Safety And Regulation Devices; Temperature Sensor - Dimplex BWP 30 HS Instructions D'installation Et D'utilisation

BWP 30HS - BWP 30HSD

2.3 Safety and regulation devices

The domestic hot water heat pump is equipped with the following
safety devices:
High pressure switch (HP)
The high pressure switch protects the heat pump against imper-
missibly high operating pressure in the refrigerant circuit, and
switches the heat pump off in the event of a fault. The heat pump
restarts automatically as soon as the pressure in the refrigerant
circuit has dropped again.
Safety temperature limiter for flange heater (STL)
The STL protects the domestic hot water system against imper-
missible temperature increases.
The flange heater switches off if the set switching value (99 °C)
is exceeded.
The flange heater cannot be switched on again until the domestic
hot water temperature has decreased to 90 °C and the reset
button (see illustration) on the STL is pressed (this must only be
done by qualified personnel).
The domestic hot water heat pump is also equipped with the fol-
lowing regulation and control devices:
Heat pump temperature controller
Temperature control in the domestic hot water cylinder and the
regulation for compressor operation is carried out by the control
electronics. Electronic sensors measure the water temperature,
which is regulated based on the setpoint. The desired tempera-
ture level (setpoint) is set via the keypad on the control panel.
Air intake temperature
The sensor connected to the controller measures the tempera-
ture in the domestic hot water heat pump directly in front of the
evaporator (air intake temperature). If the temperature falls
below the set switching value (8 ±1.5 °C, switch-back value 2K,
delay 30 min), domestic hot water preparation automatically
switches from heat pump operation to heating element operation.
With the BWP 30HSD version, the evaporator is defrosted after
a predetermined runtime has elapsed when the temperature is
below 8 °C. At temperatures below -8 °C, the controller switches
from heat pump operation to heating element operation in this
case.
EN-4

2.4 Temperature sensor

2.4.1 Temperature sensor
installation position
R1 Air intake temperature sensor (integrated)
R3 Cylinder temperature sensor
heat pump operation (integrated)
R5 Renewable sensor in the cylinder (integrated)
R10 Defrost end sensor
(only integrated in BWP 30HSD; BWP 30 HS without R10)
R13 Renewable sensor PT 1000 in the collector (optional)
2.4.2 Measured values temperature
sensor
Measured values NTC 10 sensor (R1, R3, R5, R10)
Temperature in °C
NTC-10 in k
15 20
14.9 12.1
Measured values PT 1000 sensor (R13)
Temperature
in °C
PT 1000 in k
60 70
1.232 1.271 1.309 1.347 1.385 1.423 1.461 1.498 1.536 1.573 1.611
451903.66.11 · FD 9401
-20 -15 -10 -5
67.7 53.4 42.3 33.9
25 30 35 40 45
10.0 8.4 7.0 5.9 5.0
-30 -20 -10 0 10
0.882 0.022 0.961 1.00 1.039 1.078 1.117 1.155 1.194
80 90 100 110 120 130 140 150 160
0 5 10
27.3 22.1 18.0
50 55 60
4.2 3.6 3.1
20 30 40 50
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