Mitsubishi Heavy Industries SRK50ZSX-WF / SRC50ZSX-W2 Diamond Plus 5.0kW Inverter Split System
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Engineered for exceptional thermal performance in large spaces up to 55m², the Mitsubishi Heavy Industries SRK50ZSX-WF Diamond Plus provides 5.0kW (18,000 BTU) cooling and 6.0kW (20,470 BTU) heating. Boasting a flawless A+++ energy classification, it uses intelligent motion presence sensors to modulate capacity dynamically when rooms are vacated. Built-in Smart M-Air Wi-Fi control allows you to optimise indoor climates from anywhere using your smartphone, tablet, or smart voice assistant. The sophisticated dual-stage air filtration system neutralises airborne contaminants, pollen, and bacteria quickly and efficiently. Featuring robust heavy-industrial build quality and whisper-quiet sound profile, it represents the gold standard for high-end residential homes and boutique workspaces. Requires F-Gas installation.
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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
Technical documents & videos
More from Mitsubishi Heavy Industries →Full Specifications
Physical dimensions
Exact dimensions for this model are being confirmed with Mitsubishi Heavy Industries — ask us and we will send the cut sheet with mounting and clearance figures.
Description
Engineered for exceptional thermal performance in large spaces up to 55m², the Mitsubishi Heavy Industries SRK50ZSX-WF Diamond Plus provides 5.0kW (18,000 BTU) cooling and 6.0kW (20,470 BTU) heating. Boasting a flawless A+++ energy classification, it uses intelligent motion presence sensors to modulate capacity dynamically when rooms are vacated. Built-in Smart M-Air Wi-Fi control allows you to optimise indoor climates from anywhere using your smartphone, tablet, or smart voice assistant. The sophisticated dual-stage air filtration system neutralises airborne contaminants, pollen, and bacteria quickly and efficiently. Featuring robust heavy-industrial build quality and whisper-quiet sound profile, it represents the gold standard for high-end residential homes and boutique workspaces. Requires F-Gas installation.
Compare similar units
Side-by-side specs for other split system ac in a similar BTU range.
Common questions about the Mitsubishi Heavy Industries SRK50ZSX-WF / SRC50ZSX-W2 Diamond Plus 5.0kW Inverter Split System
How many BTU is the Mitsubishi Heavy Industries SRK50ZSX-WF / SRC50ZSX-W2 Diamond Plus 5.0kW Inverter Split System?
The Mitsubishi Heavy Industries SRK50ZSX-WF / SRC50ZSX-W2 Diamond Plus 5.0kW Inverter Split System has a cooling capacity of 18,000 BTU, suitable for Up to 55m².
What room size is the Mitsubishi Heavy Industries SRK50ZSX-WF / SRC50ZSX-W2 Diamond Plus 5.0kW Inverter Split System suitable for?
The Mitsubishi Heavy Industries SRK50ZSX-WF / SRC50ZSX-W2 Diamond Plus 5.0kW Inverter Split System is recommended for rooms Up to 55m².
Can I install the Mitsubishi Heavy Industries SRK50ZSX-WF / SRC50ZSX-W2 Diamond Plus 5.0kW Inverter Split System myself?
No — this unit requires professional installation by a qualified F-gas engineer. Use our Find an Installer service to get matched with a local HVAC professional.
Is the Mitsubishi Heavy Industries SRK50ZSX-WF / SRC50ZSX-W2 Diamond Plus 5.0kW Inverter Split System smart-home compatible?
Yes — the Mitsubishi Heavy Industries SRK50ZSX-WF / SRC50ZSX-W2 Diamond Plus 5.0kW Inverter Split System supports Amazon Alexa, Google Home for app and voice control.
How long does delivery of the Mitsubishi Heavy Industries SRK50ZSX-WF / SRC50ZSX-W2 Diamond Plus 5.0kW Inverter Split System take?
This unit is dispatched in 2-3 working days. Delivery is then 1–2 working days to most UK mainland addresses, and 3–6 working days into the EU.
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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
136 kWh/yr
EER 14
Standard model
237 kWh/yr
EER 8
Est. saving
£27.47
102 kWh/yr less
Estimate based on the unit's energy-rating efficiency factor and cooling capacity (18,000 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 6 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.
Electric heater / season
£1215
This AC / season
£405
You save / season
£810
~67% less electricity
| Heating method | Electricity / season | Cost / season | Efficiency | Summer cooling |
|---|---|---|---|---|
| This heat-pump AC | 1500 kWh | £405 | Up to 300% | |
| Plug-in electric heater | 4500 kWh | £1215 | 100% | |
| Electric storage heater | 4500 kWh | £1215 | 100% |
Heat output estimated from this unit's 20,470 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 →
Share your savings
This heat-pump AC costs only £405/season to heat a room vs £1215 for an electric heater - that's £810 saved. https://stockool.store/products/mhi-srk50zsx-wf-diamond-plus-5-0kw-split
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