AERMEC GLF10N Manual De Uso E Instalación página 34

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HOT/COLD MODE CHANGE OVER
WATER SIDE SEASON CHANGEOVER
If the thermostat is configured for use
without a valve (dip1 OFF) or with a
probe upstream of the valve (dip2 ON),
then the water temperature detected is
that available on the terminal, therefore
the season is forced to Hot or Cold accord-
ing to this temperature.
The thresholds of the season changeover
COLD SEASON CHANGEOVER THRESHOLD
12 °C / 22°C
22°C / 25°C
VENTILATION ENABLING
The normal band (hot enabled at 39° C,
cold enabled at 17° C) or the reduced
band (hot enabled at 35° C, cold enabled
at 22° C) is selected based on the (dip4).
SEASON CHANGEOVER BASED ON THE AIR
The season changeover of some systems
is based on air temperature, these are:
- 2-pipe systems with the Water Probe
downstream of the valve.
- All 2-pipe systems without water probe.
- All 4-pipe systems.
The season changeover occurs as follows:
- Cold mode: if the ambient tempera-
ANTI-FREEZE PROTECTION
The anti-freeze protection allows you to
check that the room temperature never
falls to freezing values (even when the
selector is in the OFF position). If the
temperature drops below 7° C, the ther-
mostat still operates in HEATING mode
with SETPOINT at 12° C and ventilation
in AUTO, if the temperature of the water
permits so. In case of Water Probe not pre-
sent or continuous ventilation, the fan is
EXTERNAL CONTACT LOGIC
The thermostat also includes an external
contact that allows to set it to OFF if it
is closed (except if the thermostat is in
anti-freeze mode or as a slave in the TTL
network). This contact could be useful to
manage inputs such as window contacts,
faulty circulation pump, etc.
34
AGLFI10NFJ 2006_5905226_03
are shown in the table below.
The ventilation is enabled only if the water
temperature is suitable for the cooling
mode or the heating mode. This allows on
one side to avoid unwanted cold ventila-
tion in the winter season, and on the other
side to check the turning on and off of all
terminals, according to the actual condi-
HOT SEASON CHANGEOVER THRESHOLD
35 °C / 39 °C
31 °C / 35°C
ture detected is below the setpoint of an
interval equal to the dead band (2° C or
5° C) it switches to the hot mode.
- Hot mode: if the ambient temperature
detected is above the setpoint of an
interval equal to the dead band (2° C or
5° C) it switches to the cold mode.
The dead band is decided through
always enabled. If the valve is present and
the water probe is upstream or the water
probe is absent, the pre-heating of the
heat exchanger is still executed.
The thermostat exits the Anti-freeze mode
when the room temperature exceeds 9°C.
CE input status
Closed
Open
tion of the water available (centralized
control of the On-Off and Hot-Cold com-
mands).
DIP SWITCH
MEANING
Normal band (dip 4 off )
Reduced band (dip 4 on)
dip7 or rather if it has a dead band of
5° C (dip7 OFF) while if the dead band
is 2° C (dip7 ON).
Machine status
OFF
ON
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