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8.4 Characteristic curve temperature sensor outdoor unit
NTC - 10
-20
Temperature in °C
kΩ
105
25
Temperature in °C
kΩ
10.0
NTC - 5
-20
Temperature in °C
kΩ
52.7
25
Temperature in °C
kΩ
5.00
NTC - 200
1
Temperature in °C
kΩ
525.00
70
Temperature in °C
kΩ
43.73
8.5 Characteristic curve temperature sensor indoor unit
8.5.1 Sensor characteristic curves
-20
-15
Temperature in °C
NTC-2 in kΩ
14.6
11.4
NTC-10 in kΩ
67.7
53.4
15
20
25
30
35
2.9
2.4
2.0
1.7
1.4
14.9
12.1
10.0
8.4
7.0
The temperature sensors to be connected to the heat pump man-
ager must correspond to the sensor characteristic curve illus-
trated in Fig.8.1 on pag. 16. The only exception is the outdoor
temperature sensor included in the scope of supply of the heat
pump (see Fig.8.2 on pag. 16)
([WHUQDO WHPSHUDWXUH LQ >ƒ&@
Fig. 8.1: Sensor characteristic curve NTC-10
EN-16
-15
-10
-5
-2
80.2
58.2
44.0
37.4
26
28
30
32
9.57
8.76
8.04
7.38
-15
-10
-5
-2
38.9
29.1
22.0
18.7
26
28
30
32
4.78
4.38
4.02
3.69
5
10
15
20
448.00
326.00
294.33
242.20
75
80
85
90
37.35
32.20
28.16
24.60
-10
-5
0
5
8.9
7.1
5.6
4.5
42.3
33.9
27.3
22.1
40
45
50
55
1.1
1.0
0.8
0.7
5.9
5.0
4.2
3.6
452162.66.09 · FD 9703
Air sensor (outdoor unit)
0
2
5
33.6
30.3
25.9
34
36
38
6.78
6.24
5.74
Pipe-mounted sensors (outdoor unit)
0
2
5
16.8
15.1
13.0
34
36
38
3.39
3.12
2.87
Hot gas sensor (output compressor)
25
30
35
200.00
167.57
138.03
95
100
105
21.37
18.50
16.60
10
3.7
18.0
60
0.6
3.1
Fig. 8.2: Sensor characteristic curve NTC-2 according to
DIN 44574
Outdoor temperature sensor
8.5.2 Mounting of the external outside
temperature sensor (optional)
With outside temperature based control, the connection of an
outside temperature sensor (FG 3115) is recommended for
mounting on the north side of the building, as incorrect values
would otherwise be recorded for the heating curve calculation
(e.g. during intensive sun radiation).
The external sensor (FG3115) is connected to the heat pump
manager and activated by after-sales service during commis-
sioning.
With room temperature based control via the smart RTC, no ad-
ditional outside temperature sensor is required.
Sensor lead: Max. length 40 m; min. core cross-section
0.75 mm²; external diameter of the cable 4-8 mm.
LAK 3IMR - LAK 14ITR
10
15
18
20
20.2
15.8
13.8
12.5
40
50
60
70
5.30
3.59
2.49
1.76
10
15
18
20
10.1
7.92
6.88
6.27
40
50
60
70
2.65
1.79
1.24
0.88
40
45
50
55
133.80
98.00
82.00
64.50
110
115
120
130
14.50
13.30
12.80
10.80
([WHUQDO WHPSHUDWXUH LQ >ƒ&@
22
24
11.4
10.5
80
90
1.27
0.93
22
24
5.72
5.23
80
90
0.64
0.47
60
65
59.00
50.71
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