Vetus D-LINE VD4.120 Operation Manual page 78

6 Maintenance
59 Cleaning the heat exchanger
• Clean the heat exchanger: Use a pipe clean-
er to remove fouling in the pipes.
• Then rinse the heat exchanger pipes with
clean water.
76
• Ensure that both contact surfaces of the
heat exchanger are free from dirt.
Cleaning the heat exchanger
• Clean the contact surfaces of the O-ring
and gaskets.