Nibe F370 User manual

User manual
Exhaust air heat pump
NIBE F370
UHB EN 2340-1
831044

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 8.
How to scroll through menus and make different settings is described on page 10.
Set the indoor climate
2X
INDOOR CLIMATE
HEAT PUMP INFO
HOT WATER
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 15.
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 21.
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 32 for instructions.

41 Important information
4Installation data
5Safety information
5Symbols
5Serial number
6F370 – An excellent choice
72 The heat pump – the heart of the house
7Heat pump function
8Contact with F370
12Maintenance of F370
153 F370 – at your service
15Set the indoor climate
21Set the hot water capacity
23Get information
25Adjust the heat pump
324 Disturbances in comfort
32Info menu
32Manage alarm
32Troubleshooting
345 Technical data
356 Glossary
37Item register
39Contact information
3Table of ContentsNIBE F370
Table of Contents

Installation data
F370Product
Serial number
Installation date
Installer
Accessories
✔
Extra shunt ECS 40/41
Docking kit DEH 40/DEH 41
Room unit RMU 40
Solar panels NIBE PV
SetFact.
sett.
NameNo.
0temperature (curve offset)1.1
9heating curve (curve slope)1.9.1
20min. flow line temp.1.9.3
65%fan sp. exhaust air (normal)5.1.5
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 F370Chapter 1 | Important information4
Important information

Safety information
For the latest version of the product’s documentation, see
nibe.eu.
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 2023.
Do not start F370 if there is a risk that the
water in the system has frozen.
Water may drip from the safety valve. A
factory-fitted overflow pipe runs from the
safety valve to an overflow cup. An over-
flow pipe runs from the overflow cup to a
suitable drain. The mouth of the overflow
pipe must be open. The safety valve must
be actuated regularly to remove dirt and to
check that it is not blocked.
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 observe when maintaining your
installation.
TIP
This symbol indicates tips on how to facilitate us-
ing the product.
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.
5Chapter 1 | Important informationNIBE F370

F370 – An excellent choice
F370 is a heat pump that has been developed to supply your
house with ventilation, heating and hot water in a cost-ef-
fective and environmentally friendly manner.
Heat production is reliable and economical, thanks to an in-
tegrated hot water heater, immersion heater, circulation
pump and control system.
The heat pump can be connected to an optional low temper-
ature heat distribution system. e.g. radiators, convectors or
underfloor heating. It is also prepared for connection to
several different products and accessories, e.g. extra water
heater and climate systems with different temperatures.
F370 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 neces-
sary.
EXCELLENT PROPERTIES FOR F370:
•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 ventilation, can be
scheduled for each day of the week or for longer periods
(vacation).
•Display with user instructions
The heat pump has a large display with easy-to-under-
stand 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.
NIBE F370Chapter 1 | Important information6

Heat pump function
An exhaust air heat pump utilises the heat in the house’s
ventilation air to heat up the dwelling. The ventilation air’s
energy is converted to residential heating in three different
circuits. From the outgoing ventilation air (1), heating energy
is recovered from the dwelling and transferred to the heat
pump. The heat pump increases the recovered heat’s low
temperature to a high temperature in the refrigerant circuit
(2). The heat is distributed around the house in the heating
medium circuit (3).
-2 ºC
0 ºC
10 ºC
22 ºC
80 ºC
55 ºC 45 ºC
Heating medium
Refrigerant
Evaporator
Condenser
Compressor
1
2
3
Expansion valve
Exhaust air
Extract air
A
B
C
DF
E
G
I
H
The temperatures are only examples and may vary between
different installations and time of year.
Ventilation air
The hot air (exhaust air) is transferred from the rooms to the
heat pump via the house ventilation system.
A
The fan then routes the air to the heat pump’s evaporator.
Here, the air releases the thermal energy and the air’s tem-
perature drops significantly. The cold air (extract air) is then
blown out of the house.
B
Refrigerant circuit
A liquid, a refrigerant, circulates in a closed system in the
heat pump which also passes the evaporator. The refrigerant
has a very low boiling point. In the evaporator the refrigerant
receives the heat energy from the ventilation air and starts
to boil.
C
The gas that is produced during boiling is routed into an
electrically powered compressor. When the gas is com-
pressed, the pressure increases and the gas’s temperature
increases considerably, from approx. 5°C to approx. 80°C.
D
From the compressor, the gas is forced into a heat exchanger,
condenser, where it releases heat energy to the heat pump’s
heating section, whereupon the gas is cooled and condenses
to liquid form again.
E
As the pressure is still high, the refrigerant can pass an ex-
pansion valve, where the pressure drops so that the refriger-
ant 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 condens-
er is retrieved by the climate system's water, heating medium,
which is heated to 35 °C (supply temperature).
G
The hot water circulates in a closed system and is pumped
out to the radiators/heating coils of the house.
H
The heat pump’s integrated water heater is in the heating
section. The heating medium heats the hot water.
I
7Chapter 2 | The heat pump – the heart of the houseNIBE F370
The heat pump – the heart of the
house

Contact with F370
EXTERNAL INFORMATION
When the heat pump door is closed, information can be re-
ceived 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 in-
formation window and disappears when the heat pump door
is opened.
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 32.
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
F370 GUSB port
There is a display unit behind the heat pump door, which is
used to communicate with F370. 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
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 val-
ues/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 illuminated and the status lamp illu-
minates yellow.
The automatic heating control system is not operational,
so manual shunt operation is required (see page 14).
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 nibeuplink.com and click the "Software" tab to
download the latest software for your installation.
G
NIBE F370Chapter 2 | The heat pump – the heart of the house8

MENU SYSTEM
When the door to the heat pump is opened, the menu sys-
tem’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 room sensors are
installed)
Hot water temp.
Temporary lux (if activated)
Outdoor
temperature
Estimated amount of hot
water
Information about
operation
MENU 1 - INDOOR CLIMATE
Setting and scheduling the indoor climate. See page 15.
MENU 2 - HOT WATER
Setting and scheduling hot water production. See page 21.
MENU 3 - INFO
Display of temperature and other operating information and
access to the alarm log. See page 23.
MENU 4 - HEAT PUMP
Setting time, date, language, display, operating mode etc.
See page 25.
Symbols in the display
The following symbols may appear on the display during
operation.
DescriptionSymbol
This symbol appears by the information sign if
there is information in menu 3.1 that you should
note.
These two symbols indicate whether the com-
pressor or addition is blocked in F370.
These can, for example, be blocked depending on
which operating 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 F370 has contact
with NIBE Uplink.
This symbol indicates the actual speed of the fan
if the speed has changed from the normal setting.
This symbol is visible in installations with active
solar accessories.
9Chapter 2 | The heat pump – the heart of the houseNIBE F370

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.
Selecting options
economy
comfort mode 2.2
normal
luxury
Alternative
In an options menu the current selected option is indic-
ated 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.
Setting a value
time & date 4.4
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 ac-
cessed 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 F370Chapter 2 | The heat pump – the heart of the house10

Use the virtual keyboard
Different keyboards
In some menus where text may require entering, a virtual
keyboard is available.
Depending on the menu, you can gain access to different
character sets which you can select using the control knob.
To change character table, press the Back button. If a menu
only has one character set the keyboard is displayed directly.
When you have finished writing, mark "OK” and press the OK
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
language 4.6
If the start guide is left on this page it
closes automatically in
60 min
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.
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.
11Chapter 2 | The heat pump – the heart of the houseNIBE F370

Maintenance of F370
REGULAR CHECKS
Your heat pump requires minimal maintenance after com-
missioning. On the other hand, it is recommended that you
check your installation regularly.
If something unusual occurs, messages about the malfunc-
tion appear in the display in the form of different alarm texts.
See alarm management on page 32.
Service hatch
The vent valves etc. are behind the service hatch. Remove
the hatch by pulling it towards you.
LEK
Cleaning the ventilation devices
The building’s ventilation
devices should be cleaned
regularly with, for example, a
small brush to maintain the
correct ventilation.
The device settings must not
be changed.
NOTE
If you take down
more than one ventil-
ation device for
cleaning, do not mix
them up.
Cleaning the air filter
The air filter in F370 has to be cleaned regularly; how often
depends, for example, on the quantity of particles in the
ventilation air. Test, to find out what is most appropriate for
your installation.
Caution
The efficiency of the installation can be impaired
by a dirty air filter.
You receive a reminder in the display to check the filter. The
factory setting for the reminder is every three months;
however, if the power supply to F370 is interrupted, the
countdown starts again.
1. Turn off F370 by setting the switch to .
2. Remove the upper front cover by pulling straight out.
3. Pull out the filter cassette.
4. Remove the filter and shake/vacuum it clean.
5. Check the condition of the filter and replace if needed.
6. Carry out assembly in reverse order.
Even if the filter looks clean, dirt collects in it and this affects
the efficiency of the filter. For this reason, replace the filter
at least once a year. A new filter can be ordered via a dealer
for NIBE or at nibe.eu.
NOTE
Water or other liquids must not be used for clean-
ing.
LEK
Filter
NIBE F370Chapter 2 | The heat pump – the heart of the house12

Check pressure
F370 has a pressure gauge which shows the heating system
pressure. The pressure should be between 0.5 and 1.5 bar,
but varies during temperature changes. If the pressure drops
to 0 or rises to 2.5 frequently, contact your installer for
troubleshooting.
LEK
LEK
Pressure gauge
Safety valves
F370 has two safety valves, one for the hot water and one
for the climate system.
The safety valve for the hot water sometimes releases a
small quantity of water after hot water usage. This is be-
cause the cold water that enters F370 expands while heating
up, causing the pressure to rise and the safety valve to open.
The climate system’s safety valve must be completely sealed
and normally does not release any water.
The function of the safety valves must be checked regularly.
The valves are accessed via the service hatch. 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 auto-
matically when released, turn it anti-clockwise slightly.
4. The climate system may need to be refilled, after
checking the safety valve, see section "Filling the climate
system".
LEK
LEK
LEK
LEK
LEK
LEK
LEK
LEK
LEK
PBD sv
BP5
QM20
GP1XL3FL2FL1CM1QM31XL1XL4XL2 QM32
WM2
QN11 MA1QM11 FL6
EB1
FA1
AA1
FD1
AA3
AA2
UB1
UB2
AA4
SF1
UR1GQ10EP1 GQ2
EB10QN1 CA1 HZ1
XL32 XL31
QM10
WM1
WP3
WP2 WP1
PF3
PF1
LEK
LEK
LEK
LEK
LEK
LEK
LEK
LEK
PBD sv
BP5
QM20
GP1XL3FL2FL1CM1QM31XL1XL4XL2 QM32
WM2
QN11 MA1QM11 FL6
EB1
FA1
AA1
FD1
AA3
AA2
UB1
UB2
AA4
SF1
UR1GQ10EP1 GQ2
EB10QN1 CA1 HZ1
XL32 XL31
QM10
WM1
WP3
WP2 WP1
PF3
PF1
Safety valve for hot water
Safety valve for climate system
Cleaning the overflow cup/floor drain
Condensation forms when the heat pump is working. This
condensation is routed via an overflow cup to a drain, e.g.
a floor drain.
The condensation water contains a certain amount of dust
and particles.
Regularly check that the overflow cup and any floor drain
are not blocked; water must be able to run through freely.
Clean, if necessary.
LEK
LEK
LEK
LEK
LEK
LEK
LEK
LEK
LEK
PBD sv
BP5
QM20
GP1XL3FL2FL1CM1QM31XL1XL4XL2 QM32
WM2
QN11 MA1QM11 FL6
EB1
FA1
AA1
FD1
AA3
AA2
UB1
UB2
AA4
SF1
UR1GQ10EP1 GQ2
EB10QN1 CA1 HZ1
XL32 XL31
QM10
WM1
WP3
WP2 WP1
PF3
PF1
LEK
LEK
LEK
LEK
LEK
LEK
LEK
LEK
PBD sv
BP5
QM20
GP1XL3FL2FL1CM1QM31XL1XL4XL2 QM32
WM2
QN11 MA1QM11 FL6
EB1
FA1
AA1
FD1
AA3
AA2
UB1
UB2
AA4
SF1
UR1GQ10EP1 GQ2
EB10QN1 CA1 HZ1
XL32 XL31
QM10
WM1
WP3
WP2 WP1
PF3
PF1
Overflow cup
Filling the climate system
If the pressure is too low, increase as follows:
1. Open the filler valve. The heating section and the rest
of the climate system are filled with water.
2. After a while the pressure rises on the pressure gauge.
When it is approx. 1.0 bar close the filler valve.
LEK
LEK
LEK
LEK
LEK
LEK
LEK
LEK
PBD sv
BP5
QM20
GP1XL3FL2FL1CM1QM31XL1XL4XL2 QM32
WM2
QN11 MA1QM11 FL6
EB1
FA1
AA1
FD1
AA3
AA2
UB1
UB2
AA4
SF1
UR1GQ10EP1 GQ2
EB10QN1 CA1 HZ1
XL32 XL31
QM10
WM1
WP3
WP2 WP1
PF3
PF1
LEK
Venting valve
Pressure gauge
LEK
LEK
LEK
LEK
LEK
LEK
LEK
LEK
PBD sv
BP5
QM20
GP1XL3FL2FL1CM1QM31XL1XL4XL2 QM32
WM2
QN11 MA1QM11 FL6
EB1
FA1
AA1
FD1
AA3
AA2
UB1
UB2
AA4
SF1
UR1GQ10EP1 GQ2
EB10QN1 CA1 HZ1
XL32 XL31
QM10
WM1
WP3
WP2 WP1
PF3
PF1
Filler valve
13Chapter 2 | The heat pump – the heart of the houseNIBE F370

Venting the climate system
In event of repeated filling of the climate system or if bub-
bling sounds are heard from the heat pump the system may
need venting. This is carried out as follows:
1. Turn the power switch to .
2. Vent the heat pump via the vent valve and the rest of
the climate system via its respective vent valves.
3. Keep topping up and venting until all air has been re-
moved and the pressure is correct.
NOTE
The vent pipe from the container must be drained
of water before air can be released. This means
that the system is not necessarily bled despite the
flow of water when the bleed valve is opened.
Therefore hold the vent valve open for at least 5
seconds.
Emergency mode
The automatic heating control system is not operational, so
manual shunt operation is required. This is done by turning
the adjustment screw on the shunt motor to "manual mode"
and then turning the shunt knob to the desired position.
LEK
LEK
LEK
LEK
LEK
LEK
LEK
LEK
PBD sv
BP5
QM20
GP1XL3FL2FL1CM1QM31XL1XL4XL2 QM32
WM2
QN11 MA1QM11 FL6
EB1
FA1
AA1
FD1
AA3
AA2
UB1
UB2
AA4
SF1
UR1GQ10EP1 GQ2
EB10QN1 CA1 HZ1
XL32 XL31
QM10
WM1
WP3
WP2 WP1
PF3
PF1
LEK
LEK
LEK
LEK
LEK
LEK
LEK
LEK
LEK
PBD sv
BP5
QM20
GP1XL3FL2FL1CM1QM31XL1XL4XL2 QM32
WM2
QN11 MA1QM11 FL6
EB1
FA1
AA1
FD1
AA3
AA2
UB1
UB2
AA4
SF1
UR1GQ10EP1 GQ2
EB10QN1 CA1 HZ1
XL32 XL31
QM10
WM1
WP3
WP2 WP1
PF3
PF1
N.O
Shunt motor
Adjuster screw
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 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 expos-
ure is also an affecting factor.
Even the house ventilation affects the energy consumption.
It is therefore important to perform a ventilation adjustment
shortly after installing the heat pump. At ventilation adjust-
ment, a ventilation technician sets the house ventilation
device and the fan in F370 according to the projected values
of the house.
Also remember:
•Open the thermostat valves completely (except in rooms
where you want it to be cooler). This is important, as fully
or partially closed thermostat valves slow the flow in the
climate system, which results in F370 working at a higher
temperature. This in turn can lead to increased energy
consumption.
•During the adjustment period (winter time), all thermostat
valves should be fully open. The heat pump's heating
settings are then adjusted so that the correct indoor
temperature is obtained, in most rooms, regardless of the
outdoor temperature. In rooms where a lower temperature
is required, the thermostat valves are lowered to the de-
sired level. After about a month, the remaining thermo-
stats can be lowered slightly to avoid an increase of the
room temperature due to solar radiation, stove heat, etc.
Further reductions may be required later on.
•You can lower the operating cost when away from home
by scheduling selected parts of the system. This is done
in menu 4.7 "holiday setting". See page 30 for instructions.
Power consumption
Approximate energy consumption for F370
spread across the year
Energiförbrukning fördelat över året
0%
5%
10%
15%
20%
25%
jan feb mars april maj juni juli aug sep okt nov dec
Månad
% av årsförbrukningen
Month
Jan Feb Mar April May June July Aug Sep Oct Nov Dec
% of annual
consumption
Increasing the indoor temperature by one degree increases
the energy consumption by approx. 5 %.
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 sys-
tem, as a rule, requires a lower temperature once the drying
process is complete.
NIBE F370Chapter 2 | The heat pump – the heart of the house14

Set the indoor climate
OVERVIEW
Sub-menus
temperature
INDOOR CLIMATE 1
ventilation
scheduling
advanced
off
normal
For the menu INDOOR CLIMATE there are several sub-
menus. Status information for the relevant menu can be
found on the display to the right of the menus.
temperature Setting the temperature for the climate sys-
tem. The status information shows the set values for the
climate system.
ventilation Setting the fan speed. The status information
shows the selected setting.
scheduling Scheduling heating and ventilation. Status in-
formation "set" is displayed if you set a schedule but it is
not active now, "holiday setting" is displayed if the vacation
schedule is active at the same time as the schedule (the
vacation function is prioritised), "active" displays if any part
of the schedule is active, otherwise it displays "off".
advanced Setting of heat curve, adjusting with external
contact, minimum value for supply temperature, room sensor
and night cooling.
MENU 1.1 - TEMPERATURE
temperature heating 1.1.1
Set the temperature (with room sensor
installed and activated):
heating
Setting range: 5 – 30 °C
Default value: 20
The value in the display appears as a temperature in °C if
the climate system is controlled by a room sensor.
Caution
A slow heat-releasing heating system, such as for
example, underfloor heating, may not be suitable
for control using the heat pump's room sensor.
To change the room temperature, use the control knob to
set the desired temperature in the display. Confirm the new
setting by pressing the OK button. The new temperature is
shown on the right-hand side of the symbol in the display.
Setting the temperature (without room
sensors activated):
Setting range: -10 to +10
Default value: -1
The display shows the set values for heating (curve offset).
To raise or lower the indoor temperature, increase or reduce
the value on the display.
Use the control knob to set a new value. Confirm the new
setting by pressing the OK button.
The number of steps the value has to be changed to achieve
a degree change of the indoor temperature depends on the
heating installation. One step is usually enough but in some
cases several steps may be required.
Setting the desired value. The new value is shown on the
right-hand side of the symbol in the display.
Caution
An increase in the room temperature can be
slowed by the thermostats for the radiators or
under floor heating. Therefore, open the thermo-
stats fully, except in those rooms where a cooler
temperature is required, e.g. bedrooms.
If the exhaust air temperature falls below 16 °C,
the compressor is blocked and electric additional
heat is permitted. No energy is recovered from the
exhaust air, when the compressor is blocked.
15Chapter 3 | F370 – at your serviceNIBE F370
F370 – at your service

TIP
Wait 24 hours before making a new setting, so that
the room temperature has time to stabilise.
If it is cold outdoors and the room temperature is
too low, increase the curve slope in menu 1.9.1.1
by one increment.
If it is cold outdoors and the room temperature is
too high, reduce the curve slope in menu 1.9.1.1 by
one increment.
If it is warm outdoors and the room temperature
is too low, increase the value in menu 1.1.1 by one
increment.
If it is warm outdoors and the room temperature
is too high, reduce the value in menu 1.1.1 by one
increment.
MENU 1.2 - VENTILATION
Setting range: normal and speed 1-4
Default value: normal
normal (50%)
ventilation 1.2
speed 1 (0%)
speed 2 (40%)
speed 3 (80%)
speed 4 (100%)
The ventilation in the accommodation can be temporarily
increased or reduced here.
When you have selected a new speed a clock starts a count
down. When the time has counted down the ventilation
speed returns to the normal setting.
If necessary, the different return times can be changed in
menu 1.9.6.
The fan speed is shown in brackets (in percent) after each
speed alternative.
TIP
If longer time changes are required use the holiday
function or scheduling.
Caution
The heat pump requires a minimum ventilation
flow in order to work properly. An insufficient
ventilation flow can result in an alarm and blocking
of compressor operation.
MENU 1.3 - SCHEDULING
scheduling 1.3
ventilation off
heating off
In the menu scheduling indoor climate (heating/ventilation)
is scheduled for each weekday.
You can also schedule a longer time during a selected period
(holiday) in menu 4.7.
MENU 1.3.1 - HEATING
Increases or decreases in the accommodation temperature
can be scheduled here for up to three time periods per day.
If a room sensor is installed and activated the desired room
temperature (°C) is set during the time period. Without an
activated room sensor the desired change is set (of setting
in menu 1.1). One step is usually enough to change the room
temperature by one degree, but in some cases several steps
may be required.
SCHEDULING HEATING 1.3.1
activated
schedule 2
system
schedule 3schedule 1
all
mon
tues
wed
thur
fri
sat
sun
21:30 -
06:00 20.5°
Time period AdjustingDay
Activated Schedule System
Conflict
Schedule: The schedule to be changed is selected here.
Activated: Scheduling for the selected period is activated
here. Set times are not affected at deactivation.
NIBE F370Chapter 3 | F370 – at your service16

System: The climate system that the relevant schedule
relates to is selected here. This alternative is only displayed
if there is more than one climate system.
Day: Select which day or days of the week the scheduling
is to apply to here. To remove the scheduling for a particular
day, the time for that day must be reset by setting the start
time to the same as the stop time. If the row "all" is used, all
days in the period are set according to that row.
Time period: The start and stop time for the selected day
for scheduling are selected here.
Adjustment: How much the heating curve is to be offset in
relation to menu 1.1 during scheduling is set here. If a room
sensor is installed, the desired room temperature is set in
°C.
Conflict: If two settings conflict with each other, a red ex-
clamation mark is displayed.
TIP
If you wish to set similar scheduling for every day
of the week start by filling in “all” and then chan-
ging the desired days.
TIP
Set the stop time earlier than the start time so that
the period extends beyond midnight. Scheduling
then stops at the set stop time the day after.
Scheduling always starts on the date that the start
time is set for.
Caution
Changes of temperature in accommodation take
time. For example, short time periods in combina-
tion with underfloor heating will not give a notice-
able difference in room temperature.
If the exhaust air temperature falls below 16 °C,
the compressor is blocked and electric additional
heat is permitted. No energy is recovered from the
exhaust air, when the compressor is blocked.
MENU 1.3.3 - VENTILATION
Increases or decreases in the ventilation to the accommod-
ation can be scheduled here for up to two time periods per
day.
all
mon
tues
wed
thur
fri
sat
sun
activated
schedule 2schedule 1
SCHEDULING VENTILATION 1.3.3
21:30 -
06:00 speed 3
Activated Schedule
Time period AdjustingDay Conflict
Schedule: The schedule to be changed is selected here.
Activated: Scheduling for the selected period is activated
here. Set times are not affected at deactivation.
Day: Select which day or days of the week the scheduling
is to apply to here. To remove the scheduling for a particular
day, the time for that day must be reset by setting the start
time to the same as the stop time. If the row "all" is used, all
days in the period are set according to that row.
Time period: The start and stop time for the selected day
for scheduling are selected here.
Adjustment: The desired fan speed is set here.
Conflict: If two settings conflict with each other, a red ex-
clamation mark is displayed.
TIP
If you wish to set similar scheduling for every day
of the week start by filling in “all” and then chan-
ging the desired days.
TIP
Set the stop time earlier than the start time so that
the period extends beyond midnight. Scheduling
then stops at the set stop time the day after.
Scheduling always starts on the date that the start
time is set for.
Caution
A significant change over a longer period of time
may cause poor indoor environment and worse
operating economy.
17Chapter 3 | F370 – at your serviceNIBE F370

MENU 1.9 - ADVANCED
advanced 1.9
heating curve
external adjustment
min. flow line temp.
room sensor settings
fan return time
own curve
Menu advanced has orange text and is intended for the
advanced user. This menu has several sub-menus.
heating curve Setting the heating curve slope.
external adjustment Setting the heat curve offset when
the external contact is connected.
min. flow line temp. Setting minimum permitted flow line
temperature.
room sensor settings Settings regarding the room sensor.
fan return time Fan return time settings in the event of
temporary ventilation speed change.
own curve Setting own heat curve.
point offset Setting the offset of the heating curve at a
specific outdoor temperature.
night cooling Setting night cooling.
MENU 1.9.1 - HEATING CURVE
heating curve
heating curve 1.9.1.1
system
outdoor temp. °C
flow temperature °C
Setting range: 0 - 15
Default value: 5
The prescribed heating curve for your house can be viewed
in the menu heating curve . The task of the heating curve
is to give an even indoor temperature, regardless of the
outdoor temperature, and thereby energy efficient operation.
It is from this heating curve that the heat pump's control
computer determines the temperature of the water to the
heating system, supply temperature, and therefore the in-
door temperature. Select the heating curve and read off
how the supply temperature changes at different outdoor
temperatures here.
Caution
With underfloor heating systems, max flow line
temperature should normally be set to between
35 and 45 °C.
Check the max temperature for your floor with
your installer/floor supplier.
TIP
Wait 24 hours before making a new setting, so that
the room temperature has time to stabilise.
If it is cold outdoors and the room temperature is
too low, increase the curve slope by one incre-
ment.
If it is cold outdoors and the room temperature is
too high, lower the curve slope by one increment.
If it is warm outdoors and the room temperature
is too low, increase the curve offset by one incre-
ment.
If it is warm outdoors and the room temperature
is too high, lower the curve offset by one incre-
ment.
MENU 1.9.2 - EXTERNAL ADJUSTMENT
Set the temperature (with room sensor
installed and activated):
Setting range: 5 – 30 °C
Default value: 20
Setting the temperature (without room
sensors activated):
Setting range: -10 to +10.
Default value: 0
external adjustment 1.9.2
climate system 1
climate system 2
climate system 3
climate system 4
°C
°C
Connecting an external contact, for example, a room ther-
mostat or a timer allows you to temporarily or periodically
raise or lower the room temperature while heating. When
the contact is on, the heating curve offset is changed by
NIBE F370Chapter 3 | F370 – at your service18

the number of steps selected in the menu. If a room sensor
is installed and activated the desired room temperature (°C)
is set.
If there is more than one climate system the setting can be
made separately for each system.
MENU 1.9.3 - MIN. FLOW LINE TEMP.
heating
Setting range: 20-70 °C
Default value: 20 °C
min. flow line temp. 1.9.3
climate system 1
climate system 2
climate system 3
climate system 4
°C
°C
°C
°C
20
20
20
20
Set the minimum temperature on the supply temperature
to the climate system. This means that F370 never calculates
a temperature lower than that set here.
If there is more than one climate system the setting can be
made separately for each system.
TIP
The value can be increased if you have, for ex-
ample, a cellar that you always want to heat, even
in summer.
You may also need to increase the value in "stop
heating" menu 4.9.2 "auto mode setting".
MENU 1.9.4 - ROOM SENSOR SETTINGS
factor system
Setting range: 0.0 - 6.0
Default value: 2.0
room sensor settings 1.9.4
heating factor system 1
control room sensor syst 2
control room sensor syst 3
heating factor system 3
control room sensor syst 1
control room sensor syst 4
Room sensors to control the room temperature can be activ-
ated here.
Caution
A slow heating system such as underfloor heating
may not be suitable for control using the installa-
tion’s room sensors.
Here you can set a factor (a numerical value) that determines
how much an over or sub normal temperature (the difference
between the desired and actual room temperature) in the
room is to affect the supply temperature to the climate
system. A higher value gives a greater and faster change of
the heating curve's set offset.
NOTE
Too high a set value for "factor system" can (de-
pending on your climate system) produce an un-
stable room temperature.
If several climate systems are installed the above settings
can be made for the relevant systems.
MENU 1.9.6 - FAN RETURN TIME
speed 1-4
Setting range: 1 – 99 h
Default value: 4 h
fan return time 1.9.6
speed 1
speed 2
speed 3
speed 4
hrs
hrs
hrs
hrs
Here you select the return time for temporary speed change
(speed 1-4) on the ventilation in menu 1.2.
Return time is the time it takes before ventilation speed re-
turns to normal.
MENU 1.9.7 - OWN CURVE
supply temperature
Setting range: 0 – 80 °C
19Chapter 3 | F370 – at your serviceNIBE F370

own curve 1.9.7
flow line temp. at -20 °C
flow line temp. at -10 °C
flow line temp. at 0 °C
flow line temp. at 10 °C
flow line temp. at -30 °C
flow line temp. at 20 °C
°C
°C
°C
°C
°C
°C
You can create your own heating curve here, if there are
special requirements, by setting the desired supply temper-
atures for different outdoor temperatures.
Caution
Curve 0 in menu 1.9.1 must be selected for own
curve to apply.
MENU 1.9.8 - POINT OFFSET
outdoor temp. point
Setting range: -40 – 30 °C
Default value: 0 °C
change in curve
Setting range: -10 – 10 °C
Default value: 0 °C
point offset 1.9.8
change in curve
outdoor temp. point
°C
°C
outdoor temp. °C
flow temperature °C
Select a change in the heating curve at a certain outdoor
temperature here. One step is usually enough to change the
room temperature by one degree, but in some cases several
steps may be required.
The heat curve is affected at ± 5°C from set outdoor temp.
point.
It is important that the correct heating curve is selected so
that the room temperature is experienced as even.
TIP
If it is cold in the house, at, for example -2 °C,
"outdoor temp. point" is set to "-2" and "change in
curve" is increased until the desired room temper-
ature is maintained.
Caution
Wait 24 hours before making a new setting, so that
the room temperature has time to stabilise.
MENU 1.9.9 - NIGHT COOLING
start temp. exhaust air
Setting range: 20 – 30 °C
Default value: 25 °C
min diff. outdoor-exhaust
Setting range: 3 – 10 °C
Default value: 6 °C
night cooling 1.9.9
min diff. outdoor-exhaust
start temp. exhaust air
°C
°C
night cooling
Activate night cooling here.
When the temperature in the house is high and the outdoor
temperature is lower, a cooling effect can be obtained by
forcing the ventilation.
If the temperature difference between the exhaust air and
the outdoor air temperature is greater than the set value
("min diff. outdoor-exhaust") and the exhaust air temperat-
ure is higher than the set value ("start temp. exhaust air"),
run the ventilation at speed 4 until one of the conditions is
no longer met.
Caution
Night cooling can only be activated when house
heating has been deactivated. This is done in menu
4.2.
NIBE F370Chapter 3 | F370 – at your service20