Temporary Or Short-Term Shut-Down; Preparing For Extended Periods Of Disuse; Maintenance - Beretta POWER MAX 50 P DEP Installation And Operation Manual

3 7 Temporary or short-term shut-
down
In the event of temporary or short-term shut-down (e.g. due
to holidays), proceed as follows:
- Disconnect the power supply by positioning the ther-
mal module 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.
3 8 Preparing for extended periods
of disuse
The following operations shall be necessary if the POWER
MAX modular system is not used for a long period of time:
- Turn the main switch of the thermal modules and the
main system switch to "off"
- Close the fuel and water valves for the heating and
domestic hot water system.
48
b
Empty the thermal and sanitary system if there is a
danger of frost.

3 9 Maintenance

It is mandatory to perform maintenance and cleaning of the
device at least once a year.
b
The non-performance of the annual maintenance will
invalidate the warranty.
This operation, carried out by Technical Assistance Cen-
tre or by professionally qualified personnel, is necessary to
monitor and ensure that the flue pipes inside and outside
of the device, the fan, the safety valves, the condensate re-
moval devices, the water drainage tubes and all the meas-
urement and control devices are in perfect working order.
Table of the compulsory maintenance activities (to be
performed every 2000 working hours or at least once
a year)
Make the combustion test
Check the conditions of the inlet pipes (if present) and
the flue pipes by making sure that no leakage is present
Check the ignition electrode
Clean the combustion chamber and check the condi-
tions of the gaskets you have dismantled during such
operation
Clean the condensate discharge pipe
Check the parameters settings
Check if there is any gas leakage
Check if there is any leakage on the hydraulic connec-
tions
Check the integrity of the cabling system and its related
connections
Make sure the ignition takes place regularly
Make sure that there is the flame after ignition
Check the safety devices down the equipment
Check the system pressure
b
Before carrying out any maintenance or cleaning, dis-
connect the power from the device by turning off the
bipolar main switch and closing the main gas valve.
In addition, for all maintenance (to be carried out at
least once a year, as noted above) always replace all
the flue and gas seals, in particular the burner seals.
Before performing any operation:
- disconnect the electric power supply by turning the
main system switch to "off"
- close the gas shut-off valve.