Building Automation Knowledge Base

Issue DC1100 or DC1400 not accepting 0112 passcode to clear alarms or to alter settings. Environment DC1100 DC1400 Cause When the passcode 0112 is used to clear alarms or to alter settings, the code is not accepted. Resolution The controller will require coldstarting. 1. Using the setup menu and view settings, make a note of the settings of the controller. 2. Coldstart the controller by turning the power off, hold down the enter and exit buttons, power on and then release the buttons. The controller should re-initialise and will return to its default settings. 3. Reprogramme the controller with time and date, heating and HWS schedules, and any other parameter required in the set up menu. e.g. no of boilers, HWS linked etc. 

Issue Is it possible to install the SPP110 sensor on a CPVC pipe system? Environment SPP110: 004702020 004702040 004702060 004702080 004702100 004702120 004702140 Cause Application suitability for plastic CPVC pipes. Resolution The SPP110 sensor is delivered with a G1/4 male thread on the sensor body, and then an adaptor to male G1/2 thread. It needs to be determined locally if a suitable threaded fitting (female) can be securely adapted to the CPVC pipe.

Issue SCR sensors working with AC Voltages Environment SCR Series Sensors Cause An issue was found with AC voltages below 22.8VAC Resolution Any SCR units that have been shipped since 1 March 2012 will be fine with the full AC supply range (as per their datasheet), however we had an issue with older units that require the AC supply to be above 22.8 Volts to ensure there are no problems. DC supply voltages operate correctly on all SCR sensors. See TPA-FD-12-0002.00 and TPA-FD-12-0003.00 for full details of the issue and changes made to the sensors.

Issue Replacing battery Environment Wall mounted   Cause Old age Resolution RS Order number=         201-9438 Type LS14500 Click here to be linked to the RS page

Issue For Accuracy, only the 0-100 Pa range is listed in the documentation. Same thing with the Linearity. Environment SPD310: 004700320 004700340 SPD360: 004700360 Cause The sensors are available in several other ranges than just the listed 0-100Pa. Resolution Accuracy ( linear output 😞          Accuracy 0-100 Pa:                    This means that all other ranges ( 300, 500, 1000, 1200, 2500, 5000 Pa ) has an accuracy of 1,5% FS. Only range 0-100 Pa has a accuracy of 1,5% FS. 0,75 % of higher pressure ranges sensors means more Pa comparing to 1,5% of 100 Pa. 0,75% f.e. of 2500 Pa means a max. deviation of 18,75 Pa.     Same regarding Linearity:  Linearity incl. temp. and hysteresis:                   Linearity incl. temp. and hysteresis 0-100 Pa:       As above, for all ranges 300, 500, 1000 … the linearity is < / = 2% FS, but only for range of 100 Pa linearity is 4% FS.

Issue Replacement Printed Circuit Boards for Forta actuators. Environment TAC Forta: M400 Spare PCB: 100106730 M700 SRSD Spare PCB: 100106790 M700 SRSU Spare PCB: 100106780 M800 Spare PCB: 100106740 M1500 Spare PCB: 100106770 Cause Listing of spare replacement Printed Circuit Boards for TAC Forta series actuators. Resolution TAC Forta: M400 Spare PCB: 100106730 Can be used with the following version numbers (three last digits) as shown, or higher M400………………………..880-0230-030 M400-S2…..………………..880-0231-030 M700 SRSD Spare PCB: 100106790 Can be used with the following version numbers (three last digits) as shown, or higher M700-SRSD..………………880-0440-000 M700-SRSD-S2……………880-0441-000 M700 SRSU Spare PCB: 100106780 Can be used with the following version numbers (three last digits) as shown, or higher M700-SRSU..………………880-0430-000 M700-SRSU-S2……………880-0431-000 M800 Spare PCB: 100106740 Can be used with the following version numbers (three last digits) as shown, or higher M800………………………..880-0310-030 M800-S2…..………………..880-0311-030 M800-STS...………………..880-0312-040 M800-S2-STS…..………….880-0313-040 M1500 Spare PCB: 100106770 Can be used with the following version numbers (three last digits) as shown, or higher M1500………………………880-0450-000 M1500-S2…………………..880-0451-000

Issue Motorizing a Keystone butterfly Valve (Keystone F1-CLJ2, 1000kpa, SQ 209719) Environment Keystone butterfly valve Keystone F1-CLJ2, 1000kpa, SQ 209719 Cause Fitting a Schneider Electric brand actuator onto a Keystone butterfly valve is requested Resolution Unfortunately we do not have any actuators or linkage kits that fits this application.

Issue Is the TAC228R controller still available? Environment TAC228R 2281084000 Cause Availability of old controller Resolution The TAC228R was withdrawn in 2011 and is no longer available for ordering for new projects. It will still be available as a spare part until 2021-12-31 when it will be terminated. A suitable alternative is the SE8300 series of room controllers. The TAC228R had the ability of a remote setpoint using a 0-10V signal, by using lua script and utilizing the input UI23, the same operation can be achieved.

Issue What is included when the PIR option is ordered? Environment SE7300 series controllers Cause The SE7300 series controllers can be ordered both with and without the PIR option Resolution If the PIR sensor functionality is ordered as included from factory, code 55 (example: SE7600A5545E) should be used. If PIR functionality is not required, code 50 (example: SE7600A5045E) should be used. PIR functionality can be retrofit at any time. For details and part numbers, please see related documentation.

Issue Accuracy on TAC type sensors Environment Vista family sensors TAC 1.8kOhm temperature sensor Cause In some applications, a high accuracy is requested. Resolution All temperature sensors designed for work with the TAC Vista platform is using a 1.8kOhm sensor thermistor (1.8kOhm@25°C), specifically designed to TAC specifications. Since we are using the sensors for HVAC applications, and not industrial purposes, the accuracy is +/- 0.35°C between 15 and 30°C. It's then less accurate in temperatures below and higher than this span. I have used STR100 as an example in this case.  

Issue Which damper actuators are available with 3-point control? Environment 8751001000 Actuator Damper MD5B-230 8751003000 Actuator Damper MD5B-230-S 8751005000 Actuator Damper MD5B-24 8751007000 Actuator Damper MD5B-24-S 8751011000 Actuator Damper MD10B- 230 8751015000 Actuator Damper MD10B-24 8751021000 Actuator Damper MD20B- 230 8751025000 Actuator Damper MD20B-24 8751035000 Actuator Damper MD40B-24           Cause Both modulating control (0-10V) and On/Off 3-point control damper actuators are available. Resolution All MDX(X)B damper actuators are On/Off or 3-point control.

Issue Calibration requirement? Environment STD300: 006920121 STD300-300 -50/50 006920141 STD300-300 0/100 Cause Some sensors on the market requires calibration when connected to the controller, in order to function properly. Resolution No calibration is required when connecting the STD300 to a Xenta controller. The sensor is using a 4-20mA output signal, so the controller needs to be configured for this type of signal in order to work with this sensor.

Issue Since the MZ18 is only 180N torque spec, is there a higher torque version available? Environment MZ18 in various versions. Cause Some applications require a higher torque actuator. Resolution Unfortunately, the MZ18 is only available in a 180N version through Schneider Electric.

Issue In some heat / cool / flow meter installations, the customer is also requesting a billing software to be used together with the meter Environment heat / cool / flow meters Multical 601 602 Billing software Cause Being able to provide a complete package of meter hardware and billing software. Resolution Unfortunately, Schneider Electric does not have any billing software for heat / cool / flow meters in the product portfolio. Our recommendation is to look at what the Kamstrup brand has to offer.

Issue What quality spec does the tubes included with the sensors have? Environment 004700320 SPD310-100/300/500/1000Pa Differential Air Pressure Transmitters SPD310-100/300/500/1000Pa   004700340 SPD310-1000/1200/2500/5000Pa Differential Air Pressure Transmitters SPD310-1000/1200/2500/5000Pa   004700360 SPD360-300/500/1000/2500Pa Differential Air Pressure Transmitters SPD360-300/500/1000/2500Pa Cause The quality of the sensors are, depending on environment where installed, vital information in order to determine if the sensor is suitable or not. Resolution   The included plastic tubing consists of the tubes and connection hose. Tubes are from ABS Resin and the hose is from PVC. Both materials themselves are suitable for a wide range of applications also outside and of high consistency against different influences. But they are not especially strengthened against UV radiation.

Issue Details on hysteresis of the SPD910 series sensors Environment 004701090 SPD910 2000Pa Switch Pres Air 004701080 SPD910 1000Pa Switch Pres Air 004701070 SPD910 500Pa Switch Pres Air 004701060 SPD910 300Pa Switch Pres Air Cause In some applications the hysteresis of the sensor is important Resolution There are 2 types which can switch the 300 Pa:  - SPD910-300Pa and SPD910-500Pa. The hysteresis or switching differs from type to type because of range and the clip feather. In general they are as follows: SPD910-300Pa             0,1mbar +/-15% SPD910-500Pa             0,2mbar +/-15% SPD910-1000Pa           0,4mbar +/-15% SPD910-2000Pa           1,0mbar +/-15%

Issue Is it possible to order a LON or MBUS base module separately after the main order of the heat meter is done, to complete the setup? Environment Multical heat meter heatmeter MAMBUSBASE  Replacement Mbus Base Module MALON BASE  Replacement LON Base Module Cause If the base module was not ordered during original purchase, it may be necessary to order separately. Resolution The base modules can be ordered separately afterwards to complete the setup: MAMBUSBASE - Replacement Mbus Base Module MALON BASE - Replacement LON Base Module

Issue How to calculate the pressure drop across a fully open valve Environment Valves Cause End user wants to calculate the pressure drop across a  valve for a given flow rate. Resolution 1. Select a valve to suit the application and note its Kvs. note if the figure is Cvs then Cvs * 1.03 = Kvs 2. Flow rate is required. P (bar) = (m3/hr / Kvs) squared. or P (bar) = ( (l/s * 3600 /1000) / Kvs) squared. To convert to Bar to Kpa:  1 Bar = 100 Kpa

Issue When using the old part no for ordering, it's no longer valid. Environment SHD100 006902320 006902321 Cause Revised version of sensor Resolution Due to a revised and improved version of the sensor, the part number was revised from 006902320 to 006902321.

Issue Is it possible to make the EM9 90° to a 180°? Environment EM9 8601100000 8601110000 Cause Due to large quantities of 90° version in stock but no demand, changing to 180° type would cover the requests of that model. Resolution No such method is known to us. Also, we strongly recommend not doing this since it will void warranties and the products will be delivered with the wrong part number.