Building Automation Knowledge Base

Issue Replacement an AF24-S Actuator? Environment AF24-S Damper Cause Customer requires a replacement actuator for a AF24-S. Resolution The AF24-S is a 24v power open, spring return damper actuator, it has a torque of 15 Newtons. To view the data sheet, please click HERE. The replacement actuator range is the MD10SR/MD20SR ranges. The MD10SR damper actuators have a torque of 10 Newtons (dampers up to 2m2) and are available in the models shown below. To view the full data sheet, please click HERE.   The MD20SR damper actuators have a torque of 20 Newtons (dampers up to 4m2) and are available in the models shown below. To view the full data sheet, please click HERE. In the specific case of the AF24-S the replacement would be the MD20SR-T or -TS if auxiliary switches are required.

Issue Which models of the SE7300 series room controllers can be used with the SC3000 series relay packs? Product Line EcoStruxure Building Expert, EcoStruxure Building Operation, Field Devices Environment SE7300 series Room Controllers Cause The SC3000 series relay packs allows existing line voltage wiring between the fan coil unit and temperature controller to be re-used. Only certain models of the SE7000 series room controllers can be used with the relay packs.  Resolution The SER7300 is used with the SC3000. Refer to F-27797 SER7300 and SC3000 Series datasheet. Refer to the F-27777 SC3000 Series datasheet to select the appropriate relay pack for your application.  SE7000 series Room Controllers documentation can be found on The Exchange Download Center.   

Issue Is there any way to get calibration certificates for the Kamstrup meters and auxiliary equipment associated to the meters? Environment Kamstrup Heat meters cool meters flow meters Cause To fulfill the requirements of some standards, calibration certificates on the equipment may be required.  Resolution All new meters are delivered with approval and initial verification according to the standard for heat meters EN1434, and the European Measuring Instrument Directive MID. This warrants that each meter is within the Class and MPE stated by the standard. Kamstrup can provide certified calibration results for individual meters upon request. Please order these certificates through your regular Orders channels, and please confirm the meters/sensors serial number by filling in the Order form that can be downloaded here. Temperature sensors, calculator and flow part has each their own certificate, and can be replaced individually if broken or damaged. Please make sure to state serial number for each part when requesting the certificate(s).  

Issue Replacing a 230 volt Satchwell mains actuator. Environment Satchwell MZxxx Valve Mains Actuator Cause Old Satchwell actuator is obsolete. Resolution The replacement mains actuator will be the MV15B-230 spec - 880-0460-000 for datasheet please click HERE. To fit the MV15B-230 actuator to a Satchwell MZxxx valve a L7SV linkage is required. spec 880-0126-000

Issue Replacement Environment Current replacement. Cause Obsoletion of device Resolution The is no direct replacement for the DRT 3801, DRT3851 Sensors with fan switches. The sensor and setpoint can be replaced using a New Part No. STR612/004604700 The fan switches would need to be replaced using a four position switch. Click here to view the DRT3801/DRT3851 data sheet.

Issue Replacement of obsolete actuator Environment Valve actuator replacement Cause Obsolete Valve actuator Resolution The current replacement for the AVUX 2-201 actuator is the AVUX 5-202 Click here to view the data sheet for the AVUX 2-202. Click here to view the data sheet for the AVUX 5-202. .

Issue End connection kits needs to be ordered separately, specified depending on application Environment VZ208E VZ308E VZ408E VZ208C VZ308C VZ408C Cause The end connection kits needs to be ordered separately.  Resolution 1 (one) kit / port  on valve is required, i.e. a VZ208 needs 2 kits, and VZ408 needs 4 kits. See data sheet for details. 

Issue The documentation only describes mounting on curved pipe. Environment STP100 STP101 STP120 STP200 STP201 STP300 STP501 STP600 Cause In some applications, mounting the sensor on a straight pipe is necessary Resolution A description drawing is available here. The installation should be beveled against flow direction and the diameter should not be bigger than half of the diameter of the pipe.

Issue Documentation for KLR-E AC Room Controllers / Thermostats Environment AC Room Controllers Thermostats Cause Documentation for KLR-E type thermostats. Resolution KLR-E Thermostats are manufactured by EBERLE (Invensys) and available from Schneider Electric in Europe. Click here to download KLR-E documentation in French Click here to download KLR-E documentation in English/German

Issue CZU1201 replacement Environment CZU1201 Cause The CZU1201 requires replacement, but the controller had a exposed setpoint adjust dial on its fascia, the replacement CZU4201 does not. Resolution Replace the CZU1201 with the CZU4201 and a STR612 setpoint adjust unit, Wire to terminals 9 and 10 on the controller, set the internal setpoint on the controller to 10'C. CZU1201 datasheet click here. CZU4201 datasheet click here. STR612 datasheet click here.

Issue The TAC 200 OTP is obsolete, and the available documentation may be hard to find. Environment TAC 200 OTP 2001005000 Cause Documentation for obsolete products may be hard to find. Resolution All available documentation is available here

Issue M-AF230 is no longer available for ordering. Environment M-AF230 8750000010 MD20SR MD20SR-24/230T Cause Obsolete actuator needs replacement Resolution The M-AF230 is replaced by MD20SR-24/230T. Please see PA_00153 and other related documentation for more details. 

Issue Cannot order the VZ*8 valves, its no longer available.  Environment VZ*8 VZ*08C Cause A new line of VZ valves is now available. Resolution The old VZ series actuators have been replaced with a new. The old (VZ*8) is replaced by the VZ*18. for more information and details, please see PA_00156 and the related data sheets. Click here.  

Issue Which accessories and linkage kits are available? Environment MD5 MD10 MD20 MD40 AF LF Damper actuator Cause Accessories availability for damper actuators Resolution All available accessories are available in this document.

Issue The TA210U controller is obsolete since many years, but the manual is sometimes still requested Product Line Field Devices, TAC Vista Environment TAC210U TA210U 2107030QRW 2107030QRT 0844427005 0844428005 Cause Old controller Resolution The (Swedish-only) manual can be found here: TA210U Controller User Manual (L3238001.pdf).

Issue TA 240 U Tour Andersson Controller Environment Site with a TA 240 U Tour Andersson Controller Cause Controller needs change in programming Resolution Attached Manual for the Tour Andersson 240 can be found HERE. 

Issue Need replacement for AVUM4601 valve actuator Environment VEU, MEU, FEU, VZX, MZX Cause Need replacement for AVUM4601, AVUE4304, AVUE4354 or AVUX4202 valve actuator Resolution Use AVUM5601 actuator, this is the replacement for AVUM4601 230Vac actuator  Also AVUE4304 is replaced by AVUE5304 AVUE4354 is replaced by AVUE5354 AVUX4202 is replaced by AVUX5202 Click HERE for the datasheet Click HERE for the Installation Instructions

Issue What are the Low and High level security default passwords for the SMT 1201 controller? Environment SMT 1201 Low security password High security password Cause Customer is unable to access the controller. Resolution The "Default" passwords for the SMT 1201 are as follows; Low level security is "0000" High level security is "12345678" For the controller data sheet please click HERE. If the passwords are not accepted, then please contact Product Support by selecting the "Contact" option.

Issue The .xif file for MZ09L and MZ18L is not available on the Extranet. Environment MZ09L 8455112000 MZ18L 8455102000 Cause The .xif file for MZ09L and MZ18L is sometimes necessary for use in projects. Resolution The current version (as of  Sept. 10 2012) is available for download here. Both actuators have the same Lonmark profile and the .xif file is common to both.

Issue Some actuators manufactured by Belimo are also available from Schneider Electric Environment Various Belimo Actuators: AF 230 AF 230-S AF 24 AF 24-S AF 24-SR LF 230 LF 24 LM 230 A LM 230 A-S LM 24 A LM 24 A-S LM 24 A-SR NM 230A NM 24A NM 24A-SR SM 230A SM 24A SM 24A-SR Various Schneider electric actuators, part no: 875-0000-010 875-0010-010 874-0000-010 874-0010-010 877-0000-010 875-0003-000 874-0003-000 875-1001-000 875-1003-000 875-1005-000 875-1007-000 875-1009-000 875-1011-000 875-1015-000 875-1019-000 875-1021-000 875-1025-000 875-1029-000   Cause Cross reference between various actuators of Belimo and Schneider Electric Resolution A cross reference table for these actuators can be found here (.xls).