Beretta IDRA N DS 1500, Руководство по установке

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ON
OFF
Preparing for extended periods of disuse
Maintenance
Scheduled maintenance is essential for the safety, efficiency and long working life of your solar storage cylinder. Proper
maintenance also reduces energy consumption and ensures reliability over time. Have your storage cylinder serviced
either by a Technical Assistance Centre or by a qualified professional at least once a year.
Perform the following operations before beginning any
maintenance:
- Switch the electricity supply to the storage cylinder’s
valve group and to any associated boiler OFF at the
main switch and at the control panel.
- Close the shut-off cocks for the domestic hot water
circuit.
- Drain the cylinder’s secondary water circuit.
If the solar storage cylinder is not going to be used for
an extended period of time, perform the following ope-
rations:
- Drain the solar water circuit.
- Close the shut-off cocks for the domestic hot water
circuit.
- Shut down the boiler as instructed in its own manual.
- Turn the system’s main power switch OFF.
b
Drain the domestic hot water (and central
heating) circuit if there is any risk of free-
zing.
Contact your local Technical Assistance Centre if you
encounter any problems in completing the above pro-
cedure.