12
Ventilation mode
If the 'heat pump' switch on the heat pump is in position
“
❍
❍
❍
❍
“
(Off), the HPWH can be operated in the ventilation
mode, provided the slide switch '1' is in position "
I
"
. In this case, three ventilation settings can be selected
without the water heating function of the heat pump being activated.
Heat pump mode
If the 'heat pump' switch on the HPWH is activated (position “
“) and the slide switch on the remote control is in
position "
I
"
, water heating, if required, is carried out by the heat pump. In this case, the fan will automatically be
set to a more effective (next higher) setting by the electronic controller.
6.2.3 'Heat pump' switch
If the 'heat pump' switch is placed in position “
“ (On), the heat pump is ready for operation and operating
(depending on the switch position on the remote control) until the max. heat pump temperature is reached.
6.2.4 'Immersion heater' switch
The integrated 1.5 kW heating element can be activated by means of the 'immersion heater' switch when there is
an increased demand for hot water or if a higher hot water temperature (> 58
±
2 °C) is desired.
When the 'immersion heater' switch is in position " I ", the tank content is heated up to the maximum temperature
of the immersion heater controller (factory setting 65 °C); at hot water temperatures
>
58 °C, hot water preparation
is effected exclusively by the immersion heater. As an option, the immersion heater can also be configured for
external activation (see item 5.3). When the 'immersion heater' switch is in position “
” (automatic mode), the
tank content is heated (58°C) by the immersion heater at exhaust air temperatures of
<14 °C.
Note
➪
➪
➪
➪
Immersion heater controller
The immersion heater controller is a second control device for the operating range of the electric immersion
heater that operates independently of the hot water controller. The factory-set switch-off temperature of 65 °C can
be changed by a qualified expert (see item 2.3)
6.2.5 'Heat exchanger' switch
(unique to LBW300W)
Actuating this switch enables external heat exchanger operation, i.e. water heating (e.g. in winter) can be
performed using a supplementary heat source (e.g. boiler, solar system, etc.), provided the required external
electrical connection has been established. The regulation of the hot water temperature takes place via the
electronic controller of the HPWH.
••••
Sensor tube for external temperature sensor
On the rear of the HPWH, a vertical sensor tube,
(inside
∅
12mm) for an external temperature sensor
(the opening in the base plate is sealed with a
bushing socket) and in the rear panel a free cable
bushing are provided.
Fig. 9: Mounting position of external temperature sensor
(shown with appliance hood removed)
