AERCO MXG-461 Series Control Valve - Manufactured by Siemens - Manual (Page 7)

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Siemens Modulating control valves with magnetic actuators, PN16 CA1N4455en
Building Technologies 15.12.2009
Viscosity may change considerably on temperature changes depending on the
medium. Plant functionality may be impaired if the medium temperature does not
guarantee viscosity values compatible with troublefree valve functioning.
Kinematic viscosity
υ [mm 2 /s] in HVAC plants always is lower than 10 mm 2 /s, i.e. its
influence on volume flow is negligible.
For details please contact your local Siemens branch office.
Equal percentage Linear
Volumetric flow Volumetric flow
10 [V]
10 [V]
20 [mA]
8 6 4 2 0
2
4
100
80
60
40
20
0
[%]
y
44
55
D
02
6
12
y
y
10 [V]
10 [V]
20 [mA]
8 6 4 2 0
2
4
100
80
60
40
20
0
[%]
y
44
55
D
03
6
12
y
y
Positioning signals Positioning signals
The 4-wire connection should always be given preference!
S
NA
P
MED
S
TR
I
F
Cross-sectional area [mm 2 ]
1,5 2,5 4,0
Type reference [VA] [W] [VA] [A] max. cable length L [m]
MX..461.15-0.6
MX..461.15-1.5
MX..461.15-3.0
MX..461.20-5.0
MX..461.25-8.0
MX..461.32-12
29 5 50 3,15 70 110 170
MX..461.40-20
MX..461.50-30
44 40 70 110
MXF461.65-50 46
6 75 4
30 50 80
S
NA
= nominal apparent power for selecting the transformer
P
med
= typical power consumption
S
TR
= Minimal required transformer power
I
N
= required slow fuse
L = max. cable length; with 4-wire connections, the max. permissible length of the separate
1.5 mm 2 copper positioning signal cable is 200 m
1) All information at AC 24 V
Engineering notes
Conduct electric connections in accordance with local regulations on electric
installations as well as the internal or connection diagrams.
Observe safety regulations and restrictions designed to ensure the safety of
people and property at all times!
Fit a strainer upstream of the valve to increase reliability.
Note on viscosity
Kinematic viscosity
≤ 10 mm 2 /s
> 10 mm 2 /s
Valve characteristic
Connection type 1)
4-wire connection
Attention