3 Product description
10
994536093x-mub-en – V01
2017/02
3.5.3
Pump settings Wilo-Yonos PARA RSTG
The rotary knob of the pump must be set to the following symbol.
The LED ring is illuminated in orange. Please observe the separate
instructions of the pump!
3.6
Check valve
The HeatBloC is equipped with a check valve (D) in the return pipe and with a non-return valve
(D-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.
