User Manual

7 / 14
Siemens Modulating refrigerant valves, PN 63 A6V11160433en / A5W00038735
Building Technologies 2018-07-17
Mounting notes
Use only properly qualified technicians to mount and commission the valve. The same
applies to replacement electronics and configuring the controller (e.g. SAPHIR or Poly-
Cool).
Comply with all requirements per EN 60079-14 for use/installation of the valve.
Additional installation notes may also need be observed as well as the use of proper
safety elements (e.g. pressure switches, motor protection) depending on the particular
application..
90°
4716Z16
90°
∂ The refrigerant valves can be mounted in any orientation, but
upright mounting is preferable.
∂ Arrange the pipe work in such a way that the valve is not lo-
cated at a low point in the plant where oil can collect.
∂ The pipes should be fitted in such a way that the alignment
does not distort the valve connections. Fix the valve body so
that that it cannot vibrate. Vibration can lead to burst connec-
tion pipes.
∂ Before welding/soldering the pipes, ensure that the direction of
flow through the valve is correct.
∂ The pipes must be welded/soldered with care. To avoid dirt
and the formation of scale (oxide), inert gas is recommended
for welding/soldering.
∂ The flame should be large enough to ensure that the junction
heats up quickly and the valve does not get too hot.
∂ The flame should be directed away from the valve.
∂ During welding/soldering, cool the valve with a wet cloth, for
example, to ensure that it does not become too hot.
∂ Port B must be sealed off when a 2-port valve (AB ⇓ A) is
used.
∂ The valve body and the connected pipe work should be
lagged.
∂ The actuator must not be lagged.
∂ The valve has a mechanical shut-off function that is Normally
Closed (NC) without power. This must be observed during
commissioning and servicing work.
The valve is supplied complete with Mounting Instructions A5W00034456.
II 3G