Technical Features

• 8 Zone Underfloor Manifold Controller
• Dedicated Pump / Boiler relay switch
• up to 8 x Remote 10k3 Probe Inputs
• up to 8 x Digital Volt Free inputs
• Modbus Communications Interface

UMC Modes

Slave

When the UMC is running in slave mode all the IO and relays are available as control points to a higher-level control system. This system could be another UMC or BMS or AV control system.

Mini Master

The mini Master mode is ideal for MDU installations or installations where fast self-configuration deployment is desirable. When a single UMC is on the modbus, it will scan for Zentiums and automatically program its own relay outputs and pump demand, based on the services configured in the Zentium and if the zones are wet or electric.

Max Master

The Max master mode acts as a full master for larger stand alone systems. When the polar bear design HVAC system has been configured a single UMC is then set to Max master mode and it will manage communications to the Zentiums and other UMCs on the Modbus network.

Pump Outputs

The pump output is a relay that can either be triggered directly or automatically controlled depending on how the services are configured. A delay can also be attached to the pumps output demand allowing an actuator time to fully open before triggering the demand on the pump / boiler. For example if a Zentium has the main zone configured as wet under floor and the 2nd zone (en-suite) configured to electric. The pump demand will only be activated when zone 1 has a heating demand.

Remote 10k3 Sensors

These inputs are only avalable on the 001 & 003 models. The temperatures recorded by these are then presented on in the Modbus register tables. Each temperatrue input also has individual calibration capabilities.

Digital Inputs

The digital inputs are presented on the Modbus register tables. Some special features are pre-programmed into the unit depending on the UMC mode is running. e.g. in Mini Master mode for MDUs one digital input can automatically switch the Zentiums into different Operational Modes e.g. Auto, Heating Only, Cooling Only, Away.

Speed Boost

When used with the Zentium Pro thermostat the UMCs have the ability to intelagently trigger demand setting by monitoring the data on the network. This improves responses times significantly as the UMC will see a request and response to data on the network and react instantly. This means a higher level control systems don't have to interpret priority communications which can cause unnecessary delays.

Fail Safe

When the UMC is sniffing the network it will automatically recognises when a Zentium has gone offline. In this scenario the UMC will automatically fail SAFE and turn OFF any demands that may have previously been generated by that zentium.