Supplier
Daikin
Daikin EWAD-TZ Inverter Screw Chiller
Inverter-driven air-cooled screw chiller for GCC terminals.
EWAD-TZ B is Daikin's flagship air-cooled inverter screw chiller using R-134a (with HFO R-513A/R-1234ze transition option). Available in three efficiency classes (Premium, Silver, Standard) the chiller reaches an IPLV of 8.6. High-ambient variants operate up to 52°C condenser inlet, matching Gulf design-day demand.
Daikin EWAD-TZ Inverter Screw Chiller
hvac · climate · systems
AVS·CAT
Product at a glance
- Category
- hvac climate systems
- Launched
- 2020
- Price tier
- enterprise
- GCC sites
- 4
- Status
- ● Current model
Technical specifications
Key specs
| Cooling capacity | 600 – 1,800 kW (170 – 510 TR) |
| Refrigerant | R-134a (R-513A optional) |
| Ambient operating range | −10 to +52 °C (high-ambient) |
| IPLV / ESEER | Up to 8.6 |
| Compressor | Single-screw, inverter VSD |
| Fan drive | EC inverter |
| Sound reduction | Optional acoustic jackets, −12 dB(A) |
Compatibility
Works with
- Parallels with EWWD-VZ centrifugal chillers on shared header
- BACnet, Modbus RTU/TCP via Daikin iPU controller
- R-1234ze replacement path without cabinet change
Certifications
Approvals
AHRI 550/590
Eurovent Certified
ErP Tier 2
Best for
Typical use cases
Use case 1
Remote apron chiller for satellite pier AHUs.
Use case 2
Back-up for district-cooled terminal in peak-demand days.
Installed in GCC
Proven at these airports
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