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Hot-Water Heat Pump Operation; "Heating Element" Switch - Dimplex BWP 30 HMW Montage- Und Gebrauchsanweisung

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6.2 Hot-Water Heat Pump
Operation
Control panel
Temperature indicator
The thermometer sensor (analogue distance thermometer)
measures the hot-water temperature in the upper part of the
hot-water cylinder. The indicator is located on the control
panel.
1
5
1 "Heat Exchanger" switch
The switch position "I" allows a second heat generator to be connected

2 "Heating Element" switch

When the switch is in "I" position, the heating element is permanently switched
on. In the " " position, the heating element switches into automatic operation
3 "Heat Pump" switch
Switch position „O"
heat pump "OFF",
in switch position "I"
heat pump "ON"
4 Temperature indicator
5 "Hot-Water Temperature" rotary controller
Hot-water temperature switch (set-value generator)
Left-hand stop
min. temperature
Right-hand stop
max. temperature
1. The illustration shows the hot-water heat pump control panel with internal heat
exchanger. The "Heat Exchanger" switch is not required for hot-water heat
pumps without internal heat exchanger.
www.dimplex.de
Hot-water temperature controller (rotary controller)
The rotary button is used to set the desired hot-water tempera-
ture. If the cylinder temperature is lower than the set hot-water
temperature, the heat pump is switched on (if the heat pump
switch is in the "Heat Pump Operation ON" position).
The maximum hot-water temperature that can be attained with
the heat pump is 60 °C ±1.5 K. The standard heating element
can be used if higher temperatures are required.
Notes on economical use of energy:
To achieve a high COP with the integrated heat pump while
cutting water level losses, the hot-water heat pump should
normally not be operated at a hot-water temperature of more
than 45 °C (see illustration).
Only set the temperature controller to higher values or man-
4
ually switch on the heating element if necessary.
To ensure optimum compressor operating times and down-
times, it is important to avoid manual and repeated switching
on and off of the heat pump!
3
2
"Heat Pump" switch
The heat pump is ready for operation when the "Heat Pump"
1
switch is in the
inder drops below the set value, the heat pump will be activated
until the desired hot-water temperature has been reached.
"Heating Element" switch
If more hot water is needed or if a higher water temperature
(> 60 ±2 °C) is desired, the "Heating Element" switch can be
used to switch on the integrated 1.5 kW radiator.
If the "Heating Element" switch is in the "I" position, the approx.
upper third of the cylinder will be heated up to the maximum tem-
perature of the heating element controller (factory setting 65 °C);
at hot-water temperatures > 60 °C, DHW preparation is done by
heating element only. It is possible to optionally control the heat-
ing element via an external switch (see point 5.3). If the "Heating
Element" switch is in the " " position (automatic operation) and
the air temperature is 8 ±1.5 °C (dead-band value 3 K), the cylin-
der volume is heated up (nominally only) to the setpoint temper-
ature of the hot-water temperature controller.
Note → Heating element controller
The heating element controller is a second control unit for the op-
erating range of the electric heating element, and independent of
the hot-water controller. The factory set switch-off temperature of
65 °C can be changed by a technician (see Point 2.4)
"I"
position. If the hot-water temperature in the cyl-
6.2
EN-7

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Bwp 30 hm