AERMEC FCL Series - Page 52

52
In the case of the 4-pipe configuration, in the cooling mode, the control board rather than the
generic solenoid valve VS, will control the cooling solenoid valve VSF (shown in brackets in the
diagrams above) while the heating solenoid valve (VSC) is closed.
Heating mode (fan coil)
By means of the remote control it is possible to set the heating mode and a reference temperature.
The system will set a fan speed depending on the difference between the operating temperature
and the probe temperature. With the fan set in automatic mode the behaviour of the machine is
described in the diagram below:
T
sa
0,6 °C
1,5 °C
T
L
V
1
V
2
V
3
Y1 (Y2)
1,5 °C
0,6 °C
Se dip 6 di SW 1 è
off la ventilazione è
sem pre attiva
Key
T
SA
: ambient probe temperature
T
L
: operating temperature (set by the user)
V
1
, V
2
, V
3
: speed (maximum, medium, minimum)
V
x
: speed selected by the user
Y1: solenoid valve
Y2: heating water solenoid valve (4-pipe configuration)
RE: electric heater (supplementary or replacement)
If the fan speed is set from the remote control, the behaviour will be the following (Vx speed set by
the user):
0,6 °C
T
L
T
S
A
V
x
Se dip 6 di SW 1 è
off la ventilazione è
sem pre attiva
Y1
(
Y2
)
heating mode, speed set by the user
heating mode, with fan speed set by the user