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Siemens BACnet ATEC
Owner's Manual
Siemens Industry, Inc.
125-5050, Rev. AA
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Technical specifications and availability subject to change without notice. © 2010 Copyright Siemens Industry, Inc. We reserve all rights in this document and in the subject thereof. By acceptance of the document the recipient acknowledges these rights and undertakes not to publish the document nor the subject thereof in full or in part, nor to make them available to any third party without our prior express written authorization, nor to use it for any purpose other than for which it w
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Copyright Notice Copyright Notice Notice Document information is subject to change without notice by Siemens Industry, Inc. Companies, names, and various data used in examples are fictitious unless otherwise noted. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of Siemens Industry, Inc. Warning This equipment generates, uses, and can radiate radio frequency energy.
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Copyright Notice radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Conn
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Table of contents Copyright Notice ....................................................................................... 3 How To Use This Manual .......................................................................... 7 Chapter 1 – Product Overview ................................................................. 9 Hardware Inputs ...................................................................................................... 10 Hardware Outputs .............................
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Using the Controller as a Point Extension Device .............................................. 22 Chapter 3 – Point Database ................................................................... 24 Chaper 4 – Troubleshooting .................................................................. 30 Basic Service Information ........................................................................................ 30 Preventive Maintenance ...........................................................
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How To Use This Manual How To Use This Manual This manual is written for the owner and user of the Siemens Industry BACnet VAV Actuator. It is designed to help you become familiar with the Siemens BACnet VAV Actuator and its applications. This section covers manual organization, manual conventions, symbols used in the manual, and other information that will help you use this manual. Manual Organization This manual contains the following chapters: Chapter 1, Hardware, describes the ha
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How To Use This Manual Convention Examples dialog box. Error and system messages are displayed in The message Report Definition Courier New font. successfully renamed displays in the status bar. New terms appearing for the first time are The PXC Modular continuously executes a italicized. user-defined set of instructions called the control program. This symbol signifies Notes. Notes provide additional information or helpful hints. Cross references to other information are For more i
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Chapter 1 – Product Overview Chapter 1 – Product Overview The BACnet Actuating Terminal Equipment Controller (ATEC) is the Siemens Industry FLN controller used in pressure independent Variable Air Volume applications (See the following figure.). It provides Direct Digital Control (DDC) for eight applications, and can operate independently as a stand-alone DDC room controller or networked with a field panel. The controller provides all input/output, system, and local communication connecti
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Chapter 1 – Product Overview Siemens BACnet ATEC Hardware Inputs Analog Air Velocity Sensor (AVS) Duct temperature sensor (optional) – Application 2861 Room temperature sensor (RTS) Room temperature setpoint dial (optional) Digital Night mode override (optional) Wall switch (optional) Hardware Outputs Analog None 10 Siemens Industry, Inc. BACnet ATEC Owner's Manaul 125-5050, Rev. AA 4/20/2010
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Chapter 1 – Product Overview Digital Application Damper Actuator All Fan 2865, 2866, 2867 First valve actuator (required) 2863 Stage 1 electric reheat; or, 2-position heating valve 2862 Stage 1 electric reheat 2864, 2866 Stage 2 electric reheat (optional) 2862, 2864, 2866 Stage 3 electric reheat (optional) 2862 Valve actuator 2865, 2867 Power Wiring The controller is powered by 24 Vac. Power wiring connects to the two screw terminals on the controller labeled “
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Chapter 1 – Product Overview Communication Wiring The controller connects to the field panel by means of a Floor Level Network (FLN) trunk. Communication wiring connects to the three screw terminals on the controller labeled “+” (positive), “-“(negative), and “S” (Shield). See the following figure. Controller LED Indicators The controller has six Light Emitting Diode (LED) indicators (see the figure Siemens BACnet ATEC). Controller LEDs. LED Type Label LED Indication (if prese
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Chapter 1 – Product Overview Temperature Sensors Room Temperature Sensor The controller room temperature sensor connects to the controller by means of a cable terminated at both ends with a six-conductor RJ-11 plug-in connector. Duct Temperature Sensor An optional duct temperature sensor provides duct air temperature sensing inputs to the controller. For more information about temperature sensors, contact your local Siemens Industry representative. Related Equipment Autozero Module
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Chapter 2 – Applications Chapter 2 – Applications Basic Operation The BACnet ATEC provides Direct Digital Control (DDC) for Variable Air Volume (VAV) terminal box applications. Temperature control varies with the application. If present, heating can be provided by hot water, up to three stages of electric reheat, or optional baseboard radiation. Sequencing Logic (optional) This application has the additional capability to sequence the flow and mechanical heating when heated supply air i
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Chapter 2 – Applications Calibration Air Velocity Sensor Calibration of the controller's internal air velocity sensor is periodically required to maintain accurate air velocity readings. Calibration may be set to take place automatically or manually. Autozero Module (AZM) Used when damper cannot be closed and constant airflow is needed. For a controller used with an AZM, calibration occurs without closing the damper. Application 6520, 6521, 6522, 6523. For a controller used without
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Chapter 2 – Applications Modulate Damper During Heating Mode (optional) CAUTION If the damper is set to modulate in heating mode, make sure the controller is in the appropriate mode for the current supply air temperature. Applications that have a heating source (valve/electric) can be configured to modulate the flow setpoint in sequence with the heating source. Hot Water Reheat CAUTION Do not set HTG FLOW MIN to 0 cfm (0 lps). A minimum airflow should be provided across the
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Chapter 2 – Applications 3. “Safeties by Others”: This note implies that the associated equipment has safety features installed, for example adding mechanical stops to the dampers. Application 2860 VAV Cooling Only In Application 2860, the controller modulates the supply air damper of the terminal box for cooling. In order for it to work properly, the central air-handling unit must provide cool supply air. See the following figure. Application 2861 VAV Cooling or Heating In Applicat
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Chapter 2 – Applications Baseboard Radiation Baseboard radiation can be a two-position valve or electrical resistance heating. If the controller is in cooling mode, the heating valve is closed. When in heating mode, the controller will operate the heating valve to maintain the heating setpoint. Electric Heat Interlock CAUTION Do not set EHEAT FLOW (the defined minimum) to less than 5%; otherwise, the electric heat interlock will be disabled. The electric heat stages will be dis
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Chapter 2 – Applications Application 2864 VAV Series Fan Powered with Electric Reheat In Application 2864, the controller modulates the supply air damper of the terminal box for cooling and controls stages of electric reheat for heating. When in heating, the terminal box either maintains minimum airflow or modulates the supply air damper. Application 2864 has a series fan for air circulation. In order for the terminal box to work properly, the central air-handling unit must provide suppl
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Chapter 2 – Applications [insert TEC2564CD] Application 2865 VAV Series Fan Powered with Hot Water Reheat In Application 2865, the controller modulates the supply air damper of the terminal box for cooling and modulates a hot water valve for heating. When in heating, the terminal box either maintains minimum airflow or modulates the supply air damper. Application 2865 has a series fan for air circulation. In order for the terminal box to work properly, the central air-handling unit must p
