EWYK-QZ Product catalogue
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Built for buildings that demand more.
The Daikin EWYK-QZ is a modular air-to-water inverter heat pump using R-290 refrigerant, engineered to scale from a single 135 kW module up to 2000 kW across multiple arrays.
Its plug-and-play design allows modules to be added side-by-side or stacked as your project grows — making it equally at home in new installations, large-scale retrofits, and demanding industrial environments.
One system, unlimited potential.
Plug & Play modular system
Flexible scalability and modular installation up to 2000 kW.
The system grows with your project, allowing modules to be added progressively in line with the building’s development plan. Units can be installed side-by-side or stacked to minimise footprint, with up to four arrays of four modules and up to 60 possible configurations in a single system.
1 base module - up to 135 kW
2 base modules - up to 270 kW
1 array of 4 modules - up to 540 kW
4x4 array - up to 2000 kW
managed by iCM system control
Engineered for peak performance
Full Inverter Technology
VFD scroll compressors and inverter-driven EC fans adapt in real time to load variations, ensuring outstanding part-load efficiency across all seasons.
Plug & Play Installation
A single power cable supplies up to four modules. The Manifold Kit with all inter-unit piping can be pre-installed at the factory to further cut on-site time.
High-Temp Operation
Delivers heating water up to 75 °C even at outdoor temperatures as low as −20 °C — a direct boiler replacement for the most demanding applications.
Natural Refrigerant
R-290 (propane) carries a GWP of just 0.02 — future-proof compliance with F-gas regulation and a dramatically reduced carbon footprint.
Pump Module Option
A dedicated pump module with an inverter pump and 18-litre expansion tank integrates directly into the array for a fully self-contained hydronic system.
Retrofit Ready
Compact stacking and modular growth make the EWYK-QZ ideal for projects where space is limited and phased capacity expansion is required.
Wide operating range
No compromise on conditions.
Delivers reliable heating and cooling across a wide operating envelope, with water temperatures up to 75 °C, making it an ideal boiler replacement for residential, hotel and industrial applications.
| Min. | Max. | |
| Heating water | 20°C | 75°C |
| Chilled water | -15°C | 18°C |
| Outdoor ambient temperature | -20°C | 46°C |
Daikin Safety Shield
Safety built into every layer
- Two refrigerant leak detectors — covering both the compressor box and the electrical panel.
- ATEX-certified extraction fans — maintain positive pressure and clear any leakage from both enclosure.
- Acoustic & visual siren — activated immediately by leak detectors for fast emergency response.
- Independent power supply — all safety devices run on a dedicated circuit, separate from the main unit supply.
- Safety valve manifold — routes refrigerant outside the compressor box in any overpressure event.
Daikin's safety approach covers the full product lifecycle — from production and storage to transport, installation, maintenance, and disposal — ensuring partners and end users operate in a safe environment at all times.
Intelligent Chiller Manager
1. Full plant optimisation
Coordinates all modules in heating or cooling mode, guaranteeing high efficiency and reliable performance regardless of plant size or configuration.
2. Extended architecture
Manages cooling towers and manifolded pumping systems for both air-cooled and water-cooled installations from a single interface.
3. Reduced operating costs
By minimising energy consumption and mechanical stress, the iCM extends system durability and delivers measurable efficiency gains over the unit's lifetime.
Technical data - EWYK-QZ
EWYK135QZXSA2
| Parameter | Value |
Heating Capacity [H1] — 40/45°C, 7°C OAT (kW) | 135 |
COP [H1] (kW/kW) | 3.3 |
SCOP Low Temperature / Medium Temperature (kW/kW) | 4.2 / 3.2 |
Cooling Capacity [C1] — 12/7°C, 35°C OAT (kW) | 128 |
EER [C1] / SEER (kW/kW) | 2.6 / 4.8 |
Sound Power Level (dB(A)) | 79.5 |
Dimensions (L × W × H) (mm) | 2382 × 1207 × 2653 |
Refrigerant Charge (kg) | 6.6 |
Compressor Type | 2× Scroll VFD |
| Power Supply | 400V / 3ph / 50Hz |
Array capacities
1 MODULE
135 kW
Heating / 128 kW Cooling
2 MODULES
270 kW
Heating / 256 kW Cooling
3 MODULES
405 kW
Heating / 384 kW Cooling
4 MODULES
540 kW
Heating / 512 kW Cooling
Future-proof by design
R-290 is one of the most environmentally responsible refrigerants available. Combined with full inverter technology and smart grid integration, the EWYK-QZ supports sustainable building standards and complies with the latest European regulations.
Designed for sustainable buildings
BREEAM ready
LEED ready
Fully compliant with the latest F-Gas regulation
Key sustainability & performance indicators
0.02 GWP - Global Warming Potential
4.2 SCOP - High seasonal efficiency (low temperature)
75 °C - Maximum heating water temperature
−20 °C - Minimum outdoor ambient temperature in heating mode
Learn more
One system.
Unlimited potential.
Talk to a Daikin specialist to find the right configuration for your project.