Poolex Nano On-Off 2025 heat pump for small pools
The Poolex Nano On-Off 2025 is a compact, reversible, plug-in heat pump designed to heat small pools simply and efficiently. It is a particularly practical solution for above ground pools, wooden pools, small volume in-ground pools or installations with limited space.
This new version maintains the Plug & Play concept of the Nano range, but adds Wi-Fi connectivity to control the heat pump remotely from the Poolex app. Its compact design, Quiet operation and ability to work in heating, cooling or automatic mode make it a very complete option to improve bathing comfort during the season.
There is a model with lower power consumption and lower sound level: Poolex Nano Full Inverter 2025.
Available models
| Model | Reference | Recommended volume | Heating capacity | power supply | Water flow rate | Net weight |
|---|---|---|---|---|---|---|
| Poolex Nano 3 | PC-NANO B3 | Up to 20 m³ | 3.25 kW | 220-240 V / 50 Hz | 1.40 m³/h | 25 kg |
| Poolex Nano 5 | PC-NANO B5 | Up to 30 m³ | 5.00 kW | 220-240 V / 50 Hz | 1.40 m³/h | 32 kg |
Main advantages
- Compact heat pump for small pools.
- Simple and reliable On-Off operation.
- Integrated Wi-Fi connectivity for remote control from the Poolex application.
- Heating, cooling and automatic mode.
- Automatic defrost depending on humidity and outside temperature.
- Plug & Play installation with differential protection plug.
- Compatible with common water treatments, including Salt Electrolysis.
- Twisted Tech titanium heat exchanger.
- R32 refrigerant gas.
- Compact and modern design, suitable for small spaces.
- Reduced sound level: 48 dB(A) at 1 meter and less than 30 dB(A) at 10 meters.
Performance
| Conditions | Data | Nano 3 | Nano 5 |
|---|---|---|---|
| Air 26 °C / Water 26 °C / Humidity 80%. | Capacity | 3.25 kW | 5.00 kW |
| Air 26 °C / Water 26 °C / Humidity 80%. | Power absorbed | 0.59 kW | 0.93 kW |
| Air 26 °C / Water 26 °C / Humidity 80%. | COP | 5,50 | 5,40 |
| Air 15 °C / Water 26 °C / Humidity 70%. | Capacity | 2.19 kW | 3.36 kW |
| Air 15 °C / Water 26 °C / Humidity 70%. | Power absorbed | 0.55 kW | 0.81 kW |
| Air 15 °C / Water 26 °C / Humidity 70%. | COP | 3,95 | 4,16 |
Reversible hot / cold function
The Poolex Nano 2025 allows water to be heated on cool days and also to be cooled during periods of intense heat. Its automatic mode adapts the operation of the heat pump around the selected temperature, helping to keep the water within the desired range without constant user intervention.
The cooling function is especially useful in small pools or pools with a liner, where excessive water temperature can affect bathing comfort and the liner.
Wi-Fi control from the Poolex application
The Nano 2025 features 2.4 GHz Wi-Fi connectivity, allowing you to control the heat pump from your smartphone using the Poolex app. From the app it is possible to turn the equipment on or off, adjust the temperature, change the operating mode and program time slots for use.
Technical characteristics
| Feature | Nano 3 | Nano 5 |
|---|---|---|
| Reference | PC-NANO B3 | PC-NANO B5 |
| Recommended volume | Up to 20 m³ | Up to 30 m³ |
| power supply | single-phase 220-240 V / 50 Hz | single-phase 220-240 V / 50 Hz |
| Heating temperature range | 10 °C – 40 °C | 10 °C – 40 °C |
| Operating range | -7 °C – 43 °C | -7 °C – 43 °C |
| Maximum power | 1.25 kW | 1.75 kW |
| Water flow rate | 1.40 m³/h | 1.40 m³/h |
| Hydraulic connection | 32 mm | 32 mm |
| Coolant | R32 | R32 |
| Compressor brand | GMCC | GMCC |
| Heat exchanger | Twisted Tech Titanium | Twisted Tech Titanium |
| Equipment dimensions | 400 x 440 x 390 mm | 400 x 440 x 390 mm |
| Packaging dimensions | 450 x 540 x 445 mm | 450 x 540 x 445 mm |
| Net / gross weight | 25 / 30 kg | 32 / 37 kg |
| Sound level at 1 m | 48 dB(A) | 48 dB(A) |
| Sound level at 10 m | <30 dB(A) | <30 dB(A) |
| Function | Heating / Cooling / Automatic | Heating / Cooling / Automatic |
| Connectivity | Wi-Fi 2.4 GHz | Wi-Fi 2.4 GHz |
Plug & Play Installation
The Poolex Nano On-Off 2025 is designed for easy installation. It only requires connection to the hydraulic circuit of the pool and adequate power supply. The Filtration pump must run at the same time as the heat pump to ensure water circulation through the equipment.
It is recommended to install the unit on a stable, level and well ventilated surface. At least 1.50 m should be left free in front of the heat pump and approximately 30 cm at the sides and rear to promote air circulation and facilitate maintenance.
Included Accessories
- PVC connectors Ø32-38 mm.
- Socket with differential protection.
- Multilingual installation and user manual.
- Anti-vibration skids mounted on the heat pump.
Compatibility
The Poolex Nano 2025 is compatible with above ground pools, wooden pools and small volume inground pools. It can also be used with the usual water treatments, including Salt Electrolysis, provided that the treatment system is installed downstream of the heat pump in the hydraulic circuit and the pH is kept within the recommended range.
Recommended use
To improve performance and reduce consumption, it is advisable to cover the pool when not in use. A Thermal blanket or cover reduces evaporative heat losses and allows the heat pump to run for a shorter time to maintain water temperature.
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