Model: UH8-RF V2
UH8-RF V2 – Installation Manual Description The UH8-RF V2 is an 8 Zone central wiring centre for use with Heatmiser RF thermostats. The UH8-RF V2 can be used to control any actuator or valve, which requires a 230v AC signal to open. For mid position valves and those requiring a closing signal, a changeover relay is required. The UH8-RF V2 also offers the ability to operate a boiler or other heat source through a volt free output with changeover contacts, giving you both a heat on signal and a heat off signal.
Installation The UH8-RF V2 can be mounted directly to a wall using four screws or alternatively, the unit can be DIN rail mounted. When DIN Rail mounting, you first need to insert the two clips provided on the back of the UH8-RF V2, as shown in the image; • On the back of the UH8-RF V2, position the clip in the middle and slide down. • Points A and B locate in the corresponding holes and lock into place. • Locate the UH8-RF V2 onto the DIN rail from the top.
UH8-RF V2 Wiring The UH8-RF V2 should be fitted as close as possible to the equipment it is controlling, but never within a metal enclosure, if this cannot be avoided an extension antenna (EA1) must be fitted and placed outside the metal enclosure.
Dew Point Sensor (Cooling Mode Only) Zones 1 to 8 Buttons and indicators Dew Point sensing help to reduce the risk of condensation whilst cooling is in demand. When activated, the sensor sends a signal back to the UH8-RF V2, and will shutdown cooling to the manifold. During this time, the dew point indicator light will show. Each Zone has an indicator light and button associated with it. Connections (24 Volt DC) + = Positive - = Negative SL = Input Light functions: 1. 2.
Wiring Diagram UH8-RF Direct Pump Connection Select Zone Switch Position to match your system 1. Radiator with Zone Valve end switch 2. Radiator with Actuators - enables heat output 3.
Front Panel Connection ON Recommended cable for Dew Point Sensor: Multi-core Screened.
Wiring Diagram UH8-RF with UFH & Radiator Valves Select Zone Switch Position to match your system 1. Radiator with Zone Valve end switch 2. Radiator with Actuators - enables heat output 3.
Front Panel Connection ON Recommended cable for Dew Point Sensor: Multi-core Screened.
System Setup DIP Switches Zone Type Toggle Switches There is a 3 position toggle switch above each zone. This switch allows 3 different switched outputs when the thermostat demands heat. Position 3 - Zone output with heat demand and manifold pump. When a thermostat is in demand, the UH8-RF will activate the zone output to the actuators, the heat demand to the boiler and the manifold pump. Enable Creepage 3. Heat Enable Delay 1 minute. 4. Heat Enable Delay 2 minutes.
PLEASE COMPLETE DURING INSTALLATION System Configuration UH8-RF V2 Title: In Use Zone Type Under-Floor Zone Title Radiator Zone 1 Zone 2 Zone 3 Zone 4 Zone 5 Zone 6 Zone 7 Zone 8 Hot Water 10 Model: WiringUH8-RF Centre V2 11
Want More Information? Call our support team on: +44 (0)1254 669090 Or view technical specifications directly on our website: www.heatmiser.com PDF Twitter: @heatmiseruk FAQ VIDEO Heatmiser UK Ltd Units 1-5 Hurstwood Court, Mercer Way Shadsworth Business Park, Blackburn, Lancashire, BB1 2QU, United Kingdom. Facebook: facebook.com/thermostats Products Commonly used with the UH8-RF V2 wiring centre. Slimline-RF neoAir RF-Switch/RF-Switch V2 neoPlug (Signal Booster) TA 230 Actuator Rev 1.
