16
D/E/DhDsZ'tdZdDWZdhZ
Temperature of the air in the room with dry bulb °C
21 23 25 27 29 31
15
3 3 3 3 3 3
Temperature of the wet bulb
17
3 3 3 3 3 3
of the air in the room °C
19
3 3 3 3 3 3
21
6 5 4 3 3 3
23
- 8 7 6 5 5
The assembly site must be chosen in such a way that the maxi-
mum and minimum ambient temperature limits are respected
0÷45°C (<85% U.R.).
Minimum average water temperature
To avoid condensate on the external structure of the device
while the fan is functioning, the average temperature of the
water must not be lower than the limits shown in the table
below, that depend on the thermo-hygrometric conditions of
the air in the room.
These limits refer to unit operating with fan at minimum speed.
In the event of prolonged fan inactivity and with cold water
passing through the coil, condensate may form on the external
case of the unit.
As a result, we recommend including the
ϯͲǁĂLJǀĂůǀĞĂĐĐĞƐƐŽƌLJ͘
KWZd/E'>/D/d^
Maximum water input temperature
80
°C
Maximum operating pressure
8
bar
hZ/E'KWZd/KE
Always leave the filter fitted on the fan coil during operation
(otherwise dust in the air could soil the coil surface area).
IT IS NORMAL
In cooling mode, water vapour may be present in the air deliv-
ery of the fan coil.
In the heating function it might be possible to hear a slight hiss
around the fan coil. Sometimes the fan coil might give off
unpleasant smells due to the accumulation of substances in the
air of the environment (especially if the room is not ventilated
regularly, clean the filter more often).
tŚŝůĞƚŚĞƵŶŝƚŝƐĨƵŶĐƚŝŽŶŝŶŐ͕ƚŚĞƌĞĐŽƵůĚďĞŶŽŝƐĞƐĂŶĚĐƌĞĂŬƐ
inside the device due to the various thermal expansions of the
elements (plastic and metal), but this does not indicate any
malfunction and does not damage the unit unless the maximum
input water temperature is exceeded.
tZE/E'
Make sure the equipment cannot be used by children or
disabled people without suitable supervision; remember also
that the equipment must not be used by children as a toy.
OPERATING ENVIRONMENT
dŚĞ ƵŶŝƚƐ ĂƌĞ ĚĞƐŝŐŶĞĚ ĨŽƌ ŝŶƐƚĂůůĂƟŽŶ ŝŶ ĐůŽƐĞĚ ĞŶǀŝƌŽŶŵĞŶƚƐ ŝŶ ĐŽŶĚŝƟŽŶƐ
of ‘urban’, non-marine atmosphere with non-corrosive and non-dusty
ĐŚĂƌĂĐƚĞƌŝƐƟĐƐ͘
hŶĚĞƌŶŽĐŝƌĐƵŵƐƚĂŶĐĞƐƚŚĞĨŽůůŽǁŝŶŐĐŽŶĐĞŶƚƌĂƟŽŶƐŽĨƉŽůůƵƚĂŶƚƐŝŶƚŚĞĂŝƌ͕ŝŶ
which the unit must operate, shall be exceeded:
SO
2
<0,02 ppm
,
2
S
<0,02 ppm
NO,NO
2
<1 ppm
E,
3
<6 ppm
N
2
O
<0,25 ppm
dŚĞ ƵŶŝƚ ƐŚŽƵůĚ ŶŽƚ ďĞ ŝŶƐƚĂůůĞĚ ŝŶ ůŽĐĂƟŽŶƐ ĐŚĂƌĂĐƚĞƌŝnjĞĚ ďLJ ƚŚĞ ƉƌĞƐĞŶĐĞ ŽĨ
ŇĂŵŵĂďůĞŐĂƐĞƐŽƌĂĐŝĚŝĐŽƌĂůŬĂůŝŶĞƐƵďƐƚĂŶĐĞƐ͘
KƚŚĞƌǁŝƐĞƚŚĞĐŽŝůƐĂŶĚƚŚĞŝŶƚĞƌŶĂůĐŽŵƉŽŶĞŶƚƐŽĨƚŚĞĞƋƵŝƉŵĞŶƚĐŽƵůĚƐƵīĞƌ
serious and irreparable damage from corrosion.
WARNINGS FOR THE QUALITY OF THE WATER
CIRCULATING IN THE COILS
/ƚ ŝƐ ƌĞĐŽŵŵĞŶĚĞĚ ƚŽ ƉĞƌĨŽƌŵ ĂŶ ĂŶĂůLJƐŝƐ ŽĨ ƚŚĞ ǁĂƚĞƌ ĐŝƌĐƵůĂƟŶŐ ŝŶ ƚŚĞ ĐŽŝů
ĨŽĐƵƐŝŶŐ ŽŶ ƚŚĞ ƌĞƐĞĂƌĐŚ ŽĨ ƚŚĞ ƉŽƐƐŝďůĞ ƉƌĞƐĞŶĐĞ ŽĨ ďĂĐƚĞƌŝĂ ;ĚĞƚĞĐƟŽŶ ŽĨ
ŝƌŽŶďĂĐƚĞƌŝĂĂŶĚŵŝĐƌŽͲŽƌŐĂŶŝƐŵƐƚŚĂƚĐĂŶƉƌŽĚƵĐĞ,Ϯ^ŽƌĐŚĞŵŝĐĂůůLJƌĞĚƵĐĞ
ƐƵůƉŚĂƚĞƐͿĂŶĚŽŶƚŚĞĐŚĞŵŝĐĂůĐŽŵƉŽƐŝƟŽŶŽĨƚŚĞǁĂƚĞƌ͕ƚŽƉƌĞǀĞŶƚĐŽƌƌŽƐŝŽŶ
and fouling inside the tubes.
The water circuit must be supplied and replenished with treated water that does
not exceed the threshold levels indicated below.
Total hardness in mmol/l
l < mmoll/l < 1,5
Chlorides [CL
-
]
< 10 mg/litre
Sulphates [SO
4
2-
]
< 30 mg/litre
Nitrates [NO
3
-
]
= 0 mg/litre
Dissolved iron
< 0,5 mg/litre
Dissolved oxygen
4 < [O
2
] < 9 mg/litre
Carbon dioxide [CO
2
]
< 30 mg/litre
ZĞƐŝƐƟǀŝƚLJ
ϮϬKŚŵͼŵфZĞƐŝƐƟǀŝƚLJф
50 Ohm·m
Ɖ,
ϲ͕ϵфƉ,фϴ
