Panasonic CZ-RTC5B Hard Wired Controller with DataNavi & Energy Display for PACi
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The Panasonic CZ-RTC5B is a high-specification hard-wired remote controller for PACi and PACi NX indoor units, with a clear 3.5-inch LCD that shows temperature, mode, fan speed and – on PACi units with an "A" suffix – live energy consumption.
Panasonic Light ID technology (DataNavi) lets you hold a smartphone to the controller's display to pull system information and jump straight to manuals via the Comfort Cloud server. A weekly timer, six languages, group control of up to eight indoor units and optional EcoNavi occupancy sensing round out the feature set. For most new installations the CZ-RTC6/CZ-RTC6BL is the current replacement.
Key features
- Clear 3.5-inch LCD with energy consumption display (PACi "A" models)
- Weekly programme timer
- Light ID / DataNavi smartphone access to system data
- Controls up to 8 indoor units; group wiring of 2 PACi systems
- EcoNavi occupancy sensing (sensor sold separately)
- Available in 6 languages
Specifications
- Model: CZ-RTC5B
- Display: 3.5-inch LCD
- Compatible with: PACi NX Elite and Standard indoor units
- Indoor units controlled: Up to 8
Good to know
Check controller compatibility with your indoor unit model before ordering – contact Pure Clima if you are unsure.
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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Pure Clima is an authorized UK distributor of Ventmann frameless diffusers and gypsum-based products.

