About the SRF50ZSX-W
The Mitsubishi Heavy Industries SRF50ZSX-W is a premium floor-standing indoor unit, designed to deliver powerful and efficient year-round climate control with a touch of elegance. Its stylish white, semi-flat front panel allows it to blend seamlessly into a wide variety of interiors, from modern living rooms and conservatories to quiet home offices and small commercial spaces. This unit is specifically the indoor component and requires pairing with a compatible MHI outdoor unit to create a complete air conditioning system.
Delivering a nominal 5.0kW of cooling and a substantial 6.0kW of heating, the SRF50ZSX-W is well-suited for medium to large rooms. At its core is advanced inverter technology that modulates its output to precisely match the room's needs, resulting in stable temperatures, reduced energy consumption, and lower running costs. This efficiency is reflected in its excellent A++ energy labels for both cooling (SEER 7.5) and heating (SCOP 4.6), ensuring high performance without high electricity bills.
Air quality is a key focus of the SRF series. The unit comes equipped as standard with Mitsubishi’s innovative Allergen Clear Filter, which captures airborne allergens like pollen, dust, and pet dander. An associated Allergen Clear Operation then deactivates these captured particles using sophisticated temperature and humidity control. This is complemented by a photo-catalytic washable deodorising filter that traps and neutralises unpleasant odours, keeping the air fresh and clean.
Comfort is enhanced through a sophisticated dual airflow system. The unit features both upper and lower air outlets, which operate intelligently depending on the mode. In heating mode, warm air is directed downwards to warm the space from the floor up, preventing stratification and cold feet. In cooling mode, cool air is directed upwards and outwards to circulate gently without creating uncomfortable drafts. The flap control system also allows the user to manually adjust the direction of airflow for personalised comfort. Despite its powerful output, the unit operates quietly, with sound levels as low as 28 dB(A) in its quietest setting.
Installation flexibility is a major advantage. The SRF50ZSX-W has a slim profile, with a depth of just 238mm, allowing it to be installed discreetly against a wall. It can be floor-standing, mounted on a low wall (ideal for conservatories), or even semi-concealed. To simplify the installation process, piping and drain connections can be made from six different directions (right, left, or rear). Please note that UK regulations require that any air conditioning system containing fluorinated greenhouse gases must be installed by an F-Gas certified engineer. This is essential for safety, compliance, and to ensure the validity of the manufacturer's warranty.
Applications
- Living rooms and large family rooms
- Conservatories and sunrooms with low walls
- Bedrooms and home offices requiring quiet operation
- Small retail spaces and boutique shops
- Commercial offices and meeting rooms
- Loft conversions with restricted wall height
Installation guidance
- This is an indoor unit and must be paired with a compatible MHI outdoor unit.
- Installation must be carried out by an F-Gas certified engineer.
- Suitable for floor-standing, low-wall mounted, or semi-recessed installation.
- Slim depth of 238mm allows for placement in tight spaces.
- Flexible pipe and drain connections from 6 different directions simplifies fitting.
- Requires 1/4 inch liquid line and 1/2 inch suction line pipework.
- The system is pre-charged for a pipe length of up to 15 metres.
- Maximum vertical height difference between indoor and outdoor units is 20 metres.
Frequently asked questions
Is this a complete air conditioning system?
No, this product (model SRF50ZSX-W) is the indoor floor console unit only. It requires connection to a compatible Mitsubishi Heavy Industries outdoor unit to function.
Does this unit provide heating as well as cooling?
Yes, the SRF50ZSX-W is a reverse-cycle air source heat pump. It delivers highly efficient heating during the winter and powerful cooling in the summer.
How quiet is this unit?
It's designed for quiet operation. The sound pressure level in the ultra-low cooling mode is just 28 dB(A), which is comparable to a soft whisper, making it ideal for bedrooms.
Can I control the air conditioner from my phone?
Yes, the unit is Wi-Fi ready. By purchasing and installing the optional Wi-Fi adapter, you can connect the system to your home network and control it remotely via a smartphone app.
