Spirax Sarco LCS3051, Installation And Maintenance Instructions Manual

Page 1: ...l Switch Installation and Maintenance Instructions IM P693 07 EMM Issue 2 1 Safety information 2 General product information 3 Mechanical installation 4 Electrical installation 5 Commissioning 6 Fault...

Page 2: ...IM P693 07 EMM Issue 2 2 LCS3051 High Water Level Switch...

Page 3: ...g to EN 12952 EN 12953 These Directives state among other things the requirements made on limiting systems and equipment for steam boiler plants and pressurised hot water installations Functional Safe...

Page 4: ...P41 LCS3051 corresponds to a type B subsystem with Safety Integrity Level SIL 2 Type B means that the behaviour under fault conditions of the used components cannot be completely determined The functi...

Page 5: ...e specification of the safety related characteristics Table 1 refers to the level probe and the level switch including the output contacts The actuator e g an auxiliary contactor in the safety circuit...

Page 6: ...vel switch will open the safety circuit e g for the feedwater supply If the deactivation of the feedwater supply is interlocked in the external safety circuit the lockout can only de deactivated when...

Page 7: ...pper terminal strip 2 Lower terminal strip 3 Fixing screws cross recess head screws M3 4 Enclosure 5 Supporting rail type TH 35 EN 60715 Fig 2 The code switches are accessible after removing the lower...

Page 8: ...E IN GERMANY 24 V 24 V 20 See installation instructions Betriebsanleitung beachten Voir instructions de montage AL _ _ 3 2 Installation in control cabinet The level switch LCS3051 is clipped onto the...

Page 9: ...trical installation Item 1 Power supply 2 Signal output 1 for external alarm 24 Vdc 100mA semiconductor output 3 Safety circuit input and output 4 Wire link fitted on site when used as high water leve...

Page 10: ...oltage Provide the level switch LCS3051 with an external semi delay fuse 0 5 A Danger For the supply of the level switch LCS3051 with 24 Vdc use a safety extra low voltage SELV power supply unit that...

Page 11: ...ating surfaces in the feedwater preheater economizer the heating must be switched off too In the event of an alarm the level switch LCS3051 does not interlock automatically If a lockout function is re...

Page 12: ...and tested this takes approx 10 sec Output contacts are open Signal output 1 closed All LEDs are illuminated for more than 10 sec System malfunction Possible causes Faulty power supply level switch de...

Page 13: ...FE tape has not been applied Electrical conductivity of the boiler water too low Correct water conductivity If installed inside the boiler Upper vent hole in protection tube does not exist or is obstr...

Page 14: ...be 1 is illuminated Delay time has elapsed output contacts open Signal output 1 is closed Test channel 1 During operation Press and hold down key 1 until the end of the test level switch must function...

Page 15: ...edy Water level sufficient Red LED for level probe 1 is illuminated Safety circuit is open The insulation of the level probe is dirty or faulty Clean or if necessary replace level probe Further fault...

Page 16: ...nce voltage causing malfunction boiler earth without PE Provide screen and earthing connect boiler with PE LED alarm 1 and Diagnosis LED 3 illuminated Press and hold down key AL Diagnosis LED 1 flashi...

Page 17: ...he requirements of the EN 50156 6 4 Checking the switchpoints To check the switchpoint High water level HW exceeded you have to fill the boiler until the max water level is reached As soon as the high...

Page 18: ...stors 1 button for test and diagnosis 1 red green LED for indicating the operating mode and alarm 3 red LEDs for diagnosis Housing Housing material base polycarbonate black front polycarbonate grey Cr...

Page 19: ...no T V SHWS XX XXX see name plate Contents of package 1 x Level switch LCS3051 1 x Installation manual Contact your local Spirax Sarco representative Details can be found on accompanying order deliver...

Page 20: ...IM P693 07 EMM Issue 2 20 LCS3051 High Water Level Switch Spirax Sarco Ltd Runnings Road Cheltenham GL51 9NQ United Kingdom www spiraxsarco com...