N.B.:
When installing the RH% limit sensor according to the
diagrams, as indicated, possible formation of condensation on the
surface.
In areas where the max RH% limit sensor is installed,
adequate ventilation must always be present.
11)
SE
Outside sensor wiring. Connect the outside sensor using
2-core cable (2x0,75) to the connector provided on the unit.
12)
SR
Return sensor wiring. Factory fitted.
13)
TA1
Room thermostat wiring. Optional.
14)
Pump shut-down variant. Sometimes the temperature
regulating unit is installed in a system where there may be
one or more users with different usage requirements. In this case,
for users requiring ON/OFF operation, it may be necessary to
shut down the unit circulator.
The electrical diagram shown below illustrates this possibility;
the user auxiliary contact must be inserted in series with the
normal wiring.
15)
SM
Flow sensor wiring. Factory fitted.
16)
C
Summer - winter circuit changeover valve wiring.
F
This connection enables the 3-way valve to be activated
automatically for hydraulic deviation between the boiler circuit
and the chiller circuit. This takes place after the outside
temperature has risen above the value set at point 10 for at least
half an hour.
Ten minutes later, the regulating unit pump is activated.
17)
KA
Chiller activation wiring. This activation takes place in the
same way as in point 16.
18)
Remote data transmission connector.
Table of sensor resistance values*
*
excluding max RH% limit sensor
Safety
If the flow or outside sensor shows an ohm resistance value outside
its working range (damaged or disconnected sensor), the following
operating state is automatically activated:
Pump OFF, Mixing valve OFF, LED 7 continuously lit.
Safety thermostat code 622001
Additional for use with underfloor heating systems.
- Range of adjustment:
5 ÷ 55°C
- Factory setting:
50°C
- Protection class:
IP 40
- Contacts load:
(C-1) 10(2,5)A / 250V
- Contacts load:
(C-2) 1(1)A / 250V
PS
MA
MC
Brown
RH side
ter
minal strip
Pump shut-down wiring
Unit 152 pump
User auxiliary contact
6
7
8
Pump shut-down variant
°C
Ohm
-15 11.382
-12
9.912
-10
8.933
-6
7.439
-3
6.492
-2
6.206
0
5.632
°C
Ohm
0
5.632
2
5.187
4
4.742
6
4.347
8
4.000
10
3.553
15
2.971
°C
Ohm
20
2.431
25
2.000
30
1.655
35
1.376
40
1.150
45
966
50
815
°C
Ohm
55
690
60
587
65
501
70
430
75
370
80
319
85
276
°C
Ohm
90
240
95
209
100
183
SE
SE
LH side
ter
m
inal strip
Outside sensor
Connecting
wiring
Connector
C
1
2
+
°
C
KA
RH side
ter
minal strip
KA
C
F
M
N
Boiler circuit open
Chiller circuit open
12
3
6
9
18
17
16
15
14
1
3
12
1
1
10
9
8
7
6
5
4
3
2
1
24
23
22
21
20
19
WATCH
CALEFFI
30
40
50
60
70
80
90
-25%
+25%
-50%
0
22
24
26
28
30
32
34
The maximum heat energy that the panel can produce in relation
with the climate values recorded, can be reached by controlling the
below outlined parameters.
- Minimum flow temperature on the characteristic curve, which can
be selected through the microswitch (point 4 on the back panel).
- Sensor (code 150050) controlled maximum RH% limit.
- Room temperature controlled through room thermostat (code 151000).
- Room temperature and relative humidity controlled through a
dedicated fan-coil).
