Panasonic U-250PZH4E8 Big PACi NX 25.0kW Three Phase Single Split Outdoor Unit – R32, 100m Piping
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The Panasonic U-250PZH4E8 is a 25.0kW three-phase Big PACi NX outdoor unit, extending the PACi NX range to 20–25kW for larger retail, hospitality and commercial spaces.
Despite a compact single-fan design it supports piping lengths of up to 100 metres and the simultaneous connection of up to four indoor units in twin, triple or double-twin configuration. It is compatible with the PACi water heat exchanger and matches the Big PACi high static ducted indoor units, which carry nanoe X Mark 3.
Inverter compressor technology and R32 refrigerant deliver strong seasonal efficiency, with an operating range from -20°C to 52°C and simple 3-wire connection for system replacements.
Key features
- 20–25kW extension of the PACi NX range
- Compact single-fan outdoor unit
- Piping lengths up to 100m
- Connects up to 4 indoor units (twin, triple, double-twin)
- Operating range -20°C to 52°C
- PACi water heat exchanger compatible
- 3-wire connection; low-GWP R32 refrigerant
Specifications
- Model: U-250PZH4E8
- Nominal capacity: 25.0kW
- Power supply: Three phase
- Maximum piping length: 100m
- Matching indoor unit: S-250PE4E
- Operating range: -20°C to 52°C
- Refrigerant: R32
Good to know
This is a split-system component that contains or connects to R32 refrigerant, so it must be installed and commissioned by an F-Gas registered engineer. It is supplied as a single unit – pair it with a compatible Panasonic outdoor/indoor unit to make a complete system.
Genuine Panasonic product. All prices shown include VAT.
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Specifications
Specifications
Compact and lightweight design
With a low weight of just 21 kg, this ventilation unit can be installed quickly and safely by a single installer. Its space-saving footprint makes the DucoBox Energy Comfort perfectly suited for small plant rooms and confined technical areas.
Software-controlled left/right configuration
The unit is designed for maximum installation flexibility. Left- or right-hand airflow orientation is adjusted entirely via software, eliminating the need for mechanical modifications. This is made possible by an innovative patented double bypass system.
Automatic calibration
Using constant pressure calibration technology, the AUTO calibration function reduces commissioning time by up to 50%. In real-world installations, this can translate into lower labour costs and faster system setup.
High energy efficiency
Advanced dynamic air filtration ensures consistently high heat recovery efficiency. When combined with optional intelligent demand control based on CO₂ and humidity sensors, the system delivers excellent indoor air quality while minimising energy consumption.
Smart copy function for fast commissioning
An integrated software-level copy feature allows installers to duplicate settings and parameters from one unit to another. This is especially valuable for multi-unit or repeated housing projects, ensuring consistent performance and significantly reducing setup time.
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