CALEFFI Z-one Z3 Series Manuale - Pagina 3
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Installation
The valve can be installed vertically or horizontally, but not turned upside down.
- A 3-way valve cannot be transformed into a 2-way valve and vice versa.
- The flow is from A to B (see diagram below) and must be installed so the paddle
closes against the direction of flow as indicated in the following diagrams.
- The 2-way valves can be installed on the
supply or on the return; for correct
installation it is necessary to respect the
direction of flow indicated from the arrow
on the body valve.
A
2-way valve with normally closed actuator
B
2-way installed on the supply
2-way installed on the return