9
IVEDPY 2005 - 4879010_04
Minimum average water temperature
If the fan coil is working in continuous
cooling mode in an environment
where the relative humidity is high,
condensate might form on the air
delivery and on the outside of the
device. This condensate might be
deposited on the floor and on any
objects underneath.
To avoid condensate on the external
structure of the apparatus with the fan
in operation, the average temperature
of the water must not be lower than
the limits shown in the table below,
that depend on the thermo-hygrometric
condition of the air in the environment.
The limits mentioned above refer to
operation while the fan is set
to its minimum speed level.
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 3-way
valve accessory.
OPERATIONAL LIMITS
Water temperature
In order to prevent air stratification in
the room, and therefore to achieve
improved mixing, it is advisable not
to supply the fan coil with water at a
temperature over 65°C.
The use of water at high temperatures could
cause squeaking due to the different
thermal expansions of the elements
(plastics and metals), this does not
however cause damage to the unit if the
maximum operating temperature is not
exceeded.
VED
430
440
530
540
441 541
Maximum water inlet temperature
°C
80
Maximum recommended water inlet temperature
°C
65
Maximum operating pressure
bar
8
Minimum water flow rate (Main coil)
l/h
300
300
300
300
300
300
Maximum water flow rate (Main coil)
l/h
3000
3000
3000
3000
3000
3000
Minimum water flow rate (Heating Only Coil)
l/h
-
-
-
-
100
100
Maximum water flow rate (Heating Only Coil)
l/h
-
-
-
-
1500
1500
External temperature limits (Ta)
°C
0° < Ta < 40°
Relative humidity limits in the room (R.H.)
R.H. < 85%
Power supply
230V ( ±10% ) ~ 50 Hz
Protection level
IP
20
MINIMUM AVERAGE WATER TEMPERATURE [°C]
Ambient air temperature with dry bulb
21
23
25
27
29
31
Ambient air temperature
with wet bulb
15
3
3
3
3
3
3
17
3
3
3
3
3
3
19
3
3
3
3
3
3
21
6
5
4
3
3
3
23
-
8
7
6
5
5
The leakage current to earth of several
devices placed under the same circuit
breaker is summed, so attention should
be paid to the calibration of the circuit
breaker and possibly consider the division
of the installation into several circuits
each of which protected by its own circuit
breaker.
VED
630
640
730
740
641 741
Maximum water inlet temperature
°C
80
Maximum recommended water inlet temperature
°C
65
Maximum operating pressure
bar
8
Minimum water flow rate (Main coil)
l/h
300
300
300
300
300
300
Maximum water flow rate (Main coil)
l/h
4500
4500
4500
4500
4500
4500
Minimum water flow rate (Heating Only Coil)
l/h
-
-
-
-
300
300
Maximum water flow rate (Heating Only Coil)
l/h
-
-
-
-
3000
3000
External temperature limits (Ta)
°C
0° < Ta < 40°
Relative humidity limits in the room (R.H.)
R.H. < 85%
Power supply
230V ( ±10% ) ~ 50 Hz
Protection level
IP
20
VED
430/530
440/540
630/730
640/740
liters
(l)
2,9
3,9
4,7
6,3
BATTERY WATER CONTENT
Summary of Contents for VED
Page 56: ...56 IVEDPY 1902 4460510_00 ...
