FC66005704-05
23
Fan coil with valve
Air temperature dry bulb (°C)
21
23
25
27
29
31
33
Relative
humidity %
40
5
5
5
5
5
5
5
50
5
5
5
5
5
6
8
60
5
5
5
5
7
9
11
70
5
5
6
8
9
11
13
80
5
6
8
10
12
14
16
90
6
8
10
12
14
16
18
Fan coil without valve
Air temperature dry bulb (°C)
21
23
25
27
29
31
33
Relative
humidity %
40
6
6
6
6
6
6
6
50
6
6
6
6
6
8
10
60
6
6
6
7
9
11
13
70
6
6
8
10
11
13
15
80
6
8
10
12
12
16
18
90
8
10
12
14
14
18
20
In the event the indoor unit is stopped for a prolonged peri-
od, with the fan stopped and circulation of cold water in the
heat exchanger, condensation may also form on the unit’s
exterior. In this case it is advisable to install the 3-way (or
2-way) valve accessory in order to stop the flow of water in
the coil when the fan is stopped.
During wintertime periods of quiescence, drain water from the
system, to prevent ice from forming. If anti-freeze solutions are
used, check for their freezing point using the table below.
% Glycol by weight
Freezing
temperature (°C)
Capacity
adjustment
Pressure drop
adjustment
0
0
1,00
1,00
10
-4
0,97
1,05
20
-10
0,92
1,10
30
-16
0,87
1,15
40
-24
0,82
1,20
WARNING:
During the connections, hold unit hydraulic connections with a
hexagonal wrench or make sure that don't rotate, to avoid dam-
age the tubes inside the unit.
Electrical connections
Make the electrical connections with the power supply dis-
connected, in accordance with current safety regulations,
and following the wiring diagrams in figure 11.7 p. 67 and
pertinent legend.
Check that the mains electricity supply is compatible with the
voltage shown on the unit rating plate.
The electrical connections indicated must be made by the
installer.
For each fan coil a switch (IL) should be mounted on the power
supply, with opening contacts at a distance of at least 3 mm and
a suitable protection fuse (F).
For control electrical connections follow the wiring diagrams on
figures : 11.8 p. 68, 11.9 p. 69 e 11.10 p. 70.
NOTE:
My Comfort Large control is available in wall-
mounted version only.
Galletti control dedicated (TED - EVO)
Galletti controls implement a logic that makes it possible to set
a fixed speed (shown in the figure with analog signal 3, 6, 8 V)
or automatic speed modulation, that takes full advantage of the
BLDC motor.
The automatic logic varies the analog signal to the motor be-
tween 2 and 10 V, based on the distance from the set-point, in
order to accelerate the implementation phases and then settle
at a very low holding speed.
SET
2V
SET
SET + DEADZONE
AUTO
AUTO
SET - DEADZONE
SET + DE 3°C
SET - DEADZONE - 3°C
2V
6V
3V
°C
°C
8V
6V
3V
8V
Summary of Contents for ART-U Series
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