Vetus D-LINE VD4.120 Operation Manual page 76

6 Maintenance
1
55 Draining the coolant
• Remove the drain plug in the heat exchan-
ger housing to drain the coolant.
74
18
• Remove the filler cap to bleed the cooling
system and check that all the fluid is run-
ning out.
• Refit the drain plug after all the liquid has
run out.
Cleaning the heat exchanger
56 Disconnecting raw water hoses
• Close the tap of the raw water supply.
• Disconnect both raw water hoses.
1,2 x 6,5 7