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 42.
How to scroll through menus and make different settings is described on page 44.
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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 46.
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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 53.
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 73 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 9
Cooling section 11
4 Pipe connections 12
General 12
Dimensions and pipe connections 13
Brine side 13
Heating medium side 14
Hot water heater 14
Docking alternatives 15
5 Electrical connections 17
General 17
Connections 19
Settings 21
Optional connections 23
Connecting accessories 26
6 Commissioning and adjusting 27
Preparations 27
Filling and venting 27
Start guide 28
Post adjustment and venting 39
7 Control - Introduction 42
Display unit 42
Menu system 43
8 Control - Menus 46
Menu 1 - INDOOR CLIMATE 46
Menu 2 - HOT WATER 53
Menu 3 - INFO 55
Menu 4 - HEAT PUMP 56
Menu 5 - SERVICE 60
9 Service 67
Service actions 67
10 Disturbances in comfort 73
Info-menu 73
Manage alarm 73
Troubleshooting 73
11 Accessories 75
12 Technical data 76
Dimensions and setting-out coordinates 76
Technical specifications 77
Item register 83
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 (includ-
ing children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concern-
ing 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 2010.
Symbols
NOTE
This symbol indicates danger to machine or
person.
Caution
This symbol indicates important information
about what you should observe when maintain-
ing your installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
Marking
This heat pump is CE marked and fulfils IP21.
The CE marking means that NIBE ensures that the product
meets all regulations that are placed on it based on relev-
ant EU directives. The CE mark is obligatory for most
products sold in the EU, regardless where they are made.
IP21 means that the product can be touched by hand,
that objects with a diameter larger than or equivalent to
12.5 mm cannot penetrate and cause damage and that
the product is protected against vertically falling drops.
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
reporting 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 13)
System flushed
System vented
Antifreeze
Level/Expansion vessel
Particle filter
Safety valve
Shut off valves
Circulation pump setting
Heating medium (page 14)
System flushed
System vented
Expansion vessel
Particle filter
Safety valve
Shut off valves
Circulation pump setting
Electricity (page 17)
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, Filial af NIBE AB, Brogårdsvej 7, 6920 VidebækDK
NIBE – Haato OY, Valimotie 27, 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
NIBE AB, Fekjan 15F, 1394 NesbruNO
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, Järnvägsgatan 40, 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
R
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
cabinet.
See page 69 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 founda-
tion. 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 elim-
inate 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 service, all service on F1245 can be carried out
from the front.
10–25*
(50) (50)
*Depending on routing of supply cables and pipes.
** A normal installation needs 300 - 400 mm (any side) for connec-
tion of equipment, i.e. level vessel, valves and electrical equipment.
5Chapter 2 | Delivery and handlingNIBE™ F1245
2 Delivery and handling
Supplied components
LEK
LEK
LEK
Room sensorCurrent sensor
(not 1-phase)
Outside sensor
LEK
LEK
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
LEK
LEK
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
LEK
LEK
LEK
The side covers can be removed to facilitate the installa-
tion.
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
installation.
Insulation, top
1. Disconnect the cable from the motor and remove
the motor from the shuttle valve as illustrated.
LEK
LEK
A
B
LEK
2. Grip the handle and pull straight out as illustrated.
LEK
Insulation, immersion heater
NOTE
Electrical installation and service must be carried
out under the supervision of a qualified electri-
cian. 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 18.
2. Grip the handle and pull the insulation carefully to-
wards you as illustrated.
LEK
7Chapter 2 | Delivery and handlingNIBE™ F1245
General
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Pipe connections
Connection, heating medium flowXL 1
Connection, heating medium returnXL 2
Connection, cold waterXL 3
Connection, hot waterXL 4
Connection, VVC*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.
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.
NIBE™ F1245Chapter 3 | The heat pump design8
3 The heat pump design
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 has auxiliary switch for
motor cut-out.
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
9Chapter 3 | The heat pump designNIBE™ F1245
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3x400 V 6-12 kW1x230 V 5-12 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 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
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.
11Chapter 3 | The heat pump designNIBE™ F1245
General
Pipe installation must be carried out in accordance with
current norms and directives. F1245 can operate with a
return temperature of up to 58 °C and an outgoing
temperature from the heat pump of 70 (65 °C with only
the compressor).
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 can-
not 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
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
refrigerant, which is vaporised in order to be compressed
in the compressor. The refrigerant, of which the temper-
ature 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
NIBE™ F1245Chapter 4 | Pipe connections12
4 Pipe connections
Dimensions and pipe connec-
tions
620
600
560
70
1775
XXX*
XXX*
25-50
25
50
130
210
390
470
525
XXX*
XXX*
;/ ;/ ;/;/ ;/ ;/
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
120-140325-2x2508kW
140-170400-2x30010 kW
160-1902x250-2x35012 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 depend-
ing 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 collect-
ors, these should be connected in parallel with the pos-
sibility 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 connec-
tion 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.
* Can be angled for side connection.
13Chapter 4 | Pipe connectionsNIBE™ F1245
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).
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 ex-
ample radiators, underfloor heating/cooling, fan con-
vectors 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 outgo-
ing heating medium 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 radiators, a relief valve must be fitted, or some of
the thermostats must be removed to ensure sufficient
flow.
P
;/ ;/ ;/ ;/
Hot water heater
Connecting the hot water heater
႑The hot water heater in the heat pump must be sup-
plied 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 61)
႑The safety valve must have a maximum 1.0 MPa (10.0
bar) opening pressure and be installed on the incom-
ing domestic water line 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.
NIBE™ F1245Chapter 4 | Pipe connections14
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 ac-
cessories used. See page 75 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 re-
maining valve connector can be used for incoming
cold water in F1245.
VV
KV
&203$&7
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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 NIBE FLM to provide ventilation recovery.
႑Pipes and other cold surfaces must be insulated with
diffusion-proof material to prevent condensation.
႑The brine system must be supplied with a pressure
expansion 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
diffusion-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
expansion vessel (CM3). If there is a level vessel (CM2)
this should be replaced.
P
Fläktkonvektor
3
2
1
)DQ FRQYHFWRUV
15Chapter 4 | Pipe connectionsNIBE™ F1245
Under floor heating systems
The external circulation pump is dimensioned for the
under floor heating system’s demand.
Two or more climate systems
When more than one climate system, with a lower tem-
perature, is to be heated up, the following connection
can be used. The shunt valve lowers the temperature to,
for example, the under floor heating system.
The ECS 40 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 re-
verses direction and opens towards the pool exchanger.
The POOL 40 accessory is required for this connection.
Pool
NIBE™ F1245Chapter 4 | Pipe connections16
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 77 for
fuse size.
႑For wiring diagrams for the heat pump, see separate
installation handbook for wiring diagrams.
႑Communication and sensor cables to external connec-
tions 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.
Otherwise the temperature limiter, thermostat,
compressor and the immersion heater can be
damaged.
NOTE
Electrical installation and service must be carried
out under the supervision of a qualified electri-
cian. Cut the current with the circuit breaker
before carrying out any servicing. Electrical in-
stallation and wiring must be carried out in ac-
cordance with the stipulations in force.
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Miniature circuit-breaker
The heat pump and a large proportion of its internal
components 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
compressor 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 con-
trol knob to horizontal position.
Caution
Check the miniature circuit-breaker, temperature
limiter and motor protection breaker. They may
have tripped during transportation.
17Chapter 5 | Electrical connectionsNIBE™ F1245
5 Electrical connections
Accessibility, electrical connection
The plastic cap of the electrical boxes is opened using a
screwdriver.
NOTE
The cover for the input card is opened without
a tool.
Removing the cover, input circuit board
LEK
1
2
1. Push the catch down.
2. Angle out the cover and remove it.
Removing the cover, immersion heater circuit
board
LEK
1
2
A
B
1. Insert the screwdriver (A) and pry the catch carefully
downwards (B).
2. Angle out the cover and remove it.
Removing the cover, base board
Caution
To remove the cover for the base board, the
cover for the input circuit board must first be
removed.
LEK
LEK
1
A
B
2
1. Disconnect the switches using a screwdriver.
2. Insert the screwdriver (A) and pry the catch carefully
downwards (B).
3. Angle out the cover and remove it.
NIBE™ F1245Chapter 5 | Electrical connections18
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