Honeywell HR 40 F Mounting And Operation Instructions page 11

Turn the adjusting ring of
►
the valve lantern (1) further
to the right until the final
stop is reached.
The radiator
closed. With the central
heating switched on, the
radiator cools down.
The valve lift between the left-hand stop (open) and the right-
hand stop (closed) has to amount to at least ¾ of a rotation.
valve is
À
Mounting
9