Basic Documentation

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Description
TheMagneticMX..MixingValveusesmagneticactuationto
enhanceresponsetimeandprovidestability.Largesignalchanges
switchtheactuatortothelargesignalband,allowinghigh-gain
responsetoquicklypositionthevalveelement.Smallsignalchanges
switchtheactuatortothesmallsignalbandtoprovideloopstability
andprecisepositioning.
Features
• Fastpositioningtime(<2seconds)
• 1000:1resolution
• Magneticactuation
• Nomaintenance
• Manualoverride
• Autocalibration
• Dipswitchselectablesignalinput(0to10Vor4to20mA)
• Dipswitchselectableowcharacteristic
• Built-inpositionfeedback
Applications
TheMagneticMX..MixingValveisdesignedformodulatingcontrol
ofchilledwaterandlow-pressurehotwaterandiswellsuitedfor
HVACsystems.
Thevalvescanbeconguredforstraight-throughor3-way
applicationsandcanbeusedinclosedloopapplications.Valves
areshippedwithNPTscrewedttings.Aangedversionisalso
availableinthe2-1/2”linesize.
Wiring Diagram
Specications
Operating Voltage ..........................................................................24Vac
Nominal Power
 1/2-1-1/4" ............................................................................. 29VA(5w)
 1-1/2-2" ................................................................................ 44VA(6w)
 2-1/2" .....................................................................................46VA(6w)
Frequency ...................................................................50/60Hz+20/–15%
Control Signals ..............................0to10Vdc,2to10Vdc,or4to20mA
Position Feedback Signal..................0to10Vdc;LoadResistance>500Ω
Materials
 Body ......................................................................................... CastIron
 Plug ....................................................................................... CrNiSteel
 Seat ................................................................................................ Brass
 Bellows .......................................................... Tombac,Bronze,CrNiSteel
Packing
 NormalDuty ..................................................................... EDPM(O-ring)
Max. Pressure
p
e
max ......................................................................................150psig
 Max.DifferentialPressure .............................................................. 44psi
Temperature of Medium .................................. 34°to266°F(1°to130°C)
Resolution ..................................................................................... 1000:1
Position with Actuator De-energized ................................. A →ABClosed
Positioning Time ..................................................................... <2Seconds
Agency Approvals ........................................UL873,cULCSAC22.2No.24
Flow Characteristics ........................................ LinearorEqualPercentage
Environmental Protection .....................................................NEMAType1
Control Valves for Hot and Chilled Water
+
1
2
3
4
5
6
U
2-10 VDC
0-10 VDC
24 VAC
4-20 mA
24
VAC
G0
G
Y
YM
X
YF
MX...461...
1
2
3
4
5
6
24
VAC
G0
G
Y
YM
X
YF
MX...461...
±
Sval00228R1
Connection to Controller with Four-wire Output.
U = Indication of valve position (only where required).
0 to 10 Vdc
→ 0 to 100% volumetric ow