Nibe FIGHTER 640P User manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS
FIGHTER 640P
MOS GB 0850-6
FIGHTER 640P
711114
1,2, ...
LEK

1
FIGHTER 640P
For Home Owners
Contents
For home Owners
General __________________________________ 2
System description _______________________ 3
System diagram ___________________________________ 3
Principle of operation ______________________________ 3
Front panel ______________________________ 4
Functions on the front panel ______________ 4
Room temperature _______________________ 6
Heating control system _____________________________ 6
Default setting ____________________________________ 6
Readjusting the default settings ___________ 6
Changing the room temperature manually ____________ 6
Blocking the immersion heater_______________________ 6
Ventilation _______________________________________ 7
Basic values for the automatic heating control__________ 7
Maintenance routines ____________________ 8
General __________________________________________ 8
Cleaning the air filter_______________________________ 8
Cleaning the outer wall grilles _______________________ 8
Cleaning the outdoor air damper ____________________ 8
Checking and cleaning the particle filter_______________ 8
Cleaning the ventilation devices______________________ 9
Checking the safety valves __________________________ 9
Pressure gauge____________________________________ 9
Extract air temperature _____________________________ 9
Sacrificial anode test _______________________________ 9
Dealing with malfunctions _______________ 10
Low temperature or a lack of hot water ______________ 10
Low or no ventilation _____________________________ 10
Low room temperature ____________________________ 10
High room temperature ___________________________ 10
Switch position
D
a
y
15
12
24
21
618
R
3
9
15
ON OFF
__________________________ 10
Resetting pressostats ______________________________ 10
Indications on the numerical display _________________ 11
High extract air temperature _______________________ 11
Help starting the circulation pump __________________ 11
For the Installer
General information for the installer ______ 12
Transport and storage _____________________________ 12
Handling ________________________________________ 12
Assembly________________________________________ 12
Maximum boiler and radiator volumes _______________ 12
Inspection of the installation _______________________ 12
Temperatures in FIGHTER 640P _____________________ 12
Channel description_______________________________ 12
Pipe connections ________________________ 14
General _________________________________________ 14
Pump diagram ___________________________________ 14
Available pressure kPa_____________________________ 14
Flow l/h _________________________________________ 14
Installation method ______________________ 15
Tap water connection _____________________________ 15
Ventilation connection ___________________ 16
General _________________________________________ 16
Ventilation flow __________________________________ 16
Duct installation __________________________________ 16
Fan diagram _____________________________________ 17
Example, reading off the fan output _________________ 17
Exhaust air duct __________________________________ 17
Adjustment______________________________________ 17
Available pressure, Pa _____________________________ 17
Airflow (m3/h)____________________________________ 17
Fan output, W ___________________________________ 17
Electrical connections ____________________ 18
Connection______________________________________ 18
Resetting the temperature limiter ___________________ 18
Max phase current________________________________ 18
Immersion heater_________________________________ 18
Changing the output______________________________ 18
Connecting the outdoor sensor _____________________ 19
Stove monitor____________________________________ 19
Heat blocking (Room thermostat) ___________________ 19
External compressor supply ________________________ 20
External compressor control ________________________ 20
Separate supply to the immersion heater _____________ 20
Commissioning and adjusting ____________ 21
Preparations _____________________________________ 21
Filling the hot water heater ________________________ 21
Filling the heating system __________________________ 21
Venting the heating system ________________________ 21
Starting _________________________________________ 21
Readjustment ____________________________________ 21
Centralised load control and load monitor ____________ 21
Setting the ventilation_____________________________ 22
Drying process ___________________________________ 23
Setting the automatic heating control system24
Setting with diagrams _____________________________ 24
Service _________________________________ 25
Opening the cover on the distribution box____________ 25
Refrigerant system ________________________________ 25
Resetting the miniature circuit breakers ______________ 25
Cleaning the fan _________________________________ 25
Emptying the hot water heater _____________________ 25
Draining the heating system________________________ 25
Sacrificial anode replacement_______________________ 25
Dimensions _____________________________ 26
Dimensions and setting-out coordinates______________ 26
Electrical circuit diagram _________________ 27
Component locations ____________________ 31
List of components ______________________ 33
Technical Data ___________________________ 34
Enclosed kit _____________________________ 34
Accessories _____________________________ 34
Docking ________________________________ 35
Docking to a gas boiler ____________________________ 35
Docking to the accumulator tank ___________________ 36
Low tariff _______________________________________ 36
High tariff _______________________________________ 36
Equipment ______________________________________ 36

2FIGHTER 640P
For Home Owners
General
In order to get the ultimate benefit from your heat pump FIGHTER 640P you should read through the
“For Home Owners” section in this Installation and Maintenance Instruction.
FIGHTER 640P is a combined exhaust air and outdoor air heat pump. This means it utilises energy in
ventilation air and outdoor air when this does not fall below -5 °C. This energy is used for hot water
and heating the house.
A microprocessor ensures that the heat pump always works efficiently.
FIGHTER 640P uses R290 (Propane) environmental brine.
To be filled in when FIGHTER 640P is installed
General
Installation date
Manufacturing number
Installation engineers
Chosen output, immersion heater
Circulation pump setting
Fan speed
Selected knob position for
potentiometer
Measured total airflow
Basic ventilation (Potentiometer "Exhaust air" A)
Normal ventilation (Potentiometer “Exhaust air” B)
Forced ventilation (Potentiometer "Exhaust air" C)
Set damper angle, exhaust air (If this is installed)
Set damper angle, outdoor air (If this is installed)
Setting “Heating curve selection”
Setting “Heating curve offset”
Setting “Blocking temperature immersion heater”
Pre-pressure expansion vessel
l/s
m
3/h
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
Rights to make any design or technical modifications are reserved.

3
FIGHTER 640P
For Home Owners
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System description
Principle of operation
FIGHTER 640P consists of an electric boiler with enam-
elled water heater and a heat pump that recovers energy
from ventilation air and outdoor air when this is - 5 °C or
warmer. If the outdoor temperature is colder than - 5 °C
a damper closes so that only ventilation air is used as the
heat source. The recovered energy is supplied to the boiler.
The heat pump must be installed in a ventilation system
intended for mechanical exhaust air.
When the exhaust air at room temperature together with
the outdoor air passes through the evaporator, the refriger-
ant evaporates because of its low boiling point. In this way
the heat in the air is transferred to the refrigerant.
The refrigerant is then compressed in a compressor, caus-
ing the temperature to rise considerably.
The warm refrigerant is led to the condenser (plate heat
exchanger). Here the refrigerant gives off its heat to the
boiler water, so that its temperature drops and the refriger-
ant changes state from gas to liquid.
The refrigerant then goes via filters to the expansion valve,
where the pressure drops and the temperature is lowered
further.
The refrigerant has now completed its circulation and re-
turns to the evaporator.
When the heat pump’s output is not solely sufficient an
integrated immersion heater is engaged. The output of the
immersion heater is 9.0kW. Output as set at the factory is
8.0 kW.
System description
FrånluftAvluft Uteluft FrånluftAvluft Uteluft
Utan elpatron, Genius
System diagram
C
When the room air and
any outdoor air has passed
the heat pump the temper-
ature has dropped signifi-
cantly as the heat pump
has utilised the energy in
the air.
H
When the outdoor air is -5
°C or warmer it is led into the
heat pump.
G
The air from the
kitchen fan goes
directly out into a
separate duct.
B
The warm room air
is fed via the duct
system to FIGHTER
640P.
E
Outdoor air is drawn into
the house.
A
The warm room air is
drawn into the duct sys-
tem via the exhaust air
terminal.
F
Air is transported from
rooms with outdoor air
devices to rooms with
exhaust air devices.
D
FIGHTER 640P supplies the
house with both hot water
and room heating.
Extract air Outdoor air Exhaust air

4FIGHTER 640P
For Home Owners
Front panel
Front panel
Switch
with three modes 0 - 1 - :
0 The heat pump completely switched off.
1 Normal mode.
All control functions connected.
Standby mode. This mode is used during start
up and with any operating disruptions.
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Numerical dis-
play
Switch Indicator lamps
Extra Hot Water
Operating status
Heating curve offset
D
Ventilation
CBA
E
J
Channel selection
G
Heating curve selection
H
I
Operating mode indications
F
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Check that there is water in the sys-
tem before turning the switch to
1 or .
When mode is selected, the
maximum boiler and flow tempera-
ture are set with the standby mode
thermostat. This is important in order
to prevent any damage due to a too
high temperature with, for example,
a floor heating system.
Note!
A
Top lamp
Lit Compressor is operational.
Not lit Compressor is not operational.
Midmost lamp
Lit Automatic defrosting.
Not lit Normal mode.
Lower lamp
Lit Immersion heater is operational.
Not lit Immersion heater is not operational.
Flashing Immersion heater or part of the immersion
heater blocked via centralised load control/
tariff control or due to a 2 hour delay with
start of FIGHTER 640P.
Indicator lamps
B
Functions on the front panel

5
FIGHTER 640P
For Home Owners
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
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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”.

6FIGHTER 640P
For Home Owners
Room temperature
Heating control system
The indoor temperature depends on several factors. During
the hot season, solar radiation and heat given off by peo-
ple and equipment are sufficient to keep the house warm.
When it gets colder outside, the heating system must be
started. The colder its gets, the hotter the radiators must
be.
This adjustment is made automatically, however the basic
settings must first be made on the boiler, see the section
“Room temperature” – “Default setting”.
Default setting
The basic heating is set with the “Heating curve selection”
knob and with the “Heating curve offset” knob.
If you do not know the correct settings use the basic data
from the map opposite.
If the required room temperature is not obtained, readjust-
ment may be necessary.
Note! Wait one day between settings so that the tempera-
tures have time to stabilise.
Readjusting the default settings
Cold weather conditions
If the room temperature is low, increase the “Heating curve
selection” setting by one step clockwise.
If the room temperature is high, reduce the “Heating curve
selection” setting by one step anti-clockwise.
Warm weather conditions
If the room temperature is low, increase the “Heating curve
offset” setting by one step clockwise.
If the room temperature is high, reduce the “Heating curve
offset” setting by one step anti-clockwise.
Changing the room temperature manually
If you want to temporarily or permanently lower or raise
the indoor temperature relative to the previously set tem-
perature, turn the “Heating curve offset” knob anti-clock-
wise or clockwise. One line approximately represents a 1
degree change in room temperature.
Blocking the immersion heater
FIGHTER 640P offers the possibility of blocking immersion
heater operations as a function of the outdoor tempera-
ture.
This means that when the outdoor temperature is above
a set value the immersion heater is not connected despite
compliance with the normal control conditions. The set
temperature should be selected so that the heating re-
quirement and the hot water requirement are lower than
the heat pump’s capacity above this outdoor temperature.
This temperature is dependent on the size of the house,
degree of insulation, required room temperature and hot
water usage.
Setting this temperature takes place according to the fol-
lowing:
Scroll to channel 9 using the “Channel selection” button.
The set value is then shown on the numerical display. To
change the value, press the “Ventilation” button (increase
the value one step) alternatively the “Extra hot water” but-
ton (lowers the value one step).
The value can be set between +1 and +25 °C. If this func-
tion is not required select +25 °C.
Note! The immersion heater can also be blocked perma-
nently irrespective of the outdoor temperature by using the
“Operating mode” button, see the section “Functions on
the front panel” – “Functions on the front panel”.
Note! However, when the “Extra hot water” function is ac-
tivated the immersion heater is permitted to be operational
irrespective of the above blocking.
Room temperature
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An increase in the room temperature may
be “inhibited” by the radiator or under-
floor heating thermostats, if so these must
be turned up.
Note!

7
FIGHTER 640P
For Home Owners
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
- 40 °C
UTETEMPERATUR
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FRAMLEDNINGSTEMPERATUR
- 20 - 30
FÖRSKJUTNING
VÄRMEKURVA (-2)
VÄRMEKURVA
30
40
50
60
70
°C
FRAMLEDNINGSTEMPERATUR
- 40 °C
UTETEMPERATUR
- 10
0
10 - 20 - 30
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
1514 13 12 11 10
8
7
6
5
4
3
2
1
- 40 °C
UTETEMPERATUR
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FRAMLEDNINGSTEMPERATUR
- 20 - 30
FÖRSKJUTNING
VÄRMEKURVA (+2)
9
VÄRMEKURVA
VÄRMEKURVA
- 5
+ 5
FÖRSKJUTNING
VÄRMEKURVA (0)
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
- 40 °C
OUTSIDE TEMPERATURE
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FLOW TEMPERATURE
- 20 - 30
HEATING
CURVE OFFSET (-2)
HEATING CURVE
30
40
50
60
70
°C
FLOW TEMPERATURE
- 40 °C
OUTSIDE TEMPERATURE
- 10
0
10 - 20 - 30
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
1514 13 12 11 10
8
7
6
5
4
3
2
1
- 40 °C
OUTSIDE TEMPERATURE
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FLOW TEMPERATURE
- 20 - 30
HEATING
CURVE OFFSET (+2)
9
HEATING CURVE
HEATING CURVE
- 5
+ 5
HEATING
CURVE OFFSET (0)
HEATING CURVE
OFFSET, HEAT CURVE
FLOW TEMPERATURE
OUTDOOR TEMPERATURE
HEATING CURVE
HEATING CURVE OFFSET OUTDOOR TEMPERATURE
FLOW TEMPERATURE
HEATING CURVE
HEATING CURVE OFFSET OUTDOOR TEMPERATURE
FLOW TEMPERATURE
Room temperature
Basic values for the automatic heating control
The association between the outdoor temperature and the
flow temperature is set using the “Heating curve selection”
(37) and “Increase/reduce heat” buttons (38).
The design flow temperature and the design outdoor
temperature are used as the input data in the adjoining
diagrams to read the curve slope, which is set using the
“Heating curve selection” knob.
The setting on the “Increase/reduce heat” knob determines
at which outdoor temperature heating should stop. If the
offset is set to 0 this means heating stops at the outdoor
temperature of +20°C. As you normally have a degree of
free heating a value below zero can be set with this knob.
The adjoining diagram shows the curve at offsets - 2, ± 0
and + 2. The default setting from the factory is curve 10
on “Heating curve selection” and offset - 2 on “Increase/
reduce heat”.
In those cases where the heating system’s design flow
temperature is not known the map below can be used as a
guide for setting “Heating curve selection”.
The first figure applies to a radiator system and the figure
in brackets applies to floor heating installed in a concrete
floor structure where the max flow temperature is 35°C.
When the floor heating system is installed in a wooden
floor structure you can start with the figure before brackets
and reduce this value by two units.
A suitable setting on the “Increase/reduce heat” knob is - 2
for radiator systems and -1 for floor heating.
Diagram with offset - 2
Diagram with offset + 2
Diagram with offset 0
Ventilation
During installation / adjustment, select continuous ventila-
tion or reduced ventilation for when the compressor is not
running. The function for the two alternatives is as follows:
Continuous ventilation. Normal ventilation in the1.
house regardless of whether the compressor is running
or not. Ventilation can be increased temporarily via the
"Ventilation" button on the front panel.
Varied ventilation. When the compressor is not run-2.
ning, ventilation is maintained at a relatively low level
in the house, this is known as basic ventilation. When
the compressor starts rotating, the fan starts rotating
to achieve a higher level of ventilation, known as nor-
mal ventilation. Ventilation can be increased temporar-
ily via the "Ventilation" button on the front panel.

8FIGHTER 640P
For Home Owners
Maintenance routines
General
The heat pump and its ventilation ducting require some
regular maintenance when the following points should be
checked.
The numbers in brackets refer to the section “Component
locations”.
Cleaning the air filter
The heat pump's air filter needs to be cleaned regularly
(approximately 4 times per year). The cleaning time inter-
vals vary depending on the amount of dust in the exhaust
air and outdoor air.
Set the switch (8) to position• ”0”.
The upper service cover is opened by pulling the lower•
section outwards. The cover can then be lifted off.
The inner cover is secured by a magnetic strip on the•
lower edge.
Pull out the holder, take out the filter and shake off•
any dirt. (When the filter is very dirty, turn it upside-
down and wash it carefully with water.)
Check that the filter is not damaged. New original fil-•
ters can be ordered from NIBE.
Carry out assembly in reverse order.•
When cleaning the filter also check the boiler pres-•
sure, see the section “Maintenance routines”
“Pressure gauge”.
Also see “Indications on the numerical display, error code
A-01”
Maintenance routines
Cleaning the outer wall grilles
The outer grille on the outdoor air inlet should be cleaned
once a year.
Cleaning the outdoor air damper
When cleaning the outer wall grille even the outdoor air
damper in FIGHTER 640P should be cleaned. First switch
off the heat pump. Now open the upper service cover
as described in the section “Maintenance routines” –
“Cleaning the air filter”. Pull out the air filter with its hold-
er, (see the picture). The damper can now be cleaned with
a brush. Hold a cloth or similar under the damper so that
dust does not fall onto components in the fan enclosure.
Checking and cleaning the particle filter
In some cases, the heating system may contain dirt parti-
cles that are caught by the particle filter (100) in FIGHTER
640P. It is therefore important to check the filter.
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9
FIGHTER 640P
For Home Owners
Maintenance routines
Checking the safety valves
FIGHTER 640P has two safety valves, one for the heating
system and one for the water heater.
The heating system’s safety valve (52) must be completely
tight, but the hot water safety valve (47) may occasionally
release some water after hot water has been used. This is
because the cold water, which enters the water heater to
replace the hot water, expands when heated causing the
pressure to rise and the safety valve to open.
The safety valves must be checked regularly. Check one
valve at a time as follows:
Open the valve.•
Check that water flows through the valve.•
Close the valve.•
The heating system may need to be refilled af-•
ter checking the safety valve (52), see the section
“Commissioning and adjusting” – “Filling the heating
system”.
Cleaning the ventilation devices
The building’s ventilation devices should be cleaned regu-
larly with a small brush to keep the correct ventilation.
The device settings must not be changed.
Note! If you take down more than one ventilation device
for cleaning, do not mix them up.
Check that the ventilation opening (84), behind the lower
front cover, is not blocked. Clean if necessary.
Extract air temperature
Check that the temperature of the extract air (channel 5) is
clearly lower than the room temperature when the com-
pressor is operational, also see the section “Dealing with
malfunctions” – “High extract air temperature”. It is nor-
mal that the extract air temperature varies.
Pressure gauge
Pressure gauge (42) is located behind the upper service
cover. The pressure gauge reading should be between the
initial pressure of the expansion vessel and 2.5 bar (25
mvp). See “Commissioning and adjusting”.
Sacrificial anode test
The sacrificial anode should be checked regularly (at least
four times a year).
This is done by holding in the sacrificial anode test but-
ton. If the pointer remains in the red field the anode must
be changed immediately as the anode is spent and can no
longer fulfil its protection function.
Används i 640PM sid 14
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52
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Kesseldruck
R
0 Ausgeschaltet
1 Normalbetrieb
R Reservebetrieb
Achtung!
Kontrollieren Sie, daß der
Kessel vor Inbetriebnahme
gefüllt ist.
Kompressor in Betrieb
Enteisung läuft
Zusatzwärme in Betrieb
Blinkende Dioden:
Siehe Bedienungs-
anweisungen!
Kanal Wert
Verschiebung
der Wärmekurve
(Höhen/Senken der Wärme)
Wärmekurven-
wahl
155
10
+2-2
020
Umwälzpumpe
Zusatzwärme
Betriebsstufe
Druck (Kessel/Leitungssystem):
0,5 – 2,5 bar. Vor dem Einfüllen,
Bedienungsanleitungen kontrollieren
Rückstellen des Temperatur-
begrenzers
Rückstellen der Sicherung
1
0
0 Ausgeschaltet
1 Normalbetrieb: Sämtliche Steuerfunktionen eingekoppelt.
R Reservebetrieb: Wartung erforderlich. Die Wärme von Hand
mit dem Schunt regulieren.
Normale Ventilation.
Extra Warmwasser:
Erhöhung der Speichertemperatur.
Wiederholtes Drücken ergibt folgenden Betrieb:
– Erloschene Diode
– Leuchtende Diode
– Blinkende Diode
Betriebsstufe:
Leuchtende Diode indikiert Wahlfunktion.
Knopfdrücken für Änderung.
Kanalwahl
Regelmäßige Wartung von:
Luftfilter
Ventilator
Luftventilen
Sicherheitsventilen
Sicherheitsventile im Leitungssystem:
Regelmäßig bedienen durch Drehen des
Ventilgriffes gegen den Uhrzeigersinn.
Bei Bedarf System nachfüllen;
Siehe Bedienungsanleitungen!
Kanalwahl:
1 Kesseltemperatur
2 Vorlauf für Heizsystem
3 Außentemperatur
Blinkende Indikierungen:
A01 = Filterreinigung notwendig
A02 = (Gefierrisiko in Zuluftbatterie)
A03 = Kompressorschutz aktiviert
4 Verdampfungstemperatur
5 Fortlufttemperatur
6 Wärmekurvenwahl
7 Verschiebung der Wärmekurve
8 Temperatur für Kompressorfühler
9 (Zulufttemperatur)
10 Berechnete Vorlauftemperatur
11 Abweichung von Vorlauftemperatur
12 Service A
13 Service B
14 Service C
15 Service D
16 Service E
17 Service F
18 Service G
19 Service H
20 Service I
21 Service J
maxmin
: Normale Temperatur
: Erhöhte Temperatur während 24 Stunden
: Periodisch erhöhte Temperatur Die Einstellung ist abhängig vom
Wärmesystemtyp sowie der
geographischen Lage.
Zwecks korrekter Einstellung den
Planer zu Rate ziehen.
Die Richtwerte sind in der Be-
dienungsanleitung aufgeführt.
Extra Warmwasser
Achtung!
In Betriebsstufe Ventilation
"Aus" hat man keine Wärme-
rückgewinnung.
Ventilation:
Erhöht
Normal
Aus
(blinkend)
(leuchtend)
(erloschen)
2
1bar 3
04
T G
0 0
1
R
ANODEN-TESTER
Kontrollknopf drücken
Rot:Anode austauschen

10 FIGHTER 640P
For Home Owners
Dealing with malfunctions
Dealing with malfunctions
Low temperature or a lack of hot water
Note! The hot water capacity can be increased for 24 hours
by pressing in the button (18).
Large amounts of hot water were used.•
Circuit or main MCB tripped.•
Possible earth circuit-breaker tripped.•
Switch (8) set to “0”.•
MCB (7) tripped. See the section “Service” –•
“Resetting the miniature circuit breakers”.
Closed or throttled filler valve (46) on the water heater.•
Thermostat backup heating set too low (3).•
Drying process for floor heating is activated.•
Low or no ventilation
Defrosting mode, lamp (31) illuminates continuously•
Filter (63) clogged (possibly replace).•
Exhaust air device blocked or throttled down too•
much.
Circuit or main MCB tripped.•
Possible earth circuit-breaker tripped.•
MCB (7) tripped. See the section “Service” –•
“Resetting the miniature circuit breakers”.
Drying process for floor heating is activated.•
Low room temperature
Circuit or main MCB tripped.•
Possible earth circuit-breaker tripped.•
MCB (7) tripped. See the section “Service” –•
“Resetting the miniature circuit breakers”.
Tripped temperature limiter (6). (Contact service)•
Automatic heating control system settings not correct•
(40).
Circulation pump (16) stopped. See the section•
“Dealing with malfunctions” – “Help starting the cir-
culation pump”.
Air in boiler or system.•
Close valve (44) and/or (50) in the radiator circuit.•
Initial pressure in expansion vessel too low. This is•
indicated by low pressure on the pressure gauge (42).
Contact the installer.
Thermostat backup heating set too low (3).•
Clogged particle filter (100).•
Drying process for floor heating is activated.•
High room temperature
Automatic heating control system settings not correct.•
Drying process for floor heating is activated.•
Switch position
D
a
y
15
12
24
21
618
R
3
9
15
ON OFF
The compressor and electronic controls of the
heat pump are off.
The numerical display is off, FIGHTER 640P
does not produce hot water.
The fan is operational and the immersion heater is control-
led by a separate thermostat (3). When floor heating is
installed the cut-out temperature on the thermostat should
be lowered to prevent damage to the floor. The thermostat
should be reset once the malfunction has been rectified.
Resetting pressostats
To reset a tripped pressure switch, press the button on the
top of it; see diagram. The pressostats are located behind
the upper service cover.
11
22
33
1, 2, ...
Art.nr. 611971
Art.nr. 611971
If the operating disturbance cannot be rectified by means of the above an installation
engineer should be called.
If necessary set the switch to .
In the event of malfunction or operating disturbances first check the points below:
Low pressure pressostat
Normally this switch resets automatically so it does not
have a reset button.
High pressure pressostat
Work behind covers secured by screws may
only be carried out under the supervision
of a qualified installation engineer.
Note!
3

11
FIGHTER 640P
For Home Owners
Dealing with malfunctions
Indications on the numerical display
Error code A - 01 on the numerical display
Indication that the air filter needs to be cleaned (error•
code is shown every third month).
When the filter has been cleaned reset the fault code by
turning the heat pump off and on again.
Error code A - 03 on the numerical display
A high pressure or low pressure pressostat in the refriger-
ant circuit has tripped, see the section “Resetting presso-
stats”.
High-pressure pressostat: Settings for “Heating curve•
selection” and “Heating curve offset” too high (can
also be seen on Channels 6 and 7 on the numerical
display). Also see section “Room temperature”.
Low-pressure pressostat: Ventilation flow too low or•
not enough refrigerant.
When the cause of the fault has been rectified, the error
code must be cleared from the display by switching the
heat pump off and on again.
Error code A - 05 on the numerical display
Stove monitor
External differential pressure monitor. Compressor and•
fan stop when the pressure difference between the
chimney and the stove’s installation area is too great
Fault code resets automatically when the pressure differ-
ence returns to normal.
Midmost lamp lit
Defrosting.•
When there is too much ice on the evaporator, defrost-
ing takes place. After this, the compressor starts auto-
matically if heating is needed. Frequent defrosting is a
sign of clogged ventilation or dirty filter. See the section,
“Maintenance routines” – “Cleaning the air filter”.
High extract air temperature
If the extract air temperature (read on channel 5) is only
insignificantly lower than the room temperature at the
same time as the compressor is operational, this indicates
a probable fault in the refrigerant circuit or its controller.
Request a service.
When the compressor is not operational the extract air
temperature lies at about the same level as the room tem-
perature.
Help starting the circulation pump
Shut down FIGHTER 640P by turning the switch (8) to•
“0”.
The upper service cover is opened by pulling the lower•
section outwards. The cover can then be lifted off.
The inner cover is secured by a magnetic strip on the•
lower edge.
Loosen the venting screw with a screwdriver. Hold•
a cloth around the screwdriver blade as a certain
amount of water may run out.
Insert a screwdriver and turn the pump rotor.•
Screw in the venting screw.•
Start FIGHTER 640P and check whether the circulation•
pump runs.
It is usually easier to start the circulation pump with
FIGHTER 640P running, switch (8) set to “1”. If helping the
circulation pump to start is performed with FIGHTER 640P
running, be prepared for the screwdriver to jerk when the
pump starts.
11
22
33
1, 2, ...
Art.nr. 611971
Art.nr. 611971
11
22
33
1, 2, ...
Art.nr. 611971
Art.nr. 611971
11
22
33
1, 2, ...
Art.nr. 611971
Art.nr. 611971
11
22
33
1, 2, ...
Art.nr. 611971
Art.nr. 611971
11
22
33
1, 2, ...
Art.nr. 611971
Art.nr. 611971
Luftningsskruv
16
Luftningsskruv
16
LEKLEK
GRUNDF OS
Type UPS 25- 60 130 P/N:59526447
230V- PC;0017NIB
50Hz
IP 44
TF 110
Class H
Max. 10bar
2.5uF
450.20
650.30
900.40
1m(A) P,(W)
GRUNDFOS
Type UPS 25- 60 130 P/N:59526447
230V- PC;0017NIB
50Hz
IP 44
TF 110
Class H
Max. 10bar
2.5uF
450.20
650.30
900.40
1m(A) P,(W)
Entlüfterschraube
16
LEK
GRUNDFOS
Type UPS 25- 60 130 P/N:59526447
230V- PC;0017NIB
50Hz
IP 44
TF 110
Class H
Max. 10bar
2.5uF
450.20
650.30
900.40
1m(A) P,(W)
Venting screw
16
LEK
GRUNDFOS
Type UPS 25- 60 130 P/N:59526447
230V- PC;0017NIB
50Hz
IP 44
TF 110
Class H
Max. 10bar
2.5uF
450.20
650.30
900.40
1m(A) P,(W)
GB
DE
Error code A - 011
This code is shown when A - 03 and A - 01 are active si-
multaneously.
When the cause of the fault has been rectified, the error
code must be cleared from the display by switching the
heat pump off and on again.
11
22
33
1, 2, ...
Art.nr. 611971
Art.nr. 611971
Venting screw

12 FIGHTER 640P
For the Installer
General information for the installer
General information for the installer
Handling
The heat pump contains highly inflamma-
ble refrigerant. Special care should be exer-
cised during handling, installation, service,
cleaning and scrapping to avoid damage
to the refrigerant system and in doing so
reduce the risk of leakage.
Transport and storage
The heat pump should be transported and stored vertically
in the dry.
Channel description
Use the “Channel selection” button to scroll forward
through the numerical display’s channels to see the re-
quired reading or setting
The significance/function of the different channels is as fol-
lows:
1Boiler temperature
2Flow temperature
3Outdoor temp.
4Evaporation temperature
5Extract air temperature
6Heating curve
7Heating curve offset
8Hot water temperature (at the hot water sensor, the
temperature above the sensor is usually higher)
9Set blocking temperature (outdoor temperature) for
the immersion heater.
10 Calculated flow temperature
Assembly
The heat pump should preferably be erected with its back
about 10 mm from an outside wall in a utility room or
similar, to minimise noise nuisance. If this is not possible,
avoid placing it against a wall behind a bedroom or other
room where noise may be a problem. Wherever the unit
is located, any wall that backs on to a bedroom should be
fitted with sound insulation. Note! The distance between
the heat pump and the wall should be at least 10 mm. If
necessary, for example, with a low ceiling height, it is pos-
sible to position the modules individually.
Route pipes so they are not fixed to an internal wall that
backs on to a bedroom or living room.
FIGHTER 640P has a venting screw located on the front
edge at the top. This should be easily accessible, which
should be considered during installation.
Maximum boiler and radia-
tor volumes
The volume of the expansion vessel
(85) is 12 litres and it is pressurised
as standard to 0.5 bar (5mvp). As
a result, the maximum permitted
height “H” between the vessel and
the highest radiator is 5 metres;
see figure
If the standard initial pressure in
the pressure vessel is not high
enough it can be increased by add-
ing air via the valve in the expan-
sion vessel. The initial pressure
of the expansion vessel must be stated in the inspection
document.
Any change in the initial pressure affects the ability of the
expansion vessel to handle the expansion of the water.
The maximum system volume excluding the boiler is 217
litres at the above initial pressure.
H
Inspection of the installation
Current regulations require the heating installation to be
inspected before it is commissioned. The inspection must
be carried out by a suitably qualified person. The above
applies to installations with a closed expansion vessel. If the
heat pump or the expansion vessel is replaced, the installa-
tion must be inspected again.
Temperatures in FIGHTER 640P
The “Extra hot water” knob (18) on the front panel is used
to increase the hot water capacity.
Temperatur
Utetemperatur
Ber. framledningstemperatur
20
20 Sommar Vinter DUT
DUT: Dimensionerande utetemperatur
60
° C
°C
Vattenvärmartemperatur "Normalfall"
Framledningstemperatur
50
40
30
Vattenvärmartemperatur "Extra varmvatten"
Calculated flow temperature
Outdoor temp.
Summer Winter
DUT: Dimensioned outdoor temperature
DUT
Water heater temperature “Extra hot water”
Water heater temperature “Normal”
Flow temperature
Temperature

13
FIGHTER 640P
For the Installer
General information for the installer
11 Service mode. When the value “00” is shown a return
to channel 1 will occur the next time the button is
pressed. The value can be changed to “01” by press-
ing the Operating mode button. Channel 12 is then
shown the next time the “Channel selection” button
is pressed.
Control reverts to only showing channels 1 to 11 after
approximately 4 hours or by changing the value from
“01” to “00” under channel 11.
12 Deviation between the calculated and true flow
13 Not active. The numerical display shows “-- --”.
14 Selected operating mode using the “Operating mode”
button with the following significance:
01 Circulation pump running (for the heating sys-
tem), immersion heater connection permitted
02 Circulation pump running (for the heating sys-
tem), immersion heater blocked
03 Circulation pump not running (for the heating
system), immersion heater blocked
Pressing the “Operating mode” button when channel 14 is
shown also resets the compressor’s pressure-compensating
time. This should only be carried out by a professional with
expertise within refrigeration. The two hour delay concern-
ing the immersion heater’s third step, which is activated
when the switch is set to 1, is also reset.
15 Shows the connected output step according to the fol-
lowing:
00 Neither compressor nor immersion heater
01, 02: Compressor
03 Compressor plus immersion heater step 1
04 Compressor plus immersion heater step 2
05, 06: Compressor plus immersion heater step 3
Pressing the “Operating mode” button connects the next
higher step irrespective of the control programme’s out-
come.
16 Not active. The numerical display shows “-- --”.
17 The fan runs at the speed set via potentiometers A, B
or C. Selected operating mode with ventilation adjust-
ment, see ”Commissioning and adjusting” – ”Setting
the ventilation”
00 Normal mode, ventilation adjustment not acti-
vated
01 (C) Forced, with closed damper
02 (B) Normal, with closed damper
03 (C) Forced, with open damper
04 (A) Basic, with closed damper
It takes two minutes before the damper
changes position fully and this time must
pass before the airflow reading/ adjustment
is made.
Note!
18 Not active. The numerical display shows “-- --”.
19 Shows the current status with regard to heating/hot
water production according to the following:
01 Heating required, no hot water requirement
02 No heating requirement, hot water required
05 Boiler temperature exceeding the maximum
permitted
06 No heating requirement, hot water not re-
quired
07 No hot water requirement, summer mode (im-
mersion heater and circulation pump blocked
via the operating mode button).
09 Hot water requirement, summer mode (im-
mersion heater and circulation pump blocked
via the operating mode button).
10 Waiting for compressor start for water charg-
ing
11 Periodic heating production in progress
12 Periodic hot water production in progress
20 Shows the boiler temperature at previous reading
(readings are made every fourth minute)
21 Shows the automatic output control’s action during
the previous action regarding connection and discon-
nection of the output step according to channel 15
(actions are taken fourth minute).
00 Neither connection nor disconnection took
place
01 Connection of one output step took place
02 Disengagement of one output step took place
04 Hot water mode
05 Hot water mode in summer mode (immersion
heater and circulation pump blocked via the
operating mode button).
22 Shows the selected ventilation mode (selection made
using the “Ventilation” button) according to the fol-
lowing:
01 Normal ventilation active
02 Forced ventilation active (party mode)
23 Not active. The numerical display shows “00”.
24 Selected number of days in step 1 regarding the dry-
ing process.
25 Selected temperature in step 1 regarding the drying
process
26 Selected number of days in step 2 regarding the dry-
ing process.
27 Selected temperature in step 2 regarding the drying
process

14 FIGHTER 640P
For the Installer
Pipe connections
Pipe connections
General
Pipe installation must be carried out in accordance with
current norms and directives.
The system requires a low-temperature design of the radia-
tor circuit. At DUT, the highest recommended temperatures
are 55 °C on the flow line and 45 °C on the return line.
When the circulation pump is running, the flow in the
radiator circuit must not be completely stopped. In other
words, in a system where the radiator flow might stop
because all thermostat valves are closed, there must be a
bypass valve to protect the circulation pump.
The total volume is 244 litres, with 189 litres in the water
heater and 55 litres in the boiler section.
The pressure vessel in the FIGHTER 640P is approved for
max 9.0 bar (0.9 MPa) in the water heater and 2.5 bar
(0.25 MPa) in the boiler section.
An overflow pipe should be routed from the safety valve to
an appropriate drain. The dimension of the overflow pipe
must be the same as the waste water pipe and be routed
downwards to prevent water pockets and to be frost proof.
Overflow water from the evaporator collection tray and
safety valves goes via non-pressurised collecting pipes to a
drain so that hot water splashes cannot cause injury.
Pump diagram
The pipe work must be flushed before the
heat pump is connected, so that any con-
taminants do not damage the components
parts.
Note!
Pumpdiagram F640P
0
10
20
30
40
50
60
0200 400600 800 1000 1200 1400
Flow l/h
Available pressure kPa
Hot and cold water are connected to pos (74) (hot water)
and (73) (cold water).
The attendant expansion vessel (107) must be connected
to the hot water system.
The heat pump should be supplemented with an electric
water heater if a bubble pool or other significant consumer
of hot water is installed.
If the heater is equipped with a valve connection Ø of
15 mm, this should be replaced with an equivalent (split) Ø
22 mm coupling.
Appropriate heaters are COMPACT 100-300 for floor-
mounting and EMINENT 35-100 for wall-mounting.
1. Split the valve coupling.
2. Attach the valve coupling section to the heater’s incom-
ing cold water.
3. Attach the mixing valve section to the heater’s outgoing
hot water.
4. Plug the split on the valve coupling section.
LK 550/506/513 LK 545/506/513
LK 545/508/518 MMA MMA/LK 518 SYR
LK 506
LK 501
SOLE
LK 545/508/514 LK 545/508/514
utan vakuumventil
LK 550/Cu-rör/506//513 LK 540/512
LEK
LEK
LEK
LEK
LEK
LEK
0,9
MPa
LEK
LEK
LEK
LEK
LK 560/514
ARMATUR
LEK
LEK
LEK
ARMATUR
LEK
ARMATUR
Ventilkoppel-del Blandningsventil-del
Valve coupling section Mixing valve section
KV
VV
VV
INK KV-ANSL
PROPPNING
KV
VV-BEREDARE
MED "DELAT"
VENTILKOPPEL
BACKVENTIL
Kv
Vv från värmepump
Vv
Proppas
Backventil
KV
VV
VV
INK KV-ANSL
PROPPNING
KV
VV-BEREDARE
MED "DELAT"
VENTILKOPPEL
BACKVENTIL
Ventilkoppel-del
Blandningsventil-del
Kv
Vv från värmepump
Vv
Backventil
Blandningsventil
ENDAST FÖR
DANMARK
Valve coupling section
Plugged
Non-return valve
Hw from heat pump
Cw
Hw
Mixing valve section
Tap water connection

15
FIGHTER 640P
For the Installer
Ventilation connection
Installation method
Va rme frem
Va rme retur
By-passventil
Va rme frem
Va rme retur
By-passventil
Va rme frem
Va rme retur
By-passventil
Radiator Radiator
Gulvvarme*
Gulvvarme*
Radiator Radiator
M
Heizungs-Vorlauf
Heizungs-Rücklauf
≥Überströmventil
Radiator Radiator
Fußbodenheizung*
Radiator Radiator
M
DANSKA TYSKA
Heizungs-Vorlauf
Heizungs-Rücklauf
≥Überströmventil
Heizungs-Vorlauf
Heizungs-Rücklauf
≥Überströmventil
Fußbodenheizung*
Framledning
Returledning
Bypassventil
Radiator Radiator
Golvvärme*
Radiator Radiator
M
SVENSKA
Framledning
Returledning
Bypassventil
Golvvärme*
Framledning
Returledning
Bypassventil
Supply
Return
Bypass valve
Radiator Radiator
Floor heating*
Radiator Radiator
M
ENGELSKA
Supply
Return
Bypass valve
Floor heating*
Supply
Return
Bypass valve
Control valve with motor
* Including any distribution arma-
tures
Wooden floors with floor heating
should be protected from a too high
temperature, according to the floor
supplier’s instructions
The bypass valve must
be positioned as far
away from the heat
pump as possible.
The bypass valve must
be positioned as far
away from the heat
pump as possible.
The bypass valve
must be positioned
as far away from the
heat pump as pos-
sible.
Flow line
Flow line
Bypass valve
Bypass valve
Return line
Return line
Floor heating*
Floor heating*
Flow line
Return line
Bypass valve

16 FIGHTER 640P
For the Installer
A duct in a masonry chimney stack must
not be used for extract air.
Note!
General
FIGHTER 640P works in average size houses, with both
exhaust air and outdoor air. This gives greater savings than
by using just exhaust air. However, at outdoor tempera-
tures below approximately - 5 °C, the outdoor air flow is
closed by means of an internal damper and the heat pump
now works with just the exhaust air. In larger houses only
the exhaust air ducts are connected as the exhaust air here
contains sufficient amounts of energy.
Ventilation flow
FIGHTER 640P is connected so that all ventilation air ex-
cept the kitchen fan passes the evaporator (62) in the heat
pump. The lowest ventilation flow according to current
standards is 0.35 l/s per m2floor area. For optimum heat
pump performance this ventilation flow should not be
less than 120 m3/h (34 l/s). With exhaust air flow greater
than 250 m3/h the outdoor air duct is not connected.
Accordingly FIGHTER 640P is only used as an exhaust air
heat pump.
In those cases the exhaust air flow falls below 250 m3/h an
outdoor air duct with adjustment damper should be con-
nected to the heat pump. The heat pump then normally
works with the fan at maximum, when the compressor is
running. The maximum capacity of the fan is then distribut-
ed between the planned exhaust air and outdoor air. With
outdoor temperatures lower than approximately - 5 °C the
fan automatically slows down to the selected setting and
the heat pump’s internal damper shuts out the outdoor air,
whereby the planned exhaust air flow is maintained.
The heat pump’s installation area should be ventilated by at
least 36 m3/h (10 l/s).
FIGHTER 640P is equipped with a ventilation opening in
the base. As a result, an air flow of about 5 m3h (1,4 l/s) is
taken directly from the room.
Setting the ventilation capacity is described in
“Commissioning and adjusting” – ”Setting the ventila-
tion”. See also the Circuit diagram.
Ventilation connection
Duct installation
To prevent fan noise being transferred to the exhaust air
devices, it may be a good idea to install a silencer in the
duct. This is especially important if there are exhaust air
devices in bedrooms. If a twin duct system is used for the
exhaust air, each system should be fitted with a silencer.
Because the heat pump contains a flammable refrigerant
in the form of propane (R290), the air ducting system must
be earthed. This is done by making a sound electrical con-
nection to the exhaust air, extract air and outdoor air ducts
using the three earthing cables supplied. The cables must
then be connected to the earthing studs on top of the top
cover.
Duct connections should be made via flexible hoses, which
must be installed so that they are easy to replace. The
extract air and outdoor air ducts are to be insulated using
diffusion-proof material along their entire lengths. Provision
must be made for inspection of the duct. The outdoor air
duct should be fitted with an adjustment damper. Make
sure that there are no reductions of cross-sectional area in
the form of creases, tight bends etc, since this will reduce
the ventilation capacity. All joins in the ducting must be
sealed and pop-riveted to prevent leakage.
When the exhaust air flow is so great that no outdoor air
duct is fitted and the ventilation system is connected only
to the exhaust air sleeve the outdoor air sleeve should be
sealed. If the ventilation system is connected to both the
exhaust air sleeve and the ordinary outdoor air sleeve the
damper motor should be electrically disconnected. This is
done by removing the damper motor’s cable ends on the
relay card (terminals 36, 37 and 38) from the relay card
and then insulated. The damper can now be turned to the
open position by hand when the damper motor’s knob is
pressed in.
The air duct system should, at a minimum, be of air tight-
ness class B.

17
FIGHTER 640P
For the Installer
Ventilation connection
Fan diagram
The diagram below shows the available ventilation capacity
as well as the supplied fan output. The numbering of the
curves refers to the graduation of the potentiometers.
Luftkapacitet på Prototyp F640P (extra tätningslist under luckan)
0
50
100
150
200
250
300
350
400
450
500
550
20
40
60
80
100
120
140
160
180
200
220
050 100 150 200 250 300 350 400
J
J
I
H
F
G
E
D
J
I
H
F
G
E
D
m3/h
l/s
0
50
100
150
200
250
300
350
400
450
20
40
60
80
100
120
140
160
180
050 100 150 200 250 300 350 400 450
E
E
F
F
G
G
H
H
I
I
J
J
J
Fläktdiagram utan effekt. Används i svenskt F640P produktblad.
0
50
100
150
200
250
300
350
400
450
050 100 150 200 250 300 350 400 450
E
F
G
H
I
J
J
0255075 100
Airflow (m3/h)
Available pressure, Pa
Air intake only through the exhaust air sleeve
Air intake through both the exhaust air and
extract air sleeves
Supplied fan output.
Fan output, W
Example, reading off the fan output
Requirements: Airflow 200 m3/h. Required pressure in-
crease (=pressure drop in duct system) 270 Pa.
To select curve:
Read off the cutting point between the desired airflow•
and required pressure increase.
Select the closest solid lined curve (in this case curve•
H).
To read off the fan output:
Look at the dotted line for the selected curve (in this•
case curve H), and read off the fan output on the
right-hand axis. In this instance, the fan output is 70
W at an airflow of 200 m3/h.
Exhaust air duct
The kitchen flue must not be connected to FIGHTER 640P.
Adjustment
See the section “Setting the ventilation”.

18 FIGHTER 640P
For the Installer
Connection
All electrical equipment except for the outdoor sensor has
been connected at the factory.
Disconnect the heat pump before insulation testing the
house wiring.
The supply to the heat pump is connected to terminal (9)
via a strain relief. FIGHTER 640P does not include an isola-
tor switch on the incoming electrical supply. The installa-
tion must be preceded by a circuit-breaker with at least a 3
mm breaking gap according to applicable norms.
Connection must not be carried out without the permis-
sion of the electricity supplier and under the supervision
of a qualified electrician. The cable entry conduit is dimen-
sioned for cable with a max Ø 19 mm.
The power is controlled via a contactor which is operated
by a microprocessor.
The temperature limiter (6) cuts off the supply to the im-
mersion heater if the temperature rises to between 90 and
100°C; it can be manually reset by pressing the button on
the temperature limiter.
The automatic heating control system, circulation pump
(16), compressor and its cabling, are internally fuse protect-
ed with a miniature circuit breaker (7).
Max phase current
Output
(kW)
Max load phase
(A)
Circuit fuse (A)
6,0 13,0 16
8,0 15,1 16
9,0 19,4 20
Immersion heater
The immersion heater of 9 kW is fitted in the boiler sec-
tion, and on delivery is connected for an output of 8.0 kW.
Changing the output
Ensure that the heat pump is disconnected from the•
power source.
Open the protective cover on the distribution box (see•
section “Service”- “Opening the cover on the distribu-
tion box”).
Changing-over to 6 kW
Disconnect brown cable 045 from the relay card (29)•
terminal ”22” and insulate.
Changing-over to 9 kW
Connect white cable 019 to contactor (10) terminal•
”2”.
The switch (8) must not be moved from “0”
until the boiler has been filled. Otherwise
the temperature limiter, thermostat, com-
pressor and the immersion heater can be
damaged.
Note!
Electrical connections
Resetting the temperature limiter
The temperature limiter (6) is accessible behind the upper
service cover, see the figure.
The temperature limiter is reset by firmly pressing in the
rubber membrane.
Reset the temperature limiter, it may have
tripped during transport.
Note!
Electrical connections
Utan elpatron
29 910