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Verfügbare Sprachen
winter mode,
- 22 ° C to 25 ° C or Normal Cold Cold
Reduced, (can be configured via a DIP
switch).
Water temperature controls
The thermostat enables the ventilation
only if the water temperature is suitable
to the way Warm or Cold.
The thresholds enable ventilation are:
- 39 ° C in normal winter mode or 35 ° C in
winter mode,
- 17 ° C or 22 ° C Normal Cold Cold
Reduced,
(Can be configured via a DIP switch).
The control panel indicates the situation
in which the water temperature is not
appropriate to the operation mode set,
via the alternate flashing on the LED C
of fuchsia color with red or blue colors
related to the active mode.
Correcting probe
You can select a correction to apply to
the sensor.
Frost Protection (frost protection)
Frost protection plan to check that the
temperature never drops in values of
SYSTEM EXAMPLES
Key:
SW
Water temperature sensor
VCH
Solenoid valve (Heating / Cooling)
SA
Room temperature probe
AIR
SA
SW
OPERATING ENVIRONMENT
The units are designed for installation in closed environments in conditions of
'urban' , non-marine atmosphere with non-corrosive and non-dusty characteristics.
Under no circumstances the following concentrations of pollutants in the air, in
which the unit must operate, shall be exceeded:
SO
<0,02 ppm
2
H
S
<0,02 ppm
2
NO,NO
<1 ppm
2
NH
<6 ppm
3
N
O
<0,25 ppm
2
The unit should not be installed in locations characterized by the presence of
flammable gases or acidic or alkaline substances.
Otherwise the coils and the internal components of the equipment could suffer
serious and irreparable damage from corrosi
frost, even when the fan is switched off
and the selector (A) is OFF.
In the case where the temperature drops
below 7 ° C, the thermostat starts the
fan coil in the hot operation with set
at 12 ° C and ventilation in AUTO, if the
temperature of the water so allows, that
the fan coil unit is powered on and that,
for models with manual flap, the flap
outlet is in the open position.
It leaves the way frost when the tempera-
ture rises above 9 ° C.
Emergency mode
In case of failure of the electronic thermo-
stat probes it behaves in the following
way:
- Ambient probe SA fault, the thermostat
enters "Emergency", indicated by the
flashing of the LED (D) yellow.
With selector (A) in the OFF position the
fan is switched off.
With selector (A) in AUTO, V1, V2 and V3
fan run cycles on - off; in this situation
the power delivered by the terminal is
controlled manually via the tempera-
ture selector (B), turning to the right the
AIR
SA
SW
WARNINGS FOR THE QUALITY OF THE WATER CIRCULATING
IN THE COILS
It is recommended to perform an analysis of the water circulating in the coil
focusing on the research of the possible presence of bacteria (detection of
iron bacteria and micro-organisms that can produce H2S or chemically reduce
sulphates) and on the chemical composition of the water, to prevent corrosion
and fouling inside the tubes.
The water circuit must be supplied and replenished with treated water that does
not exceed the threshold levels indicated below.
Total hardness in mmol/l
Chlorides [CL
Sulphates [SO
Nitrates [NO
Dissolved iron
Dissolved oxygen
Carbon dioxide [CO
Resistivity
pH
cycle duration of Lit increases; turning
to the left decreases the time.
- Failure SW water probe, the thermostat
enters "Change season from September. "
The ventilation is always enabled.
The season change takes place according
to the following rules:
a) if the thermostat is in cooling mode
and the demand of the thermostat is 5
° C below the set point, then automati-
cally the thermostat requires heating
mode.
b) if the thermostat is in heating mode
and the demand of the thermostat is 5 °
C above the set point, then the thermo-
stat automatically requires the cooling
mode.
VCH
SA
l < mmoll/l < 1,5
]
< 10 mg/litre
-
]
< 30 mg/litre
2-
4
]
= 0 mg/litre
-
3
< 0,5 mg/litre
4 < [O
] < 9 mg/litre
2
]
< 30 mg/litre
2
20 Ohm∙m < Resistivity< 50 Ohm∙m
6,9 < pH < 8
IHLPCLJ 2204 - 6887206_05
AIR
VCH
SW
25
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