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EA218 Series Electric Valve Actuator
ON-OFF, FAILSAFE, MODULATING & FAILSAFE MODULATING FUNCTIONS
ON-OFF ELECTRIC ACTUATOR
USER FRIENDLY
WITH
LED STATUS LIGHT AND ALL EXTERNAL ELECTRICAL
CONNECTIONS
I O Ms
Installation Operation & Maintenance Instructions
Models 140 & 300
EA218-140-A4-IOM-MAIN-Rev0-Feb 16
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Summary of Contents for Boss EA218 Series
- Page 1 EA218 Series Electric Valve Actuator ON-OFF, FAILSAFE, MODULATING & FAILSAFE MODULATING FUNCTIONS ON-OFF ELECTRIC ACTUATOR USER FRIENDLY WITH LED STATUS LIGHT AND ALL EXTERNAL ELECTRICAL CONNECTIONS I O Ms Installation Operation & Maintenance Instructions Models 140 & 300 EA218-140-A4-IOM-MAIN-Rev0-Feb 16...
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Page 2: Identification Label
STRUCTURE OF BOSS EA218 QUARTER TURN ELECTRIC VALVE ACTUATORS The BOSS EA218 range of electric actuators are simply a gearbox, a motor and a complex electronic circuit board containing a small computer chip, are designed so that in normal circumstances there are no internal adjustments that need to be made and that as all electrical connections are external and the connecting plugs are supplied with the actuator, there is no need to remove the actuator’s cover to connect them. -
Page 3: Safety Instructions
SAFETY INSTRUCTIONS BOSS EA218 Electric actuators operate with the use of live electricity. It is recommended that only qualified electricians or people instructed in accordance with electrical engineering, and familiar with local health and safety directives, be involved in the connection of these actuators. It is strongly recommended that each actuator has its own independent fused power supply system to protect it against the influence of other electrical devices connected to the system. -
Page 4: Wiring Diagrams
WIRING DIAGRAMS We recommend a fused independent supply for each actuator and it is very important that the power supply earth connection is made to prevent the current-free voltage on the non-live pin preventing the actuator working. This current-free voltage disappears as soon as the motor runs, but in non-earthed systems it can stop the EA218 from working. - Page 5 EXPLAINATION OF THE DIFFERENT FUNCTION OPTIONS Power to open, power to close: Stays put on mains power failure. On receipt of a continuous power signal, the motor runs and via a planetary gearbox system, rotates the output shaft. The motor is stopped by internal cams, fitted to the output shaft, strik- ing micro-switches which cuts power to the motor.
- Page 6 STANDARD WORKING QUADRANT CLOSED The BOSS EA218 operates in the 0° to 90° quadrant shown in the diagram to the left. If it is oper- ated manually and returned into automatic mode whilst the actuator’s indicator is outside the working quadrant, on the first automatic movement the EA218 will rotate until it activates the correct finish position relative to the command signal - the actuator may rotate well beyond its normal 90°...
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Page 7: Manual Override
MANUAL OVERRIDE DO NOT TURN THE EA218 HAND WHEEL ❶ ❷ Select ‘MAN’ Turn by hand to operate WITHOUT FIRST SELECTING ‘MAN’ OR IRREPARABLE DAMAGE WILL BE CAUSED TO THE ACTUATOR’S GEARBOX. SUCH DAMAGE IS NOT COVERED BY THE WARRANTY Select ‘MAN’... - Page 8 MULTI-COLOUR LED STATUS LIGHT Main features of the EA218 electric actuator’s multi-colour LED status light. EA218 responds to remote commands - normal opening and closing. Valve closed Solid RED Valve opening Blink GREEN / AMBER Valve open Solid GREEN Valve closing Blink RED / AMBER EA218 does not respond to remote commands - normal opening and closing.
- Page 9 Damage caused by water ingress is therefore not normally covered by the warranty. RECYCLE AT END OF LIFE BOSS is committed to protecting the environment. Please remember at the end of the product’s life to dispose of the product responsibly, and to recycle the product if the facilities are available.
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