Rehau STAR 20 Installation Manuallines

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REHAU STAR CONTROLS

INSTALLATION GUIDELINES

www.rehau.co.uk
Building Solutions
Valid from May 2011
Automotive
Subject to technical alterations
Industry

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Summary of Contents for Rehau STAR 20

  • Page 1: Installation Guidelines

    REHAU STAR CONTROLS INSTALLATION GUIDELINES www.rehau.co.uk Building Solutions Valid from May 2011 Automotive Subject to technical alterations Industry...
  • Page 3: Table Of Contents

    4 ..REHAU STAR Technical Data ..... 10 4.1 ..STAR 20 ......10 4.2 .
  • Page 4: Explanation Of Symbols

    Maintenance Symbols and Logos Maintenance of the REHAU control system for heating is restricted to regular cleaning. System components inside the switch cabinet and Safety Information living areas are best cleaned from dust and other dirt during normal scheduled maintenance.
  • Page 5: Safety Instructions

    è impermissible. control. Details can be found in BS EN 1264. Compact mixers supplied by REHAU can be used to confi rm to this standard. When performing service and conversion work always isolate and è test to ensure circuits are fully isolated.
  • Page 6: Rehau Star Controls

    REHAU STAR CONTROLS INSTALLATION GUIDELINES Congratulations on choosing the new range of REHAU’s STAR Controls that brings the luxury of fi ngertip control of underfl oor heating systems within the reach of every homeowner. General Description Now, underfl oor heating specialists REHAU are...
  • Page 7: The Star Controls Range

    REHAU STAR CONTROLS THE STAR CONTROLS RANGE STAR 20 STAR 30 STAR 50 Wiring Centre Analogue Electronic Room Digital Room Controller Programmable Room Article No. 205578 Controller Article No. 206028 Controller Simple plug-in system which Article No. 206029 Featuring a large, easy to read Article No.
  • Page 8: For The Installer

    REHAU STAR CONTROLS FOR THE INSTALLER The CE approved REHAU STAR controls range has been specifi cally developed to work with underfl oor heating. Advanced controllers combined with a simple plug in wiring centre Night setback which can achieve energy savings of up to 30% for...
  • Page 9: For The Homeowner

    This is achieved by switching off the boiler as soon The REHAU STAR controls range is easy to fi t as the heating demand is satisfi ed so, the more and very easy to use. Whichever stylish surface...
  • Page 10: Rehau Star Technical Data

    Pulse width modulated control that gives maximum control and comfort. General The room temperature (STAR 20) controller offers key advantages over conventional mechanical products: This unique controller is easy to operate using the conventional backlit adjusting dial, when illuminated shows the room has not achieved set point.
  • Page 11: Star 30

    Pulse width modulated control that gives maximum control and comfort. General The new REHAU room Controller (STAR 30) is a state of the art electronic room temperature controller which offers key advantages over conventional mechanical products: The control device can be easily operated by means of two buttons on the front cover.
  • Page 12: Star 50

    Pulse width modulated control that gives maximum control and comfort with . General The new REHAU Programmable Room Controller (STAR 50) is a time programmer and an electronic room temperature controller which offers key advantages over conventional mechanical products with its powerful time clock that offers six on/off per day seven days and with up to six selectable profi...
  • Page 13: Star Pump Relay

    REHAU STAR TECHNICAL DATA STAR PUMP RELAY Boiler and Pump, Logic Module This is an Intelligent electronic control interface that can switch the pump and boiler dependant on the requirements of the main wiring center. This unit is used to protect the boiler and pump and to reduce cold cycling of the boiler so as to ensure there is a demand for heat prior to switching on the boiler and pump unit.
  • Page 14: Star Centre

    REHAU STAR TECHNICAL DATA STAR CENTRE Wiring Centre This is a specifi cally designed wiring centre interface that is used primarily in the control of underfl oor heating. Its inbuilt logic distributes the Night set back and time signal specifi cally to the controller, actuators and if installed the boiler/pump logic module.
  • Page 15: Overview Of Main Features

    In order to ensure that the valves remain movable and functional Electronic Pulse Width Modulating even after long periods out of operation - i.e. in summer, the REHAU The electronic Pulse Width Modulation (PWM) system used throughout controller is supplied with a switchable valve exercising operation, operates using a constant comparison of desired and actual temperature.
  • Page 16 PWM works on a setting temperature and a cycle time. The cycle time The Δ span and span is the sensitive of the control system. If the span is measured in cycles per hour (cph). PWM also uses a differential is large, the heater is turned even for higher actual temperature.
  • Page 17: General Underfl Oor Heating Guide

    One manifold set typically serves a fl oor area up to 150–240m Floor Coverings REHAU must be notifi ed of the fl oor covering type before design Optimising Loop Lengths commences. To allow for different loop lengths, heat outputs and different fl oor coverings it is necessary to balance the loops on each manifold.
  • Page 18 A layer of insulation should be laid immediately below the heating fl oors with an open void below, all air movement must be prevented pipes to prevent downward heat losses. For screeded fl oors, REHAU between the insulation and the UFH system to ensure maximum normally supplies a plastic Clip Rail for fi...
  • Page 19: Principles Of Controlling An Underfl Oor Heating System (Ufh)

    UNDERFLOOR HEATING SYSTEM (UFH) REHAU Underfl oor Heating Underfl oor Heating Considerations REHAU Underfl oor Heating is a favoured choice for industry professionals. Your plumber can install the REHAU Underfl oor heating system Practical, cost-effective and fl exible, Underfl oor heating is increasingly at either new property developments or as refurbishment and being specifi...
  • Page 20 Adjustments are made dependent upon: Working Principle - Continuous temperature readings from each room controller The compact mixer regulates the main system fl ow from the boiler directly into the manifold. It mixes the high temperature water from - The end user setings such as room temperature set point and programmed night set-back periods on the timer the main system fl...
  • Page 21 Ω"or æ" Figure 5. Compact mixer unit fitted to the left side of the manifold with FH flow header on top, FH return header on bottom. Local Balancing Zone Temperatures This cleverly prioritises demand from each zone dependent upon By measuring and linking a room sensor to our system, we can control the difference between the current and required temperature.
  • Page 22: Rehau Star Controls Installation

    REHAU STAR CONTROLS INSTALLATION STAR CENTRE...
  • Page 23: Electrical Installation

    Now fi rmly mount the base plate on the wall or the fl ush-mounted responsibility for damage caused by non-observance of these socket with the screws provided. instructions. REHAU STAR 20 & 30 Jumpers Switch Feature Installation of controllers Valve protection feature...
  • Page 24: Star Centre And Star Pump Relay Connection And Mounting

    Place the pump/ boiler cable After you have fi nished Please put the REHAU STAR Bend the cables 180 in the chassis the cable-work, place the fi bre Centre Plus inside the chassis...
  • Page 25 Pump and boiler jumper connections Attach cables from actuators in the same way. You can switch up to 4 actuators with each controller. Ensure all cables are connected properly. Jumper Function Default Setting J1-Boiler and pump protection Jumper is ON (3 ON -OFF minute) position ON -Enables boiler and pump protection...
  • Page 26: Installer/User Setup Star 50

    REHAU STAR CONTROLS INSTALLATION INSTALLER/USER SETUP STAR 50 Navigation Set up data STAR 50 Set up data for PROGRAMMABLE Electronic Room Temperature controller for underfl oor heating. 1 – Access the Main Menu by 2 – Navigate through the menu 3 –...
  • Page 27: Basic Settings

    Program - Menu To enter the program menu, you have to press – fi rst before the following procedures. If you modify a temperature zone, the temperature settings within the profi les will change as well. The zones are factory defaulted with these temperatures.
  • Page 28: Typical Specifi Cation Phrases And Inclusions

    Valves and Actuators REHAU recommend the use of compact mixers in domestic application as this can satisfy the requirements of BS1264 and allows preset control over the fl ow into the fl oor including high limit control This is considered as fi...
  • Page 29: Appendix

    APPENDIX SENSOR CHARACTERISTICS NTC 10k resistance table -20°C = 96358Ω 11°C = 19037Ω 16°C = 15056Ω 21°C = 11990Ω 26°C = 9612Ω 35°C = 6535Ω 60°C = 2490Ω -10°C = 55046Ω 12°C = 18202Ω 17°C = 14414Ω 22°C = 11493Ω 27°C = 9224Ω...
  • Page 30: Notes

    REHAU STAR CONTROLS NOTES...
  • Page 32 Working conditions and use under conditions for which the product was not intended and over which we have no infl uence exclude any claim resulting from our information. We recommend that a suitable check is made as to whether the REHAU product is suitable for the envisaged purpose. Application, use and processing of the products is carried out beyond the scope of our control and are therefore carried out exclusively at your own responsibility.

This manual is also suitable for:

Star 30Star 50

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