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7.4 Temperature sensor
The following temperature sensors are already installed or must
be installed additionally:
Outside temperature (R1) supplied (NTC-2)
Return temperature, secondary circuit (R2) installed
(NTC-10)
Flow temperature, secondary circuit (R9) installed (NTC-
10)
7.4.1 Sensor characteristic curves
-20
-15
Temperature in °C
NTC-2 in k
14.6
11.4
NTC-10 in k
67.7
53.4
15
20
25
30
35
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 (controller -N1) must correspond to the sensor char-
acteristic curve illustrated in Fig. 7.2 on page 14. The only ex-
ception is the outside temperature sensor included in the scope
of supply of the heat pump (see Fig. 7.3 on page 14)
70
60
50
40
30
20
10
0
-20
-15
-10
-5
0
5
10
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
Fig. 7.3:Sensor characteristic curve NTC-2 according to DIN 50350 Out-
side temperature sensor
EN-14
-10
-5
0
5
8.9
7.1
5.6
4.5
42.3
33.9
27.3
22.1
40
45
50
55
1.4
1.1
1.0
0.8
0.7
7.0
5.9
5.0
4.2
3.6
15
20
25
30
35
40
45
50
External temperature in [°C]
15
20
25
30
35
40
45
50
External temperature in [°C]
452167.66.42 · FD 0008
7.5 Electrical connection
7.5.1 General
All electrical installation work must be carried out by a trained
electrician or a specialist for the specified tasks in accordance
with the
installation and operating instructions,
country-specific installation regulations (e.g. VDE 0100),
technical connection conditions of the energy suppliers
and supply grid operators (e.g. TAB) and
local conditions.
10
3.7
To ensure that the frost protection function of the heat pump
18.0
works properly, the heat pump manager can only be briefly dis-
connected from the power supply and the flow must be main-
60
tained through the heat pump.
0.6
CAUTION!
3.1
The switch box must be designed to have restricted breathing
in accordance with DIN EN 60335-2. It may only be opened by
authorised and qualified after-sales service technicians in
connection with maintenance or service work. Prior to
commissioning or after the work is complete, a check must be
carried out to determine restricted breathing in accordance
with the repair manual.
All supply lines on the heat pump must be fed through the des-
ignated free cable glands into the connection box provided on
the side of the switch box. The lines must be firmly screwed into
their feed-throughs. Opening the restricted-breathing switch
box for this purpose is not necessary.
CAUTION!
Changes on the restricted breathing switch box, such as
additional cable glands or incomplete screw connections on
the cable glands and the switch box cover are not permitted.
7.5.2 Electrical installation work
55
60
CAUTION!
Work outdoors on electrical equipment or live components
may only be carried out in dry weather conditions. In wet
conditions (rain, snow etc.), the device must be closed
correctly.
A standard 5-core cable is used to connect the heat pump to
the power supply.
The cable must be provided on-site. The conductor cross sec-
tion is selected in accordance with the power consumption of
the heat pump (see attachment Device Information) and the
applicable VDE (EN) and VNB regulations.
An all-pole disconnecting device (e.g. circuit breaker, main
55
60
switch, utility company blocking contactor, power contactor,
mobile switch-off device (see cap. 3.4 on page X) for mainte-
nance etc.), with a contact clearance on each pole according to
the conditions of overvoltage category III (min. 3 mm), must be
included in the installation for switching off from the mains.
These switching equipment components must be installed out-
side the safety zone (Cap. 6.1 on page 7) (tripping current ac-
cording to device information). When installing a residual cur-
rent device, a version that is suitable for DC components that
could occur due to electronic equipment, for example, must be
used (RCD type B).
LA 60P-TUR
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