Nibe F1245 User guide
Installer manual
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NIBE™ F1245
Ground source heat pump
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A detailed explanation of the button functions can be found on page 40.
How to scroll through menus and make different settings is described on page 42.
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The mode for setting the indoor temperature is reached, when in the start mode in the main menu, by pressing the OK
button twice. Read more about the settings on page 44.
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To temporarily increase the amount of hot water, first turn the control knob to mark menu 2 (water droplet) and then press
the OK button twice. Read more about the settings on page 51.
In event of disturbances in comfort
If a disturbance in comfort of any type occurs there are some measures that can be taken before you need to contact your
installer. See page 70 for instructions.
Table of Contents
1 Important information 2
Safety information 2
2 Delivery and handling 5
Transport 5
Assembly 5
Supplied components 6
Removing the covers 6
Removing parts of the insulation 7
3 The heat pump design 8
General 8
Electrical cabinets 10
Cooling section 12
4 Pipe connections 13
General 13
Dimensions and pipe connections 14
Brine side 14
Heating medium side 15
Hot water heater 15
Docking alternatives 16
5 Electrical connections 18
General 18
Connections 20
Settings 22
Optional connections 24
Connecting accessories 26
6 Commissioning and adjusting 27
Preparations 27
Filling and venting 27
Start guide 28
Post adjustment and venting 37
7 Control - Introduction 40
Display unit 40
Menu system 41
8 Control - Menus 44
Menu 1 - INDOOR CLIMATE 44
Menu 2 - HOT WATER 51
Menu 3 - INFO 53
Menu 4 - HEAT PUMP 54
Menu 5 - SERVICE 58
9 Service 64
Service actions 64
10 Disturbances in comfort 70
Info-menu 70
Manage alarm 70
Troubleshooting 70
11 Accessories 72
12 Technical data 73
Dimensions and setting-out coordinates 73
Technical specifications 74
Item register 80
1Table of Contents |NIBE™ F1245
Safety information
This manual describes installation and service procedures for
implementation by specialists.
This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilit-
ies, 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.
©NIBE 2011.
Symbols
NOTE
This symbol indicates danger to machine or person.
Caution
This symbol indicates important information about
what you should observe when maintaining your
installation.
TIP
This symbol indicates tips on how to facilitate using
the product.
Serial number
The serial number can be found at the bottom right of the
front cover and in the info menu (menu 3.1).
6HULDO QXPEHU
Caution
Always give the product's serial number when re-
porting a fault.
Country specific information
Installer manual
This installer manual must be left with the customer.
NIBE™ F1245Chapter 1 | Important information2
1 Important information
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. Fill in the page for information about installation data in the User manual.
DateSignatureNotesDescription
✔
Brine (page 14)
System flushed
System vented
Antifreeze
Level/Expansion vessel
Particle filter
Safety valve
Shut off valves
Circulation pump setting
Heating medium (page 15)
System flushed
System vented
Expansion vessel
Particle filter
Safety valve
Shut off valves
Circulation pump setting
Electricity (page 18)
Fuses heat pump
Fuses property
Outside sensor
Room sensor
Current sensor
Safety breaker
Earth circuit-breaker
Setting of emergency mode thermostat
Miscellaneous
Guarantee submitted
3Chapter 1 | Important informationNIBE™ F1245
..........................................................................................................................................................................................................................................................................................................................................................................................
.
Contact information
KNV Energietechnik GmbH, Gahberggasse 11, 4861 SchörflingAT
NIBE Wärmetechnik AG, Winterthurerstrasse 710, CH-8247 FlurlingenCH
Druzstevni zavody Drazice s.r.o, Drazice 69, CZ - 294 71 Benatky nad JizerouCZ
NIBE Systemtechnik GmbH, Am Reiherpfahl 3, 29223 CelleDE
Vølund Varmeteknik A/S, Member of the Nibe Group, Brogårdsvej 7, 6920 VidebækDK
NIBE Energy Systems OY, Juurakkotie 3, 01510 VantaaFI
NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way, Chesterfield S41 9QGGB
NIBE Energietechniek B.V., Postbus 2, NL-4797 ZG WILLEMSTAD (NB)NL
ABK AS, Brobekkveien 80, 0582 Oslo, Postadresse: Postboks 64 Vollebekk, 0516 OsloNO
NIBE-BIAWAR Sp. z o. o. Aleja Jana Pawła II 57, 15-703 BIAŁYSTOKPL
© "EVAN" 17, per. Boynovskiy, Nizhny NovgorodRU
NIBE AB Sweden, Box 14, Hannabadsvägen 5, SE-285 21 MarkarydSE
For countries not mention in this list, please contact Nibe
Sweden or check www.nibe.eu for more information.
NIBE™ F1245Chapter 1 | Important information4
Transport
F1245 should be transported and stored vertically in a dry
place. When being moved into a building, F1245 may be
leant back 45 °. Note! Can be tail heavy.
R
0
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0
Pulling out the cooling module
To simplify transport and service, the heat pump can be
separated by pulling the cooling module out from the cabin-
et.
See page 66 for instructions about the separation.
Assembly
႑Position the heat pump on a firm base that can bear its
weight, preferably on a concrete floor or foundation. Use
the heat pump’s adjustable feet to obtain a horizontal and
stable set-up.
30 - 50 mm
႑The area where the heat pump is located must be
equipped with floor drainage.
႑Install with its back to an outside wall, ideally in a room
where noise does not matter, in order 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.
႑Wherever the unit is located, walls to sound sensitive
rooms should be fitted with sound insulation.
႑Route pipes so they are not fixed to an internal wall that
backs on to a bedroom or living room.
Installation area
Leave a space of 800 mm in front of the heat pump. Approx
50 mm free space is required in order to open the side
hatches. The hatches do not need to be opened during ser-
vice, all service on F1245 can be carried out from the front.
Leave space between the heat pump and wall behind (and
any routing of supply cables and pipes) to reduce the risk
reproduction of any vibration.
(50) (50)
* A normal installation needs 300 - 400 mm (any side) for connec-
tion equipment, i.e. level vessel, valves and electrical equipment.
5Chapter 2 | Delivery and handlingNIBE™ F1245
2 Delivery and handling
Supplied components
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Room sensorCurrent sensor (not
1-phase)
Outside sensor
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O-ringsSafety valve
(0.3 MPa) (3 bar)
Level vessel
Conex connectorsParticle filter
5-10 kW
2 x (ø28 x G25)
2 x (ø22 x G20)
12 kW
4 x (ø28 x G25)
Location
The kit of supplied items is placed in packaging on top of
the heat pump.
Removing the covers
Front cover
1
2
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1. Remove the screws from the lower edge of the front
cover.
2. Lift the cover out at the bottom edge and up.
Side covers
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The side covers can be removed to facilitate the installation.
1. Remove the screws from the upper and lower edges.
2. Twist the cover slightly outward.
3. Move the cover backwards and slightly to the side.
4. Pull the cover to one side.
5. Pull the cover forwards.
NIBE™ F1245Chapter 2 | Delivery and handling6
Removing parts of the insula-
tion
Parts of the insulation can be removed to facilitate the install-
ation.
Insulation, top
1. Disconnect the cable from the motor and remove the
motor from the shuttle valve as illustrated.
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B
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2. Grip the handle and pull straight out as illustrated.
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Insulation, immersion heater
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.
1. Remove the cover of the junction box according to the
description on page 19.
2. Grip the handle and pull the insulation carefully towards
you as illustrated.
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7Chapter 2 | Delivery and handlingNIBE™ F1245
General
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NIBE™ F1245Chapter 3 | The heat pump design8
3 The heat pump design
Pipe connections
Connection, heating medium flowXL 1
Connection, heating medium returnXL 2
Connection, cold waterXL 3
Connection, hot waterXL 4
Connection, HWC*XL 5
Connection, brine inXL 6
Connection, brine outXL 7
* Only applies to enamelled or stainless steel vessels.
HVAC components
Venting, coilQM 22
Shut off valve, heating medium returnQM 32
Shut off valve, brine outQM 33
Shut-off valve, brine inQM 34
Shuttle valve, climate system/water heaterQN 10
Pipe connection, heating medium flowWP 4
Sensors etc.
Flow meter (only for Germany, Switzerland and
Austria)
BF 1
Outside sensorBT 1
Temperature sensors, heating medium flowBT 2
Temperature sensor, hot water chargingBT 6
Temperature sensor, hot water topBT 7
Electrical components
Display unitAA 4
AA4-XJ3 USB outlet (no function)
AA4-XJ4 Service outlet (No function)
Immersion heaterEB 1
Sacrificial anode*FR 1
SwitchSF 1
* Only heat pump with enamelled vessel.
Miscellaneous
Rating platePF 1
Type plate, cooling sectionPF 2
Serial number platePF 3
Cable gland, incoming electricityUB 1
Cable glandUB 2
Cable gland, rear side, sensorUB 3
Designations in component locations according to standard
IEC 81346-1 and 81346-2.
9Chapter 3 | The heat pump designNIBE™ F1245
Electrical cabinets
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Electrical components
Immersion heater cardAA 1
Base cardAA 2
Input circuit boardAA 3
Sacrificial anode card*AA 8
Miniature circuit-breakerFA 1
Motor cut-out**FB 1
Temperature limiter/Emergency mode thermostatFD 1
* Only heat pump with enamelled vessel.
** 1x230 V, 3x230 V 6-10 kW, 3x400V 5 kW has auxiliary
switch for motor cut-out.
Designations in component locations according to standard
IEC 81346-1 and 81346-2.
NIBE™ F1245Chapter 3 | The heat pump design10
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1x230 V 5-12 kW
3x400V5kW
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3x400 V 6-12 kW
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3x230 V 6-8 kW
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3x230 V 10 kW
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3x230 V 12 kW
Electrical components
Soft-start cardAA 10
Phase sequence monitor (3-phase)BE 4
CapacitorCA 1
Motor cut-out**FB 1
Contactor, compressorQA 10
Soft-starterQA 30
Suppression capacitorRF 1
Terminal blockX 301
Terminal blockX 302
** 1x230 V, 3x230 V 6-10 kW, 3x400V 5 kW has auxiliary
switch for motor cut-out.
Designations in component locations according to standard
IEC 81346-1 and 81346-2.
11Chapter 3 | The heat pump designNIBE™ F1245
Cooling section
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Pipe connections
Service connection, high pressureXL 20
Service connection, low pressureXL 21
HVAC components
Circulation pumpGP 1
Brine pumpGP 2
Drainage, climate systemQM 1
Draining, brine sideQM 2
Sensors etc.
High pressure pressostatBP 1
Low pressure pressostatBP 2
Temperature sensors, heating medium returnBT 3
Temperature sensor, brine inBT 10
Temperature sensor, brine outBT 11
Temperature sensor, condenser supply lineBT 12
Temperature sensor, hot gasBT 14
Temperature sensor, fluid pipeBT 15
Temperature sensor, suction gasBT 17
Electrical components
Joint cardAA 100
Compressor heaterEB 10
Cooling components
EvaporatorEP 1
CondenserEP 2
CompressorGQ 10
Drying filterHS 1
Expansion valveQN 1
Designations in component locations according to standard
IEC 81346-1 and 81346-2.
NIBE™ F1245Chapter 3 | The heat pump design12
General
Pipe installation must be carried out in accordance with
current norms and directives. F1245 can operate with a re-
turn temperature of up to 58 °C and an outgoing temperat-
ure from the heat pump of 70 (65 °C with only the com-
pressor).
F1245 is not equipped with external shut off valves; these
must be installed to facilitate any future servicing.
NOTE
The pipe system needs to be flushed out before
the heat pump is connected so that debris cannot
damage component parts.
Symbol key
MeaningSymbol
Venting valve
Shut-off valve
Non-return valve
Shunt / shuttle valve
Safety valve
Trim valve
Temperature sensor
Level vessel
Pressure gauge
P
Circulation pump
Particle filter
Auxiliary relay
Fan
Flow meter (only for Germany, Switzerland and
Austria)
Compressor
Heat exchanger
System diagram
F1245 consists of a heat pump, water heater, electrical
module, circulation pumps and a control system. F1245 is
connected to the brine and heating medium circuits.
In the heat pump evaporator, the brine (water mixed with
anti-freeze, glycol or ethanol) releases its energy to the refri-
gerant, which is vaporised in order to be compressed in the
compressor. The refrigerant, of which the temperature has
now been raised, is passed to the condenser where it gives
off its energy to the heating medium circuit and, if necessary,
to the water heater. If there is a greater need for heating/hot
water than the compressor can provide there is an integrated
immersion heater.
;/ ;/ ;/;/ ;/ ;/
Connection, heating medium flowXL 1
Connection, heating medium returnXL 2
Connection, cold waterXL 3
Connection, hot waterXL 4
Connection, brine inXL 6
Connection, brine outXL 7
13Chapter 4 | Pipe connectionsNIBE™ F1245
4 Pipe connections
Dimensions and pipe connec-
tions
620
600
560 440
70
1775
650*
25-50
25
50
130
210
390
470
525
650*
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Pipe dimensions
12
kW
5-10
kW
Connection
28(mm)(XL6)/(XL7) Brine in/out ext Ø
2822(mm)(XL1)/(XL2) Heating medium
flow/return ext Ø
22(mm)(XL3)/(XL4) Cold/hot water Ø
Brine side
Collector
Rock heat, recom-
mended active
drilling depth (m)
Surface soil heat,
recommended col-
lector length (m)
Type
70-90200-3005kW
90-110250-4006kW
120-145325-2x2508kW
150-180400-2x30010 kW
180-2102x250-2x35012 kW
Applies to PEM hose 40x2.4 PN 6.3.
These are rough example values. At installation the correct
calculations must be made according to local conditions.
Caution
The length of the collector hose varies depending
on the rock/soil conditions, climate zone and on
the climate system (radiators or underfloor heating).
Max length per coil for the collector should not exceed 400
m.
In those cases where it is necessary to have several collectors,
these should be connected in parallel with the possibility for
adjusting the flow of the relevant coil.
For surface soil heat, the hose should be buried at a depth
determined by local conditions and the distance between
the hoses should be at least 1 metre.
For several bore holes, the distance between the holes must
be determined according to local conditions.
Ensure the collector hose rises constantly towards the heat
pump to avoid air pockets. If this is not possible, airvents
should be used.
As the temperature of brine system can fall below 0 °C it
must be protected against freezing down to -15 °C. 1 litre
of ready mixed brine per meter of collector hose (applies
when using PEM-hose 40x 2.4 PN 6.3) is used as a guide
value when making the volume calculation.
Side connection
It is possible to angle the brine connections, for connection
to the side instead of top connection.
To angle out a connection:
1. Disconnect the pipe at the top connection.
2. Angle the pipe in the desired direction.
3. If necessary, cut the pipe to the desired length.
Connecting the brine side
႑Insulate all indoor brine pipes against condensation.
႑The level vessel must be installed as the highest point in
the brine system on the incoming pipe before the brine
pump (Alt. 1).
* Can be angled for side connection.
NIBE™ F1245Chapter 4 | Pipe connections14
If the level vessel cannot be placed at the highest point
an expansion vessel must be used (Alt. 2).
NOTE
Note that condensation may drip from the level
vessel. Position the vessel so that this does not harm
other equipment.
႑Details of the antifreeze used must be shown on the level
vessel.
႑Install the supplied safety valve under the level vessel as
illustrated. The entire length of the overflow water pipe
from the safety valves must be inclined to prevent water
pockets and must also be frost proof.
႑Install shut off valves as close to the heat pump as possible.
႑Fit the supplied particle filter on the incoming pipe.
In the case of connection to an open groundwater system,
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.
P
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Heating medium side
Connecting the climate system
A climate system is a system that regulates indoor comfort
with the help of the control system in F1245 and for example
radiators, underfloor heating/cooling, fan convectors etc.
႑Install all required safety devices, shut-off valves (as close
to the heat pump as possible), and supplied particle filter.
႑The safety valve must have a maximum 0.25 MPa (2.5 bar)
opening pressure and be installed on the heating medium
return as illustrated. The entire length of the overflow
water pipe from the safety valves must be inclined to
prevent water pockets and must also be frost proof.
႑When connecting to a system with thermostats on all ra-
diators, a relief valve must be fitted, or some of the ther-
mostats must be removed to ensure sufficient flow.
P
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Hot water heater
Connecting the hot water heater
႑The hot water heater in the heat pump must be supplied
with necessary set of valves.
႑The mixing valve must be installed if the setting is changed
so that the temperature can exceed 60 °C. The setting is
made in menu 5.1.1 (page 59)
႑The safety valve must have a maximum 1.0 MPa (10.0 bar)
opening pressure and be installed on the incoming domest-
ic water line as illustrated. The entire length of the over-
flow water pipe from the safety valves must be inclined
to prevent water pockets and must also be frost proof.
15Chapter 4 | Pipe connectionsNIBE™ F1245
Docking alternatives
F1245 can be connected in several different ways, some of
which are shown below.
Further option information is available at www.nibe.eu and
in the respective assembly instructions for the accessories
used. See page 72 for a list of the accessories that can be
used with F1245.
Extra electric hot water heater
The heat pump should be supplemented with an electric
water heater, for example NIBE COMPACT, if a whirlpool or
other significant consumer of hot water is installed.
႑The valve connection on COMPACT can be separated. The
mixing valve remains on COMPACT and the remaining
valve connector can be used for incoming cold water in
F1245.
VV
KV
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Buffer vessel
If the climate system volume is too small for the heat pump
output, the radiator system can be supplemented with a
buffer vessel, for example NIBE UKV.
UKV
P
Ventilation recovery
The installation can be supplemented with the exhaust air
module FLM to provide ventilation recovery.
႑Pipes and other cold surfaces must be insulated with dif-
fusion-proof material to prevent condensation.
႑The brine system must be supplied with a pressure expan-
sion vessel (CM3). If there is a level vessel (CM2) this
should be replaced.
Frånluft
Ø 160
Avluft
Ø 160
P
([WUDFW DLU
([KDXVW
DLU
)/0
Free cooling
The installation can be supplemented with fan convectors,
for example, in order to allow connections for free cooling
(PCS 44).
႑Pipes and other cold surfaces must be insulated with dif-
fusion-proof material to prevent condensation.
႑Where the cooling demand is high, fan convectors with
drip trays and drain connection are needed.
႑The brine system must be supplied with a pressure expan-
sion vessel (CM3). If there is a level vessel (CM2) this
should be replaced.
P
Fläktkonvektor
3
2
1
)DQ FRQYHFWRUV
NIBE™ F1245Chapter 4 | Pipe connections16
Under floor heating systems
The external circulation pump is dimensioned for the under
floor heating system’s demand.
If the climate system volume is too small for the heat pump
output, the underfloor heating system can be supplemented
with a buffer vessel, for example NIBE UKV.
UKV
P
Two or more climate systems
When more than one climate system, with a lower temper-
ature, is to be heated up, the following connection can be
used. The shunt valve lowers the temperature to, for ex-
ample, the under floor heating system.
The ECS 40/ECS 41 accessory is required for this connection.
Ground water system
An intermediate heat exchanger is used to protect the heat
pump's exchanger from dirt. The water is released into a
buried filtration unit or a drilled well. See page 25 for more
information about connecting a ground water pump.
Pool
Charging of the pool is controlled by the pool sensor. In the
case of low pool temperatures, the shuttle valve reverses
direction and opens towards the pool exchanger. The POOL
40 accessory is required for this connection.
Pool
17Chapter 4 | Pipe connectionsNIBE™ F1245
General
All electrical equipment, except the outdoor sensors, room
sensors and the current sensors are ready connected at the
factory.
႑Disconnect the heat pump before insulation testing the
house wiring.
႑F1245 is not reconnectable between 1-phase and 3-phase,
neither is it reconnectable between 3x230V and 3x400V.
႑If the building is equipped with an earth-fault breaker,
F1245 should be equipped with a separate one.
႑If a miniature circuit breaker is used this should have at
least motor characteristic “C”. See page 74 for fuse size.
႑For wiring diagrams for the heat pump, see separate in-
stallation handbook for wiring diagrams.
႑Communication and sensor cables to external connections
must not be laid close to high current cables.
႑The minimum area of communication and sensor cables
to external connections must be 0.5 mm² up to 50 m, for
example EKKX or LiYY or equivalent.
႑When cable routing in F1245, cable grommets (e.g.
UB1-UB3, marked in image) must be used. In UB1-UB3
the cables are inserted through the heat pump from the
back to the front.
NOTE
The switch (SF1) must not be moved to ""or" "
until the boiler has been filled with water. Other-
wise the temperature limiter, thermostat, com-
pressor and the immersion heater can be damaged.
NOTE
Electrical installation and service must be carried
out under the supervision of a qualified electrician.
Cut the current with the circuit breaker before
carrying out any servicing. Electrical installation and
wiring must be carried out in accordance with the
stipulations in force.
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Miniature circuit-breaker
The heat pump and a large proportion of its internal com-
ponents are internally fused by a miniature circuit breaker
(FA1).
Temperature limiter
The temperature limiter (FD1) cuts the current supply to the
electrical addition if the temperature rises between 90 and
100°C and can be manually reset.
Resetting
The temperature limiter (FD1) is accessible behind the front
cover. Reset the temperature limiter by pressing the button
(FD1-SF2) using a small screwdriver.
Motor cut-out
Motor protection breaker (FB1) cuts the power to the com-
pressor if the current is too high.
Resetting
The motor protection breaker (FB1) is accessible behind the
front cover. The breaker is reset by twisting the control knob
to horizontal position.
Caution
Check the miniature circuit-breaker, temperature
limiter and motor protection breaker. They may
have tripped during transportation.
NIBE™ F1245Chapter 5 | Electrical connections18
5 Electrical connections
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