Nibe F1126 User manual

UHB EN 2008-3
231712
USER MANUAL
Ground source heat pump
NIBE F1126

Quick guide
Navigation
Ok button (confirm/select)
Back button (back/undo/exit)
Control knob (move/increase/reduce)
A detailed explanation of the button functions can be found on page 10.
How to scroll through menus and make different settings is described on
page 14.
Set the indoor climate
2X
INDOOR CLIMATE
HEAT PUMP
INFO
HOT WATER
temperature1.1.1
The mode for setting the indoor temperature is accessed by pressing the OK
button twice, when in the start mode in the main menu. Read more about
the settings on page 23.
Increase hot water volume
2X
1X
INDOOR CLIMATE
HEAT PUMP
INFO
HOT WATER
off
temporary lux2.1
3 hrs
6 hrs
12 hrs
one time increase
To increase the amount of hot water temporarily (if a water heater is installed
for your F1126), first turn the control knob to select menu 2 (water droplet)
and then press the OK button twice. Read more about the settings on page
temporary lux.
In event of disturbances in comfort
If you experience a disturbance in comfort of any kind, there are some
measures you can take yourself before you need to contact your installer.
See page 44 for instructions.

41 Important information
5Safety information
5Symbols
6Marking
6Serial number
7F1126 – An excellent choice
82 The heat pump – the heart of the house
9Heat pump function
10Contact with F1126
18Maintenance of F1126
18Saving tips
223 F1126 – at your service
22Set the indoor climate
29Set the hot water capacity
32Get information
35Adjust the heat pump
434 Disturbances in comfort
43Manage alarm
44Troubleshooting
48Only additional heat
495 Technical data
506 Glossary
56Item register
59Contact information
3Table of ContentsNIBE F1126
Table of Contents

INSTALLATION DATA
F1126Product
Serial number
Installation date
Installer
Type of brine -
Mixing ratio/freezing point
Active drilling depth/collector length
Accessories
✔
SetFact.
sett.
NameNo.
0heating curve (offset)1.9.1.1
7heating curve (curve
slope)
1.9.1.1
Serial number must always be given
Certification that the installation is carried out according to instructions in the accompanying
installer manual and applicable regulations.
_________________________Signed__________________Date
NIBE F1126Chapter 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. Children shall not
play with the appliance. Cleaning and user maintenance
shall not be made by children without supervision.
Rights to make any design or technical modifications
are reserved.
©NIBE 2020.
Do not start F1126 if there is a risk that the water in the
system has frozen.
If the supply cable is damaged, only NIBE, its service
representative or similar authorised person may replace
it to prevent any danger and damage.
Water may drip from the safety valve’s overflow pipe, so
the overflow pipe’s opening must be open. The safety
valves must be actuated regularly to remove dirt and to
check that they are not blocked.
Symbols
WARNING!
This symbol indicates serious danger to person or machine.
NOTE
This symbol indicates danger to person or machine .
5Chapter 1 | Important informationNIBE F1126

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.IP21
Danger to person or machine.
!
Serial number
The serial number can be found at the bottom right of the front cover,
in the info menu (menu 3.1) and on the type plate .
Serial number
Caution
You need the product's ((14 digit) serial number for servicing
and support.
NIBE F1126Chapter 1 | Important information6

F1126 – An excellent choice
F1126 is part of a new generation of heat pumps, which have been intro-
duced to supply your home with inexpensive and environmentally friendly
heating. Heat production is safe and economical with integrated immer-
sion heater, circulation pumps and control system.
The heat pump can be connected to an optional low temperature heat
distribution system. e.g. radiators, convectors or underfloor heating. It
is also prepared for connection to several different products and accessor-
ies, e.g. water heaters and ventilation recovery.
An immersion heater of 7 kW can be connected automatically if anything
unforeseen should occur or as back-up operation (factory setting 6 kW).
F1126 is equipped with a control computer for good comfort, good
economy and safe operation. Clear information about status, operation
time and all temperatures in the heat pump are shown on the large and
easy to read display. This means, for example, that external unit thermo-
meters are not necessary.
EXCELLENT PROPERTIES FOR F1126:
•Display with user instructions
The heat pump has a large display with easy-to-understand menus that
facilitate setting a comfortable climate.
•Simple troubleshooting
In the event of a fault, the heat pump display shows what happened
and the actions to be taken.
7Chapter 1 | Important informationNIBE F1126

100 ºC
50 ºC40 ºC
-2 ºC
0 ºC-3 ºC
-4 ºC
Heating medium
Brine
Refrigerant
Evaporator
Condenser
Expansion valve
Compressor
1
2
3
Heat source
A
B
C
D
E
G
F
H
The temperatures are only examples and may vary between different installations and
time of year.
NIBE F1126Chapter 2 | The heat pump – the heart of the house8
2 The heat pump – the heart of
the house

Heat pump function
A heat pump can use stored solar energy from rock, ground or water in
order to heat a property. The conversion of stored energy in nature to
property 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. In the refrigerant circuit, (2) , the heat pump increases
the retrieved heat's low temperature to a high temperature. In the
heating medium circuit, (3) , the heat is distributed around the house.
The temperatures below are only examples and may vary between dif-
ferent installations and times of year.
Brine circuit
In a hose, collector, an anti-freeze liquid, brine, circulates from the heat
pump out to the heat source (rock/ground/lake). The energy from the
heat source is stored by it heating the brine a few degrees, from about
–3°C to about 0 °C.
A
The collector then routes the brine to the heat pump’s evaporator. Here,
the brine releases heat energy and the temperature drops a few degrees.
The liquid then returns to the heat source to retrieve energy again.
B
Refrigerant circuit
Another liquid circulates in a closed system in the heat pump, a refriger-
ant, which also passes the evaporator. The refrigerant has a very low
boiling point. In the evaporator the refrigerant receives the heat energy
from the brine 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 approx.
5ｰC to approx. 100 ｰ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 heating energy that the refrigerant releases in the condenser is re-
trieved by the heat pump's boiler section.
G
9Chapter 2 | The heat pump – the heart of the houseNIBE F1126

The heating medium circulates in a closed system and transports the
heated water's heat energy to the house water heater and radiators/heat-
ing coils.
H
Contact with F1126
DISPLAY UNIT
A
B
C
D
E
F
Display
Status lamp
OK button
Back button
Control knob
Switch
INDOOR CLIMATE
HEAT PUMP
INFO
HOT WATER
F1126 GUSB port
There is a display unit on the front of the heat pump, which is used to
communicate with F1126.. Here you:
• switch on, switch off or set the heat pump in emergency mode.
• sets the indoor climate and hot water as well as adjusts the heat pump
to your needs.
• receive information about settings, status and events.
• see different types of alarms and receive instructions about how they
are to be rectified.
Display
Instructions, settings and operational information are shown on
the display. You can easily navigate between the different menus
and options to set the comfort or obtain the information you require.
A
NIBE F1126Chapter 2 | The heat pump – the heart of the house10

Status lamp
The status lamp indicates the status of the heat pump. It:
• lights green during normal operation.
• lights yellow in emergency mode.
• lights red in the event of a deployed alarm.
B
OK button
The OK button is used to:
• confirm selections of sub menus/options/set values/page in the
start guide.
C
Back button
The back button is used to:
• go back to the previous menu.
• change a setting that has not been confirmed.
D
Control knob
The control knob can be turned to the right or left. You can:
• scroll in menus and between options.
• increase and decrease the values.
• change page in multiple page instructions (for example help text
and service info).
E
Switch
The switch assumes three positions:
•On ()
•Standby ( )
•Emergency mode ( )
Emergency mode must only be used in the event of a fault on the
heat pump. In this mode, the compressor switches off and the
immersion heater engages. The heat pump display is not illumin-
ated and the status lamp illuminates yellow.
F
11Chapter 2 | The heat pump – the heart of the houseNIBE F1126

USB port
The USB port is hidden beneath the plastic badge with the product
name on it.
The USB port is used to update the software.
Visit nibeuplink.com and click the "Software" tab to download the
latest software for your installation.
G
NIBE F1126Chapter 2 | The heat pump – the heart of the house12

MENU SYSTEM
INDOOR CLIMATE
HEAT PUMP
INFO
HOT WATER
Indoor temperature -
(if room sensors are
installed)
Hot water temp.
Temporary lux (if
activated)
Outdoor
temperature
Estimated amount of
hot water
INDOOR CLIMATE
Setting the indoor climate. See page 22.
Menu 1
HOT WATER
Setting the hot water production. See page 29.
Menu 2
This menu only appears if a water heater is docked to the heat pump.
INFO
Display of temperature and other operating information and access to the alarm
log. See page 33.
Menu 3
HEAT PUMP
Setting time, date, language, display, operating mode etc. See page 37.
Menu 4
13Chapter 2 | The heat pump – the heart of the houseNIBE F1126

INDOOR CLIMATE
HEAT PUMP
INFO
HOT WATER
INDOOR CLIMATE 1
temperature
advanced
Marked main
menu
Menu number – marked sub menu Name and menu number – main menu
Symbol –
main menu
Status information – sub
menus
Name – sub menusSymbols – sub menus
Operation
To move the cursor, turn the control knob to the left or the
right. The marked position is brighter and/or has a light frame.
Selecting menu
To advance in the menu system select a main menu by
marking it and then pressing the OK button. A new window then opens
with sub menus.
Select one of the sub menus by marking it and then pressing the OK
button.
NIBE F1126Chapter 2 | The heat pump – the heart of the house14

Selecting options
economy
comfort mode 2.2
normal
luxury
Alternative
In an options menu the current selected option is indicated by a
green tick.
To select another option:
1. Mark the applicable option. One of the options is pre-selected
(white).
2. Press the OK button to confirm the selected option. The selec-
ted option has a green tick.
15Chapter 2 | The heat pump – the heart of the houseNIBE F1126

Setting a value
time & date4.4
time
day
year
month
24 h
12 h
date
Values to be changed
To set a value:
1. Mark the value you want to set using the control knob.
2. Press the OK button. The background of the value becomes
green, which means that you have accessed the setting mode.
3. Turn the control knob to the right to increase the value and to
the left to reduce the value.
4. Press the OK button to confirm the value you have set. To
change and return to the original value, press the Back button.
Scroll through the windows
A menu can consist of several windows. Turn the control knob to scroll
between the windows.
Current menu
window
Number of windows
in the menu
Scroll through the windows in the start guide
language4.6
If the start guide is left on this page it closes
automatically in
60 min
start guide NIBE F1126
Arrows to scroll through window in start guide
1. Turn the control knob until one of the arrows in the top left corner
(at the page number) has been marked.
2. Press the OK button to skip between the steps in the start guide.
NIBE F1126Chapter 2 | The heat pump – the heart of the house16

Help menu
In many menus there is a symbol that indicates that extra help is
available.
To access the help text:
1. Use the control knob to select the help symbol.
2. Press the OK button.
The help text often consists of several windows that you can scroll
between using the control knob.
17Chapter 2 | The heat pump – the heart of the houseNIBE F1126

Maintenance of F1126
F1126 requires minimal maintenance after commissioning. However, it
is recommended that you check your installation regularly.
If something unusual occurs, messages about the malfunction appear
in the display in the form of different alarm texts. See alarm management
on page 43.
BRINE
Brine
The brine that obtains the heat in the ground is not normally consumed,
but just pumped around.
LEK
Your installation includes an expansion vessel, where you
can control the pressure in the system. The pressure can
vary slightly due to the fluid’s temperature. The pressure
should not fall below 0.5 bar.
Ask your installer if you are unsure where the expansion vessel is located.
Your installer can also help you to top-up if the pressure has dropped.
SAFETY VALVE
For installations with a water heater.
You can find the safety valve on the incoming pipe (cold water) to the
water heater.
The water heater’s safety valve sometimes releases a little water after
hot water usage. This is because the cold water, which enters the water
heater to replace the hot water, expands when heated causing the
pressure to rise and the safety valve to open.
The function of the safety valve must be checked regularly. Perform
checks as follows:
1. Open the valve.
2. Check that water is flowing through it.
3. Close the valve.
Saving tips
Your heat pump installation produces heat and/or hot water. This occurs
via the control settings you made.
NIBE F1126Chapter 2 | The heat pump – the heart of the house18

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 rooms where you
want it to be cooler). The thermostats slow the flow in the heating
system, which F1126 wants to compensate by increasing the temper-
ature. It will then work harder and consume more energy.
POWER CONSUMPTION
Energiförbrukning fördelat över året
0%
5%
10%
15%
20%
jan feb mars april maj juni juli aug sep okt nov dec
Månad
% av årsförbrukningen
The ground source heat pump's energy distribution is 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 the energy
consumption by approx. 5%.
19Chapter 2 | The heat pump – the heart of the houseNIBE F1126

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)
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.
NIBE F1126Chapter 2 | The heat pump – the heart of the house20