De Dietrich MS 24 MI [91/332] Dismounting the water water heat exchanger

De Dietrich MS 24 MI [91/332] Dismounting the water water heat exchanger
91
71.03982.03 - EN
INSTALLATION INSTRUCTIONS
The stainless steel plate-type water-water heat exchanger can be disassembled with a hex wrench by operating as de-
scribed below:
drain the system, just the boiler if possible, through the drain tap;
drain the DHW system;
unscrew the pipe connecting the expansion vessel to the hydraulic assembly;
remove the heating pressure switch (16H) without disconnecting the cable harness;
remove the two screws (g. 16B) at the front securing the water-water heat exchanger and pull it out using the space
created after removing the heating pressure switch;
clean the heat exchanger and put it back in place;
screw on the pipe connecting the expansion vessel to the hydraulic assembly;
put the hydraulic pressure switch back in place.
32. DISMOUNTING THE WATER-WATER HEAT EXCHANGER
WARNING
Pay great attention when dismantling the individual parts of the hydraulic assembly.
Do not use sharp tools, do not apply excessive force when removing the xing clip.
Figure 16
CG_2078 / 1009_2201

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