MAXinBOX FC 0-10V FAN
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20
20
Minimum Fan Speed
: from 0 to 100% (20% by default). This value must be
higher or equal than the Minimum Control.
Note
:
both offsets must be lower than the Maximum Fan Speed parameter
(see 2.5.1.2).
Depending on the mode, the following delays must be configured:
Delay for Fan Activation when Valve Opens
: time to wait since the valve
opens until the fan can be turned on. This delay must be configured for both
Cooling and Heating. The allowed values are: 0 to 600 ds, 0 to 3600 s, 0 to
1440 min or 0 to 24 hours.
Delay for Fan Deactivation when Valve Closes
: time to wait since the valve
closes until the fan should be turned off. This delay must be configured for
both Cooling and Heating. The allowed values are: 0 to 600 ds, 0 to 3600 s, 0
to 1440 min or 0 to 24 hours.
Minimum Delay
for the mode change: minimum time the device should wait
between the order to close the valve (under the old mode) and the order to
open the valve (in the new mode). The allowed values are: 0 to 600 ds, 0 to
3600 s, 0 to 1440 min or 0 to 24 hours
This parameter is only visible when the two modes are available (i.e., with a
two-pipe fan coil with both modes, or with a four-pipe fan coil).
2.5.1.2
ADVANCED SETTINGS
Among other options, in the advanced settings can be set if the
fan coil is always on
or not.
Moreover, it is possible to define a
maximum fan speed level
, which is set in terms of
percentage. If set, any fan regulation order greater than this value will lead the output
to the maximum, as shown in Figure 11.
One more advanced feature is the option to
keep the fan in motion after the valve is
closed
(i.e., when the setpoint is under the minimum value that activates the fan, or
Offset 1). This option is applied only in the cooling mode. When enabled, the desired
constant fan speed must be set by parameter (this fan speed can be changed at
runtime when required). Figure
12 illustrates this behaviour.
