Functions on the front panel
Heating curve offset
With the “Heating curve offset” button you can
change the offset of the heating curve and
thus the room temperature.
Operating mode indications
The two lamps next to the operating mode selector
indicate the selected operating mode. This should
not be confused with the indicating lamps in the
numerical display.
Top lamp “Addition”
Lit The immersion heater may be connected if
necessary, i.e. when the compressor cannot
single handed cover the heating require-
ment.
Not lit The immersion heater is disabled.
Flashing The outdoor temperature is higher than the
set blocking temperature for the immer-
sion heater (however, not when immersion
Numerical display
In normal mode the boiler temperature is displayed
here. The two digits on the left indicate the “chan-
nel number” and the two on the right the reading/
setting of that channel.
In the event of a malfunction, an error message is
displayed alternately with channel number and val-
ue. See “Dealing with malfunctions” – “Indications
on the numerical display”.
Extra Hot Water
Pressing the “Extra hot water” button in-
creases the hot water temperature to ap-
proximately 60 °C, providing a rise in the
hot water capacity for approximately 24 hours. The
integrated lamp is lit in this mode. FIGHTER 640P
then reverts to normal mode.
Pressing the button once again enables an ongo-
ing function where the hot water temperature is
increased for 6 hours once a week. The integrated
lamp flashes in this mode.
Pressing the button yet again returns to normal
mode.
D
C
F
E
Operating status
When the heat pump is started, all functions
(immersion heater, circulation pump and au-
tomatic heating control system) are running.
When the operating mode is changed, the changes
are saved in memory so that the heat pump starts in
this chosen operating mode in the event of a restart,
for example after a power failure.
Pressing the “Operating mode” button once disa-
bles the immersion heater.
Pressing it once more stops the circulation pump
as well. However, note that the circulation pump is
operational during hot water heating.
Pressing it yet again reconnects the immersion
heater and the circulation pump.
Channel selection
Use the “Channel selection” button to scroll
forward through the numerical display’s chan-
nels to see the required reading or setting
Available readings/settings include:
1 Boiler temperature
2 Flow temperature
3 Outdoor temperature
4 Evaporation temperature
5 Extract air temperature
6 Heating curve
7 Heating curve offset
8 Hot water temperature
9 Blocking temperature, immersion heater
(outdoor temperature)
10 Calculated flow temperature
11 Service mode
12–27 Service ducts, Note! Only for professionals
Channel 1 is shown automatically after approxi-
mately 4 hours.
Heating curve selection
Use the “Heating curve selection” knob to
set the automatic heating control system;
see under “Room temperature”.
G
H
I
J
heater is blocked via the operating mode
selector).
Lower lamp “Circulation pump”
Lit The circulation pump is operational.
Not lit Circulation pump only operational during
hot water heating.
Flashes Time/temperature programme for the dry-
ing process regarding floor heating is opera-
tional. This function is normally only used
during installation.
Ventilation
Ventilation is increased for 6 hours if the
“Ventilation” button is pressed in. The inte-
grated lamp flashes in this operating mode.
FIGHTER 640P then reverts to normal mode.
Pressing the button again reconnects the ventilation
to normal mode. The integrated lamp goes out in
this operating mode.
Note! If FIGHTER 640P is installed in a large house
so that no outdoor air is utilised only exhaust air, the
ventilation will not be increased in “party mode”.
To Next Page
Loading...
