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6
E
n
g
l
is
h
1
ʛ
,
2
- power (depending on the model:
230V ac or 24V ac/dc);
3
ʛ
- this output is short to the input no.
1 when there is request to perform he-
ating/cooling process and the thermo-
stat is turned on (on);
4, 5
ʛ
- these outputs are short to the input
no. 1 when there is no request to per-
form heating/cooling process or when
the thermostat is turned off (oFF);
6
ʛ
- output of gear 3. It is short to the in-
put no. 1 when following requirements
are simultaneously met: the thermostat
is turned on (on), there is request to
heat/cool and ‘Fan’ switch is in the po-
sition ‘3’;
7
ʛ
- output of gear 2. It is short to the in-
put no. 1 when following requirements
are simultaneously met: the thermostat
is turned on (on), there is request to
s
TRucTuRE
of
o
uTpuTs
heat/cool and ‘Fan’ switch is in the po-
sition ‘2’;
8
ʛ
- output of gear 1. It is short to the in-
put no. 1 when following requirements
are simultaneously met: the thermostat
is turned on (on), there is request to
heat/cool and ‘Fan’ switch is in the po-
sition ‘1’;
changing between heating and co-
I
oling modes only inverts the logical
process. outputs for connecting the
output device are the same (3 - pro-
cess is being performed, 4 - process is
not being performed) for heating and
cooling. Independent outputs for he-
ating and cooling are implemented in
IB-Therm 203S
thermostat for four-pi-
pes fan coils.
Simplified diagram of outputs:
2
3
1
4
5
6
7
8
T
FAN
1
2
3
OFF
ON
IB-Therm 203
