Rehau NEA SMART 2.0 Service Manual
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Rehau NEA SMART 2.0 Service Manual

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NEA SMART 2.0 SERVICE MANUAL
Manual for Designer, Installer and Service Partner

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  • Page 1 NEA SMART 2.0 SERVICE MANUAL Manual for Designer, Installer and Service Partner...
  • Page 2 This service manual “NEA SMART 2.0” is valid from October 2019. The actual Technical Information is available for download under www.rehau.com/TI. This document is protected by copyright. The rights conferred therein are reserved, in particular those relating to the translation, reprinting, extraction of...
  • Page 3 MANUAL Security Introduction System overview Function Component selection Installation System set up Operating of NEA SMART 2.0 SYSTEM Parameter Data Scheme Data sheets...

  • Page 4: Table Of Contents

    Selection of energy levels 4.8.5 User Web pages 4.1.6 Rules for overriding individual energy levels by global 4.8.6 NEA SMART 2.0 App setting 4.8.7 Warnings and alarm functions 4.1.7 Temporary room temperature set point change System response in case of fault (timed mode) 4.9.1...
  • Page 5 Change batteries of Room Units and Probes 7.4.4 Pairing of NEA SMART 2.0 Room probes Parameter 7.4.5 Pairing of NEA SMART 2.0 outdoor sensor 7.4.6 Further settings on NEA SMART 2.0 Room units Heating general Configuration Wizard 9.1.1 Heating circuits 7.5.1 Introduction 9.1.2...
  • Page 6 10.3.3 NEA SMART 2.0 R-Module 230 V 10.3.4 NEA SMART 2.0 R-Module 24 V 10.3.5 NEA SMART 2.0 U-Module 24 V 10.3.6 NEA SMART 2.0 U-Module 24 V – Mixed Circuit 10.3.7 NEA SMART 2.0 U-Module 24 V - Dehumidifier Scheme 11.1...

  • Page 8: Security

    Use in line with the specification Safety information The NEA SMART 2.0 control system must be configured, installed and operated only as described in this technical information and in the Legal information other installation manuals for the system. Any other use is not in accordance with the specification and is therefore not permitted.

  • Page 9: Introduction

    - Smart functions that ensure a high level of comfort and ensure effective operation The NEA SMART 2.0 App is not only easy and user-friendly to use, it - Suitable for new installations and retrofitting also offers many features that make the system a really smart system.

  • Page 10: System Overview

    Connecting the system to the cloud allows the user to enjoy optimisation, analysis and The NEA SMART 2.0 control system is a modular solution for radiant remote maintenance functions. heating and cooling systems which can be configured for multiple systems.

  • Page 11: Sytem Overview

    Sytem overview Fig. 3-2 System overview NEA SMART 2.0 for 24 V 2: NEA SMART 2.0 Base 24 V, central control 5: NEA SMART 2.0 U-Module 24 V, extensi- SYSBUS System Bus (4-wire Bus, shielded unit (Master) with transformer, for up to...

  • Page 12: Components Of The System

    - Hybrid technology for connecting a maximum of 8 NEA SMART 2.0 - Flat housing, for mounting directly on the wall or on a flush mounting Room units in bus or wireless technology - Extension of 4 rooms with NEA SMART 2.0 R-Module...
  • Page 13 Installation in the manifold cabinet. 4 additional rooms. - Hybrid technology for connecting a maximum of 8 NEA SMART 2.0 - Connection to NEA SMART 2.0 Base 24 V via 2-wire Zone bus Room units in bus or wireless technology (ZOBUS), polarity reversal protected - Extension of 4 rooms with NEA SMART 2.0 R-Module...
  • Page 14 Wireless outdoor sensor, assignable to NEA SMART 2.0 Base. For Antenna for optional connection to NEA SMART 2.0 Base to increase wall mounting. the range of the radio signal to the NEA SMART 2.0 Room units. - Mounting the antenna outside the manifold cabinet. NEA SMART 2.0 Remote sensor Thermal actuator UNI 230 V / 24 V Fig.

  • Page 15: Functions And Features

    3.4.4 Integrated WLAN/LAN, operation via browser or app The NEA SMART 2.0 Base has WLAN/LAN as well as a web server standard „on board“. Systems used purely to control temperature (with a base) can be set up and operated using a standard web browser.

  • Page 16: Smart Functions

    The control of the flow temperature of the heating and cooling connection potential for actuators is exhausted or different systems, surfaces can be done via the NEA SMART 2.0 U-Module. Up to three such as underfloor heating or ceiling cooling, are present in a room.

  • Page 17: Operation, Monitoring And Maintenance On User App

    This allows dehumidifiers to be activated via the NEA SMART The maintenance and repair options make things easier, especially for 2.0 Base or the NEA SMART 2.0 R-Modules as well as the NEA larger systems or systems which are further away.

  • Page 18: Function

    - hysteresis for heating limit - heating period definition - room temperature in pilot rooms which describes the path for web page or NEA SMART 2.0 - time since last active cooling mode App, starting from the main menu to the sub-menu containing...

  • Page 19: Only Heating / Only Cooling

    4.1.2 Only Heating / only Cooling There are 4 different energy levels: NORMAL These operating modes follow the same rules as in HEATING / COOLING (automatic mode). The selected mode is activated as soon as the Energy level NORMAL should be active when the room is occupied. conditions are fulfilled.

  • Page 20: Rules For Overriding Individual Energy Levels By Global

    or the web pages for all rooms (global) or for each room individually. Reaction of the App: When the global mode is selected using the web page, it is applied to all The App proposes all rooms except hobby room and the room for rooms.

  • Page 21: Heating And Cooling Systems

    Supply of systems 4.2.1 Available systems The NEA SMART 2.0 System can control up to 3 mixed circuits in heating and cooling mode, which can be selected for the available The following systems may be chosen during configuration sequence: systems...
  • Page 22 External input signals HEATING, COOLING When the NEA SMART 2.0 system is part of a super ordinated system In the night to day 3 there is a temperature drop down to 7 °C, the – e.g. a heat pump which supplies several apartments – it must follow next 2 days reach in the afternoon almost 15 °C and then even 17 °C,...

  • Page 23: Influence Of Pilot Rooms

    4.3.2 Influence of pilot rooms Allowed Input Input mode HEATING COOLING existing State existing State Pilot rooms influence the set point of flow temperature in the following way: - When one of the pilot rooms is too cold – where the definition of “too cold”...

  • Page 24: Cooling Mode

    Cooling mode Examples for cooling criterion settings Example 1: Cooling mode of the system may be started and stopped depending - Type of application: on the following conditions or parameters: Good insulated office building with heavy internal loads. - Selected operating mode by user - Defined heating or cooling period - Demands: - Calculated cooling criterion...

  • Page 25: Flow Temperature Set Point In Cooling Mode

    4.4.2 Flow temperature set point in cooling mode A sufficient safety margin to calculated dew point must The calculation of flow temperature set point in cooling mode must be selected according to the conditions in the installation. take into account the following demands: - Avoid condensation on cooled surfaces It has to be taken into account that - Ensure user comfort...

  • Page 26: Summer Compensation

    To reduce potential noise polution caused by running dehumidifiers at Supply control of heat and cool media otherwise quiet times, a weekly program can be used to start the dehumidifiers during “quiet times” only when a 2nd, higher limit of This chapter describes how the system controls the supply of heated or relative humidity or dew point is exceeded.

  • Page 27: Mixed Circuits

    A local pump is started, whenever a room connected to The demand signal of a mixed circuit is created only a manifold supplied directly from a source has triggered when the opening of the mixing valve exceeds a a demand signal. minimum level.

  • Page 28: Controller Type: Proportional - Integral (Pi)

    4.6.2 Controller type: Proportional – Integral (PI) Typical cycle times are 20 minutes for floor and wall systems, 10 minutes for ceiling systems. Room temperature control works on base of a proportional – integral (PI) controller. The proportional part of the control signal gives an immediate reaction when the difference between set point and actual Relevant parameters value changes.

  • Page 29: Overview To Room Individual Settings

    4.6.4 Overview to room individual settings are the set points which belong to heating and cooling mode for the energy levels NORMAL (room is used) and REDUCED The figure below is taken from the installation wizard and shows room (room is not used at this time). individual settings: is the set point for holiday mode (absent) is the weekly timing program which switches in timer mode...

  • Page 30: Pilot Rooms

    - NEA SMART 2.0 Room Units 4.6.7 Pilot rooms Only with the NEA SMART 2.0 App is access to the full range of parameters possible. Important parameters can be modified using the Rooms selected as pilot rooms (6) impact on...

  • Page 31: Remote Temperature Probe For Room Units

    Limiting of minimum and maximum floor temperature: With NEA SMART 2.0 it is possible to assign a single room unit minimum value for cooling and maximum value for heating – or – to multiple channels across a base station and any directly 2 minimum values for cooling or maximum value for heating connected R-Module.

  • Page 32: Digital Input And Output Signals

    Digital input and output signals The digital input and output signals of NEA SMART 2.0 System allow - Activation of devices such as pumps, boiler, chiller - Switching of valves - Communication of status / operating mode - Receiving warning / alarm information...

  • Page 33: Digital Output Signal

    4.7.2 Digital output signal Digital output signals are potential free relay outputs (dry contacts). OUTPUT signal Available on Condition to activate signal Pump local Base, R-Module A room assigned to this base or a connected R-module has a current demand signal (heating or cooling) a dehumidifier allocated to the base or connected R-module triggers the “hydraulic”...

  • Page 34: System Operating And Monitoring

    Integrated web pages - Hardware installation completed - All communication bus connections are made and checked The NEA SMART 2.0 Base has an integrated web server, with web - Room Units, Room Probes and outside temperature sensors are pages in 15 languages.

  • Page 35: Installer Only Web Pages - Room Setup And Parametrization

    - Scanning and verification of components connected to the commu- nication bus To use the NEA SMART 2.0 App, it is necessary to connect the Base - Parameterisation of all U-Modules (control of mixed circuit, dehumi- (only the system master) to a router and to establish the connection to dification control) the cloud.

  • Page 36: System Response In Case Of Fault

    In such a case the After 1 hour of communication loss the NEA SMART 2.0 Base reports valves would be closed every time the flow temperature drops below the set point.
  • Page 37 3. Detection by dew point monitor connected to U-Module for mixed circuit: Mixed circuit is stopped. Cooling of all rooms connected to this mixed circuit is stopped. Frost protection The frost alarm symbol is shown when the room temperature drops below 5 °C.

  • Page 38: Component Selection

    (see below for examples) - Up to 2 dehumidifiers If the NEA SMART 2.0 is part of a heating and cooling installation The minimum configuration of a NEA SMART 2.0 systems is: clarification is to be sought on which system (NEA SMART 2.0 or - 1 NEA SMART 2.0 Transformer (if Base 24 V is used)

  • Page 39: Selection Process

    There are two possibilities to control dehumidifiers: NEA SMART NEA SMART - Make use of the digital outputs of a NEA SMART 2.0 Base and 2.0 Base 2.0 R-Module R-Module (maximum 1 dehumidifiers can be wired to one Base) NEA SMART - Make use on a NEA SMART 2.0 U-Module (maximum 2 dehumidi-...

  • Page 40: Digital Inputs

    This function can be used if the tempera- ture of the room should be controlled via the average The input of the NEA SMART 2.0 Room unit can either be configured temperature between two locations. The remote probe is limited to 3 m cable length.

  • Page 41: Digital Outputs

    Digital Outputs Digital Outputs can be used to control other devices such as pumps or boiler. Digital Outputs can be used on the NEA SMART 2.0 Base, NEA SMART 2.0 R-Module and NEA SMART 2.0 U-Module. NEA SMART 2.0 Base and R-Module A maximum of four digital outputs can be configured on a single NEA SMART 2.0 Base.

  • Page 42: Internet Connection

    DHCP client. Therefore NEA can be used only within the Networks with running instance of DHCP server. In more complex installations with more than one NEA SMART 2.0 Bases, only the master base station requires an internet connection.

  • Page 43: Wiring

    The NEA SMART 2.0 communication architecture consists of two separate BUS systems. The System Bus (SYSBUS) connects the NEA SMART 2.0 Bases and the NEA SMART 2.0 U-Modules. The following rules must be considered: The Zone Bus (ZOBUS) connects the NEA SMART 2.0 Base, the NEA - Must be installed in series SMART 2.0 R-Module and the wired room units.

  • Page 44: Application Examples

    Zone bus (ZOBUS) to connect the Room unit NEA SMART 2.0 Room unit, wireless ZOBUS NEA SMART 2.0 Base 24 V, central control unit (master); LAN/WLAN interface to connect the system to router and cloud for up to eight rooms NEA SMART 2.0 Transformer 24 V...

  • Page 45: Heating And Cooling System With Mix Of Wireless And Wired Room Units And R-Module (Up To Twelve Rooms)

    Heating and Cooling system with mix of wireless and wired Room units and R-Module (up to twelve rooms) Fig. 5-3 NEA SMART 2.0 system, room control for heating/cooling for up to 12 rooms Zone bus (ZOBUS) to connect the Room units and R-Module 6...

  • Page 46: Heating And Cooling System With Mix Of Wireless And Wired Room Units And Slaves (Up To Twenty Four Rooms)

    Heating and Cooling system with mix of wireless and wired Room units and slaves (up to twenty four rooms) SYSBUS SYSBUS Fig. 5-4 NEA SMART 2.0 system, room control for heating/cooling for up to 24 rooms Zone bus (ZOBUS) to connect the Room units LAN/WLAN interface to connect the system to router and cloud ZOBUS...

  • Page 47: Heating And Cooling System With Mix Of Wireless And Wired Room Units And U-Module (For Mixed Circuit)

    Heating and Cooling system with mix of wireless and wired Room units and U-Module (for mixed circuit) SYS B U S Fig. 5-5 NEA SMART 2.0 system, room control for heating/cooling with control for a mixed circuit Zone bus (ZOBUS) to connect the Room units Router for LAN/WLAN home network and connection to cloud...

  • Page 48: Installation

    6 INSTALLATION Leaflets The installation of the individual components is described in the leaflets that come with the devices. All leafleats can also be found at www.rehau.com/neasmart2...

  • Page 49: System Set Up

    Different complexity of systems (class A, B, C) Switch power Switch power supply ON supply OFF In terms of complexity and functionality, 3 classes of NEA SMART 2.0 system can be differed: All POWER/FUSE LED's Class A – room temperature control heating only (1 Base) green? Simple system with one NEA SMART 2.0 Base only, optional with...

  • Page 50: Set System Bus Addresses

    For NEA SMART 2.0 U-Module: The following components are using the system bus to communicate: - NEA SMART 2.0 Base units (one Master and up to 4 Slaves) - NEA SMART 2.0 U-Module (up to 5 modules) Each of these devices needs an individual address.

  • Page 51: Check Power / Fuse Led's

    Check manifold actuators During this time span, all other outputs of the NEA SMART 2.0 Base For the first 5 times, the NEA SMART 2.0 Base is switched on, the are blocked. outputs of the channels, where the manifold actuators are connected, are switched on one after the other for about 10 minutes.

  • Page 52: Pairing

    It is possible, to pair a device to one or more channels, but it is not possible, to pair more than one device to one channel of the NEA SMART 2.0 Base. Each new paired device deletes the previous pairing of another device, if it is done on the same channel.

  • Page 53: Pairing Of Nea Smart 2.0 Room Units

    This 48 hour time span starts again if the room unit/ room probe gets unpowered and repowered again. See chapter 7.4.6 for detals. To pair a NEA SMART 2.0 Room unit: For wireless room units (with display): > 3 sec <...

  • Page 54: Pairing Of Nea Smart 2.0 Room Probes

    By pressing OK long you jump to installer level To show the already paired channels, press minus symbol To start pairing sequence again (NEA SMART 2.0 Base must be in pairing mode), press plus symbol Fig. 7-5 Pairing outdoor sensor By pressing OK, the next screen appears.
  • Page 55 OK Actuator test Brightness Fig. 7-7 Settings Nea Smart 2.0 Room units Input selection The probe or contact connected to the additional input of the room units can be defined here (or later in the configuration wizard). The parameters are:...

  • Page 56: Configuration Wizard

    To use the configuration wiz-ard, you have to connect your The configuration wizard is a tool which allows you to set up a system, device (smart phone, tablet, ...) in AP mode to the NEA SMART 2.0 starting from simple applications as a room temperature control system Base.

  • Page 57: Example For Configuration

    NEA SMART 2.0 Base 2 NEA SMART 2.0 U-Modules - Actuators installed on the manifold for ceiling cooling are connected to NEA SMART 2.0 R-Module, which is installed directly beside the Characteristics: manifold - There are 4 rooms: 2 of them have underfloor heating and ceiling cooling, the other 2 only underfloor heating.

  • Page 58: General Settings

    - Simple installations have only 1 NEA SMART Base 2.0, optionally Please follow the instructions in the browser and avoid going back and with one NEA SMART 2.0 R-Module forward. - Installation with at least 1 system bus component (U-Module or...

  • Page 59: Enter System Components And Functions

    8 rooms and the R-Module works with additional 4 rooms. Please note: To use this, the system has to be online and the address of the installation has to be set in the NEA SMART 2.0 App. Fig. 7-11 Webpage: System components Fig. 7-13 Webpage: Configuration not possible...

  • Page 60: Scan System Bus Components

    7.5.7 Scan system bus components 7.5.8 Define function of system bus components Sysbus scan checks all system bus members: In this example, there are 2 U-modules, one of them has to be used for the mixed circuit. U-Module1 (address 00) shall be used for the mixed circuit, U-Module2 (address 04) is used for 2 dehumidifiers.

  • Page 61: Input / Output Assignment Of U-Modules For Mixed Circuit

    7.5.9 Input / output assignment of U-Modules for mixed circuit Fig. 7-17 Webpage: U-Module, input/output Fig. 7-18 Webpage: U-Module, input/output Options: To verify correct wiring and operation of pump and actuator of mixing - Use return temperature probe valve, you can use “Confirm & test”. Enables boost mode in heat up phase - Use digital input for dew point monitor Remark:...

  • Page 62: Definition Of Mixed Circuit Operating

    7.5.10 Definition of mixed circuit operating 7.5.12 Input / output assignment of U-Modules for dehumidifiers The mixed circuit can be used for different systems in heating and One U-Module can control 2 dehumidifiers. cooling mode. When dehumidifiers are used which have an additional coil for cooling The setting influences parameters for the intake air, REL 1 and REL 3 are used for opening a valve for each - Minimum and maximum temperature in heating and cooling mode...

  • Page 63: Overview Of Base Units

    See the settings according our example in picture on next page. Fig. 7-23 Webpage: Device configuration The configuration of the base is not been done, sym bolized by “Status”. Function of NEA SMART 2.0 Base (Master, Slave...) Type of NEA SMART 2.0 Room unit...
  • Page 64 After configuration of the rooms, the page shows the following: Disp TH RC Main RZ 3 is paired to: Disp TH RC Main RZ 1 is paired to: zones 3, 4 - underfloor heating by zones 1,2 - underfloor heating by manifold 1 manifold 1 zones 11, 12 - ceiling cooling by...

  • Page 65: Definition Of Outputs Of The Base

    7.5.15 Definition of outputs of the Base 7.5.16 Definition of inputs of the Base The screen below shows the default output configuration of a master. By default, there are no input signals defined. The options are shown The function of each of the below options is described in chapter 5.3.5. below.

  • Page 66: End Of Wizard, Enable Or Disable Automatic Mode

    OK. Once the system configuration is done, there is a time delay of about 10 minutes before the NEA SMART 2.0 system will start working. During this time, all data from all components is processed and analysed.

  • Page 67: Timer Programs

    7.6.1 Timer programs Daily program set up: Fig. 7-33 Webpage: Timer programs There are 5 weekly programs and 10 daily programs. For each day of the week, a different daily program can be chosen. The weekly programs are applied for the room temperature set points and for the dehumidifiers.

  • Page 68: Room Set Up

    Fig. 7-38 Webpage: Set up daily program, new time span 7.6.2 Room set up Fig. 7-39 Webpage: Room set up When you enter the menu for rooms, the room names are correspon- ding to the Main RZ (Master-1 is RZ 1, see paragraph 7.5.14)
  • Page 69 Installer page for room: Options: Change room name Define room temperature set points for Heating normal / reduced mode Cooling normal / reduced mode Heating holiday (absent) mode Note: Cooling is stopped in holiday mode Select weekly program for room temperature set points Info button shows the daily programs for the select-ed weekly program Choose one of the dehumidifiers for this room, here:...

  • Page 70: System Data

    7.6.3 System data Note: The defined time span is the permission for the system to enter this mode. Depending on the system configuration it is also possible, to overrule the defined periods. The summertime (daylight saving time) is disabled, when 00-00 is entered.

  • Page 71: Reset Functions

    7.7.3 Reset Controller to initial state Settings page contains the most relevant parameters, additional parameters can be modified in the REHAU NEA SMART 2.0 App Influences activation of heating cooling mode - Press OK for 3 secs - Controller enters pairing sequence Flow temperature setting and control behaviour of mixed circuits - Press <, OK and >...

  • Page 72: Operating Of Nea Smart 2.0 System

    8 OPERATING OF NEA SMART 2.0 SYSTEM The NEA SMART 2.0 System can be operated and monitored by user, The integrated web pages can be accessed by one device only. installer and service company using Internet connection is not needed, and in this mode also not possible.

  • Page 73: Operating By Nea Smart 2.0 Room Units

    Operating by NEA SMART 2.0 Room units 8.1.1 Display information Fig. 8-1 Nea SMART 2.0 Room unit The Room unit is operated using the Home button and the +/- symbols. The display is switched off during sleep mode. It is activated by pressing the Home button. Only then the plus/minus symbols become visible.
  • Page 74 Party Display of temperature Party mode is active Shows the current room temperature (R) or the setpoint of room temperature (S). Holiday Holiday mode is active Display of room humidity Room unit locked Shows the relative humidity in the room. Buttons are locked Display of operating mode Error message...

  • Page 75: Order Of The Displayed Information

    8.1.2 Order of the displayed information 8.1.3 Setting the Setpoint of room temperature To activate the display, press the Home button once. To see the Setpoint, press +/- once. 3s / Initial state Display of current room temperature Display of current humidity in the room Display of operating mode Heating or cooling Display of operating status optional: If room unit has a light ring, it flashes additionally for confirmation.

  • Page 76: Operating Status

    This means that the order The procedure how to connect a smartphone, tablet or laptop with the can deviate from the image. NEA SMART 2.0 Basis is described in chapter 7 of this manual. 8.2.2 User area...
  • Page 77 Note: In order to ensure comfortable conditions and an - Changes to the room temperature target value during timed energy-efficient operation, we recommend that you operating mode are valid until the next switching point of the time select the timed operating mode. program - Changes during fixed “normal”...
  • Page 78 Timer programs: Sytem: Fig. 8-7 Webpage: Timer program The 5 weekly programs consist of daily programs for the individual days. There are 10 daily programs that can be defined in a 15-minute time grid. The displayed sections are rounded to one hour. The areas marked in red indicate the periods of time defined for “normal”...
  • Page 79 WPA2 key for access point (AP) mode: 55 % r.H. / 80 % r.H. Change the WPA2 key of NEA SMART 2.0 Base here, if you intend to use the system in AP mode. The relative humidity indicates the extent to which the air is saturated with moisture.

  • Page 80: Installer Area

    8.2.3 Installer area The graph below shows the complete installer menu structure. Heating / Cooling settings Activation of heating / cooling mode Gemischte Kreise System set up procedure Heizkurven, Installer Configuration wizard Temperaturen main menu Devices Rooms Set points and functions Run and pause times of bailer, chiller, pumps Timer...
  • Page 81 Access to installer main menu In this chapter the following menu items are not described: - “System set up procedure”: The installer area may be entered from user menu: This starts the wizard again This can be used to see the detailed configuration of the system also without changing anything.
  • Page 82 Mixed circuits Devices Fig. 8-16 Webpage: Mixed circuits settings Fig. 8-17 Webpage: Devices settings...
  • Page 83 Functions Dehumidifier settings Fig. 8-18 Webpage: Functions settings Control settings (here shown for floor only) Fig. 8-19 Webpage: Control settings Fig. 8-20 Webpage: Dehumidifier settings...
  • Page 84 The naming of the dehumidifiers is: State of inputs / outputs U-Module Dehumidifier Device to which Adress of 1st or 2nd dehumidifier is U-Module dehumidifier on connected U-Module Please note: The pre-defined settings for reduced mode were chosen so, that during this phase dehumidifiers should not run under normal conditions.

  • Page 85: Operating By Rehau Smart 2.0 App

    The password must be at least 10 characters long, contain at least one uppercase and one lowercase letter, a number and a The NEA SMART 2.0 App can be downloaded from the google® play special character. store and apple® app store.

  • Page 86: Getting To Know The App

    Fig. 8-27 App: Scan code on the base Step 4: After successful pairing of App and NEA SMART 2.0 installation, the Confirm by briefly pressing the OK button. app will show the start screen with all the rooms of you installation.
  • Page 87 Home: Timing programs The Home screen displays (from top to bottom) The Timing program screen displays (from top to bottom) - Name of the Installation - Daily/ weekly program, vacation/ party - Current weather and weather forecast - Main navigation bar - Information on current energy level, operating mode and WiFi connection - Overview of all rooms...
  • Page 88 - Main navigation bar - Rooms/ Zones - Legal - Help - Explore REHAU - Icon to change between installations (only if more than one installation is linked to the account) - Main navigation bar Fig. 8-32 App: Diagnostics screen...

  • Page 89: First Steps In The App

    NEA SMART 2.0 installation. - Standby: Rooms will not follow any set point. Only frost protection is active and rooms will be heated, once their temperature drop To change the name of the room, choose the room in the main below 7 °C...

  • Page 90: Smart Function Geofencing

    Define timing programs NEA SMART 2.0 offers the possibility, to create ten different daily The first person, except an installer, that pairs the NEA SMART 2.0 programs. The ten daily programs can be combined to five different installation to the App is the manager of the system. The manager can weekly programs.

  • Page 91: Faq's And Troubleshooting

    FAQ’s and troubleshooting 8.4.2 Error-codes on NEA SMART 2.0 Room Units 8.4.1 Problems and potential causes The room doesn’t get warm enough: - Setpoint is set too low - Room is in reduced mode - An open window has been detected, so the heating is temporarily...

  • Page 92: Change Batteries Of Room Units And Probes

    If the “battery weak” message occurs, the batteries must be changed. Fig. 8-39 NEA SMART 2.0 Room Unit: Close front panel To do this, open the housing of the NEA SMART 2.0 Room Unit with a screwdriver (recommended width: 5 mm).

  • Page 93: Parameter

    1 - Installer area of the webpage only given if the user is registered as an installer. 2 - NEA SMART 2.0 App Please contact your local sales team for more information. The web page shows the most important parameters whereas the...

  • Page 94: Heating Circuits

    9.1.1 Heating circuits During the start-up, a parameter set is created for each heating circuit in line with the utilisation of the heating circuit (floor/wall, ceiling, BKT). The parameters are used as - Default values if a mixed circuit is specified during the configuration The following additional parameters are specified individually for each - Reference values during supply of heating system (e.g.

  • Page 95: Heating Circuits, Boost Function

    Text in parameter menu Comment Base Unit value MIXH12 Compensation factor for Influence of the deviation between set point and actu- 0 : 1 room temperature al value of room temperatures on flow temperature 1 : 1 2 : 1 MIXH13 Boost mode allowed The boost mode function is allowed.

  • Page 96: Heating Circuits, Boost Function

    Heating circuits, boost function To find in App: Home  More  Settings  Installer  Control Parameters  Heating  General Parameters Text in parameter menu Comment Base Unit value Cooling mode start Delay of start of cooling mode in minutes after cooling 1440 delay time criterion is fulfilled.

  • Page 97: Cooling Circuits

    9.2.1 Cooling circuits To find in App: Home  More  Settings  Installer  Control Parameters  Cooling  Cooling Circuits Text in parameter menu Comment Base Unit value Min.value supply temp. Minimum value of flow temperature in normal mode °...

  • Page 98: Room Temperature Control

    Room temperature control Legend for Base value: 0 : Floor 1 : Wall 2 : Ceiling To find in App: Home  More  Settings  Installer  Control Parameters  Room Temperature Control Text in parameter menu Comment Base Unit value RO1(n)

  • Page 99: Device Control

    Device control 9.5.1 Heater control To find in App: Home  More  Settings  Installer  Device  Heating Unit Text in parameter menu Comment Base Unit value Minimum demand time Minimum time the heating device gets started for in heating device minutes Position of mixing valve for...

  • Page 100: Dehumidifier Control

    9.5.3 Dehumidifier control To find in App: Home  More  Settings  Installer  Device  Dehumidifier Text in parameter menu Comment Base Unit value DHAN Activation dehumidifier in When this value of relative humidity is exceeded, the normal mode dehumidifier is started during the enable time of his timing program.

  • Page 101: Pump Control

    9.5.4 Pump control To find in App: Home  More  Settings  Installer  Device  Pumps Text in parameter menu Comment Base Unit value PU1(n) Pump local / global Pump is used as local pump or as global pump false true true...

  • Page 102: Data

    1,0 – 1,5 mm² cable 10.2 Factory settings Some of the In- and Outputs of the NEA SMART 2.0 system are already predefined. The definition of those In- and Outputs can be changed on the integrated Webpages of the system.

  • Page 103: R-Modul

    10.2.2 R-Modul Digital Outputs Connection Signal type Pre-defined Allocation Possible Allocation Absence Open Window Alarm Heating DI 1 Cooling Reduced local Reduced global Dew point Digital Inputs Pump local RELAY 1 Switch Pump global Boiler Chiller RELAY 2 Switch Dehumidifier valve Dehumidifier compressor Heating RZ9-12...

  • Page 104: U-Module (Defined As Dehumidifier)

    10.2.4 U-Module (Defined as Dehumidifier) Digital Outputs Connection Signal type Pre-defined Allocation Possible Allocation RELAY 1 Switch Dehumidifier 1 valve RELAY 2 Switch Dehumidifier 1 compressor RELAY 3 Switch Dehumidifier 2 valve RELAY 4 Switch Dehumidifier 2 compressor Digital Inputs DI 1 DI 2 DI 3...

  • Page 105: Allocation Of The Clamps

    ZOBUS for R-Modules and Room unit SYSBUS for U-Module and additional Bases (slaves) Base Slave 4 2 3 4 Freely configurable – U-Module Room SYSBUS Unit … R-Module ZOBUS … Fig. 10-1 Allocation of the clamps - NEA SMART 2.0 Base 24 V...

  • Page 106: Nea Smart 2.0 Base 230 V

    ZOBUS for R-Modules and Room unit SYSBUS for U-Module and additional Bases (slaves) Base Slave 4 2 3 4 Freely configurable – U-Module Room SYSBUS Unit … R-Module ZOBUS … Fig. 10-2 Allocation of the clamps - NEA SMART 2.0 Base 230 V...

  • Page 107: Nea Smart 2.0 R-Module 230 V

    Zone Bus Digital Input 1 Zone 9 – 12 Relay 1, 5 A, Class 2 Relays 2, 5 A, Class 2 Fuse T2 A Freely configurable – Fig. 10-3 Allocation of the clamps - NEA SMART 2.0 R-Module 230 V...

  • Page 108: Nea Smart 2.0 R-Module 24 V

    Zone Bus Digital Input 1 Zone 9 – 12 Relay 1, 5 A, Class 2 Relays 2, 5 A, Class 2 Fuse T2 A Freely configurable – Fig. 10-4 Allocation of the clamps - NEA SMART 2.0 R-Module 24 V...

  • Page 109: Nea Smart 2.0 U-Module 24 V

    Analog Input: 1 ... 3 NTC 10K – Analog Output: 0 – 10 V Digital Input 1 – 4 SYSBUS DIP Switch for SYSBUS address Relay 1 – 4 5 A, Class 2 Fig. 10-5 Allocation of the clamps - NEA SMART 2.0 U-Module 24 V...

  • Page 110: Nea Smart 2.0 U-Module 24 V - Mixed Circuit

    BASE Supply temperature sensor Relay 1 Return temperature sensor L1´ L2´ 0 – 10 V 3-way valve SYSBUS DIP Switch for SYSBUS address 230V Fig. 10-6 Allocation of the clamps - NEA SMART 2.0 U-Module 24 V - Mixed circuit...

  • Page 111: Nea Smart 2.0 U-Module 24 V - Dehumidifier

    Dehumidifier 1 Dehumidifier 2 Dehumidifier 2 SYSBUS DIP switch for SYSBUS address Hydraulic valve dehumidifier 1 Demand dehumidifier 1 Hydraulic valve dehumidifier 2 Demand dehumidifier 2 Fig. 10-7 Allocation of the clamps - NEA SMART 2.0 U-Module 24 V - Dehumidifier...

  • Page 112: Scheme

    11 SCHEME 11.1 Overview Descrition Systemtype Place Base R-Module U-Module Sensor Sets Simple Room Temperature Control Underfloor heating House/ Apartment with single floor Enlarged Room Temperature Control Underfloor heating House/ Apartment with two floors Enlarged Room Temperature Control with Underfloor heating House/ Apartment chilled ceiling + chilled ceiling...

  • Page 113: Simple Room Temperature Control

    11.1.1 Simple Room Temperature Control Fig. 11-1 Simple Room Temperature Control - Underfloor heating - House/ Apartment with single floor...

  • Page 114: Enlarged Room Temperature Control

    11.1.2 Enlarged Room Temperature Control Fig. 11-2 Enlarged Room Temperature Control - Underfloor heating - House/ Apartment with two floors...

  • Page 115: Enlarged Room Temperature Control With Chilled Ceiling

    11.1.3 Enlarged Room Temperature Control with chilled ceiling Fig. 11-3 Enlarged Room Temperature Control with chilled ceiling - Underfloor heating + chilled ceiling - House/ Apartment with single floor...

  • Page 116: Simple Room Temperature Control With Mixed Circuit

    11.1.4 Simple Room Temperature Control with mixed circuit Fig. 11-4 Simple Room Temperature Control with mixed circuit - Underfloor heating and cooling - House/ Apartment with single floor...

  • Page 117: Simple Room Temperature Control With Mixed Circuit And Two Dehumidifiers

    11.1.5 Simple Room Temperature Control with mixed circuit and two dehumidifiers Fig. 11-5 Simple Room Temperature Control with mixed circuit and two dehumidifiers - Underfloor heating and cooling - House/ Apartment with single floor...

  • Page 118: Simple Room Temperature Control With Mixed Circuit

    11.1.6 Simple Room Temperature Control with mixed circuit Fig. 11-6 Simple Room Temperature Control with mixed circuit - Underfloor heating and cooling - House/ Apartment with two floors...

  • Page 119: Room Temperature Control With Chilled Ceiling, Mixed Circuit And Two Dehumidifiers

    11.1.7 Room Temperature Control with chilled ceiling, mixed circuit and two dehumidifiers Fig. 11-7 Room Temperature Control with chilled ceiling, mixed circuit and two dehumidifiers - Underfloor heating + chilled ceiling + dehumidifier - House/ Apartment with two floors...

  • Page 120: Simple Room Temperature Control With Chilled Ceiling, Mixed Circuit And Dehumidifiers

    11.1.8 Simple Room Temperature Control with chilled ceiling, mixed circuit and dehumidifiers Fig. 11-8 Simple Room Temperature Control with chilled ceiling, mixed circuit and dehumidifiers - Underfloor heating + chilled ceiling + dehumidifier - House with three floors...

  • Page 121: Large Room Temperature Control

    11.1.9 Large Room Temperature Control Fig. 11-9 Large Room Temperature Control - Underfloor heating - Light Commercial...

  • Page 122: Data Sheets

    Bus based room unit for NEA SMART 2.0 control system, with temperature measurement and white LED dot-matrix display. Light ring for signalization and ambient light. This device can be used only with NEA SMART 2.0 Base 24 V, optional in combination with NEA SMART 2.0 R-Module 24 V. Technical data:...

  • Page 123: Nea Smart 2.0 Room Unit Trw

    Wireless operating room unit for NEA SMART 2.0 control system, with temperature measurement and white LED dot-matrix display. This device can be used only with NEA SMART 2.0 Base 24 V, optional in combination with NEA SMART 2.0 R-Module 24 V.

  • Page 124: Nea Smart 2.0 Room Unit Hbw

    LED dot-matrix display. Light ring for signalization and ambient light. This device can be used only with NEA SMART 2.0 Base 24 V, optional in combination with NEA SMART 2.0 R-Module 24 V. Technical data:...

  • Page 125: Nea Smart 2.0 Room Unit Hrw

    Wireless operating room unit for NEA SMART 2.0 control system, with temperature and humidity measurement and white LED dot-matrix display. This device can be used only with NEA SMART 2.0 Base 24 V, optional in combination with NEA SMART 2.0 R-Module 24 V. Technical data:...

  • Page 126: Nea Smart 2.0 Room Unit Hbb

    LED dot-matrix display. Light ring for signalization and ambient light. This device can be used only with NEA SMART 2.0 Base 24 V, optional in combination with NEA SMART 2.0 R-Module 24 V. Technical data:...

  • Page 127: Nea Smart 2.0 Room Unit Hrb

    Wireless operating room unit for NEA SMART 2.0 control system, with temperature and humidity measurement and white LED dot-matrix display. This device can be used only with NEA SMART 2.0 Base 24 V, optional in combination with NEA SMART 2.0 R-Module 24 V. Technical data:...

  • Page 128: Nea Smart 2.0 Room Probe Tbw

    Functional description Bus based room unit for NEA SMART 2.0 control system, with temperature measurement. This device can be used only with NEA SMART 2.0 Base 24 V, optional in combination with NEA SMART 2.0 R-Module 24 V. Technical data:...

  • Page 129: Nea Smart 2.0 Room Probe Hbw

    Bus based room unit for NEA SMART 2.0 control system, with temperature and humidity measurement. This device can be used only with NEA SMART 2.0 Base 24 V, optional in combination with NEA SMART 2.0 R-Module 24 V. Technical data:...

  • Page 130: Nea Smart 2.0 Room Probe Trw

    Functional description Wireless operating room unit for NEA SMART 2.0 control system, with temperature measurement. This device can be used only with NEA SMART 2.0 Base 24 V, optional in combination with NEA SMART 2.0 R-Module 24 V. Technical data:...

  • Page 131: Nea Smart 2.0 Room Probe Hrw

    Wireless operating room unit for NEA SMART 2.0 control system, with temperature and humidity measurement. This device can be used only with NEA SMART 2.0 Base 24 V, optional in combination with NEA SMART 2.0 R-Module 24 V. Technical data:...

  • Page 132: Nea Smart 2.0 Base 24 V

    Communication possibilities: connection to REHAU cloud. - ZOBUS (2-wire bus for Nea Smart 2.0 Room Units) and 869 MHz RC network for Nea Smart 2.0 Room Units Room temperature control of up to 8 rooms, up to 12 actuators can - System bus for connection of extension modules and Nea Smart 2.0...

  • Page 133: Nea Smart 2.0 Base 230 V

    Communication possibilities: connection to REHAU cloud. - ZOBUS (2-wire bus for Nea Smart 2.0 Room Units) and 869 MHz RC network for Nea Smart 2.0 Room Units Room temperature control of up to 8 rooms, up to 12 actuators can - System bus for connection of extension modules and Nea Smart 2.0...

  • Page 134: Nea Smart 2.0 R-Module 24 V

    SMART 2.0 Base 24 V by 4 additional channels. This device works and chiller, 1 configurable digital input. only with a NEA SMART 2.0 Base 24 V. Only 1 NEA SMART 2.0 R-Module 24 V may be connected to a NEA SMART 2.0 Base 24 V.

  • Page 135: Nea Smart 2.0 R-Module 230 V

    SMART 2.0 Base 230 V by 4 additional channels. This device works and chiller, 1 configurable digital input. only with a NEA SMART 2.0 Base 230 V. Only 1 NEA SMART 2.0 R-Module 230 V may be connected to a NEA SMART 2.0 Base 230 V.

  • Page 136: Nea Smart 2.0 U-Module 24 V

    All inputs/outputs are predefined according to selected function. Control of 1 mixed circuit or control of up to 2 dehumidifiers. This device works only in the system bus network of NEA SMART 2.0 4 relay outputs (dry contacts), for control of pump and dehumidifier.

  • Page 137: Nea Smart 2.0 Transformer

    12.16 NEA SMART 2.0 Transformer Material number: 13280191001 Functional description Safety transformer for NEA SMART 2.0 system components. Primary voltage 230 VAC, secondary voltage 24 V AC with maximum power 60 VA. Technical data: Primary voltage 230 V AC ±15 % / 50 Hz Secondary voltage 24 V AC ±...

  • Page 138: Nea Smart 2.0 Remote Sensor

    12.17 NEA SMART 2.0 Remote sensor Material number: 13280331001 Functional description Remote sensor for NEA SMART 2.0 Room units for: - Floor temperature monitoring - Usage as additional room temperature probe. Technical data: Power supply none Sensor type NTC 10 K Sensor accurancy ±5 % @25 °C...
  • Page 139 10000 RESISTANCE----TEMPERATURE CURVE NTSF0103JZ642 =3975K 25/85 1000 TEMPERATURE()

  • Page 140: Nea Smart 2.0 Vl/Rl Sensor

    12.18 NEA SMART 2.0 VL/RL sensor Material number: 13280391001 Functional description Flow and return sensor for NEA SMART 2.0 U-Module for: - Flow temperature monitoring - Return temperature monitoring Technical data: Power supply none Sensor type NTC 10 K Sensor accurancy ±5 % @25 °C...
  • Page 141 10000 RESISTANCE----TEMPERATURE CURVE NTSF0103JZ642 =3975K 25/85 1000 TEMPERATURE()

  • Page 142: Nea Smart 2.0 Outdoor Sensor

    Material number.: 13280341001 Functional description Wireless operating outside temperature probe for NEA SMART 2.0 control system. This device can be used only with NEA SMART 2.0 Base 24 V. Technical data: Power supply 1 x LR06 (AA) Lithium battery 3,6 V...

  • Page 143: Nea Smart 2.0 Antenna

    12.20 NEA SMART 2.0 Antenna Material number.: 13280351001 Functional description External antenna for NEA SMART 2.0 Base for radio communication to NEA SMART 2.0 Room units (869 MHz). Technical data: Power supply By NEA SMART 2.0 Base Operating range in buildings...
  • Page 144 95111 Rehau insofar as nothing else has been agreed upon with REHAU in writing. This shall also apply means, electronic or mechanical, photocopying, recording or otherwise, or stored in a data...

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