Samson 42-36 E Mounting And Operating Instructions

Also see for 42-36 E: Mounting and operating instructions

EB 3018 EN 7-5Operationwith Type 5824-30 or Type 3374 Actuator1. Extend the actuator stem (1.1) all theway to close the restriction (2.7) usingthe manual override (4 mm hex wrench)or by applying an electric control signal.The lock nut (2.2) must be threaded up-ward against the stem connector (1.2).2. Loosen the locking screw (2.6) and turnthe set point adjuster (2.3) clockwise ()as far as it will go to close the restriction(2.7).3. Determine the turns required to achievethe desired flow rate from the adjustmentdiagrams (see Table 7-2).4. Based on a closed restriction, turn the setpoint adjuster counterclockwise () toadjust the flow rate set point.5. Check the flow rate at the heat meter andcorrect it, if necessary.6. Once the flow rate is set as required,lock the setting with the locking screw(2.6).Manual changes or changes in the controlsignal to retract actuator stem now cause therestriction to open until the flow rate reachesthe adjusted set point.7.2.3 DN 125 to 250Type 3274 or Type 3374 Electric ActuatorÎ Adjustment without actuator · SeeFig. 7-11. Thread the lock nut (2.2) upwards to thetop of the rod (2.1).2. Press the rod (2.1) downward to closethe restriction (2.7).3. Loosen the locking screw (2.6) and turnthe set point adjuster (2.3) clockwise ()until the scale reading 0 is located abovethe red groove mark (2.5).4. Thread the lock nut (2.2) downwardagainst the set point adjuster (2.3) whilemaking sure the rod is not turned byholding the threaded rod (2.1) stationaryat the flattened part using a wrench.5. Determine the turns required to achievethe desired flow rate from the adjustmentdiagrams (see Table 7-2).6. Turn the hex nut on the set point adjuster(2.3) until the previously determinedscale reading is located above the redgroove mark (2.5) on the reference ring.7. Check the flow rate at the heat meter andcorrect it, if necessary.8. Once the flow rate is set as required,lock the setting with the locking screw(2.6).9. Thread the lock nut (2.2) upwards to thehead of the rod (2.1).10. Extend the actuator stem (1.1) using themanual override. Place the actuator onthe yoke and screw tight (see 'Tighteningtorques' in Annex).11. Position the stem connector clamps (1.2)and screw them tight.12. Thread the lock nut all the way to the toptoward the stem connector and lock inplace (see 'Tightening torques' in An-nex).