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The DATA Extra HIU
Installation Instructions DE2
The DATA Extra HIU, Installation Instructions DE2 12/08/2021

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Summary of Contents for THERMAL INTEGRATION DATA Extra HIU

  • Page 1 The DATA Extra HIU Installation Instructions DE2 The DATA Extra HIU, Installation Instructions DE2 12/08/2021...
  • Page 2: Table Of Contents

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 The DATA Extra HIU, Installation Instructions DE2 Wiki Binder, 12th August 2021 Explanation of symbols and abbreviations ........3 Introduction ............4 Key Components ............5 Available Options ............6 Dimensions ............
  • Page 3: Explanation Of Symbols And Abbreviations

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Explanation of symbols and abbreviations Symbols Abbreviations Page 3...
  • Page 4: Introduction

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Introduction The DATA Extra HIU enables us to take the functions of our flagship twin plate DATA HIU and increase the heating output to cater for commercial or industrial applications. The basis of this HIU is our...
  • Page 5: Key Components

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Key Components Parts List Item No. Description Pt. No. SLIM HIU 70TILSLIM Node-iHIU Control 70DATA-Extra-Control CH Plate Heat Exchanger 7028768 CH Control Valve 70610 CH Control Valve Actuator 70NOVO003Z8500 Heat Meter 70HM403-2.5-G1B-130...
  • Page 6: Available Options

    External DHW recirculation unit, to provide constant circulation of DHW throughout the property in order to allow quicker response times at the tap where extended pipe runs are unavoidable. Heat Meter. It is possible to fit most brands of heat meter into the HIU, contact Thermal Integration for further information. Page 6...
  • Page 7: Dimensions

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Dimensions Page 7...
  • Page 8: Technical Data

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Technical Data Primary Nominal primary supply temperature 85°C Maximum primary supply temperature 90°C * Minimum primary supply temperature 55°C ** Maximum primary differential pressure 250kPa Minimum primary differential pressure 50kPa ***...
  • Page 9: Description

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Description The HIU is for use in properties connected to a district heating system using a centralised boiler and is suitable for both central heating and domestic hot water. Each hydraulic circuit to which the HIU is connected, must meet minimum water quality standards as stated in document "Requirements on water quality"...
  • Page 10: Operation

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Operation The HIU is equipped with two heat exchangers, the left hand heat exchanger transfers the heat from the district heating system to the DHW circuit and the right hand heat exchanger transfers the heat from the district heating system to the CH circuit. These heat exchangers ensure hydraulic separation between the property and the district heating network.
  • Page 11: Adjusting Settings

    End users cannot adjust settings, unless an iHIU Controller is used. PC Software The software is made freely available, along with training, to registered commissioning engineers. Please contact Thermal Integration for further information. The software allows one to adjust the following settings:...
  • Page 12: Factory Settings

    The DHW settings are factory set, and these can only be changed by connecting a laptop directly to the SLIM HIU communication cable and using the HIU Monitor Application Software available from Thermal Integration. If the DATA Extra HIU is connected to a BMS, it is possible to alter the settings through the BMS ModBus interface. The factory settings are as follows:-...
  • Page 13: General Plumbing Requiremenrts

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 General Plumbing Requiremenrts NEW COMPLETE SYSTEM INSTALLATIONS: When carrying out a completely new heating system installation in a new build property or a first time installation in an existing property, then the heating system must conform to current building regulations Part L1a.
  • Page 14: General Wiring Requirements

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 General Wiring Requirements These instructions apply in the UK and Ireland only and must be followed except for any statutory obligations. Component specific electrical information may also be supplied in support of these instructions, however if there is any doubt please contact...
  • Page 15: Hiu Schematic

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 HIU Schematic Page 15...
  • Page 16: Installation Schematic

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Installation Schematic NOTE: The below schematic shows the HIU fitted with a CH pump, however this is an optional extra. Page 16...
  • Page 17: Wiring Schematic

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Wiring Schematic Page 17...
  • Page 18: Important Installation Requirements

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Important Installation Requirements Components in the HIU, pipes and radiators may reach high temperatures. The HIU is designed for heat distribution networks with water temperatures up to 95°C. The pipes and parts in the HIU as well as pipes and radiators in the heating system can also reach this temperature.
  • Page 19 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 The DHW recirculation unit is an available option for fitting external to the HIU. The recirculation system must not contain any isolation valves. Applying valves to the system can cause the pump to overheat due to insufficient flow.
  • Page 20: Service And Inspection

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Service and Inspection Components in the HIU, pipes and radiators may reach high temperatures. The HIU is designed for heat distribution networks with water temperatures up to 95°C. The pipes and parts in the HIU as well as pipes and radiators in the heating system can also reach this temperature.
  • Page 21: Dhw Performance

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 DHW Performance DHW Performance Table Page 21...
  • Page 22 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 DHW Power Chart for 10-55C Primary Return Temperatures for 10-55C Page 22...
  • Page 23 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Primary Flow Rates for 10-55C Primary Pressure Drop for 10-55C Page 23...
  • Page 24 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Domestic Hot Water Pressure Drop for 10-55C Page 24...
  • Page 25: Central Heating Temperature Curves

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Central Heating Temperature Curves Primary Return Temperature Primary Flow Rate - CH Page 25...
  • Page 26 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Secondary Flow Rate - CH Pressure Drops Page 26...
  • Page 27: Installation Set-Up

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Installation Set-up Stage 1 - Removing the front cover The front cover can be removed by extracting the 4 screws, one in each corner of the front cover. It is support by the top flange, so can simply be lifted off using the handles provided.
  • Page 28 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Stage 2 - Mounting the HIU The casing is mounted directly to the wall using the 4 keyhole slots punched into the back panel. It is important to use the correct fixings for the wall construction and to ensure that the wall is capable of supporting the weight of the HIU.
  • Page 29 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Stage 3 - Pipe Connections Page 29...
  • Page 30 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Stage 4 - Installing the Heat Meter The HIU is supplied with or without the heat meter (as per specification), however in order to change the heat meter, it is necessary to...
  • Page 31 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Stage 6 - Venting the Heating System It is important that the central heating system within the property is completely bled of air. The HIU is equipped with a manual air vent, connected to the central heating circuit of the HIU.
  • Page 32 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Stage 7 - Commissioning Follow the steps below for connecting and commissioning the HIU. (assuming all hydraulic systems are filled and vented) 1. Close all isolation valves in the property.
  • Page 33 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Page 33...
  • Page 34 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Stage 8 - Re-fitting the front cover The front cover is fitted by locating the top flange first and then rotating the bottom of the cover down to line up with the screw holes.
  • Page 35: Adjusting Temperatures And Settings

    Primary flow rate will reduce the temperature of the water flowing into the central heating circuit. The DATA Extra HIU is fitted with the DN25 valve and details on its adjustment are shown on page 2 of the Installation Guide below, with related flow rates shown on page 4.
  • Page 36 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 The Primary return temperature function is disabled by default, however when enabled, the default limit is set to 55C. It is possible to alter this temperature by accessing the HIU via a ModBus connection.
  • Page 37 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Page 37...
  • Page 38 The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Page 38...
  • Page 39: Troubleshooting For End Users

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Troubleshooting for End users What can you do? Always take in account the safety of yourself and others when performing a troubleshoot. Leakage 1. Close all valves on the plumbing bracket under the unit and the mains cold water feed.
  • Page 40: Troubleshooting (For Technicians)

    The DATA Extra HIU, Installation Instructions DE2, 12th August 2021 Troubleshooting (for Technicians) Page 40...
  • Page 41: Guarantees And After Sales Backup For Hius

    In the UK only on items provided exclusively by Thermal Integration. b. If the product is installed by a Thermal Integration approved engineer in compliance with the installation instructions. c. The installer must complete the commissioning checklist in full at the time the HIU is installed. This checklist must be returned to Thermal Integration within 30 days of commissioning.
  • Page 42 Consumables as specified by us, including but not limited to: hoses, gaskets and batteries. 7. Report any faults to your installer, service engineer or Thermal Integration directly. Faulty parts must be accompanied by a fully completed Thermal Integration Warranty Return form, to be returned to Thermal Integration. Returned items remain the property of Thermal Integration Ltd.

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