Nibe F1245 User manual

User manual
LEK
NIBE™ F1245
Ground source heat pump
AHB GB 0926-1
031336

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 13.
Set the indoor climate
2X
The mode for setting the indoor temperature is reached, when in the start
mode in the main menu, by pressing the OK button twice. Read more
about the settings on page 23.
Increase hot water volume
2X
1X
To temporarily increase the amount of hot water , first turn the control
knob to mark menu 2 and then press the OK button twice. Read more
about the settings on page 46.
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 69
for instructions.

Table of Contents
1 Important information 2
Installation data 2
Safety information 3
Serial number 4
Contact information 5
F1245 – An excellent choice 6
2 The heat pump – the heart of the house 7
Heat pump function 8
Contact with F1245 9
Maintenance of F1245 17
3 F1245 – at your service 22
Set the indoor climate 22
Set the hot water capacity 45
Get information 51
Adjust the heat pump 55
4 Disturbances in comfort 68
Manage alarm 68
Troubleshooting 69
Only additional heat 72
5 Technical data 73
6 Glossary 74
Item register 80
1NIBE™ F1245Table of Contents |

1Important information
Installation data
F1245Product
Serial number
Installation date
Installer
Type of brine -
Mixing ratio/freezing point
Active drilling depth/collector
length
Accessories
✔
SetDe-
fault
set-
tings
NameNo.
0heating curve (offset)1.9.1
7heating curve (curve
slope)
1.9.1
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 information2

Safety information
This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appli-
ance.
Rights to make any design or technical modifications are reserved.
©NIBE 2008.
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
This heat pump is CE marked and fulfils IP21.
The CE marking means that NIBE ensures that the product meets all regula-
tions 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.
IP21 means that the product cannot be penetrated by objects with a diameter
larger than or equivalent to 12.5 mm and cause damage and that the product
is protected against vertically falling drops.
3NIBE™ F1245Chapter 1 | Important information

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 when reporting a fault.
NIBE™ F1245Chapter 1 | Important information4

Contact information
KNV Energietechnik GmbH, Gahberggasse 11, 4861 SchörflingAT
Tel: [phone] Fax: [phone] E-mail: [email protected]
www.knv.at
NIBE Wärmetechnik AG, Winterthurerstrasse 710, CH-8247 FlurlingenCH
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.ch
Druzstevni zavody Drazice s.r.o, Drazice 69, CZ - 294 71 Benatky nad
Jizerou
CZ
Tel: [phone] Fax: [phone] E-mail: [email protected]
www.nibe.cz
NIBE Systemtechnik GmbH, Am Reiherpfahl 3, 29223 CelleDE
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.de
Vølund Varmeteknik, Filial af NIBE AB, Brogårdsvej 7, 6920 VidebækDK
Tel: [phone] Fax: [phone] E-mail: [email protected] www.volund-
vt.dk
NIBE – Haato OY, Valimotie 27, 01510 VantaaFI
Puh: 09-274 697 0 Fax: [phone] E-mail: [email protected]
www.haato.fi
NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way,
Chesterfield S41 9QG
GB
Tel: [phone] Fax: [phone] E-mail: [email protected]
www.nibe.co.uk
NIBE Energietechniek B.V., Postbus 2, NL-4797 ZG WILLEMSTAD (NB)NL
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibenl.nl
NIBE AB, Fekjan 15F, 1394 NesbruNO
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibevillav-
arme.no
NIBE-BIAWAR Sp. z o. o. Aleja Jana Pawła II 57, 15-703 BIAŁYSTOKPL
Tel: [phone] Fax: [phone] E-mail: [email protected]
www.biawar.com.pl
NIBE AB Sweden, Box 14, Järnvägsgatan 40, SE-285 21 MarkarydSE
Tel: [phone] Fax: [phone] E-mail: [email protected]
www.nibe.se
5NIBE™ F1245Chapter 1 | Important information

F1245 – An excellent choice
F1245 is part of a new generation of heat pumps, which have been introduced
to supply your home with inexpensive and environmentally friendly heating
and/or cooling. Heat production is safe and economical with integrated water
heater, immersion heater, circulation pump and control system.
The heat pump can be connected to an optional low temperature heat distri-
bution 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 9 kW (if 1 phase, 7 kW) can be connected automat-
ically if anything unforeseen should occur or as reserve operation (then 6
kW).
F1245 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 thermometers are not
necessary.
Excellent properties for F1245:
႑Integrated water heater
There is a water heater integrated in the heat pump, which is insulated
with environmentally friendly cellular plastic for minimal heat loss.
႑Scheduling 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 (vacation).
႑Large display with user instructions
The heat pump has a large display with easy-to-understand menus that
facilitate setting a comfortable climate.
႑Simple troubleshooting
In the event of a fault, the heat pump display shows what happened and
the actions to be taken.
NIBE™ F1245Chapter 1 | Important information6

2The heat pump – the heart of
the house
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
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.
7NIBE™ F1245Chapter 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.
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 5 °C to approx. 100 °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 retrieved by
the heating system's water, heating medium, which is heated to 35 °C (supply
temperature).
G
The heating energy that the refrigerant releases in the condenser is retrieved by
the heat pump's boiler section.
The heating medium circulates in a closed system and transports the heated wa-
ter's heat energy to the house water heater and radiators/heating coils.
H
NIBE™ F1245Chapter 2 | The heat pump – the heart of the house8

Contact with F1245
External information
When the heat pump door is closed, information can be received via an in-
formation 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
59.
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 68.
The temperatures are only examples and may vary between different installations and time
of year.
9NIBE™ F1245Chapter 2 | The heat pump – the heart of the house

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
There is a display unit behind the heat pump door, which is used to commu-
nicate with F1245. Here you
႑switch on, switch off or set the heat pump in emergency mode.
႑sets the indoor climate and hot water as well as adjusts the heat pump
to your needs.
႑receive information about settings, status and events.
႑see 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 navigation
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:
႑lights green during normal operation.
႑lights yellow in emergency mode.
႑lights red in the event of a deployed alarm.
B
NIBE™ F1245Chapter 2 | The heat pump – the heart of the house10

OK button
The OK button is used to:
႑confirm selections of sub menus/options/set values/page in the
start guide.
C
Back button
The back button is used to:
႑go back to the previous menu.
႑change a setting that has not been confirmed.
D
Control knob
The control knob can be turned to the right or left. You can:
႑scroll in menus and between options.
႑increase and decrease the values.
႑change page in multiple page instructions (for example help
text and service info).
E
Switch
The switch assumes three positions:
႑On ( )
႑Standby ( )
႑Emergency 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 illuminated and the
status lamp illuminates yellow.
F
11NIBE™ F1245Chapter 2 | The heat pump – the heart of the house

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.
INDOOR CLIMATE
HEAT PUMP INFO
HOT WATER
Indoor temperature -
(if a room sensor is
connected)
Hot water temp.
Temporary lux (if
activated)
Outdoor temperature
Estimated amount of
hot water
Information about
operation
INDOOR CLIMATE
Setting and scheduling the indoor climate. See page 22.
Menu 1
HOT WATER
Setting and scheduling hot water production. See page 45.
Menu 2
INFO
Display of temperature and other operating information and access to the
alarm log. See page 51.
Menu 3
HEAT PUMP
Setting time, date, language, display, operating mode etc. See page 55.
Menu 4
NIBE™ F1245Chapter 2 | The heat pump – the heart of the house12

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 always brighter 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.
13NIBE™ F1245Chapter 2 | The heat pump – the heart of the house

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:
Mark the applicable option. One of the options is pre-selected
(white).
1.
Press the OK button to confirm the selected option. The selected
option has a green tick.
2.
NIBE™ F1245Chapter 2 | The heat pump – the heart of the house14

Setting a value
time & date 4.4
time
day
year
month
24 hrs
12 h
date
Values to be changed
To set a value:
Mark the value you want to set using the control knob.1.
Press the OK button. The background of the value becomes
green, which means that you have accessed the setting mode.
2.
Turn the control knob to the right to increase the value and to
the left to reduce the value.
3.
Press the OK button to confirm the value you have set. To undo
and return to the original value, press the Back button.
4.
15NIBE™ F1245Chapter 2 | The heat pump – the heart of the house

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
start guide 5.7
Arrows to scroll through window in start guide
1. Turn the control knob until the arrow in the top left corner (at the page
number) has been marked.
2. Press the OK button to access the next step in the start guide.
Help menu
In many menus there is a symbol that indicates that extra help is avail-
able.
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.
NIBE™ F1245Chapter 2 | The heat pump – the heart of the house16

Maintenance of F1245
Regular checks
Your heat pump is, in principle, maintenance free and therefore requires
minimal care after commissioning. On the other hand, 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
68.
Level vessel
The brine that obtains the heat in the ground is not normally
consumed but just pumped around. In most installations, there
is a level vessel where you can check if there is sufficient fluid in
the system. Ask your installer if you are unsure where the level
vessel is located. The level can vary due to the fluid’s temperat-
ure. If the level is below 1/3 topping up is required. Contact your
installer for assistance with filling.
1/3
LEK
Expansion vessel
The brine that obtains the heat in the ground is not normally
consumed but just pumped around. In some installations there
is an expansion tank instead of a level vessel (for example, where
the heat pump is not at the highest point in the brine system)
where the system pressure can be checked. Ask your installer if
you are unsure where the expansion tank is located. The pressure
can vary due to the fluid’s temperature. The pressure should not
fall below 0.5 bar. Contact your installer for assistance with
filling.
LEK
17NIBE™ F1245Chapter 2 | The heat pump – the heart of the house

Safety valve
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. You can find the
safety valve on the incoming pipe (cold water) to the water heater. Perform
checks as follows:
1. Open the valve by turning the knob anti-clockwise carefully.
2. Check that water flows through the valve.
3. Close the valve by releasing it. If it does not close automatically when
released, turn it anti-clockwise slightly.
Saving tips
Your heat pump installation produces heat and hot water. This occurs via the
control settings you made.
Factors that affect the energy consumption are, for example, indoor temper-
ature, 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:
႑Open 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.
႑You can lower the temperature when away from the house by scheduling
"holiday setting" in menu 4.7. See page 60 for instructions.
႑If you activate "Hot water Economy", less energy is used.
NIBE™ F1245Chapter 2 | The heat pump – the heart of the house18