figure for the exact MSZ-AY model you choose, together with where the indoor unit and outdoor unit are best positioned to keep noise to a minimum.
- Low-noise indoor operation
- Night Mode
- Smooth inverter operation
- Comfortable airflow distribution
- Suitable for bedrooms and home offices
Mitsubishi Electric Manufacturer Warranty
Your Mitsubishi Electric MSZ-AY air conditioning system is backed by the applicable manufacturer's warranty, providing protection against qualifying manufacturing defects in accordance with Mitsubishi Electric's warranty terms and conditions.
Every Mitsubishi Electric system we fit comes with a 3 year manufacturer warranty. Cover depends on correct installation and commissioning, product registration and servicing to Mitsubishi Electric's terms, and we register the system for you.
Your installation is also covered by our own workmanship guarantee. Ask us for the details.
Compare Mitsubishi Electric Models
Here's where the MSZ-AY sits within the Mitsubishi Electric wall-mounted range we install most often.
| Feature | MSZ-HR | MSZ-AP | MSZ-AY | MSZ-LN |
|---|---|---|---|---|
| Heating & Cooling | Yes | Yes | Yes | Yes |
| Wi-Fi | Model dependent | Model dependent | Built in on supported models | Model dependent |
| Quiet Operation | Yes | Yes | Ultra-Quiet | Ultra-Quiet |
| Advanced Filtration | Basic | Optional | Plasma Quad Plus | Plasma Quad Plus |
| Dual Barrier Coating | No | Model dependent | Yes | Yes |
| 3D i-see Sensor | No | No | No | Yes |
| Product Positioning | Entry Level | Mid-Range | Premium Everyday | Premium Designer |
The MSZ-HR offers excellent value for straightforward heating and cooling. The MSZ-AP provides additional comfort and control features, while the MSZ-AY adds advanced filtration, quieter operation and modern smart technology. The MSZ-LN offers further intelligent comfort features.
Expert Mitsubishi Electric MSZ-AY Installation
Frost Air Conditioning supplies and professionally installs Mitsubishi Electric air conditioning systems throughout Exeter, Newton Abbot, Plymouth and the surrounding areas. Every install is carried out by our own REFCOM registered, F-Gas certified engineers — we size the system to your rooms, agree where the indoor and outdoor units go, keep the pipework and trunking tidy, and walk you through the controls before we leave.
The MSZ-AY's filtration, quiet operation and Wi-Fi features are set up and demonstrated on the day, so you leave with the system running the way it was designed to. Optional servicing and maintenance is available to keep it that way.
Covering Exeter, Newton Abbot, Plymouth and surrounding areas.
- F-Gas-certified installation
- Professional room sizing and heat-load assessment
- Advice on indoor and outdoor unit positioning
- Neat pipework and trunking installation
- Assessment of electrical requirements
- System pressure testing and commissioning
- Wi-Fi and MELCloud setup guidance
- Demonstration of system controls
- Optional ongoing servicing and maintenance
Mitsubishi Electric MSZ-AY Gallery
Genuine Mitsubishi Electric MSZ-AY product photography, together with typical installations in homes across Devon.