Nibe F2120 Series User manual

UHB EN 1951-5
331398
USER MANUAL
Air/water heat pump
NIBE F2120 8, 12, 16, 20

41 Important information
4Installation data
5Safety information
6Symbols
6Marking
7Serial number
7F2120 – An excellent choice
92 The heat pump – the heart of the house
9Heat pump function
11Control of F2120
12Maintenance of F2120
193 Disturbances in comfort
19Troubleshooting
204 Technical data
215 Glossary
26Item register
27Contact information
3Table of ContentsNIBE F2120
Table of Contents

Installation data
F2120Product
Serial number
Installation date
Installer
Serial number must always be given.
Certification that the installation is carried out according to instructions
in NIBE's installer manual and applicable regulations.
_________________________Signed__________________Date
NIBE F2120Chapter 1 | Important information4
1 Important information

Safety information
This appliance can be used by children aged from 8
years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience and
knowledge if they have been given supervision or in-
struction concerning use of the appliance in a safe way
and understand the hazards involved. The product is
intended for use by experts or trained users in shops,
hotels, light industry, farming and similar environments.
Children must be instructed/supervised to ensure that
they do not play with the appliance.
Do not allow children to clean or maintain the appliance
unsupervised.
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 2020.
F2120 must be installed via an isolator switch. The cable
area has to be dimensioned based on the fuse rating used.
If the supply cable is damaged, only NIBE, its service
representative or similar authorised person may replace
it to prevent any danger and damage.
5Chapter 1 | Important informationNIBE F2120

Symbols
NOTE
This symbol indicates danger to person or machine .
Caution
This symbol indicates important information about what you
should observe when maintaining your installation.
TIP
This symbol indicates tips on how to facilitate using the product.
Marking
The CE mark is obligatory for most products sold in the EU, re-
gardless of where they are made.
CE
Classification of enclosure of electro-technical equipment.IP24
Danger to person or machine.
!
Read the User Manual.
Read the Installer Manual.
NIBE F2120Chapter 1 | Important information6

Serial number
The serial number can be found at the top left on the rear cover and at
the bottom on the side.
F2120
Serial number
Caution
You need the product's (14 digit) serial number for servicing
and support.
F2120 – An excellent choice
F2120 is an air/water heat pump, specially designed for the Nordic cli-
mate, which uses the outdoor air as its energy source.
The heat pump is intended for connection to water borne heating systems
and can both heat hot water effectively at high outdoor temperatures
and give a high output to the heating system at low outdoor temperat-
ures.
If the outdoor temperature drops to a level below the stop temperature
all heating must then occur with external additional heat.
EXCELLENT PROPERTIES FOR F2120:
•Efficient speed-controlled scroll compressor
Efficient speed-controlled scroll compressor that operates at temper-
atures down to -25 °C.
7Chapter 1 | Important informationNIBE F2120

•Intelligent control
F2120 connected to intelligent control for optimum control of the heat
pump.
•Fan
F2120 has automatic capacity regulation of the fan.
•Long service life
The material has been chosen for a long service life and is designed
to withstand the Nordic outdoor conditions.
•Many possibilities
F2120 is intended for combination with NIBE indoor module
VVM / NIBE control module SMO. There is a wide range of system
solutions and accessories for NIBE's indoor modules and control
modules.
•Silent operation
F2120 has a silent operation function that allows scheduling when
F2120 must operate at an even quieter noise level.
NIBE F2120Chapter 1 | Important information8

Heat pump function
Värmebärare
Köldmedium
Uteluft
Förångare
Kondensor 80 °C
2 °C-3 °C
5 °C0 °C
55 °C45 °C
Expansionsventil Kompressor
A
D
F
H
I
B
C
E
G
Heating medium
Värmebärare
Köldmedium
Köldbärare
Värmekälla
Förångare
Kondensor 100 °C
0 °C-3 °C
-2 °C
50 °C40 °C
Expansionsventil Kompressor
A
D
F
H
B
C
E
G
Brine
Refrigerant
Evaporator
Condenser
Expansion valve Compressor
Heat source 1
2
3
The temperatures are only examples and may vary between different installations and
time of year.
9Chapter 2 | The heat pump – the heart of the houseNIBE F2120
2 The heat pump – the heart of
the house

An air/water heat pump can use the outdoor air to heat up a home. The
conversion of the outdoor air’s energy to residential heating occurs in
three different circuits. In the brine circuit (1), free heat energy is retrieved
from the surroundings and transported to the heat pump. The heat pump
increases the retrieved heat’s low temperature to a high temperature in
the refrigerant circuit, (2). The heat is distributed around the building by
the heating medium circuit (3).
Outdoor air
The outdoor air is sucked into the heat pump.
A
The fan then routes the air to the heat pump’s evaporator. Here, the air
releases the heating energy to the refrigerant and the air's temperature
drops. The cold air is then blown out of the heat pump.
B
Refrigerant circuit
A gas circulates in a closed system in the heat pump, a refrigerant, which
also passes the evaporator. The refrigerant has a very low boiling point.
In the evaporator the refrigerant receives the heat energy from the out-
door air and starts to boil.
C
The gas that is produced during boiling is routed into an electrically
powered compressor. When the gas is compressed, the pressure in-
creases and the gas's temperature increases considerably, from 5 °C to
approx. 80 °C.
D
From the compressor, gas is forced into a heat exchanger, condenser,
where it releases heat energy to the heating system in the house,
whereupon the gas is cooled and condenses to a liquid form again.
E
As the pressure is still high, the refrigerant can pass an expansion valve,
where the pressure drops so that the refrigerant returns to its original
temperature. The refrigerant has now completed a full cycle. It is routed
to the evaporator again and the process is repeated.
F
Heat medium circuit
The heat energy that the refrigerant produces in the condenser is re-
trieved by the climate system's water, heating medium, which is heated
to 55 °C (supply temperature).
G
The heating medium circulates in a closed system and transports the
heated water's heating energy to the house water heater and radiat-
ors/heating coils.
H
The temperatures are only examples and may vary between different installations and
time of year.
NIBE F2120Chapter 2 | The heat pump – the heart of the house10

Control of F2120
F2120 is controlled in various ways depending on your system. You
control the heat pump via your indoor module (VVM) or control module
(SMO) See the relevant manual for more information.
During installation, the installation engineer adjusts the necessary settings
for the heat pump in the indoor module or control module, so that the
heat pump works optimally in your system.
11Chapter 2 | The heat pump – the heart of the houseNIBE F2120

Maintenance of F2120
REGULAR CHECKS
When your heat pump is located outdoors some external maintenance
is required.
NOTE
Insufficient maintenance can cause serious damage to F2120,
which is not covered by the guarantee.
Checking grilles and bottom panel on F2120
Regularly check throughout the year that the grille is not clogged by
leaves, snow or anything else.
You should be vigilant during windy conditions and/or in the event of
snow as the grille can become blocked.
Regularly check that condensation is routed away correctly through the
condensation pipe. Ask your installer for assistance if required.
NIBE F2120Chapter 2 | The heat pump – the heart of the house12

Keep free of snow and ice
F2120 F2120
F2120 F2120
LEK
LEK
LEK
LEK
Prevent snow from building up and covering the grilles and drain holes on F2120.
F2120 F2120
F2120 F2120
LEK
LEK
LEK
LEK
Keep free of snow and/or ice.
13Chapter 2 | The heat pump – the heart of the houseNIBE F2120

Cleaning the outer casing
If necessary the outer casing can be cleaned using a damp cloth.
Care must be exercised so that the heat pump is not scratched when
cleaning. Avoid spraying water into the grilles or the sides so that water
penetrates into F2120. Prevent F2120 coming into contact with alkaline
cleaning agents.
IN EVENT OF LONG POWER CUTS
In the event of prolonged power failures it is recommended that the part
of the heating system located outdoors is drained. Your installer has in-
stalled a shut off and drain valve to facilitate this. Call and ask your in-
staller if you are unsure.
SILENT MODE
The heat pump can be set to "silent mode", which reduces the heat
pump's noise level. The function is useful when F2120 must be placed
in noise sensitive areas. The function should only be used for limited
periods as F2120 may not reach its dimensioned output.
NIBE F2120Chapter 2 | The heat pump – the heart of the house14

UPDATING THE SOFTWARE IN F2120 VIA THE CONTROL
MODULE OR INDOOR MODULE
The latest software for both F2120 and the indoor module/control module
can be found at nibeuplink.com.
Click the "Software" tab to download the latest software for your install-
ation.
Save the files to a USB memory. Update F2120 and the indoor mod-
ule/control module at the same time.
INDOOR CLIMATE
MY SYSTEM INFO
HOT WATER
USB
update firmware
USB 7
logging
manage settings
In menu 7.1 on the indoor module/control module, the following software
updates can be performed:
• Software for the indoor module (VVM) or control module (SMO)
• Software for outdoor module F2120
15Chapter 2 | The heat pump – the heart of the houseNIBE F2120

Caution
Software for the indoor/control module must be updated when
software for outdoor module F2120 is updated.
Caution
It can take up to 30 minutes to update the software for F2120.
Caution
Restart the indoor module/control module to see the correct
version number of the software.
For cascade installation, together with SMO 40, all F2120 will be updated
in the address order. Deactivate the F2120 that are not to be updated.
More detailed information about updating software via USB can be found
in the installer manual for your indoor module or control module.
SAVING TIPS
Your heat pump installation produces heat and cooling and/or hot water.
This occurs via the control settings you made.
Factors that affect the energy consumption are, for example, indoor
temperature, hot water consumption, the insulation level of the house
and whether the house has many large window surfaces. The position
of the house, e.g. wind exposure is also an affecting factor.
Also remember:
• Open the thermostat valves completely (except in the rooms that are
to be kept cooler for various reasons, e.g. bedrooms). The thermostats
slow the flow in the heating system, which the heat pump wants to
compensate with increased temperatures. It then works harder and
consumes more electrical energy.
• Reduce or adjust the settings for heating in any external control sys-
tems.
NIBE F2120Chapter 2 | The heat pump – the heart of the house16

Power consumption
Energiförbrukning fördelat över året
jan feb mars april maj juni juli aug sep okt nov dec
Månad
% av årsförbrukningen
0%
5%
10%
15%
20%
25%
The air/water heat pump's energy distribution spread across the year
Month
Jan Feb Mar April May June July Aug Sep Oct Nov Dec
% of annual
consumption
Increasing the indoor temperature one degree increases power consump-
tion by approx. 5%.
Domestic electricity
In the past it has been calculated that an average Swedish household
has an approximate annual consumption of 5000 kWh domestic electri-
city/year. In today's society it is usually between 6000-12000 kWh/year.
Appr.
ann. con-
sump
(kWh)
Normal Output (W)Equipment
StandbyOpera-
tion
3802200TV (Operation: 5 h/day, Standby: 19 h/day)
901011Digital box (Operation: 5 h/day, Standby:
19 h/day)
45515DVD (Operation: 2 h/week)
672160TV games console (Operation: 6 h/week)
50140Radio/stereo (Operation: 3 h/day)
1202100Computer incl. screen (Operation: 3 h/day,
standby 21 h/day)
175-60Bulb (Operation 8 h/day)
58-20Spot light, Halogen (Operation 8 h/day)
165-100Cooling (Operation: 24 h/day)
17Chapter 2 | The heat pump – the heart of the houseNIBE F2120

Appr.
ann. con-
sump
(kWh)
Normal Output (W)Equipment
380-120Freezer (Operation: 24 h/day)
365-1500Stove, hob (Operation: 40 min/day)
310-3000Stove, oven (Operation: 2 h/week)
730-2000Dishwasher, cold water connection (Oper-
ation 1 time/day)
730-2000Washing machine (Operation: 1 times/day)
730-2000Tumble drier (Operation: 1 times/day)
100-1000Vacuum cleaner (Operation: 2 h/week)
50-400Engine block heater (Operation: 1 h/day,
4 months a year)
100-800Passenger compartment heater (Opera-
tion: 1 h/day, 4 months a year)
These values are approximate example values.
Example: A family with 2 children live in a house with 1 TVs, 1 digital
boxes, 1 DVD players, 1 TV games console, 2 computers, 3 stereos, 2
bulbs in the WC, 2 bulbs in the bathroom, 4 bulbs in the kitchen, 3 bulbs
outside, a washing machine, tumble drier, dishwasher, fridge, freezer,
oven, vacuum cleaner, engine block heater = 6240 kWh domestic elec-
tricity/year
Energy meter
Check the accommodation's energy meter regularly, preferably once a
month. This will indicate any changes in power consumption.
Newly built houses usually have twin energy meters, use the difference
to calculate your domestic electricity.
New builds
Newly built houses undergo a drying out process for a year. The house
can then consume significantly more energy than it would thereafter.
After 1-2 years the heating curve should be adjusted again, as well as
the offset heating curve and the building's thermostat valves, because
the heating system, as a rule, requires a lower temperature once the
drying process is complete.
NIBE F2120Chapter 2 | The heat pump – the heart of the house18

Troubleshooting
NOTE
Work behind covers secured by screws may only be carried
out by, or under the supervision of, a qualified installation engin-
eer.
TIP
F2120 communicates all alarms to the indoor module/control
module (VVM / SMO).
BASIC ACTIONS
• Make sure that the air flow to F2120 is not blocked by foreign objects.
• Check that F2120 does not have any external damage.
ICE BUILD-UP IN THE FAN, GRILLE AND/OR FAN CONE
ON F2120
Contact your installer!
WATER BELOW F2120 (LARGER AMOUNT)
Check that the water drainage via the condensation pipe (KVR 10) is
working.
19Chapter 3 | Disturbances in comfortNIBE F2120
3 Disturbances in comfort

Detailed technical specifications for this product can be found in the in-
stallation manual (nibe.eu).
NIBE F2120Chapter 4 | Technical data20
4 Technical data