About the SRC50ZSX-W3
The Mitsubishi Heavy Industries SRC50ZSX-W3 is a high-performance outdoor unit from the Diamond series, designed to be the core component of a versatile split air conditioning system. Delivering 5.0 kW of cooling and 5.4 kW of heating power, it is an ideal solution for climate control in larger residential rooms, open-plan living areas, or small commercial spaces like offices and retail shops across the UK.
Engineered for exceptional efficiency, this unit features advanced inverter technology that intelligently adjusts power consumption to match the exact demand, significantly reducing energy usage and running costs. This is reflected in its outstanding seasonal efficiency ratings (SEER 8.3 / SCOP 4.7) and A++ energy class for both cooling and heating. The use of R32 refrigerant further enhances its green credentials, offering a much lower environmental impact compared to older refrigerants.
Durability and performance in all conditions are hallmarks of the SRC50ZSX-W3. It boasts a remarkably wide operating range, providing effective cooling in ambient temperatures from -15°C up to 46°C, and reliable heating even when outside temperatures drop to a harsh -20°C. This makes it a dependable year-round solution capable of handling the variability of the British climate.
Installation is made flexible thanks to generous maximum pipe runs of up to 30 metres and a height difference of 20 metres, accommodating various building layouts. It is crucial to note that under UK regulations, this unit must be installed, commissioned, and serviced by a qualified F-Gas certified engineer. This ensures not only legal compliance but also optimal performance, safety, and the validity of the manufacturer's warranty.
Applications
- Medium to large residential living areas
- Open-plan kitchens and dining rooms
- Small commercial offices and meeting rooms
- Retail shops and boutiques
- Conservatories and garden rooms
- Home gyms or studios
Installation guidance
- Installation must be performed by an F-Gas certified engineer to comply with UK law.
- Requires a dedicated electrical circuit installed by a qualified electrician.
- Mount on a solid, level foundation or secure wall brackets to minimise vibration.
- Ensure adequate space is left around the unit for airflow and future maintenance access.
- The unit is pre-charged with R32 refrigerant for a pipe length of up to 15 metres.
- For pipe runs longer than 15m, an additional 20g of refrigerant per metre is required.
- Maximum total pipe length between indoor and outdoor units is 30 metres.
- Maximum vertical height difference between units is 20 metres.
Frequently asked questions
Is this a complete air conditioning system?
No, the SRC50ZSX-W3 is an outdoor unit only. To create a functioning system, it must be paired with a compatible Mitsubishi Heavy Industries indoor unit (such as a wall-mounted or ducted model).
How energy efficient is this unit?
This unit is highly energy efficient, boasting an A++ rating for both cooling and heating. It uses modern inverter technology and R32 refrigerant to minimise electricity consumption and running costs.
Can I install this unit myself?
No. Due to the F-Gas refrigerants used, it is a legal requirement in the UK that all split air conditioning systems are installed and commissioned by an F-Gas certified engineer. DIY installation will void the warranty and is illegal.
Can this unit provide heating during winter?
Yes, this is a heat pump model that provides efficient heating. It is designed to operate effectively in low temperatures, down to -20°C, making it a suitable primary heating source for many spaces.
