Installation and operating instruction
Hydraulic unit WWP LS 8 ... 16-B
11 Technical documentation
83306902 2/2017-05 La
81-88
11 Technical documentation
11.1 Sensor variables
De-couple sensor (B2)
DHW sensor (B3)
Flow sensor (B7)
(1
Internal refrigerant sensor
(B8)
Return sensor EWT (B9)
External sensor (B1)
(2
Flow sensor LWT (B4)
(3
NTC 5 kΩ
NTC 2 kΩ
PT 1000 kΩ
°C
Ω
°C
Ω
°C
Ω
-20
48 180
-20
15 138
-10
961
-15
36 250
-15
11 709
0
1 000
-10
27 523
-10
9 138
10
1 039
-5
21 078
-5
7 193
20
1 078
0
16 277
0
5 707
30
1 117
5
12 669
5
4 563
40
1 155
10
9 936
10
3 675
50
1 194
15
7 849
15
2 981
60
1 232
20
6 244
20
2 434
70
1 271
25
5 000
25
2 000
80
1 309
30
4 029
30
1 653
90
1 347
35
3 267
35
1 375
40
2 665
40
1 149
45
2 185
50
1 802
55
1 494
60
1 245
65
1 042
70
876
75
740
80
628
85
535
90
457
(1
Flow temperature downstream of electric heating.
(2
Accessory
(3
Flow temperature between electric heating and internal heat exchanger (sensor integrated in flow sensor).
Internal heat exchanger pressure sensor (B12)
bar
mA
0
4
7.5
6
15.0
8
22.5
10
30.0
12
37.5
14
45.0
16
60.0
20