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REGULATION DIAGRAM
Minimum
temperature
alarm signal
and acknow-
ledgement
for connec-
tion of 2nd
air-conditio-
ner.
ON
OFF
ON-OFF re-
gulation for
connection
of
element of
single
conditioner.
3°
5°
Microprocessor card programming for the control of the single air-conditioner in the system:
1 Function of rotation of sequence of connection of the air-conditioners on the basis of the switching off of the last compressor, with prio-
rity of switching on for the other compressor, unless already operating, with daily reset of the frequency.
2 With Te<Ta (∆T>3°C): Free-Cooling mode
3 With Ta≥12°C e Ti>Ta (∆T≥2°C): alarm signal due to Free-Cooling air lock or electric heater anomaly.
24
ENGLISH
Regulation of
ON-OFF re-
single air-con-
gulation for
ditioner con-
connection
nection by mi-
of 2nd air-
nimum
conditioner
temperature.
for opera-
tion in Free-
Cooling
heating
air-
7°
10°
14° 18°
9°
ON-OFF re-
High tempe-
gulation for
rature signal
connection
of 2nd air-
conditioner
for opera-
tion in Coo-
ling.
ON-OFF re-
gulation for
connection
of compres-
sor of single
air-conditio-
ner.
22° 26°
30°
35°
23°
27°
HED-HCAT SE FREE COOLING
I
Maximum
operating
temperature
signal.
40°
45°
50°
Room temp.
A
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