NULITE Pioneer Series R32 is a 3-in-1 monobloc air-source heat pump for space heating, cooling, and domestic hot water. The refrigerant and hydronic circuits are housed in one outdoor enclosure, while inverter control modulates output to match the building load. Five models cover a heating-output range from 2.8 to 40 kW.
Functions and construction
The unit supports heating, cooling, DHW, heating plus DHW, and cooling plus DHW. The manufacturer's table lists Panasonic twin-rotary compressors, full-DC fan motors, and SWEP plate heat exchangers. Smaller models include Wilo circulation pumps and 3 kW auxiliary electric heaters; the hydronic package for larger sizes is confirmed during engineering.
Key benefits
- R32 refrigerant and inverter capacity control.
- Ambient operation from −25 to +43 °C.
- Rated water temperatures of 55 °C for DHW, 45 °C for heating, and 12 °C for cooling.
- Wi-Fi remote control and five operating modes.
- IPX4 enclosure, water-flow monitoring, antifreeze logic, high/low-pressure, discharge-temperature, and compressor-overload protection.
- ErP class up to A+++ at 35 °C and A++ at 55 °C for the sizes marked in the brochure.
Applications
- Private homes, cottages, villas, and townhouses.
- Apartments, small hotels, and resorts.
- Offices, shops, restaurants, workshops, and public buildings.
- Underfloor heating, low-temperature radiators, and fan coils.
- Systems with buffer tanks, indirect DHW cylinders, and solar-thermal assistance.
- New-build and hydronic heating retrofit projects.
System integration
The monobloc layout reduces on-site refrigerant work but requires reliable freeze protection for the outdoor water circuit. Depending on size, rated water flow is 1.7–7 m³/h, water connections are DN25 or DN40, and power is 220–240 V single-phase or 380–415 V three-phase. The design must provide adequate flow, a buffer tank where required, safety valves, condensate drainage, and unrestricted airflow through the heat exchanger.
Equipment selection
The model is selected from the building design heat loss at minimum ambient temperature, required supply-water temperature, cooling load, and daily hot-water demand—not from floor area alone. Cascade and commercial systems also require checks of available electrical capacity, redundancy, hydraulic separation, and control strategy.
Specifications are based on the supplied manufacturer brochure. Actual output, COP, and sound level depend on air and water temperatures, operating mode, flow rate, and installation quality. Final configuration is confirmed by project calculations.
