Building Automation Knowledge Base

Issue Unable to locate data sheet Environment EMS5 Cause No download available Resolution Click here to view the data sheet. Click here to download the data sheet.

Issue What can the Boost relay (R2) be used for? Environment Boost Termination Day control Relay R2 Cause The plant continues to operate even when the temperature is greater than the Td setting. Resolution The SVT Optimiser has a primary function of performing and optimised timed start, this is achieved using a space temperature sensor to provide an indication of the buildings internal temperature The controllers secondary function will allow a "Boost Function" or "Day Control" of the plant. The controller output relay R2 is used for this function. Boost Function. Relay R2 contacts 5 - 4 make at the end of occupancy, ready for boost period. Relay R2 contacts 5 - 3 make at Occupancy start and provides a termination of the Boost period. For Boost Operation set the slide switch to position "A" as shown below.   Day control. Relay R2 contacts 5 - 4 make when the space temperature is above the (Td) setting. Relay R2 contacts 5 - 3 make when the space temperature is below the (Td) setting. To review the complete SVT data sheet, please chick HERE.

Issue Replacing a CSC2701 compensator with a CSC5252. Environment CSC 2701 5252 compensator Cause The CSC2701 compensator has been superseded by the CSC5252. Resolution The conversion is normally fairly straight forward, but can be more complicated if an SVT is used to provide a boost signal. . Please note that the link between terminals 34 and 35 is only fitted where a 24 volt actuator is used. In the chart above the old and the new terminal numbers are shown. If the old controller was connected to an SVT, which provided a boost facility, terminals 1, 4 and 5 were used to achieve this. With the new CSC, this facility is achieved using the "Setup" function. This is achieved by linking SVT terminals 4/5 to 7/8 on the CSC, having first removed the link. To review the CSC2701 data sheet, please click HERE. To review the CSC5252/5352 data sheet, please click HERE. Please be aware: since July 2016 the CSC compensator and other descrete controllers were withdrawn from service. To see "PA-00479 - Discrete Controllers - Notice of Withdrawal - Satchwell" click here.

Issue Drayton DC1000 and DC1100 differences Environment DC1000 DC1100 Cause What are the differences between the DC1000 and the DC1100? Resolution The DC1000 was the predecessor of the DC1100, and therefore their functionality is very similar. From the information below it can be seen that the main difference is that the DC1000 had only one boiler output and had a "System On" output. The DC1100 has two boiler outputs and therefore can sequence the boilers, but it does not have a "System On" output. It should be noted that the Remote Communications module is no longer available. For the DC1000 data sheet please click HERE. For the DC1100 data sheet general please click HERE, and for the DC1100 data sheet "A" please click HERE. DC1000 DC1100

Issue Since the MZ89 actuator is obsolete, the documentation may be hard to find. Environment MZ89T VZ28 VZ38 VZ48 Cause Documentation availability. Resolution The documentation for MZ89 and the VZ series valves can be found here.

Issue Documentation for the obsolete PentaSens occupancy- and intrusion detection sensor (part no:6553002000) is requested. Environment CeTeLaB PentaSens part no 6553002000 Cause The product is obsolete from the Schneider Electric portfolio. But since it was a Class 3 product, documentation was provided by the manufacturer. Resolution You can find the CeTeLaB produced data sheet here. Also, a search on the Internet will provide more hits and further information/details on this product.

Issue Reconditioning  a Satchwell MB/MBX valve using the 617-9-4xx kit. Environment Satchwell MB MBX Reconditioning Valve Cause Drawings of the valve internal assembly were not available. Resolution The reconditioning of an MB / MBX value is not easily undertaken, and it is recommended that the valve is removed from the pipework to carry out this process. If removal from the pipework is not possible, then it is essential that the system water is completely isolated from the valve, and that any remaining water in the valve is drained away. Please note; that if the valve is not isolated correctly, then when the valve front is removed, it will be virtually impossible to reassemble it, and should the water be hot, then serious injury might occur. To refer to the valve internal assembly, please click HERE. It should be noted that the illustration relates to those MB Valve Bodies having 2 shoes (1.1/2”&2” only), the smaller valves only have one shoe. To refer to the "Recondition Kit Drawing", please click HERE. To refer to the "O ring Assembly", please click HERE.

Issue Where is the 0-10 volt control signal connected, on a Forta actuator? Environment Forta M400 Actuator Wiring Connections Cause The customer was uncertain how to connect the M400 actuator. Resolution The general configuration and connection details are the same for all of the Forta range of actuators. All of the range can accept a 0-10 volt dc input or increase/decrease signals. Terminal Function Designation G                  24 V AC Supply G0                24 V AC return X1                 Input MX                Input, neutral VH                Increase VC                Decrease G1                16 V DC Supply for RC Y                   0–100 % Feedback signal The 0-10 volt control signal is connected to (X1) and the associate 0 volt is connected to (MX). If there is not an associated 0 volt available then (MX) should be connected to the (G0) terminal. To download the Forta Handbook please click HERE.

Issue CSC4201 CSC4202 CSC4301 CSC4302 Climatronic Compensator Controller display flashing. Environment Satchwell CSC4201 CSC4202 CSC4301 CSC4302 Climatronic Compensator Controller Cause Manual Override Switch is set in a mode other than AUTO (Clock symbol) Resolution Reset Manual Override Switch to AUTO (Clock symbol) mode. N.B. Details of this and other Manual Override Switch mode options and associated selection / de-selection may be found in the CSC4201 CSC4202 CSC4301 CSC4302 Climatronic Compensator Data Sheet, a copy of which may be viewed here.

Issue DC1100 / DC1400 Optimiser / Compensator Controller Holiday Date amendment / removal. Environment DC1100 DC1400 Optimiser Compensator Controller Cause Amendment / removal of DC1100 / DC1400 Optimiser / Compensator Controller Holiday Date required. Resolution Select SET on Front Panel Switch  Select HOLIDAY DATES from menu options Select SET HOLIDAYS Select SET HOLIDAY START & STOP DATES If start-stop dates are selected as being the same, then Holiday Date or period is ignored. Details appear in the DC1100 Installation document which may be viewed here. Details appear in the DC1400 Installation document which may be viewed here.

Issue CSC5252 and CSC5352 Climatronic Compensator Controller display flashing. Environment Satchwell CSC5252 CSC5352 Cause Manual Override Switch is set in a mode other than AUTO (Clock symbol) Resolution Reset Manual Override Switch to AUTO (Clock symbol) mode. N.B. Details of this and other Manual Override Switch mode options and associated selection / de-selection may be found in the Climatronic CSC5352 and CSC5252 Compensator User Guide, a copy of which may be viewed here.

Issue CSC5252 and CSC5352 Climatronic Compensator Controller will not display Room Temperature.  Environment Satchwell CSC5252  CSC5352  Climatronic Compensator Controller  Room Temperature.  Cause CSC5252 and CSC5352 Climatronic Compensator Controller may not display Room Temperature for the following reasons :- 1.  No Room Temperature Sensor installed. 2.  Room Temperature Sensor installed but ROOM INFLUENCE MODE default value in CSC Controller has not been amended.. .  Resolution CSC5252 and CSC5352 Climatronic Compensator Controller may be set to display Room Temperature as follows:- 1.  Ensure Room Temperature Sensor is installed and connected to CSC Controller Room Temperature Sensor Input terminals. 2.  Ensure ROOM INFLUENCE MODE (INF) setting in CSC Controller Fine Tune Mode is set to value = 1 N.B. Sensor connection details and the means of entering and exiting the CSC Controller Fine Tune Mode both appear in the Climatronic CSC5352 and CSC5252 Compensator User Guide, a copy of which may be viewed here.

Issue Needs to replace older actuator on DN15 valves that are still working. Environment Forta V282 DN15 V294 DN15 V384 DN15 V386 DN15 V394 DN15 V298 DN15 Cause Replacing old actuators on DN15 valves that are still in good working condition. Resolution For fitting of Forta actuators on DN15 valves, please use mounting kit according to this 0FL. 

Issue DC2100 series Optimiser / Compensator Controller requires resetting to default values due to exposure to electrical corruption. Environment DC2100 series Optimiser / Compensator Controller installed to control Variable Temperature Mixing Valve, Boiler/s, Pumps etc. 2100H DC 2100 Cause DC2100 series Optimiser / Compensator Controller has been exposed to electrical corruption. Resolution DC2100 series Optimiser / Compensator Controller may be reset to default values as follows :-  Isolate power to Controller. Open Door of Controller. Locate PCB on rear of Controller Door. Locate pair of Steel Pins (marked PL1) on PCB. Link out pair of Steel Pins for 10 seconds approx. Remove Link. Close Door of Controller. Reinstate power to Controller. Re-programme Controller. Re-programming procedure for the DC2100 series Optimiser / Compensator Controller may be viewed here. Should the above reset to default values procedure fail to enable the DC2100 series Optimiser / Compensator Controller to be re-programmed then replacement of the Controller may need to be considered. POSSIBLE REPLACEMENT  The most common control application to which theDC2100 series Optimiser / Compensator Controller may be applied comprises the following combination of inputs and outputs.  Outside Air Temperature Sensor Inside Air Temperature Sensor Compensated Heating Temperature Sensor Variable Temperature Heating Circuit Valve Actuator Boiler/s (2 maximum) H W S On/Off output (independent) Should such inputs and outputs be confirmed then the DC1100 Optimiser / Compensator may be installed in place of the DC2100 series Optimiser / Compensator Controller. Details of the DC1100 Optimiser / Compensator Controller may be viewed here. Drayton A7xx series Sensors connected to the DC2100 Optimiser / Compensator Controller are compatible with the DC1100 Optimiser / Compensator Controller and may therefore be retained. N.B. It should be noted that where a DC2100 series Optimiser / Compensator Controller is included in an installation of a more complex nature then an alternative solution utilizing different products may need to be considered In such installations not only will the DC2100 series Optimiser / Compensator Controller need to be replaced but its associated Sensors will also need to be replaced. Resolutions to such installations may best be determined following a review of the control system installed by a member of the local Schneider Electric office.

Issue DC2100 series Optimiser / Compensator Controller requires replacement due to obsolescence. Environment DC2100 series Optimiser / Compensator Controller installed to control Variable Temperature Mixing Valve, Boiler/s, Pumps etc. Cause Obsolescence of DC2100 series Optimiser / Compensator Controller. Resolution OVERVIEW DC2100 series Optimiser / Compensator Controllers are flexible with regard to the number and type of electrical inputs and outputs to which they may be connected, enabling the Controller to be applied to a wide range of control applications.  Of the DC2100 series Optimiser / Compensator Controller models manufactured, the final version was the DC2100H Overview details of the DC2100H Optimiser / Compensator Controller may be viewed here. INSTALLATION AND COMMISSIONING In view of the numerous control applications to which the DC2100 series Optimiser / Compensator Controller may be applied, numerous wiring connection variations will also apply. Please therefore check the number of inputs and outputs connected to the DC2100 series Optimiser / Compensator Controller installed before proceeding, as this will assist in determining the suitability of the possible replacement Controller suggested below. Installation and Commissioning details of the DC2100H series Optimiser / Compensator Controller may be viewed here. POSSIBLE REPLACEMENT  The most common control application to which theDC2100 series Optimiser / Compensator Controller may be applied comprises the following combination of inputs and outputs.  Outside Air Temperature Sensor Inside Air Temperature Sensor Compensated Heating Temperature Sensor Variable Temperature Heating Circuit Valve Actuator Boiler/s (2 maximum) H W S On/Off output (independent) Should such inputs and outputs be confirmed then the DC1100 Optimiser / Compensator may be installed in place of the DC2100 series Optimiser / Compensator Controller. Details of the DC1100 Optimiser / Compensator Controller may be viewed here. Drayton A7xx series Sensors connected to the DC2100 Optimiser / Compensator Controller are compatible with the DC1100 Optimiser / Compensator Controller and may therefore be retained. N.B. It should be noted that where a DC2100 series Optimiser / Compensator Controller is included in an installation of a more complex nature then an alternative solution utilizing different products may need to be considered. In such installations not only will the DC2100 series Optimiser / Compensator Controller need to be replaced but its associated Sensors will also need to be replaced. Resolutions to such installations may best be determined following a review of the control system installed by a member of the local Schneider Electric office.

Issue Controlli S300 Actuator Environment Controlli S300 Actuator Cause Controlli S300 Actuator terminal details. Resolution L=Neutral L'=230Vac B=Close signal from thermostat or control device R=230V to thermostat or control device V=Open signal from thermostat or control device To test: Place a wire link between R and B, the valve actuator will close, place a wire link between R and V, the valve actuator will open. If a auxiliary switch kit D22 is fitted, this can be used to signal the boiler/pump to start if the installation was a domestic. For the actuator datasheet click here.

Issue Controller used in compensation mode from the outside temperature sensor. Environment MMC 2401 Controller Compensation Cause Explanation of codes used when in compensated mode. Resolution The compensation mode is selected by choosing code 17 and entering value 001 There are a number of codes which are relevant, the main codes are listed below. 6 = Outside Temperature Changeover 1 - default value = 20 7 = Outside Temperature Changeover 2 - default value = -5 10 = Compensator Set Value - default value = 30 11 = Ratio 1  - default value = -15 12 = Ratio 2  - default value = -25 13 = Ratio 3  - default value = 0 The screen shot below shows have the above settings are used. For the MMC data sheet please click HERE. and for the full details click HERE.

Issue Veris HW sensor part number for displaying both the temperature and humidity readings on the sensor's LCD Environment Veris HW Series deluxe wall humidity sensors Cause There is a need to display both the humidity and temperature readings on the sensor's LCD Resolution In order for unit to display both temperature and humidity, use the TA or D temp selection in the part number. Refer to the HW series sensors datasheet.

Issue V241 / V341 valves do not automatically come complete with connections. Environment Valves V241 V341 Connections Pipework connections Cause The valve body is purchased separately to the connections. Resolution When purchasing a V241 / V341 valve it must be remembered that the valve body and the connections have separate specification numbers. Example to purchase a 32mm V341 valve. Valve body - 731-4141-000 Connection types available; Internal thread connection (Standard) - 911-2100-32 (*3) Soldering type connection (Standard) - 911-2101-32 (*3) Welded type connection (Standard) - 911-2102-32 (*3) Note:- you will require the same number of connections as there are ports on the valve. For the details of the V241 please click HERE. For the details of the V341 please click HERE. For the details of the connections please click HERE.

Issue Can old generation temperature sensors or new generation temperature sensors be used on CXR, CXT, CZT, CSC5252, CSC5352 ? Environment CXR CXT CZT CSC CSC5252 CSC5352 CSC 5252 CSC 5352 Cause Can old generation sensors or new generation sensors be used on CXR, CXT, CZT, CSC5252, CSC5352? Resolution Existing old generation sensors can be used on the current range of discrete controller, however they CANNOT be used/mixed with new generation sensors. Note, when replacing sensors or upgrading a controller to the current version, terminal numbers are different between old generation and new generation sensors, see the datasheet for terminal numbers. For the CXT datasheet click here. For the CXR datasheet click here. For the CZT datasheet click here. For the CSC5252 or 5352 datasheet click here.