C ω °c ω – Caleffi 1522 User Manual
Page 3
3
CAUTION
Install Pt1000 probe, with red silicone sheath cable (Tmax 180°C), on the solar collector.
Dimensions
Probe connection
The cable connecting probes to the regulator must be
installed in a dedicated raceway. If the connection
cable shares the raceway with other power cables, an
earthed shielded cable must be used.
Any alteration to the wiring of the regulator could
result in electrical disturbance.
After performing work on the wiring, the regulator
must be reset by cutting off the electric supply for a
few seconds. Cable length can be increased to 100 m
using a 1 mm
2
cross section cable.
*The use of the probes is specified in the “Available programs” heading on page 5.
NTC probes* resistance table: for solid fuel generator flow, domestic water storage, domestic heat exchanger, inertial water
storage in parallel on the heating system, solar water storage.
Pt1000 probe* resistance table: for solar collector.
100
23
1/2”
ø
6,4
A
C
B
6
50
3
L (m)
B
A
A
B
6
28
2
L (m)
B
A
A
B
1,5
30
55
9
11
L (m)
B
A
C
D
D
43
17
1/4”
ø
6,4
C
B
A
°C
Ω
°C
Ω
-10
961
65
1252
-5
980
70
1271
0
1000
75
1290
5
1019
80
1309
10
1039
85
1328
15
1058
90
1347
20
1078
95
1366
25
1097
100
1385
30
1117
105
1404
35
1136
110
1423
40
1155
115
1442
45
1175
120
1461
50
1194
140
1536
55
1213
160
1611
60
1232
170
°C
-20
-18
-16
-14
-12
-10
-8
-6
-4
Ω
14616
13211
11958
10839
9838
8941
8132
7405
6752
°C
-2
±0
+2
+4
+6
+8
+10
+12
+14
Ω
6164
5634
5155
4721
4329
3974
3652
3360
3094
°C
+16
+18
+20
+22
+24
+26
+28
+30
+32
Ω
2852
2632
2431
2247
2079
1925
1785
1657
1539
°C
+34
+36
+38
+40
+42
+44
+46
+48
+50
Ω
1430
1331
1239
1154
1076
1004
938
876
819
°C
+52
+54
+56
+58
+60
+62
+64
+66
+68
Ω
767
718
673
631
592
556
522
491
462
°C
+70
+72
+74
+76
+78
+80
+82
+84
+86
Ω
434
409
386
364
343
324
306
290
274
°C
+88
+90
+92
+94
+96
+98
+100
Ω
260
246
233
221
210
199
189
Probe
Type
Supply
Standard application
Optional application
S1*
NTC
series
probe + contact probe holder:
code 150009
immersion pocket code 150029
S2*
NTC
optional
-
probe code 150006 + pocket code 257004
S3*
NTC
optional
-
probe code 150006 + pocket code 150029
S4*
NTC
series
probe code 150006 +
pocket code 257004
-
S5*
NTC
series
probe + contact probe holder:
code 150009
-
Sol2*
NTC
optional
-
probe code 150006 + pocket code 257004
Sol1*
Pt1000
optional
-
immersion type: probe code 257006 +
pocket code 257004
NTC probe and contact probe
holder code 150009
Immersion pocket
code 150029
NTC probe
code 150006
Pt1000 probe
code 257006
Immersion pocket
code 257004
Relay box
code F29525
See instruction sheet,
code 28134