About the FDE125VH
The Mitsubishi Heavy Industries FDE125VH is a high-capacity indoor air conditioning unit designed for ceiling-suspended installation. It is an ideal climate control solution for commercial environments such as large offices, retail stores, restaurants, and gyms where wall and floor space is at a premium and powerful, even air distribution is essential. With a nominal cooling capacity of 12.5kW and a heating capacity of 14.0kW, this unit is engineered to maintain comfortable temperatures in spacious interiors year-round.
Featuring a slim and unobtrusive design, the FDE125VH has a height of just 250mm, allowing it to blend seamlessly into most commercial settings without imposing on the available headroom. Its clean white finish and modern aesthetic ensure it complements professional interiors. The unit's construction prioritises both performance and discretion, delivering substantial airflow while maintaining low noise levels, a critical factor for productive offices and relaxing customer-facing environments.
Energy efficiency is a core feature of the FDE125VH. When paired with a compatible Mitsubishi Heavy Industries outdoor unit, it can achieve excellent seasonal efficiency ratings, reflected in its A++ label for cooling (SEER 6.03) and A+ for heating (SCOP 4.3). This performance is driven by an efficient DC fan motor and advanced heat exchanger technology, which help to reduce electricity consumption and lower operational costs over the unit's lifespan.
The unit provides superior airflow control. An advanced flap system allows for precise management of air direction, ensuring consistent temperature distribution across the room and preventing uncomfortable draughts. The system offers multiple fan speeds, with airflow ranging from 17.0 to 29.0 m³/min, allowing users to balance between powerful circulation and quieter operation as needed. Installation is made straightforward thanks to a flexible design that allows refrigerant piping to be connected from the top, rear, or right-hand side, while the drainpipe can be routed to the left or right. This adaptability, combined with a potential maximum pipe length of 50 metres, gives installers considerable freedom when positioning the indoor and outdoor components. The FDE125VH operates on a standard single-phase power supply. As part of Mitsubishi Heavy Industries' professional range, this indoor unit must be installed by a qualified F-Gas certified engineer. This is a legal requirement in the UK and is essential for ensuring safety, optimal performance, and the validity of the manufacturer's warranty. The unit is designed for use with R32 refrigerant, which has a significantly lower Global Warming Potential (GWP) than older refrigerants, contributing to a reduced environmental footprint.
Applications
- Large open-plan offices
- Retail showrooms and department stores
- Restaurants, pubs, and cafes
- Gymnasiums and sports halls
- Hotel lobbies and conference rooms
- Educational facilities like classrooms and libraries
Installation guidance
- Must be installed by an F-Gas certified engineer to comply with UK regulations.
- This is an indoor unit and requires a compatible MHI outdoor unit to function.
- Designed for suspension from the ceiling, ideal for spaces without a false ceiling void.
- Refrigerant pipes can be connected from the rear, right, or top of the unit.
- The drain pipe can be arranged for either a left or right-side exit.
- Supports a maximum pipe run of 50 metres between indoor and outdoor units.
- Requires a single-phase (240V/50Hz) electrical supply.
- Servicing and maintenance can be carried out from the underside of the unit.
Frequently asked questions
Is the FDE125VH a complete air conditioning system?
No, the FDE125VH is an indoor unit only. It must be combined with a compatible Mitsubishi Heavy Industries outdoor unit and a controller to form a complete split system.
What type of refrigerant does this unit use?
This unit is designed to operate with R32 refrigerant. R32 is a more environmentally friendly option with a lower Global Warming Potential (GWP) than older refrigerants like R410A.
What are the dimensions of the FDE125VH unit?
The indoor unit measures 250 mm in height, 1620 mm in width, and 690 mm in depth. It has a net weight of 43 kg.
Who is qualified to install this unit?
Under UK law, any air conditioning system containing F-Gas refrigerants must be installed by an F-Gas certified engineer. Using a certified professional is also required to validate the manufacturer's warranty.
