4.10. Plate Exchanger
Subject
Description
Function of Part
It enables the water heated in the main exchanger to transfer
heat to the domestic water during domestic water heating.
Impact in Case of Malfunction
The domestic water and the central heating water may mix.
The water pressure in the installation may drop. Dirty water
may come from the domestic water.
Main Associated Error Codes
E03, E80, F37
Diagnostics and Test Method
1- Visually inspect the plate exchanger for water leakage.
2- Check whether there is a drop in the water pressure in the
installation when the domestic water is turned on.
Maintenance Requirement
Interior cleaning of plate during annual routine maintenance
Maintenance Definition
Maintenance Method
Interior cleaning of plate
1- The plate exchanger is removed.
2- Descaling agent (HN03) is filled into the plate
exchanger and waited for 10 minutes.
3- The descaling agent is drained and the inside of the
plate exchanger is washed with water.
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