• TECHNICAL CHARACTERISTICS OF THE CONTROL UNIT
1) Power supply: 230V~
2) Thermostat control range from 9 to 32°C with differential 0.7°C
3) 2 x optoinsulated inputs for remote seasonal changeover (IN2); reducing set point reduction or turning
off the control unit (IN1)
4) n° 3 inputs probes: T1 - air probe, T2 - Change Over probe, T3 - Probe minimum water
5) Probe status control: if the air probe is disconnected or short-circuited, the control unit switches to continuous opera-
tion (valve outputs energised and fan on) and the red LED on the front of the control unit starts flashing;
• FUNCTION SETTINGS
DIP
DEFAULT
OFF
1
OFF
2
OFF
3
OFF
4
OFF
5
OFF
6
OFF
7
8
OFF
• JUMPER MC3
1
2
3
MC3
Summer/winter switching JUMPER MC3:
The control unit is set for winter operation; supplying line voltage (L = 230V~) to the terminal IN2 of the fan coil activates
the electronic selector to switch into summer mode.
1) can be selected using the control switch: Jumper MC3 in default position, pins 1-2 closed.
2) can be selected by remote signal: Jumper MC3 between pins 2-3 closed (the summer/winter switch is disabled).
ON
T
HERMAL POWER STATION WITH
C
ONTINUOUS VENTILATION
4
PIPE UNITS
T3 W
INTER AND
V
ARIATION OF NIGHT TIME SET POINT
(-3°C
, +3°C
WINTER
4
PIPE UNITS
ENABLED
WITH DEAD ZONE
E
-
LECTRIC RESISTANCE
COILS
E
LECTRIC RESISTANCE
T2 P
WITH
ROBE
DEFAULT
P
OSITION
F
T
AN
S
S
UMMER
)
SUMMER
,
M
ANAGEMENT
-
COILS
MC3
MC3
9
OFF
HERMAL POWER STATION WITH VALVES
IMULTANEOUS VENTILATION OF VALVES
2
PIPE UNITS
T3
W
ONLY
INTER
IN1 = R
ON/OFF
EMOTE
4
,
PIPE UNITS
DISABLED
WITH DEAD ZONE
IAQ E
F
LECTRONIC
E
LECTRIC RESISTANCE
WITH RESISTANCE PHASE
1-2 = Local Summer/Winter
switching
2-3 = Remote Summer /
Winter switching
with "IN2".
English
ILTER
-
COILS
II