4 Maintenance
VD01020
6
VD01021
52 Remove heat exchanger
Slide the heat exchanger out of the hous-
ing.
Cleaning the heat exchanger
STM7217
53 Cleaning the heat exchanger
Clean the heat exchanger: Use a pipe
cleaner to remove fouling in the pipes.
Then rinse the heat exchanger pipes with
clean water.
Ensure that both heat exchanger end
chambers are free from dirt.
45