3 Product description
10
99453x0333x-mub-en – V02
2017/02
3.4
Check valve
The HeatBloC is equipped with a check valve (B-1) in the flow pipe and with a non-return valve
(C-1) in the mixing valve. The valves can be opened.
Operation
During operation, the marking must be directed to "Z".
The check valve is closed.
Flow only in the direction of the arrow.
Filling, draining, venting
For filling, draining and venting the installation, the marking
must be directed to "A".
The check valve is open.
Flow in both directions.