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4
The LED is on and steady. Change the board.
7.5
Cleaning the plate heat exchanger
We recommend cleaning the plate exchanger annually in
order to maintain optimal performance.
1. Remove the front panel by pulling firmly from both sides.
2. Turn off the domestic cold water inlet.
Open the drainage valve (bottom of the DHW tank).
Open the DHW vent above the DHW pump (A).
Drain the plate exchanger on the boiler side
¼
Refer to the installation and maintenance instructions of the
boiler
M002415-C
1
M002679-A
B
A
7. Checking and maintenance
100 HL
27
22/08/2014 - 300026877-001-02