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Valve energised (open).
The 3-way motorised valve opens within approx. 3 minutes, allowing through passage from I to II.
•
The position indicator is fully visible (
•
Fig. 5
Position indicator when valve is energised.
As soon as the power to the motorised 3-way valve is switched off, it connects through to III again.
•
The repositioning time is once again approx. 3 minutes.
Opening valve manually
In order to fill, bleed or drain the system, the valve can be opened manually.
B Remove the valve positioner
This allows the fluid to flow from I to II.
1.
6720613626.06-1.SD
Fig. 6
Removing the valve positioner
Fig. 5).
6720613626.04-1.SD
2.
6 720 644 593 (2010/04)
INSTALLATION (FOR ENGINEERS ONLY)
13
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