Nibe FIGHTER 1120 User manual

LEK
INSTALLATION AND MAINTENANCE INSTRUCTIONS
FIGHTER 1120
230 V, 3 X 230 V, 3 X 400 V
MOS GB 0642-2
FIGHTER 1120
031053

LEK LEK
LEK LEK
LEK
LEK
LEK LEK

Contents 1
FIGHTER 1120
General
Concise product description ................................ 2
Setting table ........................................................ 2
System description
Principle of operation .......................................... 3
Front panel
Layout .................................................................. 4
Explanation .......................................................... 4
Settings
General ................................................................ 6
Default setting ...................................................... 6
Changing the room temperature .......................... 6
Basic values for the automatic heating control .... 7
Setting using diagrams .............................................. 8
Heating curve offset -2 .............................................. 8
Heating curve offset 0 ................................................ 8
Heating curve offset +2 .............................................. 8
Heat production .................................................... 9
Hot water production ............................................ 9
Additional heat only (electric boiler mode) ............ 9
Brine pump .......................................................... 9
Fixed condensing ................................................ 9
Standby mode “ ” ............................................ 9
General points for the installation engineer
Transport and storage ................................................ 10
Installation .................................................................. 10
Floating condensing .................................................. 10
Fixed condensing ...................................................... 10
Guideline values for collectors .................................. 10
Inspection of the installation ...................................... 10
Pipe connections
General ...................................................................... 11
Heating medium pump .............................................. 11
Pipe connections (collector) ...................................... 11
Pipe connections (heating medium) .......................... 11
Ventilation recovery .................................................... 11
Free cooling ................................................................ 11
Pump capacity diagrams, heating medium side ........ 12
Pump capacity diagrams, collector side .................... 13
Electrical connection
Connection ................................................................ 14
Connection on delivery 230 V -5 ................................ 15
Connection on delivery 230 V -8, -12 ........................ 15
Connection on delivery 3 x 230 V .............................. 16
Connection on delivery 3 x 400 V .............................. 17
Tariff connection 3 x 400 V ........................................ 17
Outside temperature sensor ...................................... 18
Temperature sensor for hot tap water ...................... 18
Temperature sensor with fixed condensing .............. 18
External compensation .............................................. 18
Max hot water temperature ........................................ 19
Max. electrical addition .............................................. 19
Max phase current including electrical addition,
binary 3 steps .......................................................... 19
Centralised load control and load monitor ................ 20
External contacts ........................................................ 21
Alarm/alarm outputs .................................................. 22
Soft-start relay ............................................................ 22
Docking
General ...................................................................... 23
Abbreviations .............................................................. 23
Option 1 immersion heater and water heater .......... 25
Option 2 gas boiler .................................................... 26
Option 3 oil-fired boiler .............................................. 28
Option 4 another heat source .................................. 30
Commissioning and adjusting
Preparations .............................................................. 32
Filling and venting the collector system .................... 32
Filling the heating medium system ............................ 32
Internal air vent valve, brine ...................................... 32
Starting and checking ................................................ 33
Rotation check ............................................................34
Readjusting, heating medium side ............................ 35
Readjusting, collector side ........................................ 35
Control
General........................................................................ 36
Key lock ...................................................................... 36
Quick movement ........................................................ 36
Changing parameters ................................................ 37
Menu tree .................................................................... 38
Main menus ................................................................ 42
Hot water temperature ................................................ 43
Flow temperature ........................................................ 44
Flow temperature system 2 ........................................ 46
Outdoor temperature .................................................. 48
Brine in/out temperature ............................................ 48
Room temperature/Settings ...................................... 49
Clock .......................................................................... 49
Other settings ............................................................ 51
Service menus
Settings additional heat .............................................. 53
Operating settings ...................................................... 53
Quick start .................................................................. 56
TEST Force driven operation...................................... 56
Alarm log .................................................................... 57
Dealing with malfunctions
Alarm indications on the display .............................. 58
Low room temperature.............................................. 61
High room temperature ............................................ 61
Low hot water temperature or no hot water ............ 61
Draining, heat medium side .................................... 62
Draining, collector side .............................................. 62
Helping the circulation pump to start ........................ 62
Component positions
Component positions 230 V -5 .................................. 63
Component positions 230 V -8, -12............................ 63
Component positions 3 x 230 V ................................ 64
Component positions 3 x 400 V ................................ 64
Component positions ................................................ 65
List of components
List of components .................................................... 66
Dimensions
Dimensions and setting-out coordinates .................. 65
Enclosed kit
Enclosed kit ................................................................ 68
Accessories
Accessories ................................................................ 69
Technical specifications
Technical specifications 230 V .................................. 70
Technical specifications 3 x 230 V ............................ 71
Technical specifications 3 x 400 V ............................ 72

General
FIGHTER 1120
2
In order to get the ultimate benefit from your heat pump
FIGHTER 1120 you should read through this Installation
and Maintenance Instruction.
FIGHTER 1120 is a base heat pump for heating small
houses, apartment blocks and industrial premises. Soil,
rock or lakes can be used as the heat source.
FIGHTER 1120 is a Swedish made quality product offer-
ing a long life span and safe operation.
Installation date
Accessories:
Electrical addition ............ ■■
Hot water control ............ ■■
Room control .................. ■■
Other .............................. ■■
The serial number (95), should always be stated with all
correspondence with NIBE.
______________
FIGHTER 1120- __
Installation engineers
Completed by the installation engineer when the heat pump
is installed
The type of brine - Mixing proportion/freezing point
Active drilling depth/collector length
Commissioning checks
Brine temperature (in/out)____ / ____ Pump setting ___
(Nominal temperature diff 2 - 5 °C)
Temperature heat medium (supply/return)____ / ____ Pump setting ___
(Nominal temperature diff 5 - 10 °C)
Settings
* Accessories
Date ________ Signed ____________________________
Menu Factory
setting
1.4 Start time.HW* ............ 47
1.5 Stop temp.HW* ............ 54
1.6
Stop Temp. XHW* ............ 60
1.8
Interval XHW* .............. 14
2.1 Curve coefficient .......... 9
2.2 Heating curve offset. .... 0
2.3
Flow temp./MIN .............. 15
2.4
Flow temp./MAX .............. 55
2.7
Return temp./MAX .......... 53
Position Factory
setting
100
“Fuse” .............. 20
101
“Max electrical output” ...... C
102
“Max boiler temp” ............ 65

FIGHTER 1120 consists of a heat pump, circulation
pumps and a control system for the heat pump and
any additional heat (an immersion heater is not includ-
ed in the basic design).
FIGHTER 1120 has built-in circulation pumps, making
it easy to connect to the heating medium and collector
circuits.
The absorption of heat from the heat source (rock,
ground or lake) is through a closed collector system
containing water mixed with antifreeze.
Ground water can also be used as a heat source. This
requires an intermediate heat exchanger.
The brine emits its heat to the refrigerant in the heat
pump's evaporator. It then vaporises and is com-
pressed in the compressor. The refrigerant, with its
increased temperature, is led into the where it emits
its energy to the heat medium circuit.
System description 3
FIGHTER 1120
Principle of operation
Brine out
Compressor
Horizontal loop collector Vertical loop collector
Heating water pump
Condenser
Expansion valve
Brine in
Evaporator
Brine pump
Heating water flow
Heating water return
The installation must be fitted
with the necessary safety
equipment in accordance with
the applicable regulations.

Front panel4
A BI II III I II
50.0 C
Hotwatertemperature
13.43
1.0
A
Display
Switch
Left
keypad
Heating
curve offset
Layout
A
B
C
D
Right
keypad
E
Explanation
Switch
with three positions 1 - 0 - :
1Normal mode. All control functions connect-
ed.
0 The boilers is completely switched off.
Standby Only the circulation pump and pos-
sibly the electrical addition. Not connected
at the factory
The switch must not be turned to “1” or “ ”
before filling the boiler with water.
A
Display First row:
Compressor symbol
Indicates when the compressor is opera-
tional.
Addition symbol
Indicates when the immersion heater is
connected. The line indicates which power
step/steps are currently connected.
IStep 1 is connected.
II Step 2 is connected.
III Step 3 is connected.
I II Steps 1+2 are connected.
II III Steps 2+3 are connected.
I III Steps 1+3 are connected.
I II III Steps 1+2+3 are connected.
B
I II III
A
Hot water symbol.
Tap is shown when the heat pump charges
the hot water.
Ais shown when a temperature increase is
in progress.
Bis shown when a time based temperature
increase is in progress, for example, peri-
odic.
Circulation pump symbol.
IShown when the circulation pump is
operational.
II Shown when circulation pump 2 is oper-
ational (the accessory ESV 20 is required).
Heating system symbols
Shown when house heating is in progress.
A B
I II
FIGHTER 1120

Front panel 5
FIGHTER 1120
Left keypad
C
Operating mode
This button is used to set the required op-
erating mode with regard to permitting/
blocking the circulation pump and addi-
tional energy. The change does not need
to be confirmed with the enter button.
The different operating modes are:
Auto mode:
FIGHTER 1120 automatically selects the operating
mode by taking the outdoor temperature into account.
The circulation pump and the immersion heater are
permitted to run as needed.
Summer mode:
Only production of hot water using FIGHTER 1120.
The circulation pump and immersion heater are
blocked. However, when “Extra hot water” is activated
the immersion heater is connected.
Spring/Autumn mode:
Production of heating and hot water using FIGHTER
1120. The circulation pump is operational. The immer-
sion heater is disabled. However, when “Extra hot
water” is activated the immersion heater is connected.
The current operating mode is shown on the display
when the button is pressed and the mode changes
when you continue to press the button. The display
returns to the normal display mode once the enter but-
ton is pressed.
In alarm mode the operating mode changes to winter
mode and additional heat engages.
Display (continued)
Second row: Value of the current parameter.
Third row: Description of current display para-
meter. “Hot water temp” is normal-
ly shown.
Fourth row: Shows menu numbers, key lock,
clock symbol and time
B
A key lock can be activated in the main
menus by simultaneously pressing the
plus and the minus buttons. The key
symbol will then be shown on the dis-
play. The same procedure is used to
deactivate the key lock.
The symbol becomes visible when a
timer function is selected, for example,
periodic lowering of the supply or time
setting for extra hot water.
Right keypad
Heating curve offset
D
E
Extra hot water (accessory)
The “Extra hot water” function is activat-
ed using this button. The change does
not need to be confirmed with the enter
button.
A: Means that the hot water temperature is increased
to 60 °C (adjustable). The temperature then returns to
the normal value.
When Acomes on the function is activated.
When Agoes out the function is deactivated.
Press once to give extra hot water for 3 hours.
Press twice to give extra hot water for 6 hours.
Press three times to give extra hot water for 12 hours.
Press four times to give extra hot water for 24 hours.
Press five times to deactivate the function.
Plus button
This button is used to scroll through the
menu system (forwards) or increase
the value of the selected parameter.
See the section “Control - General”.
Minus button
This button is used to scroll through the
menu system (backwards) or lower
the value of the selected parameter.
See the section “Control - General”.
Enter button
This button is used to select a lower
menu in the menu system, to activate a
parameter change as well as confirm a
parameter change.
See the section “Control - General”.
This knob is used to change the heating
curve's parallel offset and in doing so
the room temperature. Turning clock-
wise increases the room temperature.
When the knob is turned menu 2.0 is
shown on the display and the value for
the calculated flow temperature
changes.
No function.

Settings
FIGHTER 1120
6
General
The indoor temperature depends on several factors.
Sunlight and heat emissions from people and house-
hold machines are normally sufficient to keep the
house warm during the warmer parts of the year.
When it gets colder outside, the heating system must
be started. The colder it is outside, the warmer radia-
tors and floor heating system must be.
The heat pump is controlled by built-in sensors for
flow and return brine temperatures (collector). Brine
return temperatures can, if so required, be limited to a
minimum (e.g. for ground water systems).
Heat production is usually controlled on the “floating
condensing” principle. This means that the tempera-
ture level needed for heating at a given outside tem-
perature is produced on the basis of values taken from
sensors for outside temperature and flow temperature
(see docking options 1 - 3). This adjustment is made
automatically, however the basic settings must first be
made on the boiler, see the section “Settings” -
“Default setting”.
Room sensors can also be used as an option to com-
pensate for variations in room temperature, see menu
6.1 “Room compensation”.
The basic heating is set using menu 2.1 and with the
“Heating curve offset” knob.
If the required room temperature is not obtained, read-
justment may be necessary.
NOTE! Wait one day between settings so that the tem-
peratures have time to stabilise.
Readjustment of basic settings.
Cold weather conditions
When the room temperature is too low, the “Heating
curve” value is increased in menu 2.1 by one incre-
ment.
When the room temperature is too high, the “Heat-
ing curve” value is decreased in menu 2.1 by one
increment.
Warm weather conditions
If the room temperature is low, increase the “Heat-
ing curve offset” setting by one step.
If the room temperature is high, reduce the “Heating
curve offset” setting by one step.
Default setting
Heating
curve offset
Menu 2.1 Curve coefficient
9
Curve coefficient
2.1

Settings 7
FIGHTER 1120
Changing the room temperature manually.
If you want to temporarily or permanently lower or
raise the indoor temperature relative to the previously
set temperature, turn the
“Heating curve offset” knob
anticlockwise or clockwise. One scale marking corre-
sponds to a change of about one degree in the room
temperature.
NOTE! An increase in the room temperature may be
“inhibited” by the radiator or floor heating thermostats,
if so these must be turned up.
Changing the room
temperature
A BI II III I II
50.0 C
Hotwatertemperature
13.43
1.0
A
Heating
curve offset

Settings8
FIGHTER 1120
The heating control system on the FIGHTER 1120 is
controlled by the outside temperature. This means the
flow temperature is regulated in relation to the current
outdoor temperature.
The relationship between the outside temperature and
the flow temperature is set using the control system,
also see section “Heating control system - Basic set-
ting”.
The diagram is based on the dimensioned outdoor
temperature in the area and the dimensioned supply
temperature of the heating system. When these two
values “meet”, the heating control's curve slope can
be read. This is set on menu 2.1 “Curve coefficient”.
Heating curve offset 0
Heating curve offset -2
Setting using diagrams
Heating curve offset +2
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
VÄRMEKURVA
- 5
+ 5
FÖRSKJUTNING
VÄRMEKURVA (0)
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
A BI II III I II
50.0 C
Hotwatertemperature
13.43
1.0
A
Heating
curve offset
Menu 2.1 Curve coefficient
9
Curve coefficient
2.1
The “Heating curve offset” knob is then set. A suitable
value for floor heating is -1 and for radiator systems
-2.
HEATING CURVE
HEATING CURVE
OFFSET
SUPPLY TEMPERATURE
OUTSIDE TEMPERATURE
HEATING CURVE
HEATING CURVE
OFFSET
SUPPLY TEMPERATURE
OUTSIDE TEMPERATURE
HEATING CURVE
HEATING CURVE
OFFSET
SUPPLY TEMPERATURE
OUTSIDE TEMPERATURE

Settings 9
FIGHTER 1120
If the FIGHTER 1120 is fitted with the accessory ETS
12 / ETS 121 the unit can be used solely as additional
heat (electric boiler) to produce heat and hot water.
This is especially useful, for example, before the col-
lector installation is finished.
Changing the “Electric boiler” is done in menu 9.2.4.
NOTE! Select “Off” to deactivate only additional
heat and select the required operating mode using
the operating mode button.
The brine pump normally follows the operation of the
heat pump. There is a special operating mode for con-
tinuous operation for 10 days, followed by return to
normal mode (used before stable circulation has been
established).
The setting is made on menu 9.2.12 “Brinepump 10
days”.
If required FIGHTER 1120 can be docked to an exter-
nal unit with its own heating controls. FIGHTER 1120
then delivers heat up to a fixed temperature level. This
is known as “fixed condensing”. To regulate the
room temperature, see the instructions for the external
units.
Not connected from the factory, requires the accesso-
ry ETS 12 / ETS 121.
FIGHTER 1120 can be complemented with “Domestic
hot water operation” and, for example, our VPA hot
water accumulator to produce domestic hot water.
The supply of heat to the building is controlled by the
control system settings (curve slope and offset). After
adjustment the correct amount of heat for the current
outdoor temperature is supplied. The flow line temper-
ature of the heat pump (heating medium flow) will hunt
around the theoretically required value (the value in
brackets on the display). For subnormal temperatures
the control system calculates a heating deficit in the
form of “degree-minutes”, which means that heating
production is accelerated. The larger the subnormal
temperature, the greater the heat production.
The heat pump's control system can control an immer-
sion heater in a maximum of seven output steps if fit-
ted, or an external oil-fired boiler and shunt valve.
Heat production Hot water production
Additional heat only (electric
boiler mode)
Brine pump
Fixed condensing
Standby mode

General information for the installer10
FIGHTER 1120
Current regulations require the heating installation to
be inspected before it is commissioned. The inspec-
tion must be carried out by a suitably qualified person
and should be documented. The above applies to
closed heating systems. If the heat pump is replaced,
the installation must be inspected again.
FIGHTER 1120 is placed on a firm base, preferably a
concrete floor or foundation. FIGHTER 1120 should
be setup with its rear against an outer wall in a
scullery or similar type of room to eliminate noise
problems. 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. Route pipes so they are not
fixed to an internal wall that backs on to a bedroom or
living room.
The FIGHTER 1120 must be transported and stored
upright and dry.
Transport and storage
Installation
Guideline values for collectors
Inspection of the installation
For use with 40 x 2.4 PN 6.3 PEM hose.
The length of the collector hose varies depending
on the rock /soil conditions and on the heating sys-
tem, i.e. radiators or floor heating.
Max length per collector should not exceed 400 m.
Where there is more than one collector, they must be
connected in parallel, with a means of adjusting the
flow.
The hose should be buried at a depth of about
1 metre and the distance between the hoses should
be at least 1 metres for surface soil heat.
For several bore holes, the distance between the
holes must be at least 15m.
If required FIGHTER 1120 can be docked to an exter-
nal unit with its own heating controls. FIGHTER 1120
then delivers heat up to a fixed temperature level. This
is called “fixed condensing”. See docking option 4. To
set the correct parameters for fixed condensing see
“Docking - option 4”. The heat medium pump does not
need to be changed.
See the instructions for the external units for how to
regulate the room temperature.
The outside temperature sensor has no function with
this option, but it should be connected to prevent error
messages appearing on the display. There is no need
to install the sensor outside.
Heat production is usually controlled on the “floating
condensing” principle. This means that the tempera-
ture level needed for heating at a given outside tem-
perature is produced on the basis of values taken from
sensors for outside temperature and flow temperature
(see docking options 1 - 3).
Fixed condensing
Floating condensing
NOTE!
Enter the selected values on page 2
in this Installation instruction. The
details are important for
service work.
+2
0
-2
1
R
0
HMflow 49(50)°C
Hotwater
51°C
+2
0
-2
1
R
0
HMflow
49(50)°C
Hotwater
51°C
Type Soil heat Rock heat,
recommended recommended
collector length active drilling depth
6 250 - 400 m 90 - 110 m
10 400 - 2 x 300 m 140 - 170 m
15 2 x 300 - 2 x 400 m 2 x 100 - 2 x 120 m
8 325 - 2 x 250 m 120 - 140 m
17 2 x 350 - 3 x 300 m 2 x 110 - 2 x 140 m
12 2 x 250 - 2 x 350 m 160 - 190 m
5 200 - 300 m 70 - 90 m

When dimensioning the collector, consideration must
be given to the geographical location, type of rock and
ground and the degree of coverage provided by the
heat pump.
When installing the collector hose ensure it rises con-
stantly towards the heat pump to avoid air pockets. If
this is not possible, install high points to vent the air.
All brine pipes in heated rooms must be insulated
against condensation. The level vessel (NK) must be
installed as the highest point in the collector system and
on the incoming pipe before the brine pump. Note that
condensation may drip from the level vessel. Position
the vessel so that this does not harm other equipment.
As the temperature of the collector system can fall
below 0 °C it must be protected against freezing down
to -15 °C. One litre of ready mixed brine per meter of
collector hose (applies when using PEM-hose 40 x 2.4
PN 6.3) is used as a guide value when making the vol-
ume calculation.
The level vessel must be marked to show the type of
antifreeze used.
Shut-off valves should be installed as close to the heat
pump as possible. Fit a particle filter to the incoming pipe.
In the case of connection to an open groundwater sys-
tem, an intermediate frost-protected circuit must be
provided, because of the risk of dirt and freezing in the
evaporator. This requires an extra heat exchanger.
Pipe connections 11
FIGHTER 1120
Pipe installation must be carried out in accordance
with current norms and directives. FIGHTER 1120 can
operate up to a return temperature of about 58* °C
and an outgoing temperature from the heat pump of
about 70* °C. The compressor produces up to 65* °C,
the rest is obtained using additional heating.
* Applies to 5 kW 1-phase, 6 kW 3-phase 3 x 400 V, 8
kW 3-phase 3 x 400 V and 10 kW 3-phase 3 x 400 V.
The other heat pumps has a max return temperature
of approximately 50 °C and an outgoing max tempera-
ture from the heat pump of approximately 60 °C.
Since FIGHTER 1120 is not fitted with shut-off valves,
these must be fitted outside of the heat pump to facili-
tate servicing.
General
Pipe connections (collector)
The heating medium pump (VBP) runs at the same
time as the brine pump (KBP) with fixed condensing
(docking option 4) in auto mode.
Heating medium pump
NOTE!
The pipe system needs to be flushed
out before the heat pump is connected
so that debris cannot damage
component parts.
Pipe connections for the heat medium side are made
at the top. All required safety devices, shut-off valves
(as close to the heat pump as possible), and particle
filter (supplied) are fitted.
You should fit either an overflow valve or remove
some of the thermostats when connecting to systems
with thermostats on all the radiators (coils).
Pipe connections
(heating medium)
FIGHTER 1120
SF
Köldbin
Köldbut
SÄV
FLM 30
EXP
BV
RV P
ABIIIIII IIIIII
50.0 C
Varmvattentemp.1.0
AB AB
The equipment can be supplemented with a fan coil
unit to make the connection of free cooling possible.To
avoid condensation, all pipes and other cold surfaces
must be isolated with diffusion-proof material.Where
the cooling demand is high, fan convectors with drip
trays and drain connection are needed. The collector
circuit should be fitted with a pressure expansion ves-
sel . If there is a level vessel, this should be replaced.
Free cooling
P
ABIIIIII III I II
50.0 C
Varmvattentemp.1.0
AB AB
Fläktkonvektor
Köldb inKöldb ut
Brine in
Brine out
Brine in
Brine out
Fan convectors
The installation can be supplemented with the exhaust
air module FLM to provide ventilation recovery. To
avoid condensation, all pipes and other cold surfaces
must be isolated with diffusion-proof material. The col-
lector circuit should be fitted with a pressure expan-
sion vessel
. If there is a level vessel, this should be
replaced.
Ventilation recovery
Extract air
Ø 160
Exhaust air
Ø 160

0,2 0,4 0,6 0,81,0 1,20
Flöde
l/s
0
10
20
30
40
50
60
70
80
90
123
kPa
Tillgängligt tryck
0,2 0,4 0,6 0,81,0 1,20
Flöde
l/s
0
10
20
30
40
50
60
70
80
90
123
kPa
Tillgängligt tryck
Pipe connections
FIGHTER 1120
12
Pump capacity diagrams, heating medium side
LEK
GRUNDFOS
TypeUPS25-60130P/N:59526447
230V-
HEJSAN
PC;0017NIB
DK
50Hz
IP44
TF110
ClassH
Max.10bar
2.5uF
45
0.20
65
0.30
90
0.40
1m(A)P
,(W)
The pump is
adjustable to adjust
the flow: 1, 2, or 3 .
kPa
0
20
80
40
Tillgängligt tryck
Flöde
60
kPa
0
20
80
40
Tillgängligt tryck
Flöde
60
kPa
0
20
80
40
Tillgängligt tryck
Flöde
60
kPa
0
20
80
40
Tillgängligt tryck
Flöde
60
FIGHTER 1115 4
FIGHTER 1115 7 FIGHTER 1115 8,5
FIGHTER 1115 5
0 0,07 0,130,21 l/s
0,27 0,35 0,42 0,480,690,620,55
0 0,07 0,130,21 l/s
0,27 0,35 0,42 0,480,690,620,55
0 0,07 0,130,21 l/s
0,27 0,35 0,42 0,480,690,620,55
0 0,07 0,130,21 l/s
0,27 0,35 0,42 0,480,690,620,55
1 2 3 1 2 3
1 2 3 1 2 3
FIGHTER 1120 12
FIGHTER 1120 6
FIGHTER 1120 5
FIGHTER 1120 8 FIGHTER 1120 10
FIGHTER 1120 15/17
Available
pressure
Available
pressure
Available
pressure
Available
pressure
Available
pressure
Flow Flow
Flow
Available
pressure
Flow
Flow Flow

Flöde
00,1 0,2 0,3l/s
0,4 0,5 0,6 0,7 10,90,8
kPa
30
40
110
70
Tillgängligt tryck
90
50
60
80
100
1
2
34
Pipe connections 13
FIGHTER 1120
Pump capacity diagrams, collector side
FIGHTER 1215 7
kPa
0
10
80
40
Tillgängligt tryck
Flöde
60
0 0,1 0,2 0,3l/s
0,4 0,5 0,6 0,7 10,90,8
1 2 3
20
30
50
70
FIGHTER 1215 4
kPa
0
10
80
40
Tillgängligt tryck
Flöde
60
0 0,1 0,2 0,3l/s
0,4 0,5 0,6 0,7 10,90,8
1 2 3
20
30
50
70
FIGHTER 1215 8,5
kPa
0
10
80
40
Tillgängligt tryck
Flöde
60
0 0,1 0,2 0,3l/s
0,4 0,5 0,6 0,7 10,90,8
1 2 3
20
30
50
70
FIGHTER 1120 6
FIGHTER 1120 5
FIGHTER 1120 8
FIGHTER 1130/1230 10
kPa
0
10
80
40
Tillgängligt tryck
Flöde
60
0 0,1 0,2 0,3l/s
0,4 0,5 0,6 0,7 10,90,8
1 2 3
20
30
50
70
FIGHTER 1120 10
FIGHTER 1120 12/15/17
LEK
GRUNDFOS
TypeUPS25-60130P/N:59526447
230V-
HEJSAN
PC;0017NIB
DK
50Hz
IP44
TF110
ClassH
Max.10bar
2.5uF
45
0.20
65
0.30
90
0.40
1m(A)P
,(W)
The pump is adjust-
able to adjust the
flow: 1, 2, or 3 (4).
Available
pressure
Available
pressure
Available
pressure
Available
pressure
Available
pressure
Flow
Flow
Flow
Flow
Flow

NOTE!
Electrical installation and service
must be carried out under the
supervision of a qualified electrician.
Electrical installation and wiring must
be carried out in accordance with the
stipulations in force.
Electrical connection14
FIGHTER 1120
Cable glands for
the supply.
Cable glands for
sensors.
FIGHTER 1120 must not be connected without the
permission of the electricity supplier and must be con-
nected under the supervision of a qualified electrician.
FIGHTER 1120 must be installed via an isolator
switch with a minimum breaking gap of 3 mm. Other
electrical equipment, except the outdoor temperature
sensor and the current transformers are ready con-
nected at the factory.
Disconnect the heat pump before insulation testing
the house wiring.
The heat pump is not reconnectable between 1-phase
and 3-phase; neither can it be reconnected between 3
x 230 V and 3 x 400 V.
If a miniature circuit breaker is used this should have
motor characteristic “D” (compressor operation). For
fuse ratings, see technical data, “Fuse” protection.
When the building is equipped with an earth-fault
breaker the heat pump should be equipped with a
separate one.
Check that motor protection (26) is set to “auto-mode”
and that the operating current has been set correctly,
see technical specifications, “Max. operating current,
compressor”.
The automatic heating control system, circulation
pumps and their wiring, are internally fuse protected
with a miniature circuit breaker (1).
Connection
-X9
26

Electrical connection 15
FIGHTER 1120
L
NPE
L
L
N
N
PE
PE
Connection on delivery 230 V -5
-X9
230 V: The heat pump is connected on terminal block
-X9 to 230 V + PE via the junction box with fuses.
When a separate supply to the compressor and immer-
sion heater is required, to give them separate tariff con-
trol, the following should be done:
■Remove the cable (the dotted line) between the
terminal block -X9 and the compressor contactor
(69). Connect the supply directly to the contactor
according to the picture.
Tariff connection 230 V -5
69 compressor immersion
heater
-X9

Electrical connection
FIGHTER 1120
16
PE
L1L2L3
Connection on delivery 3 x 230 V (only applies to Norway)
-X9
3 x 230 V: The heat pump is connected on terminal
block -X9 to 3 x 230 V + PE via the junction box with
fuses.
LNPE
Connection on delivery 230 V -8, -12
-X9
230 V: The heat pump is connected on terminal block
-X9 to 230 V + PE via the junction box with fuses.
L
L
N
N
PE
PE
When a separate supply to the compressor and immer-
sion heater is required, to give them separate tariff con-
trol, the following should be done:
■Remove the cable (the dotted line) between the
terminal block -X9 and the compressor contactor
(69). Connect the supply directly to the contactor
according to the picture.
Tariff connection 230 V -8, -12
69
-X9
compressor immersion
heater

L1 L2 L3
60 Line
Load
L
L1 L2 L3
NO
-X9
PEN
L1L2L3
PE
L1L2L3
Electrical connection 17
FIGHTER 1120
PEN
L1L2L3
When a separate supply to the compressor, immersion
heater and the control system is required, to give them
separate tariff control, the following should be done:
■Remove the 3 cables between terminal block -X9
and the EMC filter (60). Connect the supply directly
to the EMC filter.
■Remove the 2 orange straps on terminal block -X9
and connect the control voltage to the outermost
terminals marked L and N on the wiring diagram.
Tariff connection 3 x 400 V + N + PE
Separate supply
additional heat
Separate supply
control system
Separate supply
compressor
-X9
-X9
Connection on delivery 3 x 400 V + N + PE
The heat pump is connected on terminal block -X9 to
3 x 400 V + N + PE via the junction box with fuses.
compressor
immersion
heater
60
Separate supply
control system
Phase sequence monitor
FIGHTER 1120- 15, 17 3x400V
■Orange LED is lit at correct phase
sequence.
■Green LED is lit when there is power.
164

Electrical connection
FIGHTER 1120
18
In this connection option the edge board connector for
the flow line sensor (FG) and return sensor (RG)
should be disconnected.
The flow temperature sensor (FG) is placed in the
submerged tube on the accumulator tank and con-
nected to the screw terminals X4:15—16.
The existing return sensor (RG) is disconnected from
the edge board connector and is connected to
X4:13–14.
See docking options 4.
Temperature sensor with
fixed condensing
The supplied sensor is connected using a two-wire
cable to terminal positions X4:11 and X4:12 on the
EBV card (2). The sensor is placed in a submerged
tube on the accumulator tank, e.g. VPA.
Temperature sensor for
hot tap water
The outside temperature sensor (15) must be installed
in a shaded location on a wall facing north or north-
west, where it will not be affected by any morning sun.
The sensor is connected to terminals X1:1 and X1:2
on the EBV-card (2). Use a two-wire cable of at least
0.5 mm2.
If the outside temperature sensor cable runs close to
power cables, screened cable should be used. All
conduits should be sealed to avoid condensation in
the outdoor temperature sensor capsule.
Outside temperature sensor
Connecting an external contact, for example, a room
thermostat (accessory) or a timer allows you to tem-
porarily or periodically raise or lower the flow tempera-
ture and with that the room temperature. Connected to
terminals X1:3 and X1:4 on the EBV-card (2). See
Menu 2.5 for settings.
External compensation
X1
X4
X4
2
X4
Flow line sensor (FG)
Hot water, jacket
Outside temperature sensor
External compensation 1
Return sensor (RG)