SATK22
24
Maintenance
All maintenance procedures should be carried out by an
authorised technician. Regular maintenance guarantees better
efficiency and helps to save energy.
Before carrying out any maintenance, repair or part
replacement work, proceed as follows:
•
Switch off the electricity supply
•
Remove the cover
•
Close the shut-off valves
•
Empty the heat interface unit using the drain cocks provided.
Exchanger replacement
•
As a preliminary step, remove the flow sensor (refer to
“replacing the DHW priority flow meter”) and position it
where it cannot be reached by any dripping liquid.
•
Remove the exchanger, loosening the 2 hex socket head
screws fixing it in place (A)
•
Replace the exchanger and the ‘O’ rings.
•
Tighten the two fixing screws (A) after having checked that
the ‘O’ rings are correctly positioned. Tightening torque 3 to
3.5 Nm
N.B.
Make sure to respect the correct orientation of the plate
heat exchanger when re-fitting it.
A
A
A
A
