Ronix RH-4020 Bedienungsanleitung Seite 20

When you have completed the operation, screw the plug back in again
and start the pump. The pump should be primed again whenever it has
not been used for a long period of time or when air has made its way into
the system.
IMPORTANT:
Never run the pump empty. If this happens by mistake, switch the pump
off, wait for it to cool down and then prime it using clean water.
MAINTENANCE:
Our pumps do not require any maintenance provided one takes the following
precautions; When there is a risk of freezing, empty the pump through
the drain plug on the bottom of the pump body, making sure you prime
it when subsequently starting it again; check that the foot valve is clean
at regular intervals; if the pump is to remain unused for a long period of
time (e.g.in the Winter),it is advisable to empty it completely, rinse it with clean
water and store it in a dry place;
Never carry out any work on the pump without having first disconnected
it from the mains supply.
20
Peripheral Pump 0.5hp