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- Page 1 IM-P486-11 TES Issue 2 CSM-K Control Unit for the control of indirect steam generator systems Installation and Maintenance Instructions CSM-K Control Unit for the control of indirect steam generator systems © Copyright 2025 IM-P486-11 TES Issue 2 Printed in GB...
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Page 2: Table Of Contents
Manual control of the automatic blowdown valve Automatic mode Pressure control - Setting of the desired value (set-point) Level control Bottom blowdown control General considerations in automatic operation CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... - Page 3 Alarms and blocks Configuration 1. Parameters not protected by a password Actions of the level controller (ON-OFF control excluded) 2. Parameters protected by a password Repairs CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
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Page 4: Safety Information
Determine the correct installation situation and direction of fluid flow. iv) Spirax Sarco products are not intended to withstand external stresses that may be induced by any system to which they are fitted. It is the responsibility of the installer to consider these stresses and take adequate precautions to minimise them. -
Page 5: Pressure Systems
1.10 Tools and consumables Before starting work ensure that you have suitable tools and / or consumables available. Use only genuine Spirax Sarco replacement parts. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... -
Page 6: Protective Clothing
Many products are not self-draining. Take due care when dismantling or removing the product from an installation (refer to ‘Maintenance instructions’). Ensure that all electrical supplies are isolated prior to commencing maintenance. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... -
Page 7: Returning Products
Where no additional information is provided on the Spirax Sarco product compliance web page, this product may be safely recycled and/or disposed providing due care is taken. Always check your local recycling and disposal regulations. -
Page 8: General Information
This manual is intended to be as complete and up to date as possible. Spirax Sarco reserves the right to update it at any time and without obligation to notify product owners of such changes. -
Page 9: Warnings
All procedures for the connection of main power supplies have to be performed by trained and qualified electrical personnel. The PLC unit for the control of Spirax Sarco steam generators are designed to be installed in covered locations, unless otherwise specified by the customer. -
Page 10: Control Unit
3. Control unit Description CSM-K control and safety unit is a PLC type intelligent equipment designed to start-up, control and operate indirect steam generation systems, either in local mode or by ultimate means of a remote system (DCS / BMS). - Page 11 This power disconnect device is equipped with a door locking handle that breaks the three phases of the input voltage and allows to open the cabinet door only when it is in the 'OFF' position. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
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Page 12: Inside Cabinet
Fused terminal to protect solenoid valve for water control. Fused terminal to protect solenoid valve for bottom blowdown system control. BC3100 (optional) TDS control. (optional) remote switch for pump control. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... -
Page 13: Control Features
4. Control features The CSM-K control unit is a PLC based unit designed to provide control of: Pressure. Water level. Discharge blowdown where applicable. and operation of: Blowdown function where applicable. All alarm limits of Spirax Sarco indirect steam generators. -
Page 14: External Connections
Minimum –20 °C to a Maximum +55 °C Relative Humidity (RH): from 5% to 95% non-condensing LCD display with energy saving dimmer function: 4 lines each with 16 characters CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... -
Page 15: Display And Keyboard
In automatic operation mode the STOP key is pressed to stop the active STOP key functions. RUN LED is switched off. Continued on next page CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... - Page 16 In automatic operation mode this key is pressed to return from the screen displaying the values of the variables (pressure and level) to the set point programming screen. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
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Page 17: Initial Screen
Screen 1 By pressing the key, Screen 2 or 3 will be displayed. Screen 2 Screen 2 Horizontal steam generator (CSM-K) Vertical steam generator (CSM-H) CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... - Page 18 Then press the OK key to confirm and store the choice and enter the selected mode. Screen 3 CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
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Page 19: Manual Mode
Screen 5 Screen 4 Pressure control mode Feedwater control mode Screen 6 Screen 7 Bottom blowdown control mode Conductivity control mode (if applicable) (if applicable) CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... -
Page 20: General Considerations In Manual Mode With Manual Mode Selected
By pressing the emergency push-button all alarms will be displayed. Pressing the same push-button again, Screen 4 (feedwater manual control) will be displayed to allow the selection of the function to be activated by pressing the keys. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... -
Page 21: Manual Control Of The Feedwater
If the selector is turned to position '1' (Automatic control) an alarm status is obtained as displayed on Screen 9. In this situation switch the selector to position '0' to reach the condition displayed on Screen 12. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... - Page 22 < > In order to resume the operation of level control press the (-) and (+) or <OFF ON> keys. Screen 13 Screen 14 CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
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Page 23: Manual Control Of The Pressure
Screen 8. In this situation change the selector switch to position '0' to reach the condition displayed on Screen 8. Screen 8 CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... - Page 24 Then press the external manual reset push-button. < > Press the keys to access Screen 5, then press the (-) and (+) keys to resume the operation of the valve. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
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Page 25: Manual Control Of The Bottom Blowdown Valve (With Plc Control Option)
When the valve is closed (travel limit switch ON is active) the external profile only of the valve graphic will be displayed. When instead the valve is open (travel limit switch OFF is active) the screen will show the complete graphic of the valve. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... - Page 26 Press the keys to return to Screen 16 (bottom blowdown), then press the (ON) and (OFF) < keys to control the valve. Screen 17 Screen 18 CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
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Page 27: Manual Control Of The Automatic Blowdown Valve
Please note that the product specific documentation for the BC3210 (IM-P403-53) will need to be referenced for any data regarding its installation and maintenance instruction. Screen 20 CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... -
Page 28: Automatic Mode
Automatic Mode (Screen 22). Then press the OK key to confirm and store the choice and enter the selected mode. Screen 22 CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... - Page 29 By pressing the key the reverse selection is obtained. These four screens are used for local programming of set point values. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
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Page 30: Pressure Control Setting Of The Desired Value (Set-Point)
Finally press the OK key and afterwards the V key to progress to the next setting. Note: The function will be disabled by setting the set point value to zero (0). CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... -
Page 31: Level Control
Finally press the OK key and afterwards the V key to progress to the next setting. Bottom blowdown control When the CSM-K control is equipped with the bottom blowdown option, it is possible to set the timing of its opening and closure. - Page 32 The selected Screen 27 will display the main measurements related to the automatic operation such as set point and measurement of analog variables and opening value in % of the control valve. Screen 27 CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
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Page 33: General Considerations In Automatic Operation
Press in sequence the RESET key, the OK key and finally the START key. The automatic operation will then return to active and Screen 27 will be displayed. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... -
Page 34: Emergency Shutdown Procedure
In the case of an emergency situation, the following procedure should be followed: Press the EMERGENCY STOP button. Isolate all services to the generator. Contact the maintenance personnel. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2... - Page 35 In order to resume the automatic operation reset the emergency push-button and press the START key. The cycle will restart and the RUN LED will therefore light up. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
- Page 36 Enter the desired value of the proportional band (gain) constant (0 to 100%) using the > and + keys. Note: the entered value will be stored until a successive modification. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
- Page 37 Note: the entered value will be stored until a successive modification. Screen 31 This setting is only possible when the constant of the integral action is forced to '0'. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
- Page 38 This value has to be lower than the control set point in any case. The cycle will not be blocked when this alarm Screen 37 occurs. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
- Page 39 This is an absolute value ranging from '0' to '1000' (zero and full-scale values of the level transmitter). The cycle will not be blocked when this alarm occurs. Screen 33 CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
- Page 40 Press the OK key to access the following Screens to set these parameters. Screen 36 Use Screen 36 to enter the full-scale values of pressure and level according to the installed transmitters. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
- Page 41 > To enter the value of full-scale use the - and + keys. Then press then the key. The previous Screen 38 will be displayed. CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
- Page 42 When the setting of all parameters is terminated press the ESC key. The initial Screen indicating the operation mode will be displayed. Screen 40 CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
- Page 43 Total or partial disregard of the above instructions involves loss of any right of guarantee. Spirax-Sarco S.r.l. Via per Cinisello, 18 - 20054 Nova Milanese (MI) Tel.: 0362 4917.1 Fax: 0362 4917307 CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
- Page 44 CSM-K Control Unit for the control of indirect steam generator systems IM-P486-11 TES Issue 2...
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