Related Manuals for Econex MPV Series
Summary of Contents for Econex MPV Series
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Page 1: Table Of Contents
MODULATING CONTROL VALVE SERIES MPV INSTRUCTIONS FOR THE INSTALLATION AND MAINTENANCE EATURES TECHNICAL FEATURES INSTALLATION ELECTRIC CONNECTIONS WIRING ITHOUT MANUAL AUTOMATIC CONTROL STATION ITH MANUAL AUTOMATIC CONTROL STATION AUXILIARY MICROSWITCHES POTENTIOMETER/S CONTROL STATION CALIBRATIONS IMIT SWITCH OTENTIOMETER LECTRONIC CARD CAPACITY ADJUSTMENT 10. -
Page 2: Main Features
MAIN FEATURES The modulating valves in the MPV [Modulating Plug Valve] series have been designed with a modern concept and they are DVGW approved, with CE identification number. They are suitable to be used in commercial and industrial combustion systems. They are especially suitable for the proportional adjustment of non corrosive fuel gases from the first, second and third family and air. -
Page 3: Installation
INSTALLATION Make sure that all the operating data shown on the valve label comply with the system operating data. When installing the valve be sure that there is sufficient clearance above the gear cover and that it can be easily accessible in order to perform the electrical connections and the calibration of the electric limit switches. -
Page 4: Electric Connections
ELECTRIC CONNECTIONS Arrange the wiring and the grounding according to the local norms in force. To access the inner terminal board and for the electric connections, remove the cover loosening the 4 fastening screws. Two threaded holes for cable pressers Pg 13.5 are already arranged on the base of the electric actuator. -
Page 5: Wiring
WIRING The wiring schemes refer to the valve in “closed” [0°] position. ITHOUT MANUAL AUTOMATIC CONTROL STATION ERMINAL BOARD Terminal earthing Terminal N1 N = neutral Terminal L2 by tension the valve closes Terminal 3 by tension the valve opens Terminal 4 for manual electric operation Terminal 16... -
Page 6: With Manual / Automatic Control Station
ITH MANUAL AUTOMATIC CONTROL STATION Terminal earthing Terminal 1 N = neutral Terminal 2 by tension the valve closes Terminal 3 by tension the valve opens Terminal 4 for manual electric control Terminal 16 answer signal when the valve reaches the “open” position Terminal 17 answer signal when the valve reaches the “closed”... -
Page 7: Auxiliary Microswitches
AUXILIARY MICROSWITCHES On request, the valve can be equipped with 2 auxiliary microswitches that can be adjusted in any position. Microswitches are voltage-free. The contact capacity is 5 A/250 Vac with ohmic load and 1 A/250 Vac with inductive load. Contact rating is about 5 A/250 with Ohm load and about 1 A/250 with inductive load. -
Page 8: Calibrations
CALIBRATIONS IMIT SWITCH 9.1.1 The MPV valve is delivered by the factory in closed position. The limit switches are adjusted to reach the positions of closed valve and completely open valve. 9.1.2 For “OPEN” position adjustment, it is necessary to operate on cam “S2”. 9.1.3 For cam adjustment, use the proper “half-moon”... -
Page 9: Potentiometer / S
OTENTIOMETER 9.2.1 The potentiometer shaft is frictioned and is accessible from the upper side inside the gear motor. 9.2.2 Disconnect the cables connected with the regulation system from the respective terminals n. 30, 31 and 32 [Pot. A] and, if necessary, n. 33, 34 and 35 [Pot. -
Page 10: Electronic Card
LECTRONIC CARD 9.3.1 Supply the servocontrol as per schema SE. 9.3.2 Select the MAN function 9.3.3 Position the adjustment instrument on 4 mA [or on 0 Vdc]. 9.3.4 Turn the servocontrol manually till reaching the mechanical zero. 9.3.5 Adjust the closing cam «S1» at few degrees before microswitch involvement. 9.3.6 Turn the potentiometer shaft clockwise till it stops mechanically. -
Page 11: Max . Capacity Adjustment
CAPACITY ADJUSTMENT 9.4.1 To reduce the max. capacity fit a 3 mm hexagon socket screw in the suitable seat on the lower part of the valve body and rotate it counterclockwise 9.4.2 The MPV valves are supplied by the factory adjusted for the max. capacity. 10.