Art.-Nr. 908.30.62.00
Stand 11/2015
- 32 -
6
O p e r a t i o n
6.1
Control unit
Observe the installation and operating instructions for the control unit used.
6.2
Gravity brake
A gravity brake is integrated in the supply ball valve [2] to prevent incorrect circulation in the
primary circuit. Turn the handle to operate it.
Operating position, gravity brake closed
Operating position:
To prevent circulation under the force of
gravity the valve head must not be opened.
The ball valve handle is vertical.
The gravity brake is closed.
Service position, gravity brake open
Service position, bleeding/filling:
Slightly open the valve head on the gravity
brake to fill and completely drain the primary
circuit.
The gravity brake is opened by turning the ball
valve handle clockwise.
The handle is positioned in 45° position, the
gravity brake is open.
6.3
Settings
Set the fresh water
Observe the installation and operating instructions for the control unit.
Summary of Contents for FRIWA 30
Page 2: ...Deutsch...
Page 19: ...English...
