Technical Instructions Document No. 125-4461 October 23, 2018 MXG461B Series Modulating Control Valves with Magnetic Actuators, Positioning Control and Position Feedback for Domestic Water Description Control valves with magnetic actuators, for modulating control of domestic water, cold water and hot water systems.
Technical Instructions Document Number 125-4461 October 23, 2018 Application MXG461B Series Modulating Control Valve with Magnetic Actuator The MX4G61B Series valves are through-port or mixing valves with magnetic actuators. The actuator is equipped with an electronics module for positioning control and position feedback. If the power is off, the valve control path A → AB is closed.
MXG461B Series Modulating Control Valve with Magnetic Actuator Control Technical Instructions Document Number 125-4461 October 23, 2018 The magnetic actuator can be driven by any controller with a 0/2 to 10 Vdc or 0/4 to 20 mA output signal. To achieve optimum control performance, it is recommended to use a 4-wire connection for the valve. NOTE: When using a dc power supply a 4-wire connection is mandatory. The controller’s signal ground terminal M must be connected to the valve’s terminal M.
Technical Instructions Document Number 125-4461 October 23, 2018 Manual Adjustment MXG461B Series Modulating Control Valve with Magnetic Actuator Press (a) and turn the hand wheel (b): • clockwise (CW). Control path A → AB can be mechanically opened to between 80% and 90%, or • counterclockwise (CCW). The actuator will be switched off and the valve closed.
MXG461B Series Modulating Control Valve with Magnetic Actuator Technical Instructions Document Number 125-4461 October 23, 2018 DIP Switches, Continued . Figure 4. Assignment of Positioning Signal Y: Voltage or Current. Figure 5. Selection of Valve Characteristic: Equal-Percentage or Linear. Output signal U (position feedback signal) is dependent on the load resistance. Above 500 ohm, it is automatically a voltage signal; below 500 ohm a current signal. Figure 6.
Technical Instructions Document Number 125-4461 October 23, 2018 MXG461B Series Modulating Control Valve with Magnetic Actuator Valve Sizing Characteristic Figure 8. Equal Percentage. Installation Notes • Figure 9. Linear. Installation instructions for the valve and terminal housing are enclosed with the valve. • Valves are supplied complete with brass/bronze fittings. • The screwed valves are flat-faced to facilitate sealing with the gaskets supplied.
MXG461B Series Modulating Control Valve with Magnetic Actuator Specification s Electrical Functional data, actuator Technical Instructions Document Number 125-4461 October 23, 2018 Low-voltage use only 24 Vac Operating voltage Frequency Typical power consumption Standby Nominal apparent power Suitable fuse 24 Vdc Operating voltage Current draw Class 2 (SELV, PELV) 24 Vac ± 20% 45 to 65 Hz See Table 1 Pmed <1 W (valve fully closed) See Table 1, SNA Slow, see Table 1, IN 20 to 30 Vdc 0.
Technical Instructions Document Number 125-4461 October 23, 2018 MXG461B Series Modulating Control Valve with Magnetic Actuator Specifications, Continued Pipe connections Screwed fittings Bronze/brass Electrical connections Cable entries Connection terminals Min. cross-sectional area 1) Max. cable length 2 × Ø 20.5 mm (for M20) Screw terminals for up to 12 AWG wires 0.
MXG461B Series Modulating Control Valve with Magnetic Actuator Technical Instructions Document Number 125-4461 October 23, 2018 Connection Terminals, Continued Controllers with phase-cut 0 to 20 Vdc Figure 13. Application Examples This example shows only a schematic diagram, without installation-specific details. CAUTION: 1. Use the valve only as a mixing or straight-through valve, not a diverting valve. Note the direction of flow. 2.
Technical Instructions Document Number 125-4461 October 23, 2018 MXG461B Series Modulating Control Valve with Magnetic Actuator Dimensions NOTE: Figure 15. Dimensions in Inches (Millimeters). The screwed fittings and gaskets are supplied with these valves. Product Number (mm) DN (in) G (in) L1 L2 L3 H E F W lb (kg) MXG461B15-0.6 15 Rp ½ G1B 3.15 (80) 1.67 (42.5) 1.97 (50) 13.4 (340) 3.15 (80) 4.53 (115) 15.65 (7.1) MXG461B15-1.5 15 Rp ½ G1B 3.15 (80) 1.67 (42.5) 1.
