Technical data

51
08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI
2.6 Cleaning the plate exchanger (for MCR ... MI)

Maintenance and cleaning of the heater must be carried out
at least once a year by a qualified technician.

Cut the power supply to the boiler.

Cut off the cold water supply and drain the DHW tank.

Bleed the boiler.

Unscrew the 2 screws.

Remove the exchanger.

Clean the plate heat exchanger with a descaling product (citric
acid pH 3). A special tool (accessory available as an option) can be
used (See:Spare parts centre).
Rinse with clean water.

Remove the flow switch. If necessary, clean or replace the
flow switch. Rinse with clean water.