MXF461 U Series Modulating Control Valves with Magnetic Actuators

Transcription

1 Document No. CA1N4455E-P5 April, 013 MXG461 U, MXF461 U Series Modulating Control Valves with Magnetic Actuators Sval0016R1 Sval0015R1 MXG461 U MXF461 U Description Features Mixing or straight-through valves with magnetic actuators for modulating control of hot and chilled water systems in closed circuits. Fast positioning time (< two seconds), high-resolution stroke (1:1000). Linear or equal-percentage valve characteristic (user-selected). Switch-selectable control signal: 0 to 10 Vdc, to 10 Vdc, or 4 to 0 ma. Wear-free inductive stroke measurement. Low friction, robust, no maintenance required. Fail-safe feature: A AB closed when de-energized. Positioning control. Position feedback. Manual control. Product Numbers See Table 1. Warning/Caution Notations WARNING: CAUTION: Personal injury or loss of life may occur if you do not follow the procedures as specified. Equipment damage or loss of data may occur if you do not follow the procedures as specified. Siemens Industry, Inc.

2 Document Number CA1N4455E-P5 April, 013 MXG461 U, MXF461 U Modulating Control Valves with Magnetic Actuators Application The MXG461...U (screwed fitting) and MXF461...U (flange fitting) valves are mixing or straight-through valves with a factory calibrated and mounted magnetic actuator. The magnetic actuator incorporates an electronics module for position control and positioning feedback. Control path A AB is closed when the valve is de-energized. CAUTION: The valve is suitable for straight-through normally closed or three-way applications and may be installed only in a mixing arrangement. The direction of flow (A AB) must be as indicated on the valve. The fast positioning time, high resolution and high rangeability make these valves ideal for modulating control of chilled and hot water systems in closed circuits. Sturdy construction makes maintenance and regular servicing unnecessary and ensures a long service life. Principles/ Construction Automatic Control Valve Characteristic The control signal is converted by the microprocessor in the electronics module into an output signal that generates a magnetic field in the core. This causes the only moving part, the armature, to change its position in accordance with the interacting forces (magnetic field, counter-spring, hydraulics, and so on). The armature responds rapidly to any change in signal, transferring the corresponding movement directly to the control disc, enabling fast changes in load to be corrected quickly and accurately. The valve position is measured continuously. The positioning controller ensures an exactly proportional relationship between the control signal and the valve stroke. Volumetric flow [%] Volumetric flow [%] SVAL07R y 10 [V] y 10 [V] y 0 [ma] Control signal Sval001R y 10 [V] y 10 [V] y 0 [ma] Control signal Figure 1. Equal-percentage. Figure. Linear. In the event of a power failure, or if the power is switched off, the spring force closes the valve automatically (control path ports A AB normally closed). Page Siemens Industry, Inc.

3 MXG461 U, MXF461 U Modulating Control Valves With Magnetic Actuators Technical Instructions Document Number CA1N4455E-P5 April, 013 Manual Control The valve control path (ports A AB) can be opened mechanically up to 95% of the full stroke by pressing the handwheel inward and turning it clockwise (to the MANUAL position). This disables the control signal from the controller. To disable automatic control of the valve, press the handwheel inward and turn it counterclockwise (to the OFF position). The valve will close. For automatic control, the handwheel must be set to the AUTO position (the handwheel will spring out). Sval0006R1 OFF AUTO MANUAL Figure 3. Selecting Automatic Control. Sizing Product Numbers Line Size C V Δ P max Close-off Maximum Pressure Table 1. MX.461 U - Valves Sizing. S NA 1 P med 1 I N 1 Wire Gauge (in) (gpm) (psi) (bar) (psi) (VA) (W) (A) Cable Length L (ft) MXG U 1/ MXG U 1/ MXG U 1/ MXG U 3/ MXG U MXG U 1-1/ MXG U 1-1/ MXG U MXF U -1/ Key: ΔPmax = Maximum permissible differential pressure across the valve s control path, valid for the entire actuating range of the motorized valve. SNA = Nominal apparent power for selecting transformer Pmed = Typical power consumption IN = Required slow fuse C V = Flow rate to IEC Control path A AB (normally closed): Tolerance ±5% Control path B AB (normally open): Tolerance ±10% L = Maximum cable length. With four-wire connections, the maximum permissible length of the separate 16 AWG Cu (copper) signal cable is 656 feet. With three-wire connections, the maximum permissible cable length is reduced to 1/3 of the values shown in the table. 1 = All data relates to a 4 Vac supply. Siemens Industry, Inc. Page 3

4 Document Number CA1N4455E-P5 April, 013 MXG461 U, MXF461 U Modulating Control Valves with Magnetic Actuators Product Number Line Size (in) ΔP V100 Table. Water Flow Chart. C VS MXG U 1/ MXG U 1/ MXG U 1/ MXG U 3/ MXG U MXG U 1-1/ MXG U 1-1/ MXG U MXF U -1/ PSI LED Indicators Mounting Access for Mounting The two-color LED display indicating operating status can be viewed by opening the cover of the electronics module. Table 3. LED Display. LED Display Status Description LED green On continuously Automatic mode: Auto (normal, no faults) Flashing Mechanically set to MANUAL Mechanically set to OFF Currently in auto-calibration mode LED red On continuously General fault General calibration fault Microcontroller fault Flashing Faulty 4 Vac supply (that is, too low) LED Off No 4 Vac supply Fault with electronics module As a general rule, the LED can only assume the conditions in Table 3 (continuously red or green, flashing red or green, or off). Mounting and operating instructions are printed on the actuator and on the electronics module. The valve is suitable only for straight-through or three-way applications and may be installed only in a mixing arrangement. In the case of the straight-through valve, strict observance of the direction of flow is essential. Do not mount with actuator below horizontal position. It is essential to maintain the specified minimum clearance above and to the side of the actuator and/or electronics module for servicing, installing and heat dissipation: 1/-inch to 1-1/4 inches 1-1/ inches to -1/ inches Also see Dimensions. = 4 inches = 6 inches Page 4 Siemens Industry, Inc.

5 MXG461 U, MXF461 U Modulating Control Valves With Magnetic Actuators Technical Instructions Document Number CA1N4455E-P5 April, 013 Mounting, Continued Straight-through Valves Only three-way MXG461...U valves are supplied. They may be used as straight-through normally closed valves by closing off port "B": Port "B" can be sealed with the accessories supplied (blanking disk, gasket, and the nut). B No blanking flange is available for MXF U. Sval0007R1 Installation Maintenance Figure 4. MXG461...U Screwed Valves in Straight-through Applications. MXG461...U screwed valves are flat-faced to facilitate sealing with the gaskets supplied. Do not use hemp, tape or thread-sealing compound. Do not insulate the actuator. For notes on electrical installation, see Terminal Layout. The valves and actuators require no maintenance or service. The valve stem is sealed with a maintenance-free O-ring gland. Should the valve electronics prove faulty, the electronics module should be exchanged for a replacement part, part number ASE1 (1/-inch to 1-1/4 inches) or ASE (1-1/ inches to -1/ inches). Mounting instructions are enclosed (Ref ). WARNING: Under operating conditions within the limits defined by the application data, the actuator will become hot, but this does not represent a fire risk. Always maintain the minimum clearance specified (see Dimensions). Siemens Industry, Inc. Page 5

6 Document Number CA1N4455E-P5 April, 013 MXG461 U, MXF461 U Modulating Control Valves with Magnetic Actuators Specifications Electrical Interface Page 6 Power supply Class Supply voltage 4 Vac, 50/60 Hz Maximum voltage tolerance +0/ 15% Control signal (user-selected) 0 to 10 Vdc, to 10 Vdc, or 4 to 0 ma Software class Class A Nominal power See Sizing Position Signal Y 0 to 10 Vdc, to 10 Vdc, or 4 to 0 ma Impedance 0 to 10 Vdc or to 10 Vdc 100k Ω //5nF 4 to 0 ma 100 Ω //5nF Position feedback signal 0 to 10 Vdc; load resistance > 500 Ω Product Specific Data Applications To EN60730 Nominal pressure 3 psi (16 bar) Permissible Operating pressure p e max 150 psi Differential pressure ΔPmax See Table 1 Leakage at ΔPv = 14.5 psi (0.1 Mpa) (1bar) Admissible media Temperature of medium Valve characteristic (stroke, kvs) A AB Max. 0.0 % Cv (to IEC534-4) B AB Depends on operating conditions (<0.% Cv) Water, or water/glycol mixtures with maximum 50% glycol 34 F to 66 F (1 C to 130 C) Linear or equal percentage (userselected), optimized near the closing point (to IEC534--4) Stroke resolution ΔH/H100 1:1000 (H = stroke) Hysteresis Typically 3% Type of operation Modulating Manual adjustment Yes, with handwheel Position with actuator de-energized A AB closed Orientation Upright to horizontal Note that orientation affects protection standard Positioning time < seconds Materials (valve body) Housing parts Cast iron Plug CrNi Steel Seat Brass Valve stem seal EPDM (O-ring) Bellows Tombac, bronze, CrNi steel Electrical connection Connection terminal Screw terminals Per terminal, with wire (no lug) 16 AWG or 1 14 AWG Per terminal with wire 16 AWG or 1 1 AWG Miscellaneous Weight (including packaging) See Dimensions Dimensions See Dimensions Ambient conditions Maximum ambient temperature 113 F (45 C) Agency Approvals UL listing Per UL 873 C-UL Certified to Canadian Standard C. No. 4 Suitable for use in air handling spaces NEMA Type 1 Siemens Industry, Inc.

7 MXG461 U, MXF461 U Modulating Control Valves With Magnetic Actuators Technical Instructions Document Number CA1N4455E-P5 April, 013 Wiring Terminals WARNING: Earth ground must be connected to the pipe work. Sval0011R G0 G Y YM X YF ~ 4 Vac 4 Vac Control signal input Control signal reference voltage 0 to 10 Vdc stroke signal output (position feedback) Override control Figure 5. Terminal Layout for Four-wire Connections. Wiring Diagram Sval008R VDC -10 VDC 4-0 ma 4 VAC + ± 4 VAC U MX G0 G Y YM X YF 4 VAC MX G0 G Y YM X YF Figure 6. Connection to Controller with Four-wire Output. U = Indication of valve position (only where required). 0 to 10 Vdc 0 to 100% volumetric flow. Forced Control Feature (Input Terminal YF/6) SSEN0093R1 TWISTED PAIRS If the cables for the 4 Vac supply and the control signal 0 to 10 Vdc ( to 10 Vdc, 4 to 0 ma are routed separately, twisted pairs are not required for the 4 Vac cable). 0 Vac (Bridge G0 YF) 4 Vac (Bridge G YF) 1 to 9 Vdc at F Control path A AB closed Control path A AB open Continuously variable low limit control 10% to 90% volume flow (the higher value YF of Y takes priority). This function is available with valves with a manufacturing date of or later. Siemens Industry, Inc. Page 7

8 Document Number CA1N4455E-P5 April, 013 MXG461 U, MXF461 U Modulating Control Valves with Magnetic Actuators Configuration Switches Switch 1 Characteristic Control signal 3 Volts or ma Off Linear 0 to 10 Vdc* 0() to 10 Vdc* On Equal percentage* to 10 Vdc or 4 to 0 ma 4 to 0 ma * Factory setting: equal percentage valve characteristic, 0 to 10 Vdc control signal c A Calibration Application Example B Figure 7. DIP Switches. The MX 461 P magnetic valves are factory-calibrated at 0% and 100% stroke. When commissioning the valves (especially under extreme usage conditions) there may still be some leakage via control path A AB with a 0% stroke control signal (0 Vdc, 4 ma or Vdc). In this case, the valve can be recalibrated as follows (see Figure 8): Use a pin or paper clip to push the button in opening (A) in the terminal housing. During calibration, the LED light (B) in the electronics module will flash green for approximately 10 seconds. The valve will be briefly closed and fully opened. CAUTION: This valve is suitable for straight-through normally closed or three-way applications only, and should only be installed in a mixing arrangement. AB B A AB B A 10 x D N (min. 0 in) B A AB B A AB A AB Sval0014R1 A B C D E A B C D E Mixing circuit Mixing circuit with bypass (underfloor heating) Injection circuit Diverting circuit Injection circuit with straight-through valve Figure 8. Hydraulic Circuits. Page 8 Siemens Industry, Inc.

9 MXG461 U, MXF461 U Modulating Control Valves With Magnetic Actuators Technical Instructions Document Number CA1N4455E-P5 April, 013 Service CAUTION: Do not disassemble the valve and actuator combination. This assembly is factorycalibrated, and should only be replaced by qualified personnel. Dimensions All dimensions in inches (millimeters) min. 100 E F min. 100 H b ø d A B AB L1 ø k ø D Sval0009.eps L Table 4. MXF461 U Flanged Valve with Electronics Module. Product Number L L1 D b k d H E F 4X MXF U 11.4 (90) 4.9 (15) 7.00 (177.8) 0.88 (.4) 5.50 (139.7) 0.75 (19.05) (39) (100) lbs (kg) 63.1 (8.6) NOTE: Installer must supply counterflanges. lbs. (kg) = Weight (including packaging) Siemens Industry, Inc. Page 9

10 Document Number CA1N4455E-P5 April, 013 MXG461 U, MXF461 U Modulating Control Valves with Magnetic Actuators Dimensions, Continued min. 100 E F All dimensions in inches (millimeters) min. 100 L1 DI H DA A AB B L Sval0010R1 L Table 5. MXG461 U Valves with Electronics Module. Product Number DI DA L L1 L * H E F lbs (kg) MXG U 1/ MXG U 1/ MXG U 1/ MXG U 3/4 1-1/ (95) MXG U 1 1-1/ 4.33 (110) MXG U 1-1/4 4.9 (15) MXG U 1-1/ -1/ (140) MXG U -3/ (170) 1.67 (4.5) 1.67 (4.5) 1.67 (4.5).07 (5.5). (56.5).66 (67.5) 3.17 (80.5) 3.68 (93.5).01 (51).01 (51).01 (51).40 (61).56 (65).99 (76) 3.70 (94) 4.9 (109) 9.45 (40) 9.45 (40) 9.45 (40) 10.4 (60) (70) 11. (85) 1.60 (30) (340) (100) 3.94 (100) 3.94 (100) 3.94 (100) 3.94 (100) 3.94 (100) 3.94 (100) 3.94 (100) 4.7 (10) 4.7 (10) 8.4 (3.8) 8.4 (3.8) 8.4 (3.8) 9.3 (4.) 10.4 (4.7) 1.3 (5.6) 0.5 (9.3) 6. (11.9) * When used as a straight-through valve lbs. (kg) = Weight (including packaging) Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective owners. 013 Siemens Industry, Inc. Siemens Industry, Inc. Building Technologies Division 1000 Deerfield Parkway Buffalo Grove, IL USA Your feedback is important to us. If you have comments about this document, please send them to SBT_technical.editor.us.sbt@siemens.com Document No. CA1N4455E-P5 Printed in the USA Page 10

11 Document No March 19, 014 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. Features Fast positioning time (< seconds) Selectable valve characteristic: Equal percentage or linear Selectable standard interface: 0/ to 10 Vdc or 0/4 to 0 ma High resolution (>1:1000) High rangeability Wear-free inductive stroke measurement Spring return A AB closed when de-energized Positioning control and position feedback signal Low-friction, heavy-duty and maintenance-free Accepts 0 to 0 Vdc phase-cut control signal input Product Numbers See Table 1. Warning/Caution Notations WARNING: CAUTION: Personal injury or loss of life may occur if you do not follow the procedures as specified. Equipment damage or loss of data may occur if you do not follow the procedures as specified. Application 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. The short positioning time, high resolution and high rangeability make these valves ideal for modulating control of domestic, hot and cold water systems. Siemens Industry, Inc.

12 Document Number March 19, 014 MXG461 Series Modulating Control Valve with Magnetic Actuator Table 1. Product Numbers. Wire Gauge (AWG) Product Line Size Cv ps p max S NA Pmed I N Number (in) (psi) (psi) (VA) (W) Fuse L (ft) MXG461B / MXG461B / MXG461B15-3 1/ MXG461B0-5 3/ MXG461B MXG461B / MXG461B / MXG461B Key: p max ps S NA Pmed I N Cv L = Maximum permissible differential pressure across the valve's control path, valid for the entire actuating range of the motorized valve (maximum recommended operating differential pressure). = Maximum permissible differential pressure at which the motorized valve will close securely against the pressure (close-off pressure). = Nominal apparent power for selecting the transformer. = Average true power. = Slow fuse (mandatory). = Nominal flow rate of cold water [41 F to 86 F (5 C to 30 C)]. = Maximum cable length. With four-wire connections the maximum permissible length of the separate 14 AWG Cu signal cable is 656 feet (00 m). Ordering The valve body and magnetic actuator assemblies cannot be separated. The brass/bronze fittings are included. The Z366 stem heater must be ordered separately. When placing an order, specify the quantity, product number and description. Example: 1 MXG461B valve and 1 Z366 stem heater Accessories Z366 Stem heater for 4 Vac/10W. Required for medium temperatures <3 F (0 C). ASE1 Replacement Circuit Board Figure 1. Technical/ Mechanical Design Operation Control The electronics module converts the positioning signal to a phase-cut power signal, which generates a magnetic field in the coil. This causes the armature to change its position according to the interacting forces (magnetic field, counterspring, hydraulics, etc.). The armature responds rapidly to any change in signal, transferring the corresponding movement directly to the valve plug. This enables fast changes in load to be corrected quickly and accurately. The valve s position is measured continuously. Any disturbance in the system is rapidly corrected by the internal positioning controller, which ensures that the positioning signal and the valve stroke are exactly proportional, and also delivers the position feedback signal. Page Siemens Industry, Inc.

13 MXG461B Series Modulating Control Valve Technical Instructions with Magnetic Actuator Document Number March 19, 014 Control The magnetic actuator can be driven by any controller with a 0/ to 10 Vdc or 0/4 to 0 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. Terminals M and G0 have the same potential, and are internally interconnected in the valve s electronics. CAUTION: You must use a four-wire connection with Vdc power supply. Basic Diagram Spring Return Action If the power or positioning signal is switched off or fails, the valve control path (port A AB) is automatically closed by the force of the spring. LED Indication Operating State, Function Green Red Both Table. Indication of Operating State. Remarks, Troubleshooting Lit Control mode Normal operation; everything OK. Flashing Calibration In manual control Wait until calibration is finished (green or red LED will be lit). Hand wheel in Man or Off position. Calibration error Recalibrate (bridge contacts behind the Lit calibration slot). Internal error Replace electronics module. Mains fault Check electric main network (outside the Flashing frequency or voltage range); DC Supply -/+ Vdc supply +/- connection polarity. Dark No power supply Check electric main network, check wiring. Electronics faulty Replace electronics module. Siemens Industry, Inc. Page 3

14 Document Number March 19, 014 MXG461 Series Modulating Control Valve with Magnetic Actuator Manual Adjustment 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. As soon as the hand wheel is pressed and turned, neither the forced control signal Z, the input signal Y, nor the phase-cut signal acts on the actuator. The green LED will flash. For automatic control, the hand wheel must be set to the Auto position. The green LED will be lit. Figure. Calibration If the electronics module is replaced or the actuator turned through 180, the valve s electronics must be recalibrated. To recalibrate, the hand wheel must be set to Auto. The printed circuit board has a slot (see Figure 3). Calibrate by bridging the contacts located behind the slot on the printed circuit board, using a screwdriver. The valve will then travel across the full stroke to store the end positions. While calibration is in progress, the green LED will flash for about 10 seconds (see Indication of Operating State). Figure 3. DIP Switches Figure 4. Configuration DIP Switches. DIP Function OFF (Default) ON Remarks 1 ON OFF Voltage or current input [ V ] [ ma ] Assignment of terminal Y: Voltage or current ON OFF Correcting span Terminals Y and U 0 to 10 Vdc, 0 to 0 ma to 10 Vdc, 4 to 0 ma Offset settings of input and output 3 ON OFF Characteristic V log (equal percentage) V lin (linear) Page 4 Siemens Industry, Inc.

15 MXG461B Series Modulating Control Valve Technical Instructions with Magnetic Actuator Document Number March 19, 014 DIP Switches, Continued. Figure 5. Assignment of Positioning Signal Y: Voltage or Current. Figure 6. 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. Forced Control Input Figure 7. Assignment of Correcting Span Y and U: 0 to 10 Vdc/0 to 0 ma or to 10 Vdc/4 to 0 ma. Transfer Connections Signal Priority Figure 8. If terminal Z for the forced control input is: not connected, the valve will follow the Y-signal or the phase-cut signal. connected to G, the valve will fully open via control path A AB. connected to G0, the valve will close via control path A AB. 1. Hand wheel position Man or Off. Forced control signal Z 3. Phase-cut signal 4. Signal input Y Siemens Industry, Inc. Page 5

16 Document Number March 19, 014 MXG461 Series Modulating Control Valve with Magnetic Actuator Valve Sizing Characteristic Figure 9. Equal Percentage. Figure 10. Linear. Installation Notes Installation instructions for the valve and terminal housing are enclosed with the valve. Use in Straight-through Applications Valves are supplied complete with brass/bronze fittings. The screwed valves are flat-faced to facilitate sealing with the gaskets supplied. The use of sealing compounds, tape or hemp thread is not recommended. For electrical installation, see Wiring Diagrams. CAUTION: Always disconnect the power before fitting or removing the terminal housing. The terminal housing is calibrated and matched to the actuator, and should be replaced only by qualified personnel. Use the valve only as a mixing or straight-through valve, not as a diverting valve. Note the flow direction. Do not allow the surface temperature of the actuator to fall below the dew point temperature of the surrounding air (causing condensation). If necessary, insulate the valve. Do not insulate the actuator. Only three-way valves are supplied. These may be used as straight-through valves by closing off port B with the accessories supplied (nut, cover and gasket). Figure 11. Straight-through Application. Mounting Position Vertical to horizontal mounting: Do not mount the valve below the horizontal. Figure 1. Acceptable Mounting Positions. Page 6 Siemens Industry, Inc.

17 MXG461B Series Modulating Control Valve Technical Instructions with Magnetic Actuator Document Number March 19, 014 Connecting the Z366 Stem Heater The Z366 includes connectors for the stem heater. The stem heater is designed for a 4 Vac power supply. Specifications Electrical Functional data, actuator Figure 13. Z366 Stem Heater. Low-voltage use only Class (SELV, PELV) 4 Vac Operating voltage 4 Vac +0/-15% Frequency 45 to 65 Hz Typical power consumption See Table 1 P med Standby <1 W (valve fully closed) Nominal apparent power See Table 1, S NA Suitable fuse Slow, see Table 1, I N 4 Vdc Operating voltage 0 to 30 Vdc Input Positioning signal Y 0/ to 10 Vdc or 0/4 to 0 ma, or 0 to 0 Vdc Phs phase cut Impedance 0/ to 10Vdc 100K ohm//5nf (load < 0.1mA) 0/4 to 0 ma 40 ohm//5nf Forced control Impedance Closing the valve (Z connected to G0) Opening the valve (Z connected to G0) No function (Z not wired) Output Position feedback signal U Stroke measurement Nonlinearity K ohm <1 Vac; <0.8 Vdc >6 Vac; >5 Vdc Phase-cut or positioning signal Y active voltage 0/ to 10 Vdc; load resistance > 500Ω current 0/4 to 0 ma; load resistance < 500Ω Inductive +3% of end value Functional data, valve Nominal pressure ANSI 15 (PN 16) Operating pressure p e max 1) 3 psi (16 bar) Pressure differential p v max See Table 1 Leakage at A AB max. 0.05% Cv p = 14.5 psi (1 bar) B AB < 0.% Cv depending on operating conditions Water temperature ) 4 F to 66 F ( 0 C to 130 C) Valve characteristic 3) Equal percentage or linear, optimized near the closing point Resolution H/H100 1 : 1000 (H = Stroke) Type of operation Modulating Position when de-energized A AB closed Orientation: Upright to horizontal Positioning time < seconds 1. Tested at 1.5 PN (4 bar), similar to DIN For medium temperatures <3 F (0 C), the Z366 stem heating element is required. 3. Can be selected via DIP switch. Siemens Industry, Inc. Page 7

18 Document Number March 19, 014 MXG461 Series Modulating Control Valve with Magnetic Actuator Specifications, Valve body Red bronze (CC491K) Continued Cover flange Red bronze (CC491K) Materials Seat/Inner valve Stainless Steel Valve stem seal EPDM (O-ring) Pipe connections Screwed fittings Bronze/brass Electrical connections Cable entries 3 M0 1.5 or PG13.5/G1/ Connection terminals Screw terminals for up to 1 AWG wires Min. cross-sectional area 1) 0.75 mm Max. cable length See Table 1, 9 (AWG) Ambient conditions Temperature Operation and storage 3 F to 113 F (-5 C to 45 C) Transport -13 F to 158 F (-5 C to 70 C) Humidity 5 to 95% rh (non-condensing) Agency approvals Degree of protection IP31 to IEC 59 Conforms to CE requirements UL 873 Certified to Canadian standard C. No. 4 C-Tick N-474 PED 97/3/EC: pressure-carrying parts Par. 1, section..1.4/par. 3, section 3 Fluid group Miscellaneous Weight See Figure 18 Dimensions See Figure 18 Connection Terminals WARNING: If the controller and the valve receive their power supply from separate sources, the valve transformer must not be grounded on the secondary side. Controllers with: 0 to 10 Vdc to 10 Vdc 0 to 0 ma 4 to 0 ma A four-wire connection is mandatory with DC power supply. Figure In case of strong vibrations, use high-flex stranded wires. Page 8 Siemens Industry, Inc.

19 MXG461B Series Modulating Control Valve Technical Instructions with Magnetic Actuator Document Number March 19, 014 Connection Terminals, Continued Controllers with phase-cut 0 to 0 Vdc Figure 15. Figure 16. Stem Heating Element Z366. Siemens Industry, Inc. Page 9

20 Document Number March 19, 014 MXG461 Series Modulating Control Valve with Magnetic Actuator 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.. Ensure that adequate air venting is provided for the entire hydronic system. 3. Select a non-return valve with minimum pressure loss for the circulating pipes. Service Key : A Mixing circuit B Mixing circuit with bypass (underfloor heating system) CAUTION: C Injection circuit D Diverting circuit E Injection circuit with throughport valve Figure 17. Do not disassemble the valve and actuator combination. This assembly is factory-calibrated, and should only be replaced by qualified personnel. The low-friction and robust, maintenance-free design makes regular servicing unnecessary and ensures a long service life. The valve stem is sealed from external influences by a maintenance-free gland. If the red LED is lit, the electronics must be recalibrated or replaced. If required, the circuit board can be replaced. Order part number ASE1. Page 10 Siemens Industry, Inc.

21 MXG461B Series Modulating Control Valve Technical Instructions with Magnetic Actuator Document Number March 19, 014 Dimensions NOTE: Figure 18. Dimensions in Inches (Millimeters). The screwed fittings and gaskets are supplied with these valves. Product Number DN G (mm) (in) (in) L1 L L3 H E F MXG461B Rp ½ G1B 3.15 MXG461B Rp ½ G1B 3.15 MXG461B Rp ½ G1B 3.15 MXG461B0-5 0 Rp ¾ G1¼B 3.74 (95) MXG461B5-8 5 Rp 1 G1½B 4.33 (110) MXG461B3-1 3 Rp 1¼ GB 4.9 (15) MXG461B Rp 1½ G¼B 5.51 (140) MXG461B Rp G¾B 6.69 (170) 1.67 (4.5) 1.67 (4.5) 1.67 (4.5).07 (5.5). (56.5).66 (67.5) 3.17 (80.5) 3.68 (93.5) 1.97 (50) 1.97 (50) 1.97 (50).36 (60).5 (64).95 (75) 3.66 (93) 4. (108) 13.4 (340) 13.4 (340) 13.4 (340) 13.3 (339) 13.6 (346) 15.1 (384) (401) 40 (15.83) (100) 3.94 (100) 3.94 (100) 4.53 (115) 4.53 (115) 4.53 (115) 4.53 (115) 4.53 (115) 4.9 (15) 4.9 (15) 4.9 (15) W lb (kg) (7.1) (7.3) (7.3) (7.7) (8.5) 8. (1.8) 3.19 (14.6) (18.6) G: External thread G B to ISO8/1 DN: Internal thread Rp to ISO7/1 Fittings to ISO 49/DIN 950 (supplied complete with flange gaskets) Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective owners. 013 Siemens Industry, Inc. Siemens Industry, Inc. Building Technologies Division 1000 Deerfield Parkway Buffalo Grove, IL USA Your feedback is important to us. If you have comments about this document, please send them to SBT_technical.editor.us.sbt@siemens.com Document No Printed in the USA Page 11

22 Document No June 17, 008 MVF461H Series Modulating Control Valves with Magnetic Actuators, Positioning Control and Position Feedback for Hot Water and Steam Description Control valves with magnetic actuators, for modulating control of hot water, high temperature hot water, and steam. Features Fast positioning time (< seconds) Selectable valve characteristic: Equal percentage or linear Selectable standard interface: 0/ to 10 Vdc or 0/4 to 0 ma High resolution (>1:1000) High rangeability Wear-free inductive stroke measurement Spring return A AB closed when de-energized Positioning control and position feedback signal Low-friction, heavy-duty and maintenance-free Phase-cut signal input for Staefa controllers Product Numbers See Table 1. Warning/Caution Notations WARNING: CAUTION: Personal injury or loss of life may occur if you do not follow the procedures as specified. Equipment damage or loss of data may occur if you do not follow the procedures as specified. Application The MVF461H 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. The short positioning time, high resolution and high rangeability make these valves ideal for proportional control of district heating stations, and heating applications using high temperature hot water and steam. Siemens Building Technologies, Inc.

23 Document Number June 17, 008 MVF461H Series Modulating Control Valve with Magnetic Actuator Product Number Table 1. Product Numbers. Wire Gauge (AWG) Line Size Cv Δps Δpvmax S NA Pmed I N (in) (psi) (psi) (VA) (W) Fuse L (ft) MVF461H / MVF461H / MVF461H15-3 1/ MVF461H0-5 3/ MVF461H MVF461H / MVF461H / MVF461H Ordering Key: Δpvmax = Maximum permissible differential pressure across the valve's control path, valid for the entire actuating range of the motorized valve (maximum recommended operating differential pressure). Δps = Maximum permissible differential pressure at which the motorized valve will close securely against the pressure (close-off pressure). S NA = Nominal apparent power for selecting the transformer. Pmed = Average true power. I N = Slow fuse (mandatory). Cv = Nominal flow rate of cold water [41 F to 86 F (5 C to 30 C)]. L = Maximum cable length. With four-wire connections the maximum permissible length of the separate 14 AWG Cu signal cable is 656 feet (00 m). The valve body and magnetic actuator assemblies cannot be separated. The assemblies can also be ordered with NPT flanges or weld flanges. To order with NPT flanges, add an -N suffix to the part number. To order with Weld Flanges, add a -W suffix to the part number. When placing an order, specify the quantity, product number and description. Examples: (without flanges) (with NPT flanges) (with weld flanges) 1 MVF461H valve 1 MVF461H N valve with NPT flanges 1 MVF461H W valve with weld flanges Accessory ASE1 Replacement Circuit Board Technical/ Mechanical Design Automatic Control The electronics module converts the positioning signal to a phase-cut power signal, which generates a magnetic field in the coil. This causes the armature to change its position according to the interacting forces (magnetic field, counterspring, hydraulics, etc.). The armature responds rapidly to any change in signal, transferring the corresponding movement directly to the valve plug. This enables fast changes in load to be corrected quickly and accurately. The valve s position is measured continuously. Any disturbance in the system is rapidly corrected by the internal positioning controller, which ensures that the positioning signal and the valve stroke are exactly proportional, and also delivers the position feedback signal. Page Siemens Building Technologies, Inc.

24 MVF461H Series Modulating Control Valve Technical Instructions with Magnetic Actuator Document Number June 17, 008 Control The magnetic actuator can be driven by any controller with a 0/ to 10 Vdc or 0/4 to 0 ma output signal. To achieve optimum control performance, using a 4-wire connection for the valve is recommended. The controller s signal ground terminal M must be connected to the valve s terminal M. Terminals M and G0 have the same potential and are internally interconnected in the valve s electronics. CAUTION: You must use a four-wire connection with Vdc power supply. Basic Diagram G0 G Power Supply Power Control 1M M Y M 0/ to 10 V 0/4 to 0 ma Stroke Control Stroke Sensor SSEN0335R1 U Z Phs Phs X3 AMP Bus-Subprint 0/ to 10 V 0/4 to 0 ma SPh 0 to 0 Vdc Green / Red Micro Controller DIP-Switch 1 3 ON ON ON Calib. B-Mode Hand Control Spring Return Action If the power or positioning signal is switched off or fails, the valve control path (port A AB) is automatically closed by the force of the spring. LED Indication Operating State, Function Green Red Table. Indication of Operating State. Remarks, Troubleshooting Lit Control mode Normal operation; everything is OK. Flashing Lit Flashing Calibration In manual control Calibration error Internal error Main fault DC Supply -/+ Both Dark No power supply Electronics faulty Wait until calibration is finished (green or red LED will be lit). Hand wheel in Man or Off position. Recalibrate (bridge contacts behind the calibration slot). Replace electronics module. Check electric main network (outside the frequency or voltage range); Vdc supply +/- connection polarity. Check electric main network, check wiring Replace electronics module. Siemens Building Technologies, Inc. Page 3

25 Document Number June 17, 008 MVF461H Series Modulating Control Valve with Magnetic Actuator Manual adjustment Press (a) and turn the hand wheel (b): a clockwise (CW). Control path A AB can be mechanically opened to between 80% and 90%, or Man b Auto Off b counterclockwise (CCW). The actuator will be switched off and the valve closed. As soon as the hand wheel is pressed and turned, neither the forced control signal Z, the input signal Y, nor the phase-cut signal acts on the actuator. The green LED will flash. SSEN0336R1 For automatic control, the hand wheel must be set to the Auto position. The green LED will be lit. Figure 1. Calibration If the electronics module is replaced or the actuator turned through 180, the valve s electronics must be recalibrated. To recalibrate, the hand wheel must be set to Auto. The printed circuit board has a slot (see Figure ). Calibrate by bridging the contacts located behind the slot on the printed circuit board, using a screwdriver. The valve will then travel across the full stroke to store the end positions. SSEN0337R1 While calibration is in progress, the green LED will flash for about 10 seconds (see Table. Indication of Operating State). Figure. DIP Switches to 10 V 4 to 0 ma ma Vlin ON SSEN0338R1 OFF V Vlog 0 to 10 V 0 to 0 ma Figure 3. Configuration DIP Switches. DIP Function OFF (Default) ON Remarks 1 ON OFF Voltage or current input [ V ] [ ma ] Assignment of terminal Y: Voltage or current ON OFF Correcting span Terminals Y and U 0 to 10 Vdc, 0 to 0 ma to 10 Vdc, 4 to 0 ma Offset settings of input and output 3 ON OFF Characteristic V log (equal percentage) V lin (linear) Page 4 Siemens Building Technologies, Inc.

26 MVF461H Series Modulating Control Valve Technical Instructions with Magnetic Actuator Document Number June 17, 008 DIP Switches, Continued Y ON OFF ON OFF ON OFF ON OFF V V SSEN0339R1 ON OFF ON OFF 0 to 10 V to 10 V 0 to 0 ma 4 to 0 ma. SSEN0341R1 Y Y Figure 4. Assignment of Positioning Signal Y: Voltage or Current. Figure 5. Selection of Valve Characteristic: Equal-Percentage or Linear. SSEN0340R1 U Ri > 500 Ri < 500 ON ON OFF OFF 0 to 10 V to 10 V 0 to 0 ma 4 to 0 ma 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. Forced Control Input Figure 6. Assignment of Correct Span Y and U: 0 to 10 Vdc/0 to 0 ma or to 10 Vdc/4 to 0 ma. Z-mode Transfer Connections SSEN034R1 100 % No Function G0 G Y M U Z 0 % Y 0 % 100 % 100 % Fully Open G0 G Y M U Z 0 % Y 0 % 100 % 100 % Closed G0 G Y M U Z V A AB V A AB V A AB 0 % Y 0 % 100 % Signal Priority Figure 7. If terminal Z for the forced control input is: not connected, the valve will follow the Y-signal or the phase-cut signal. connected to G, the valve will fully open via control path A AB. connected to G0, the valve will close via control path A AB. 1. Hand wheel position Man or Off. Forced control signal Z 3. Phase-cut signal 4. Signal input Y Siemens Building Technologies, Inc. Page 5

27 Document Number June 17, 008 MVF461H Series Modulating Control Valve with Magnetic Actuator Characteristic V[%] V [%] SSEN0343R [V] 10 [V] 0 [ma] SSEN0344R [V] 10 [V] 0 [ma] Figure 8. Equal Percentage. Figure 9. Linear. Installation Notes Installation instructions for the valve and terminal housing are enclosed with the valve. For electrical installation, see Wiring Diagrams. CAUTION: Always disconnect the power before fitting or removing the terminal housing. The terminal housing is calibrated and matched to the actuator, and should be replaced only by qualified personnel. Valve may only be used in flow direction (A AB). Note the flow direction. Do not allow the surface temperature of the actuator to fall below the dew point temperature of the surrounding air (causing condensation). If necessary, insulate the valve. Do not insulate the actuator. Mounting Position Vertical to horizontal mounting: Do not mount the valve below horizontal. 90 IP31 90 IP31 SSEN0345R1 Specifications Electrical Figure 10. Acceptable Mounting Positions. Low-voltage use only Class (SELV, PELV) 4 Vac Operating voltage 4 Vac +0/-15% Frequency 45 to 65 Hz Typical power consumption See Table 1, P med Standby <1 W (valve fully closed) Nominal apparent power See Table 1, S NA Suitable fuse Slow, see Table 1, I N 4 Vdc Operating voltage 0 to 30 Vdc Page 6 Siemens Building Technologies, Inc.

28 MVF461H Series Modulating Control Valve Technical Instructions with Magnetic Actuator Document Number June 17, 008 Specifications, Continued Functional data of actuator Input Positioning signal Y 0/ to 10 Vdc, 0/4 to 0 ma, or 0 to 0 Vdc Phs Impedance 0/ to 10 Vdc 100K ohm//5nf 0/4 to 0 ma 40 ohm//5nf Forced control Impedance K ohm Closing the valve (Z connected to G0) <1 Vac; <0.8 Vdc Opening the valve (Z connected to G0) >6 Vac; >5 Vdc No function (Z not wired) Phase-cut or positioning signal Y active Output Position feedback signal voltage 0/ to 10 Vdc; load resistance > 500Ω current 0/4 to 0 ma; load resistance < 500Ω Stroke measurement Inductive Nonlinearity +3% of end value Functional data of valve Nominal pressure ANSI 15 (PN 16) Permissible Operating pressure 1) Water up to 48 F (10 C): 3 psi (16 bar) Water above 48 F (10 C): 188 psi (13 bar) Saturated steam: 130 psi (9 bar) Pressure differential Δpmax/Δps 145 psi (10 bar) Leakage at Δp = 0.1 MPa (1 bar) A AB Maximum 0.05% C V Media temperature 34 F to 356 F (>1 C to 180 C) Valve characteristic ) Equal percentage or linear, optimized near the closing point Resolution ΔH/H100 1:1000 (H = Stroke) Type of operation Modulating Position when de-energized A AB closed Orientation: Upright to horizontal Positioning time < seconds Materials Valve body Modular cast iron Cover flange Modular cast iron Seat/Inner valve Stainless Steel Valve stem seal EPDM (O-ring) Electrical connections Cable entries 3 M0 1.5 or PG13.5/G1/ Connection terminals Screw terminals for up to 1 AWG wires Min. cross-sectional area 3) 0.75 mm Max. cable length See Table 1 Ambient conditions Temperature Operation and storage 3 F to 113 F (-5 C to 45 C) Transport -13 F to 158 F (-5 C to 70 C) Humidity 5 to 95% rh (non-condensing) 1. Tested at 1.5 PN (4 bar), similar to DIN Can be selected via DIP switch. 3. In case of strong vibrations, use high-flex stranded wires. Siemens Building Technologies, Inc. Page 7

29 Document Number June 17, 008 MVF461H Series Modulating Control Valve with Magnetic Actuator Specifications, Continued Agency approvals Degree of protection IP31 to IEC 59 Canadian registration number 0C Conforms to CE requirements UL 873 Certified to Canadian standard C. No. 4 C-Tick N-474 PED 97/3/EC: pressure-carrying parts Par. 1, section..1.4/par. 3, section 3 Fluid group Miscellaneous Weight See Figure 15 Dimensions See Figure 15 Connection Terminals WARNING: If the controller and the valve receive their power supply from separate sources, the valve transformer must not be grounded on the secondary side. Controllers with: 0 to 10 Vdc to 10 Vdc 0 to 0 ma 4 to 0 ma SSEN0346R1 Controller G0 G A four-wire connection is mandatory with DC power supply. Y M F Transformer U G0 G Y M U Z System neutral (SN) AC/DC 4 V Operating voltage System potential (SP) 0 to 10Vdc / to 10Vdc Control signal 0 to 0 ma / 4 to 0 ma Measuring neutral (= G0) 0 to 10Vdc / to 10Vdc Positioning feedback signal 0 to 0 ma / 4 to 0 ma Override input Controllers with phase-cut 0 to 0 Vdc Transformer Figure 11. Controller F SSEN0347R1 G0 G U G0 G Y M U Z System neutral (SN) AC/DC 4 V Operating voltage System potential (SP) 0 to 10Vdc / to 10Vdc 0 to 0 ma / 4 to 0 ma Control signal Measuring neutral (= G0) 0 to 10Vdc / to 10Vdc Positioning feedback signal 0 to 0 ma / 4 to 0 ma Override input 0 to 0Vdc Phase-cut signal Figure 1. Page 8 Siemens Building Technologies, Inc.

30 MVF461H Series Modulating Control Valve Technical Instructions with Magnetic Actuator Document Number June 17, 008 Application Examples This example shows only a schematic diagram, without installation-specific details. CAUTION: Valve may only be used in flow direction (A AB). Note the flow direction. SSEN010R1 SSEN0119R1 Service Figure 13. Direct Heating (Supply) System, Indirect Connection. Figure 14. Direct Heating (Supply) System, Directly connected to Water- Heating System. CAUTION: Do not disassemble the valve and actuator combination. This assembly is factory-calibrated, and should only be replaced by qualified personnel. Always disconnect power before fitting or removing the electronics module. The low-friction and robust, maintenance-free design makes regular servicing unnecessary and ensures a long service life. The valve stem is sealed from external influences by a maintenance-free gland. If the red LED is lit, the electronics must be recalibrated or replaced. If the valve electronics are faulty, they must be replaced. After replacing the electronics, they must be recalibrated. See Calibration. If required, the circuit board can be replaced. Order Part Number ASE1. Siemens Building Technologies, Inc. Page 9

31 Document Number June 17, 008 MVF461H Series Modulating Control Valve with Magnetic Actuator Dimensions min (100) 1.97 ł 50 F ł E H B ł D A AB ł K ł D SSEN0348R1 L Figure 15. Dimensions in Inches (Millimeters). Product Number DN L ØD ØD B ØK H ØE F W lb (kg) MVF461H (130) MVF461H (130) MVF461H (130) MVF461H (150) MVF461H (160) MVF461H (180) MVF461H (00) MVF461H (30) 3.74 (95) 3.74 (95) 3.74 (95) 4.13 (105) 4.53 (115) 5.51 (140) 5.91 (150) 6.50 (165) (4 14) (4 14) (4 14) (4 14) (4 14) (4 18) (4 18) (4 18) 0.55 (14) 0.55 (14) 0.55 (14) 0.63 (16) 0.63 (16) 0.71 (18) 0.71 (18) 0.79 (0).56 (65).56 (65).56 (65).95 (75) 3.35 (85) 3.94 (100) 4.33 (110) 4.9 (15) 13.4 (340) 13.4 (340) 13.4 (340) 13.3 (339) 13.6 (346) 15.1 (384) (401) (449) (100) 3.94 (100) 4.9 (15) 4.53 (115) 4.53 (115) 4.53 (115) 4.53 (115) 4.53 (115) 4.9 (15) 4.9 (15) 5.43 (138) 18.3 (8.3) 18.3 (8.3) 18.3 (8.3) 19.6 (8.9).1 (10.0) 34.6 (15.7) 39. (17.8) 60.0 (7.) Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. Other product or company names mentioned herein may be the trademarks of their respective owners. 005 Siemens Building Technologies, Inc. Siemens Building Technologies, Inc Deerfield Parkway Buffalo Grove, IL U.S.A. Your feedback is important to us. If you have comments about this document, please send them to sbt_technical.editor.us.sbt@siemens.com.com Document No Country of Origin: US Page 10

32 Technical Instructions Document No. CA1N4454E-P5 January 17, 003 M3P FY Series Modulating Control Valve ANSI 15 (PN 16) with Magnetic Actuator for Hot and Chilled Water with Positioning Control and Position Feedback Description Mixing or straight-through valves with magnetic actuators for modulating control of hot and chilled water systems. Features Fast positioning time (<1 second) High resolution (>1: 1,000) High rangeability 1 3 closed when de-energized Positioning control and position feedback Low friction, heavy-duty and maintenance-free Product Numbers Table 1. Product Number Line Size (in) q AWG Cv ' pv max PN Pmed (gpm) (psi) (bar) (VA) (VA) L (ft) M3P80FY M3P100FY p v max = Maximum admissible pressure differential PN = Nominal power Pmed = Mean operating power kvs = Flow rate, tolerance ±10% q = Cross section of wire L = Maximum cable length. With 4-wire connections, the maximum permissible length of the separate 16 AWG Cu signal cable is 650 feet. Siemens Building Technologies, Inc.

33 Document No. CA1N4454E-P5 January 17, 003 M3PFY..Series Modulating Control Valve ANSI 15 (PN 16) with Magnetic Actuator Warning/Caution Notations WARNING: CAUTION: Personal injury or loss of life may occur if you do not perform a procedure as specified. Equipment damage or loss of data may occur if you do not follow a procedure as specified. Application The M3P...FY valves are mixing or straight-through port valves with a ready-mounted magnetic actuator. The actuator has electronics for positioning control and position feedback. If the power is off, the valve control path 1 3 is closed. CAUTION: The valve is suitable for straight-through or three-way applications and may be installed only in a mixing arrangement. The short positioning time, high resolution and high rangeability make these valves ideal for proportional control of hot and chilled water systems. The low-friction, heavy-duty and maintenance-free construction makes regular service unnecessary. Ordering Technical/ Mechanical Design The valves are supplied with the magnetic actuator and terminal housing. The blank flanges required for straight-through applications must be ordered separately (see Accessories). When placing an order, specify the quantity, product number and description. Example: 1 M3P80FY flanged valve and 1 Z155/80 blank flange The control signal is converted in the terminal housing into a phase cut signal that generates a magnetic field in the coil. This causes the only moving part, the armature, to change its position in accordance with the interacting forces (magnetic field, counterspring, hydraulics, etc.). The armature responds rapidly to any change in signal, transferring the corresponding movement directly to the control disc, enabling fast changes in load to be corrected quickly and accurately. The valve position is measured continuously. Any disturbance in the system is rapidly corrected by the internal positioning controller, which ensures that the control signal and the valve stroke are exactly proportional, and also provides a feedback signal indicating the valve position Sval001R Figure 1. Position-signal. Page Siemens Building Technologies, Inc.