DE DIETRICH 200 SSL - Manual (Page 14)

5 Checking and maintenance
5.1 General instructions
CAUTION
4
Maintenance operations must be done by a qualified
engineer.
4
Only original spare parts must be used.
5.2 Safety valve or safety unit (Domestic hot water circuit)
The valve or safety assembly must be operated at least once a
month
in order to ensure that it is operating correctly and to prevent
possible overpressure which would damage the DHW tank.
WARNING
Failure to comply with this maintenance rule may cause
deterioration of the DHW tank and the cancellation of the
guarantee.
WARNING
Only operate the valve (red head) on the DHW circuit. Do
not operate the valve (yellow head) on the solar circuit.
5.3 Cleaning the casing material
Clean the outside of appliances using a damp cloth and a mild
detergent.
5.4 Sacrificial anode
Have the condition of the anode checked after the first year. The
magnesium anode must be checked by a qualified professional at
least every 2 years.
5.5 Inspection and maintenance of the solar circuit
We recommend that you take out a maintenance contract
providing for an annual or biannual check of the fluid level,
the antifreeze protection, the pressure of the installation
and the expansion vessel, its tightness and its general
running.
5. Checking and maintenance 200 SSL
13 01/08/2013 - 300028225-001-02