Nibe F2120 Series User guide

Installer manual
Air/water heat pump
NIBE F2120
IHB EN 2214-1
631982

41 Important information
4Safety information
4Symbols
4Marking
5Serial number
6Inspection of the installation
7
Compatible indoor modules (VVM) and control
modules (SMO)
7Indoor module
7Control module
82 Delivery and handling
8Transport
9Assembly
11Compressor heater
11Condensation
12Supplied components
13Removing the side panel and top panel
143 The heat pump design
14General
17Distribution box
18Sensor placement
194 Pipe connections
19General
19Symbol key
19Pipe coupling heating medium circuit
215 Electrical connections
21General
21Accessibility, electrical connection
22Connections
276 Commissioning and adjusting
27Preparations
27Balance temperature
27Filling and venting
27Start-up and inspection
28Post adjustment and venting
29Adjustment, charge flow
307 Control
30General
30LED status
30Master control
31Control conditions
32Control - Heat pump EB101
348 Service
34Temperature sensor data
359 Disturbances in comfort
35Troubleshooting
37Alarm list
3910 Accessories
4011 Technical data
40Dimensions
41Sound levels
42Technical specifications
45Energy labelling
48Electrical circuit diagram
52Item register
55Contact information
3Table of ContentsNIBE F2120
Table of Contents

Safety information
This manual describes installation and service procedures
for implementation by specialists.
The manual must be left with the customer.
This appliance can be used by children
aged from 8 years and above and per-
sons with reduced physical, sensory or
mental capabilities or lack of experience
and knowledge if they have been given
supervision or instruction concerning use
of the appliance in a safe way and under-
stand the hazards involved. Children shall
not play with the appliance. Cleaning and
user maintenance shall not be made by
children without supervision.
This is an original manual. It may not be
translated without the approval of NIBE.
Rights to make any design or technical
modifications are reserved.
©NIBE 2022.
Electrical installation and wiring must be
carried out in accordance with national
provisions.
F2120 must be installed via an isolator
switch. The cable area has to be dimen-
sioned based on the fuse rating used.
If the supply cable is damaged, only NIBE,
its service representative or similar author-
ised person may replace it to prevent any
danger and damage.
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).
Danger to person or machine.
!
Read the User Manual.
Disconnect the voltage supply before starting work.
Dangerous voltage.
NIBE F2120Chapter 1 | Important information4
Important information

Serial number
The serial number can be found at the top left on the rear
cover and at the bottom on the side.
LEK
Data
Serie.nr.
Art.nr.711453
OUT
IN
Caution
You need the product's (14 digit) serial number for
servicing and support.
5Chapter 1 | Important informationNIBE F2120

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 (see section "Pipe connections")
System flushed
System vented
Particle filter
Shut-off and drain valve
Charge flow set
Electricity (see section "Electrical connections")
Fuses property
Safety breaker
Earth circuit-breaker
Heating cable type/effect
Fuse size, heating cable (F3)
Communication cable connected
F2120 addressed (only when cascade connec-
tion)
Connections
Main voltage
Phase voltage
Miscellaneous
Condensation water pipe
Insulation condensation water pipe, thickness
(if KVR 10 is not used)
NOTE
Check the connections, main voltage and phase voltage before the machine is started, to prevent damage to the
heat pump electronics.
NIBE F2120Chapter 1 | Important information6

Compatible indoor modules (VVM) and control modules (SMO)
SMO S40VVM S320
XXF2120-16
XF2120-20
SMO 40SMO 20VVM 500VVM 310
XXXXF2120-16
XXXF2120-20
Indoor module
VVM S320
Enamel, 3x400 V
Part no. 069 206
VVM S320
Stainless steel, 3x230 V
Part no. 069 201
VVM S320
Stainless steel, 3x400 V
Part no. 069 196
VVM 310
Stainless steel, 3x400 V
With integrated EMK 310
Part no. 069 084
VVM 310
Stainless steel, 3x400 V
Part no. 069 430
VVM 500
Stainless steel, 3x400 V
Part no. 069 400
Control module
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 F2120

Transport
F2120 must be transported and stored vertically.
NOTE
Ensure that the heat pump cannot fall over during
transport.
Check that the heat pump has not been damaged during
transport.
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 F2120 to the set up location.
NOTE
The centre of gravity is offset to one side (see print
on the packaging).
LEK
C:a 180 kg
Approx. 180 kg
If F2120 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 F2120 is lifted with a
crane, the packaging must be untouched.
If a crane vehicle cannot be used the F2120 can be transpor-
ted on an extended sack truck. F2120 must be taken from
its heaviest side and two people are required to lift F2120.
LIFT FROM THE PALLET TO FINAL POSITIONING
Before lifting remove the packaging and the securing strap
to the pallet.
Place lifting straps around each machine foot. Lifting from
the pallet to the base requires four persons, one for each
lifting strap.
SCRAPPING
When scrapping, the product is removed in reverse order.
Lift by the bottom panel instead of a pallet!
NIBE F2120Chapter 2 | Delivery and handling8
Delivery and handling

Assembly
•Place F2120 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. The base should
be at least 70 mm tall.
•F2120 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.
•F2120 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
F2120 protected from wind / against the evaporator.
•A small amount of water may drip from the drainage hole
under F2120. Make sure that this water can run away by
selecting a suitable material underneath F2120 (see sec-
tion "Condensation").
•Care must be exercised so that the heat pump is not
scratched during installation.
LEK
F2120
min 300 mm
LEK
F2120
LEK
min
70 mm
Do not place F2120 directly on the lawn or other non solid
surface.
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 F2120

INSTALLATION AREA
The distance between F2120 and the house wall must be at least 350 mm, but not more than 500 mm in locations that are
exposed to the wind. The free space above F2120 must be at least 1,000 mm. The free space in front must be at least
1,000 mm for any future servicing.
350 mm
Fritt utrymme bakom
Fritt utrymme framför
dock 1000 mm för ev. framtida service
Min. avstånd
vid användning
av flera F2300
600 mm
1000 mm
400 mm
Minimalt
fritt utrymme
600mm
Minimalt
fritt utrymme
Minimum free
space Minimum free space
Minimum distance during use
of several F2120
600 mm
600 mm
At least 1,000
mm
Free space behind*
350 – 500 mm
400 mm
Free space in front for any future servicing
* The space behind must not exceed 500 mm in locations that are exposed to the wind.
NIBE F2120Chapter 2 | Delivery and handling10

Compressor heater
F2120 is equipped with two compressor heaters that heat
the compressor before start-up and when the compressor
is cold.
The compressor heater (EB10) must have been active for at
least 3 hours before compressor operation can be initiated.
This is done by connecting control voltage. F2120 permits
compressor start after the compressor has been warmed
up. This can take up to 3 hours.
NOTE
The compressor heater must have been active for
approx. 3 hours before the first start, see section
“Start-up and inspection”.
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) that col-
lects in the trough should be routed away by a pipe to an
appropriate drain, it is recommended that the shortest
outdoor stretch 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.
To ensure the function, the accessory KVR 11
should be used.
•Route the pipe downward from the heat pump.
•The outlet of the condensation water pipe must be at a
depth that is frost free or alternatively indoors (with reser-
vation for local ordinances and regulations).
•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.
DRAINAGE OF CONDENSATION
Stone caisson
LEK
Frostfritt djup
F2120
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.
Drain indoors
Water seal
The condensation water is lead to an indoor drain (subject
to local rules and regulations).
When routing pipes indoors, condensation water pipes must
be insulated against condensation.
Route the pipe downward from the heat pump.
The condensation water pipe must have a water seal to
prevent air circulation in the pipe.
11Chapter 2 | Delivery and handlingNIBE F2120

Gutter drainage
LEK
F2120
Frostfritt
djup
Frost free
depth
Water seal
Route the pipe 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
F2120-16, F2120-20
Filterball (G1 1/4").
LEK
LEK
2 x flexible pipes (DN25, G1 1/4")
with 4 x gaskets.
NIBE F2120Chapter 2 | Delivery and handling12

Removing the side panel and top panel
Unscrew the screws and lift off the top panel.
LEK
13Chapter 2 | Delivery and handlingNIBE F2120

General
F2120 (3x400V)
LEK
GQ1
AA2
UB1
BT12
EP2
XL1
BT3
XL2
HS1
XL21
BT84
QN1
QN4
RM1
QN2
BP11
QN34
BT15
BT14 EB10
QA40 GQ10
BT17
RF2RA1
BP9
BP1
BP2
BP8
XL20
BT81
HQ9
PF1
NIBE F2120Chapter 3 | The heat pump design14
The heat pump design

LEK
Data
Serie.nr.
Art.nr.711453
OUT
IN
PZ4
BT16
PZ1
BT28
EP1
WM5
XL40
XL1
XL2
PZ3
PZ3
15Chapter 3 | The heat pump designNIBE F2120

Pipe connections
Heating medium connection, supply (from F2120)XL1
Heating medium connection, return (to F2120)XL2
Service connection, high pressureXL20
Service connection, low pressureXL21
Connection, drain condensation water troughXL40
HVAC components
Condensation water troughWM5
Sensors etc.
High pressure pressostatBP1
Low pressure pressostatBP2
Low pressure transmitterBP8
High pressure sensorBP9
Pressure sensor, injectionBP11
Temperature sensor, returnBT3
Temperature sensor, condenser supply lineBT12
Temperature sensor, hot gasBT14
Temperature sensor, fluid pipeBT15
Temperature sensor, evaporatorBT16
Temperature sensor, suction gasBT17
Temperature sensor, ambientBT28
Temperature sensor, suction gas evaporatorBT84
Electrical components
Base cardAA2
Compressor heaterEB10
FanGQ1
Signal lamp (LED 201)PF1
InverterQA40
Harmonic filter (3x400V)RA1
EMC filter (3x400V)RF2
Cooling components
EvaporatorEP1
CondenserEP2
CompressorGQ10
Particle filterHQ9
Drying filterHS1
Expansion valveQN1
4-way valveQN2
Bypass valveQN4
Expansion valve, subcoolingQN34
Non-return valveRM1
Miscellaneous
Type platePZ1
Serial numberPZ3
Sign, pipe connectionsPZ4
Cable gland, incoming supplyUB1
Designations according to standard EN 81346-2.
NIBE F2120Chapter 3 | The heat pump design16

Distribution box
LEK
AA2 FC1
X24 F4 F2 F1
S2
S1
X23
X22
X21
X28 X27 F3 X2 X1 X5
X9
S3
Electrical components
Base cardAA2
Terminal block, incoming supplyX1
Terminal block, compressor supplyX2
Terminal block, external control voltageX5
Terminal block, connection KVRX9
Terminal block, Compressor blocking, TariffX21
Terminal block, communicationsX22
Terminal block, communicationsX23
Terminal block, fanX24
Terminal block, expansion valve QN1X27
Fuse, operating 230V~, 4AF1
Fuse, operating 230V~, 4AF2
Fuse for external heating cable, KVR, 250mAF3
Fuse, fan, 4AF4
Miniature circuit-breaker (Replaced with automatic pro-
tection (FB1) when installing accessory KVR 11.)
FC1
EMC filter for inverterRF2
DIP switch, addressing heat pump during multi operationS1
DIP switch, different optionsS2
Reset buttonS3
17Chapter 3 | The heat pump designNIBE F2120

Sensor placement
Sensors
1
1
2 1 2 3 4 1 2 3 4
234 1234
BT28
BT3
BT12
BT16
BT14
BT15
BT17
BT81
BT84
BP8
BP8
BP11
BP9
BP11
BT3
BT28
BT16
BT12
BT14
BT15
BT17
BT81
BT84
BP8
BP9
BP9
BP11
Low pressure transmitterBP8
High pressure sensorBP9
Pressure sensor, injectionBP11
Temperature sensor, returnBT3
Temperature sensor, condenser supply lineBT12
Temperature sensor, hot gasBT14
Temperature sensor, fluid pipeBT15
Temperature sensor, evaporatorBT16
Temperature sensor, suction gasBT17
Temperature sensor, ambientBT28
Temperature sensor, injection, EVI compressorBT81
Temperature sensor, suction gas, evaporatorBT84
NIBE F2120Chapter 3 | The heat pump design18

General
Pipe installation must be carried out in accordance with
current norms and directives.
The pipe dimension should not be less than the recommen-
ded pipe diameter according to the table. However, each
system must be dimensioned individually to manage the
recommended system flows.
MINIMUM SYSTEM FLOWS
The installation must be dimensioned to manage at least
the minimum defrosting flow at 100% pump operation, see
table.
Minimum re-
commended
pipe dimen-
sion (mm)
Minimum re-
commended
pipe dimen-
sion (DN)
Minimum flow
duringdefrost-
ing
(100% pump
speed (l/s)
Air/waterheat
pump
28250.38
F2120-16
(3x400V)
35320.48
F2120-20
(3x400V)
NOTE
An undersized system can result in damage to the
product and lead to malfunctions.
F2120 can only operate up to a return temperature of about
55 °C and an outgoing temperature of about 65 °C from the
heat pump.
F2120 is not equipped with shut-off valves on the heating
medium side, rather these must be installed to facilitate any
future servicing. The return temperature is limited by the
return line sensor.
WATER VOLUMES
Depending on the size of your F2120, an available water
volume is required to prevent short operating times and to
enable defrosting. For the optimum operation of F2120, a
minimum available water volume of 10 litres multiplied by
the size number is recommended. E.g. F2120-12: 10 litres x
12 = 120 litres. This applies individually to heating and cooling
systems.
NOTE
The pipe installation must be flushed out before
the heat pump is connected so debris cannot
damage component parts.
Symbol key
MeaningSymbol
Shut-off valve
Tapping valve
Non-return valve
Circulation pump
Expansion vessel
Filterball
Pressure gauge
Safety valve
Trim valve
Reversing valve/shunt
Control module
Air/water heat pump
Radiator system
Domestic hot water
Water heater
Pipe coupling heating medium
circuit
CONNECTING THE CLIMATE SYSTEM
Install as follows:
•expansion vessel
•pressure gauge
•safety valves
•drain valve
For draining the heat pump during prolonged power fail-
ures.
•non-return valve
Installations with only one heat pump: a non-return valve
is only required in those cases where the placement of
the products in relation to each other can cause self-cir-
culation.
Cascade installations: each heat pump must be fitted with
a non-return valve.
19Chapter 4 | Pipe connectionsNIBE F2120
Pipe connections

•charge pump
•shut-off valve
To facilitate any future servicing.
•enclosed filterball (QZ2)
Installed before connection "heating medium return" (XL2)
(the lower connection) on the vacuum pump.
•reversing valve.
When connecting to the control module, and if the system
is to be able to work with both the climate system and the
hot water heater.
•trim valve
When connecting to control module and hot water heater.
Vent the heat pump by the "heating medium supply" con-
nection (XL1) using the venting nipple on the enclosed flex-
ible hose.
P
XL1
XL2
The image shows connection to the control module.
CHARGE PUMP
The charge pump (not included in the product) is powered
and controlled from the indoor module/control module. It
has a built-in frost protection function and, for this reason,
must not be switched off when there is a risk of freezing.
At temperatures below +2 °C the charge pump runs period-
ically, to prevent the water from freezing in the charge cir-
cuit. The function also protects against excess temperatures
in the charge circuit.
PRESSURE DROP, CONDENSER
F2120
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
00,05 0,1 0,15 0,2 0,25 0,3 0,35 0,4 0,45 0,5 0,55 0,6 0,65 0,7 0,75 0,8 0,85 0,9
Tryckfall
[kPa]
Flöde [l/s]
Tryckfall F2120
Pressure drop
(kPa)
Flow
(l/s)
PIPE INSULATION
LEK
Heat insulation
All outdoor pipes must be insulated with at least 19 mm thick
pipe insulation.
INSTALLING FLEX HOSES
LEK
Data
Serie.nr.
Art.nr
.711453
OUT
IN
XL1
XL2
NIBE F2120Chapter 4 | Pipe connections20