Building Automation Knowledge Base

Issue Since the V394 is obsolete, a proper replacement is requested. Environment V394: 7319421000 7319425000 7319429000 7319433000 7319437000 7319441000 7319445000 7319449000 V341: 7314121000 7314125000 7314129000 7314133000 7314137000 7314141000 7314145000 7314149000 V311T: 7311717000 7311721000 7311725000 7311729000 7311733000 7311737000  7311741000 7311745000 Cause Replacing obsolete valve. Resolution Depending on application, the V311T or V341 are the closest available valves for replacement. The V341 is of Bronze material, while the V311T is Cast Iron. Depending on the valve size in question, the closest fit is the V311T, while the V341 will require pipe work. See each products data sheet for more information and details.

Issue In some applications, a combined temperature and CO2 sensor is requested Environment SCR series sensors SCR110 SCR210 SCR510 SCR610 SCR810 Cause Application requirements Resolution The SCR series sensors are able to measure the levels of CO2, RH (if equipped) and temperature of air inside a room. See product documentation for more information and details.

Issue Needs a 230V actuator to replace existing actuator on customer installation Environment MV15B VG311F Venta Cause Since most actuators are 24V, the 230V option is not too common Resolution The 230V version of MV15B, part no 880-0460-000 is suitable as actuator for the VG311F.

Issue The VZ21 is obsolete and no longer available. Environment VZ21 VZ22 Cause Obsolete product needs to be replaced. Resolution The VZ21 series valve is replaced by VZ22.

Issue Is the MZ20B suitable for use in an On/Off application? Environment MZ20B 230V: 8455003000 MZ20B 24V: 8455001000 Cause Depending on control signal type and construction, some actuators are better suited for On/Off applications. Resolution Yes, the MZ20B can be used in an On/Off application. For connection details and more, please see the MZ20B data sheet. 

Issue The STC series transmitter is delivered with a pipe clamp designed for maximum 100mm (4") pipe diameter. Is there any other solution if pipe diameter is larger than 100mm/4"? Environment STC100 STC101 STC200 STC201 STC110 STC120 STC300 STC600 Cause Included pipe clamp does not fit larger pipe size applications. Resolution If the application requires the transmitter to fit pipe with bigger outer diameter than 100mm/4", the included pipe clamp can be replaced with a bigger clamp purchased locally at the hardware store or similar.

Warning Hazard of Electric Shock: Remove all power from all devices before removing any covers or doors of the system. Disconnect power at the device and at the power source.  Issue The C20 series cameras have the BNC and neutral ground for 24VAC tied to the same ground plane. This can cause a power supply short if the ground and hot are connected out of phase at the power supply. This can also cause ground loop bars in the video if connected to a supply that is not on the same ground plane as the camera. This also causes problems with some third party UTP brands connections. Product Line Field Devices, Pelco Environment C20 cameras connected  to common power supply and/or ground planes that are different. Cause The 24 VAC on the C20 cameras are connected to a common ground plane and the BNC connection is grounded to the same ground plane Resolution When installing the C20 cameras use single isolated transformers for each camera, or make sure the wiring is tied with the same phase. This is done by making sure the same wire leg of each camera is connected to the same wire side of the transformer on the power supply. Also when connecting to the power supply use a meter to test for voltage potential differences. Check that the cameras will work with the third party UTP brand you are using

Issue Do we have any fast (10 sec) damper actuator in our portfolio? Environment Damper actuator Cause In some application, a fast actuator is requested. Resolution Unfortunately, we do not cover this type of applications. An actuator of this type will have to be sourced locally. Belimo has a line of very fast-running actuators: http://www.belimo.eu/CH/EN/Product/Actuators/SuperFast.cfm?TopCatNr=0206

Issue If not considering the design of the sensor housing, can a duct sensor function also in a room application? Environment Duct style sensors Cause A specific application is requesting this type of setup Resolution In general it is possible to use these sensors also for room applications. Maybe the time constant will be a little bit higher because of lower velocity which in room applications usually is irrelevant. For the SHD it might be that the sinter filter can absorb some radiant heat (if there is any).

Issue Obsolete product needs replacement. Environment TAC258R 2581010000 Xenta 102-AX STR100 Xenta 121-FC STR250 Cause The TAC258R is obsolete and needs to be replaced. Resolution   We do not offer any direct replacement. Depending on application, you might consider using the Xenta 121FC with a STR100 series room unit. However, if the application is VAV, the Xenta 102-AX and a STR250 wall module might cover your needs.

Issue Unable to locate requested documentation. Environment   T312-121 Cause Product was available in price list, but no related documentation was to be found. Resolution Unfortunately this product is terminated, and was still listed in the price list. No documentation has ever been available for download. Product is now removed from future revisions of price list.

Issue Since the SPD900 is obsolete, it needs a replacement product. Environment Differential Air Pressure Switches 004701040  SPD900-600Pa  004701020  SPD900-200Pa 004701090  SPD910-2000Pa  004701080  SPD910-1000Pa  004701070  SPD910-500Pa  004701060  SPD910-300Pa  Cause Obsolete part needs replacement. Resolution The SPD900 series was replaced by SPD910 series in 2009. Please see SPD910 data sheet for more information and details.

Issue In which medias can a SPP110 be mounted? Environment SPP110: 004702020 004702040 004702060 004702080 004702100 004702120 004702140 Cause Depending on media, some sensors may not be suitable. Resolution SPP110 can be used with any media suitable with stainless steel.

Issue There is a position feedback signal feature on the Forta series actuators, how do I connect to it? Environment Forta series actuator Cause How to correctly connect the wiring for the position feedback signal. Resolution Connect between block "Y" and "MX" to get the feedback signal. It's a 0-100%, 2-10V, where 100% always refers to full open position.

Issue Is it possible to configure the On/Off output as a PWM output? Environment Viconics SE7200 SE7200C5545W Cause In some applications its desirable that the output is configured as PWM. Resolution The main On-Off outputs cannot be set as PWM, they go up to 8 CPH. However, the BO5 output can be On/Off (4 CPH) or PWM (10sec. cycles).

Issue Which aux switch is the correct for the Forta actuators? Environment Forta Auxiliary switch S2 8800104000 Cause The correct aux switch for Forta Resolution The correct auxiliary switch to be used with the Forta series actuators is the S2. Part no 8800104000.

Issue Since the ZS106 is obsolete, a replacement is requested. Environment ZS106 - 007309220 STR106 - 004600500 Cause Replacement for obsolete product. Resolution The STR106 wall module, part no 004600500, is replacing the obsolete zone sensor ZS106.

Issue Replacement required for obsolete product. Environment SPD160 004700180 SPD360 004700360 Cause Replacement for obsolete product. Resolution SPD160 is replaced by SPD360. For more information ad details, please see the data sheet for each product.

Issue When retrofitting a site from brand x to Schneider Electric products, the controlling equipment my be designed differently between brands. Environment MD5 MD10 MD20 MD40 AF LF Damper actuator Cause Built in controller functionality. Resolution The MD/AF/LF series damper actuators does not have any built in controller functionality. All control signals must be provided from another source.

Issue What is the temperature reading range for the STP500? Environment All Continuum controllers STP500 range STX500 range STD500 range Cause Clarification on read range required. Resolution When connected to a Continuum controller the operating temperature range is: -30°F to +230°F, -34°C to +110°C For readings outside this range, an active sensor with a 4-20mA or 0-10V output should be used.