Nibe F1245 User manual

User manual
LEK
NIBE™ F1245
UK 1x230V
Ground source heat pump
UHB GB 1603-2
231994

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
13.
How to scroll through menus and make different settings is described
on page 18.
Set the indoor climate
2X
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 28.
Increase hot water volume
2X
1X
To temporarily increase the amount of hot water, first turn the control
knob to mark menu 2 (water droplet) and then press the OK button
twice. Read more about the settings on page 49.
In event of disturbances in comfort
If a disturbance in comfort of any type occurs there are some measures
that can be taken before you need to contact your installer. See page
74 for instructions.

Table of Contents
41 Important information
4Installation data
5Safety information
6Serial number
7Country specific information
9F1245 – An excellent choice
102 The heat pump – the heart of the house
11Heat pump function
12Contact with F1245
23Maintenance of F1245
273 F1245 – at your service
27Set the indoor climate
49Set the hot water capacity
54Get information
58Adjust the heat pump
734 Disturbances in comfort
73Manage alarm
74Troubleshooting
77Only additional heat
785 Technical data
796 Glossary
85Index
3NIBE™ F1245Table of Contents |

1 Important information
Installation data
F1245Product
Serial number
Installation date
Installer
Type of brine -
Mixing ratio/freezing point
Active drilling depth/collector
length
Accessories
✔
SetFactory
settings
NameNo.
0heating curve (off-
set)
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 NIBE's installer manual and applicable regulations.
_________________________Signed__________________Date
NIBE™ F1245Chapter 1 | Important information4

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
instruction 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 2016.
NOTE
Do not start the heat pump, if there is a risk that the water in the
system has frozen.
NOTE
If the supply cable is damaged, only NIBE, its service representative
or similar authorised person may replace it to prevent any danger
and damage.
MinMaxSystem pressure
0.05 MPa
(0.5 bar)
0.3 MPa
(3 bar)
Brine
0.05 MPa
(0.5 bar)
0.4 MPa
(4 bar)
Heating medium
5NIBE™ F1245Chapter 1 | Important information

Symbols
NOTE
This symbol indicates danger to machine or person.
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 marking means that NIBE ensures that the product meets all regu-
lations that are placed on it based on relevant EU directives. The CE mark
is obligatory for most products sold in the EU, regardless where they are
made.
Serial number
The serial number can be found at the bottom right of the front cover and
in the info menu (menu 3.1).
Serial number
Caution
Always give the product's serial number (14 digits) when contacting
your installer.
NIBE™ F1245Chapter 1 | Important information6

Country specific information
Great Britain
This installation is subject to building regulation approval, notify the local
Authority of intention to install.
Use only manufacturer’s recommended replacement parts.
Nibe is a licensed member of the Benchmark Scheme which aims to im-
prove the standards of installation and commissioning of domestic heating
and hot water systems in the UK and to encourage regular servicing to
optimise safety, efficiency and performance.
Benchmark is managed and promoted by the Heating and Hotwater In-
dustry Council. For more information visit www.centralheating.co.uk
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 labour 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 components issued within the applicable guarantee period
still benefit 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.
Please ensure that the installer has fully completed the Benchmark
Checklist in the end of the Installation Instructions supplied with the
product and that you have signed to say that you have received a full and
clear explanation of its operation. The installer is legally required to com-
plete a commissioning checklist as a means of complying with the appro-
priate Building Regulations (England and Wales).
All installations must be notified to Local Area Building Control either
directly or through a Competent Persons Scheme. A Building Regulations
Compliance Certificate will then be issued to the customer who should,
on receipt, write the Notification Number on the Benchmark Checklist.
7NIBE™ F1245Chapter 1 | Important information

This product should be serviced regularly to optimise its safety, efficiency
and performance. The service engineer should complete the relevant
Service Record on the Benchmark Checklist after each service.
The Benchmark Checklist may be required in the event of any warranty
work and as supporting documentation relating to home improvements
in the optional documents section of the Home Information Pack.
NIBE™ F1245Chapter 1 | Important information8

F1245 – An excellent choice
F1245 is part of a new generation of heat pumps, which have been intro-
duced to supply your home with inexpensive and environmentally friendly
heating and/or cooling. Heat production is safe and economical with in-
tegrated hot water heater, immersion heater, circulation pump and control
system.
The heat pump can be connected to an optional low temperature heat
distribution system. e.g. radiators, convectors or under floor heating. It is
also prepared for connection to several different products and accessories,
e.g. extra hot water heater, ventilation recovery, pool, free cooling and
climate systems with different temperatures.
An immersion heater of 7 kW can be connected automatically if anything
unforeseen should occur or as emergency operation (factory setting 6
kW).
F1245 is equipped with a control computer for good comfort, good eco-
nomy 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 thermometers
are not necessary.
Excellent properties for F1245:
■Integrated water heater
There is a water heater integrated in the heat pump, which is insulated
with environmentally friendly cellular plastic for minimal heat loss.
■Scheduling the indoor comfort and hot water
Heating and hot water as well as cooling and ventilation in some cases,
can be scheduled for each day of the week or for longer periods (vaca-
tion).
■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.
9NIBE™ F1245Chapter 1 | Important information

2 The heat pump – the heart of
the house
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
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.
NIBE™ F1245Chapter 2 | The heat pump – the heart of the house10

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 different
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 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
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 increases
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
The heating medium circulates in a closed system and transports the heated
water's heat energy to the house water heater and radiators/heating coils.
H
11NIBE™ F1245Chapter 2 | The heat pump – the heart of the house

Contact with F1245
External information
When the heat pump door is closed, information can be received via an
information window and a status lamp.
Information window
Status lamp
Information window
The information window shows part of the display that is on the display
unit (located behind the door to the heat pump). The information window
can display different type of information, e.g. temperatures, clock, etc.
You determine what is to be displayed in the information window. Your
own combination of information is entered using the display unit. This
information is specific to the information window and disappears when
the heat pump door is opened.
Instructions on how to set the information window can be found on page
66.
Status lamp
The status lamp indicates the status of the heat pump: continuous green
light during normal function, continuous yellow light during activated
emergency mode or continuous red light in the event of a deployed alarm.
Alarm management is described on page 73.
NIBE™ F1245Chapter 2 | The heat pump – the heart of the house12

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
F1245 GUSB port
There is a display unit behind the heat pump door, which is used to com-
municate with F1245. 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. The easy-to-read display and menu system, facilitates navig-
ation between the different menus and options to set the comfort
or obtain the information you require.
A
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
13NIBE™ F1245Chapter 2 | The heat pump – the heart of the house

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 immer-
sion heater engages. The heat pump display is not illuminated and
the status lamp illuminates yellow.
F
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 http://www.nibeuplink.com and click the "Software" tab to
download the latest software for your installation.
G
NIBE™ F1245Chapter 2 | The heat pump – the heart of the house14

Menu system
When the door to the heat pump is opened, the menu system’s four main
menus are shown in the display as well as certain basic information.
Master
INDOOR CLIMATE
HEAT PUMP INFO
HOT WATER
SERVICE
Indoor temperature - (if room sensors are installed)
Hot water temp.
Temporary lux (if activated)
Outdoor
temperature
Estimated amount of hot water
Information about
operation
Slave
INFO
HOT WATER
If the heat pump is set as slave a limited main menu is displayed because
the majority of the settings for the system are made at the master heat
pump.
15NIBE™ F1245Chapter 2 | The heat pump – the heart of the house

INDOOR CLIMATE
Setting and scheduling the indoor climate. See page 27.
Menu 1
HOT WATER
Setting and scheduling hot water production. See page 49.
Menu 2
This menu is also set in the slave heat pump's limited menu system.
INFO
Display of temperature and other operating information and access to
the alarm log. See page 54.
Menu 3
This menu is also set in the slave heat pump's limited menu system.
HEAT PUMP
Setting time, date, language, display, operating mode etc. See page 58.
Menu 4
NIBE™ F1245Chapter 2 | The heat pump – the heart of the house16

Symbols in the display
The following symbols can appear in the display during operation.
DescriptionSymbol
This symbol appears by the information sign if there is inform-
ation in menu 3.1 that you should note.
These two symbols indicate whether the compressor or addi-
tion is blocked in F1245.
These can, for example, be blocked depending on which op-
erating mode is selected in menu 4.2, if blocking is scheduled
in menu 4.9.5 or if an alarm has occurred that blocks one of
them.
Blocking the compressor.
Blocking additional heat.
This symbol appears if periodic increase or lux mode for the
hot water is activated.
This symbol indicates whether "holiday setting" is active in
4.7.
This symbol indicates whether F1245 has contact with NIBE
NIBE Uplink.
This symbol indicates the actual speed of the fan if the speed
has changed from the normal setting.
Accessory NIBE FLM required.
This symbol indicates whether pool heating is active.
Accessory needed.
This symbol indicates whether cooling is active.
Accessory needed.
17NIBE™ F1245Chapter 2 | The heat pump – the heart of the house

INDOOR CLIMATE
HEAT PUMP INFO
HOT WATER
temperature
INDOOR CLIMATE 1
ventilation
scheduling
advanced
off
normal
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 white and/or has a turned up tab.
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™ F1245Chapter 2 | The heat pump – the heart of the house18

Selecting options
economy
comfort mode2.2
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 selected
option has a green tick.
19NIBE™ F1245Chapter 2 | The heat pump – the heart of the house

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.
NIBE™ F1245Chapter 2 | The heat pump – the heart of the house20