Nibe F1345 Series User guide

Installer manual
LEK
NIBE™ F1345
Ground source heat pump
IHB GB 1544-3
331036

Table of Contents
31 Important information
3Symbols
3Marking
4Safety precautions
5Serial number
5Recovery
5Country specific information
6Inspection of the installation
7Contact information
82 Delivery and handling
8Transport
8Assembly
9Supplied components
9Removing the covers
103 The heat pump design
10General
12Electrical cabinets
12Cooling section
144 Pipe connections
14General
15Dimensions and pipe connections
16Brine side
18Heating medium side
18Water heater
19Docking alternatives
215 Electrical connections
21General
22Connections
24Optional connections
31Connecting accessories
326 Commissioning and adjusting
32Preparations
32Filling and venting
33Start guide
34Post adjustment and venting
397 Accessories
418 Technical data
41Dimensions and setting-out coordinates
42Technical specifications
45Energy labelling
50
Electrical wiring diagram, 3x400V 24 - 60
kW
61Index
NIBE™ F1345Chapter |2

This manual describes installation and service proced-
ures for implementation by specialists.
This appliance is designed for use in a
home environment and not intended
to be used by persons (including chil-
dren) with reduced physical, sensory or
mental capabilities, or lack of experi-
ence and knowledge, unless they have
been given supervision or instruction
concerning use of the appliance by a
person responsible for their safety. This
in accordance to applicable parts of the
low-voltage directive 2006/95/EC, LVD.
The appliance is also intended for use
by experts or trained users in shops,
hotels, light industry, on farms and in
similar environments. This in accordance
to applicable parts of the machinery
directive 2006/42/EC.
Children should be supervised to ensure
that they do not play with the appli-
ance.
This is an original instruction manual.
Translation is not allowed without ap-
proval from NIBE.
Rights to make any design or technical
modifications are reserved.
©NIBE 2015.
Symbols
NOTE
This symbol indicates danger to machine or
person.
Caution
This symbol indicates important information
about what you should observe when main-
taining your installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
Marking
F1345 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 relevant EU directives. The CE mark is obligat-
ory 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.
3Chapter 1 | Important informationNIBE™ F1345
1 Important information

Safety precautions
Caution
Install the system in full accordance with this installation
manual.
Incorrect installation can cause bursts, personal injury, water
leaks, refrigerant leaks, electric shocks and fire.
Observe the measurement values before working on the
cooling system, especially when installing in small rooms, so
that the limit for the refrigerant's density is not exceeded.
Consult an expert to interpret the measurement values. If the
refrigerant density exceeds the limit, lack of oxygen can occur in
the event of any leak, which can cause serious accidents.
Use original accessories and the stated components for the
installation.
If parts other than those stated by us are used, water leaks, electric
shocks, fire and personal injury may occur as the unit may not
work properly.
Ventilate the working area well – refrigerant leakage may
occur during service work.
If the refrigerant comes into contact with naked flames, poisonous
gas is created.
Install the unit in a location with good support.
Unsuitable installation locations can cause the unit to fall and
cause material damage and personal injury. Installation without
sufficient support can also cause vibrations and noise.
Ensure that the unit is stable when installed, so that it can
withstand earthquakes and strong winds.
Unsuitable installation locations can cause the unit to fall and
cause material damage and personal injury.
The electrical installation must be carried out by a qualified
electrician and the system must be connected as a separate
circuit.
Power supply with insufficient capacity and incorrect function
can cause electric shocks and fire.
Use the stated cables for the electrical connection, tighten
the cables securely in the terminal blocks and relieve the
wiring correctly to prevent overloading the terminal blocks.
Loose connections or cable mountings can cause abnormal heat
production or fire.
Check, after completed installation or service, that no refri-
gerant leaks from the system in gas form.
If refrigerant gas leaks into the house and comes into contact
with an aerotemp, an oven or other hot surface, poisonous gases
are produced.
Use types of pipe and tools stated for this type of refrigerant.
Using existing parts for other refrigerants can cause breakdowns
and serious accidents due to process circuit bursts.
Switch off the compressor before opening/breaching the
refrigerant circuit.
If the refrigerant circuit is breached /opened whilst the com-
pressor is running, air can enter the process circuit. This can cause
unusually high pressure in the process circuit, which can cause
bursts and personal injury.
Switch off the power supply in the event of a service or in-
spection.
If the power supply is not shut off, there is a risk of electric shocks
and damage due to the rotating fan.
Do not run the unit with removed panels or protection.
Touching rotating equipment, hot surfaces or high voltage parts
can cause personal injury due to entrapment, burns or electric
shocks.
Cut the power before starting electrical work.
Failure to cut the power can cause electric shocks, damage and
incorrect function of the equipment.
Care
Carry out the electrical installation with care.
Do not connect the ground lead to the gas line, water line,
lightning conductor or telephone line's ground lead. Incorrect
grounding can cause unit faults such as electric shocks due to
short-circuiting.
Use main switch with sufficient breaking capacity.
If the switch does not have sufficient breaking capacity, malfunc-
tions and fire can occur.
Always use a fuse with the correct rating in the locations
where fuses are to be used.
Connecting the unit with copper wire or other metal thread can
cause unit breakdown and fire.
Cables must be routed so that they are not damaged by
metal edges or trapped by panels.
Incorrect installation can cause electric shocks, heat generation
and fire.
Do not install the unit in close proximity to locations where
leakage of combustible gases can occur.
If leaking gases collect around the unit, fire may occur.
Do not install the unit where corrosive gas (for example ni-
trous fumes) or combustible gas or steam (for example
thinner and petroleum gases) can build up or collect, or where
volatile combustible substances are handled.
Corrosive gas can cause corrosion to the heat exchanger, breaks
in plastic parts etc. and combustible gas or steam can cause fire.
Do not use the unit for specialist purposes such as for storing
food, cooling precision instruments, freeze-conservation of
animals, plants or art.
This can damage the items.
Do not install and use the system close to equipment that
generates electromagnetic fields or high frequency harmon-
ics.
Equipment such as inverters, standby sets, medical high frequency
equipment and telecommunications equipment can affect the
unit and cause malfunctions and breakdowns. The unit can also
affect medical equipment and telecommunications equipment,
so that it functions incorrectly or not at all.
Take care when carrying the unit by hand.
If the unit weights more than 20 kg, it must be carried by two
people. Use gloves to minimize the risk of cuts.
Dispose of any packaging material correctly.
Any remaining packaging material can cause personal injury as
it may contain nails and wood.
Do not touch any buttons with wet hands.
This can cause electric shocks.
Do not touch any refrigerant pipes with your hands when
the system is in operation.
During operation the pipes become extremely hot or extremely
cold, depending on the method of operation. This can cause burn
injuries or frost injuries.
Do not shut off the power supply immediately after operation
has start.
Wait at least 5 minutes, otherwise there is a risk of water leakage
or breakdown.
Do not control the system with the main switch.
This can cause fire or water leakage. In addition, the fan can start
unexpectedly, which can cause personal injury.
Especially for units intended for R410A
- Do not use other refrigerants than R410A. R410A means that
the pressure is about 1.6 times as high as conventional refriger-
ants.
- The filling connections on units with R410A are different sizes,
to prevent the system being filled with the incorrect refrigerant
by mistake.
- Do not use charging bottles. These types of bottles change the
composition of the refrigerant, which makes the performance of
the system worse.
- When filling refrigerant, the refrigerant must always leave the
bottle in liquid form.
NIBE™ F1345Chapter 1 | Important information4

Serial number
The serial number can be found at the bottom right of
the front cover, on the type plate PF1, (see chapter Heat
Pump Design for location) and in the info menu (menu
3.1).
Serial number
Caution
Always give the product's serial number (14
digits) when reporting a fault.
Recovery
Leave the disposal of the packaging to the in-
staller who installed the product or to special
waste stations.
Do not dispose of used products with normal
household waste. It must be disposed of at a
special waste station or dealer who provides this type
of service.
Improper disposal of the product by the user results in
administrative penalties in accordance with current
legislation.
Country specific information
Installer manual
This installer manual must be left with the customer.
5Chapter 1 | Important informationNIBE™ F1345

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. In addition, fill in the page for the installation data in the Operating
Manual.
DateSignatureNotesDescription
✔
Brine (page 16)
Non-return valves
System flushed
System vented
Antifreeze
Level/Expansion vessel
Particle filter
Safety valve
Shut off valves
Circulation pumps set
Heating medium (page 18)
Non-return valves
System flushed
System vented
Expansion vessel
Particle filter
Safety valve
Shut off valves
Circulation pumps set
Electricity (page 21)
Fuses heat pump
Fuses property
Outside sensor
Room sensor
Current sensor
Safety breaker
Earth circuit-breaker
Relay output for emergency mode
NIBE™ F1345Chapter 1 | Important information6

Contact information
KNV Energietechnik GmbH, Gahberggasse 11, 4861 SchörflingAT
Tel: [phone] Fax: [phone] E-mail: [e-mail] www.knv.at
NIBE Wärmetechnik c/o ait Schweiz AG, Industriepark, CH-6246 AltishofenCH
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.ch
Druzstevni zavody Drazice s.r.o, Drazice 69, CZ - 294 71 Benatky nad JizerouCZ
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.cz
NIBE Systemtechnik GmbH, Am Reiherpfahl 3, 29223 CelleDE
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.de
Vølund Varmeteknik A/S, Member of the Nibe Group, Brogårdsvej 7, 6920 VidebækDK
Tel: [phone] Fax: [phone] E-mail: [email protected] www.volundvt.dk
NIBE Energy Systems OY, Juurakkotie 3, 01510 VantaaFI
Puh: 09-274 697 0 Fax: [phone] E-mail: inf[email protected] www.nibe.fi
NIBE Energy Systems France Sarl, Zone industrielle RD 28, Rue du Pou du Ciel, 01600 ReyrieuxFR
Tel : [phone] Fax : [phone] E-mail: [email protected] www.nibe.fr
NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way, Chesterfield S41 9QGGB
Tel: [phone] Fax: [phone] E-mail: [email protected].uk www.nibe.co.uk
NIBE Energietechniek B.V., Postbus 634, NL 4900 AP OosterhoutNL
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibenl.nl
ABK AS, Brobekkveien 80, 0582 Oslo, Postadresse: Postboks 64 Vollebekk, 0516 OsloNO
Tel. sentralbord: [phone] E-mail: [email protected] www.nibeenergysystems.no
NIBE-BIAWAR Sp. z o. o. Aleja Jana Pawła II 57, 15-703 BIAŁYSTOKPL
Tel: [phone] Fax: [phone] E-mail: [e-mail] www.biawar.com.pl
© "EVAN" 17, per. Boynovskiy, Nizhny NovgorodRU
Tel./fax [phone] E-mail: [email protected] www.nibe-evan.ru
NIBE AB Sweden, Box 14, Hannabadsvägen 5, SE-285 21 MarkarydSE
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.se
For countries not mention in this list, please contact Nibe Sweden or check www.nibe.eu for more information.
7Chapter 1 | Important informationNIBE™ F1345

Transport
F1345 should be transported and stored vertically in a
dry place. While being moved into a building, the heat
pump may be tilted back 45 °.
NOTE
The heat pump is top heavy.
If the cooling modules are pulled out and transported
upright, F1345 can be transported on its back.
NOTE
Ensure that the heat pump cannot fall over
during transport.
TIP
The side panels can be removed for easier in-
stallation in the building.
R
0
+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
R
0
Lift from the street to the set up location
If the base allows, the simplest thing is to use a pallet
truck to move the F1345 to the set up location.
NOTE
The centre of gravity is offset to one side (see
print on the packaging).
It is also possible to transport F1345 on a sack truck.
F1345 must be taken from its heaviest side (see printed
material on packaging for where the centre of gravity
is) and two people are required to lift F1345.
Lift from the pallet to final positioning
Before lifting, remove the packaging and the load an-
chor to the pallet as well as front and side panels.
Before lifting, the heat pump must be separated by
pulling the cooling modules out from the cabinet. See
the service chapter in the operating manual for instruc-
tions about the separation.
Carry the heat pump by the upper cooling module's
slide rails, use gloves.
NOTE
The heat pump must not be moved when only
the lower cooling module has been pulled out.
If the heat pump is not secured in position the
upper cooling module must always be re-
moved before the lower one can be pulled
out.
Scrapping
For scrapping, remove the product in reverse order.
Assembly
■Position F1345 on a firm base that can take the
weight, preferably on a concrete floor or foundation.
Use the product's adjustable feet to obtain a horizont-
al and stable set-up.
30 - 50 mm
30 - 50 mm
15 - 40 mm
■The area where F1345 is located must be equipped
with floor drainage.
■Install 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.
■Wherever the unit is located, walls to sound sensitive
rooms 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.
Installation area
Leave a free space of 800 mm in front of the product.
Approx. 50 mm free space is required on each side, to
remove the side panels. The panels do not need to be
removed during service, all service on F1345 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 of any transmission
of vibrations.
NIBE™ F1345Chapter 2 | Delivery and handling8
2 Delivery and handling

(50) (50)
800
*
*
* A normal installation needs 300 - 400 mm (any side) for connec-
tion equipment, i.e. level vessel, valves and electrical equipment.
Supplied components
See separate list of supplied components.
Location
The enclosed kit is placed in the packaging on the same
pallet as the heat pump.
Removing the covers
Front cover
1
2
LEK
LEK
LEK
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.
LEK
The side covers can be removed to facilitate the install-
ation.
1. Remove the screws from the upper and lower
edges.
2. Twist the cover slightly outward.
3. Move the hatch outwards and backwards.
4. Assembly takes place in the reverse order.
9Chapter 2 | Delivery and handlingNIBE™ F1345

General
L1
-X3 -X4
123
-AA101 -AA101
NL2 L3 1 2 3456789
-X5
1 2 3456789
-X6
-X7 -X8 -X9
-FC1
-AA101 -AA101
-AA101 -AA101 -AA101
1 2 341 2 31 2 31 2 345
-X10
A B A B
-AA3-X7
K1
-AA101
K2 K3
C C NO NC
K4
CNO NC
QN10 GP16
LNL L L N N N LNLNPE
PE
6789 10 11 12 13 14 15 16 17 18 19 20 21 22
12V
A B 13 14
-BE1
-GP16
-BE2
-BE3
AUX 4
AUX 5
1 2 3456789 10 11 12 13 14 15
-AA3
-X6
0-10V
-EP14 -EP15
-BF1
16 17 18 2
-AA3
-X22
-AA3
-AA3
-X20 -X21
131 2 3
-X23
-BT1
-BT50
-BT25
-BT6
AUX 1
AUX 2
AUX 3
-BT7
-BT71
2.0
AA101-X6
AA3-X23AA3-X21AA101-X9AA101-X7AA101-X5AA101-X3
AA101-X4 FC1 AA101-X8 AA101-X10 AA3-X6 AA3-X20 AA3-X22
AA101-XJ2
LEK
AA4
SF1
AA4-XJ4
AA4-XJ3
-XJ3
-XJ13
-XJ4
-XJ5
-XJ1
EP15
EP14
UB2
UB3
EP15-XL1
EP15-XL2
EP15-XL6
EP15-XL7
EP14-XL1
EP14-XL2
EP14-XL6
EP14-XL7
UB3
UB2
UB1
EP15-PF2
EP14-PF2
PF1
LEK
-XJ6
-AA101-X1
-AA101-X2
FC1 -AA101
-AA3
-AA27
-XJ10
-AA2
-XJ9
-AA26
-XJ11
-XJ7
-XJ8
NIBE™ F1345Chapter 3 | The heat pump design10
3 The heat pump design

Pipe connections
Connection, heating medium flowXL 1
Connection, heating medium returnXL 2
Connection, brine inXL 6
Connection, brine outXL 7
HVAC components
Cooling moduleEP 14
Cooling moduleEP 15
Sensors etc.
Outdoor temperature sensor*BT 1
* Not illustrated
Electrical components
Base card-AA 2
Input circuit board-AA 3
Terminal block, sensor-AA3-X 6
Terminal block -EP14 -BP8-AA3-X 20
Terminal block -EP15 -BP8-AA3-X 21
Terminal block, flow meter -EP14 -BF1-AA3-X 22
Terminal block, flow meter -EP15 -BF1-AA3-X 23
Display unit-AA 4
-AA4-XJ3 USB outlet (no function)
-AA4-XJ4 Service outlet (No function)
Base card 2-AA 26
Relay board for base-AA 27
Interface board-AA101
Terminal block, incoming electrical supply-AA101-X 1
Terminal block, supply -EP14-AA101-X 2
Terminal block, operating voltage out -X4-AA101-X 3
Terminal block, operating voltage in (tariff
option)
-AA101-X 4
Terminal block, supply, external accessor-
ies.
-AA101-X 5
Terminal block, -QN10 and -GP16-AA101-X 6
Terminal block, step controlled or shunted
additional heat.
-AA101-X 7
Emergency mode relay-AA101-X 8
Alarm relay, AUX relay-AA101-X 9
Communication, PWM, Power supply-AA101-X 10
Miniature circuit-breaker-FC 1
Switch on Display -AA4-SF 1
Connector, electrical supply to compressor,
cooling module -EP14
-XJ 1
Connector, electrical supply to compressor,
cooling module -EP15
-AA101-XJ 2
Compressor heater -EP14-XJ 3
Connector, brine pump, cooling module
-EP14 (only 24 and 30 kW)
-XJ 4
Connector, heating medium pump, cool-
ing module -EP14
-XJ 5
Compressor heater-EP15-XJ 6
Connector, brine pump, cooling module
-EP15 (only 24 and 30 kW)
-XJ 7
Connector, heating medium pump, cool-
ing module -EP15
-XJ 8
Communication motor module -EP15-XJ 9
Communication motor module -EP14-XJ 10
Pumps, compressor heater -EP14-XJ 11
Communication motor module -EP14-XJ 13
Miscellaneous
Rating platePF 1
Type plate, cooling sectionPF 2
Cable gland, incoming electricityUB 1
Cable gland, powerUB 2
Cable gland, signalUB 3
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
11Chapter 3 | The heat pump designNIBE™ F1345

Electrical cabinets
F1345 24 kW, 3x400 V
LEK
LEK
LEK
FC1 AA10
F1345 30, 40 and 60 kW, 3x400 V
LEK
LEK
LEK
FC1 AA10
Electrical components
Soft-start cardAA 10
Miniature circuit-breakerFC 1
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
Cooling section
F1345 24 and 30 kW, 3x400 V
LEK
AA100
BT10
BT11
QM2
BT12
GP2
GP1
BT3
QM1
X401
F1345 40 and 60 kW, 3x400 V
LEK
AA100
BT10
BT11
BT12
GP1
BT3
QM1
X401
QM2
F1345 24 kW, 3x400 V
LEK
EP2
BT14
BT17
EP1
BP2
BT15
BP1
GQ10
HS1
XL21
QN1
EB10 XL20
BP8
NIBE™ F1345Chapter 3 | The heat pump design12

F1345 30 kW, 3x400 V
LEK
EP2
BT14
BP8
EP1
BP2
BT15
BP1
GQ10
HS1
XL21
QN1
EB10 XL20
BT17
BT29
F1345 40 kW, 3x400 V
LEK
EP2
BT14
HS1
EP1
BT17
GQ10
XL21
BP1
BP8
XL20
QN1
EB10
BT15
BP2
BT29
F1345 60 kW, 3x400 V
LEK
EP2
BT14
BP8
EP1
BT17
GQ10
XL21
BP1
HS1
XL20
QN1
EB10
BT15
BP2
BT29
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
Sensor, low pressureBP 8
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
Temperature sensor, compressorBT 29
Electrical components
Joint cardAA 100
Compressor heaterEB 10
Joint connector, compressor and motor moduleX 401
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.
13Chapter 3 | The heat pump designNIBE™ F1345

General
Pipe installation must be carried out in accordance with
current norms and directives. F1345 can operate with
a return temperature of up to 58 °C and an outgoing
temperature from the heat pump of 65 °C.
F1345 is not equipped with internal shut off valves;
these must be installed to facilitate any future servicing.
NOTE
The pipe system needs to be flushed out be-
fore the heat pump is connected so that debris
cannot damage component parts.
NOTE
Do not solder directly on the heat pump pipes,
because of internal sensors.
Compression ring coupling alternatively pres-
sure connection should be used.
NOTE
The heating system's pipes must be earthed
to prevent a potential difference between
them and the building's protective earth.
Symbol key
MeaningSymbol
Venting valve
Shut-off valve
Non-return valve
Shunt / shuttle valve
Safety valve
Temperature sensor
Expansion vessel
Pressure gauge
P
Circulation pump
Particle filter
Auxiliary relay
Compressor
Heat exchanger
System diagram
F1345 consists of two heat pump modules, circulation
pumps and control system with possibility of additional
heat. F1345 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 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 any docked
water heater. If there is a greater need for heating/hot
water than the compressors can provide it is possible
is to connect an external immersion heater.
40kW24-30kW 60kW
EP15-XL1
EP15-XL2
EP15-XL6
EP15-XL7
EP14-XL1
EP14-XL2
EP14-XL6
EP14-XL7
EP15
EP14
Cooling moduleEP 14
Cooling moduleEP 15
Connection, heating medium flowXL 1
Connection, heating medium returnXL 2
Connection, brine inXL 6
Connection, brine outXL 7
NIBE™ F1345Chapter 4 | Pipe connections14
4 Pipe connections

Dimensions and pipe connec-
tions
1775
600
560 440
735
1555
1715
80 145 145 145
450620
820
85
25-50
1775
600
560 440
735
1555
1715
80 145 145 145
524620
820
85
25-50
Pipe dimensions
Connection
internal thread G1 1/2(XL1) Heating medium
supply external thread G2
internal thread G1 1/2(XL2) Heating medium re-
turn external thread G2
internal thread G1 1/2(XL6) Brine in
external thread G2
internal thread G1 1/2(XL7) Brine out
external thread G2
EP15-XL1
EP15-XL2
EP15-XL6
EP15-XL7
EP14-XL1
EP14-XL2
EP14-XL6
EP14-XL7
15Chapter 4 | Pipe connectionsNIBE™ F1345

Brine side
Collector
Rock heat, recom-
mended active
drilling depth (m)
Surface soil heat,
recommended col-
lector length (m)
Type
2x180-3x1803x350-4x40024 kW
3x150-5x1503x450-4x45030 kW
4x170-5x2004x500-6x50040 kW
6x150-8x1806x450-8x45060 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 under-
floor heating).
Max length per coil for the collector should not exceed
500 m.
The collectors must always be connected in parallel
with the possibility of adjusting the flow for the relev-
ant 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.
Caution
Because the temperature of the brine system
varies depending on the heat source, the menu
5.1.7 "br pmp al set." must be set to the suit-
able value.
Connecting the brine side
■The pipe connections are on the rear of the heat
pump.
■Insulate all indoor brine pipes against condensation.
NOTE
Condensation may drip from the expansion
vessel. Position the vessel so that this does not
harm other equipment.
Caution
When necessary you should install venting
valves in the brine system.
■Mark the brine system with the antifreeze that is
used.
■Install the supplied safety valve at the expansion
vessel as illustrated in the outline diagram. The entire
length of the overflow water pipe from the safety
valves must be inclined to prevent water pockets and
must also be frost-free.
■Install shut off valves as close to the heat pump as
possible so that the flow to individual cooling mod-
ules can be shut off. Extra safety valves between the
particle filter and shut off valves (according the out-
line diagram) are required.
■Fit the supplied particle filter on the incoming pipe.
■Fit the supplied non-return valves on the outgoing
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
NIBE™ F1345Chapter 4 | Pipe connections16

Connecting external brine pump (40 and
60kW only)
Install the brine pump (GP16) according to the circula-
tion pump manual for connection of incoming brine
(EP14-XL6) and (EP15-XL6) between the heat pump
and shut off valve (see image).
40kW24-30kW 60kW
EP15
EP14
GP16
NOTE
Insulate the brine pump against condensation
(do not cover the drainage hole).
Expansion vessel
The brine circuit must be supplied with a pressure ex-
pansion vessel.
The brine side must be pressurised to at least 0.05 MPa
(0.5 bar).
The pressure expansion vessel should be dimensioned
as set out in the following diagram, to prevent operat-
ing disturbances. The diagrams cover the temperature
range from 10 °C to +20 °C at a pre-pressure of 0.05
MPa (0.5 bar) and the safety valve's opening pressure
of 0.3 MPa (3.0 bar).
Ethanol 28% (volume percent)
In installations with ethanol (28% volume percent) as
the brine the pressure expansion vessel must be dimen-
sioned according to the following diagram.
30
0
40
50
60
0
10
20
100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500
Volume pressure expansion vessel (l)
Total volume refrigerant in system (l)
Ethylene glycol 40% (volume percent)
In installations with ethylene glycol (40% volume per-
cent) as the brine the pressure expansion vessel must
be dimensioned according to the following diagram.
0 200 400 600 800 1000 1200 1400 1600 1800 2000
0
10
20
30
40
50
60
70
80
90
100
Volume pressure expansion vessel (l)
Total volume refrigerant in system (l)
17Chapter 4 | Pipe connectionsNIBE™ F1345

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 F1345
and for example radiators, underfloor heating/cooling,
fan convectors etc.
■The pipe connections are on the rear of the heat
pump.
■Install the necessary safety equipment and shut off
valves (installed as close to the heat pump as possible
so that the flow to individual cooling modules can
be shut off).
■Fit the supplied particle filter on the incoming pipe.
■The safety valve must have a maximum 0.6 MPa (6.0
bar) opening pressure and be installed on the heating
medium return. The entire length of the overflow
water pipe from the safety valves must be inclined
to prevent water pockets and must also be frost-free.
■When 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.
■Fit the supplied non-return valves on the outgoing
pipe.
Caution
When necessary you should install venting
valves in the climate system.
Caution
The heat pump is designed so that heating
production can occur with one or two cooling
modules. This however entails different pipe
or electrical installations.
Water heater
Connecting the hot water heater
■Any docked hot water heater must be fitted with
necessary set of valves.
■The mixing valve must be installed if the setting is
changed so that the temperature can exceed 60 °C.
■The setting for hot water is made in menu 5.1.1.
■The safety valve must have a maximum opening
pressure in accordance with the water heater
manual and be installed on the incoming domestic
water line. The entire length of the overflow water
pipe from the safety valves must be inclined to pre-
vent water pockets and must also be frost-free.
Caution
Hot water production is activated in menu 5.2
or in the start guide.
Caution
The heat pump/system is designed so that hot
water production can occur with one or several
cooling modules. This however entails differ-
ent pipe or electrical installations.
Fixed condensing
If F1345 is to work with fixed condensing you must
connect an external flow sensor (BT25) according to
the description on page 23. In addition, you must do
the following menu settings.
Menu setting (local vari-
ations may be required)
Menu
Desired temperature in the
tank.
1.9.3.1 - min. flow line
temp. heating
Desired temperature in the
tank.
5.1.2 - max flow line temper-
ature
intermittent5.1.10 - op. mod heat med
pump
manual4.2 - op. mode
NIBE™ F1345Chapter 4 | Pipe connections18

Docking alternatives
F1345 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 39 for a list of the accessories
that can be used with F1345.
Explanation
External additional heatEB1
External electrical additional heatEB1
Safety valve, heating medium sideFL10
Shut-off valve, heating medium sideQM42 - QM43
Trim valveRN11
Heat pump system (Master)EB100
Temperature sensor, outdoorBT1
Temperature sensor, hot water chargingBT6
Temperature sensor, heating medium
flow, External
BT25
Temperature sensor, heating medium
return, External
BT71
Heat pump, F1345EB100
Cooling module AEP14
Cooling module BEP15
Safety valve, collector sideFL10 - FL11
Safety valve, heating medium sideFL12 - FL13
Particle filterHQ12 - HQ15
Shut-off valve, brine sideQM50 - QM53
Shut-off valve, heating medium sideQM54 - QM57
Reversing valve, heating/hot waterQN10
Non-return valveRM10 - RM13
Heat pump system (Slave 1)EB101
Heat pump, F1345EB101
Cooling module AEP14
Cooling module BEP15
Safety valve, collector sideFL10 - FL11
Safety valve, heating medium sideFL12 - FL13
Particle filterHQ12 - HQ15
Shut-off valve, brine sideQM50 - QM53
Shut-off valve, heating medium sideQM54 - QM57
Non-return valveRM10 - RM13
Hot water circulationQZ1
Accessory cardAA5
Temperature sensor, hot water flowBT70
Mixer valve, hot waterFQ1
Circulation pump, domestic hot water
circulation
GP11
Non-return valveRM23 - RM24
Trim valveRN20 - RN21
Climate system 2EP21
Temperature sensors, heating medium
flow
BT2
Temperature sensors, heating medium
return
BT3
Circulation pumpGP20
Shunt valveQN25
Miscel-
laneous
Accessory cardAA5
Manometer, brine sideBP6
Temperature sensor, hot water flowBT7
Accumulator tank with hot water coilCP10
Expansion vessel, closed, heating medi-
um side
CM1
Expansion vessel, closed, brine sideCM3
Water heaterEB10
Collector, brine sideEP12
Safety valve, heating medium sideFL2
Safety valve, brineFL3
Circulation pump, heating medium ex-
ternal
GP10
Venting valve, brine sideQM21
Shut off valve, brine flowQM33
Shut off valve, brine returnQM34
Non-return valveRM21
Connection, filling brineXL27 - XL28
Designations according to standards 81346-1 and
81346-2.
Caution
The example on the following page is the
outline diagram, which is included in the deliv-
ery of the product shown in "Supplied compon-
ents" page 9.
19Chapter 4 | Pipe connectionsNIBE™ F1345

Example - F1345 24/30 kW docked with electric additional heat and hot water heater (floating
condensing)
-EB100-BT1
P
-BP6
-CM3
-QM21 -FL3
-QM33 -EB100
-QM53 -HQ13
-RM11
-HQ12
-RM10 -FL10
-FL11
-EP15
-EP14
-RM13
-FL13
-FL12
-FL2
-CM1
-EB100-QN10
-CP10
-BT7
-EB100
-BT6
-EB1
-EB1
-FL10
-QM42
-QM43 -RN11 -RM21 -EB100-BT71
-EB100-BT25 -GP10
-EB10
-QM57
-HQ15 -QM56
-RM12 -QM55
-HQ14 -QM54
-QM52
-QM51
-QM50
-XL28
-QM34
-EP12
-XL27
The heat pump (EB100) prioritises charging of hot
water with half the power (cooling module EP14) via
a reversing valve (EB100-QN10). When the water
heater/accumulator tank (CP10) is fully charged,
(EB100-QN10) switches to the heating circuit. When
there is a demand for heat, cooling module (EP15)
starts first. For greater demand, cooling module (EP14)
also starts for heating operation.
Additional heat (EB1) is connected automatically, when
the energy requirement exceeds the heat pump capa-
city.
Example 2 - 2x F1345 40/60 kW docked with electric additional heat and hot water heater
(floating condensing)


-EB100-QN10
-FL3
-BT6
-GP10
-EB100-BT25
-QM43 -EB100-BT71
-EB1
-EB1
-QM42
-FL10
-RM21
-XL28
-XL27
P
-EB100-BT1
-CM3
-BP6 -QM21
-QM33
-QM34
-EP12
-BT7
-EB101
-EB101
-CP10
-EB100
-EB100
-EB100
-EP21
-AA5 -BT2
-QN25
-GP20
-BT3
-RN11
-EP15
-EP14
-FL2
-CM1
-QM50
-RM12 -QM55
-FL10 -FL12 -QM54
-QM57
-HQ14
-HQ15
-FL13
-QM53 -HQ13
-HQ12
-RM13
-QM56
-EP15
-EP14
-QM50
-RM12 -QM55
-FL10 -FL12 -QM54
-QM57
-HQ14
-HQ15
-FL13
-QM53 -RM13
-RM10
-RM10
-QM56
-GP11
-BT70
-QZ-AA5 -QZ1
-RM23
-RN20
-RM24
-RN21
-FQ1
-EB10
-GP16
-HQ13
-HQ12
-GP16
POOL1
The heat pump (EB100) prioritises charging of hot
water with half the power (cooling module EP14) via
a reversing valve (EB100-QN10). When the water
heater/accumulator tank (CP10) is fully charged,
(EB100-QN10) switches to the heating circuit. When
there is a demand for heat, cooling module (EP15)
starts in heat pump (EB101) first. For greater demand,
cooling module (EP14) also starts in (EB101) for heating
operation.
Additional heat (EB1) is connected automatically, when
the energy requirement exceeds the heat pump capa-
city.
If the water heater/accumulator tank (CP10) is fitted
with a peak heater (EB10) plus accessories board (AA5),
the "temporary lux" function can be used.
NIBE™ F1345Chapter 4 | Pipe connections20