Nibe F1345 Series User manual

Operating manual
LEK
NIBE™ F1345
Ground source heat pump
OHB GB 1521-1
331035

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 6.
How to scroll through menus and make different settings is described on page 9.
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 11.
Increase hot water volume
2X
1X
To temporarily increase the amount of hot water (if a hot water heater is installed to your F1345), 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 19.
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 46 for instructions.

Table of Contents
21 Important information
2Installation data
3Safety information
62 Control - Introduction
6Display unit
7Menu system
113 Control - Menus
11Menu 1 - INDOOR CLIMATE
19Menu 2 - HOT WATER
21Menu 3 - INFO
23Menu 4 - HEAT PUMP
29Menu 5 - SERVICE
394 Service
39Service actions
465 Disturbances in comfort
46Info-menu
46Manage alarm
46Troubleshooting
48Alarm list
55Index
1Table of Contents |NIBE™ F1345

Installation data
F1345Product
Serial number Master
Serial number, Slave 1
Serial number, Slave 2
Serial number, Slave 3
Serial number, Slave 4
Serial number, Slave 5
Serial number, Slave 6
Serial number, Slave 7
Serial number, Slave 8
Installation date
Installer
Type of brine -
Mixing ratio/freezing point
Active drilling depth/collector
length
Accessories
✔
SetFactory
settings
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 accord-
ing to instructions in NIBE's installer manual and applic-
able regulations.
_________________________Signed__________________Date
NIBE™ F1345Chapter 1 | Important information2
1 Important information

Safety information
This manual describes installation and service proced-
ures for implementation by specialists.
This appliance is designed for use in a
home environment and not intended
to be used by persons (including chil-
dren) with reduced physical, sensory or
mental capabilities, or lack of experi-
ence and knowledge, unless they have
been given supervision or instruction
concerning use of the appliance by a
person responsible for their safety. This
in accordance to applicable parts of the
low-voltage directive 2006/95/EC, LVD.
The appliance is also intended for use
by experts or trained users in shops,
hotels, light industry, on farms and in
similar environments. This in accordance
to applicable parts of the machinery
directive 2006/42/EC.
Children should be supervised to ensure
that they do not play with the appli-
ance.
This is an original instruction manual.
Translation is not allowed without ap-
proval from NIBE.
Rights to make any design or technical
modifications are reserved.
©NIBE 2015.
NOTE
Do not start the heat pump, if
there is a risk that the water in
the system has frozen.
Symbols
NOTE
This symbol indicates danger to machine or
person.
Caution
This symbol indicates important information
about what you should observe when main-
taining your installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
Marking
F1345 is CE marked and fulfils IP21.
The CE marking means that NIBE ensures that the
product meets all regulations that are placed on it
based on relevant EU directives. The CE mark is obligat-
ory for most products sold in the EU, regardless where
they are made.
IP21 means that the product can be touched by hand,
that objects with a diameter larger than or equivalent
to 12.5 mm cannot penetrate and cause damage and
that the product is protected against vertically falling
drops.
3Chapter 1 | Important informationNIBE™ F1345

Safety precautions
Caution
The installation must be carried out by a qualified installer.
If you install the system yourself, serious problems may occur, for
example water leaks, refrigerant leaks, electric shocks, fire and
personal injury, as a result of a system malfunction.
Use original accessories and the stated components for the
installation.
If parts other than those stated by us are used, water leaks, electric
shocks, fire and personal injury may occur as the unit may not
work properly.
Install the unit in a location with good support.
Unsuitable installation locations can cause the unit to fall and
cause material damage and personal injury. Installation without
sufficient support can also cause vibrations and noise.
Ensure that the unit is stable when installed, so that it can
withstand earthquakes and strong winds.
Unsuitable installation locations can cause the unit to fall and
cause material damage and personal injury.
The electrical installation must be carried out by a qualified
electrician and the system must be connected as a separate
circuit.
Power supply with insufficient capacity and incorrect function
can cause electric shocks and fire.
Use types of pipe and tools stated for this type of refrigerant.
Using existing parts for other refrigerants can cause breakdowns
and serious accidents due to process circuit bursts.
Do not perform any repairs yourself. Consult the dealer if
the system requires repair.
Incorrectly performed repairs can cause water leakage, refrigerant
leakage, electric shocks or fire.
Consult the dealer or an expert regarding removal of the
heat pump.
Incorrect installation can cause water leakage, refrigerant leaks,
electric shocks or fire.
Switch off the power supply in the event of a service or in-
spection.
If the power supply is not shut off, there is a risk of electric shocks
and damage due to the rotating fan.
Do not run the unit with removed panels or protection.
Touching rotating equipment, hot surfaces or high voltage parts
can cause personal injury due to entrapment, burns or electric
shocks.
Cut the power before starting electrical work.
Failure to cut the power can cause electric shocks, damage and
incorrect function of the equipment.
Care
Do not use the unit for specialist purposes such as for storing
food, cooling precision instruments, freeze-conservation of
animals, plants or art.
This can damage the items.
Dispose of any packaging material correctly.
Any remaining packaging material can cause personal injury as
it may contain nails and wood.
Do not touch any buttons with wet hands.
This can cause electric shocks.
Do not shut off the power supply immediately after operation
has start.
Wait at least 5 minutes, otherwise there is a risk of water leakage
or breakdown.
Do not control the system with the main switch.
This can cause fire or water leakage. In addition, the fan can start
unexpectedly, which can cause personal injury.
Serial number
The serial number can be found at the bottom right of
the front cover, on the type plate (PF1, see IHB chapter
Heat Pump Design for location) and in the info menu
(menu 3.1).
Serial number
Caution
Always give the product's serial number (14
digits) when reporting a fault.
Country specific information
Installer manual
This installer manual must be left with the customer.
NIBE™ F1345Chapter 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 JizerouCZ
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 A/S, Member of the Nibe Group, Brogårdsvej 7, 6920 VidebækDK
Tel: [phone] Fax: [phone] E-mail: [email protected] www.volundvt.dk
NIBE Energy Systems OY, Juurakkotie 3, 01510 VantaaFI
Puh: 09-274 697 0 Fax: [phone] E-mail: inf[email protected] www.nibe.fi
NIBE Energy Systems France Sarl, Zone industrielle RD 28, Rue du Pou du Ciel, 01600 ReyrieuxFR
Tel : [phone] Fax : [phone] E-mail: [email protected] www.nibe.fr
NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way, Chesterfield S41 9QGGB
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.co.uk
NIBE Energietechniek B.V., Postbus 634, NL 4900 AP OosterhoutNL
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibenl.nl
ABK AS, Brobekkveien 80, 0582 Oslo, Postadresse: Postboks 64 Vollebekk, 0516 OsloNO
Tel. sentralbord: [phone] E-mail: [email protected] www.nibeenergysystems.no
NIBE-BIAWAR Sp. z o. o. Aleja Jana Pawła II 57, 15-703 BIAŁYSTOKPL
Tel: [phone] Fax: [phone] E-mail: [e-mail] www.biawar.com.pl
© "EVAN" 17, per. Boynovskiy, Nizhny NovgorodRU
Tel./fax [phone] E-mail: [email protected] www.nibe-evan.ru
NIBE AB Sweden, Box 14, Hannabadsvägen 5, SE-285 21 MarkarydSE
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.se
For countries not mention in this list, please contact Nibe Sweden or check www.nibe.eu for more information.
5Chapter 1 | Important informationNIBE™ F1345

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
F1345
Display
Instructions, settings and operational informa-
tion 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:
■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 con-
firmed.
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 illuminates
yellow.
F
NIBE™ F1345Chapter 2 | Control - Introduction6
2 Control - Introduction

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
Information about
operation
Estimated amount of hot water
Slave
SERVICE
slave 1
F1345
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.
Menu 1 - INDOOR CLIMATE
Setting and scheduling the indoor climate. See page
11.
Menu 2 - HOT WATER
Setting and scheduling hot water production. See page
19.
This menu only appears if a water heater is docked to
the heat pump.
Menu 3 - INFO
Display of temperature and other operating informa-
tion and access to the alarm log. See page 21.
This menu is also set in the slave heat pump's limited
menu system.
Menu 4 - HEAT PUMP
Setting time, date, language, display, operating mode
etc. See page 23.
Menu 5 - SERVICE
Advanced settings. These settings are only intended
for installers or service engineers. The menu is visible
when the Back button is pressed for 7 seconds, when
you are in the start menu. See page 29.
This menu is also set in the slave heat pump's limited
menu system.
7Chapter 2 | Control - IntroductionNIBE™ F1345

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 information in menu 3.1
that you should note.
These two symbols indicate whether the
compressor or addition is blocked in
F1345.
These can, for example, be blocked de-
pending on which operating mode is se-
lected in menu 4.2, if blocking is sched-
uled in menu 4.9.5 or if an alarm has oc-
curred 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 F1345 has
contact with 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 solar
heating is active.
Accessory needed.
This symbol is displayed in menu 3.1, if
pool heating is active.
Accessory needed.
This symbol is displayed in menu 3.1, if
cooling is active.
Accessory needed.
NIBE™ F1345Chapter 2 | Control - Introduction8

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 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.
Setting a value
time & date4.4
time
day
year
month
24 hrs
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.
9Chapter 2 | Control - IntroductionNIBE™ F1345

Use the virtual keyboard
Different keyboards
In some menus where text may require entering, a vir-
tual keyboard is available.
Depending on the menu, you can gain access to differ-
ent character sets which you can select using the con-
trol knob. To change character table, press the Back
button. If a menu only has one character set the key-
board 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 con-
trol 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
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.
NIBE™ F1345Chapter 2 | Control - Introduction10

Menu 1 - INDOOR CLIMATE Overview
1.1.1 - temperature heating1.1 - temperature1 - INDOOR CLIMATE
1.1.2 - temperature cooling *
1.1.3 - rel. humidity *
1.2 - ventilation
1.3.1 - scheduling heating1.3 - scheduling
1.3.2 - scheduling cooling *
1.3.2 - scheduling ventilation *
1.9.1.1 heating curve1.9.1 - curve1.9 - advanced
1.9.1.2 - cooling curve *
1.9.2 - external adjustment
1.9.3.1 - min. flow line temp. heating1.9.3 - min. flow line temp.
1.9.3.2 - min. flow line temp. cooling *
1.9.4 - room sensor settings
1.9.5 - cooling settings *
1.9.6 - fan return time *
1.9.7.1 - own heating curve1.9.7 - own curve
1.9.7.2 - own cooling curve *
1.9.8 - point offset
1.9.9 - night cooling
1.9.11 - +Adjust
* Accessories are needed.
Sub-menus
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
system. The status information shows the set values
for the climate system.
ventilation Setting the fan speed. The status informa-
tion shows the selected setting. This menu is only dis-
played if the exhaust air module is connected (access-
ory).
scheduling Scheduling heating, cooling and ventila-
tion. Status information "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 priorit-
ised), "active" displays if any part of the schedule is
active, otherwise it displays " off".
advanced Setting of heat curve, adjusting with extern-
al contact, minimum value for supply temperature,
room sensor, cooling function and +Adjust.
Menu 1.1 - temperature
If the house has several climate systems, this is indicated
on the display by a thermometer for each system.
Select whether you want to set heating, cooling or rel-
ative humidity in menu 1.1 and then, set the desired
temperature in the following menu "temperature
heating/cooling/humidity".
Set the temperature (with room sensors installed
and activated):
heating
Setting range: 5 – 30 °C
Default value: 20
cooling (accessory is required)
Setting range: 5 – 30 °C
Default value: 25
11Chapter 3 | Control - MenusNIBE™ F1345
3 Control - Menus

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: 0
The display shows the set values for heating (curve
offset). To increase or reduce 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 re-
quired.
Setting the desired value. The new value is shown on
the right-hand side of the symbol in the display.
Setting the relative humidity: (accessory is re-
quired)
Setting range: 30 to 90 %
Factory setting: 60 %
The menu is only displayed if limit RH is activated in
menu 5.16.
The display shows the value set for relative humidity.
To change how F1345 is run, in relation to relative hu-
midity, increase or decrease the value given on the
display.
Use the control knob to set the required value. Confirm
the new setting, by pressing the OK button.
Caution
An increase in the room temperature can be
slowed by the thermostats for the radiators or
under floor heating. Therefore, open the
thermostats fully, except in those rooms where
a cooler temperature is required, e.g. bed-
rooms.
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 by one increment.
If it is cold outdoors and the room temperature
is too high, lower the curve slope menu 1.9.1
by one increment.
If it is warm outdoors and the room temperat-
ure is too low, increase the value in menu 1.1
by one increment.
If it is warm outdoors and the room temperat-
ure is too high, reduce the value in menu 1.1
by one increment.
Menu 1.2 - ventilation (accessory required)
Setting range: normal and speed 1-4
Default value: normal
The ventilation in the accommodation can be tempor-
arily 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.
Menu 1.3 - scheduling
In the menu scheduling indoor climate (heating/cool-
ing/ventilation) is scheduled for each weekday.
You can also schedule a longer period during a selected
period (vacation) in menu 4.7.
NIBE™ F1345Chapter 3 | Control - Menus12

Menu 1.3.1 - heating
Increases or decreases in the accommodation temper-
ature can be scheduled here for up to three time peri-
ods 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
we
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 activ-
ated here. Set times are not affected at deactivation.
System: Which climate system the schedule is for is
selected here. This alternative is only displayed if more
than one climate system is present.
Day: Select which day or days of the week the schedule
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 line "all" is used, all days in the period are set for
these times.
Time period: The start and stop time for the selected
day for scheduling are selected here.
Adjusting: How much the heating curve is to be offset
in relation to menu 1.1 during scheduling is set here.
If the rooms sensor is installed the desired room tem-
perature is set in °C.
Conflict: If two settings conflict with each other a red
exclamation mark is displayed.
TIP
If you wish to set similar scheduling for every
day of the week start by filling in “all” and then
changing 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
combination with underfloor heating will not
give a noticeable difference in room temperat-
ure.
Menu 1.3.2 - cooling (accessory required)
Here you can schedule when cooling is permitted in
the accommodation for up to two different time peri-
ods per day.
SCHEDULING COOLING 1.3.2
activated
schedule 2schedule 1
all
mon
tues
we
thur
fri
sat
sun
21:30 - 06:00 off
Time periodDay
Activated Schedule
Conflict
Schedule: The schedule to be changed is selected here.
Activated: Scheduling for the selected period is activ-
ated here. Set times are not affected at deactivation.
Day: Select which day or days of the week the schedule
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 line "all" is used, all days in the period are set for
these times.
Time period: The start and stop time for the selected
day for scheduling are selected here.
Here, you set when active cooling will not be permitted.
Conflict: If two settings conflict with each other a red
exclamation mark is displayed.
TIP
If you wish to set similar scheduling for every
day of the week start by filling in “all” and then
changing the desired days.
13Chapter 3 | Control - MenusNIBE™ F1345

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.
Menu 1.3.3 - ventilation (accessory required)
Increases or decreases in the ventilation to the accom-
modation can be scheduled here for up to two time
periods per day.
all
mon
tues
we
thur
fri
sat
sun
activated
schedule 2schedule 1
SCHEDULING VENTILATION 1.3.3
21:30 - 06:00 speed 3
Time period AdjustingDay
Activated Schedule
Conflict
Schedule: The schedule to be changed is selected here.
Activated: Scheduling for the selected period is activ-
ated here. Set times are not affected at deactivation.
Day: Select which day or days of the week the schedule
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 line "all" is used, all days in the period are set for
these times.
Time period: The start and stop time for the selected
day for scheduling are selected here.
Adjusting: The desired fan speed is set here.
Conflict: If two settings conflict with each other a red
exclamation mark is displayed.
TIP
If you wish to set similar scheduling for every
day of the week start by filling in “all” and then
changing 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.
Menu 1.9 - advanced
Menu advanced has orange text and is intended for
the advanced user. This menu has several sub-menus.
curve Setting the curve slope for heating and cooling.
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.
cooling settings Settings for cooling.
fan return time Fan return time settings in the event
of temporary ventilation speed change.
own curve Setting own curve for heating and cooling.
point offset Setting the offset of the heating curve or
cooling curve at a specific outdoor temperature.
night cooling Setting night cooling.
+Adjust Setting how much effect +Adjust will have
on calculated supply temperature for underfloor
heating. The higher the value is the greater the effect.
Menu 1.9.1 - curve
heating curve
Setting range: 0 - 15
Default value: 9
cooling curve (accessory required)
Setting range: 0 - 9
Default value: 0
You can select heating or cooling in the curve menu.
The next menu (heating curve/cooling curve) shows
the heating and cooling curves for your house. The task
of the curve is to give an even indoor temperature, re-
gardless of the outdoor temperature, and thereby en-
ergy efficient operation. It is from these heat curves
that the heat pump’s control computer determines the
temperature of the water to the system, the supply
temperature, and therefore the indoor temperature.
Select the curve and read off how the supply temper-
ature changes at different outdoor temperatures here.
The number to the far right of "system" displays which
system you have selected the heating curve/cooling
curve for.
NIBE™ F1345Chapter 3 | Control - Menus14

Curve coefficient
The slopes of the heating /cooling curves indicate how
many degrees the supply temperature is to be in-
creased/reduced when the outdoor temperature
drops/increases. A steeper slope means a higher supply
temperature for heating or a lower supply temperature
for cooling at a certain outdoor temperature.
The optimum slope depends on the climate conditions
in your location, if the house has radiators or under
floor heating and how well insulated the house is.
The curve is set when the heating installation is in-
stalled, but may need adjusting later. Normally, the
curve will not need further adjustment.
Caution
In the event of making fine adjustments of the
indoor temperature, the curve must be offset
up or down instead, this is done in menu 1.1
temperature .
Curve offset
An offset of the curve means that the supply temperat-
ure changes as much for all the outdoor temperatures,
e.g. that a curve offset of +2 steps increases the supply
temperature by 5 C at all outdoor temperatures.
Flow line temperature– maximum and minimum
values
Because the flow line temperature cannot be calculated
higher than the set maximum value or lower than the
set minimum value the heating curve flattens out at
these temperatures.
Caution
Underfloor heating systems are normally max
flow line temperature set between 35 and 45
°C.
Must be restricted with underfloor cooling
min. flow line temp. to prevent condensation.
Check the max temperature for your floor with
your installer/floor supplier.
The figure at the end of the curve indicates the curve
slope. The figure beside the thermometer gives the
curve offset. Use the control knob to set a new value.
Confirm the new setting by pressing the OK button.
Curve 0 is an own curve created in menu 1.9.7.
To select another curve (slope):
NOTE
If you only have one climate system, the num-
ber of the curve is already marked when the
menu window opens.
1. Select the climate system (if more than one) for
which the curve is to be changed.
2. When the climate system selection has been con-
firmed, the curve number is marked.
3. Press the OK button to access the setting mode
4. Select a new curve. The curves are numbered from
0 to 15, the greater the number, the steeper the
slope and the greater the supply temperature.
Curve 0 means that own curve (menu 1.9.7) is
used.
5. Press the OK button to exit the setting.
To read off a curve:
1. Turn the control knob so that the ring on the shaft
with the outdoor temperature is marked.
2. Press the OK button.
3. Follow the grey line up to the curve and out to the
left to read off the value for the supply temperature
at the selected outdoor temperature.
4. You can now select to take read outs for different
outdoor temperatures by turning the control knob
to the right or left and read off the corresponding
flow temperature.
5. Press the OK or Back button to exit read off mode.
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 in-
crement.
If it is cold outdoors and the room temperature
is too high, lower the curve slope by one incre-
ment.
If it is warm outdoors and the room temperat-
ure is too low, increase the curve offset by one
increment.
If it is warm outdoors and the room temperat-
ure is too high, lower the curve offset by one
increment.
Menu 1.9.2 - external adjustment
climate system
Setting range: -10 to +10 or desired room temperat-
ure if the room sensor is installed.
Default value: 0
Connecting an external contact, for example, a room
thermostat or a timer allows you to temporarily or
periodically raise or lower the room temperature while
heating. When the contact is on, the heat curve offset
is changed by 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.
15Chapter 3 | Control - MenusNIBE™ F1345

Menu 1.9.3 - min. flow line temp.
heating
Setting range: 5-70 °C
Default value: 20 °C
cooling (accessory required)
Setting range: 7-30 °C
Factory setting: 18 °C
In menu 1.9.3 you select heating or cooling, in the next
menu (min. supply temp.heating/cooling) set the
minimum temperature on the supply temperature to
the climate system. This means that F1345 never calcu-
lates 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 set-
ting".
Menu 1.9.4 - room sensor settings
factor system
heating
Setting range: 0.0 - 6.0
Factory setting heating: 2.0
cooling (accessory required)
Setting range: 0.0 - 6.0
Factory setting cooling: 1.0
Room sensors to control the room temperature can be
activated here.
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.
Here you can set a factor (a numerical value) that de-
termines 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 tem-
perature 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
(depending on your climate system) produce
an unstable room temperature.
If several climate systems are installed the above set-
tings can be made for the relevant systems.
Menu 1.9.5 - cooling settings (accessory re-
quired)
heat/cool sen.
Factory setting: none
set pt value cool/heat sensor
Setting range: 5 - 40 °C
Default value: 21
heat at room under temp.
Setting range: 0.5 - 10.0 °C
Default value: 1.0
cool at room over temp.
Setting range: 0.5 - 10.0 °C
Default value: 3.0
start passive cooling
Setting range: 10 – 500 GM
Factory setting: 30 GM
start active cooling
Setting range: 10 – 300 GM
Factory setting: 90 GM
step difference compressors
Setting range: 10 – 150
Default value: 30
degree minutes cooling
Setting range: -3000 - 3000 cooling degree minutes
Factory setting: 0
heat dump 24h-function
Setting range: on/off
Factory setting: off
closingtime for cool dump
Setting range: 0 - 100 s
Factory setting: 0 s
max compr. in active cooling
Setting range: 0 - 18
Factory setting: 18
NIBE™ F1345Chapter 3 | Control - Menus16

time betw. switch heat/cool
Setting range: 0 - 48 h
Default value: 2
mixing valve amplifier
Setting range: 0.1 –10.0
Default value: 1.0
mixing valve step delay
Setting range QN41: 10 – 300 s
Setting range QN18 and QN36: 10 – 500 s
Default values: 30 s
You can use F1345 to cool the house during hot periods
of the year.
Caution
Certain setting options only appear if their
function is installed and activated in F1345.
heat/cool sen.
Caution
When the room sensor for cooling/heating
(BT74) is installed and activated in F1345, you
can select another sensor for control of F1345.
Here, you can set which sensor will control at which
indoor temperature F1345 is to switch between heating
and cooling operation respectively.
set pt value cool/heat sensor
Here you can set at which indoor temperature F1345
is to shift between heating respectively cooling opera-
tion.
heat at room under temp.
Here you can set how far the room temperature can
drop below the desired temperature before F1345
switches to heating operation.
cool at room over temp.
Here you can set how high the room temperature can
increase above the desired temperature before F1345
switches to cooling operation.
start passive cooling
Here you can set when passive cooling is to start.
Degree minutes are a measurement of the current
heating demand in the house and determine when the
compressor, cooling operation respectively additional
heat will start/stop.
start active cooling
Here you can set when active cooling is to start.
Degree minutes are a measurement of the current
heating demand in the house and determine when the
compressor, cooling operation respectively additional
heat will start/stop.
step difference compressors
Caution
This setting option only appears if cooling is
activated in menu 5.2.4.
The degree minute difference for controlling when the
next compressor is to start is set here.
degree minutes cooling
This selection is only available when the connected
accessory itself counts cooling degree minutes.
After a min or max value has been set, the system will
automatically set the real value in relation to the
number of compressors that are running cooling.
heat dump 24h-function
If the heating is to be shunted to max supply line tem-
perature if there has been a heating requirement in
the last 24 hours it is set here.
closingtime for cool dump
Here, you set the number of seconds per time period
that the shunt valve must be closed when in ”Start of
active cooling” mode.
max compr. in active cooling
Set the max number of compressors that may be used
for cooling in those cases where several compressors
are available here.
time betw. switch heat/cool
This selection is only available in cooling 2 pipe systems.
Here you can set how long F1345 is to wait before it
returns to heating mode when the cooling demand
has ceased or vice versa.
mixing valve amplifier and mixing valve step delay
Caution
This setting option only appears if passive
cooling is activated in menu 5.2.4.
Shunt reinforcement and shunt wait time for the
cooling system are set here.
Menu 1.9.6 - fan return time (accessory re-
quired)
speed 1-4
Setting range: 1 – 99 h
Default value: 4 h
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
returns to normal.
17Chapter 3 | Control - MenusNIBE™ F1345

Menu 1.9.7 - own curve
supply temperature
heating
Setting range: 5 – 70 °C
cooling (accessory required)
Setting range: -5 – 40 °C
Create your own heating or cooling curve here, by
setting the desired supply temperatures 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
Select a change in the heating curve at a certain out-
door 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 temperature 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 (accessory re-
quired)
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
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 temperature 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.
Menu 1.9.11 - +Adjust
- degree of effect
Setting range: 0.1 – 1.0
Default value: 0.5
Using +Adjust, the installation communicates with the
underfloor heating's control centre* and adjusts the
heat curve and calculated supply temperature accord-
ing to the underfloor heating system's reconnection.
Here you can activate the climate systems you want
+Adjust to affect. You can also set how much effect
+Adjust is to have on calculated supply temperature.
The higher the value, the greater the effect.
*Support for +Adjust required
NOTE
+Adjust must first be selected in menu 5.4 ”soft
inputs/outputs”.
NIBE™ F1345Chapter 3 | Control - Menus18