iSPA 23N
23kW R32 Inverter Pool Temperature Control System
The Karnot iSPA 23N delivers precise pool temperature control — both heating and cooling — with ultra-low GWP R32 refrigerant and DC inverter technology. Featuring a corrosion-proof titanium-in-PVC heat exchanger, Panasonic twin rotary compressor, and built-in Wi-Fi control, it provides year-round comfort for larger swimming pools from 50 to 100 cubic metres.
Key Features at a Glance
R32 Inverter
Ultra-low GWP R32 refrigerant with DC inverter technology for maximum efficiency.
Titanium Heat Exchanger
Corrosion-proof titanium-in-PVC for pool and saltwater durability.
Panasonic Compressor
Twin rotary Panasonic compressor for quiet, reliable operation.
Wi-Fi Smart Control
Built-in Wi-Fi controller for remote monitoring and scheduling.
Wide Operating Range
Operates from -15°C to 45°C ambient for year-round pool temperature control — heating in winter, cooling in summer.
Quiet Operation
DC inverter fan with low noise for residential installations.
Ideal Applications
The iSPA 23N is engineered for precise pool temperature control — keeping your pool comfortable whether it's too cold or too hot — across a wide range of aquatic installations.
Residential Swimming Pools
Maintain the perfect swimming temperature year-round — heat when it's cold, cool when tropical sun overheats your pool.
Commercial Pools & Resorts
Precise temperature management for hotel, resort, and public pools — guest comfort in any climate.
Pool & Spa Combinations
Dual heating and cooling for pool and adjacent spa or jacuzzi.
Swim Schools & Aquatics
Precise temperature control for training and therapy pools.
Recommended Pool Size
Advised Pool Volume
Optimal pool volume range for efficient heating and cooling performance
Heating Performance
| Nominal Heating Capacity | 23 kW |
| COP (Condition 1) 1 | 7.32 |
| Heating Range (Condition 1) 1 | 7.13 – 23 kW |
| Power Input Range (Condition 1) 1 | 487 – 3,142 W |
| COP Range (Condition 1) 1 | 7.32 – 14.64 |
| Heating Capacity (Condition 2) 2 | 16.6 kW |
| COP (Condition 2) 2 | 5.09 |
Cooling Performance
| Max Cooling Capacity (Condition 3) 3 | 12.7 kW |
| EER (Condition 3) 3 | 3.31 |
| Cooling Range (Condition 3) 3 | 5.82 – 12.65 kW |
Technical Specifications
| Power Supply | 220–240V / 1Ph / 50Hz |
| Refrigerant | R32 |
| Compressor | Panasonic Twin Rotary |
| Rated Current / Max Current | 15.0 A / 21.80 A |
| Max Power Input | 4.46 kW |
| Fan Airflow / Fan Power | 5,000 m³/h / 200 W |
| Heat Exchanger Type | Titanium Tube in PVC |
| Water Pressure Drop | 15 kPa |
| Piping Connection | φ50 mm |
| Water Flow (Min / Rated / Max) | 1.37 / 2.20 / 2.75 L/s |
| Noise Level | 55 dB(A) |
Dimensions & Weight
| Dimensions (L×W×H) | 1090 × 510 × 1000 mm |
| Net Weight / Gross Weight | 105 kg / 110 kg |
| Recommended Pool Volume | 50 – 100 m³ |
Pricing
| Price | Contact for Quotation |
1 Air 27°C / Water 28°C / Humidity 80%
2 Air 15°C / Water 26°C / Humidity 70%
3 Cooling: Air 35°C / Water 21°C / Humidity 84%
Interested in the iSPA 23N?
Contact our team to discuss the right pool temperature control system for your installation
Frequently Asked Questions
Is the iSPA 23N suitable for commercial swimming pools?
Yes. The iSPA 23N is recommended for pools between 50 and 100 cubic metres, making it ideal for commercial pools, resorts, hotels, and swim schools. It delivers 23kW nominal heating with a COP up to 14.64.
What type of heat exchanger does the iSPA 23N use?
The iSPA 23N uses a titanium tube-in-PVC heat exchanger, which provides excellent corrosion resistance for both chlorinated and saltwater pool systems, ensuring long service life.
Can I monitor the iSPA 23N remotely?
Yes. The iSPA 23N features built-in Wi-Fi connectivity for remote monitoring, temperature scheduling, and control via smartphone or tablet from anywhere.