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SIH 90TU
7.4.1 Sensor characteristic curves
Temperature in °C
-20
-15
NTC-2 in k
14.6
11.4
NTC-10 in k
67.7
53.4
15
20
25
30
2.9
2.4
2.0
1.7
14.9
12.1
10.0
8.4
The temperature sensors to be connected to the heat pump
manager must correspond to the sensor characteristic curve il-
lustrated in Fig. 7.2. The only exception is the outside tempera-
ture sensor included in the scope of supply of the heat pump
(see Fig. 7.3)
70
60
50
40
30
20
10
0
-20
-15
-10
-5
0
5
10
15
External temperature in [°C]
Fig. 7.2: Sensor characteristic curve NTC-10
20
18
16
14
12
10
8
6
4
2
0
-20
-15
-10
-5
0
5
10
15
External temperature in [°C]
Fig. 7.3:Sensor characteristic curve NTC-2 according to DIN 44574 Out-
side temperature sensor
7.4.2 Mounting the outside temperature
sensor
The temperature sensor must be mounted in such a way that all
weather conditions are taken into consideration and the meas-
ured value is not falsified.
Mount on the external wall on the north or north-west side
where possible
Do not install in a "sheltered position" (e.g. in a wall niche or
under a balcony)
Not in the vicinity of windows, doors, exhaust air vents, ex-
ternal lighting or heat pumps
Not to be exposed to direct sunlight at any time of year
-
Dimensioning parameter sensor lead
Conductor material
Cable-length
Ambient temperature
Laying system
External diameter
www.gdts.one
-10
-5
0
5
8.9
7.1
5.6
4.5
42.3
33.9
27.3
22.1
35
40
45
50
55
1.4
1.1
1.0
0.8
0.7
7.0
5.9
5.0
4.2
3.6
20
25
30
35
40
45
50
55
20
25
30
35
40
45
50
55
Cu
50 m
35 °C
B2 (DIN VDE 0298-4 /
IEC 60364-5-52)
4-8 mm
452234.66.73 · FD 9910
7.4.3 Installing the strap-on sensor
It is only necessary to mount the strap-on sensors if they are in-
10
cluded in the scope of supply of the heat pump but have not yet
3.7
been installed.
18.0
The strap-on sensors can be fitted as pipe-mounted sensors or
60
installed in the immersion sleeve of the compact manifold.
0.6
Mounting as a pipe-mounted sensor
3.1
Remove paint, rust and scale from heating pipe.
Coat the cleaned surface with heat transfer compound (ap-
ply sparingly).
Attach the sensor with a hose clip (tighten firmly, as loose
sensors can cause malfunctions) and thermally insulate.
Thermal insulation
7.4.4 Hydraulic distribution system
60
The compact manifold and the dual differential pressureless
manifold function as an interface between the heat pump, the
heating distribution system, the buffer tank and, in some cases,
even the domestic hot water cylinder. A compact system is
used to simplify the installation process, so that a lot of different
components do not have to be installed individually. Further in-
formation can be found in the relevant installation instructions.
Compact manifold
The return sensor can remain in the heat pump, or should be in-
stalled in the immersion sleeve. The remaining empty space be-
tween the sensor and the immersion sleeve must be filled com-
pletely with heat transfer compound.
60
Dual differential pressureless manifold
In order for the heating circuit pumps of the generator and con-
sumer circuits to supply the flow to the return sensor, this must
be installed in the immersion sleeve of the dual differential
pressureless manifold.
Hose clip
Strap-on sensor
English
EN-7
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