Nibe F2050 User guide

Installer manual
Air/water heat pump
NIBE F2050 UK 1x230V
IHB EN 2220-1
631412

41 Important information
4Safety information
4Symbols
4Marking
4Serial number
5Country specific information
6Inspection of the installation
7
Compatible indoor modules (VVM) and control
modules (SMO)
7Indoor modules
7Control modules
82 Delivery and handling
8Transport
8Assembly
10Condensation
11Supplied components
12Dismantling panels
133 The heat pump design
13General
17Electrical connection
19Sensor placement
224 Pipe connections
22General
23Symbol key
23Pipe coupling heating medium circuit
24Installation alternative
255 Electrical connections
25General
25Accessibility, electrical connection
26Connections
316 Commissioning and adjusting
31Preparations
31Filling and venting
31Compressor heater
32Start-up and inspection
32Readjusting, heating medium side
32Adjustment, charge flow
337 Control – Heat pump EB101
33S-series – VVM S / SMO S
34F-series – VVM / SMO
358 Service
35Temperature sensor data
369 Servicing and maintenance
36Important
36General inspection
36Heating System
3710 Disturbances in comfort
37Troubleshooting
38Alarm list
4011 Accessories
4112 Technical data
41Dimensions
42Sound levels
43Technical specifications
46Energy labelling
49Electrical circuit diagram
53Item register
59Contact information
3Table of ContentsNIBE F2050
Table of Contents

Safety information
This manual describes installation and service procedures
for implementation by specialists.
The manual must be left with the customer.
Symbols
Explanation of symbols that may be present in this manual.
NOTE
This symbol indicates danger to person or machine.
Caution
This symbol indicates important information about
what you should consider when installing or servi-
cing the installation.
TIP
This symbol indicates tips on how to facilitate us-
ing the product.
Marking
Explanation of symbols that may be present on the product’s
label(s).
Fire hazard!
Read the User Manual.
Read the User Manual.
Read the Installer Manual.
Serial number
The serial number for F2050 can be found on the side of the
foot.
DATA
Caution
You need the product's (14 digit) serial number for
servicing and support.
NIBE F2050Chapter 1 | Important information4
Important information

Country specific information
UNITED KINGDOM
This installation is subject to building regulation approval,
notify the local Authority of intention to install.
Use only manufacturer’s recommended replacement parts.
For more information see nibe.co.uk.
Benchmark places responsibilities on both manufacturers
and installers. The purpose is to ensure that customers are
provided with the correct equipment for their needs, that it
is installed, commissioned and serviced in accordance with
the manufacturers instructions by competent persons and
that it meets the requirements of the appropriate Building
Regulations. The Benchmark Checklist can be used to
demonstrate compliance with Building Regulations and
should be provided to the customer for future reference.
Installers are required to carry out the installation, commis-
sioning and servicing work in accordance with the Bench-
mark Code of practice which is available from the Heating
and Hotwater Industry Council who manage and promote
the Scheme. Visit centralheating.co.uk for information.
Warranty and insurance information
Thank you for installing a new NIBE heat pump in your home.
NIBE heat pumps are manufactured in Sweden to the very
highest standard so we are pleased to offer our customers
a comprehensive guarantee.
The product is guaranteed for 24 months for parts and la-
bour from the date of installation or 33 months from the
date of manufacture, whichever is the shorter.
The NIBE guarantee is based on the unit being installed and
commissioned by a NIBE accredited installer, serviced every
year and the Benchmark documents completed. Where this
condition is not met, any chargeable spare parts or compon-
ents issued within the applicable guarantee period still be-
nefit from a 12 month warranty from the date of issue by
the manufacturer.
We recommend the installer completes and returns as soon
as possible, your guarantee registration card or completes
the guarantee form on the NIBE website www.nibe.co.uk
Electrical Supply
The heat pump must be permanently connected to a 230 V
~ 50 Hz supply.
All system components shall be of an approved type and all
wiring to current I.E.E wiring regulations.
External wiring must be correctly earthed, polarised and in
accordance with the relevant standards: Currently this is
BS 7671.
Heating System
The installation of the heat pump should follow best practice
as covered in the following:
BS 5449 Forced circulation hot water central heating sys-
tems for domestic premises.
BS 15450 Heating systems in buildings – Design of heat
pump heating systems.
5Chapter 1 | Important informationNIBE F2050

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
✔
Heating medium (page 23)
System flushed
System vented
Particle filter
Shut-off and drain valve
Charge flow set
Electricity (page 25)
Fuses property
Safety breaker
Earth circuit-breaker
Heating cable type/effect
Fuse size, heating cable (F3)
Communication cable connected
F2050 addressed (only when cascade connec-
tion)
Connections
Main voltage
Phase voltage
When installing F2050-6, check that the
software version of the indoor module/control
module is at least v8320.
Miscellaneous
Warranty
Benchmark checklist
NIBE F2050Chapter 1 | Important information6

Compatible indoor modules (VVM) and control modules (SMO)
SMO S40VVM S320
XXF2050-6
XXF2050-10
SMO 40SMO 20VVM 225
XXXF2050-6
XXXF2050-10
Indoor modules
VVM S320
Stainless steel, 1x230 V
With T&P valve
Part no. 069 199
VVM 225
Stainless steel, 1x230 V
With T&P valve
Part no. 069 232
Control modules
SMO S40
Control module
Part no. 067 654
SMO 20
Control module
Part no. 067 224
SMO 40
Control module
Part no. 067 225
7Chapter 1 | Important informationNIBE F2050

Transport
F2050 must be transported and stored vertically.
NOTE
Ensure that the heat pump cannot fall over during
transport.
Check that F2050 has not been damaged during transport.
LIFT FROM THE STREET TO THE SET UP
LOCATION
If the surface allows, the easiest method is to use a pallet
truck to move the heat pump to the installation area.
If the heat pump needs to be transported across soft ground,
such as a lawn, we recommend using a crane truck that can
lift it to the installation location. When the heat pump is lifted
with a crane, the packaging must be intact.
If a crane truck cannot be used, the heat pump can be
transported on an extended sack truck. The heat pump must
be taken hold of from its heaviest side and two people are
required to lift it.
LIFT FROM THE PALLET TO FINAL POSITIONING
Before lifting remove the packaging and the securing strap
to the pallet.
Place lifting straps around each foot. It is recommended
that two people perform the lift from the pallet to the base.
SCRAPPING
When scrapping, remove the heat pump in reverse order. In
this case, lift by the base plate rather than the pallet!
Assembly
•Place the heat pump in a suitable location outdoors to
prevent any risk of the refrigerant flowing in through
ventilation openings, doors or similar openings in the event
of a leak. It must also not constitute a hazard to people or
property in any other way.
•If the heat pump is placed in a location where any refriger-
ant leak could accumulate, for example below ground level
(in a dip or low-lying recess), the installation must satisfy
the same requirements that apply for gas detection and
the ventilation of engineering rooms. Requirements regard-
ing sources of ignition must be applied where appropriate.
•Place F2050 outdoors on a solid level base that can take
the weight, preferably a concrete foundation. If concrete
slabs are used they must rest on asphalt or shingle.
•The lower edge of the evaporator must not be lower than
the level of the average local snow depth, or at least 300
mm above ground level. The base should be at least 70
mm tall.
•F2050 should not be positioned next to noise sensitive
walls, for example, next to a bedroom.
•Also ensure that the placement does not inconvenience
the neighbours.
•F2050 must not be placed so that recirculation of the
outdoor air is possible. Recirculation entails reduced power
and impaired efficiency.
•The evaporator must be sheltered from direct wind / ,
which negatively affects the defrosting function. Place
F2050 protected from wind / against the evaporator.
•Large amounts of condensation, as well as melt water
from defrosting, may be produced. Condensation must
be led off to a drain or similar (see section “Condensation
water").
•Care must be exercised so that the heat pump is not
scratched during installation.
LEK
LEK
LEK
Cirka 1 m
LEK
LEK
LEK
Cirka 1 m
min 300 mm
Min. 300 mm
Do not place F2050 directly on the lawn or other non solid
surface.
NIBE F2050Chapter 2 | Delivery and handling8
Delivery and handling

If there is a risk of snow slip from roof, a protective roof or
cover must be erected to protect the heat pump, pipes and
wiring.
9Chapter 2 | Delivery and handlingNIBE F2050

INSTALLATION AREA
The distance between F2050 and the house wall must be at least 150 mm. The free space above F2050 must be at least
1,000 mm. The free space in front must be at least 1,000 mm for future servicing.
50
255
Ställbar 40-50 955
243
512
110
395
265
50
452 1075
1145
108
Ø40*
14
85
150 mm
Fritt utrymme bakom
Min. avstånd
vid användning
av flera F2040
600 mm
3000 mm
400 mm 600 mm
Minimalt
fritt utrymme
Minimalt
fritt utrymme
Fritt utrymme
framför
Free space behind
Min. distance when using
several F2050
Free space Free space
Free space in
front
1000 mm
Condensation
The condensate drain pan collects and leads away the con-
densation water.
NOTE
It is important to the heat pump function that
condensation water is led away and that the drain
for the condensation water run off is not posi-
tioned so that it can cause damage to the house.
Condensation run-off should be checked regularly,
especially during the autumn. Clean if necessary.
•The condensation water (up to 50 litres / 24 hrs) must be
routed away by a pipe to an appropriate drain, it is recom-
mended that the shortest outdoor length possible is used.
•The section of the pipe that can be affected by frost must
be heated by the heating cable to prevent freezing.
TIP
Pipe with heating cable for draining the condens-
ation water trough is not included.
•Route the pipe downward from the heat pump.
•The outlet of the condensation water pipe must be at frost
free depth.
•Use a water trap for installations where air circulation may
occur in the condensation water pipe.
•The insulation must seal against the bottom of the con-
densation water trough.
DRAIN PAN HEATER, CONTROL
The drain pan heater is supplied with power when one of
the following conditions is met:
1. The compressor has been in operation for at least 30
minutes after last start.
2. The ambient temperature is lower than 1 °C.
DRAINAGE OF CONDENSATION
Stone caisson
LEK
Frostfritt djup
Frost proof
depth
If the house has a cellar the stone caisson must be posi-
tioned so that condensation water does not affect the house.
Otherwise the stone caisson can be positioned directly under
the heat pump.
NIBE F2050Chapter 2 | Delivery and handling10

Gutter drainage
Frostfritt
djup
LEK
Frost proof
depth
Water seal
Route the pipe sloping downward from the heat pump. The
condensation water pipe must have a water seal to prevent
air circulation in the pipe.
Caution
If none of the recommended alternatives is used
good lead off of condensation water must be as-
sured.
Supplied components
1 x communication cable
1 x filterball (G1") (QZ2)
LEK
LEK
2 x flexible pipes (DN25, G1")
with 4 x gaskets
11Chapter 2 | Delivery and handlingNIBE F2050

Dismantling panels
DISMANTLING TOP PANEL
F2050-6
UN
F2050-10
LEK
REMOVING THE FRONT PANEL
F2050-6
UN
F2050-10
LEK
NIBE F2050Chapter 2 | Delivery and handling12

General
F2050-6
UN
GQ1
DH
EP1
EB11
CM
20S
63H1
LPT
SM2
SM1
PF3
GQ10
QN1
QM36
QM37
CH
EB10
BT17
FM01
HS1
BT15
QN2
AA23
BT12
BP1
X1
BP2
BP4
BT3
QN3
EP2
UB3
TBFPWB1
RF2
RF3
DATA
UB3
W1
UB1
UB2
XL1
XL2
DATA
PF3
BT28
Tho-R1
Tho-R1
PF1
BT16
Tho-A
BT16
13Chapter 3 | The heat pump designNIBE F2050
The heat pump design

Tho-A
CM
SM2
QN1
CH
EB10
GQ10
20S
63H1
LPT
SM1
Tho-SBT17
BT15
QN2
BT12
QN1
BP2
BP4
BT3
QN3
BT28
HS1
UB3
EP2
QM36
QM37
Tho-DBT14
NIBE F2050Chapter 3 | The heat pump design14

F2050-10
LEK
GQ1
DH
UB3
EP1
EB11
CM
20S
63H1
LPT
SM2
SM1
FM01
PWB2 PWB3 PWB1
BT12
BT15
BP4
QN2
BT3
PF3
HS1
EP2
GQ10 QN1
BP2
QM36
QM37
BP1
QN3
CH
EB10
AA23
X1
F TBBT14 Tho-D
Tho-SBT17
LEK
DATA
XL2
UB1
UB2
W1
XL1
UB3
LEK
DATA
PF1PF3
Tho-A
BT28
Tho-R1 Tho-R2
BT16
15Chapter 3 | The heat pump designNIBE F2050

Pipe connections
Heating medium connection, supply (from F2050)XL1
Heating medium connection, return (to F2050)XL2
Sensors etc.
High pressure pressostatBP1 (63H1)
Low pressure transmitterBP2 (LPT)
High pressure sensorBP4
Temperature sensor, returnBT3
Temperature sensor, condenser supply lineBT12
Temperature sensor, hot gasBT14 (Tho-
D)
Temperature sensor, fluid pipeBT15
Temperature sensor 1, evaporatorBT16 (Tho-
R1)
Temperature sensor, suction gasBT17 (Tho-
S)
Temperature sensor, ambientBT28 (Tho-
A)
Temperature sensor 2, evaporatorTho-R2
Electrical components
Communication boardAA23
Fuse for external heating cableAA23-F3
DIP switch, addressing of outdoor moduleAA23-S3
Terminal block, KVRAA23-X1
Terminal block, communication from indoor moduleAA23-X4
Terminal block, communication outdoor moduleAA23-X100
Compressor heaterEB10 (CH)
Drip tray heaterEB11 (DH)
Main fuse compressor unitF
FanGQ1 (FM01)
FanGQ2 (FM02)
Control board(PWB1)
Inverter board(PWB2)
Filter board(PWB3)
EMC filter for inverterRF2
EMC filter for incoming supplyRF3
Terminal block, incoming supply and communication
with board AA23
(TB)
Cooling components
EvaporatorEP1
CondenserEP2
CompressorGQ10 (CM)
Drying filterHS1
Shut-off valve, liquid lineQM36
Shut-off valve, gas lineQM37
Expansion valve, heatingQN1 (SM2)
4-way valveQN2 (20S)
Expansion valve, coolingQN3 (SM1)
Miscellaneous
Type platePZ1
Serial numberPZ3
Cable gland, incoming supplyUB1
Cable grommet, communicationUB2
Cable gland, heating cable (EB14)UB3
Cable, incoming supplyW1
Designations according to standard EN 81346-2.
Designations within brackets according to the supplier’s standard.
NIBE F2050Chapter 3 | The heat pump design16

Electrical connection
F2050-6
LEK
AA23
AA23-X100
AA23-S3
AA23-X4
AA23-F3
AA23-X1
RF2
UN
PWB1
PWB2
PWB3
TB
F2050-10
LEK
AA23
AA23-X4
AA23-S3
AA23-X100
AA23-X1
AA23-F3
LEK
PWB2
PWB1
PWB3 TB
17Chapter 3 | The heat pump designNIBE F2050

Electrical components
Communication boardAA23
Fuse for external heating cable (250 mA), max 45 W.AA23-
F3
DIP switch, addressing of outdoor unitAA23-
S3
Terminal block, KVRAA23-X1
Terminal block, communication from indoor moduleAA23-
X4
Communication with TBAA23-
X100
Compressor heaterEB10
(CH)
Drip tray heaterEB11
(DH)
Main fuse compressor unitF
FanGQ1
(FM01)
FanGQ2
(FM02)
Control board(PWB1)
Inverter board(PWB2)
Filter board(PWB3)
EMC filter for inverterRF2
EMC filter for incoming supplyRF3
Terminal block, incoming supply and communication with
board AA23
(TB)
Designations according to standard EN 81346-2.
Designations within brackets according to the supplier’s standard.
NIBE F2050Chapter 3 | The heat pump design18

Sensor placement
CONNECTION TO BOARD (PWB1)
F2050-6
UN
QN1
BT16 BT14 BT28
EEV
Tho-R1 Tho-D Tho-A
QN2 EB11
20S DH
GQ1
FM01
19Chapter 3 | The heat pump designNIBE F2050

F2050-10
LEK
EB11
EB10 GQ1
PWB1
BP1 QN2 QN3 QN1 BP2
SM1 SM2 LPTFM01DH
20S
CH
63H1
CONNECTION TO BOARD (AA23)
BP4 BT15 BT12 BT3
AA23-S3
NIBE F2050Chapter 3 | The heat pump design20