This Heatmiser UH4 Wiring Centre connects internal heating pipework by efficiently centralizing the management of your entire underfloor system. Specifically, it provides a highly durable and precise transfer of signals from hardwired thermostats to operate up to 4 heating zones and manifold actuators. Furthermore, thanks to its standardized connection layout, you significantly speed up installation by replacing messy junction boxes with a single, secure panel mounted directly on the wall or a DIN rail.

Therefore, this Heatmiser UH4 Wiring Centre works perfectly for modern water-based underfloor heating (UFH) networks in smaller homes, apartments, or extensions. Additionally, it easily handles demanding applications, seamlessly combining separate controls for your domestic hot water cylinder, system boiler, and circulation pump from one compact location.

The unit features a robust construction with clear neon indications that instantly display the operational status of each zone. Moreover, this highly efficient module is powered by 230V and works perfectly with dedicated hardwired thermostats from the same series (e.g., neoStat). As a result, this reliable build makes it fully dependable for long-term installations, guaranteeing safe operation under a maximum total load of 5A with IP20 protection.

Key Features & Benefits:

• 4-Zone Central Management: The system incorporates dedicated inputs for 4 independent heating zones and a hot water valve output. Consequently, you achieve precise room-by-room temperature management, completely eliminating cable clutter on site.

• Zone 4 Flexibility: The design allows the fourth zone to be separated using a physical “Yes/No” slide switch. Ultimately, this allows you to create a highly customizable system where this specific zone controls traditional radiators instead of underfloor heating, entirely without triggering the manifold pump.

• Full Boiler & Pump Control: The control centre smoothly transmits a Volt-Free enable signal to the boiler and a 230V supply to the manifold pump whenever any thermostat calls for heat. Importantly, this significantly increases automation and ensures fully safe hydraulic operation.

• Clear LED Diagnostics: The smart design features neon indicator lights for every connected circuit and relay. For example, this allows you to quickly diagnose the performance of actuators and connections directly on the job.

• Safe & Simple Installation: The module is supplied with the ability to be conveniently screwed to the wall or installed on a standard DIN rail using the included back clips. Besides that, the internal circuits and 230V outputs are effectively protected by a built-in, replaceable 5A fuse.

Technical Specifications:

• Brand: Heatmiser

• Model: UH4

• Product Type: Hardwired 4-Zone Wiring Centre

• Heating Zones: 4

• Hot Water Management: 1 dedicated zone

• Power Supply & Actuator Outputs: 230V AC

• Boiler Output: Volt-Free Relay

• Maximum Load: 5A (Total) / 3A (Relay)

• Mounting: Wall mounted or DIN Rail

• Dimensions (L x H x D): 384mm x 148mm x 60mm

• Protection Class: IP20