User Manual

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Siem ens Modulating control valves with magnetic actuators, PN 16 CA1N4455en
Building Technologies 2018-02-05
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.
Do not touch hot surfaces.
Avoiding flow noise
To reduce flow noise, abrupt reductions in pipe diameters, tight pipe bends, sharp
edges or reductions in the vicinity of valves should be avoided. A settling path should
be provided.
Recommendation:
∂ L ≥ 10 x DN, at least 0.4 m
Also, the flow must be free from cavitation
Mounting notes
Mounting and operating instructions are printed on the actuator and on the electronics
module.
The valve may only be used as a mixing or throughport valve, not as a diverting
valve. Observe the direction of flow!
A strainer should be fitted upstream of the valve. This increases reliability.
90°
4455Z11
90°
IP54
IP54
Degree of protection valid only with M20 cable gland
supplied by the installer.
It is essential to maintain the specified minimum clearance above and to the side of the
actuator and/or electronics module! (refer to "Dimensions", page 14)
DN 15…32 = 100 mm
DN 40…65 = 150 mm
Only three-way MX..461.. valves are supplied. They may be used as straight-through
valves by closing off port "B".
Port "B" can be sealed with the accessories
supplied (cover, gasket) and the union nut of the
ALG..3 coupling.
4455Z13
Port "B" can be sealed with part Z155/.. which must
be ordered as a separate item.
The part comes complete with blank flange, seal,
screws, spring washers and nuts.
DN 15…32 blank flange (Z155/15F..Z155/32F)
DN 40…65 blank flange (Z155/40..Z155/65)
4455Z12
Attention
Caution
Orientation
Access for installation
Use as straight-through
valves
MXG461.. threaded
valves in straight-
through applications
MXF461.. flanged
valves in straight-
through applications