User Guide

Mounting instructions

The valve should be mounted and commissioned by qualified staff. The same applies

to the replacement electronics and the configuration of the controller.

Comply with requirements per EN 60079-14 for use / installation.

Note additiona

l installation notes depending on application and use the appropriate

safety elements (e.g. pressure control, motor full protection).

90°

00441

• The refrigerant valves can be mounted in any orientation, but

upright mounting is preferable.

• Arrange the pipework in such a way that the valve is not

located 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

connection pipes.

• Before soldering the pipes, ensure that the direction of flow

through the valve is correct.

• The pipes must be soldered with care. To avoid dirt and the

formation of scale (oxide), inert gas is recommended for

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 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 pipework should be lagged.

• The actuator must not be lagged.

Connection terminals

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Siemens Refrigerant Valves PS45 CE2Q4714en

Building Technologies 29.02.2012