Issue S-E MD20 Actuator Clamp Drive Shaft Clip fouling LMD/AR-MBF Linkage Kit Mounting Platform inhibits Actuator rotation. Environment S-E MD20 Actuator installed on Satchwell MBF Valve Body. Cause S-E MD20 Actuator Clamp Drive Shaft Clip cut out undersized. Resolution Measure diameter of S-E MD20 Actuator Clamp Drive Shaft Clip cut out. S-E MD20 Actuator Clamp Drive Shaft Clip cut out diameter should be 47mm Replace S-E MD20 Actuator Clamp Drive Shaft Clip with another having modified cut out if dimension less than 47mm. The diameter of the cut out in the original LMD/AR-MBF Linkage Kit Mounting Platform was such that the MD20 Actuator Drive Shaft Clip could be prevented from turning freely with the Drive Shaft. The LMD/AR-MBF Mounting Platform was modified in August 2007, when the diameter of the cut out in the Mounting Platform was increased to 47mm, thus overcoming the fouling of the MD20 Actuator Drive Shaft Clip. It is possible to ascertain whether the LMD/AR-MBF Mounting Platform in use is of the original or modified design by measuring the diameter of the cut out in the Mounting Platform If the diameter of the LMD/AR-MBF Mounting Platform cut out is less than 47mm, then the MD20 Actuator Drive Shaft Clip will foul the LMD/AR-MBF Mounting Platform. The MD20 Actuator Drive Shaft Clip however is retained in a groove within the Drive Shaft and whilst the Clip may be prevented from turning freely with the Drive Shaft, the turning of the Drive Shaft itself will not be impeded.

Issue TAC Valve Body published Cv values may differ markedly to equivalent Kv values.  Environment TAC Valve Body published data utilised when sizing and selecting S-E / TAC Control Valves. Cause TAC Valve Body published Cv values based on flow rates measured in U.S. Gallons per minute rather that U.K.Gallons per minute., Resolution Check published Cv value relative to published Kv value stated for TAC Valve Body. If published Cv value is within 3% of published Kv value then Cv value may be used for sizing / selection of Valve Body. If published Cv value is up to 17% higher than Kv value then Cv value should not be used for sizing / selection of Valve Body. Cv values published in older TAC Valve Body Data Sheets should be checked before considering use in U.K. valve sizing formula. Numerous TAC Valve Body Data Sheets show that for a particular Kv value, the equivalent Cv value is approximately 17% higher than the Kv value. For example, where TAC Valve Body Data Sheet shows Kv = 10, then equivalent Cv = 11.7 or in other words Cv = Kv x 1.17 Cv values published in Satchwell Valve Body Data Sheets however show the relationship between Kv and Cv as:- Kv = Cv x 1.03 or in other words Cv = Kv x 0.97 This difference in equivalent values is due to Cv values stated in some TAC Data Sheets being based on flow rates measured in U.S. Gallons per minute, while those Cv values stated in Satchwell Data Sheets however are based on flow rates measured in U.K. Gallons per minute. If flow rates are measured in U.S. Gallons per minute, then the following conversion factor applies :- Kv = Cv x 0.86, as the U.S. Gallon is smaller than the U.K. Gallon. Taking published TAC Valve Body Data Sheet information therefore, where the Cv value is stated as 11.7 and the Kv value is stated as 10, confirms that the conversion factor Kv = Cv x 0.86 ( 11.7 x 0.86 = 10 ) has been applied, further confirming that published Cv values are in fact based on U.S. Gallons and not U.K. Gallons. Consequences of this are as follows : - If it is assumed that the published Cv value is a U.K. Cv value, when in fact it is a U.S. Cv value, and the published Cv value is then used as a basis for valve sizing and selection, then this will result in a smaller Valve Body being selected than would otherwise be the case. Consequently, once installed, the selected Valve Body will produce a much higher pressure drop and correspondingly higher authority for a given flow rate than would otherwise have been the case. In practice the installation of an undersized Control Valve can result in starvation of flow to the item of plant being controlled and the potentially costly replacement of the Valve Body for another of a larger size. Similarly, the installation of an undersized Control Valve will result in a greater pressure drop being applied to the hydraulic circuit than may be desirable and could lead to an adverse effect on the performance of the associated circulating pump. It is important to ensure therefore that where both Kv and Cv values are published for a given Valve Body, the Kv value is utilised when undertaking valve sizing and selection.  This should ensure that a Valve Body of the correct size is selected. Measures are currently in place to actively remove all references to Cv values from both S-E / TAC Data Sheets and all future editions of the S-E HVAC Valves and Actuators Catalogue.

Issue Actuator not Tracking Control Signal. Environment Actuator typically controlling a damper or valve Cause This problem is usually traced to one of three common problems: Insufficient power to initialize actuator. Incorrect control signal. Actuator is bound. Resolution Verify the associated troubleshooting/resolutions with reference to the numbered causes above: Insufficient power to initialize actuator. Verify transformer capacity is above required power up inrush load. To determine if this is the problem, check published VA requirement. When multiple devices are powered from a common transformer, disconnect all other devices from transformer output or use isolated transformer. Incorrect control signal. Verify correct control signal is selected for the actuator. Verify actuator operation by using a Loop Calibrator such as the Fluke 789 to simulate the control signal. If the actuator tracks the simulated signal, the problem is at the controller or in the wiring. Actuator is bound. Verify actuator motion matches the controlled device. Is the actuator trying to close a valve or damper that is already closed?

Issue TS-57XX-85X and TS-67XX-85X 10K thermistor with 11 K shunt resistance table Environment Unknown Environment Cause Unknown Cause Resolution Temp (°C) Temp (°F) Ohms (11K shunt)   -40.0°     -40.0°   10,517   -39.0°     -38.2°   10,489   -38.0°     -36.4°   10,460   -37.0°     -34.6°   10,430   -36.0°     -32.8°   10,397   -35.0°     -31.0°   10,364   -34.0°     -29.2°   10,329   -33.0°     -27.4°   10,292   -32.0°     -25.6°   10,254   -31.0°     -23.8°   10,214   -30.0°     -22.0°   10,172   -29.0°     -20.2°   10,129   -28.0°     -18.4°   10,084   -27.0°     -16.6°   10,037   -26.0°     -14.8°   9,988   -25.0°     -13.0°   9,938   -24.0°     -11.2°   9,885   -23.0°     -9.4°   9,830   -22.0°     -7.6°   9,773   -21.0°     -5.8°   9,715   -20.0°     -4.0°   9,654   -19.0°     -2.2°   9,592   -18.0°     -0.4°   9,527   -17.0°     1.4°   9,460   -16.0°     3.2°   9,391   -15.0°     5.0°   9,320   -14.0°     6.8°   9,247   -13.0°     8.6°   9,171   -12.0°     10.4°   9,094   -11.0°     12.2°   9,015   -10.0°     14.0°   8,933   -9.0°     15.8°   8,850   -8.0°     17.6°   8,764   -7.0°     19.4°   8,677   -6.0°     21.2°   8,587   -5.0°     23.0°   8,495   -4.0°     24.8°   8,402   -3.0°     26.6°   8,307   -2.0°     28.4°   8,210   -1.0°     30.2°   8,111   0.0°     32.0°   8,012   1.0°     33.8°   7,910   2.0°     35.6°   7,807   3.0°     37.4°   7,702   4.0°     39.2°   7,595   5.0°     41.0°   7,489   6.0°     42.8°   7,380   7.0°     44.6°   7,270   8.0°     46.4°   7,160   9.0°     48.2°   7,048   10.0°     50.0°   6,937   11.0°     51.8°   6,825   12.0°     53.6°   6,711   13.0°     55.4°   6,597   14.0°     57.2°   6,483   15.0°     59.0°   6,369   16.0°     60.8°   6,255   17.0°     62.6°   6,141   18.0°     64.4°   6,027   19.0°     66.2°   5,912   20.0°     68.0°   5,798   21.0°     69.8°   5,686   22.0°     71.6°   5,572   23.0°     73.4°   5,460   24.0°     75.2°   5,348   25.0°     77.0°   5,238   26.0°     78.8°   5,127   27.0°     80.6°   5,018   28.0°     82.4°   4,909   29.0°     84.2°   4,802   30.0°     86.0°   4,696   31.0°     87.8°   4,591   32.0°     89.6°   4,487   33.0°     91.4°   4,385   34.0°     93.2°   4,284   35.0°     95.0°   4,184   36.0°     96.8°   4,086   37.0°     98.6°   3,989   38.0°     100.4°   3,894   39.0°     102.2°   3,800   40.0°     104.0°   3,707   41.0°     105.8°   3,617   42.0°     107.6°   3,528   43.0°     109.4°   3,441   44.0°     111.2°   3,355   45.0°     113.0°   3,271   46.0°     114.8°   3,189   47.0°     116.6°   3,107   48.0°     118.4°   3,028   49.0°     120.2°   2,951   50.0°     122.0°   2,875   51.0°     123.8°   2,801   52.0°     125.6°   2,729   53.0°     127.4°   2,658   54.0°     129.2°   2,588   55.0°     131.0°   2,521   56.0°     132.8°   2,455   57.0°     134.6°   2,390   58.0°     136.4°   2,327   59.0°     138.2°   2,266   60.0°     140.0°   2,206   61.0°     141.8°   2,148   62.0°     143.6°   2,091   63.0°     145.4°   2,036   64.0°     147.2°   1,982   65.0°     149.0°   1,929   66.0°     150.8°   1,878   67.0°     152.6°   1,827   68.0°     154.4°   1,779   69.0°     156.2°   1,732   70.0°     158.0°   1,685   71.0°     159.8°   1,640   72.0°     161.6°   1,597   73.0°     163.4°   1,554   74.0°     165.2°   1,513   75.0°     167.0°   1,472   76.0°     168.8°   1,433   77.0°     170.6°   1,395   78.0°     172.4°   1,359   79.0°     174.2°   1,322   80.0°     176.0°   1,287   81.0°     177.8°   1,253   82.0°     179.6°   1,220   83.0°     181.4°   1,188   84.0°     183.2°   1,157   85.0°     185.0°   1,126   86.0°     186.8°   1,097   87.0°     188.6°   1,068   88.0°     190.4°   1,040   89.0°     192.2°   1,013   90.0°     194.0°   987   91.0°     195.8°   961   92.0°     197.6°   936   93.0°     199.4°   912   94.0°     201.2°   888   95.0°     203.0°   865   96.0°     204.8°   843   97.0°     206.6°   821   98.0°     208.4°   800   99.0°     210.2°   780   100.0°     212.0°   760   101.0°     213.8°   741   102.0°     215.6°   722   103.0°     217.4°   704   104.0°     219.2°   686   105.0°     221.0°   669   106.0°     222.8°   652   107.0°     224.6°   636   108.0°     226.4°   620   109.0°     228.2°   605   110.0°     230.0°   590   111.0°     231.8°   576   112.0°     233.6°   561   113.0°     235.4°   548   114.0°     237.2°   534   115.0°     239.0°   521   116.0°     240.8°   509   117.0°     242.6°   496   118.0°     244.4°   484   119.0°     246.2°   473   120.0°     248.0°   462   121.0°     249.8°   451

Issue NEMA 4 classed DuraDrive actuators cannot be used with the VB-7323 diverting valves Environment NEMA 4 DuraDrive actuators VB-7323 diverting valves Cause Which NEMA 4 classed DuraDrive actuators can be used with the VB-7323 diverting valves Resolution There are no NEMA 4 solutions available. Consider using the MA-318 or 481 for two position applications. No modulating spring return options are available but non-spring return gear train actuators with AV-391 (150 pound plungers) can be used when the AM-363 gasket is added.

Issue Satchwell ALX series Linear Actuator requires replacement. Environment Satchwell ALX series Linear Actuator installed on Satchwell MJF, MZ, MZF, VJF, VSF, VZ or VZF series Plug and Seat Valve Body. Cause Obsolescence of Satchwell ALX series Linear Actuator. Resolution Replace Satchwell ALX series Linear Actuator with MV15B-24 Linear Actuator and Linkage Kit :-  ALX = MV15B-24 + L7SV (880-0662-000). Note: this part no. is for both actuator and linkage kit.  N.B.  Should the Satchwell ALX series Actuator include a wired Auxiliary Switch then the following Accessory should also be installed on the MV15B-24 Actuator as appropriate :-  S2 – MV15B = Two independent 250 volt 10 amp / 3 amp rated SPDT Auxiliary End Point Switches.    Particular care should be taken when selecting an S-E Forta MV15B-24 Actuator to replace an existing Satchwell ALX series Actuator. The S-E MV15B-24 Actuator may be used to replace an existing Satchwell ALX series Actuator but it should be noted that where an existing Satchwell ALX 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 MV15B -24 Actuator (12VA) will also be required. (e.g. S-E Transformer Type TR32)  Where an existing Satchwell ALX 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 ALX series Actuator (3.5VA) 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 MV15B-24 Actuator (12VA) (e.g. S-E Transformer Type TR32)

Issue Satchwell ALM series Linear Actuator requires replacement. Environment Satchwell ALM series Linear Actuator installed on Satchwell MJF, MZ, MZF, VJF, VSF, VZ or VZF Series Plug and Seat Valve Body. Actuator type :- ALM series Cause Obsolescence of Satchwell ALM series Linear Actuator. Resolution Replace Satchwell ALM series Linear Actuator with MV15B-230 Linear Actuator and Linkage Kit :-  ALM = MV15B-230 + L7SV (880-0126-000) Linkage Kit N.B.  Should the Satchwell ALM series Actuator include a wired Auxiliary Switch then the following Accessory should also be installed on the MV15B-230 Actuator as appropriate :-  S2 – MV15B = Two independent 250 volt 10 amp / 3 amp rated SPDT Auxiliary End Point Switches.

Issue Satchwell AR Series 1 or AR Series 2 Rotary Actuator requires replacement Environment Satchwell AR Series 1 or AR Series 2 Rotary Actuators installed on Satchwell MB Series or MBF Series Rotary Shoe Valve Bodies. Satchwell ARE ARM & ARX Series 1 and Series 2 Rotary Actuators Cause Obsolescence of Satchwell AR Series 1 or AR Series 2 Rotary Actuators Resolution Replace Satchwell AR Series 1 or AR Series 2 Rotary Actuators with appropriate S-E MD Series Rotary Actuators and wire as follows: Satchwell AR Series 1 or AR Series 2 Rotary Actuators installed on Satchwell MB Series Screwed Rotary Shoe Valve Bodies ARE ARE Series 1 & 2 Wire Colour BLUE  =  MD10A-24 or MD20A-24 Wire Number 2 ARE Series 1 & 2 Wire Colour RED  =  MD10A-24 or MD20A-24  Wire Number 3 ARE Series 1 & 2 Wire Colour BLACK  =  MD10A-24 or MD20A-24  Wire Number 1 ARE Series 2        Wire Colour WHITE  =  MD10A-24 or MD20A-24  Wire Number 5  ARX ARX Series 1 & 2 Wire Colour RED  =  MD10B-24 or MD20B-24 Wire Number 3 ARX Series 1 & 2 Wire Colour BLUE  =  MD10B-24 or MD20B-24  Wire Number 2 ARX Series 1 & 2 Wire Colour BLACK =  MD10B-24 or MD20B-24  Wire Number 1  ARM – UP TO MARCH 2006 ARM Series 1 & 2 Wire Colour RED  =  MD10B-230 or MD20B-230 Wire Number 3 ARM Series 1 & 2 Wire Colour BLUE  =  MD10B-230 or MD20B-230 Wire Number 2 ARM Series 1 & 2 Wire Colour BLACK  =  MD10B-23 or MD20B-230 Wire Number 1  ARM – SINCE MARCH 2006 ARM Series 1 & 2 Wire Colour BROWN  =  MD10B-230 or MD20B-230 Wire Number 3 ARM Series 1 & 2 Wire Colour BLACK  =  MD10B-230 or MD20B-230 Wire Number 2 ARM Series 1 & 2 Wire Colour BLUE  =  MD10B-230 or MD20B-230 Wire Number 1  Note: Should the Satchwell AR Series Actuator include a wired Auxiliary Switch then the following Accessory should also be wired on the S-E MD Actuator as follows: MD – S1  One independent SPDT 1 mA…3(0.5) A, 250 V AC Auxiliary Switch  AR COMMON Wire Colour ORANGE  =  MD-S1 COMMON Wire Number S1 AR N/O contact Wire Colour BROWN  =  MD-S1 N/O contact Wire Number S3      AR N/C contact Wire Colour WHITE  =  MD-S1 N/C contact Wire Number S2  MD – S2  Two independent SPDT 1 mA…3(0.5) A, 250 V AC Auxiliary Switches  AR COMMON Wire Colour ORANGE  =  MD-S2 COMMON Wire Number S1 AR N/O contact Wire Colour BROWN  =  MD-S2 N/O contact Wire Number S3 AR N/C contact Wire Colour WHITE  =  MD-S2 N/C contact Wire Number S2  AR COMMON Wire Colour BLACK  =  MD-S2 COMMON Wire Number S4 AR N/O contact Wire Colour RED  =  MD-S2 N/O contact Wire Number S6 AR N/C contact Wire Colour BLUE  =  MD-S2 N/C contact Wire Number S5   Satchwell AR Series 1 or AR Series 2 Rotary Actuators installed on Satchwell MBF Series Flanged Rotary Shoe Valve Bodies ARE ARE Series 1 & 2 Wire Colour BLUE  =  MD20A-24 Wire Number 2 ARE Series 1 & 2 Wire Colour RED  =  MD20A-24 Wire Number 3 ARE Series 1 & 2 Wire Colour BLACK  =  MD20A-24 Wire Number 1 ARE Series 2        Wire Colour WHITE  =  MD20A-24 Wire Number 5  ARX ARX Series 1 & 2 Wire Colour RED  =  MD20B-24 Wire Number 3 ARX Series 1 & 2 Wire Colour BLUE  =  MD20B-24 Wire Number 2 ARX Series 1 & 2 Wire Colour BLACK =  MD20B-24 Wire Number 1  ARM – UP TO MARCH 2006 ARM Series 1 & 2 Wire Colour RED  =  MD20B-230 Wire Number 3 ARM Series 1 & 2 Wire Colour BLUE  =  MD20B-230 Wire Number 2 ARM Series 1 & 2 Wire Colour BLACK  =  MD20B-230 Wire Number 1  ARM – SINCE MARCH 2006 ARM Series 1 & 2 Wire Colour BROWN  =  MD20B-230 Wire Number 3 ARM Series 1 & 2 Wire Colour BLACK  =  MD20B-230 Wire Number 2 ARM Series 1 & 2 Wire Colour BLUE  =  MD20B-230 Wire Number 1  Note: Should the Satchwell AR Series Actuator include a wired Auxiliary Switch then the following Accessory should also be wired on the S-E MD Actuator as follows: MD – S1  One independent SPDT 1 mA…3(0.5) A, 250 V AC Auxiliary Switch  AR COMMON Wire Colour ORANGE  =  MD-S1 COMMON Wire Number S1 AR N/O contact Wire Colour BROWN  =  MD-S1 N/O contact Wire Number S3 AR N/C contact Wire Colour WHITE  =  MD-S1 N/C contact Wire Number S2  MD – S2  Two independent SPDT 1 mA…3(0.5) A, 250 V AC Auxiliary Switches  AR COMMON Wire Colour ORANGE  =  MD-S2 COMMON Wire Number S1 AR N/O contact Wire Colour BROWN  =  MD-S2 N/O contact Wire Number S3 AR N/C contact Wire Colour WHITE  =  MD-S2 N/C contact Wire Number S2  AR COMMON Wire Colour BLACK  =  MD-S2 COMMON Wire Number S4 AR N/O contact Wire Colour RED  =  MD-S2 N/O contact Wire Number S6 AR N/C contact Wire Colour BLUE  =  MD-S2 N/C contact Wire Number S5

Issue Need to replace Digital Clock for SVT4251 or CSC2726 and CSC2727 Controller. Environment SVT4251  CSC2726 CSC2727 Cause Faulty Clock Resolution Replacement Digital Clock for SVT4251 or CSC2726 and CSC2727 Controller is part number 561-9-261

Issue DC1100 / DC1400 Boiler output does not energize during HWS time schedule ON periods Environment DC1100 / DC1400 Discrete Controller installations. Cause DC1100 / DC1400 HWS time schedule is not Boiler Linked. Resolution Please check the catalog for current equipment Check Hot Water Link Option is set to Boiler Linked by following Controller access procedure :- Override Setting Switch :- select SET position. Display Screen / Navigation Buttons :- select parameters SYSTEMS MENU / ALTER SETTINGS / ENTER PASS No. (0112) HOT WATER / LINK OPTION Check LINK OPTION setting If LINK OPTION is set to INDEPENDENT then amend to BOILER LINKED If LINK OPTION is set to BOILER LINKED then PUMP RUN ON may be active If PUMP RUN ON  is active then Boiler outputs will be disabled until PUMP RUN time expires To amend PUMP RUN ON time :- select parameters SYSTEMS MENU / ALTER SETTINGS / ENTER PASS No. (0112) COMPENSATOR / SET-UP MENU / PUMP RUN-ON Amend Pump Run-On time period to 1 MINUTE and observe BOILER No.1 LED status should change from OFF to ON DC1100 / DC1400 Boiler No. 1 output (Terminal 10) should now be energised.

Issue SVT Optimiser Controller does not enable the controlled space to recover to the required day temperature after an unoccupied period during which the inside air temperature has fallen to 12°C. Environment SVT4201 Optimiser Controller fitted with Analogue Time Switch. SVT4251 Optimiser Controller fitted with Digital Time Switch. Cause SVT Optimiser Controller Time Switch settings do not allow for selected Design Preheat Hours (DPH) Resolution SVT Optimiser Controller Time Switch settings should allow for selected Design Preheat Hours (DPH) SVT Optimiser Controller Time Switch settings should be carried out as follows :- Set Td to "Day" temperature required during occupancy. Set Tn to minimum "Night" temperature required during unoccupied periods. Set DPH to design preheat time. DPH is the maximum time required in order to enable the controlled space to recover to the required day temperature after an unoccupied period during which the inside air temperature has fallen to 12 deg. C. Select the approximate time in whole hours on the rotary switch (1 to 5 hours) Fine trim +/- 1/2 hour on the associated setting potentiometer. Note.  ALL "ON" times must be set earlier than the start of occupancy by the selected pre-heat time (DPH) set at (3) above. Example : DPH = 2 hours Occupancy time = 8.00 a.m. Set Time Switch "ON" time to 6.00 a.m. Setting the Time Switch "ON" time to 6.00 a.m. will enable the SVT Optimiser Controller to switch the plant ON at any time between 6.00 a.m. and 8.00 a.m. depending on the heating loss experienced in the controlled space during the preceding plant OFF period. N.B. The setting method detailed in the example above applies equally to both SVT4201 Analogue Time Switch and SVT4251 Digital Time Switch versions of the SVT Optimiser Controller.

Issue Need to replace Analogue Timeswitch for Satchwell SVT4201, CSC 1776, CSC 1777, CSC2776 or CSC2777 Controller. Environment SVT4201 CSC1776 CSC1777 CSC2776 CSC2777 Analogue Timeswitch. Cause Faulty Timeswitch requires replacement. Resolution Replacement Analogue Timeswitch for Satchwell SVT4201, CSC1776, CSC 1777, CSC2776 or CSC2777 Controller is part number 561-9-260.

Issue The word TEST is displayed on the Liquid Crystal Display screen of a Satchwell Climatronic Controller when first powered up during initial installation preventing it from being commissioned. Environment Satchwell Climatronic CSC5252 CSC5352 CXR5805 CXT5605 CZT5305  Controller Display TEST LCD Screen Cause The cause of the word TEST being displayed on the Liquid Crystal Display screen of a Satchwell Climatronic Controller when first powered up during initial installation and preventing it from being commissioned is normally due to a micro processor programming error occurring during the course of production. Resolution There is no field remedy that can be applied to a Climatronic Controller displaying the word TEST on the Liquid Crystal Display screen that will enable it to be commissioned successfully. The Controller should therefore be returned to the vendor for replacement under the terms and conditions of the warranty applicable at the time of purchase.