Temporary Or Short-Term Shut-Down; Preparing For Extended Periods Of Disuse; Cleaning; Maintenance - Beretta POWER MAX Installation And Operation Manual

4.2 Temporary or short-term shut-down

In the event of temporary or short-term shut-down (e.g. due to holi-
days), proceed as follows:
- Disconnect the power supply by positioning the thermal mod-
ule switch and the system's main switch to "off".
- If there is a danger of frost, keep the system on. To reduce fuel
consumption, set the heating set point to the minimum allowed
value.
4.3 Preparing for extended periods of
disuse
The following operations shall be necessary if the thermal module is
not used for a long period of time:
- turn the main switch of the thermal modules and the main sys-
tem switch to "off"
- Close the fuel and water valves for the heating and domestic
hot water system.
62
b
Empty the thermal and sanitary system if there is a danger of
frost.

4.4 Cleaning

Use a cloth damped in soapy water to clean the boiler's external cas-
ing.
To remove stubborn marks, use a cloth damped in a 50% mix of wa-
ter and denatured alcohol or a suitable cleaning product.
Carefully dry after cleaning.
a
Do not use abrasive cleaning pads or powder detergents.
a
Never clean the boiler without first disconnecting it from the
mains electricity supply by turning the mains power switch and
the control panel switch OFF.
b
The combustion chamber and flue pipes must be cleaned pe-
riodically by the manufacturer's Technical Assistance Centre
or by a qualified heating engineer.

4.5 Maintenance

Please remember that THE PERSON RESPONSIBLE FOR SYSTEM
MANAGEMENT MUST ENSURE THAT PROFESSIONALLY QUAL-
IFIED HEATING ENGINEERS UNDERTAKE PERIODIC MAINTE-
NANCE AND COMBUSTION EFFICIENCY MEASUREMENTS.
's Technical Assistance Centre is qualified to satisfy these legal
B
requirements and can also provide useful information on MAINTE-
NANCE PROGRAMMES designed to guarantee:
- Greater safety
- Compliance with applicable legislation
- Freedom from the risk of fines in the event of spot checks.
Regular maintenance is essential for the safety, efficiency and dura-
bility of the boiler.
Servicing is a legal requirement and must be performed at least once
a year by a professionally qualified heating engineer.