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Siemens Climatix S300 HRV Application Manual

Siemens Climatix S300 HRV Application Manual

Heat recovery ventilation with controllers
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Service
Organization
End user
Installer
Climatix™
Heat Recovery Ventilation with S300 HRV
controllers
Application Guide
A6V10733786_en_c
2020-12-16
Production
management
Building
management
Smart Infrastructure

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Summary of Contents for Siemens Climatix S300 HRV

  • Page 1 Production management Service Building Organization management End user Installer Climatix™ Heat Recovery Ventilation with S300 HRV controllers Application Guide Smart Infrastructure A6V10733786_en_c 2020-12-16...

  • Page 2: Table Of Contents

    Table of contents Safety ....................... Cyber security disclaimer ................. Password security ..................Legal note....................About this document................. Document conventions ................Revision history ..................Validity ...................... Before you start ..................2.4.1 Trademarks................. 2.4.2 Copyright ..................2.4.3 Target readers ................2.4.4 Purpose of the document............Abbreviations....................
  • Page 3 Application functionalities ................. Application use cases................Controlling of operating modes..............Operating mode categories ..............5.3.1 Normal modes ................5.3.2 Temporary modes............... 5.3.3 Special modes (At home / Away)..........5.3.4 Off mode ..................Operating mode settings ................Fan speed control..................5.5.1 Linear fan speed (VntCtl23y, FanSu23y, FanEh23y) ....
  • Page 4 5.21.1 General ..................135 5.21.2 Alarm codes ................138 5.21.3 Error presentation in Cloud ............140 5.22 Periodical maintenance function............... 141 5.23 Analysis functions..................142 Engineering of communicative devices ............ 145 PL-Link ..................... 145 Modbus components ................146 6.2.1 I/O extension module POS9............147 6.2.2 Air pressure sensor #1 QBM97..

  • Page 5: Safety

    In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art security concept. Siemens’ portfolio only forms one element of such a concept. You are responsible for preventing unauthorized access to your plants, systems,...

  • Page 6: Legal Note

    Safety Legal note 1.3 Legal note Legal note concept This guide includes notes that must be followed to prevent damage to property. Notes dealing only with damage to property use the signal word NOTICE and an exclamation point. They are depicted as follows: NOTICE Type and source of hazard Consequences in the event the hazard occurs...

  • Page 7: About This Document

    About this document Document conventions 2 About this document 2.1 Document conventions Depiction of text markups Special text markups are displayed as follows in this document: ⊳ Prerequisite for an instruction       ⇨ Interim result of an instruction ⇨ Final result of an instruction Text Hyperlink, reference "Text"...
  • Page 8 About this document Revision history Version Date Changes Section 2020-07-16 ● Device changes… ● Controller POS3.3515/100 deleted different sections ● WLAN stick POL903 introduced 2. QBM97 #2 introduced ● New features, changes, corrections… Information restructured; exhaust air temp. is "The"; ranges Controller board [➙ 37] changed ●...

  • Page 9: Validity

    About this document Validity 2.3 Validity This document applies to the following application: Application Version Hardware (ASN) Climatix heat recovery 2.473 and above POS3.5715/100 ventilation application 2.4 Before you start 2.4.1 Trademarks The trademarks used in this document are listed together with their legal owners in the following table.

  • Page 10: Copyright

    Before you start 2.4.2 Copyright This document may only be duplicated and distributed with the express permission of Siemens and may be passed only to authorized persons or companies with the required technical knowledge. 2.4.3 Target readers Target audience for this manual are development departments of HVAC manufacturers (OEM) as well as installers of the S300 HRV.

  • Page 11: Abbreviations

    About this document Abbreviations 2.5 Abbreviations The following abbreviations are used throughout the document: Air quality Carbon dioxide Configured BI A configured binary input can be used as a rudimentary user interface DP switch Differential pressure switch Energy recovery Feedback Heat Recovery Ventilation Input / Output Manual operation mode...

  • Page 12: Documentation And Short Description Of Compatible Devices

    About this document Documentation and short description of compatible devices 2.6 Documentation and short description of compatible devices Application documents Document title Document type Document ID Climatix S300 Heat Recovery Ventilation Application guide A6V11417931 (this document) S300 HRV End User Climatix App Quick Guide A6V11841954 (see also “Apps, access...”)
  • Page 13 About this document Documentation and short description of compatible devices Modbus I/O extension modules with air pressure sensors Document title Document type Document ID Modbus I/O extension module for POS3.., Datasheet A6V11725998 POS9.1515/100 Modbus air pressure sensor with I/O extension, QBM97.. Datasheet A6V11478118 Mounting instructions...
  • Page 14 About this document Documentation and short description of compatible devices Room sensors Document title Document type Document ID Wall-mounted sensors and room operator units Data sheet N1602 QMX3.P.. Room sensors for relative humidity and temperature Datasheet CE1N1857 QFA20.. Fine Dust Room Sensors QSA2700D / QSA2700 / Datasheet A6V11160938 AQS2700...
  • Page 15 App store share Customizable upon request End-user Operation app for end-user including Customizable start code from Siemens In the responsibility of the Climatix app scheduler available. Please address to local sales customer representative.

  • Page 16: Short Description Of Application

    In addition, the controllers have an IP interface, which allows integration into higher-level automation systems. A simple and extended integration of field devices or sensors from the Siemens portfolio or from third parties is made possible by the open communication interfaces.

  • Page 17: System Overview - Topology

    Short description of application System overview - Topology 3.1 System overview - Topology A selection of interfaces allows the controller to be connected to various configuration, operating and monitoring options. Connectivity for different Production work roles management Service Building Organization management End user Installer...

  • Page 18: Schematic Plant Diagram

    Short description of application Schematic plant diagram 3.2 Schematic plant diagram 18 | 170 A6V10733786_en_c...
  • Page 19 Short description of application Schematic plant diagram AqualEx Extract air quality AQualR Room air quality DiffPFanEh Differential pressure exhaust air fan DiffPFanSu Differential pressure supply air fan DmpOaCmd Outside air damper command FanEhSpd Exhaust air fan speed FanEhSpdFb Exhaust air fan speed feedback FanSuSpd Supply air fan speed FanSuSpdFb...

  • Page 20: Preheating (Prehcl)

    Short description of application Schematic plant diagram 3.2.1 Preheating (PreHcl) EaHxDmpbCmd Earth-to-air heat exch.byp.damp.command Earth-to-air Outside temperature BO:EaHxDmpbCmd AI:TOa PreHclOvrTDet Preheating coil overtemperature detector Electric PreHclElPos Preheating coil electric position PreHclElCmd Preheating coil electric command BI:PreHclOvrTDet (NC) AO:PreHclElPos BO:PreHclElCmd TFlPreHcl Flow temperature preheating coil Brine PreHclPuCmd...

  • Page 21: Energy Recovery (Erc)

    Short description of application Schematic plant diagram 3.2.2 Energy recovery (Erc) HExgDmpBypPos Heat exchanger bypass damper Plate position AO:HExgDmpBypPos HExgDmpBypCmd Heat exchanger bypass damper command BO:HExgDmpBypCmd HExgCdnMon Heat exchanger condensation monitor HExgDiffPMon Heat exchanger diff.pressure monitor BI:HExgCdnMon HExgDmpBypCmd Heat exchanger bypass damper Rotary command RotHExgSpd...

  • Page 22: Heating (Hcl)

    Short description of application Schematic plant diagram 3.2.3 Heating (Hcl) HclOvrTDet Heating coil overtemperature detector Electric HclElPos Heating coil electric position HclElCmd Electric heating coil command BI:HclOvrTDet (NC) AO:HclElPos BO:HclElCmd TFrPrtHcl Frost protection temp.for heating coil Water HclPuCmd Heating coil pump command HclVlvPos Heating coil valve position AI:TFrPrtHcl...

  • Page 23: Cooling (Ccl)

    Short description of application Schematic plant diagram 3.2.4 Cooling (Ccl) CclPuCmd Cooling coil pump command Water CclVlvPos Cooling coil valve position BO:CclPuCmd AO:CclVlvPos CclDxCmd Cooling coil DX evaporator command Direct evaporator CclDxPos Cooling coil DX evaporator position CclDxFlt Cooling coil DX evaporator fault BO:CclDxCmd AO:CclDxPos BI:CclDxFlt...

  • Page 24: Control Inputs / Outputs

    Short description of application Schematic plant diagram 3.2.5 Control inputs / outputs BI: control inputs CmfOpModRln Input room operating mode comfort EcoOpModRln Input room operating mode economy UcdOpModRln Input room operating mode unoccupied PrtOpModRln Input room operating mode protection KtchVntln Kitchen hood ventilation input FplcVntln Fireplace ventilation input...

  • Page 25: Configuration

    1. Connect POL903 with POS3.5715 device on the USB port. 2. Power on POS3.5715 device 3. The WLAN signal is available after 5 minutes (phone or PC). 4. The default WLAN name is Siemens-WLAN-Stick and default password is SIBPAdmin 5. The address for the WLAN Stick configuration is https://10.123.45.1:441 6.

  • Page 26: Abt Go Configuration

    Configuration ABT Go configuration 4.2 ABT Go configuration The concept for the configuration of the controller is split into 2 parts: Basic configuration: choosing the functions Select the desired control functions for the heat recovery ventilation system. The applications depend on the installed devices and intended use. Extended configuration: configuring the hardware Set the required input and output signals at the desired terminals according to the application choices made in the first step.

  • Page 27: Accessing The Device

    Now you can navigate to the desired menus. The default password the first time you connect to ABT Go is: OneBT Once the Siemens default password has been entered, a new password has to be defined. This password has to comply with the following rules: ●...

  • Page 28: Extended Configuration

    Configuration ABT Go configuration 4.2.3 Extended configuration To change the device configuration online in ABT Go: 1. Go to Device > Configuration > Online configuration extended NOTICE: Entering the Configuration mode stops the application! Cancel aborts without changes. 2. Tap OK. The device is set to the Configuration mode.

  • Page 29: Choosing The Functions

    Configuration Choosing the functions 4.3 Choosing the functions Refer to the list below to set the functions of the application accordingly. Some of the functions may require certain hardware (peripheral devices). Control functions Control function BACnet object Selection Note Ventilation control STR_VIEW, 402 Ventilation control 21y, air Controls the measured air flow to values depending on...
  • Page 30 Configuration Choosing the functions Plant components Plant component BACnet object Selection Note Preheating coil STR_VIEW, 122 None No preheating device available (default) Electric preheating coil 21y Electric preheating coil available (default) Brine preheating coil 21y Preheating coil using energy from the surrounding earth via brine Earth to air heat exchanger Heat exchanger using energy from the surrounding earth...

  • Page 31: Selecting The Device Connections

    Configuration Selecting the device connections 4.4 Selecting the device connections Peripheral devices as well as room operating units and additional room sensors must be activated (set to "Active") in the basic configuration before they can be used in the application. As soon as a device is set to active, it can be connected and further configured.

  • Page 32: Room Operating Unit / Monitoring Devices Pos8

    Configuration Selecting the device connections 4.4.2 Room operating unit / Monitoring devices POS8 Available devices One device of type POS8.4420 (room temperature) or POS8.4440 (room temperature and humidity) can be connected to controller board using KNX / PL- Link. Activating the device Room operator unit BACnet object Selection...

  • Page 33: Configuring The Hardware

    Configuration Configuring the hardware 4.5 Configuring the hardware The I/Os on the controller board and peripheral devices do not have a designated function. Only for the controller board, the I/Os for default functions are set (see “Default configuration [➙ 48]”). Depending on the application and the functions selected in Basic configuration, the required I/O signals must be set at the desired terminals.
  • Page 34 Configuration Configuring the hardware Controller board 4 x analog inputs (resistor) 3 x digital outputs (relay) 2 x digital inputs 4 x analog outputs 4 x multi-type inputs 1 x digital output (triac) Interface Type Note B1, B2, B3, B4 Analog Input 1) Resistor NTC10k X1, X2...
  • Page 35 Configuration Configuring the hardware Extension module Extension module (POS9) 2 x analog inputs (pressure) 1 x digital output (relay) 1 x analog input (resistor) 1 x analog output 1 x analog input Interface Type Note P21, P22 Differential pressure input Analog Input 1) Resistor NTC10k Analog Input...
  • Page 36 Configuration Configuring the hardware Air pressure sensor Air pressure sensor (QBM97) 2 x analog inputs (pressure) 2 x analog outputs 1 x analog input (resistor) 1 x analog input Interface Type Note P1, P2 Air pressure input Analog Input 1) Resistor NTC10k Analog Input 1) Measuring 0…10V AO1,AO2...

  • Page 37: Input Settings

    Configuration Configuring the hardware 4.5.1 Input settings 4.5.1.1 Controller board The following functions can be selected for input signals on the controller board: Input B1, B2, B3, B4 Parameter BACnet object Selection for B1 B1Sel, STR_VIEW,41 Selection for B2 B2Sel, STR_VIEW,43 Selection for B3 B3Sel,...
  • Page 38 Configuration Configuring the hardware Input X2 Parameter BACnet object Selection for X2 X2Sel, STR_VIEW,55 Selection BACnet object Signal type Range None Exhaust air fan speed feedback FanEhSpdFb 0…300Hz 0…100 % pulse Exhaust air fan speed feedback FanEhSpdFb 0…10V 0…100 % voltage Extract air quality AQualEx 0…10V 0…2000 ppm...
  • Page 39 Configuration Configuring the hardware Input X8 Parameter BACnet object Selection for X8 X8Sel, STR_VIEW,59 Selection BACnet object Signal type Range None Extract air temperature NTC10k -50…80 °C Exhaust air temperature NTC10k -50…80 °C Supply air temperature after heat TSuAfHExg NTC10k -50…80 °C exchanger Supply air temperature after TSuAfPreHcl NTC10k...
  • Page 40 Configuration Configuring the hardware Input D1, D2 Parameter BACnet object Selection for D1 D1Sel, STR_VIEW,49 Selection for D2 D2Sel, STR_VIEW,51 Selection BACnet object Signal type Range None Rapid ventilation input RpdVntIn Contact Kitchen hood ventilation input KtchVntIn Contact Fireplace ventilation input FplcVntIn Contact Air filter differential pressure...
  • Page 41 Configuration Configuring the hardware 4.5.1.2 Extension module The following functions can be selected for pressure sensors and input signals on the I/O extension module POS9. Input P21 Parameter BACnet object Selection for P21 P21Sel, STR_VIEW,73 Selection BACnet object Signal type Range None Differential pressure supply air fan...
  • Page 42 Configuration Configuring the hardware 4.5.1.3 Air pressure sensors The following functions can be selected for pressure sensors and input signals on the air pressure sensors QBM97 # 1 and /or #2. Input P1 Parameter BACnet object Selection for P1 P1Sel, QBM97#1: STR_VIEW,329 QBM97#1: STR_VIEW,424 Selection...
  • Page 43 Configuration Configuring the hardware Input AI1 Parameter BACnet object Selection for AI1 AI1Sel, QBM97#1: STR_VIEW,333 QBM97#1: STR_VIEW,429 Selection BACnet object Signal type Range None Outside air temperature NTC10k -50…50 °C Extract air temperature NTC10k -50…80 °C Exhaust air temperature NTC10k -50…80 °C Supply air temperature after heat TSuAfHExg...

  • Page 44: Output Settings

    Configuration Configuring the hardware 4.5.2 Output settings 4.5.2.1 Controller board The following functions can be selected for output signals on the controller board: Outputs Q1, Q2, Q3 Parameter BACnet object Selection for Q1 Q1Sel, STR_VIEW,61 Selection for Q2 Q2Sel, STR_VIEW,62 Selection for Q3 Q3Sel, STR_VIEW,63 Selection...
  • Page 45 Configuration Configuring the hardware Outputs A1, A2, A3, A4 Parameter BACnet object Selection for A1 A1Sel, STR_VIEW,264 Selection for A2 A2Sel, STR_VIEW,266 Selection for A3 A3Sel, STR_VIEW,268 Selection for A4 A4Sel, STR_VIEW,270 Selection BACnet object Signal type Range None Supply air fan speed FanSuSpd 0…10V 0…100 %...
  • Page 46 Configuration Configuring the hardware 4.5.2.2 Extension module The following functions can be selected for output signals on the extension module POS9: Output Q21 Parameter BACnet object Selection for Q21 Q21Sel, STR_VIEW,71 Selection BACnet object Signal type Range None Outside air damper command DmpOaCmd Relay Fire damper command...
  • Page 47 Configuration Configuring the hardware 4.5.2.3 Air pressure sensors The following functions can be selected for output signals on the duct pressure sensor QBM97 #1 and / or #2. Outputs AO1, AO2 Parameter BACnet object Selection for AO1 AO1Sel, QBM97#1: STR_VIEW,337 QBM97#1: STR_VIEW,460 Selection for AO2 AO2Sel,...

  • Page 48: Default Configuration

    Configuration Configuring the hardware 4.5.3 Default configuration The controller's I/O are preconfigured for the following applications: ● Supply and exhaust fan speed control (with feedback signal 0...10V) ● Heat exchanger (plate type) with on/off bypass ● Pre-electric heating coil (modulation control) ●...

  • Page 49: Required I/Os

    Configuration Configuring the hardware 4.5.4 Required I/Os If an I/O that is required for a functionality is missing, ABT Go / ABT Site indicate this with a configuration check message. If the required I/Os cannot be detected, ABT Go / ABT Site prompts with a message e.g.
  • Page 50 Configuration Configuring the hardware Parameters Parameter BACnet object Configuration check I/O config. check for IOCnfCkVnt, STR_VIEW, 84 Messages for ventilation related ventilation functions I/O config. check for heat IOCnfCkHxDmp, STR_VIEW, 85 Messages for heat exchanger and exchanger and damper damper related functions I/O config.

  • Page 51: General Settings

    Configuration General settings 4.6 General settings 4.6.1 Actual configuration The configuration parameters are only accessible and thus visible in controller stop mode. However, the selected configuration is copied to information parameters - called actual configuration - that are visible in every controller state and can also be checked via ABT Go / ABT Site.
  • Page 52 Configuration General settings BACnet object Actual configuration for A3 ActlA3Cnf, MVAL,434 Actual configuration for A4 ActlA4Cnf, MVAL,435 Actual configuration for Y1 ActlY1Cnf, MVAL,372 Actual configuration for I/Os BACnet object POS9.. extension module Actual configuration for P21 ActlP21Cnf, MVAL,361 Actual configuration for P22 ActlP22Cnf, MVAL,362 Actual configuration for X21 ActlX21Cnf, MVAL,363...

  • Page 53: Language Selection

    Configuration General settings 4.6.2 Language selection The controller supports the following languages: ● English ● German ● French ● Italian ● Spanish Languages can be selected in the client (e.g. Climatix IC, ABT Go, ABT Site or End user app). All translated objects will be shown in the selected language. 4.6.3 Device Description The “Device Description”...

  • Page 54: Controller Configuration: Password Protected Access By User Roles

    Configuration backup ● Configuration restore 4.6.5 Factory Reset A Special BIN file can reset the controller to Siemens factory default settings (including a password reset). You must request the BIN file. The controller must be reset to factory settings on site.

  • Page 55: Application Use Cases

    Application functionalities Application use cases 5 Application functionalities 5.1 Application use cases The application can be operated in two different use cases that 1. HRV system as the only influence on air flow: Characteristics: ● Changes in fan speed have a direct influence on the air flow in the multiple rooms.

  • Page 56: Controlling Of Operating Modes

    Application functionalities Controlling of operating modes 5.2 Controlling of operating modes Three control modes, Auto, Manual or Temporary, are available for the operation of the plant. The system modes control whether the system switches between different operating modes automatically or whether the user sets the operating modes himself (for Operating modes see "Operating mode categories [➙ 57]").

  • Page 57: Operating Mode Categories

    Application functionalities Operating mode categories 5.3 Operating mode categories The following selectable operating modes belong to operating mode categories: Operating mode Category Operating via Duration Activation signal Protection Off mode APP, DI Permanent Unoccupied Normal or Away mode APP, POS8, DI Permanent or TSP Economy Normal mode...

  • Page 58: Special Modes (At Home / Away)

    Application functionalities Operating mode categories 5.3.3 Special modes (At home / Away) “At home”-mode and “Away”-mode are preset special modes that the end user can switch between via End User app or POS8.44x0. ● If the application is switched to Away, operating mode is set to Unoccupied. ●...

  • Page 59: Operating Mode Settings

    Application functionalities Operating mode settings 5.4 Operating mode settings The settings for the operating modes define the specific settings for the supply and exhaust fans for all operating modes and for the speed, flow and pressure control strategies. These settings are configured by the installer. The end user has no option to change the values for the operating modes.

  • Page 60: Fan Speed Control

    Application functionalities Fan speed control 5.5 Fan speed control The controller supports three different types of fan control strategies: ● Linear fan speed ● Constant air flow control ● Constant duct pressure control. See "Choosing the functions [➙ 29]". Only one type of control strategy can be active at a time and the same strategy must be used for both the supply and exhaust fan.

  • Page 61: Linear Fan Speed (Vntctl23Y, Fansu23Y, Faneh23Y)

    Application functionalities Fan speed control 5.5.1 Linear fan speed (VntCtl23y, FanSu23y, FanEh23y) Fan speed control Supply fan and exhaust fan setpoints have defined setting for each operating mode level. Individual percentage value is used between 0…100 %. These settings only define the fan speed used in various operating modes and they have no effect on other functions like de-icing or AQ/r.H.
  • Page 62 Application functionalities Fan speed control 5.5.1.1 Available parameters for supply fan (linear fan speed) Available parameters for Current state BACnet object R/RW Unit supply fan Present ventilation setpoint PrSpAQual for air quality control AVAL,50 Supply fan speed FanSuSpd Prio 2: Fire / Smoke A1: AO,102 Prio 5: Protection A2: AO,111...
  • Page 63 Application functionalities Fan speed control 5.5.1.2 Available parameters for exhaust fan (linear fan speed) Available parameters for Current state BACnet object R/RW Unit exhaust fan Exhaust fan speed FanEhSpd Prio 2: Fire / Smoke A1: AO,103 Prio 5: Protection A2: AO,112 A3: AO,121 A4: AO,130 Modbus: AO,150...

  • Page 64: Constant Air Flow Regulation (Vntctl21Y, Fansu21Y, Faneh21Y)

    Application functionalities Fan speed control 5.5.2 Constant air flow regulation (VntCtl21y, FanSu21y, FanE- h21y) Fan speed control Supply fan and exhaust fan setpoints have defined air flow settings for each operating mode level. Setpoint used in the controller is m These settings only define the flow used in various operating modes and they have no effect on other functions like de-icing, AQ/r.H.
  • Page 65 Application functionalities Fan speed control Available parameters for Unit configuration BACnet object R/RW Unit air flow control Air flow nominal AirFlNom AVAL,187 Maximum air flow of the unit Air flow minimum AirFlMin AVAL,186 Minimum air flow of the unit Minimum fan speed FanSpdMinRel AVAL,192 Fan speed feedback fault Limit...
  • Page 66 Application functionalities Fan speed control Operating mode settings BACnet object R/RW Unit Kitchen hood: supply SpAirFlSuKtch AVAL,273 De-icing air flow SpAirFlSuDeic AVAL,181 Special settings BACnet object R/RW Unit Supply fan Kp TnAirFlSuCtr % / (m PINTVAL,97 Supply fan Tn GainAirFlSuCtr AVAL,191 K-factor, supply fan AirFlSuCoef...
  • Page 67 Application functionalities Fan speed control 5.5.2.2 Available parameters for exhaust fan (constant air flow) Available parameters for Current state BACnet object R/RW Unit exhaust fan Present flow setpoint exhaust SpAirFlEh AVAL,227 Present flow exhaust AirFlEh AVAL,228 Exhaust fan pressure diff. DiffPFanEh AVAL,20 (POS9) AVAL,461 (QBM)
  • Page 68 Application functionalities Fan speed control Testing and debugging BACnet object R/RW State Fan device mode FanEhDevMod 1: Off Prio 2: Fire / Smoke MVAL,161 2: Control mode Prio 5: Protection 3: Max.air vol.flow 4: Min.air vol.flow 5: Manual speed 6: Smoke ctrl. air flow setp 7: De-icing air vol.flow 8: Startup...

  • Page 69: Constant Duct Pressure (Vntctl22Y, Fansu22Y, Faneh22Y)

    Application functionalities Fan speed control 5.5.3 Constant duct pressure (VntCtl22y, FanSu22y, FanEh22y) Fan speed control Supply fan and exhaust fan have defined duct pressure setpoints for each operating mode, Pascal value is used. By using PSu and PEx pressure sensors, the function controls fan speed to maintain duct pressure at a constant level.
  • Page 70 Application functionalities Fan speed control Available parameters for Unit configuration BACnet object R/RW Note constant duct pressure Duct pressure nominal PSuNom, Pa; Maximum duct pressure of the unit AVAL,119 Duct pressure minimum PDuctMin AVAL,198 Minimum fan speed FanSpdMinRel AVAL,201 Fan speed feedback fault FanSpdFbFltLm limit AVAL,197...
  • Page 71 Application functionalities Fan speed control Oper. mode settings BACnet object R/RW Note Unoccupied: supply SpPSuUcd AVAL,281 Economy: supply SpPSuEco AVAL,280 Comfort: supply SpPSuCmf AVAL,279 Fire: supply SpPSuFplc AVAL,71 Kitchen hood: supply SpPSuKtch AVAL,282 Special settings BACnet object R/RW Unit Supply fan Kp GainPSuCtr %/Pa AVAL,200...
  • Page 72 Application functionalities Fan speed control 5.5.3.2 Available parameters for the exhaust fan (constant duct pressure) Available parmeters for Current state BACnet object R/RW Unit exhaust fan Present pressure setpoint exhaust SpPEx AVAL,234 Present pressure exhaust AVAL,457 (POS9) AVAL,462 (QBM) Exhaust fan speed FanEhSpd Prio 2: Fire / Smoke A1: AO,103...
  • Page 73 Application functionalities Fan speed control Testing and debugging BACnet object R/RW State Fan device mode FanEhDevMod 1: Off Prio 2: Fire / Smoke MVAL,162 2: Control mode Prio 5: Protection 3: Max.air vol.flow 4: Min.air vol.flow 5: Manual speed 6: Smoke ctrl. duct pressure 7: De-icing air vol.flow 8: Startup...

  • Page 74: Fan Speed Control For Temporary Modes

    Application functionalities Fan speed control 5.5.4 Fan speed control for temporary modes 5.5.4.1 Fan boost The Fan boost mode can be activated as a temporary mode to temporarily increase ventilation, e.g. after a bath or in a sauna. In this case, Fan boost is activated directly and kept active until the set time has elapsed.
  • Page 75 Application functionalities Fan speed control 5.5.4.2 Fire place function (Fire place) The Fire place mode can be activated to generate an overpressure with the ventilation for a certain period of time. This overpressure helps to light the fireplace by creating draughts through the chimney. In Fire place mode, the supply fan speed is always higher or equal to the exhaust fan speed.

  • Page 76: Air Quality Control (Vntctl11Y, 12Y, 13Y)

    Application functionalities Air quality control (VntCtl11y, 12y, 13y) 5.6 Air quality control (VntCtl11y, 12y, 13y) 5.6.1 CO2 / carbon dioxide, (AQualCtl21y) By using a CO sensor as an input from room and / or extract duct, this function controls the fan speeds to keep the set ppm-level. Fan Boost, Kitchen Hood and Fire Place have priority, so that the air quality control does not influence the fan speed.
  • Page 77 Application functionalities Air quality control (VntCtl11y, 12y, 13y) Available parameters Current value BACnet object R/RW Unit Air quality value Extract AQualEx AI,67 (X1) AI,71 (X2) AI,73 (X3) AVAL,318 (POS9, X22) AVAL,469 (QBM, AI2) Air quality value Room AQualR AI,105 (QMX.P70) Present ventilation setpoint for air PrSpAQual quality control (flow)

  • Page 78: Fine Dust (Pmctl21Y)

    Application functionalities Air quality control (VntCtl11y, 12y, 13y) 5.6.2 Fine dust (PmCtl21y) By using a PM (particulate matter) sensor as an input from room, this function controls the fan speeds to keep the set concentration level. Separate setpoints can be specified for each normal operating mode. At higher concentrations, the fan speed is increased to supply more fresh air and to prevent the concentration from exceeding the set value (according to PI-control).
  • Page 79 Application functionalities Air quality control (VntCtl11y, 12y, 13y) Special settings BACnet object R/RW Note Run time Pm controller TiRnPmCtl PINTVAL,562 Interruption time Pm controller TiIrptPmCtl PINTVAL,563 Sensor µg/m3 for 0V signal PmRPrcv1 BACnet property 4999 AVAL,539 (X1) AVAL,540 (X2) AVAL,541 (X3) PINTVAL,613 (POS9) PINTVAL,614 (QBM) Sensor µg/m3 for 10V signal...

  • Page 80: Fan Humidity Control (Dhuctl11Y)

    Application functionalities Fan humidity control (DhuCtl11y) 5.7 Fan humidity control (DhuCtl11y) It is possible to use one extract air sensor (0…10V), and up to two room humidity sensors QMX.P40, QMX.P70 and a POS8 with room humidity sensor. In this case, the highest value of all valid sensors is used for humidity control.
  • Page 81 Application functionalities Fan humidity control (DhuCtl11y) Humidity controller, actuator output diagram Available parameters Current value BACnet object R/RW Unit Duct air humidity value HuRelEx % r.H. X1:AI,68 X2:AI,72 X3:AI,74 X22 :AVAL,319 AI2 :AVAL,470 Room air humidity value (QMX.3 P40) HuRelR % r.H. AI,102 Room air humidity value (QMX3.
  • Page 82 Application functionalities Fan humidity control (DhuCtl11y) Testing and debugging BACnet object R/RW Unit Fan dehumidification request FanDhuReq AVAL,185 (AirFl) AVAL,195 (DuctP) AVAL,206 (Lin.fanspd) Preheater dehumidification request EnPreHclDhu On/off BVAL,298 External dehumidifier request DhumDhuReq On/off BVAL,315 82 | 170 A6V10733786_en_c...

  • Page 83: Air Temperature Control

    Application functionalities Air temperature control 5.8 Air temperature control The application supports 2 different ventilation temperature controlling strategies: ● Constant supply air temperature (TSu) control ● Extract (TEx) temperature/room temperature control 5.8.1 Supply air temperature control (TSuCtlH21y) The supply temperature is controlled in accordance to the TSu value to the specified supply temperature setpoint by using available and commissioned heating and cooling components.
  • Page 84 Application functionalities Air temperature control Temperature controller, actuator output diagram If an actuator is not available, not configured, not released, in error or cannot deliver the required heating / cooling function, it is skipped and the next actuator in the sequence is used. Further information regarding the function of the different actuators for temperature control can be found in the description of the actuators.
  • Page 85 Application functionalities Air temperature control Available parameters Current values BACnet object R/RW Unit / Note Supply air temperature °C AI,52 Outside air temperature °C AI,51 Present temperature setpoint °C includes weather AVAL,598 compensation Present setpoint shift heating PrSpShftH shows winter AVAL,96 compensation Present setpoint shift cooling...

  • Page 86: Supply Air Regulation With Outdoor Temperature Compensation

    Application functionalities Air temperature control 5.8.2 Supply air regulation with outdoor temperature compensa- tion During hot summer periods or cold winter times, supply air temperature setpoint may be weather compensated to increase comfort and cost-optimize the operation. Compensation can be activated individually for summer and/or winter with dedicated supply air setpoint increase/decrease.
  • Page 87 Application functionalities Air temperature control Available parameters Winter compensation BACnet object R/RW Note Starting point SttSpShftH Compensation point 1 AVAL,106 (Supply) AVAL,121 (Cascade) Ending point EndSpShftH Compensation point 2 AVAL,107 (Supply) AVAL,122 (Cascade) Setpoint shift SpShftH Compensation point 3 AVAL,108 (Supply) AVAL,123 (Cascade) Summer compensation BACnet object...

  • Page 88: Extract (Room) Temperature Cascade Control (Tcasctlh21Y And Tcasctlc21Y)

    Application functionalities Air temperature control 5.8.3 Extract (room) temperature cascade control (TCasCtlH21y and TCasCtlC21y) Cascade control is useful for controlling the room temperature in situations with strong heat fluctuations in the room, e.g. due to internal heat gains. The basic room temperature level is controlled with a standard heating system (radiator, floor heating, etc.) to its own, slightly lower setpoint value and at the same time the ventilation temperature control aims to keep the room temperature at its setpoint...
  • Page 89 Application functionalities Air temperature control Available parameters Current values BACnet object R/RW Unit Extract air temperature °C B3:AI,53 B4:AI,59 X8:AI,75 X21:AVAL,312 AI1:AVAL,463 Room temperature °C AI,99 (POS4420) AI,120 (POS4440) AI,103 (QMX.P70) AI,101 (QMX.P40) AI,100 (QMX.P30) Supply air temperature °C AI,52 Outside air temperature °C AI,51...

  • Page 90: Fan Heating/Cooling Influence

    Application functionalities Air temperature control Special settings BACnet object R/RW Unit TOa limitation for heating release HLmCmf °C AVAL,120 TOa limitation for cooling release CLmCmf °C AVAL,141 Setpoint heating protection SpHPrt °C AVAL,115 Setpoint cooling protection SpcPrt °C AVAL,138 Gain extract temperature control GainTRCtr AVAL,124 Tn Extract temperature control...

  • Page 91: Energy Recovery

    Application functionalities Energy Recovery 5.9 Energy Recovery 5.9.1 Rotational Heat Exchanger (RotHExg21y) The purpose of energy recovery is to absorb heat/cold from the exhaust air and transfer it back to the supply air side. Energy recovery is usually used as the first heating/cooling element.
  • Page 92 Application functionalities Energy Recovery Special settings BACnet object R/RW Note ERC Tn TnHExgCtr PINTVAL,85 Min.diff.room temp./outs.air temp.f.cool DiffTRTOaMinC AVAL,164 Testing and debugging BACnet object R/RW Note Heat exchanger device mode HExgDevMod 1: Off Prio 2: Fire / Smoke MVAL,145 2: Control mode Prio 4: Protection stuck / broken 3: Max speed Prio 5: Protection plant control...
  • Page 93 Application functionalities Energy Recovery De-icing modes The de-icing mode can be configured as: ● No de-icing ● Reduce ERC speed to a fix value ● Reduce ERC and fan speed ● Reduce ERC speed and increase preheating ● Reduce ERC speed and fan speed and inrcease preheating ●...
  • Page 94 Application functionalities Energy Recovery De-icing with reduced fan speed started by TEh or TOa The temperatures have 2 adjustable limits. The higher limit (stage 1) starts de-icing with ERC only, while the lower limit (stage 2) starts de-icing with ERC and fan speed in parallel (2 stage approach).
  • Page 95 Application functionalities Energy Recovery Basic settings BACnet object R/RW Note De-icing mode configuration DeicModCnf 1: None MVAL,408 2: Erc fix 3: Erc fix + Fans 4: Erc fix + Preh 5: Erc fix + Fans + Preh 6: Erc TEh 7: Erc TEh + Fans 8: Erc TEh + Preh 9: Erc TEh + Fans + Preh De-icing, stage1 limit, heat exchanger...
  • Page 96 Application functionalities Energy Recovery 5.9.1.2 ERC supervision (rotational) A mechanical failure on the ERC (e.g. belt broken, wheel stuck, heat exchanger dirty etc) can be detected via the efficiency of the heat exchanger. For this, the temperature difference between extract air / room air and exhaust air is used. If the difference drops below set value and stays below during set delay time, an alarm is triggered.
  • Page 97 Application functionalities Energy Recovery Rotating heat exchanger – Skip speed function In some situations, ERC may cause vibrations or harmful sounds in a certain speed-range. One skip-speed range can be defined with start and stop limits [%, resolution 0.1] to prevent the control signal from staying in this harmful range longer than ramp up/down times define.
  • Page 98 Application functionalities Energy Recovery ERC efficiency calculation Outside air [°C] Exhaust air temperature [°C] Extract air temperature [°C] TSuAfPreHcl Supply temperature after preheating coil [°C] TSuAfHexg Supply temperature after heat exchanger [°C] Exhaust side Efficiency n is calculated on the exhaust side by the following formula: n = (TEx –...

  • Page 99: Passive Heat Exchanger, Controlled (Plthexg21Y)

    Application functionalities Energy Recovery 5.9.2 Passive Heat Exchanger, controlled (PltHExg21y) The purpose of energy recovery is to absorb heat/cold from the exhaust air and transfer it back to the supply air side. Energy recovery is usually used as the first heating/cooling element.
  • Page 100 Application functionalities Energy Recovery Special settings BACnet object R/RW Note ERC heating / cooling selection HExgEcmSta 0: Heating only Prio 15 : automatic selection BVAL,304 1: Cooling only ERC Kp GainHExgCtr % / K AVAL,359 ERC Tn TnHExgCtr PINTVAL,140 Min.diff.room temp./outs.air temp.f.cool DiffTRTOaMinC AVAL,358 Testing and debugging...
  • Page 101 Application functionalities Energy Recovery 5.9.2.1 ERC De-Icing (passive, controlled) Passive Energy ReCovery units are basically just heat exchangers. They receive warm and humid air on one side and cold on the other which will eventually cumulate ice on the surfaces when the conditions are suitable for that. Passive element usually starts to cumulate ice already close to zero Celsius degree Detecting ice on the heat exchanger or in the ductwork Detecting ice on the heat exchanger or in the ductwork is possible:...
  • Page 102 Application functionalities Energy Recovery Time based De-icing started by TEh or TOa The sensor is not suitable for detecting the end of the deicing phase. Therefore, a fix deicing time is used. After deicing is finished, an off time is started until the next deicing phase can be started again.
  • Page 103 Application functionalities Energy Recovery De-icing with reduced fan speed started by TEh or TOa The temperatures have 2 adjustable limits. The higher limit SpTDeicHExg (stage 1) starts deicing with the bypass damper only, while the lower limit SpTDeicFan(stage 2) starts deicing with bypass damper and fan speed in parallel (2 stage approach). During deicing, fan speed for supply fan and exhaust fan are reduced to configurable values.
  • Page 104 Application functionalities Energy Recovery Basic settings BACnet object R/RW Note De-icing mode configuration (for DeicModCnf 1: None differential pressure indication only) MVAL,410 2: Erc fix 3: Erc fix + Fans 4: Erc fix + Preh 5: Erc fix + Fans + Preh 6: Erc TEh 7: Erc TEh + Fans 8: Erc TEh + Preh...
  • Page 105 Application functionalities Energy Recovery 5.9.2.2 ERC supervision (passive, controlled) A mechanical failure on the ERC (e.g. bypass damper blocked, heat exchanger dirty etc.) can be detected via the efficiency of the heat exchanger. Therefore, the temperature difference between extract air / room air and exhaust air is used. When the difference drops below set value and stays below during set delay time, alarm is generated.
  • Page 106 Application functionalities Energy Recovery ERC efficiency calculation Outside air [°C] Exhaust air temperature [°C] Extract air temperature [°C] TSuAfPreHcl Supply temperature after preheating coil [°C] TSuAfHexg Supply temperature after heat exchanger [°C] Exhaust side Efficiency n is calculated on the exhaust side by the following formula: n = (TEx –...

  • Page 107: Passive Heat Exchanger, Uncontrolled (Plthexg22Y)

    Application functionalities Energy Recovery 5.9.3 Passive Heat Exchanger, uncontrolled (PltHExg22y) The purpose of energy recovery is to absorb heat/cold from the exhaust air and transfer it back to the supply air side. The control of the energy recovery is not possible, the ERC always works with maximum capacity.
  • Page 108 Application functionalities Energy Recovery Humidity influence for TEh or TOa If an extract air humidity sensor is available, the de-icing limit can be lowered, because icing is reduced due to dry extract air. Configured de-icing limit refers to a room / extract humidity value of 80% or higher. This value will be reduced continuously by a configurable temperature drop until the room / extract humidity value reaches 20% or lower.
  • Page 109 Application functionalities Energy Recovery Basic settings BACnet object R/RW Note De-icing supply fan flow SpAirFlSuDeic m3/h AVAL,181 De-icing exhaust fan flow SpAirFlEhDeic m3/h AVAL,226 De-icing supply fan pressure SpPSuDeic AVAL,196 De-icing exhaust fan pressure SpPExDeic AVAL,232 De-icing supply fan speed SpFanSuSpdDeic AVAL,208 De-icing exhaust fan speed SpFanEhSpdDeic...
  • Page 110 Application functionalities Energy Recovery Available parameters Actual values BACnet object R/RW Note Heat exchanger condensation monitoring HExgCdnMon BI,75 (D1) BI,92 (D2) BI,109 (X3) BI,126 (X8) Basic settings for efficiency alarm BACnet object R/RW Note Min difference between extract and outside air DiffTExTOaMin temperature AVAL,382 Min difference between extract and exhaust...

  • Page 111: Heating

    Application functionalities Heating 5.10 Heating An additional heater is used when the ERC is not available for heating or is available for heating but has reached its maximum position. To release the heating, the supply air temperature must fall below the setpoint - heating difference. The heating is supported by preheating if possible, but preheating functions are not included in the supply air temperature sequence.
  • Page 112 Application functionalities Heating Frost protection function The application uses a two-stage antifreeze with 2 special setpoints, which is while unit is in operation intended to prevent freezing while the ventilation is still normally active, and to protect the device when prevention has not been sufficient. The temperature sensor TFrPrtHcl is required for this function and must be located at the coldest point of the water heating coil.

  • Page 113: Electrical Heater (Hclel21Y)

    Application functionalities Heating 5.10.2 Electrical heater (HclEl21y) After ERC has reached its full output but TSu setpoint is not reached, electrical heating coil can be activated and controlled as second heating sequence to raise the supply air temperature TSu. Safety functions Some electric heaters include an output for an overheating safety thermostat.
  • Page 114 Application functionalities Heating Special settings BACnet object R/RW Note Minimum switch off time HclElTiOffMin (Y1) BACnet property 4995 PINTVAL,619 Alarm configuration for overtemperature AlmCnfOvrT PINTVAL,573 Testing and debugging BACnet object R/RW Note Heating coil device mode HclDevMod 1: Off Prio2: Fire / Smoke MVAL,153 2: Control Mode Prio4: Overtemperature protection...

  • Page 115: Cooling

    Application functionalities Cooling 5.11 Cooling Additional cooling is used when the ERC is not available for cooling, is locked for cooling, or is available for cooling but has reached its maximum position. To release cooling, the supply air temperature must rise above the setpoint plus the cooling difference.

  • Page 116: Dx Based Cooling (Ccldx21Y)

    Application functionalities Cooling 5.11.2 DX based cooling (CclDx21y) If ERC cannot maintain the supply air temperature setpoint, direct expansion cooling coil can be activated and controlled as second cooling sequence. Activation and operation of DX cooling differs from water based cooling so that cooling valve request must first rise above 10 % (fix) before activation command to DX unit is given.

  • Page 117: Free Cooling (Freecdtr11Y)

    Application functionalities Cooling 5.11.3 Free cooling (FreeCDtr11y) The purpose of the 'Free cooling' function is to ensure that overheated living area can be cost efficiently cooled down by using the lower outside temperatures just by increasing the air circulation. Activation of the function occurs, when ●...

  • Page 118: Outside Air Dampers (Dmpshoffoa11Y)

    Application functionalities Outside air dampers (DmpShoffOa11y) 5.12 Outside air dampers (DmpShoffOa11y) When ventilation is active the outside air dampers are always open. Both dampers are controlled open/close from one binary output. Delay time for outside air damper opening can be defined to secure that dampers are fully open before fans are started.

  • Page 119: Recirculating Air Damper

    Application functionalities Outside air dampers (DmpShoffOa11y) 5.12.1 Recirculating air damper Recirculating dampers (mixing air dampers) reuse energy from room air as much as possible. Extract air is mixed with outside air where additional heating/cooling devices are in the room and extract air is efficient enough. This controls the supply air temperature and saves energy.
  • Page 120 Application functionalities Outside air dampers (DmpShoffOa11y) Available parameters Actual values BACnet object R/RW Note Outside air damper position DmpOaPos Outside air damper Prio 2: Fire / Smoke AO,163 (A1) Prio 5: Protection from plant control AO,166 (A2) AO,168 (A3) AO,169 (A4) AVAL,741 (AO1) AVAL,745 (AO2) Mixing air damper position...

  • Page 121: Filter Supervision (Filamon21Y)

    Application functionalities Filter supervision (FilAMon21y) 5.13 Filter supervision (FilAMon21y) Supply and extract duct air filters are getting dirty when the unit is in operation and they need to be changed in relatively regular service intervals. Service indication with timer Maintenance interval timer is set on the controller. When the operating hours reach the runtime limit, the contamination level is assumed to be high enough and it’s time to schedule a filter change.

  • Page 122: Preheating Functions

    Application functionalities Preheating Functions 5.14 Preheating Functions Optional preheating functions optimize operation of the HRV especially in winter conditions. An earth to air heat exchanger or a brine coil allow the use of environmental energy from the ground, warming up or cooling down the outside air before reaching the heat exchanger.

  • Page 123: Brine Coil (Prehclbne21Y)

    Application functionalities Preheating Functions 5.14.2 Brine Coil (PreHclBne21y) The brine coil includes a pump and a brine flow temperature sensor. The control depends on the brine flow temperature. A hysteresis of 1 °C (fix) and a minimum run / pause time of 1 min (fix) for the pump prevent it from switching too frequently. In case the temperature sensor is not configured, a configurable estimated brine temperature for summer (cooling) and winter (heating) is used instead.

  • Page 124: Electric Preheating Coil (Prehclel21Y)

    Application functionalities Preheating Functions 5.14.3 Electric Preheating Coil (PreHclEl21y) The electrical preheating coil contains a temperature sensor TSuAfPreHcl before heat recovery and an overtemperature detector. The control is carried out continuously via an analog output, pulsed via a triac output or switched via a binary output.
  • Page 125 Application functionalities Preheating Functions Basic settings BACnet object R/RW Note Kp for temperature control before heat GainPrhTCtr exchanger AVAL,347 Tn for temperature control before heat TnPrhTCtr exchanger PINTVAL,138 Pulse period electrical heater PreHclElPlsPrd (Y1) BACnet property 4984 PINTVAL,620 Minimum switch on time PreHclElTiOnMin( Y1) BACnet property 4994...

  • Page 126: External Dehumidifier

    Application functionalities External dehumidifier 5.15 External dehumidifier Optionally an external dehumidifier can be used. The following control modes can be selected: Mode Design of dehumidifier Running Controls Room installation with integrated Always, except emergency or Internally by control maintenance dehumidifier Room installation and part of Always, except emergency or Humidity control...

  • Page 127: Fire Damper (Fdp11Y)

    Application functionalities Fire damper (Fdp11y) 5.16 Fire damper (Fdp11y) The ventilation unit can be equipped with fire dampers that close automatically when a fire alarm is triggered by duct temperatures. During normal operation with the power switched on, the dampers are always open. In the event of a power failure, the dampers close automatically.
  • Page 128 Application functionalities Fire damper (Fdp11y) FireDmp2 FireDmp1 Available parameters Current values BACnet object R/RW Note Fire damper status FdpSta 1 = moving MVAL,160 2 = closed 3 = open 4 = no move 5 = no close 6 = no open Fire damper feedback FdpFb 0 : one or more dampers not...

  • Page 129: Priority List

    Application functionalities Priority list 5.17 Priority list Different functions require priorities over other functions so that logical/critical operation can be guaranteed. Example Safety functions Off by smoke detector, emergency, supply air temperature or extract air temperature Off by fire damper closed Purge or smoke extract by smoke detector Protection functions Off by water heating coil frost...

  • Page 130: Start-Up / Shut-Down Sequence

    Application functionalities Start-up / shut-down sequence 5.18 Start-up / shut-down sequence For safe and optimum operation of the ventilation unit, special switch-on and switch-off sequences are used to switch the ventilation off and on again. The ventilation unit is normally not "switched off", but can be switched off for maintenance work or in emergency situations.
  • Page 131 Application functionalities Start-up / shut-down sequence Shut-down for Maintenance The air conditioner can be switched off, e.g. for maintenance work, using BI or the BACnet object. In this case, the shutdown sequence is started and the system performs a controlled shutdown. The stop sequence is executed by activating the input PrtOpModRIn or the BACnet object PltShD.

  • Page 132: Safety Functions (Sftyctl11Y)

    Application functionalities Safety functions (SftyCtl11y) 5.19 Safety functions (SftyCtl11y) Ventilation unit can be equipped with various kinds of hazard indicators such as smoke, carbon monoxide detectors or human interaction (push button). Four different situations are implemented: ● Smoke extract, DI signal with configurable plant reaction ●...

  • Page 133: Fire / Smoke / Emergency Off

    Application functionalities Safety functions (SftyCtl11y) 5.19.2 Fire / smoke / emergency off Configured binary input: Smoke extract Within first phase of a fire situation, it can be assumed that ventilation may be used to help the prevailing situation, thus functionality is different from temperature driven fire alarm coming from temperature measurement, fire damper indication, or dedicated emergency off signal.

  • Page 134: Time Counters

    Application functionalities Time counters 5.20 Time counters Various time counters are running automatically on the background depending on which operating mode is active. Counters can be reset by manually setting the value to zero. Available parameters Operation time BACnet object R/RW Note Power-up time of controller OphDev...

  • Page 135: Alarm Functions

    Application functionalities Alarm functions 5.21 Alarm functions 5.21.1 General The application uses 2 different alarm classes: ● An A-Alarm indicated an important and urgent situation. If an A-Alarm is triggered, the unit shuts down. An A-Alarm must be acknowledged and can only be reset after cause of alarm is eliminated.
  • Page 136 Application functionalities Alarm functions A-Alarms Locked acknowledge Reset Normal, Unlocked Normal, Acked Normal, UnAcked disturbance disturbance appears appears disturbance disturbance disturbance disappears appears disappears disturbance appears Alarm, Acked Alarm, UnAcked acknowledge disturbance appears acknowledge Alarm: 0 Alarm: 0 Locked: 0 Locked= 1 Unacknowledged: 0 Unacknowledged: 0...
  • Page 137 Application functionalities Alarm functions Available parameters Acknowledge and Reset BACnet object R/RW Note A-Alarm acknowledgement and reset AalmAck 1: Ready MVAL,137 2: Acknowledge 3: Reset Automatic return to 1 B-Alarm acknowledgement BalmAck 1: Ready MVAL,133 2: Acknowledge Automatic return to 1 A-Alarms BACnet object R/RW...

  • Page 138: Alarm Codes

    Application functionalities Alarm functions 5.21.2 Alarm codes Error codes are divided in different groups for easier recognition of the alarm source. Those groups are: Error code Error source 1000…1999 Hardware related errors 2000…2999 Application related errors 3000…3999 Communication errors 9000…9999 3rd party related errors Code Alarm...
  • Page 139 Application functionalities Alarm functions Code Alarm Name/Description Source Plant BACnet object / Comment Influence of alarm Class lock 1033 Extract air pressure, System Run PEx, Fallback to supply air control, linear sensor fault active only if VntCtl12 selected fan speed if all sensors fail 1034 Differential pressure supply System Run...

  • Page 140: Error Presentation In Cloud

    Application functionalities Alarm functions 5.21.3 Error presentation in Cloud All Errors are also reported to the Cloud. Active alarms can trigger messages / reports via the Cloud (f.e. messages via e-mail). The Cloud uses the following alarm classes: ● Class 1 = A-Alarm ●...

  • Page 141: Periodical Maintenance Function

    Application functionalities Periodical maintenance function 5.22 Periodical maintenance function Certain maintenance functions of the ventilation unit must be performed at regular intervals, e.g. fire protection test or valve/pump kick function. For some functions, the ventilation unit must always be stopped to complete the entire process. Others can be made during operation, e.g.

  • Page 142: Analysis Functions

    Application functionalities Analysis functions 5.23 Analysis functions The application includes some analysis points. A test can be done by activating the item to test and then reading the result. The result is a 5-digit coded number. These following items are available for HVAC components: Item Diagnosis Result...
  • Page 143 Application functionalities Analysis functions Testing and debugging BA-object R/RW Note Select diagnostics for HVAC DiagHvacCpSel 1...7, See above component PINTVAl,131 Diagnostic value for HVAC DiagHvacCpVal Coded value, 00001 ... 32767, see components above AVAL,239 These following items are available for overall plant functions: Item Diagnosis Result...
  • Page 144 Application functionalities Analysis functions Testing and debugging BA-object R/RW Note Select diagnostics for plant DiagPltFnctSel 1...7, see above functions PINTVAl,67 Diagnostic value for plant functions DiagPltFnctVal Coded value, see above AVAL,29 144 | 170 A6V10733786_en_c...

  • Page 145: Engineering Of Communicative Devices

    Engineering of communicative devices PL-Link 6 Engineering of communicative devices Only one type of each device as described below can connect to S300 controllers. 6.1 PL-Link General rules ● Via PL-link 1 room operating unit POS8.4420 (T) or 1 POS8.4440 (T, rH) can be connected to the controller unit.

  • Page 146: Modbus Components

    Engineering of communicative devices Modbus components 6.2 Modbus components General rule Devices that can be connected to Modbus master Interface Device Description Address Note POS9.1515 IO extension QBM97 (1) Air pressure sensor # 1 DIP switch setting required QBM97 (2) Air pressure sensor # 2 DIP switch setting required FanSu...

  • Page 147: I/O Extension Module Pos9

    Engineering of communicative devices Modbus components 6.2.1 I/O extension module POS9.. Slave address: 41 Note The slave address is already set in the extension module. It cannot be changed. BA-object / device register assignment Actual I/O values BACnet object Note Register Function code Address...

  • Page 148: Air Pressure Sensor #1 Qbm97

    Engineering of communicative devices Modbus components 6.2.2 Air pressure sensor #1 QBM97.. Slave address: 40 (factory default) Notes ● The slave address must be set with dip switches. ● The first QBM97 must have slave address 40. ● Verify the DIP settings on the QBM97 as per the description on the QBM97 cover.

  • Page 149: Air Pressure Sensor #2 Qbm97

    Engineering of communicative devices Modbus components 6.2.3 Air pressure sensor #2 QBM97.. Slave address: 42 Notes ● The slave address must be set with dip switches. ● The first QBM97 must have slave address 40. ● Verify the DIP settings on the QBM97 as per the description on the QBM97 cover.

  • Page 150: Ebm-Papst Supply Air Fan

    Engineering of communicative devices Modbus components 6.2.4 Ebm-papst supply air fan Slave address: 1 Notes ● The fan configuration must be set with ebm-papst tool "EC Control" ● The configuration depends on the specific use case ● The following settings are required or recommended Setting Parameter Value...
  • Page 151 Engineering of communicative devices Modbus components Remark The above information is available for all ebm-papst Modbus fans with interface version >= 5.0 (2012). Depending on the type of fan, additional information is available. The application does not read this additional information, as reading causes malfunction on some types of fans.

  • Page 152: Ebm-Papst Exhaust Air Fan

    Engineering of communicative devices Modbus components 6.2.5 Ebm-papst exhaust air fan Slave address: 2 Notes ● The fan configuration must be set with ebm-papst tool "EC Control" ● The configuration depends on the specific use case ● The following settings are required or recommended Setting Parameter Value...

  • Page 153: Zero Pressure Calibration

    Engineering of communicative devices Modbus components Remark: Above information is available for all ebm-papst Modbus fans with interface version >= 5.0. Error and warning codes are shown as decimal value, for example error code ‘17’. They must be converted into a bit string, for example ‘0000 0000 0001 0001’. According to EBM Papst documentation, this means FB (General fan fault) and PHA (Phase error).

  • Page 154: Modbus Slave

    Engineering of communicative devices Modbus slave 6.3 Modbus slave 6.3.1 Use cases for Modbus slave engineering The 'Modbus Slave BAcnet Adapter' allows to modify parameters during runtime and supports the following use cases: ● Read/write data items for operation and monitoring by a third party HMI. ●...
  • Page 155 Engineering of communicative devices Modbus slave Both BACnet objects have the following properties: Setting, long name Property #, short name Description Line termination 4698: LnTrmnt On board line termination can be switched on (TRUE) / off (FALSE). Inter-Char-Timeout-Scale 4773: IntFrmTime Maximum delay between characters within a Modbus frame Standard timeout depends on configured baud rate and is normally 1.5 x characters times.

  • Page 156: R/W Communication Functions (Supported Function Codes)

    Engineering of communicative devices Modbus slave 6.3.4 R/W communication functions (supported function codes) The controller supports the following function codes (FCs): Read Input Registers, FC=04 Request Function code 1 Byte 0x04 Starting Address 2 Bytes 0x0000 to 0xFFFF Quantity of Input Registers 2 Bytes 0x0001 to 0x007D Response...
  • Page 157 Engineering of communicative devices Modbus slave Write Single Register, FC=06 Request 0x06 Function code 1 Byte Register Address 2 Bytes 0x0000 to 0xFFFF Register Value 2 Bytes 0x0000 to 0xFFFF Response 0x06 Function code 1 Byte Register Address 2 Bytes 0x0000 to 0xFFFF Register value 2 Bytes...
  • Page 158 Engineering of communicative devices Modbus slave More information The write request contains: ● Address of the Modbus slave ● Function code (FC) ● Start Address ● Depending on FC: additional control information to define the amount of data to be written (NO. of elements, ByteCount).

  • Page 159: Encoding Of Data Types

    Engineering of communicative devices Modbus slave 6.3.5 Encoding of data types Data is provided as Big Endian without swapping. Binary value encoding with one Register: Each binary BA present value will occupy 1 register Data type Byte order Binary value 00 aa, with aa = 0x00 or 0x01 Multistate value encoding with one Register: Each multistate BA present value will occupy 1 register...
  • Page 160 Engineering of communicative devices Modbus slave Encoding of text string with multiple Registers ● BA-Properties representing text information are encoded as UTF8 text string. ● Pair wise mapping of two bytes of the text string to one MODBUS Register. ● The first byte of the text string is mapped to the MSB of the 1st MODBUS Register (with the lowest Register address).

  • Page 161: Mapping Application Parameters To Modbus Registers

    Engineering of communicative devices Modbus slave 6.3.6 Mapping application parameters to Modbus registers Applications parameters support either extended or basic read/write mechanism. Extended read/write The following extended mapping examples illustrate: ● BA analog output object represented on Modbus by 4 holding registers ●...
  • Page 162 Engineering of communicative devices Modbus slave For analog output / value objects, MODBUS Master is expected to send one of the following MODBUS write requests, all three options are accepted: ● WriteMultipleReg.req (FC=16, StartAddr, QuantityOfReg=4, ByteCount=8, data=(2 Registers with 32bit real value; 1 Register with Cmd and Priority field; 1 Register with void value)) ●...
  • Page 163 Engineering of communicative devices Modbus slave Status flags: ● Read only bitset with BACnet encoding of status flags 'In-Alarm', 'Fault', 'Overridden' and 'Out-of-Service' in case of Modbus read response. ● Void field (0;0;0;0) in case of Modbus write request to be ignored by the Modbus Slave BA adapter.
  • Page 164 Engineering of communicative devices Modbus slave – Cmd = 3…7: Reserved Cmd values ● Priority: to write or relinquish the BA priority slot (for BA output objects and process value objects only) – Represents BA present priority (1…17) in case of Modbus read response –...
  • Page 165 Engineering of communicative devices Modbus slave Basic read/write The mapping mechanisms are the same as for extended mapping, but without the 2 registers to map BA-Status-Flags, Priority and Reliability. Example of a binary/multistate input object with basic read: Input register address Data item structure Present value Example of an analog/unsigned object with basic read:...

  • Page 166: Edit Schedule

    Engineering of communicative devices Modbus slave 6.3.7 Edit schedule A BA-weekly schedule has 7 daily schedules (corresponding to Monday – Sunday). Each daily schedule includes a list of [Time, Value] in pairs. The list describes the sequence of scheduled actions for a given day of the week. The data structure of each [Time, Value] pair is encoded in 2 MODBUS holding registers with the following structure: Register...
  • Page 167 Engineering of communicative devices Modbus slave ● The last valid entry (by time, ascending) with a valid schedule entry (i.e. valid time info) defines the value to the end of the day (23:59:59.99). ● Additional void entries (if any) with NULLVal=F, Hour = 0x7F and Minutes = 0xFF are applicable until the 16th and last entry at the end of the list.

  • Page 168: Device Information

    Engineering of communicative devices Modbus slave 6.3.8 Device information The device information occupies a total 1024 registers, starting with holding registers 4x9000. 4x9000~4x9767: Are reserved for basic device information such as Local Date, Local Time, Device ID, Language selection, etc. Register Read/ Address Write 9001 System-Status...

  • Page 169: Delivery Of The Application Parameter List

    Modbus slave 6.3.9 Delivery of the application parameter list The application parameter list is accessible via the delivery package on SIOS (Siemens Industry Online Support) at: https://support.industry.siemens.com/cs/us/ en/view/109776501. Note: the list is part of the complete package and therefore always compatible.
  • Page 170 Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug +41 58 724 2424 www.siemens.com/buildingtechnologies © Siemens Switzerland Ltd, 2020 Technical specifications and availability subject to change without notice. A6V10733786_en_c...

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