Building Automation Knowledge Base

Issue Since the actuator M6B is no longer available in our portfolio, a replacement actuator is requested. Environment M6B VTRM Cause Replacing the obsolete M6B actuator. Resolution There is no replacement actuator for the M6B in the Schneider Electric portfolio. However, the manufacturer ESBE (http://www.esbe.se/) should still have the M6B in their portfolio in both 0-10V and 4-20mA versions. No cross reference to their part numbers are currently available.

Issue Replacement stuffing boxes for V392 Environment V392 Spare stuffing boxes: DN15 type V: 0804343005 DN15 type X: 0804362005 (glycol) DN20-50 type T: 0802064005 DN20-50 type Q: 0804724005 (glycol) Cause Replacement parts for obsolete valve V392 Resolution Spare stuffing boxes for DN15 was withdrawn in 20101231. For DN20-50, they will be withdrawn in 20141231. Please contact your Orders Dept for more details and availability.

Issue Spare parts availability for Controlli MVL56 (Forta M700) Environment Controlli MVL56 Forta M700 Cause Replacement parts   Resolution Due to the spring return design of this actuator, no spare parts are available, with the possible exception of the PCBA. Any repairs should be done by the factory for safety reasons. However, MVL56 is a Controlli product and they should be contacted directly for further details. If the M700 fails after the warranty then a new actuator is required, the MG900 SR is a lower cost alternative to the M700.

Issue Can more than one MS41-7153 actuator be paralleled when being driven by a MNB series controller? Environment MNB series controller Several MS41-7153 actuators controlled by a common signal. Cause Series of parallel dampers are to be controlled by the same control signal. Resolution Yes several MS41-7153 actuators can be driven by the analog output from a MNB series controller. There are two acceptable methods of providing parallel control. 1. Control the first actuator using either the voltage output or current output from the controller and cascade control from the feedback AO of one actuator into the AI of the next actuator.  The AO of the last actuator should be routed back to the controller to provide feedback confirmation of the damper operation.  In this way should any damper fail, the feedback will indicate that one (or more) of the actuators did not drive to the desired position.  Using this method there is theoretically no limit to the number of actuators that could be driven from one controller AO output.  When controlling a series of actuators in this manner, you must make sure that the power to the actuators are phased correctly, especially if using more than one transformer.   2. Alternate method for use with four or less actuators.  Up to four actuators may be driven using the 4-20 ma drive from the controller.  The 500 ohm resistor should be connected across the actuator wired closest to the controller.  When using this method, and more than two actuators are being parallel controlled, the resistance of the parallel resistor may need to be increased slightly or the drive signal may need to be increased by as much as 2.5% to make up for the parallel resistance effect of the 80 k-ohm input impedance of the actuators.

Issue The STS safety feature for Forta actuators is obsolete since a few years. Environment Forta STS M700 MG900 Cause With the Forta STS battery safety feature no longer available, a replacement actuator with similar safety function is requested. Resolution Depending on torque requirements, the Forta M700 and Forta MG900 spring return actuators are available. Just make sure the correct closing direction (stem up/stem down) is defined when ordering these actuators.

Issue Are there any pressure sensors in the Schneider Electric portfolio that uses the 4-20mA signal? Environment Pressure sensor Cause Cannot find any 4-20mA pressure sensors in the current portfolio Resolution No pressure sensor in the current portfolio is using the 4-20mA signal

Issue Is it possible/suitable to mount the MF20 or MF40 actuator in 90 degrees angle out from the valve VF208W? Environment MF20 MF40 VF208W Cause In some applications/environments it is hard to fit in the actuator on top of the valve due to space limits. Resolution There should be no problem mounting the actuator / linkage in a 90 degree angle out from the valve.

Issue Both valve and actuator in question are obsolete. In this case the valve is still OK, while the actuator is in need of replacement. Environment M44 STM-G M9B/24 8601010000 mounting kit 8600990000 Cause Replacement of obsolete actuator Resolution M9B/24 (8601010000) together with mounting kit 8600990000 will replace the M44PBB when used on STM-G. The only feature missing would be the potentiometer.

Issue Can Satchsize the valve sizing software be used with Windows 7? Environment Valve sizing Satchsize Cause Customer wishes to use Satchsize on Windows 7. Resolution Satchsize is no longer available and is not supported with Windows 7, but a new program is available. TAC Valve 1.8 UK can be downloaded from the Buildings Business Extranet. Once installed please use the help files installed with the program.

Issue Is it possible to use the VG221F valve in applications with a glycol content up to 50%? Environment VG221F Cause Some valves are not suitable for use in applications with glycol content in media. Resolution The VG221F can be used in applications with deaerated water with glycol-type antifreeze agent (max 50%)

Issue Since the V354 is obsolete, a replacement valve is requested. Environment V354 part no 7315425000 Spare stuffing box part no 0804629005 Cause Replacing obsolete valve  Resolution No replacement valve is available. Pipe work is required due to port configuration. A spare stuffing box, part no 0804629005, is available for ordering.

Issue Will a M1500 actuator fit onto a V232 valve? Environment M1500 Forta V232 Venta Cause Application assistance on Forta M1500 and Venta series V232 valve. Resolution The M1500 will fit, but since the V232 is only available in DN25,32, 40 and 50 size, we recommend using the smaller M400 or M800 instead.

Issue Replacement for Satchwell DDT0001 Duct Temperature Sensor.  Environment Satchwell Sensor DDT DDT0001 Cause Obsolescence of Satchwell DDT0001 Duct Temperature Sensor. Resolution Replace Satchwell DDT0001 Duct Temperature Sensor with Schneider Electric STD660 Duct Temperature Sensor. The Schneider Electric STD660 provides the same functionality as the Satchwell DDT0001, differing only in its appearance, dimensions and terminal identification. The Schneider Electric STD660 Terminals are not polarised.    

Issue Replacement for Satchwell DR2253 Temperature Sensor. Environment Satchwell Sensor DR DR2253 Cause Obsolescence of Satchwell DR2253 Temperature Sensor. Resolution The Satchwell DR2253 Temperature Sensor is replaced with the Schneider Electric STR614 Temperature Sensor. The Schneider Electric STR614 provides the same functionality as the Satchwell DR2253, differing only in its appearance, dimensions and terminal identification. The Schneider Electric STR614 terminals are not polarised.

Issue In some applications a spring return actuator is requested/required Environment VF208W Cause application requirement Resolution No spring return actuator is currently available for VF208W. However, there is a plan for this in the near future.

Issue Since the M-SM actuator no longer is available, a replacement is requested. Environment M-SM 8700000000 MD20B-24 8751025000 AUX Switches: Old: S1-B 9141000000 S2-BB 9141010000 New: MD-S1 9141060000 MD-S2 9141061000 Cause Replacing obsolete actuator  Resolution The M-SM is replaced by the MD20B-24. If AUX switches are used, S1-B is replaced by MD-S1, and S2-BB is replaced by MD-S2.

Issue Spare stuffing box (packing box) that fits a number of older valves. Environment Stuffing box Type T part no 0802064005 V221 V223 V265 V294 V295 V298 V353 V395-1 V396-1 Cause This spare stuffing box fits a number of different valves from the old and current TAC Schneider Electric portfolio. Resolution Stuffing box Type T part no 0802064005 fits the following valves: V221, V223, V265, V294, V295, V298, V353, V395-1, V396-1 NB: this product will be terminated by Dec 31, 2013.

Issue Forta actuator only modulates 0-50% when given a 0-10V input signal.  All DIP switches are OFF, so it should modulate 0-100% for 0-10V input. Environment Forta M800 Cause If the X1 and MX control signal connections are reversed, the actuator will appear to modulate but the stroke will be limited to 0-50% Resolution Ensure that the actuator is correctly wired, according to the Forta datasheet.

Issue Power supply options for Multical 602 meter Environment Kamstrup Multical 602 Cause Power supply option Resolution The Kamstrup Multical 602 can only use 24V AC as power supply!

Issue Is it possible to use a 24V signal to keep the actuator in a constant position? Environment MD20 MD-20 Cause In some applications, a constant signal is requested for use as a safety device (spring return) only. Resolution The MD20 is designed to use a 2-10V control signal. Anything outside of this spec is not recommended.