145
1111 M
MAANNU
UTTEENNZZIIO
ONNEE
A
Grandezze HS004 - HS006
Grandezze HS008 - HS016
O
Ouuttddoooorr uunniitt aaiirr ccooiill
Accidental contact with the exchanger flaps can cause injuries
from cut: use protective gloves.
The coil must allow maximum thermal exchange, therefore, the
surface must be clear from dirt and scaling.
Clean the air inlet side.
Use a soft brush or aspirator or pressurised air jet or high-
pressure water jet machine.
Keep the direction parallel to the flow of the flaps to avoid
damages.
Check the aluminium flaps have not been damaged or folded, on
the contrary contact an authorised after-sales assistance centre
to "comb" the coil for excellent air flow.
O
Ouuttddoooorr uunniitt ccoonnddeennssaattee ddrraaiinn
Dirt or scale can give rise to clogging.
Also, microorganisms and mould can flourish in the bowl.
Foresee periodical cleaning with suitable detergents and,
eventually, disinfect with sanitising products.
Once cleaning is completed, pour water inside the bowl to check
the regular outflow.
A - Condensate discharge connection
1111 M
MAANNU
UTTEENNZZIIO
ONNEE
A
B
PPeerriiooddiicc ssyysstteem
m cchheecckkss
•
Charge check of expansion tanks
•
Water filter cleaning check
•
Check system and aqueduct operating pressures
EExxppaannssiioonn vveesssseell
Check the expansion vessel charge (at least once a year).
First check that the expansion vessel is totally drained of water.
If you necessary load with nitrogen, take care that the pressure
does not exceed the value indicated on the label.
SSaafftteeyy vvaallvveess
The safety valves must be checked regularly.
Almost all losses are caused by impurities deposited inside the
valve.
It
’
s normal if some water drops from the hole of saftey valve
during operation.
But, if there is a great amount of water, call your service agent
for instructions.
Please beware of burn, beware of the hot water from the valve.
To carry out a wash:
•
manually open the valve
•
rotate the knob in the sense indicated by the arrow in the
knob.
A. DHW saftey valve (6 bar)
B. System saftey valve (3 bar)
W
Waatteerr ffiilltteerr
Check that no impurities prevent the correct passage of water.
maintenace
