Building Automation Knowledge Base

Issue SmartSensor Display blank with i2/B3-920s controllers Environment SmartSensor, 10K OHM (Type 3) Thermistor for Andover Continuum, LCD, 4-button (on/off, up/down, Celsius/Fahrenheit), blank cover (no logo) with i2/B3-920s controllers Smart Sensor Part number - TTS-SD-LCD-1 Smart Sensor, Lcd Display, 10K OHM (Type 3) Thermistor For Continuum TTS-SD-LCD-1 Infinity Smart Sensor 6-Button Keypad TTS-SD-LCD-4-2 Infinity Smart Sensor 4-Button Keypad Accurate, reliable 10K Type III Thermistor • LCD display • Programmable Keypad • Built-In service port to be used with the RoamIO-2 Service Tool • Powered directly from an i2 or b3 Field Controller Cause Connect new version SmartSensor to i2/b3-920 and write PE Program to display any character. This will render a blank SmartSensor display. Resolution New controller revision of software is expected to correct the SmartSensor with LCD display . i1 controller are still awaiting a change to the smart sensors (21 July 2014) Update Sept 2015 Firmware versions 4.500076 (b3920) and 3.300009(i2920) include this fix. Smart Sensor also modified for use with i1

Issue SEZ7000 Commercial zoning systems Environment Need for commercial application with zone controlling Cause What does the SEZ7000 series unit provide? What would be a comparable replacement for an obsolete Trend IQ222 Resolution The SEZ commercial zoning system has been specifically designed to bring a simple scalable solution to mid-market commercial applications without the cost associated with a typical DDC zoning system. Models include roof top and heat pump units controlling analogue heat, CO2 levels, and indoor air quality. Zoning controllers that provide floating and analogue damper control are also available. A single central controller unit can support up to 64 individual zone controllers. All zoning system controllers can be ordered with an on-board passive infrared (PIR) occupancy sensor cover that allows for advanced occupancy strategies, enabling greater energy savings to zones during scheduled events when no occupants are present.

Issue TC300 Series & accuracy Environment BMS Site Cause TC300 Series & accuracy Resolution The TC300Series-HotelApplication Stand-alone Digital FanCoil Thermostat specifications are as follows: There are two sensors possible for the unit. An embedded sensor is NTC100K, and for the external sensor as (below picture) it is NTC10K (3950). This chart defines the NTC Sensor accuracy (not the Control Accuracy which is in the specifications above):   The RS-03 10k NTC Remote Sensor-3m (Meters). Sites that want to extend further than the 3m, should know that the maximum length is 20m, we don't suggest more, but doesn't mean >20m have issues. The problem depends on the Electromagnetic Interference (EMI), Compatibility (EMC) in the field. Every site is different, and it is suggested to try in the field and see if it works fine. (When a remote sensor is connected (terminals S1 & S2) this remote sensor is automatically used. The internal sensor is ignored.) Note: TC300 thermostat supports Modbus RTU only. If you require LON, consider the SE7000 series controller. TC300 series replaces the DEGA 006905432 which is obsolete as of March 2004.  To control multiple fan coils with one ST300, a connection called the ST-2 is required. This expands the control up to 4 fan coils simultaneously but is not recommended since it may lead to uncomfortable temperatures in building area. For more info, visit The Exchange with search keywords TC300. The TC300 is only listed in the EMEA and AsiaPAC market. They are not UL approved.  

Issue Dimensions for the back plate (part # ENCL-300-BKP) used with the ENCL-300-TUB. Environment General Hardware Cause Dimensions not listed in iPortal Resolution Length = 28"     Width = 22.5"     Depth (thickness) = 0.5"

Issue Insufficient information for the STR602 terminal detail / assignment Environment Sensor Cause The installation instructions does not give insufficient information regarding the connections of a STR602 sensor. Resolution The STR602 combines the RPW4425 and DRT3453 into one temperature and setpoint unit. The STR602 is a 3 wire device using a common 0V between the setpoint adjust potentiometer and the temperature sensing negative co-efficient thermistor. The terminations are: STR602 term 22 (Setpoint) STR602 term 23 (Temp 'C) STR602 term 24 (0Vcom) - this is the common of both the temperature sensor and the setpoint potentiometer. Setpoint Resistance (for BAS/Sigma use Lookup table 1, for SmartStruxure use the Satchwell thermistor ) Sensor Resistance  (for BAS/Sigma use Lookup table 1, for SmartStruxure use the Satchwell thermistor )

Issue How do the controller settings affect the Occupation Sequence in respect of temperature control. Environment Stand alone. Part of a system. Cause Customer is uncertain of how this process works, the rooms are cold. Resolution There are a number of settings that will affect this sequence, the screen shot below shows the sequence and the settings used.  

Issue How to reset a CSC 5 series controller Environment CSC5352 CSC5252 Cause The CSC controller has become non operational and has frozen. How to reset a CSC 5 series controller? Resolution This procedure will clear any settings and return values to defaults. Switch OFF the power. Press and hold down the ENTER key, turn the power ON. The controller will display "reset" followed by the firmware no. The controller will now display "dflts". Release the ENTER key. The controller will display "reset" again, followed by the firmware no. The controller will now go into Review mode. Re-enter the site parameters.

Issue Types of TAC Erie Pop Top valves and actuators available from Schneider Electric in the UK  Product Line Field Devices Environment Pop Top Valves Pop Top Actuators Cause Actuator Part no's available in the UK Valve Part No's and connection types available in the UK ZY valve and actuator replacement Resolution   Actuators AH13U230 - High Close Off - Spring Closed 230Vac Actuator c/w 36" Lead AH13U23A - High Close Off - Spring Closed - 230Vac Actuator c/w 36" Lead + Aux Switch AG13A230 - Spring Closed - 24Vac Actuator c/w 36" Lead AG13A23A - Spring Closed - 24Vac Actuator c/w 36" Lead + Aux Switch AG13U230 - Spring Closed - 230Vac Actuator c/w 36" Lead AG13U23A - Spring Closed - 230Vac Actuator c/w 36" Lead + Aux Switch AG23U230 - Spring Open - 230Vac c/w 36" Lead AG23U23A - Spring Open - 230Vac c/w 36" Lead + Aux Switch AG23A230 - Spring Open - 24Vac c/w 36" Lead AG23A23A - Spring Open - 24Vac c/w 36" Lead + Aux Switch Valves (Note:NPT is American connection) VT2222 - 2way - 1/2" NPT 2.5Cv VT2223 - 2way - 1/2" NPT 3.5Cv VT2231 - 2way - 1/2" BSP 1.0Cv VT2232 - 2way - 1/2" BSP 2.5Cv VT2233 - 2way - 1/2" BSP 3.5Cv VT2325 - 2way - 3/4" NPT 5.0Cv VT2327 - 2way - 3/4" NPT 7.0Cv VT2332 - 2way - 3/4" BSP 2.5Cv VT2333 - 2way - 3/4" BSP 3.5Cv VT2335 - 2way - 3/4" BSP 5.0Cv VT2337 - 2way - 3/4" BSP 7.0Cv VT2437 - 2way - 1" BSP 8.0Cv VT3231 - 3way - 1/2" BSP 1.5Cv VT3232 - 3way - 1/2" BSP 3.0Cv VT3233 - 3way - 1/2" BSP 4.0Cv VT3332 - 3way - 3/4" BSP 3.0Cv VT3333 - 3way - 3/4" BSP 4.0Cv VT3335 - 3way - 3/4" BSP 5.0Cv VT3337 - 3way - 3/4" BSP 7.0Cv VT3437 - 3way - 1" BSP 8.0Cv Erie™ PopTop™ Series Valve Bodies and Actuators - Installation Instructions.pdf for the VT and VS valve, AG and AH actuator. Note: Only those listed above are available in the UK.

Issue How to reconfigure the IP address of a L-IP if not knowing its IP address? Environment LNS Turbo Lonmaker turbo Lonworks Network Interfaces Loytec L-IP Cause In order to use a L-IP, its IP address need to be known for configuration, otherwise this L-IP cannot functioning at all. Resolution Please follow the steps below to retrieve a L-IP’s IP address. 1. At first prepare a RS232 serial cable of which two sides are 9-pin female connector, or one side is 9-pin female connector and another side is 9-pin male connector. Then one side of the RS232 cable connects to the L-IP’s Serial port (See the red ring of the Figure 1) and another side connects to the PC Serial port (if PC is no Serial Port, the MOXA RS232 USB-to-Serial Adaptor can also be used).                                                         Figure 1：L-IP and PC Connection   2. Use a PC Hyperterminal with the communication settings set to 38,400 bps / 8 data bits / no parity / 1 stop bit / no handshake. On the L-IP use a serial cable (1:1 male-female or female-female cable) to connect COM port (like comm1) on the PC to the Console on the L-IP. Power up the L-IP or press Return if the L-IP is already running. The following menu (See the Figure 2) should appear on the HyperTerminal:                                                                                                                                    Figure 2:Main L-IP menu 3. Select 5 and press Enter, then the following menu (See the Figure 3) would appear on the HyperTerminal. The current IP Address, IP Netmask and IP Gateway of L-IP would be displayed in this menu.   Figure 3: IP Configuration Menu 4. If modifying the IP address, select 2 and press Enter, type in the new IP address behind Enter new IP address and press Enter button (See the Figure 4). Figure 4: Enter new IP address 5. If modifying the IP Netmask, select 3 and press Enter, then type in the new IP Netmask. 6. If modifying the IP Gateway, select 4 and press Enter, then type in the new IP Gateway. 7. After finishing all modifications, select X and press Enter, then save your modifications and return to the main L-IP menu. Please refer to the L-IP user manual for more detailed information.

Issue MN-Sx, MN-SxHT sensors calibration Environment I/A Series MicroNet Sensors (MN-Sxxx series) Cause Sensor readings inaccurate Resolution 1. Calibration in WorkPlace Tech application program Calibrate the temperature and / or humidity offset in the Hardware Wizard. Enter a positive or negative offset value. For examples, -0.5 or 0.5. The WorkPlace Tech application has to be compiled and downloaded to the controller for the offset to take effect.   2. Calibration via sensor's Diagnostic Mode (only available in MN-S3xx, MN-S4xx, MN-S4xx-FCS, and MN-S5xx) To enter the sensor's Diagnostic Mode, press the Up and Down buttons simultaneously until the sensor enters the Diagnostic Mode. Press the Override button (while still in Diagnostic Mode). This will lead you to a display where you can enter an offset for sensor calibration. Allow the sensor to return to the normal display (takes about 30 seconds).

Issue Current rating of the analogue outputs is not documented Product Line Field Devices Environment TC907-3A4LAB TC907-3A4LMAB TC907-3A4DLSAB TC907-3A4DLMSAB TC907-4FMSAB TC907-3A4DPSAB TC907-3A4DPMSAB TC907-3A4DPMSA-24B TC907-4FMSA TC907-3A4LMA TC907-3A4LA TC907-3A4DPSA TC907-3A4DPMSA-24 TC907-3A4DPMSA TC907-3A4DLSA TC907-3A4DLMSA Cause The maximum current information is required for connecting controlled devices. Resolution The analogue output has a maximum output of 40mA (minimum impedance 250Ω).

Issue Linking a M700 to a Spirax Sarco valve Environment Spirax Sarco Linkage KE KL Forta Cause Is a linkage available? Resolution Information on the forta linkages available are shown in the Valves and Actuator Catalogue, the following linkages are available. The linkage required to join the M700 to a KE, flanged DN15 valve is shown below is the 880-0129-000.

Issue Are DDC Controllers Leadership in Energy and Environmental Design Certified? Environment Site wanting Green Building Council Certification Cause Are DDC Controllers Leadership in Energy and Environmental Design Certified? Resolution The USGBC does not certify particular devices or controls systems such as I/NET, Continuum, or Xentas. LEED focuses on the design of the building and not on its actual energy consumption, and therefore it has suggested that LEED buildings should be tracked to discover whether the potential energy savings from the design are being used in practice. Five basic categories make up the design points system. Totaled together, these points determine your certification level. The level of certification depends upon the total number of points. As you can see, energy and atmosphere along with indoor environmental quality factors make up half of the available basic points. Five categories for accumulating points 1. Sustainable sites.... 26 Points 2. Water efficiency ....14 Points 3. Energy and atmosphere ....35 Points 4. Materials and resources.... 10 Points 5. Indoor environmental quality.... 15 Points 6. Innovation and Operations.... 6 Points 7. Regional Priority.... 4 Points Subtotal: 100 Points LEED 2009 for Existing Buildings: Operations & Maintenance 100 base points; 6 possible Innovation in Operations and 4 Regional Priority points Certified 40–49 points Silver 50–59 points Gold 60–79 points Platinum 80 points and above The U.S. Green Building Council is a national, non-profit organization that works to “promote the design and construction of buildings that are environmentally responsible, profitable and healthy places to live and work” (USGBC Mission Statement). The USGBC created the Leadership in Energy & Environmental Design® (LEED) Green Building Rating System. LEED was fashioned to provide a standard of measurement for defining a “green” building. It takes a whole building approach that encourages and guides a collaborative, integrated design and construction process. The program evaluates and recognizes performance of your buildings in accepted green design categories—Energy & Atmosphere, Water Efficiency, Materials & Resources, Indoor Environmental Quality and Sustainable Sites. Buildings are given a certification rating based on the number of points they receive in their evaluation. The four levels of LEED certification include: Certified Level, Silver Level, Gold Level, and Platinum Level. By becoming certified, building owners are given third-party validation of their contribution environment; qualify for various state and local government incentives; contribute to the growing knowledge base; receive a LEED certification plaque and official certificate; and receive marketing exposure through the USGBC website, case studies, and media  

Issue Telnet does not come enabled on Windows 7 PCs Product Line Andover Continuum, EcoStruxure Building Operation, Field Devices, Other, Pelco, Satchwell MicroNet, Satchwell Sigma, TAC IA Series, TAC INET, TAC Vista Environment Windows 7 OS Cause This feature does not come enabled in Windows 7. Resolution Click on the Start Icon and type Programs in the Search Window Click on Programs and Features Click on Turn Windows features on or off When the window becomes populated, check the box for Telnet Client   Click on Ok to apply change, exit Programs and Features window Type Telnet at the prompt and start your session

Issue Cannot connect MD20B-230 actuator to MBX4451 valve, using a 914-1071-000 linkage. Product Line Field Devices Environment MD Actuator MB valve MBX valve Linkage Cause The existing documentation is very unclear and shows the wrong bracket. Resolution The issue arises initially in that a different bracket is shown in the current documentation. The second issue is that there is a circlip on the back of the actuator which must be positioned before fitting the bracket. Below is a picture showing the correctly circlip and bracket. Please take note of the circlip position. Revised documentation will be available in due course.

Issue Access Environment CMC 1803 Access Password Pin Number Cause Access required Resolution

Issue If there is an online selection tool for all the HVAC sensors (room temperature sensors, duct pressure sensors, etc.) Environment All Schneider Electric Buildings product lines Cause Since Schneider Electric manufactures a huge amount of sensors for different product lines. Sometimes it takes a bit of time to search for the right sensor. Therefore, Schneider Electric developed an online selection tool to help customer pick the right sensors. Resolution Click here to go direct to the online HVAC sensors selection tool. Select the desired features of the sensor. All sensors match the requirements will be displayed on the right. Datasheets can be accessed by clicking on the image or the part number. NOTE: the listed sensors may not be available in some region. Please contact the local sales or Support team to confirm the information.

Issue Card part numbers are built up using the manufacturer, technology, type and format. How is this defined? Environment All systems using access control cards and readers. Cause Clarification on the part numbering is required. Resolution The part numbers for all cards and readers are built up using the format below, also full details of the products and all available part numbers are defined in the Electronic Access Control (EAC) catalogue. Any cards or tags that have a part number that ends in 000 will be un-programmed i.e. 654 xxxx 000. Readers that have a part number that ends in 000 will operate with and pass through all formats with the corresponding technology. i.e. A HID ProxPoint reader part number 654 1301 000 will operate with all formats of prox cards and tags. Other technologies may require the reader format to match the card to operate correctly. i.e. A FlexPass reader 654 2306 400 is formatted with Continuum 37 bit format it will require matching cards like the ISO cards 654 2352 400 that also has the 37 bit format. When ordering cards: if it is a new site specify this on the order, you will then be sent cards with a card number 1 through the number of cards ordered, and the next available site code (also called facility code). However if you are ordering cards for an existing site you will need to specify the range of card numbers required and the site (or facility) code required.

Issue The MZ20A actuator stops controlling, and the Analogue Output remains at zero volts. Environment MZ20A MZ20A-R Actuators Surface Mount Cause If the controller power and battery switches are switched off, then when the power is switched back on, the Analogue Output remains at zero volts. Resolution To prevent is issue from occurring, it will be necessary to install a 2K2 ohm resistor between each channel and the common zero volt rail, as shown in the picture below.   Add the 2K2 Ohm resistors to the channels controlling the MZ20A actuators. These resistors do not need to be a close tolerance; a Carbon Film ¼ watt 5% is acceptable, (RS Stock No.135-881 or similar). Note – The MZ20A, are the only actuators that we are aware of that require this modification, therefore if the actuator is changed to another type, the resistor should be removed again.

Issue A controller with only 2 available outputs is being used to control a 3 stage device. Environment Three stage device control where lower stages must remain active. Cause Hardware or space limitations may prevent there from being enough outputs to control a three stage device. Resolution Two controller outputs in conjunction with a DPDT (dual pole, dual throw) relay can be configured to control a three stage device. This will allow you to activate stage 1, stages 1 and 2 or all three stages by activating either one or both of the controller outputs. An example of when this might be used is to control three stages of heat or a three stage fan. A standard "ice cube" type relay can be used (IDEC RH2B or similar) and should be wired as shown in the diagram below.   The controller should be programmed to activate only output 1 for stage 1, activate only output 2 for stages 1 and 2 and finally to activate both outputs for stages 1, 2 and 3. Note that certain application specific controllers may not allow the outputs to be configured in the way described above and thus cannot take advantage of this setup.