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Siemens OpenAir G B181.1E/3 Series Technical Basics

Vav modular controller/compact controller
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OpenAir
VAV compact controller G..B181.1E/3
VAV modular controller ASV181.1E/3
Technical Basics
CE1P3544en
2016-02-26
Infrastructure & Cities
Building Technologies

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  Summary of Contents for Siemens OpenAir G B181.1E/3 Series

  • Page 1 Infrastructure & Cities OpenAir VAV compact controller G..B181.1E/3 VAV modular controller ASV181.1E/3 Technical Basics CE1P3544en 2016-02-26 Building Technologies...
  • Page 2 International Headquarters Gubelstrasse 22 6301 Zug Switzerland Tel. +41 41-724 24 24 © Siemens Switzerland Ltd, 2011 Technical specifications and availability subject to change without notice. www.siemens.com/buildingtechnologies 2 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3...
  • Page 3: Table Of Contents

    Calculation formulas ................26 Configuration and maintenance tools ........... 27 5.3.1 PC software ACS941 and ACS931 ............27 5.3.2 Handheld tool AST10 ................27 3 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 4 Technical data ..................38 Parameters ..................40 Parameter description ................40 Device parameters (ACS931 / ACS941 / AST10) ......... 40 Environmental compatibility and disposal ........41 4 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 5: Introduction

    Before you start 1.2.1 Copyright This document may be duplicated and distributed only with the express permission of Siemens, and may be passed only to authorized persons or companies with the required technical knowledge. 1.2.2 Quality assurance These documents were prepared with great care.
  • Page 6: Objectives Of This Basic Documentation

    [8] ACS941 – PC-Software for Service (N5854) The VAV compact controllers with KNX / PL-Link capability GDB181.1E/KN and GLB181.1E/KN are covered in the Technical Basics P3547. 6 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies...
  • Page 7: Device

    Datasheet ACS941: N5854 Instructions: B5851 Datasheet AST11: N5852 For information regarding accessories and spare parts for VAV compact controllers, Accessories please refer to datasheet N4698. 7 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 8: Selection Guide For All Types

    ASV181.1E/3 with 3P actuator GEB131.1E (15 Nm) GBB131.1E (25 Nm) GIB131.1E (35 Nm) GLB181.1E/3 Actuator > 5 Nm 10 Nm GDB181.1E/3 5 Nm 8 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 9: Version Summary

    YC Features mode) Control perfor- SW model for mance optimized detection of (“con” mode) position optimized Measuring signal “U” slightly attenuated 9 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 10: Design And Device Parts

    Connection nozzle for measuring differential pressure in the VAV box Connection nozzle for measuring differential pressure in the VAV box ("+": Side with higher pressure) Beltline hook 10 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 11: Dimensions

    LED dark No operating voltage LED green Faultless operation LED flashes red Connection tubes for sensor interchanged LED red Differential pressure sensor fault 11 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 12: Internal Diagrams

    To ensure the functions at YC, only one cable may be connected at the time, either the cable for the air volume flow reference signal DC 0/2...10 V (setpoint) or the cable for the communication signal 12 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies...
  • Page 13: Measuring Principle

    Assume that a VAV box is designed for a nominal pressure of p = 120 Pa. Then, Calculation example has to be set to 1.58: 1.58 13 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 14: Application

    Interface converter AST11 5852 PC software for service ACS941 5854 limited functionality for VAV compact controller Series E download free of charge at www.siemens.com/openair 14 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 15: Application Examples

    N3 Room temp. controller DESIGO™ RXC31.1 control B1 DESIGO™-room unit, e.g. QAX32.1 CLA CP+ CP- U1 G0 U2 G0 Y1 Y2 Y1 Y2 15 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 16: Connection Diagrams

    Control loop without communication, e.g. with G..B181.1E/3 “con” mode and room Connection diagram 1 temperature controller RCU61... (G..B181.1E/3) Y1 YC G0 Y1 G Y2 16 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 17 DC 0...10 V DC 0...10 V Y2 Y1 YC Y2 Y1 3c: Modulating control between and fully open DC 0...10 V Y2 Y1 17 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 18 Legend to connection diagram 5 N2 G..B181.1E/3 – extract air – N3 Room temperature controller DESIGO™ RXC31.1 B1 DESIGO™ room unit, e.g. QAX32.1 18 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 19: Electrical And Mechanical Installation

    5 Strain relief strip ASV181.1E/3 Connection to AST10 1 AST10 4 ASV181.1E/3 2 G..B181.1E/3 5 Connection to AST10 3 G..B181.1E/KN 6 Strain relief strip 19 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 20: Electrical Installation / Cabling

    - Output signal current DC 1 mA (from U = DC 0…10 V). The DC voltage drop can be ignored for the following considerations. 20 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies...
  • Page 21 Power consumption in [VA] or [W]; refer to the VAV compact controllers’ type field DC current portion on G0 line in A I(DC) 21 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 22 Permissible single cable length for G and G0: 164 m with a cross-sectional area of 1.5 mm 274 m with a cross-sectional area of 2.5 mm 22 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies...
  • Page 23: Parameterization And Operating Modes

    Settings and user interaction The VAV compact controllers can be parameterized with configuration tools (cf. “equipment combinations”) Settings for setpoint Parameter Setting Description Siemens factory signal YC setting 0…10 V Setpoint for air volume 0…10 V (operating mode flow “con”) 2…10 V...
  • Page 24: Operating Modes

    Operating modes The following parameters have to be set or checked in operating mode “con”: Operating mode “con” Parameter Setting Description Siemens factory setting Type VAV or CAV mode Setpoint YC 0…10 V Air volume flow reference signal 0…10 V 2…10 V...
  • Page 25 3-position actuator, the operating mode parameter must be set to “3P”. Parameter setting In operating mode “3P”, the following parameters must be set or checked: Parameter Setting Description Siemens factory setting Type 3P mode 1…3.16 Characteristic value for nominal air...
  • Page 26: Calculation Formulas

    Actual value of setpoint and min. / max. limits Actual value as function of differential pressure Differential pressure as function of actual value 26 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 27: Configuration And Maintenance Tools

    PC. Instructions for use of this software can be found in datasheet N5854 ([8]). The software is available free of charge at www.siemens.com/openair. The PC software ACS941 allows to set or to display the parameters as listed in section 9.2.
  • Page 28: Setting Examples

    VAV compact controller 100 % 100 % Reference signal: = 35 % supply_air extract_air Result: = 35 % supply_air extract_air extract_ ai supply_ air 28 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 29 + 20 % = 55 % supply_air extract_air supply_air Result: = 35 %, V = 55 % supply_air extract_air extract_ ai supply_ air 29 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 30: Min/Max Control By The Vav Compact Controller

    80 % 20 % 80 % Reference signal: = 25 % supply_air extract_air Result: = 35 % supply_air extract_air extract_ ai supply_ air 30 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 31 = 35 %, V = 55 % supply_air supply_air Supply air controller Extract air controller extract_ ai supply_ air Reference signal Reference signal supply_air extract_air 31 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 32: Master/Slave Operating Mode

    VAV compact controller 20 % 80 % 100 % Reference signal: = 25 % master Result: = 35 % master slave master slave 32 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 33 80 % 20 % 120 % Reference signal: = 25 % master Result: = 35 %, V = 55 % master slave slave master 33 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 34: Commissioning

    VAV compact controllers must be disconnected for the period of time communication is active! For more detailed information, please refer also to AST10 Operating Instructions B5851 ([5]). 34 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 35: Safety And Emc Optimization

    Third-party regulations issued by general contractors or building operators Safety The electrical safety of building automation and control systems supplied by Siemens depends primarily on the use of extra low-voltage with safe isolation from mains voltage. SELV, PELV Depending on the type of extra low-voltage earthing, a distinction is to be made between SELV and PELV as per HD 384, “Electrical plants in buildings“:...
  • Page 36: Device-Specific Regulations

    Mechanical coupling of the devices is not permitted. Do not open the actuator! The device is maintenance-free. Only the manufacturer may carry out any repair Warning, work. maintenance 36 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 37: Notes On Emc Optimization

    In general, unshielded twisted pair cables for building services plant (including data lines) offer adequate EMC characteristics, plus the advantage that no provision is required for coupling to earth. 37 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies...
  • Page 38: Technical Data

    W x H x D 68 x 135 x 45 mm Suitable drive shafts Type of drive shaft Round 8...16 mm Round, with centering element 8...10 mm 38 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 39 ± 0.1 Pa / Year Max. permissible operating pressure 3000 Pa Max. permissible overload on one side 3000 Pa The documents can be downloaded from http://siemens.com/bt/download 39 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies...
  • Page 40: Parameters

    (in 500 m steps) Running time 30 … 150 s 150 s ACS931, ACS941 1.00 ... 3.16 1.00 ACS931 *in brackets: designation for AST10, if different 40 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en Building Technologies 2016-02-26...
  • Page 41: Environmental Compatibility And Disposal

    The Environmental Declarations on these products contain detailed information declaration about the materials and volumes used. If you need a copy, please contact your Siemens sales office. 41 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3...
  • Page 42 International Headquarters Gubelstrasse 22 6301 Zug Switzerland Tel. +41 41-724 24 24 © Siemens Switzerland Ltd, 2011 Technical specifications and availability subject to change without notice. www.siemens.com/buildingtechnologies 42 / 42 Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3...