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Idiomas disponibles
Idiomas disponibles
OPERATING ENVIRONMENT
The units are designed for installation in closed environments
in conditions of 'urban', non-marine atmosphere with
non-corrosive and non-dusty characteristics. Under
no circumstances should the following concentrations of
pollutants in the air where the unit operates be exceeded:
SO
2
H
S
2
NO,NO
2
NH
3
N
O
2
The unit should not be installed in places characterised by the
presence of flammable gases or acidic or alkaline substances.
Otherwise the coils and the internal components of the
equipment could suffer serious and irreparable damage from
corrosion.
WARNINGS FOR THE QUALITY OF THE
OPERATING LIMITS
Maximum water inlet temperature ................................... 70°C
The assembly site must be chosen in such a way that the maximum
and minimum ambient temperature limits (Ta) are respected 0°C < Ta
<40°C; R.H. < 85%.
Flow rate limits:
MOD.
Minimum flow rate
Maximum flow rate
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.
MINIMUM AVERAGE WATER TEMPERATURE
Ambient air temperature
with wet bulb °C
You are advised to perform an analysis of the water circulating
The water circuit must be supplied and replenished with treated
< 0.02 ppm
< 0.02 ppm
< 1 ppm
< 6 ppm
< 0.25 ppm
Maximum operating pressure .........................13 bar (1.3 MPa)
Power with a current of 220-240V ~ 50/60 Hz and an earth connection.
In any case, the line voltage must remain within the tolerance range of
±10% in relation to the nominal value.
FCWI
22
[l/h]
100
[l/h]
750
Ambient air temperature with dry bulb °C
21
15
3
17
3
19
3
21
6
23
-
WATER CIRCULATING IN THE COILS
in the coil focusing on the research of the possible presence of
bacteria (detection of iron bacteria and micro-organisms that
can produce H2S or chemically reduce sulphates) and on the
chemical composition of the water, to prevent corrosion and
fouling inside the tubes.
water that does not exceed the threshold levels indicated
below.
Total hardness in mmol/l
-
Chlorides [CL
]
2-
Sulphates [SO
]
4
-
Nitrates [NO
]
3
Dissolved iron
Dissolved oxygen
Carbon
dioxide [CO
]
2
Resistivity
pH
32
100
750
23
25
3
3
3
3
3
3
5
4
8
7
1 < mmol/l < 1.5
< 10 mg/litre
< 30 mg/litre
= 0 mg/litre
< 0.5 mg/litre
4 < [O
] < 9 mg/litre
2
< 30 mg/litre
20 Ohm∙m < Resistivity < 50 Ohm∙m
6.9 < pH < 8
42
52
150
250
1100
2000
27
29
3
3
3
3
3
3
3
3
6
5
31
3
3
3
3
5
29
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