Label: Field Devices - Building Automation Knowledge Base - Communities

Issue S-E L2SV Linkage Kit and S-E L7SV Linkage Kit compatibility with Satchwell Plug and Seat Valve Bodies. Environment Satchwell 1 series Plug and Seat 2-port and 3-port Valve Bodies. Satchwell 2 series Plug and Seat 2-port and 3-port Valve Bodies. Satchwell 3 series Plug and Seat 2-port and 3-port Valve Bodies. Satchwell 7 series Plug and Seat 2-port and 3-port Valve Bodies. Cause Use the correct S-E Linkage Kit with Satchwell Plug and Seat Valve bodies. Resolution 1.  Observe specification number of Satchwell Plug and Seat Valve Body Generally where a Satchwell AL series Linear Actuator is fitted to a Satchwell plug and seat Valve Body, the Actuator may be replaced by an equivalent S-E Forta or MV15B series Linear Actuator and appropriate S-E Linkage Kit. It should be noted however that neither the S-E L2SV Linkage Kit nor the S-E L7SV Linkage Kit will enable an S-E Forta or MV15B series Linear Actuator to be mounted on a Satchwell 7 series MZ/MZF or a Satchwell 7 series VZ/VZF plug and seat Valve Body. The internal screw threads of the Neck Adaptors included in the S-E L2SV Linkage Kit (880 – 0124 – 000) and S-E L7SV (880 – 0126 - 000) Linkage Kit are compatible with the external screw threads on Satchwell 1, 2 & 3 series Valve Body necks only. The external screw threads on Satchwell 7 series Valve Body necks however differ to those on Satchwell 1, 2 & 3 series Valve Body necks. Consequently neither the S-E L2SV Linkage Kit nor the S-E L7SV Linkage Kit will enable an S-E Forta or MV15B series Linear Actuator to be mounted on a Satchwell 7 series Valve Body. A S-E Forta series Linear Actuator may be mounted on a Satchwell 7 series Valve Body however using Linkage Kit 880 – 0135 – 000.  No equivalent Linkage Kit is currently available for use with the MV15B series Linear Actuator. The Satchwell Valve Body series may be determined from the Valve Body specification number stamped on the Valve Body Identification Collar, where the single middle digit of the specification number denotes the series. In the case of a Satchwell 7 series Valve Body for instance the single middle digit of the specification number will be the number 7 (e.g. 626 – 7 – 402)

Issue TS-8XXX and TS-9XXX 1,1000 Ohm Balco sensor, Fahrenheit resistance table. Product Line Field Devices Environment Field devices Balco temperature sensors Cause Reference for integration and calibration Resolution Download spreadsheet file of chart below.     Temp (°F) Resistance (Ohms) Temp (°F) Resistance (Ohms) Temp (°F) Resistance (Ohms) -50 760.816 50 956.9 150 1185.2 -49 762.6 51 959 151 1187.7 -48 764.4 52 961.2 152 1190.1 -47 766.2 53 963.3 153 1192.6 -46 768 54 965.4 154 1195 -45 769.9 55 967.6 155 1197.5 -44 771.7 56 969.7 156 1199.9 -43 773.5 57 971.8 157 1202.4 -42 775.3 58 974 158 1204.9 -41 777.1 59 976.1 159 1207.3 -40 779 60 978.3 160 1209.8 -39 780.8 61 980.5 161 1212.3 -38 782.6 62 982.6 162 1214.8 -37 784.5 63 984.8 163 1217.3 -36 786.3 64 986.9 164 1219.7 -35 788.2 65 989.1 165 1222.2 -34 790 66 991.3 166 1224.7 -33 791.9 67 993.5 167 1227.2 -32 793.7 68 995.6 168 1229.7 -31 795.6 69 997.8 169 1232.2 -30 797.5 70 1000 170 1234.7 -29 799.3 71 1002.2 171 1237.3 -28 801.2 72 1004.4 172 1239.8 -27 803.1 73 1006.6 173 1242.3 -26 804.9 74 1008.8 174 1244.8 -25 806.8 75 1011 175 1247.3 -24 808.7 76 1013.2 176 1249.8 -23 810.6 77 1015.4 177 1252.4 -22 812.5 78 1017.6 178 1254.9 -21 814.4 79 1019.8 179 1257.4 -20 816.3 80 1022 180 1260 -19 818.2 81 1024.2 181 1262.5 -18 820.1 82 1026.5 182 1265.1 -17 822 83 1028.7 183 1267.6 -16 823.9 84 1030.9 184 1270.2 -15 825.8 85 1033.2 185 1272.7 -14 827.7 86 1035.4 186 1275.3 -13 829.6 87 1037.6 187 1277.8 -12 831.5 88 1039.9 188 1280.4 -11 833.5 89 1042.1 189 1283 -10 835.4 90 1044.4 190 1285.6 -9 837.3 91 1046.6 191 1288.1 -8 839.3 92 1048.9 192 1290.7 -7 841.2 93 1051.1 193 1293.3 -6 843.1 94 1053.4 194 1295.9 -5 845.1 95 1055.7 195 1298.5 -4 847 96 1057.9 196 1301 -3 849 97 1060.2 197 1303.6 -2 850.9 98 1062.5 198 1306.2 -1 852.9 99 1064.8 199 1308.8 0 854.8 100 1067 200 1311.4 1 856.8 101 1069.3 201 1314 2 858.8 102 1071.6 202 1316.7 3 860.7 103 1073.9 203 1319.3 4 862.7 104 1076.2 204 1321.9 5 864.7 105 1078.5 205 1324.5 6 866.7 106 1080.8 206 1327.1 7 868.6 107 1083.1 207 1329.8 8 870.6 108 1085.4 208 1332.4 9 872.6 109 1087.7 209 1335 10 874.6 110 1090 210 1337.7 11 876.6 111 1092.3 211 1340.3 12 878.6 112 1094.7 212 1342.9 13 880.6 113 1097 213 1345.6 14 882.6 114 1099.3 214 1348.2 15 884.6 115 1101.6 215 1350.9 16 886.6 116 1104 216 1353.5 17 888.6 117 1106.3 217 1356.2 18 890.7 118 1108.7 218 1358.9 19 892.7 119 1111 219 1361.5 20 894.7 120 1113.3 220 1364.2 21 896.7 121 1115.7 221 1366.9 22 898.8 122 1118 222 1369.5 23 900.8 123 1120.4 223 1372.2 24 902.8 124 1122.8 224 1374.9 25 904.9 125 1125.1 225 1377.6 26 906.9 126 1127.5 226 1380.3 27 909 127 1129.9 227 1382.9 28 911 128 1132.2 228 1385.6 29 913.1 129 1134.6 229 1388.3 30 915.1 130 1137 230 1391 31 917.2 131 1139.4 231 1393.7 32 919.2 132 1141.7 232 1396.4 33 921.3 133 1144.1 233 1399.2 34 923.4 134 1146.5 234 1401.9 35 925.4 135 1148.9 235 1404.6 36 927.5 136 1151.3 236 1407.3 37 929.6 137 1153.7 237 1410 38 931.7 138 1156.1 238 1412.8 39 933.8 139 1158.5 239 1415.5 40 935.9 140 1160.9 240 1418.2 41 937.9 141 1163.4 241 1421 42 940 142 1165.8 242 1423.7 43 942.1 143 1168.2 243 1426.4 44 944.2 144 1170.6 244 1429.2 45 946.3 145 1173 245 1431.9 46 948.5 146 1175.5 246 1434.7 47 950.6 147 1177.9 247 1437.4 48 952.7 148 1180.3 248 1440.2 49 954.8 149 1182.8 249 1443         250 1445.7

Issue What is difference between valve rangeability and turndown ratio? Environment Valves Cause Definition of the terms helps explain the flow outcomes. Resolution Rangeability - maximum controllable flow divided by minimum controllable flow. Turndown ratio - normal maximum system flow divided by minimum controllable flow. Rangeability is the inherent characteristic of the valve and turndown ratio is installed characteristic.

Issue Can you cap the A port or B port of a mixing or diverting valve to change the valve to a two way (straight through) valve? Product Line Field Devices Environment VB-9313 series Cause Capping A port or B port of a mixing or diverting valve to change the valve to a two way (straight through) valve Resolution Schneider Electric does not recommend this modification for the VB-9313 series, because the valves are not equal percentage and therefore will not provide good control. The valve performs as a linear valve when both ports are utilized. These curves are not additive. Total flow is determined with both ports contributing. The valve will perform as a quick acting valve if the B port is plugged and a nominally linear valve if the A port is plugged. Additional problems that can occur are: Insufficient force to close off. Two way valves usually require high actuator forces to provide close off. Valves are not designed to be tight seating. Valves are rated ANSI III therefore flow leakage through the controlled coil can be expected. Flow direction through the valve can not be reversed. Flow must oppose the plug when closing. Flow aiding the plug may create hammer by causing the plug to overcome the actuator force and slam against the seat. When converted to a two way control valve for a variable flow system, 3-way valves tend to be extremely over-sized creating poor process control. After considering the pros and cons of making this type of modification, you may choose to proceed with this modification. The performance penalties should be less in chilled water applications and higher in hot water application.

Issue What is pneumatic actuator spring range shift and how to eliminate. Environment Pneumatic Actuator Cause General information about the Spring range shift Resolution Spring range shift is an inherent feature of all spring return pneumatic actuators without positive positioners. The nominal published spring range of a pneumatic actuator without a positive positioner is the air pressure required to fully stroke the actuator WITH NO EXTERNAL LOAD. In the extend direction against an opposing load as provided by a damper or a valve, the supply air pressure must be increased above the spring range of the actuator to overcome the spring and the opposing force. In the retract direction against an opposing load as provided by a damper or a valve, the supply air pressure must be decreased below the spring range of the actuator so that the spring can overcome the air pressure and the opposing force. Under constant load conditions, the range of the actuator is offset by the amount of air pressure required to provide close-off of the damper or the valve. Normally open valves (3-way mixing valves with the higher inlet pressure at port "B") or dampers require the supply air pressure to the valve to be greater than the upper end of the spring range to obtain close-off. Normally closed valves (3-way mixing valves with the higher inlet pressure at port "A") or dampers require the supply air pressure to the valve to be less than the lower end of the spring range to obtain close-off. When is "Spring Range Shift" a concern? It is a concern when two or more pneumatic controlled devices should be sequenced from one pneumatic signal without an overlap. An example would be a normally open heating valve and a normally closed cooling valve being sequenced from direct acting thermostat, In this example the spring range of the normally open valve will shift upward and the normally closed valve will shift downward which means the two valves may overlap. Another area of concern is that pneumatic control signal provides proper pressure span to operate the control device and provide "tight" close-off of damper or valve. Examples of limited pressure change would be: pneumatic controllers maximum output which is limited by main air pressure; the low pressure output capability of a pneumatic controller; and electronic to pressure transducer which can have a limited output such as 3 to 15 psig. What can be done to overcome "Spring Range Shift" when sequencing devices? Sequencing can be accomplished in a pneumatic system by selecting actuators with appropriate spring ranges, utilizing positive positioners (AK-42309-500 or N800-0555) or ratio relays with bias adjustment (2378-501) or controllers with separate outputs for each actuator. Positive positioners on damper and valve actuators provide the versatility of start point and span adjustment plus the availability of full pneumatic power for positioning. This is ideal way to provide precision sequencing, since variable loading on the actuator will not effect the sequencing. Biased start ratio relays may be used to provide a method of sequencing by amplifying or shifting the pneumatic signal. For applications involving sequencing a pressure to electric (P.E.) switch with a pneumatic actuator, the P.E. can often be adjusted to operate outside the operating range of the actuator. Sometimes larger actuators will help the sequencing problem. Using full actuator stroke to rotate the damper less than 90 degrees increases the force delivered to the damper and therefore reduces control signal change required to control the actuator. Rotating the damper 60 degrees usually provides almost full flow through the damper. If the actuator has an adjustable start point, adjusting the start points can help prevent sequencing problems. Normally open valves or dampers should have start point adjusted to the minimum and normally closed adjusted to the maximum. Sequencing problems can be eliminated by providing controllers with separate outputs for each actuator and do the sequencing in the controller. What can be done to increase the close-off of a damper or valve actuator due to limited or insufficient pneumatic control pressure to the control device? Proper control and close-off of the control device can be accomplished by selecting actuators with appropriate spring ranges, utilizing positive positioners (AK-42309-500 or N800-0555) or ratio relays with bias adjustment ( 2378-501). Positive positioners on damper and valve actuators provide the versatility of start point and span adjustment plus the availability of full pneumatic power for positioning (0 to main air pressure to the actuator). Biased start ratio relay provide a method of amplifying or shifting the pneumatic signal. Selecting larger actuators will increase close-off pressure. Using full actuator stroke to rotate the damper less than 90 degrees increases the force delivered to the damper. Rotating the damper 60 degrees usually provides almost full flow through the damper. If the actuator has an adjustable start point, proper adjustment of the start points will increase close-off. Normally open valves or dampers should have start point adjusted to the minimum and normally closed adjusted to the maximum. Provide electronic to pneumatic transducers with sufficient input span to obtain maximum or sufficient pneumatic output.

Issue Satchwell MEU 3-port Unit Control Valve is obsolete. Environment Satchwell MEU 3-port Unit Control Valve installations Cause Satchwell MEU 3-port Unit Control Valve requires replacement due to failure. Resolution Satchwell MEU 3-port Unit Control Valve may be replaced by Schneider Electric VZ319 series Unit Control Valve, although dimensional differences may apply. It should be noted that VZ319 series Unit Control Valves are available in both Flat Face and Compression fitting specifications. The latest issue of the Schneider Electric Valves and Actuators Catalogue should therefore be consulted in order to determine the availability of the particular size / kv / fitting combination required. It should also be noted that any Actuator installed on the Satchwell MEU 3-port Unit Control Valve will not be compatible with the replacement Schneider Electric VZ319 3-port Unit Control Valve and that a Schneider Electric MZ20 series Actuator of the appropriate operating voltage / signal type will also be required.

Issue Satchwell ALE series Linear Actuator requires replacement. Environment Satchwell ALE series Linear Actuator installed on Satchwell MJF, MZ, MZF, VJF, VSF, VZ or VZF series Plug and Seat Valve Body.  Actuator type :- ALE series.  Cause Obsolescence of Satchwell ALE series Linear Actuator. Resolution Replace Satchwell ALE series Linear Actuator with S-E M800 Linear Actuator and Linkage Kit :-   Linkage kit to mount a M800 actuator to a Satchwell valve (MZ,MZF, VZ, VZF, VSF and MJF) = L2SV Replace ALE Actuator with M800 + L2SV combined part number 880-0650-000 Replace ALE with Auxilary Switch kit with M800-S2 + L2SV combined part number 880-0651-000 Just linkage kit = 880-0124-000 Just M800 = 880-0310-030 N.B.  Should the Satchwell ALE series Actuator include a wired Auxiliary Switch then the following Accessory should also be installed on the S-E M800 Actuator as appropriate :-  S2 - Two independent 24 volt 4amp AC-1 rated SPDT Auxiliary End Point Switches. (880-0104-000)   Particular care should be taken when selecting an S-E Forta M800 Actuator to replace an existing Satchwell ALE series Actuator. The S-E Forta M800 Actuator may be used to replace an existing Satchwell ALE series Actuator but it should be noted that where an existing Satchwell ALE series Actuator has been connected directly to a Satchwell Controller, an independent Transformer rated to provide the greater level of power required by a single S-E Forta M800 Actuator (50VA) will also be required. (e.g. S-E Transformer Type TR60)   Where an existing Satchwell ALE series Actuator has been connected via an independent Transformer, it is possible that the Transformer may have been rated to provide the level of power required by a single ALE series Actuator (9.5VA) only.   In such circumstances the existing independent Transformer may also require replacement by another independent Transformer, rated to provide the greater level of power required by a single S-E Forta M800 Actuator (50VA) (e.g. S-E Transformer Type TR60) Details of the Schneider Electric M800 Actuator may be viewed here Details of the Schneider Electric TR60 Transformer may be viewed here

Issue How do you set up the VisiSat server for MicroNet or IAC controllers? Environment VisiSat server settings Cause Assistance for correct configuration. Resolution LIB-4-485 is a RS-232 to RS-485 converter to be used with VisiSat for communicating to MicroNet NCP Controllers or Satchnet controllers without the need for a MNMI or MIU respectively. The LIB-4-485 is powered from the communications port of your PC and no external power is required, providing the PC port adheres to the RS-232 specification (we have used successfully with Dell PC’s). The connection to the LAN are:-  TD (A) – To negative (-) communications terminal of controller. TD (B) – To positive (+) communications terminal of controller. GND – Screen connected at LIB card only and not at controller.   VisiSat requires the following settings to be configured in the VisiSat Server. The Server is found minimized next to the clock in the system tray. At the bottom right corner of your desktop, double click the server icon to show the VisiSat Server client. Select settings from the Network Menu Option. The Configure Network Settings window will be displayed as below. Select ‘Serial Port’ as the Transport type, and click the Configure button. 1. The configuration for use with MicroNet controllers needs to be as detailed below. 2. The configuration for use with IAC controllers needs to be as detailed below. Once the correct selection has been made click OK. VisiSat is then ready to use with selected controllers.   The VisiSat Engineering guide contains additional information regarding the VisiSat server Click here to download or view the VisiSat Engineering manual.  

Issue The Drayton Theta YBL1 Valve Body / Actuator assembly is to be replaced. Environment Replacement Drayton Actuator Valve YBL1 Cause The Drayton Theta YBL1 Valve Body / Actuator assembly is obsolete. Resolution OVERVIEW The Drayton Theta YBL1 Valve Body / Actuator assembly is obsolete, and there is no purpose built replacement. The Valve Body was available in 1.1/4", 1.1/2" and 2" B.S.P. sizes and was normally installed as a mixing valve in variable temperature, constant volume, compensated heating circuits. No Valve Body / Actuator assemblies are currently available in these sizes. Details of the YB Valve Body may be viewed here.   VALVE BODY REPLACEMENT To replace the YBL1 Valve Body the following is required:- S-E SatchwellMB Valve Body of appropriate size - MB1552 (1.1/4"), MB1602 (1.1/2"), MB1652 (2") Details of the MB Valve Body may be viewed here.   ACTUATOR REPLACEMENT (6-WIRE INSTALLATION) The YBL1 Actuator normally comprised a 6-wire electrical connection enabling it to be operated by a Theta Potentiometric Controller as follows :-  Terminal M1 – Open signal Terminal M2 – Close signal Terminal M3 – Common  Terminal M4 – 135 ohm Feedback Potentiometer – winding Terminal M5 – 135 ohm Feedback Potentiometer – wiper Terminal M6 – 135 ohm Feedback Potentiometer – winding Where 6 wires are connected to the YBL1 Actuator then the Actuator may be replaced by one or other of the following S-E Actuators :- MD10B-24 MD20B-24 (if MD10B-24 not available) Details of the MD10B-24 Actuator may be viewed here. Details of the MD20B-24 Actuator may be viewed here.   LINKAGE KIT A Linkage Kit will also be required in order to enable the MD Actuator to be mounted on the MB Valve Body. Linkage Kit LMD/AR-MB (914-1071-000) Details of the LMD/AR-MB Linkage Kit may be viewed here   IMPORTANT NOTE In such 6-wire installations not only will the YBL1 Valve / Actuator assembly need to be replaced but the associated Theta Potentiometric Controller and its Sensors will also need to be replaced.   CONTROLLER REPLACEMENT The Theta Potentiometric Controller may be replaced by the S-E Satchwell CSC5252 or the CSC5352 Compensator Controller. Details of the CSC Controllers may be viewed here.   SENSOR REPLACEMENT Theta 3-wire Temperature Sensors may be replaced by S-E Satchwell 2-wire Temperature Sensors compatible with the S-E Satchwell CSC 5252 or CSC5352 Compensator Controllers selected from the following as appropriate. Outside Air Temperature Sensor (STO 600) Contact Temperature Sensor (STC 600), or alternatively :- Immersion Temperature Sensor (STP 660) + Sensor Pocket Adaptor (DWA 0001) Room Temperature Sensor (STR 600) – OPTIONAL ONLY Details of the STO 600 Outside Air Temperature Sensor may be viewed here. Details of the STC 600 Contact Temperature Sensor may be viewed here. Details of the STP 660 Water Temperature Sensor may be viewed here. Details of the DWA 0001 Sensor Pocket Adaptor may be viewed here. Details of the STR 600 Room Temperature Sensor may be viewed here.   N.B. ACTUATOR REPLACEMENT (3-WIRE INSTALLATION) Should only 3 wires be connected to a YBL1 Actuator then the Actuator may be replaced by one or other of the following S-E Actuators :- MD10B-24 MD20B-24 (if MD10B-24 not available) Details of the MD10B-24 Actuator may be viewed here. Details of the MD20B-24 Actuator may be viewed here.   LINKAGE KIT A Linkage Kit will also be required in order to enable the MD Actuator to be mounted on the MB Valve Body. Linkage Kit LMD/AR-MB (914-1071-000) Details of the LMD/AR-MB Linkage Kit may be viewed here In such 3-wire installations the YBL1 Valve / Actuator assembly only will need to be replaced, while any associated Controller and Sensors may be retained.

Issue How to be redundant with your intelligent Building Management System (iBMS) Product Line Andover Continuum,EcoStruxure Building Operation,Field Devices,Other,Satchwell Sigma,Security Expert,TAC INET Environment Existing intelligent Building Management System Open Mind High Avalibility Solutions everRun MX Cause In engineering, redundancy is the duplication of critical components of a system with the intention of increasing reliability of the system. To be redundant with an intelligent Building Management System (iBMS) would take on two possibilities. 1. Have an alarm on critical points alerting personnel who move into action quickly replacing control boards or devices in the event of failure. 2. Have secondary backup controllers which upon failure, which are used to control devices resuming functionality. This is accomplished through programming the BAS with event sequences triggered from alarms or flags noting the failure. Redundancy capabilities and feasibility is site specific. Ascertaining failure in boards, points, or devices is crucial to creating secondary measure to keep seamless processes going and resume with functions.   Error detection and correction with maintenance is often the best practice for preventing failure. Worn components is the leading cause of failure, followed by lack of planning and consideration in the protection of electrical components through power surges or failures.   For the database, backups including automated backups for MSDE, SQL Express, and Full SQL are available. For further information on database backups and options, take a look at Microsoft SQL Management Studio. For Host Computer backups, look at adding a secondary computer which replicates the database and can capture transactions and messages should a failure with the primary host computer take place. Also work with the local IT department to keep machines up to date, safe, and clean of 3rd party applications which may interfere with integrity.   Schneider Electric’s building management systems are designed such that building control continues even when controller to server communication is disrupted. The BMS server is home to a database of alarm and historical data, as well as system parameters and programs. When a server or its network connection fails, the collection of data from building controllers halts until the problem is resolved. For data critical applications, this solution provides an environment capable of preventing the data loss that results from these types of failures.  Although we do support its use with StruxureWare Building Operation, Security Expert, Continuum, I/NET, Vista, Sigma, and I/A Series as a disaster recovery solution, we do not provide direct support for EverRun. Resolution For Open Mind High Availability Solutions guide please look at the following link; Open Mind High Availability Solution guide For everRun MX solution guide please look at the following link; everRun MX guide  

Issue Unable to configure the schedule in SE8000 series thermostat. Product Line EcoStruxure Building Expert, Field Devices Environment SE8000 Cause The system is not following building occupancy and operation as needed Resolution Tap and hold the top middle of the screen and tap on lower right arrow of page 1/2 setup. There are seven different schedule setting screens, one for each day of the week. Each day can have different scheduled events. Options The options settings allow the Room Controller to function in Occupied or Unoccupied. Occupancy Command Local occupancy: occupancy is determined by local PIR or schedule, as configured under Occ. Source from the configuration menu. Schedule Type 7 days: Independent scheduling for each day 5+1+1 days: Weekdays scheduling and Independent Weekend scheduling for Saturday and Sunday 5+2 days: Weekdays scheduling and Weekend scheduling

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 When defining configuration on SE7300 part no, your choice is between "0" (override) and "5" (possibility to change between °C and °F in interface). Environment SE7300 Cause its not possible to have both override and °C/°F feature Resolution When defining the part number, you will have to choose. The override feature is usually the preferred choice in industrial applications, while the °C/°F feature is used for Hotels and similar, where users are given the possibility to change unit of desired temperature.

Issue Please define the difference between the V211 and V211T Environment V211 V211T Cause There are 2 different valves with similar characteristics, what differences are there, and why should I choose one or the other? Resolution V211 is equipped with flanged connections, while the V211T has internal threaded connections.

Issue The data sheet states 2 different power consumptions: Power consumption: average 6 VA Transformer sizing: 30 VA Which one should be used for calculating power supply? Environment Forta Cause There are different figures specified in the documentation for the Forta series actuator. Resolution Average consumption is 6VA, but the peak consumption is 30VA, and this is just before the valve reaches the fully closed position.

Issue Safety information can be requested when distributing thermostats, particularly via airplane. Environment Room thermostat Cause Not all documentation is available to download. Resolution TC300 3AxL Series Low Voltage Certificate of Conformity TC300 3AxL Series Electromagnetic Compatibility Certificate of Conformity TC300 3AxLM-DLS-DLMS Series Low Voltage Certificate of Conformity TC300 3AxLM-DLS-DLMS Series Electromagnetic Compatibility Certificate of Conformity Battery material safety data sheet. Identification and classification report for air transport of goods.  

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 TC300 Series Networking Digital Fan Coil Thermostat - Modbus Protocol Documentation Product Line Field Devices Environment TC300 Series Digital Fan Coil Thermostats Cause Modbus protocol information is needed in order to perform Modbus integration to the TC300 Series Digital Fan Coil Thermostats. Resolution The TC303 thermostats come with the option of Modbus communication for both 2- and 4-pipe configurations. Modbus is an open, widespread and well established serial communication protocol used within building automation. The support of Modbus communication allows simple integration of the TC303 thermostats to a building management system, using standard Modbus serial communications. The following models provide support for Modbus connectivity: TC303-3A2LM TC303-3A4LM TC303-3A2DLMS TC303-3A4DLMS TC303-3A2DPMS TC303-3A4DPMS The TC303 thermostats communicate as a Modbus RTU slave device over a serial RS-485 connection, allowing for the transfer of real time data. Thermostats manufactured from November 2018 (2018-W44-4)* onward can be configured to communicate at 9600 (default) or 4800 bps. The communication parameters for TC-300 thermostats manufactured prior to this date cannot be adjusted and are fixed as follows: 4800bps Baud Rate 8 Data Bits Odd Parity 1 Stop Bit The actual Modbus address of the thermostat can be set for each individual device on the RS-485 network. The address is defined via the parameter menu on the thermostat itself. The address range available is from 01 to 32 and is defined under menu item 04 of the parameter settings. For full details on this, other parameter setting options available and Modbus communications parameters/registers, please refer to the Installation Instructions.  Connection to the RS-485 network is made via dedicated terminals on the back of the thermostat and marked A (+) and B (-).   TC300 Series Digital Fan Coil Thermostat Installation Instructions TC300 Series Modulating Fan Coil Thermostat Installation Instructions   * Note - The Installation Instructions have not been updated to include the information that thermostats manufactured from November 2018 (2018-W44-4) onward can be configured to communicate at 9600 (default) or 4800 bps. 

Issue A calibration certificate is sometimes requested by the end customer Environment Schneider Electric sensor portfolio Cause To ensure that a sensor is keeping measurement values within specification, a certificate is sometimes requested by the end customer. Resolution If a calibration certificate is requested, this must be notified to the Orders dept when the order is placed. The ordered sensors are then tested again according to the specifications and delivered with a calibration certificate. This process may lead to additional costs and a slightly longer delivery time. Calibration certificates cannot be produced after the products are delivered. Download the Sensor Calibration Certificate Order Form

Issue Valve Flange Tables Product Line Field Devices Environment Valves Flanged Gaskets Bolt holes PN rating PCD Cause What flanged tables are used with what valves? Resolution The PN of the valve and the valve size will indicate the diameter, PCD (Pitch Circle Diameter), number of bolt hole/size and bolt size and therefore size of flange and gasket. Download the flange tables for BS EN 1092 (metric), ANSI  (ASA) and BS10 or here for an alternative flange table document.