Galletti LED 503 Bedienungsanleitung Seite 18

LED 503
VENTILATION
The controller can manage the terminals at 3 or 4 fan speeds.
OPERATING SPEED SELECTION
Using the Fan key it is possible to select the following speeds:
G B
AUTO
> Automatic speed: depending on set temperature and room air
temperature.
With 3-speed configurations:
Where:
1 = low speed
2 = medium speed
3 = maximum speed
With 4-speed configurations:
Where:
sm = extra-low speed
1 = low speed
2 = medium speed
3 = maximum speed
NB: for configurations with 4 speeds and valve or 3 speeds + CN,
ventilation in heating mode is shifted by 0.5°C to permit a natural convection
phase.
FC66002953 - rev. 02
È severamente vietata la riproduzione anche parziale di questo manuale / All copying, even partial, of this manual is strictly forbidden
COOLING
HEATING
COOLING
HEATING
WATER CONTROL
Ventilation operation depends on the system water temperature control. Based
on the operation mode, different heating or cooling thresholds will be enabled.
Upon a call of the thermostat, the absence of the enabling signal will be
indicated on the display by the flashing of the symbol (4) or (5) representing
the active mode.
Air temp
This enabling signal will be ignored if:
> Water probe not included (P04 = 0) or in alarm status because
disconnected.
> For Cooling with 4-pipe configurations.
FORCED OVERRIDES
The normal fan operating logic will be ignored in particular override situations
Air temp
that may be necessary to ensure correct control of the temperature or the
terminal's operation. This may occur:
in the Cooling mode:
> with on-board controller (P01 = 0) and configurations with valve: the
minimum available speed is maintained even when the temperature is
reached.
> On-board controller and configurations without valve: every 10 minutes
in which the fan remains idle a 2 minute fan rotation is carried out at
medium speed to enable the air probe to read the room temperature
more accurately.
In the heating mode
> While the electrical heater is on: the fan is forced to run at medium speed.
Air temp
> Once the electrical heater has gone off: a 2 minute post-ventilation
cycle will be run at medium speed. (NB: this cycle will be completed
even if the thermostat is switched off or in the event of a changeover to
the cooling mode).
Air temp
18
COOLING
Water temp
HEATING
Water temp