New for 2026. The redesigned Etherea. Perfect outside, perfect inside with an astonishingly slim design, NANOE Air Purifying System and Built-In Wifi Control
A breakthrough design that combines perfectly with the most modern environments
We have selected the best materials and processes for a refined design
And now they’re available in graphite grey, matt silver and matt white (Note: featured image is GRAPHITE GREY)
Product video
Product video 2
| Model Reference | Colours | Nom. Cool (kW) | Nom. Heat (kW) | Max Pipe (m) | EuP Lot 10 Energy Rating | Fuse (Amps) | Pipe Size Gas | Pipe Size Liquid | Power Supply | WiFi Control |
||
| Indoor Unit | Outdoor Unit | SCOP | SEER | |||||||||
| CS-(X)Z20CKEW(-H) | CU-Z20CKE | White, Graphite, Silver | 2.05 | 2.80 | 15 | 4.80 | 8.70 | 16 | 3/8 | 1/4 | Single | Included |
| CS-(X)Z25CKEW(-H) | CU-Z25CKE | White, Graphite, Silver | 2.50 | 3.40 | 15 | 5.20 | 9.50 | 16 | 3/8 | 1/4 | Single | Included |
| CS-(X)Z35CKEW(-H) | CU-Z35CKE | White, Graphite, Silver | 3.50 | 4.00 | 15 | 5.20 | 9.50 | 16 | 3/8 | 1/4 | Single | Included |
| CS-Z42CKEW(-H) | CU-Z42CKE | White, Graphite | 4.20 | 5.30 | 15 | 4.30 | 7.10 | 16 | 1/2 | 1/4 | Single | Included |
| CS-(X)C50XKEW | CU-Z50CKE | White. Silver | 5.00 | 5.80 | 30 | 4.80 | 8.50 | 16 | 1/2 | 1/4 | Single | Included |
| CS-Z71CKEW | CU-Z71CKE | White | 7.10 | 8.20 | 30 | 4.20 | 6.50 | 20 | 5/8 | 1/4 | Single | Included |
Includes Infra-Red Controller as standard.
Graphite Grey models available up to size 4.2kW only
Features and Benefits
Power and Wiring Information
All wiring on Panasonic RAC products is 3C+E Interconnecting. Power supply to Outdoor Unit unless specified.
Note that Power Supply can be fed to either Indoor or Outdoor unit.
Advanced Technical Data
| Indoor Unit Technical Data | Model Number | |||||
| CS-(X)Z20CKEW(-H) | CS-(X)Z25CKEW(-H) | CS-(X)Z35CKEW(-H) | CS-(X)Z42CKEW(-H) | CS-(X)Z50CKEW(-H) | CS-(X)Z71CKEW | |
| Cooling (kW) - Nominal | 2,05 (0,75 - 2,65) | 2,50 (0,85 - 3,50) | 3,50 (0,85 - 4,20) | 4,20 (0,85 - 5,00) | 5,00 (0,98 - 6,00) | 7,10 (0,98 - 8,50) |
| SEER | 8.70 | 9.50 | 9.50 | 7.10 | 8.50 | 6.50 |
| Heating (kW) - Nominal | 2,80 (0,75 - 4,00) | 3,40 (0,80 - 4,80) | 4,00 (0,80 - 5,50) | 5,30 (0,80 - 6,80) | 5,80 (0,98 - 8,00) | 8,20 (0,98 - 10,20) |
| SCOP | 4.80 | 5.20 | 5.20 | 4.30 | 4.80 | 4.20 |
| Sound Pressure - Cooling (dBA) | 35 / 24 / 19 | 39 / 25 / 19 | 42 / 28 / 19 | 43 / 31 / 25 | 44 / 37 / 30 | 47 / 38 / 30 |
| Sound Pressure - Heating (dBA) | 36 / 25 / 19 | 39 / 27 / 19 | 43 / 33 / 19 | 43 / 35 / 29 | 44 / 37 / 30 | 47 / 38 / 30 |
| Height (mm) | 295 | |||||
| Width (mm) | 870 | 1040 | ||||
| Depth (mm) | 229 | 244 | ||||
| Weight (kG) | 10 | 10 | 11 | 10 | 12 | 13 |
| Max Air Flow - Cooling (m³/min) | 10.40 | 12.40 | 12.70 | 14.50 | 17.40 | 19.00 |
| Max Air Flow - Heating (m³/min) | 11.90 | 13.00 | 14.40 | 15.40 | 19.10 | 19.90 |
| Outdoor Unit Technical Data | Model Number | |||||
| CU-Z20CKE | CU-Z25CKE | CU-ZC5XKE | CU-Z42CKE | CU-Z50CKE | CU-Z71CKE | |
| Height (mm) | 542 | 542 | 542 | 542 | 695 | 695 |
| Width (mm) | 780 | 780 | 780 | 780 | 875 | 875 |
| Depth (mm) | 289 | 289 | 289 | 289 | 320 | 320 |
| Weight (kG) | 27 | 27 | 31 | 31 | 42 | 45 |
| Sound Pressure - Cooling (dBA) | 45 | 46 | 48 | 49 | 47 | 52 |
| Sound Pressure - Heating (dBA) | 46 | 47 | 50 | 51 | 47 | 54 |
| Airflow Cool / Heat (m³/min) | 10.40 / 11.90 | 12.40 / 13.00 | 12.70 / 14.40 | 14.50 / 15.40 | 17.40 / 19.10 | 19.00 / 19.90 |
| Liquid (mm(inches)) | 6.35 (1/4) | 6.35 (1/4) | 6.35 (1/4) | 6.35 (1/4) | 6.35 (1/4) | 6.35 (1/4) |
| Gas (mm(inches)) | 9.52 (3/8) | 9.52 (3/8) | 9.52 (3/8) | 12.7 (1/2) | 12.7 (1/2) | 15.88 (5/8) |
| Max Pipe Run | 15 | 15 | 15 | 15 | 30 | 30 |
| Max Pipe Lift | 15 | 15 | 15 | 15 | 15 | 20 |
| Pre-charged to (m) | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 10.0 |
| Standing Charge (kG) | 0.70 | 0.70 | 0.81 | 0.83 | 1.13 | 1.35 |
| Additional g/m | 10 | 10 | 10 | 10 | 15 | 25 |
| Refrigerant | R32 | |||||
| Phase | Single | |||||
| Power Supply to | Outdoor | |||||
| Fuse Rating (A) | 16 | 16 | 16 | 16 | 16 | 20 |
| Interconnecting | 3C + E | |||||
| Min/Max System Power Input - kW | 0.16 / 0.94 | 0.17 / 1.18 | 0.20 / 1.46 | 0.24 / 1.86 | 0.25 / 2.39 | 0.42 / 3.08 |