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3.9
Preparing for extended peri-
ods of disuse
If the combination storage cylinder is not
going to be used for an extended period of
time, prepare it for shut-down as follows:
- Shut down the boiler as instructed in its own
manual
- Turn the system's main power switch OFF
- Drain the solar water circuit
- Close the fuel cock and heating water cock.
b
Drain the domestic hot water (and cen-
tral heating) circuit if there is any risk of
freezing.
Contact your local BERETTA Technical
Assistance Centre if you encounter any prob-
lems in completing the above procedure.
3.10
18
Maintenance
Scheduled maintenance is essential for the safety, efficiency and long working life of your com-
bination storage cylinder. Proper maintenance also reduces energy consumption and ensures
reliability over time. Have your combination storage cylinder serviced either by a BERETTA
Technical Assistance Centre or by a qualified professional at least once a year.
Perform the following operations before begin-
ning any maintenance:
- Switch the electricity supply to the storage
cylinder's valve group and to any associ-
ated boiler OFF at the main switch and at
the control panel
- Close the shut-off cocks for the domestic hot
water circuit
- Drain the storage cylinder's secondary
water circuit.
Fig. 3.12
Fig. 3.13
Fig. 3.14
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