Riello 20127839, Installation And Technical Service Instructions

Page: 22 / 28

22
COMMISSIONING AND MAINtENANCE
ON
OFF
— position the system's main switch in the "OFF" position.
3.5 Ordinary maintenance
Routine maintenance is fundamental for keeping the equip-
ment efficient, safe and reliable. It can be performed periodi-
cally by the Technical Support Service, whose staff is technically
qualified and can use genuine spare parts, if necessary.
9
Original conditions must be restored after performing the
required maintenance operations.
9
All described operations MUST be carried out under the fol-
lowing conditions:
— cold device
— device NOT supplied with electric power
— suitable personal protection equipment
0
Do not open the access covers and carry out technical or
cleaning activities before disconnecting the unit from the
power grid by positioning the system's main switch in the
"OFF" position
Monthly operations
The following checks are part of the monthly maintenance plan:
—
cleaning the housing and front panel
— mesh filter cleaning
Cleaning the housing and front panel
— wet a sponge or soft cloth with water and soap to wash
— once cleaning is over dry surfaces with care
9
Do not use water at a temperature that is higher than 40°C,
powder or abrasive detergents, solvents and brushes.
Mesh filter cleaning
1 Mesh filters
1
— open the front panel
— take out the mesh filter by grabbing the relevant fins
— remove exhausted purifying filters if present
—
remove dust with an vacuum cleaner
9
Stubborn dirt can be removed by washing the filter in a luke
warm (max. 40 °C) solution of water and neutral detergent.
After washing, rinse the filters well and leave to dry in the
shade.
9
Exposing the filters to the sun or washing them with water
at a temperature that is higher than 40 °C can cause the
filters to shrink.
0
It is forbidden to use the device without mesh filter.
Yearly operations
The annual maintenance plan includes the following checks:
—
power supply voltage
— electric connection tightening
— status of cooling and hydraulic joint
— condensate tray cleaning
— electric absorption
Purifying filter replacement
To replace the filters:
1 Mesh filters
1
— open the front panel
— take out the mesh filter by grabbing the relevant fins
1 Mesh filters
2 Air purifying filter
2
1