Dantherm HCV 3 Faq Seite 6

How to replace the heat exchanger
When?
Tools
Important!
Illustration
Caution!
Procedure
6
The heat exchanger only needs to be replaced if it is faulty, e.g. visible damages.
Make sure you have the following tools ready before you begin:
 Torx 10 screwdriver
 3 mm hex key
 Only trained and certified personnel is allowed to replace parts
 Turn off all power to the unit before starting the work
 Make sure that all work has been carried out before the power is switched back on
 Be sure to observe ESD measures to avoid damaging the PCB due to static electricity
This drawing illustrates where the heat exchanger is located:
It is important to be careful when working inside the unit to avoid breach on the styrene
kernel!
Follow this procedure to replace the heat exchanger:
Step
1 Switch off power to unit
2 Tilt the upper front door up and dis-
connect the lower front door by the
removal of the two Torx 10 screws
Action
Continued overleaf