Fume Hood Controller 2-Position Constant Volume with Damper Start-up Procedures Building Technologies 140-1318 2015-11-04 Restricted CPS
Table of Contents Before You Begin ............................................................................................................... 5 Verifying Power .................................................................................................................... 6 Verifying Slave Mode Application Number .......................................................................... 7 Setting Controller Address ....................................................................................
Flashing Controller Firmware ............................................................................................. 19 4 Siemens Industry, Inc.
Before You Begin Verifying Power Before You Begin WARNING A fume hood is a safety device. Anyone attempting to start up a Fume Hood Controller and its related equipment should have completed Operations Training. Generic Controller I/O Layout. See Wiring Diagram for application specific details. At the job site, locate the major control system and the mechanical and electrical drawings.
Before You Begin Verifying Power CAUTION The FHC-OAVS has two terminal blocks with terminations numbered identically (terminations 1 through 16). DO NOT mix these up with each other. If the FHC-OAVS is not connected as shown, it is not resistant to electrical surges. It is also susceptible to interference from other equipment. CAUTION A separate power supply is required if a 4-20 mA sensor is used. Failure to follow wiring precautions will result in equipment damage. Verifying Power 1.
Before You Begin Verifying Slave Mode Application Number Verifying Slave Mode Application Number 1. Plug the cable into the micro USB port. NOTE: Drivers for the ODP II port must be loaded to your computer prior to being able to communicate with the ODP II. Drivers can be found on the Technical Support Website. 2. Verify that Application 2900 (Slave Mode) is running at the controller. Setting Controller Address 1. In WCIS, select View > Edit/View Reports. 2.
Before You Begin Setting Display Units The air velocity sensor calibration cycle begins within three minutes of an application start-up or initialization, depending on the controller’s address. Setting Display Units Set ENG UNITS to English or System International (SI) units (default is English units) depending upon which unit (fpm or m/sec) you want displayed at the Operator Display Panel.
Before You Begin Setting Airflow Sensing Input Setting Airflow Sensing Input The controller allows the exhaust volume to be measured in several different methods. Differential pressure on AVS-1 (default) Differential pressure signal on AI3 Linear flow signal on AI3 When not using the default method, refer to the Setting Airflow Input Type section. Setting Flow Coefficients CAUTION It is extremely important that the flow readings are accurate. Inaccurate flow readings will cause control problems.
Before You Begin Setting Blank Display NOTE: The air velocity sensor should be calibrated at least once every 24 hours. Make sure that the sensor has been calibrated before balancing takes place, as this will affect the balancer’s results. CAL SETUP Options. CAL SETUP Option Values Description 0 Calibration occurs ONLY when CAL AIR is set to YES. 1 Calibration occurs with an occupied to unoccupied mode changeover. 4 (factory default mode) Calibration occurs on the time interval set in CAL TIMER.
Before You Begin Setting High Flow Setpoint NOTE: If you set DISPLAY RES to zero, the Operator Display Panel will “freeze” at the exhaust volume setpoint EXH VOL STPT. Setting DISPLAY RES to a value other than zero allows the Operator Display Panel to update the displayed exhaust volume. Setting High Flow Setpoint Set EXH HI STPT to the desired air volume. Values are in CFM (LPS). The valid range of values will depend on the size of the exhaust duct.
Before You Begin Setting Hi and Low Alarm Limits Setting Hi and Low Alarm Limits Skip this step unless there is a special requirement on the job; the default will be used. 1. Change report to STARTUP. 2. Set HI ALM LMT and LOW ALM LMT. These limits are defined as a percentage of the controlled setpoint, meaning that the alarm limits will be closer as EXH STPT decreases. The default values are 150% and 70% respectively. These points may be adjusted to meet customer requirements.
Before You Begin Setting Damper Control Setting Damper Control Skip this step if you are using high speed actuators from Siemens Industry, Inc. The application has the option of not inverting DO2 operation. An inverted RETC DO2 means that to hold a position, the RETC DO2 must remain on. Set INVERT DO2 by selecting one of the following: – YES to invert RETC DO2 (default). – NO for non-inverted operation. Checkout of Damper 1. Set DMPR CMD to 100.0. The damper moves to the fully opened position. 2.
Before You Begin (Optional) Calibrating the DP Transmitter without an Autozero Module Linear Flow Input Signal This section is used if the job has Vortex shedders or another linear device made by others. CAL SETUP does not function in this mode. 1. Set TRANS RANGE to = 0 (default value). TRANS RANGE must be 0 for the linear input function to work. 2. Enter the velocity range of the linear device into LINEAR FL RG. 3. Set FLOW COEF to 1. Proceed to Flow Accuracy Verification.
Before You Begin AVS FAILMODE AVS FAILMODE AVS FAILMODE is a point that describes how the Venturi Air Valve will respond if the Air Velocity Sensor (AVS1) fails. Set AVS FAILMODE to the desired value. AVS1 failure and AVS FAILMODE values. AVS FAILMODE OPEN (default) Exhaust fails Open HOLD Exhaust Holds current Position Setting AO2 Range 1. Set REPORT to AIRFLOW IN. 2. Do one of the following: 3.
Before You Begin Setting AO2 Voltage Minimum Setting AO2 Voltage Minimum This section can be skipped, if the FHC is connected to a room controller or field panel from Siemens Industry, Inc. This function allows the minimum voltage to be set to a value other than 1 (default). The minimum voltage is output when the flow is equal to 0 cfm. Set AO2 V MIN to the desired value. Start-up/Decommission Mode The Fume Hood Controller contains different modes controlled by STARTUP MODE (default is 3).
Before You Begin Loop Tuning Procedures Loop Time Commanding LOOP TIME controls the speed of the loop calculations. The value of LOOP TIME controls how often the loop calculations are performed. The default value is 0.1 seconds and can be increased to slow the response of the system. Steady State Performance Steady state performance is the ability of the loop to maintain its setpoint. Variation of the EXH VOL from setpoint (with the sash position fixed) can be a sign of poor loop tuning.
Before You Begin Loop Tuning Procedures 2. Take the average measured face velocity and face area to determine the volume of air exiting the hood. Use the calculation shown below: CFM = ((Average measured face velocity) x (Open area of the hood)) Start-up is now complete. Set STARTUP MODE to 0, to enable the FHCs full functionality. Calculating Average Face Velocity 18 Siemens Industry, Inc.
Before You Begin Flashing Controller Firmware Flashing Controller Firmware NOTE: When re-loading/flashing firmware, existing PPCL may no longer function correctly. FLT Procedure Use the Firmware Loading Tool (FLT) for this procedure. 1. Connect to the RTS port of the TEC. 2. Set Communications to 38400 baud. 3. Click the Identify button. 4. Browse to the folder where the new firmware is saved. 5. Double-click the firmware file and then click Load. WCIS Procedure 1. Connect to the RTS port of the TEC. 2.
Issued by Siemens Industry, Inc. Building Technologies Division 1000 Deerfield Pkwy Buffalo Grove IL 60089 Tel. +1 847-215-1000 Document ID 140-1318 Edition 2015-11-04 © Siemens Industry, Inc., 2015 Technical specifications and availability subject to change without notice.
