Installer manual NIBE™ F1255PC

Installer manual
NIBE™ F1255PC
Ground source heat pump
LEK
IHB GB 1617-4
331170
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 34.
How to scroll through menus and make different settings is described on page 36.
Set the indoor climate
2X
The mode for setting the indoor temperature is accessed by pressing the OK button twice, when in the start mode
in the main menu.
Increase hot water volume
1X
2X
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.
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 55 for instructions.
Table of Contents
1 Important information
Safety information
2 Delivery and handling
Transport
Assembly
Supplied components
Removing the covers
Removing parts of the insulation
3 The heat pump design
4
4
7
7
7
8
8
9
10
General
Distribution boxes
Cooling section
10
12
13
4 Pipe connections
14
General
Dimensions and pipe connections
Brine side
Heating medium side
Water heater
Docking alternatives
19
General
Connections
Settings
Optional connections
Connecting accessories
19
21
22
24
28
6 Commissioning and adjusting
29
Preparations
Filling and venting
Start guide
Post adjustment and venting
Setting the cooling/heating curve
29
29
30
31
32
Display unit
Menu system
8 Control - Menus
Menu 1 - INDOOR CLIMATE
Menu 2 - HOT WATER
Menu 3 - INFO
Menu 4 - HEAT PUMP
Menu 5 - SERVICE
NIBE™ F1255PC
49
Service actions
49
10 Disturbances in comfort
Info menu
Manage alarm
Troubleshooting
55
55
55
55
11 Accessories
57
12 Technical data
59
Dimensions and setting-out coordinates
Technical specifications
Energy labelling
Index
59
60
65
70
14
15
15
16
16
16
5 Electrical connections
7 Control - Introduction
9 Service
34
34
35
38
38
38
38
39
40
Table of Contents |
3
1 Important information
Safety information
This manual describes installation and service procedures
for implementation by specialists.
This appliance can be used by children
aged from 8 years and above and persons with reduced physical, sensory or
mental capabilities or lack of experience
and knowledge if they have been given
supervision or instruction concerning use
of the appliance in a safe way and understand the hazards involved. Children shall
not play with the appliance. Cleaning
and user maintenance shall not be made
by children without supervision.
Rights to make any design or technical
modifications are reserved.
©NIBE 2016.
Symbols
NOTE
This symbol indicates danger to machine or
person.
Serial number
Caution
Always give the product's serial number (14 digits) when reporting a fault.
Recovery
Leave the disposal of the packaging to the installer who installed the product or to special
waste stations.
Do not dispose of used products with normal
household waste. It must be disposed of at a
special waste station or dealer who provides this type of
service.
Improper disposal of the product by the user results in
administrative penalties in accordance with current legislation.
Country specific information
Installer manual
This installer manual must be left with the customer.
Caution
This symbol indicates important information
about what you should observe when maintaining your installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
Marking
The CE marking means that NIBE ensures that the
product meets all regulations that are placed on it based
on relevant EU directives. The CE mark is obligatory for
most products sold in the EU, regardless where they are
made.
Serial number
The serial number can be found at the bottom right of
the front cover and in the info menu (menu 3.1).
You can also find the serial number on the type plate
PF1, for location see the section for the Heat pump
design in the installer manual.
4
Chapter 1 | Important information
NIBE™ F1255PC
Inspection of the installation
Current regulations require the heating installation to be inspected before it is commissioned. The inspection must
be carried out by a suitably qualified person. In addition, fill in the page for the installation data in the User Manual.
✔
Description
Notes
Signature Date
Brine (page 15)
System flushed
System vented
Antifreeze
Level/Expansion vessel
Particle filter
Safety valve
Shut off valves
Circulation pump setting
Heating medium (page 16)
System flushed
System vented
Expansion vessel
Particle filter
Safety valve
Shut off valves
Circulation pump setting
Electricity (page 19)
Connections
Main voltage
Phase voltage
Fuses heat pump
Fuses property
Outside sensor
Room sensor
Current sensor
Safety breaker
Earth circuit-breaker
Setting of emergency mode thermostat
NIBE™ F1255PC
Chapter 1 | Important information
5
Contact information
AT KNV Energietechnik GmbH, Gahberggasse 11, 4861 Schörfling
Tel: +43 (0)7662 8963-0 Fax: +43 (0)7662 8963-44 E-mail: mail@knv.at www.knv.at
CH NIBE Wärmetechnik c/o ait Schweiz AG, Industriepark, CH-6246 Altishofen
Tel: (52) 647 00 30 Fax: (52) 647 00 31 E-mail: info@nibe.ch www.nibe.ch
CZ Druzstevni zavody Drazice s.r.o, Drazice 69, CZ - 294 71 Benatky nad Jizerou
Tel: +420 326 373 801 Fax: +420 326 373 803 E-mail: nibe@nibe.cz www.nibe.cz
DE NIBE Systemtechnik GmbH, Am Reiherpfahl 3, 29223 Celle
Tel: 05141/7546-0 Fax: 05141/7546-99 E-mail: info@nibe.de www.nibe.de
DK Vølund Varmeteknik A/S, Member of the Nibe Group, Brogårdsvej 7, 6920 Videbæk
FI
Tel: 97 17 20 33 Fax: 97 17 29 33 E-mail: info@volundvt.dk www.volundvt.dk
NIBE Energy Systems OY, Juurakkotie 3, 01510 Vantaa
Puh: 09-274 697 0 Fax: 09-274 697 40 E-mail: info@nibe.fi www.nibe.fi
FR NIBE Energy Systems France Sarl, Zone industrielle RD 28, Rue du Pou du Ciel, 01600 Reyrieux
Tel : 04 74 00 92 92 Fax : 04 74 00 42 00 E-mail: info@nibe.fr www.nibe.fr
GB NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way, Chesterfield S41 9QG
Tel: 0845 095 1200 Fax: 0845 095 1201 E-mail: info@nibe.co.uk www.nibe.co.uk
NL NIBE Energietechniek B.V., Postbus 634, NL 4900 AP Oosterhout
Tel: 0168 477722 Fax: 0168 476998 E-mail: info@nibenl.nl www.nibenl.nl
NO ABK AS, Brobekkveien 80, 0582 Oslo, Postadresse: Postboks 64 Vollebekk, 0516 Oslo
PL
Tel. sentralbord: +47 23 17 05 20 E-mail: post@abkklima.no www.nibeenergysystems.no
NIBE-BIAWAR Sp. z o. o. Aleja Jana Pawła II 57, 15-703 BIAŁYSTOK
Tel: 085 662 84 90 Fax: 085 662 84 14 E-mail: sekretariat@biawar.com.pl www.biawar.com.pl
RU © "EVAN" 17, per. Boynovskiy, Nizhny Novgorod
SE
Tel./fax +7 831 419 57 06 E-mail: info@evan.ru www.nibe-evan.ru
NIBE AB Sweden, Box 14, Hannabadsvägen 5, SE-285 21 Markaryd
Tel: +46-(0)433-73 000 Fax: +46-(0)433-73 190 E-mail: info@nibe.se www.nibe.se
For countries not mention in this list, please contact Nibe Sweden or check www.nibe.eu for more information.
6
Chapter 1 | Important information
NIBE™ F1255PC
2 Delivery and handling
■ Route pipes so they are not fixed to an internal wall
Transport
that backs on to a bedroom or living room.
F1255PC should be transported and stored vertically in
a dry place. When being moved into a building, F1255PC
may be leant back 45 °.
Caution
The product can be tail heavy.
Remove the outer panels in order to protect them when
moving in confined spaces inside buildings.
Installation area
Leave free space of 800 mm in front of the product. Approx. 50 mm free space is required on each side (see
image) in order to remove the side panels. The panels
do not need to be removed during service. All service on
F1255PC can be carried out from the front. Leave space
between the heat pump and the wall behind (and any
routing of supply cables and pipes), to reduce the risk of
transmission of any vibrations.
0
R
(50) *
R
0
* (50)
800
Pulling out the cooling module
15 - 40 mm
* A normal installation needs 300 – 400 mm (any side) for connection equipment, i.e. level vessel, valves and electrical equipment.
To simplify transport and service, the heat pump can be
separated by pulling the cooling module out from the
cabinet.
See page 51 for instructions about the separation.
Assembly
■ Position F1255PC on a solid foundation that tolerates
the weight of the heat pump. Use the product's adjustable feet to obtain a horizontal and stable set-up.
30 - 50 mm
■ Because water comes from F1255PC, the area where
the heating pump is located must be equipped with
floor drainage.
■ Install with its back to an outside wall, ideally in a room
where noise does not matter, in order to eliminate
noise problems. If this is not possible, avoid placing it
against a wall behind a bedroom or other room where
noise may be a problem.
30 - 50 mm
■ Wherever the unit is located, walls to sound sensitive
rooms should be fitted with sound insulation.
NIBE™ F1255PC
Chapter 2 | Delivery and handling
7
Supplied components
Removing the covers
Enclosed in all countries:
Front cover
2
Outside sensor
Room sensor
O-rings
1x
1x
8x
1
W
IL
LE O
K
W
IL
LE O
K
WIL
LEK
2,5(2
2)
2)
LEK
2,5(2
2 x (ø28 x G25)
2 x (ø22 x G20)
LEK
Compression ring couplings
WIL
O
O
IL
W
LEK
O
O
IL
W
LEK
In the DACH countries and Italy, the
following is also en- In other countries the following
closed:
is also enclosed:
5
5
-52
-52
-97 2,5
SV V- 50
-
TU
H
-97 2,5
TU
SV V- 50
H
1. Remove the screws from the lower edge of the front
cover.
2. Lift the cover out at the bottom edge and up.
Side covers
LE
K
LE
K
LE
K
1 x G1
1 x G3/4
Level vessel
3 x (not
1x230V)
1x
LEK
Safety valve
(0.3 MPa) (3
bar)
Particle filter
1 x G1
1 x G3/4
LEK
Current sensor
LEK
Shut off valve
with filter
LEK
LEK
The side covers can be removed to facilitate the installation.
1. Remove the screws from the upper and lower edges.
2. Twist the cover slightly outward.
3. Move the hatch outwards and backwards.
4. Assembly takes place in the reverse order.
1x
Location
The kit of supplied items is placed in packaging on top
of the heat pump.
8
Chapter 2 | Delivery and handling
NIBE™ F1255PC
Removing parts of the
insulation
Parts of the insulation can be removed to facilitate the
installation.
Insulation, top
1. Disconnect the cable from the motor and remove
the motor from the shuttle valve as illustrated.
A
LEK
LE
K
LEK
B
LE
K
2. Grip the handle and pull straight out as illustrated.
LE
K
Insulation, immersion heater
NOTE
Electrical installation and service must be carried
out under the supervision of a qualified electrician. Electrical installation and wiring must be
carried out in accordance with the stipulations
in force.
1. Remove the cover for the junction box according to
the description on page 19.
2. Grip the handle and pull the insulation carefully towards you as illustrated.
NIBE™ F1255PC
Chapter 2 | Delivery and handling
9
3 The heat pump design
General
View from behind
XL1
XL4
XL6
XL3
FR1
XL2
XL7
QM22
BT7
UB3
QN10
AA4
W130
BT2
SF1
BF1
F1255
AA4-XJ4
AA4-XJ3
EB1
PF1
BT6
UB1
UB2
QM34
QM31
QM32
QM33
PF2
View from above
XL5
10
BT7
Chapter 3 | The heat pump design
NIBE™ F1255PC
Pipe connections
XL1
XL2
XL3
XL4
XL5
XL6
XL7
Connection, heating medium flow
Connection, heating medium return
Connection, cold water
Connection, hot water
Connection, HWC
Connection, brine in
Connection, brine out
HVAC components
QM22
QM31
QM32
QM33
QM34
QN10
Venting, coil
Shut-off valve, heating medium flow
Shut off valve, heating medium return
Shut off valve, brine out
Shut-off valve, brine in
Shuttle valve, climate system/water heater
Sensors etc.
BF1
BT1
BT2
BT6
BT7
Flow meter**
Outdoor temperature sensor*
Temperature sensors, heating medium flow
Temperature sensor, hot water charging
Temperature sensor, hot water top
**Only heat pumps with energy meter
* Not illustrated
Electrical components
AA4
Display unit
AA4-XJ3 USB socket
EB1
FR1
SF1
W130
AA4-XJ4 Service outlet (No function)
Immersion heater
Sacrificial anode*
Switch
Network cable for NIBE UplinkTM
* Only heat pump with enamelled vessel.
Miscellaneous
PF1
PF2
UB1
UB2
UB3
Rating plate
Type plate, cooling section
Cable gland, incoming electricity
Cable gland
Cable gland, rear side, sensor
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
NIBE™ F1255PC
Chapter 3 | The heat pump design
11
Distribution boxes
FD1
AA8
F1255
AA3
AA23
AA1
FA1
AA2
AA7
12
Electrical components
* Only heat pump with enamelled vessel.
AA1
AA2
AA3
AA7
AA8
AA23
FA1
FD1
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
Immersion heater card
Base card
Input circuit board
Extra relay circuit board
Sacrificial anode card*
Communication board
Miniature circuit-breaker
Temperature limiter/Emergency mode thermostat
Chapter 3 | The heat pump design
NIBE™ F1255PC
Electrical components
Cooling section
AA100
EB 10
QA40
1X230V, 3X400V, 6 kW
BT12
Joint card
Compressor heater
Inverter
Cooling components
EP6
AA100
BT3
BT10
GP1
BT11
GP2
K
LE
K
LE
QM2
QN18
QM1
EP1
EP2
EP6
GQ10
HS1
QN1
QN18
Evaporator
Condenser
Heat exchanger, cooling
Compressor
Drying filter
Expansion valve
Mixing valve, cooling
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
1X230V, 3X400V, 6 kW
EP2
EP1
BT14
GQ10
QA40
BT17
HS1
CA1
XL20
RA1
BT15
K
LE
K
LE
XL21
BP1
BP2
QN1
EB10
Pipe connections
XL20
XL21
Service connection, high pressure
Service connection, low pressure
HVAC components
GP1
GP2
QM1
QM2
Circulation pump
Brine pump
Drainage, climate system
Draining, brine side
Sensors etc.
BP1
BP2
BT3
BT10
BT11
BT12
BT14
BT15
BT17
High pressure pressostat
Low pressure pressostat
Temperature sensors, heating medium return
Temperature sensor, brine in
Temperature sensor, brine out
Temperature sensor, condenser supply line
Temperature sensor, hot gas
Temperature sensor, fluid pipe
Temperature sensor, suction gas
NIBE™ F1255PC
Chapter 3 | The heat pump design
13
4 Pipe connections
General
Pipe installation must be carried out in accordance with
current norms and directives. F1255PC can operate with
a return temperature of up to 58 °C and an outgoing
temperature from the heat pump of 70 (65 °C with only
the compressor).
F1255PC is not equipped with external shut off valves;
these must be installed to facilitate any future servicing.
Caution
Any high points in the climate system, must be
equipped with air vents.
NOTE
The pipe system needs to be flushed out before
the heat pump is connected so that debris cannot damage component parts.
System diagram
F1255PC consists of a heat pump, water heater, electrical
module, circulation pumps and a control system.
F1255PC is connected to the brine and heating medium
circuits.
In the heat pump evaporator, the brine (water mixed
with anti-freeze, glycol or ethanol) releases its energy to
the refrigerant, which is vaporised in order to be compressed in the compressor. The refrigerant, of which the
temperature has now been raised, is passed to the condenser where it gives off its energy to the heating medium circuit and, if necessary, to the water heater. If there
is a greater need for heating/hot water than the compressor can provide there is an integrated immersion
heater.
The brine can also be circulated via a mixing valve to a
heat exchanger. There the brine cools the heating system's water so that comfort cooling can be maintained
during the hotter periods of the year.
XL1
NOTE
XL6
VBf KBin
The climate system must be adjusted for both
heating and cooling operation.
XL4
XL3
VVKV
XL7
XL2
KBut VBr
KBut
Symbol key
Symbol Meaning
Venting valve
Shut-off valve
Non-return valve
Level vessel
Trim valve
Shunt / shuttle valve
Safety valve
Temperature sensor
Expansion vessel
P
Pressure gauge
Circulation pump
Particle filter
Auxiliary relay
Flow meter (only heat pumps with energy
meter)
Compressor
XL 1
XL 2
XL 3
XL 4
XL 6
XL 7
Connection, heating medium flow
Connection, heating medium return
Connection, cold water
Connection, hot water
Connection, brine in
Connection, brine out
Heat exchanger
14
Chapter 4 | Pipe connections
NIBE™ F1255PC
Dimensions and pipe
connections
Brine side
Collector
70
Caution
Max length per coil for the collector should not exceed
400 m.
In those cases where it is necessary to have several collectors, these should be connected in parallel with the
possibility for adjusting the flow of the relevant coil.
25-50
650*
650*
1775
The length of the collector hose varies depending on the rock/soil conditions, climate zone
and on the climate system (radiators or underfloor heating).
560
For surface soil heat, the hose should be buried at a
depth determined by local conditions and the distance
between the hoses should be at least 1 metre.
440
For several bore holes, the distance between the holes
must be determined according to local conditions.
Ensure the collector hose rises constantly towards the
heat pump to avoid air pockets. If this is not possible,
airvents should be used.
600
525
470
390
210
130
As the temperature of brine system can fall below 0 °C
it must be protected against freezing down to -15 °C. 1
litre of ready mixed brine per meter of collector hose
(applies when using PEM-hose 40x 2.4 PN 6.3) is used as
a guide value when making the volume calculation.
620
25
50
Side connection
It is possible to angle the brine connections, for connection to the side instead of top connection.
XL1
XL6
XL4
XL3
XL7
XL2
To angle out a connection:
1. Disconnect the pipe at the top connection.
2. Angle the pipe in the desired direction.
3. If necessary, cut the pipe to the desired length.
Connecting the brine side
70
■ Insulate all indoor brine pipes against condensation.
■ The level vessel must be installed at the highest point
Pipe dimensions
in the brine system, on the incoming pipe before the
brine pump (Alt. 1).
Connection
If the level vessel cannot be placed at the highest point,
an expansion vessel must be used (Alt. 2).
(XL6)/(XL7) Brine in/out ext Ø
(mm)
28
(XL1)/(XL2) Heating medium flow/return
ext Ø
(mm)
22
NOTE
(XL3)/(XL4) Cold/hot water Ø
(mm)
22
Note that condensation may drip from the level
vessel. Position the vessel so that this does not
harm other equipment.
■ Details of the antifreeze used must be shown on the
level vessel.
■ Install the enclosed safety valve under the level vessel
as illustrated. The entire length of the overflow water
pipe from the safety valve must be inclined to prevent
water pockets and must also be frost-free.
* Can be angled for side connection.
NIBE™ F1255PC
Chapter 4 | Pipe connections
15
■ Install shut off valves as close to the heat pump as
■ The mixing valve must be installed if the setting is
possible.
changed so that the temperature can exceed 60 °C.
P
■ Fit the supplied particle filter on the incoming pipe.
■ The setting for hot water is made in menu 5.1.1.
In the case of connection to an open groundwater system, an intermediate frost-protected circuit must be
provided, because of the risk of dirt and freezing in the
evaporator. This requires an extra heat exchanger.
■ The safety valve must have a maximum opening pres-
Alt. 1
Alt. 2
sure of 1.0 MPa (10.0 bar) and be installed on the incoming domestic water line as illustrated. The entire
length of the overflow water pipe from the safety valve
must be inclined to prevent water pockets and must
also be frost-free.
Docking alternatives
P
F1255PC can be connected in several different ways,
some of which are shown below.
Further option information is available at www.nibe.eu
and in the respective assembly instructions for the accessories used. See page 57 for a list of the accessories
that can be used with F1255PC.
XL6
Collector
XL7
Buffer vessel
If the climate system volume is too small for the heat
pump output, the radiator system can be supplemented
with a buffer vessel, for example NIBE UKV.
Heating medium side
Connecting the climate system
UKV
A climate system is a system that regulates indoor comfort with the help of the control system in F1255PC and
for example radiators, underfloor heating/cooling, fan
convectors etc.
■ Install all required safety devices, shut-off valves (as
close to the heat pump as possible), and supplied
particle filter.
P
■ The safety valve must have a maximum opening pres-
sure of 0.25 MPa (2.5 bar) and be installed on the
heating medium return as illustrated. The entire length
of the overflow water pipe from the safety valve must
be inclined, to prevent water pockets and must also
be frost-free.
■ When connecting to a system with thermostats on all
radiators, a relief valve must be fitted, or some of the
thermostats must be removed to ensure sufficient flow.
P
XL1
XL4
XL3
XL2
Water heater
P
Connecting the hot water heater
■ The hot water heater in the heat pump must be sup-
plied with necessary set of valves.
16
Chapter 4 | Pipe connections
NIBE™ F1255PC
Extra electric hot water heater
Ventilation recovery
The heat pump should be supplemented with an electric
water heater, for example NIBE COMPACT, if a whirlpool
or other significant consumer of hot water is installed.
■ The valve connection on COMPACT can be separated.
The mixing valve remains on COMPACT and the remaining valve connector can be used for incoming cold
water in F1255PC.
The installation can be supplemented with the exhaust
air module FLM to provide ventilation recovery.
■ Pipes and other cold surfaces must be insulated with
diffusion-proof material to prevent condensation.
■ The brine system must be supplied with a pressure
expansion vessel (CM3). If there is a level vessel (CM2)
this should be replaced.
CW
KV
Extract
air
Avluft
Ø 160
Exhaust
air
Frånluft
Ø 160
FLM
P
COMPACT
HW
VV
Ground water system
An intermediate heat exchanger is used to protect the
heat pump's exchanger from dirt. The water is released
into a buried filtration unit or a drilled well. See page 26
for more information about connecting a ground water
pump.
If this docking alternative is used, "min. brine out" in
menu 5.1.7 "br pmp al set." must be changed to a suitable value to prevent freezing in the heat exchanger.
Under floor heating systems
The external circulation pump is dimensioned for the
under floor heating system’s demand.
To ensure a heating supply during hot water production,
the heating system can be supplemented with a NIBE
UKV vessel, e.g. when there is a water coil in the FTX
ventilation.
UKV
UKV
P
NIBE™ F1255PC
Chapter 4 | Pipe connections
17
Two or more climate systems
When more than one climate system, with a lower temperature, is to be heated up, the following connection
can be used. The shunt valve lowers the temperature to,
for example, the under floor heating system.
The ECS 40/ECS 41 accessory is required for this connection.
Pool
Charging of the pool is controlled by the pool sensor. In
the case of low pool temperatures, the shuttle valve reverses direction and opens towards the pool exchanger.
The POOL 40 accessory is required for this connection.
Pool
18
Chapter 4 | Pipe connections
NIBE™ F1255PC
5 Electrical connections
General
All electrical equipment, except the outdoor sensors,
room sensors and the current sensors are ready connected at the factory.
■ Disconnect the heat pump before insulation testing
the house wiring.
UB3
FD1
FD1-SF2
F1255
■ If the building is equipped with an earth-fault breaker,
F1255PC should be equipped with a separate one.
■ If a miniature circuit breaker is used this should have
at least motor characteristic “C”. See page 60 for fuse
size.
FA1
UB1
■ Electrical wiring diagrams for the heat pump, see sep-
arate installation handbook for electrical wiring diagrams.
■ Communication and sensor cables to external connec-
tions must not be laid close to high current cables.
UB2
■ The minimum area of communication and sensor
cables to external connections must be 0.5 mm² up to
50 m, for example EKKX or LiYY or equivalent.
■ When cable routing in F1255PC, cable grommets (e.g.
UB1-UB3, marked in image) must be used. In UB1-UB3
the cables are inserted through the heat pump from
the back to the front.
NOTE
The switch (SF1) must not be moved to " " or
" " until the boiler has been filled with water.
Component parts of the product can be damaged.
NOTE
Electrical installation and service must be carried
out under the supervision of a qualified electrician. Cut the current with the circuit breaker
before carrying out any servicing. Electrical installation and wiring must be carried out in accordance with the stipulations in force.
NOTE
Miniature circuit-breaker
The heat pump operating circuit and a large proportion
of its internal components are internally fused by a
miniature circuit breaker (FA1).
Temperature limiter
The temperature limiter (FD1) cuts the power to the
electric additional heat if the temperature exceeds 89°C
and is reset manually.
Resetting
The temperature limiter (FD1) is accessible behind the
front cover. Reset the temperature limiter by pressing
the button (FD1-SF2) using a small screwdriver.
Accessibility, electrical connection
The plastic cap of the electrical boxes is opened using a
screwdriver.
NOTE
The cover for the input card is opened without
a tool.
Check the connections, main voltage and phase
voltage before the machine is started, to prevent
damage to the heat pump electronics.
NIBE™ F1255PC
Chapter 5 | Electrical connections
19
Removing the cover, input circuit board
1
1
LE
K
A
2
B
21
1. Push the catch down.
2. Angle out the cover and remove it.
Removing the cover, immersion heater circuit board
32
LE
K
A
1
B
1. Disconnect the switches using a screwdriver.
2. Insert the screwdriver (A) and pry the catch carefully
downwards (B).
3. Angle out the cover and remove it.
Cable lock
Use a suitable tool to release/lock cables in the heat
pump terminal blocks.
2
3
3
3
1
2
1
1
2
2
1. Insert the screwdriver (A) and pry the catch carefully
downwards (B).
2. Angle out the cover and remove it.
3
1
2
1
2
3
Removing the cover, base board
2
2
4
1
20
Chapter 5 | Electrical connections
2
To remove the cover for the base board, the
cover for the input circuit board must first be
removed.
1
K
LE
3
1
2
K
LE
4
1
3
Caution
3
NIBE™ F1255PC
Connecting external operating voltage for
the control system
Connections
NOTE
To prevent interference, unscreened communication and/or sensor to external connections
cables must not be laid closer than 20 cm to
high voltage cable when cable routing.
NOTE
Only applies to power connection of 3x400V.
NOTE
Mark up any junction boxes with warnings for
external voltage.
Power connection
F1255PC must be installed with a disconnection option
on the supply cable. Minimum cable area must be sized
according to the fuse rating used. Enclosed cable for incoming supply electricity is connected to terminal block
X1 on the immersion heater board (AA1). All installations
must be carried out in accordance with current norms
and directives.
If you wish to connect external operating voltage for the
control system to F1255PC on the immersion heater circuit board (AA1) the edge connector at AA1:X2 must be
moved toAA1:X9 (as illustrated).
Operating voltage (1x230V ~ 50Hz) is connected to
AA1:X11 (as illustrated).
NOTE
F1255PC is not reconnectable between 1-phase
and 3-phase.
1 2 3 4 5 6
ON
Connection 3x400V
AA1-X1
N
0
PE L1
1
L2 L3
AA1-X8
AA1-X2
AA1-X1
N
PE1
0
PE L1
1
L2 L3
AA1-X9
Connection 1x230V
AA1
AA1-X11
AA1-X1
L PE N
1x230V+N+PE
1x230V+N+PE
operating voltage
N
PE
0
L1
1
Outside sensor
Install the outdoor temperature sensor (BT1) in the shade
on a wall facing north or north-west, so it is unaffected
by the morning sun for example.
AA1-X1
PE1
If separate supply to the compressor and immersion
heater is required, see section "Switch for external
blocking of addition and/or compressor" on page 25.
Connect the sensor to terminal block X6:1 and X6:2 on
the input board (AA3). Use a twin core cable of at least
0.5 mm² cable area.
If a conduit is used it must be sealed to prevent condensation in the sensor capsule.
Tariff control
If the voltage to the immersion heater and/or the compressor disappears during a certain period, there must
also be blocking via the AUX-input, see "Connection
options - Possible selection for AUX inputs" page. 25
NIBE™ F1255PC
Chapter 5 | Electrical connections
21
External
AA3-X6
BT1
The heat pump operates without the sensor, but if one
wishes to read off the accommodation's indoor temperature in F1255PC's display, the sensor must be installed.
Connect the room sensor to X6:3 and X6:4 on the input
board (AA3).
F1255PC
1
2
3
4
5
6
7
8
AA3-X6
9
If the sensor is to be used to change the room temperature in °C and/or to change/stabilise the room temperature, the sensor must be activated in menu 1.9.4.
If the room sensor is used in a room with underfloor
heating, it should only have an indicatory function, not
control of the room temperature.
Temperature sensor, external flow line
RG 05
External
F1255PC
F1245
If temperature sensor, external flow line (BT25) needs
to be used, connect it to terminal block X6:5 and X6:6
on the input card (AA3). Use a 2 core cable of at least
0.5 mm² cable area.
AA3-X6
F1245F1255PC
1
2
3
4
5
6
7
8
9
AA3-X6
BT25
AA3-X6
Room sensor
F1255PC is supplied with a room sensor enclosed (BT50).
The room sensor has up to three functions:
1. Show current room temperature in F1255PC's display.
2. Option of changing the room temperature in °C.
3. Makes it possible to change/stabilise the room
temperature.
Install the sensor in a neutral position where the set
temperature is required. A suitable location is on a free
inner wall in a hall approx. 1.5 m above the floor. It is
important that the sensor is not obstructed from measuring the correct room temperature by being located,
for example, in a recess, between shelves, behind a curtain, above or close to a heat source, in a draft from an
external door or in direct sunlight. Closed radiator thermostats can also cause problems.
1
2
3
4
5
6
7
8
9
BT50
AA3-X6
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 temperature.
Settings
FD1-BT30
AA1-SF2
AA1-X3
AA1-X7
Electrical addition - maximum output
F1255PC
Max
Number of connection steps
1x230V
4.5 kW
9
3x400V
6.5 kW
13
Setting max electrical output
Setting maximum output in the electric additional heat
is done in menu 5.1.12.
22
Chapter 5 | Electrical connections
NIBE™ F1255PC
The table displays the total phase current for the immersion heater at start up. If an immersion heater has already
been started and is not used for its full capacity the values in the table can be changed because the control
initially uses this immersion heater.
3x400V, F1255PC
Max electrical addition
(kW)
Max phase
current
L1(A)
Max phase
current
L2(A)
Max phase
current
L3(A)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
–
2.2
–
2.2
–
2.2
–
2.2
7.5
9.7
7.5
9.7
7.5
9.7
–
–
4.3
4.3
–
–
4.3
4.3
4.3
4.3
–
–
4.3
4.3
–
–
–
–
8.7
8.7
8.7
8.7
7.5
7.5
16.2
16.2
16.2
16.2
NOTE
The switch (SF1) must not be moved to " " or
" " until F1255PC has been filled with water.
Components in the product can be damaged.
Power in emergency mode
3x400V for F1255PC
kW
1
2
3
4
5
6
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
on
off
on
off
on
off
on
off
on
off
on
off
on
off
off
off
off
off
off
off
on
on
on
on
on
on
off
on
on
off
off
on
on
on
on
off
off
on
on
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
on
on
on
on
off
off
on
on
on
on
off
off
off
off
off
off
off
on
on
on
on
on
on
1x230V for F1255PC
1x230V, F1255PC
Max electrical addition
(kW)
Max phase current L1(A)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
–
2.2
4.3
6.5
8.6
10.8
13.0
15.2
17.3
19.5
kW
1
2
3
4
5
6
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
on
off
on
off
on
off
on
off
on
off
off
off
off
off
off
off
off
off
off
on
on
off
off
on
on
on
on
off
off
off
off
off
off
off
off
off
off
off
off
on
on
on
on
on
on
off
off
off
on
off
off
off
on
on
1x230V and 3x400V for F1255PC
1 2 3 4 5 6
If the current sensors are connected, the heat pump
monitors the phase currents and allocates the electrical
steps automatically to the least loaded phase.
When the heat pump is set to emergency mode (SF1 is
set to ) only the most necessary functions are activated.
■ The compressor is off and heating is managed by the
immersion heater.
ON
Emergency mode
■ Hot water is not produced.
■ The load monitor is not connected.
AA1-SF2
The image shows the dip-switch (AA1-SF2) in the factory
setting, that is 3.5 kW for F1255PC.
NIBE™ F1255PC
Chapter 5 | Electrical connections
23
Emergency mode thermostat
Incoming
electricity
Inkommande
el
The supply temperature in emergency mode is set using
a thermostat (FD1-BT30). It can be set to 35 (pre-set, for
example under floor heating)
or 45 °C (for example radiFör markvärme!
ators).
PEN
L1 L2 L3
K
LE
Elcentral distribution
Electrical
unit
Värmepump
Heat
pump
-T1
-T2
-T3
Optional connections
1 2 3 4
För frånluftsvärme!
Load monitor
When many electrical appliances are connected in the
property at the same time as the electric additional heat
is operating, there is a risk of the property's main fuse
tripping. The heat pump has integrated load monitors
that control the electrical steps for the electrical addition
by redistributing the power between the different phases
or disengaging the electrical addition in event of overload in a phase. If the overload remains despite the
electrical addition being disengaged, the compressor
winds down. Reconnection occurs when other current
consumption is reduced.
AA3-X4
AA3-X4
K
LE
NIBE NIBE Uplink
Connect the network connected cable (straight, Cat.5e
UTP) with RJ45-contact (male) to RJ45 contact (female)
on the rear of the heat pump.
Connecting current sensors
A current sensor should be installed on each incoming
phase conductor in to the distribution box to measure
the current. The distribution box is an appropriate installation point.
Connect the current sensors to a multi-core cable in an
enclosure next to the electrical distribution unit. The
multi-core cable between the enclosure and the heat
pump must have a cable area of at least 0.5 mm².
Connect the cable to the input board (AA3) on terminal
X4:1-4 block - where X4:1 is the common terminal block
for the three current sensors.
The size of the property's main fuse is set in menu 5.1.12.
External connection options
F1255PC has software controlled inputs and outputs on
the input card (AA3), for connecting the external switch
function or sensor. This means that when an external
switch function or sensor is connected to one of six special connections, the correct function must be selected
to the correct connection in the software in F1255PC.
Caution
If an external switch function or sensor is connected to F1255PC, the function to use input or
output must be selected in menu 5.4, see page
47.
24
Chapter 5 | Electrical connections
NIBE™ F1255PC
Selectable inputs on the input board for these functions
are:
If external blocking of additional heat and/or compressor
is wanted, this can be connected to terminal block X6
on the input board (AA3), which is positioned behind
the front cover.
AUX1
X6:9-10
AUX2
X6:11-12
AUX3
X6:13-14
The additional heat and/or the compressor are disconnected by connecting a potential-free switch function
to the input selected in menu 5.4, see page 47.
AUX4
X6:15-16
External blocking of addition and compressor can be
combined.
AUX5
X6:17-18
A closed contact results in the electrical output being
disconnected.
Selectable outputs are AA3:X7.
Contact for external tariff blocking
In those cases where external tariff blocking is used, it
can be connected to terminal block X6 on the input
board (AA3), which is positioned behind the front cover.
soft in/outputs5.4
block heating
Tariff blocking means that the additional heat, the
compressor, the heating and hot water are blocked by
connecting a potential-free switch function to the input
selected in menu 5.4, see page 47.
activate temp lux
not used
not used
Closed switch means that tariff blocking is activated.
not used
NOTE
alarm output
External
Externt
When tariff blocking is activated, the min. supply
line does not apply.
Switch for "SG ready"
F1255PC
F1245
9
10
11
12
13
14
15
16
B
A
AA3-X6
AA3-X6
The example above uses the inputs AUX1 (X6:9-10) andAUX2
(X6:11-12) on the input circuit board (AA3).
Caution
Some of the following functions can also be activated and scheduled via menu settings.
Possible selection for AUX inputs
Temperature sensor, cooling/heating
An extra temperature sensor (BT74) can be connected
to F1255PC in order to determine when it is time to
switch between heating and cooling operation.
The temperature sensor is connected to the selected input (menu 5.4) on terminal block X6 on the input board
(AA3) which is located behind the front cover and is positioned in a suitable place in the climate system.
Use a 2 core cable of at least 0.5 mm² cable area.
Switch for external blocking of addition and/or
compressor
Blocking for addition heat and compressor is connected
on two different AUX inputs.
NIBE™ F1255PC
NOTE
This function can only be used in mains networks that support the "SG Ready"-standard .
"SG Ready" requires two AUX inputs.
In cases where this function is required, it must be connected to terminal block X6 on the input card (AA3).
"SG Ready" is a smart form of tariff control where your
electricity supplier can affect the indoor, hot water
and/or pool temperatures (if applicable) or simply block
the additional heat and/or compressor in the heat pump
at certain times of the day (can be selected in menu 4.1.5
after the function is activated). Activate the function by
connecting potential-free switch functions to two inputs
selected in menu 5.4 (SG Ready A and SG Ready B), see
page 47.
Closed or open switch means one of the following:
■ Blocking (A: Closed, B: Open)
"SG Ready" is active. The compressor in the heat pump
and additional heat is blocked like the day's tariff
blocking.
■ Normal mode (A: Open, B: Open)
"SG Ready" is not active. No effect on the system.
■ Low price mode (A: Open, B: Closed)
"SG Ready" is active. The system focuses on costs savings and can for example exploit a low tariff from the
electricity supplier or over-capacity from any own
power source (effect on the system can be adjusted
in the menu 4.1.5).
Chapter 5 | Electrical connections
25
■ Overcapacity mode (A: Closed, B: Closed)
"SG Ready" is active. The system is permitted to run at
full capacity at over capacity (very low price) with the
electricity supplier (effect on the system is settable in
menu 4.1.5).
Contact for activation of “temporary lux"
(A = SG Ready A and B = SG Ready B )
An external switch function can be connected to
F1255PC for activation of the hot water function "temporary lux". The switch must be potential-free and connected to the selected input (menu 5.4, see page 47) on
terminal block X6 on the input board (AA3).
Switch for +Adjust
"temporary lux" is activated for the time that the contact
is connected.
Using +Adjust, the installation communicates with the
underfloor heating's control centre* and adjusts the heat
curve and calculated supply temperature according to
the underfloor heating system's reconnection.
Activate the climate system you want +Adjust to affect
by highlighting the function and pressing the OK button.
*Support for +Adjust required
NOTE
+Adjust must first be selected in menu 5.4 ”soft
inputs/outputs”.
NOTE
Circuit board AA3 in the installation must have
at least "Input version・34 and the software
version must have "display version 5539 or later
for +Adjust to work. The version can be checked
in menu 3.1 under ”input version” respectively
”display version”. New software can be downloaded for free from www.nibeuplink.com.
NOTE
In systems with both under floor heating and
radiators, NIBE ECS 40/41 should be used for
optimum operation.
Contact for activation of “external adjustment"
An external contact function can be connected to
F1255PC to change the supply temperature and the
room temperature.
When the switch is closed the temperature changes in
°C (if the room sensor is connected and activated). If a
room sensor is not connected or activated, the desired
change of "temperature" (heating curve offset) with the
number of steps selected is set. The value is adjustable
between -10 and +10.
■ climate system 1
The switch must be potential-free and connected to
the selected input (menu 5.4, see page 47) on terminal
block X6 on the input board (AA3).
The value for the change is set in menu 1.9.2, "external
adjustment".
■ climate system 2 to 8
External adjustment for climate systems 2 to 8 requires
accessories (ECS 40 or ECS 41).
See the accessory’s installer handbook for installation
instructions.
Contact for activation of fan speed
Caution
Switch for external blocking of heating
In those cases where external blocking of heat is used,
it can be connected to terminal block X6 on the input
board (AA3), which is positioned behind the front cover.
Heating operation is disconnected by connecting a potential-free switch function to the input selected in menu
5.4, see page 47.
47
A closed switch results in blocked heating operation.
An external contact function can be connected to
F1255PC for activation of one of the four fan speeds.
The switch must be potential free and connected to the
selected input (menu 5.4, see page 47) on terminal block
X6 on the input circuit board (AA3). When the switch
closes, the selected fan speed is activated. Normal speed
is resumed when the contact is opened again.
NOTE
NV 10, pressure/level/flow monitor brine
When heat blocking is activated, the min. supply
line does not apply.
If the level sensor (accessory NV10) is desired for the
brine installation it can be connected on the selected
input (menu 5.4, see page 47) on terminal block X6 on
the input circuit board (AA3).
Switch for external forced control of brine pump
In those cases external forced control of brine pump is
used, this can be connected to terminal block X6 on the
input board (AA3), which is positioned behind the front
cover.
The brine pump can be force controlled by connecting
a potential free switch function to the input selected in
menu 5.4, see page 47.
A closed switch means that the brine pump is active.
26
The external contact function functions only if
the accessory FLM is installed and activated.
Chapter 5 | Electrical connections
Pressure and flow sensors can also be connected to the
input.
The input must be closed during normal operation.
Possible selection for AUX output (potential
free variable relay)
It is possible to have an external connection through the
relay function via a potential free variable relay (max 2
A) on the input circuit board (AA3), terminal block X7.
NIBE™ F1255PC
Optional functions for external connection:
■ Indication of buzzer alarm.
■ Controlling ground water pump.
External circulation pump, ground water pump or hot
water circulation pump connected to the buzzer alarm
relay as illustrated below.
NOTE
■ Cooling mode indication.
■ Control of circulation pump for hot water circulation.
Mark up any junction boxes with warnings for
external voltage.
■ External circulation pump (for heating medium).
■ External, reversing valve for hot water.
If any of the above is installed to terminal block X7 it
must be selected in menu 5.4, see page 47.
1 2 3
The common alarm is preselected at the factory.
AA3-X7
NOTE
C NO NC
F1X45
F1255PC
Externt
External
An accessory card is required if several functions
are connected to terminal block X7 at the same
time that the buzzer alarm is activated (see page
57).
L
N
PE
L
N PE
AA3-X7
Circulation pump
1 2 3
C NO NC
Caution
AA3-X7
AA3-X7
The relay outputs can have a max load of 2 A
(230V ~).
The picture shows the relay in the alarm position.
When switch (SF1) is in the " " or “
is in the alarm position.
NIBE™ F1255PC
” position the relay
Chapter 5 | Electrical connections
27
Accessories with circuit board AA9
Connecting accessories
Accessories that contain circuit board AA9 are connected
to the indoor module terminal block X4:9-12 on the input card AA3. Use cable type LiYY, EKKX or similar.
Instructions for connecting accessories are in the installation instructions provided for the respective accessory.
See information at www.nibe.eu for the list of the accessories that can be used with F1255PC.
Because there can be different connections for accessories with circuit boards AA9, you should always read the
instructions in the manual for the accessory that you are
going to install.
Accessories with circuit board AA5
Accessories that contain circuit board AA5 are connected
to the heat pump terminal block AA3-X4: 13-15. Use
cable type LiYY, EKKX or similar.
AA3-X4
AA3-X4
If several accessories are to be connected, connect the
first accessory card directly to the heat pump terminal
block. Other accessory boards are connected to the first
in series.
7 8 9 10 11 12
F1255PC
Accessories
Because there can be different connections for accessories with circuit boards AA5, you should always read the
instructions in the manual for the accessory that you are
going to install.
AA9-X1
12V A
B GND
EB100
AA3-X4
12V
A
B
GND
AA3-X4
A
15
B
10
11
12
14
GND
7
8
9
13
F1255PC
Accessory card 1
A
9
8
7
6
5
4
3
2
1
9
8
4
5
-X2
6
7
7
6
8
GND
-X8
3
4
-X9
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
3
B
2
2
A
1
1
GND
AA5-X4
ON
B
5
4
-X4
AA5-X4
3
1
2
2
1
3
4
5
-X10
5
6
-X1 N
7
6
8
L
PE
PE
7
8
Accessory card 2
A
-X9
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
8
7
6
5
4
3
2
1
9
5
-X8
9
8
4
6
-X2
7
7
8
GND
3
B
2
2
A
1
GND
1
ON
B
AA5-X4
3
4
6
5
AA5-X4
-X4
1
2
3
4
5
3
2
5
6
7
6
4
1
-X10
8
-X1 N
L
PE
PE
7
8
28
Chapter 5 | Electrical connections
NIBE™ F1255PC
6 Commissioning and adjusting
Preparations
1. Ensure that F1255PC has not been damaged during
transport.
2. Check that the switch (SF1) is in position " ".
3. Check for water in the hot water heater and climate
system.
2. Fill the hot water heater through the cold water
connection (XL3).
3. When the water that comes out of the hot water
tap is no longer mixed with air, the water heater is
full and the tap can be closed.
Filling and venting the brine system
NOTE
Caution
Check the miniature circuit-breaker and the
motor protection breakers. They may have
tripped during transportation.
NOTE
Do not start the heat pump, if there is a risk that
the water in the system has frozen.
Filling and venting
Caution
Insufficient venting can damage internal components in F1255PC.
Filling and venting the climate system
Filling
1. Open the filling valve (external, not included with
the product). Fill the coil in the hot water heater and
the rest of the climate system with water.
2. Open the venting valve (QM22).
3. When the water that exits the venting valve (QM22)
is not mixed with air, close the valve. After a while
the pressure starts to rise.
4. Close the filling valve when the correct pressure is
obtained.
Venting
Insufficient venting can cause damage to the
brine pump.
When filling the brine system, mix the water with antifreeze in an open container. The mixture should be
protected against freezing down to about -15 °C. The
brine is filled by connecting a filling pump.
1. Check the brine system for leakage.
2. Connect the filling pump and return line on the brine
system's filler connector as illustrated.
3. If alternative 1 (level vessel) is used, close the valve
under the level vessel (CM2).
4. Close the three way valve in the filler connector (accessory).
5. Open the valves on the filler connector.
6. Start the filling pump.
7. Fill until liquid enters the return pipe.
8. Close the valves on the filler connector.
9. Open the three way valve in the filler connector.
10. If alternative 1 (level vessel) is used, open the valve
under the level vessel (CM2).
XL6
KBin
VBf
Alt. 2
VVKV
XL7
KBut
VBr
Alt. 1
P
NOTE
Insufficient venting can cause damage to internal components.
1. Bleed the heat pump via a vent valve (QM22) and
the rest of the climate system via their relevant vent
valves.
2. Keep topping up and venting until all air has been
removed and the pressure is correct.
NOTE
Stängs
Closes
BK
/ JK
Collector
The pipe from the coil in 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 vent valve
(QM22) is opened.
Filling the hot water heater
1. Open a hot water tap in the house.
NIBE™ F1255PC
Chapter 6 | Commissioning and adjusting
29
XL1
XL6
XL4
XL3
XL7
Caution
XL2
As long as the start guide is active, no function
in the installation will start automatically.
The guide will appear at each installation restart
until it is deselected on the last page.
XL 1
XL 2
XL 3
XL 4
XL 6
XL 7
Connection, heating medium flow
Connection, heating medium return
Connection, cold water
Connection, hot water
Connection, brine in
Connection, brine out
70
Operation in the start guide
A. Page
B. Name and menu number
language 4.6
Symbol key
Symbol Meaning
Safety valve
Level vessel
Expansion vessel
P
Pressure gauge
Particle filter
Start guide
NOTE
There must be water in the climate system before the switch is set to " ".
1. Set the heat pump's switch (SF1) to " ".
2. Follow the instructions in the start guide in the heat
pump display. If the start guide does not start when
you start the heat pump, start it manually in menu
5.7.
TIP
See page 34 for a more in-depth introduction
to the heat pump’s control system (operation,
menus etc.).
If the building is cooled when F1255PC starts, the compressor may not be able to meet the entire demand
without having to use additional heating.
Commissioning
The first time the heat pump is started a start guide is
started. The start guide instructions state what needs to
carried out at the first start together with a run through
of the heat pump’s basic settings.
If the start guide is left on this page it closes
automatically in
60 min
C. Option / setting
A. Page
Here you can see how far you have come in the start
guide.
Scroll between the pages of the start guide as follows:
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 pages in
the start guide.
B. Name and menu number
Read what menu in the control system this page of the
start guide is based on. The digits in brackets refer to the
menu number in the control system.
If you want to read more about affected menus either
consult the help menu or read the user manual.
650*
Shut-off valve
C. Option / setting
Make settings for the system here.
D. 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.
560
440
The start guide ensures that start-up is carried out correctly and cannot be bypassed.The start guide can be
started later in menu 5.7.
30
Chapter 6 | Commissioning and adjusting
NIBE™ F1255PC
F1255PC
Pumpkapacitet, köldbärarsida för F1155-1255-PC, manuell drift.
Post adjustment and venting
Available
pressure,
kPa
Tillgängligt tryck,
kPa
Pump adjustment, automatic operation
Electrical input,
Eleffekt,W
W
80
100
90
70
Brine side
80
P100%
60
70
The brine pump must run at the correct speed for the
correct flow in the brine system. F1255PC has a brine
pump that can be automatically controlled in standard
mode. Certain functions and accessories may require
that they are run manually and the correct speed must
then be set, see section Pump adjustment, manual operation.
P80%
50
40
The heating medium pump must run at the correct speed
for the correct flow in the heating medium system,
F1255PC has a heating medium pump that can be
automatically controlled in standard mode. Certain
functions and accessories may require that they are run
manually and the correct speed must then be set, see
section Pump adjustment, manual operation.
50
40
30
30
P40%
20
100% 20
80%
60%
10
10
40%
0
0,00
0,10
0,20
0,30
0,40
The automatic control occurs when the compressor is
running and it sets the speed of the brine pump to obtain
Tillgängligt tryck
värmedrift,
kPa
Available
pressure
heating
operation, kPa
the optimal temperature difference between the supply
Eleffekt, W input, W
PP Electrical
and return lines. For passive cooling operation, for exTillgängligt tryck kyldrift, kPa
Available pressure cooling operation, kPa
ample, the brine pump must run at a set speed, which Tillgängligt tryck,
kPa / Eleffekt, W
is set in menu 5.1.9
100
Heating medium side
60
P60%
90
80
70
60
50
40
30
20
10
0
0,50
0
0,60
Flöde,l/s
l/s
Flow
P100%
Heating medium side
F1255PC has a heating medium that is automatically
controlled. If a manual speed is required, open menu
P80%
"auto" and set the
5.1.11 (see page 43) and deactivate
pump's speed according to the diagram below.
F11
100%
P60%
80%
P40% 60%
40%
When passive
cooling is used, the heating
Flöde medi-
Caution
um0,15
pump
speed
be 0,45
set in
menu
l/s 5.1.11.
0 0,05 0,10
0,20 0,25
0,30 must
0,35 0,40
0,50
This automatic control occurs when the compressor is
running and sets the speed of the heating medium
Available
Tillgängligtpressure,
tryck kPa
pump, for the present operating mode, to obtain the
optimal temperature difference between the supply and
Eleffekt output, W
P Electrical
return lines. During heating operation, the set DOT (dimensioned outdoor temperature) and temperature dif- Tillgängligt tryck, kPa / Eleffekt, W
Pumpkapacitet, värmebärarsida för F1155-1255 -6 kW, manuell drift.
ferential in menu 5.1.14 are used. If necessary, the max- 100 F1255PC
P100%
imum speed of the circulation pump can be limited in 90 Available
Tillgängligt tryck
EleffektW
pressure, kPa
Electrical input,
W
80 kPa
menu 5.1.11.
90
Pump adjustment, manual operation
Brine side
F1255PC has a brine pump that is automatically controlled. If a manual speed is required, open menu 5.1.9
(see page 42) and deactivate "auto" and set the pump's
speed according to the diagram below.
70
60
50
40
30
20
10
0
80
70
P80%
P100%
70
60
60
50
P40%
40%
40
80%
P60%
60%
P80%
100%
50
100%
40
30
0 0,05 0,10 0,15 0,20 0,25 0,30 0,35
0,45 0,50
P60% 0,4080%
Flöde
l/s
30
20
20
P40%
10
Caution
0
0,00
When passive cooling is used, the brine pump
speed must be set in menu 5.1.9.
0,05
10
60%
Tillgängligt tryck
P0,10 Eleffekt
0,15
0,20
0,25
40%
0,30
F11
0,35
0,40
0,45
0
0,50 l/s
Flöde
Flow l/s
Tillgängligt tryck, kPa
Tillgängligt tryck,
kPa / Eleffekt, W
P Eleffekt, W
100
90
80
70
60
50
40
30
20
10
0
Readjusting, venting, heat medium side
P100%
Pumpkapacitet, värmebärarsida för F1155-1255 -16 kW, manuell drift.
Air is initially released from the hot water and venting
Tillgängligt tryck
Eleffekt
may
be necessary. If gurgling sounds can be heard
from
kPa
W
90
100
the
heat pump or climate system,
the
entire
system
will
P80%
require
additional venting.
90
P100%
80
100%
70
60
P40%
40%
50
80
80%
P60%
60%
P60%
40
0 0,05 0,10 0,15 0,20 0,25 0,30 0,35 0,40 0,45 0,50
30
P
0
0,00
0,05
60
Flöde
l/s100%
0,10
0,15
P Eleffekt, W
0,25
40
20
10
0,30
0,35
0,40
0,45
0
0,50 l/s
Chapter 6 | Commissioning and adjusting
Flöde
Tillgängligt tryck, kPa
Tillgängligt tryck, kPa
0,20
50
30
80%
Tillgängligt tryck
40%
Eleffekt
10
NIBE™ F1255PC
60%
P40%
20
F11
70
P80%
31
Readjusting, venting, collector side
cooling curve 1.9.1.2
system
Level vessel
flow temperature °C
2/3
outdoor temp. °C
2/3
1/3
LEK
LEK
heating curve
LEK
Check the fluid level in the level vessel
(CM2). If the fluid level has dropped, top up
the system.
1. Close the valve under the vessel.
2. Disconnect the connection on top of the
vessel.
3. Fill with brine until approx 2/3 of the
vessel is full.
4. Reconnect the connector at the top of
the vessel.
5. Open the valve under the vessel.
Setting range: 0 – 15
Default value: 9
If the pressure in the system needs to be raised, it is raised
by closing the valve on the incoming main line when the
brine pump (GP2) is running and the level vessel (CM2)
is open, so that liquid is drawn down from the vessel.
cooling curve
Gamla bilder, med säkerhetsventil p
Setting range: 0 – 9
Default value: 0
Expansion vessel
If a pressure expansion vessel (CM3) is used
instead of a level vessel, the pressure level
is checked. If the pressure drops, the system
should be replenished.
LEK
Post adjusting the room
temperature
If the required room temperature is not obtained, readjustment may be necessary.
Cold weather conditions
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, regardless of the outdoor temperature, and thereby energy
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 temperature 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.
■ When the room temperature is too low, increase
■ When the room temperature is too high, reduce
"heating curve" in menu 1.9.1.1 by one increment.
Warm weather conditions
■ When the room temperature is too low, increase
"temperature" (offset heating curve) in menu 1.1.1 by
one increment.
■ When the room temperature is too high, reduce
"temperature" (offset heating curve) in menu 1.1.1 by
one increment.
Setting the cooling/heating
curve
heating curve 1.9.1.1
system
Curve coefficient
The slopes of the heating /cooling curves indicate how
many degrees the supply temperature is to be increased/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.
Supply temperature
FRAMLEDNINGSTEMPERATUR
"heating curve" in menu 1.9.1.1 by one increment.
°C
70
Steeper
curve slope
Brantare
kurvlutning
60
50
40
30
10
0
- 10
- 20
- 30
- 40°C
UTETEMPERATUR
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.
flow temperature °C
The curve is set when the heating installation is installed,
but may need adjusting later. Normally, the curve will
not need further adjustment.
outdoor temp. °C
32
Chapter 6 | Commissioning and adjusting
NIBE™ F1255PC
Caution
When making fine adjustments of the indoor
temperature, the curve must be offset up or
down instead, this is done in menu 1.1 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
Curve offset
An offset of the curve means that the supply temperature
changes by the same amount 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
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 increment.
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 increment.
If it is warm outdoors and the room temperature
is too high, lower the curve offset by one increment.
Under floor heating systems are normally max
flow line temperature set to 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 number
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 confirmed, 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.
NIBE™ F1255PC
Chapter 6 | Commissioning and adjusting
33
7 Control - Introduction
Display unit
F
A Display
INDOOR CLIMATE
■ Standby ( )
B Status lamp
INFO
C
■ Emergency mode (
D Back button
F1255PC
A
Display
B
Status lamp
Control knob
F
Switch
G USB port
)
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.
OK button
E
The switch assumes three positions:
■ On ( )
HOT WATER
HEAT PUMP
Switch (SF1)
G
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 www.nibeuplink.com and click the "Software" tab to download the latest software for
your installation.
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.
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.
C
OK button
The OK button is used to:
■ confirm selections of sub menus/options/set
values/page in the start guide.
D
Back button
The back button is used to:
■ go back to the previous menu.
■ change a setting that has not been confirmed.
E
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).
34
Chapter 7 | Control - Introduction
NIBE™ F1255PC
Symbols in the display
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.
Outdoor
temperature
Indoor temperature - (if room sensors are installed)
INDOOR CLIMATE
HOT WATER
The following symbols can appear in the display during
operation.
Symbol
Description
This symbol appears by the information
sign if there is information in menu 3.1 that
you should note.
Hot water temp.
These two symbols indicate whether the
compressor or addition is blocked in
F1255PC.
Information about
operation
SERVICE
HEAT PUMP
Temporary lux (if activated)
INFO
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.
Estimated amount of hot water
Blocking the compressor.
Blocking additional heat.
Menu 1 - INDOOR CLIMATE
Setting and scheduling the indoor climate. See information in the help menu or user manual.
This symbol appears if periodic increase or
lux mode for the hot water is activated.
Menu 2 - HOT WATER
Setting and scheduling hot water production. See information in the help menu or user manual.
This symbol indicates whether "holiday
setting" is active in 4.7.
Menu 3 - INFO
This symbol indicates whether F1255PC
has contact with NIBE Uplink.
Display of temperature and other operating information
and access to the alarm log. See information in the help
menu or user manual.
Menu 4 - HEAT PUMP
This symbol indicates the actual speed of
the fan if the speed has changed from the
normal setting.
Setting time, date, language, display, operating mode
etc. See information in the help menu or user manual.
Accessory NIBE FLM is needed.
Menu 5 - SERVICE
This symbol indicates whether pool heating
is active.
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 40.
Accessory needed.
This symbol indicates whether cooling is
active.
Accessory needed.
NIBE™ F1255PC
Chapter 7 | Control - Introduction
35
Menu number – marked sub menu
Name and menu number – main menu
Symbol – main
menu
INDOOR CLIMATE
HOT WATER
INDOOR CLIMATE 1
temperature
ventilation
normal
scheduling
off
advanced
HEAT PUMP
INFO
Marked main menu
Symbols – 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.
Status information – sub menus
Name – sub menus
Setting a value
time & date4.4
time
24 h
Selecting menu
12 h
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.
date
day
month
year
Selecting options
comfort mode2.2
economy
normal
luxury
Alternative
In an options menu the current selected option is
indicated by a green tick.
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.
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.
36
Chapter 7 | Control - Introduction
NIBE™ F1255PC
Use the virtual keyboard
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.
Different keyboards
The help text often consists of several windows that you
can scroll between using the control knob.
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
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.
If the start guide is left on this page it closes
automatically in
60 min
NIBE™ F1255PC
Chapter 7 | Control - Introduction
37
8 Control - Menus
Menu 1 - INDOOR CLIMATE
1 - INDOOR CLIMATE
1.1 - temperature
1.1.1 - heating
1.1.2 - cooling
1.2 - ventilation *
1.3 - scheduling
1.3.1 - heating
1.3.2 - cooling
1.3.3 - ventilation *
1.9 - advanced
1.9.1 - curve
1.9.1.1 heating curve
1.9.1.2 - cooling curve
1.9.2 - external adjustment
1.9.3 - min. flow line temp.
1.9.3.1 - heating
1.9.3.2 - cooling
1.9.4 - room sensor settings
1.9.5 - cooling settings
1.9.6 - fan return time *
1.9.7 - own curve
1.9.7.1 - heating
1.9.7.2 - cooling
1.9.8 - point offset
1.9.9 - night cooling
1.9.11 - +Adjust
1.9.12 - FLM cooling*
Menu 2 - HOT WATER
2 - HOT WATER
2.1 - temporary lux
2.2 - comfort mode
2.3 - scheduling
2.9 - advanced
2.9.1 - periodic increase
2.9.2 - hot water recirc.
Menu 3 - INFO
3 - INFO
3.1 - service info
3.2 - compressor info
3.3 - add. heat info
3.4 - alarm log
3.5 - indoor temp. log
* Accessories are needed.
38
Chapter 8 | Control - Menus
NIBE™ F1255PC
Menu 4 - HEAT PUMP
4 - HEAT PUMP
4.1 - plus functions
4.1.1 - pool *
4.1.3 - internet
4.1.3.1 - NIBE Uplink
4.1.3.8 - tcp/ip settings
4.1.3.9 - proxy settings
4.1.4 - sms *
4.1.5 - SG Ready
4.1.6 - smart price adaption™
4.1.7 - smart home
4.2 - op. mode
4.3 - my icons
4.4 - time & date
4.6 - language
4.7 - holiday setting
4.9 - advanced
4.9.1 - op. prioritisation
4.9.2 - auto mode setting
4.9.3 - degree minute setting
4.9.4 - factory setting user
4.9.5 - schedule blocking
* Accessory needed.
NIBE™ F1255PC
Chapter 8 | Control - Menus
39
Menu 5 - SERVICE
Overview
5 - SERVICE
5.1 - operating settings
5.1.1 - hot water settings
5.1.2 - max flow line temperature
5.1.3 - max diff flow line temp.
5.1.4 - alarm actions
5.1.5 - fan sp. exhaust air *
5.1.7 - br pmp al set.
5.1.8 - operating mode brine pump
5.1.9 - brine pump speed
5.1.10 - op. mod heat med pump
5.1.11 - pump speed heating medium
5.1.12 - internal electrical addition
5.1.14 - flow set. climate system
5.1.22 - heat pump testing
5.1.24 - blockFreq
5.2 - system settings
5.3 - accessory settings
5.3.1 - FLM *
5.3.2 - shunt controlled add. heat *
5.3.3 - extra climate system *
5.3.4 - solar heating *
5.3.6 - step controlled add. heat
5.3.8 - hot water comfort *
5.3.11 - modbus *
5.4 - soft in/outputs
5.5 - factory setting service
5.6 - forced control
5.7 - start guide
5.8 - quick start
5.9 - floor drying function
5.10 - change log
* Accessory needed.
Go to the main menu and hold the Back button in for 7
seconds to access the Service menu.
Sub-menus
Menu SERVICE has orange text and is intended for the
advanced user. This menu has several sub-menus. Status
information for the relevant menu can be found on the
display to the right of the menus.
operating settings Operating settings for the heat
pump.
system settings System settings for the heat pump, activating accessories etc.
accessory settings Operational settings for different
accessories.
soft in/outputs Setting software controlled in and outputs on the input circuit board (AA3).
40
Chapter 8 | Control - Menus
factory setting service Total reset of all settings (including settings available to the user ) to default values.
forced control Forced control of the different components in the heat pump.
start guide Manual start of the start guide which is run
the first time the heat pump is started.
quick start Quick starting the compressor.
NOTE
Incorrect settings in the service menus can
damage the heat pump.
Menu 5.1 - operating settings
Operating settings can be made for the heat pump in
the sub menus.
NIBE™ F1255PC
Menu 5.1.1 - hot water settings
Caution
Underfloor heating systems are normally max
flow line temperature set between 35 and 45
°C.
start temp. economy / normal / lux
Setting range: 5 – 70 °C
Factory setting (°C):
economy
normal
luxury
40
40
44
44
47
47
Enamel
Stainless
Check the max floor temperature with your floor
supplier.
Menu 5.1.3 - max diff flow line temp.
max diff compressor
Setting range: 1 – 25 °C
stop temp. economy / normal / lux
Default value: 10 °C
Setting range: 5 – 70 °C
max diff addition
Factory setting (°C):
Setting range: 1 – 24 °C
economy
normal
luxury
44
44
48
48
51
51
Enamel
Stainless
Default value: 3 °C
Here you set the maximum permitted difference
between the calculated and actual supply temperature
during compressor respectively add. heat mode. Max
diff. additional heat can never exceed max diff. compressor
stop temp. per. increase
max diff compressor
Setting range: 55 – 70 °C
When the current supply temperature deviates from
the set value compared to that calculated, the heat pump
is forced to stop irrespective of the degree-minute value.
Factory setting: 55 °C
high power
Setting range: on/off
Factory setting: off
Here you set the start and stop temperature of the hot
water for the different comfort options in menu 2.2 as
well as the stop temperature for periodic increase in
menu 2.9.1.
For a higher charge output click the high output selection.
With "high power" activated, the hot water is charged
at a higher output than in the standard mode and thus
gives a higher hot water capacity.
Menu 5.1.2 - max flow line temperature
If the current supply temperature exceeds the calculated
flow with set value, the degree minute value is set to 0.
The compressor in the heat pump stops when there is
only a heating demand.
max diff addition
If "addition” is selected and activated in menu 4.2 and
the present supply temp exceeds the calculated with
set value, the additional heat is forced to stop.
Menu 5.1.4 - alarm actions
Select how you want the heat pump to alert you that
there is an alarm in the display here.
The different alternatives are that the heat pump stops
producing hot water (default setting) and/or reduces
the room temperature.
climate system
Caution
Setting range: 5-70 °C
If no alarm action is selected, it can result in
higher energy consumption in the event of an
alarm.
Default value: 60 °C
Set the maximum supply temperature for the climate
system here. If the installation has more than one climate
system, individual maximum supply temperatures can
be set for each system. Climate systems 2 - 8 cannot be
set to a higher max supply temperature than climate
system 1.
Menu 5.1.5 - fan sp. exhaust air (accessory is
required)
normal and speed 1-4
Setting range: 0 – 100 %
Set the speed for the five different selectable speeds for
the fan here.
NIBE™ F1255PC
Chapter 8 | Control - Menus
41
Caution
An incorrectly set ventilation flow can damage
the house and may also increase energy consumption.
Menu 5.1.7 - br pmp al set.
brine pump speed
Setting range: auto / manual
Default value: auto
speed in wait mode
min. brine out
Setting range: 1 - 100 %
Setting range: -12 – 15 °C
Factory setting: 70 %
Default value: -8 °C
manual
min. brine out
Set the temperature at which the heat pump is to activate the alarm for low temperature in outgoing brine.
If "automatic reset" is selected, the alarm resets when
the temperature has increased by 1 °C below the set
value.
Setting range: 1 - 100 %
Factory setting: 100 %
speed passive cooling
Setting range: 1 - 100 %
Factory setting: 100 %
The compressor winds down when the brine temperature reaches the set minimum value for brine temperature. Compressor control attempts to maintain the brine
at a temperature 2 ° greater than the set value for brine
out.
Set the speed of the brine pump here. Select "auto" if
the speed of the brine pump is to be regulated automatically (factory setting) for optimal operation.
Menu 5.1.8 - operating mode brine pump
The brine pump speed during passive cooling operation
(the brine pump then runs in manual operation) can also
be set here.
op. mode
Setting range: intermittent, continuous, 10 days continuous
Default value: intermittent
Set the operating mode of the brine pump here.
For manual operation of the brine pump deactivate
"auto" and set the value to between 1 and 100%.
If the continuous operating mode (see "Menu 5.1.8 operating mode brine pump", page 42) has been selected one can also choose waiting mode. The circulation
pump continues to run while the compressor stops.
Menu 5.1.10 - op. mod heat med pump
intermittent: The brine pump starts approx. 20 seconds
before and stops approx.20 seconds after the compressor.
op. mode
continuous: Continuous operation.
Default value: auto
10 days continuous: Continuous operation for 10 days.
Then the pump shifts to intermittent operation.
TIP
You can use “10 days continuous" at start-up to
obtain continuous circulation during a start-up
time in order to make it easier to bleed the system.
42
Menu 5.1.9 - brine pump speed
Chapter 8 | Control - Menus
Setting range: auto, intermittent
Set the operating mode of the heating medium pump
here.
auto: The heating medium pump runs according to the
current operating mode for F1255PC.
intermittent: The heating medium pump starts approx.
20 seconds before and stops at the same time as the
compressor.
NIBE™ F1255PC
Menu 5.1.11 - pump speed heating medium
Operating status
Setting range: auto / manual
Default value: auto
Manual setting, hot water
Setting range: 1 - 100 %
Default values: 70 %
Manual setting, heating
Setting range: 1 - 100 %
The heat pump speed during active and passive cooling
operation respectively (the brine pump then runs in
manual operation) can also be set here.
Menu 5.1.12 - internal electrical addition
fuse size
Setting range: 1 - 200 A
Default values: 25 A
transformation ratio
Setting range: 300 - 3000
Factory setting: 300
Default values: 70 %
Manual setting, pool
Setting range: 1 - 100 %
Default values: 70 %
wait mode
Setting range: 1 - 100 %
Default values: 30 %
max. allowed speed
Setting range: 50 - 100 %
Default values: 100 %
speed passive cooling
Here you set the max. electrical output of the internal
electrical addition in F1255PC and the fuse size for the
installation.
Here you can also check which current sensor is installed
on which incoming phase to the property (this requires
current sensors to be installed, see page 24). Check by
marking "detect phase order" and pressing the OK button.
The results of these checks appear just below the menu
selection "detect phase order".
Menu 5.1.14 - flow set. climate system
presettings
Setting range: 1 - 100 %
Setting range: radiator, floor heat., rad. + floor heat.,
DOT °C
Default values: 70 %
Default value: radiator
Setting range DOT: -40.0 – 20.0 °C
Set the speed at which the heating medium pump is to
operate in the present operating mode. Select "auto" if
the speed of the heating medium pump is to be regulated automatically (factory setting) for optimal operation.
Factory setting DOT: -18.0 °C
If "auto" is activated for heating operation you can also
make the setting "max. allowed speed", which restricts
the heating medium pump and does not allow it to run
at a higher speed than the set value.
Factory setting dT at DOT: 10.0
For manual operation of the heating medium pump,
deactivate "auto" for the current operating mode and
set the value to between 0 and 100% (the previously set
value for "max. allowed speed" no longer applies).
"heating" means operating mode heating for the heating medium pump.
"wait mode" means heating or cooling operating modes
for the heating medium pump but when the heat pump
has neither a need for compressor operation nor electrical addition and slows down.
"hot water" means operating mode hot water for the
heating medium pump.
"pool" (accessory required) means operating mode pool
heating for the heating medium pump.
"cooling" means operating mode cooling for the heating
medium pump.
NIBE™ F1255PC
own setting
Setting range dT at DOT: 0.0 – 25.0
Setting range DOT: -40.0 – 20.0 °C
Factory setting DOT: -18.0 °C
The type of heating distribution system the heating
medium pump (GP1) works towards is set here.
dT at DOT is the difference in degrees between flow and
return temperatures at dimensioned outdoor temperature.
Menu 5.1.22 - heat pump testing
NOTE
This menu is intended for testing F1255PC according to different standards.
Use of this menu for other reasons may result
in your installation not functioning as intended.
This menu contains several sub-menus, one for each
standard.
Chapter 8 | Control - Menus
43
Menu 5.1.24 - blockFreq
Menu 5.3.1 - FLM
blockFreq 1
continuous pump op.
Selectable setting range in the display:
Setting range: on/off
start: 17 – 115 Hz
Factory setting: off
stop: 22 – 120 Hz
Maximum setting range: 50 Hz.
blockFreq 2
Selectable setting range in the display:
start: 17 – 115 Hz
stop: 22 – 120 Hz
Maximum setting range: 50 Hz.
time between defrosts
Setting range: 1 – 30 h
Default value: 10 h
months btwn filter alarms
Setting range: 1 – 12
Default value: 3
activate cooling
Here you can set a frequency range where the compressor is blocked. The parameters for the setting range
differ depending on which product is controlled by the
setting.
NOTE
A large blocked frequency range can cause the
compressor to run jerkily.
Menu 5.2 - system settings
Make different system settings for the heat pump here,
e.g. which accessories are installed.
There are two ways of activating connected accessories.
You can either highlight the alternative in the list or use
the automatic function "search installed acc.".
search installed acc.
Mark "search installed acc." and press the OK button to
automatically find connected accessories for F1255PC.
Caution
Setting range: on/off
Factory setting: off
continuous pump op.: Select for continuous operation
of the circulation pump in the exhaust air module.
time between defrosts: Set the minimum time that
must pass between defrostings of the heat exchanger
in the exhaust air module.
When the exhaust air module is in operation the heat
exchanger is cooled so that ice builds up on it. When too
much ice builds up the heat transfer capacity of the heat
exchanger is reduced and defrosting is required. Defrosting warms up the heat exchanger so that the ice melts
and runs off via the condensation hose.
months btwn filter alarms: Set how many months
should pass before the heat pump informs that it is time
to clean the filter in the exhaust air module.
Clean the exhaust air module's air filter regularly, how
often depends on the amount of dust in the ventilation
air.
Certain accessories are not found automatically
but must be ticked off by hand, see menu 5.4.
activate cooling: Activate cooling via the exhaust air
module here. When the function has been activated, the
cooling settings are displayed in the menu system.
NOTE
See the accessory installation instructions for function
description.
Only mark the option for ground water pump
if the accessory AXC 40 is to be used to control
the circulation pump.
Menu 5.3 - accessory settings
The operating settings for accessories that are installed
and activated are made in the sub-menus for this.
44
Chapter 8 | Control - Menus
NIBE™ F1255PC
Menu 5.3.2 - shunt controlled add. heat
Menu 5.3.3 - extra climate system
prioritised additional heat
use in heating mode
Setting range: on/off
Setting range: on/off
Factory setting: off
Factory setting: on
start diff additional heat
use in cooling mode
Setting range: 0 – 2000 GM
Setting range: on/off
Default values: 400 GM
Factory setting: off
minimum running time
mixing valve amplifier
Setting range: 0 – 48 h
Setting range: 0.1 – 10.0
Default value: 12 h
Default value: 1.0
min temp.
mixing valve step delay
Setting range: 5 – 90 °C
Setting range: 10 – 300 s
Default value: 55 °C
Default values: 30 s
mixing valve amplifier
Setting range: 0.1 –10.0
Default value: 1.0
mixing valve step delay
Setting range: 10 – 300 s
Default values: 30 s
Set when the addition is to start, the minimum run time
and the minimum temperature for external addition
with shunt here. External addition with shunt is for example a wood/oil/gas/pellet boiler.
You can set shunt valve amplification and shunt valve
waiting time.
Selecting "prioritised additional heat" uses the heat from
the external additional heat instead of the heat pump.
The shunt valve is regulated as long as heat is available,
otherwise the shunt valve is closed.
See the accessory installation instructions for function
description.
NIBE™ F1255PC
In menu 5.3.3, you choose the climate system (2 - 8) you
wish to set. In the next menu you can make settings for
the climate system that you have selected.
If the heat pump is connected to more than one climate
system, condensation may occur in these, if they are not
intended for cooling.
To prevent condensation, check that "use in heating
mode" is checked for the climate systems that are not
intended for cooling. This means that the sub-shunts to
the extra climate systems close, when cooling operation
is activated.
Caution
This setting option only appears if "passive/active cooling 2-pipe" or "passive cooling 2-pipe"
is activated in menu 5.2.
The shunt amplification and shunt waiting time for the
different extra climate systems that are installed are also
set here.
See the accessory installation instructions for function
description.
Chapter 8 | Control - Menus
45
Menu 5.3.4 - solar heating
start delta-T
Setting range: 1 - 40 °C
Default value: 8 °C
stop delta-T
start delta-T, stop delta-T: Here you can set the temperature difference between solar panel and solar tank at
which the circulation pump is to start and stop.
max. tank temperature, max. solar collector temp.:
Here you can set the maximum temperatures in tank
respectively solar panel at which the circulation pump
is to stop. This is to protect against excess temperatures
in the solar tank.
Setting range: 5 - 110 °C
If the unit has an anti-freeze function, solar panel cooling
and/or passive/active recharging you can activate them
here. When the function has been activated, you can
make settings for them. "solar panel cooling", "passive
recharging" and "active recharging" cannot be combined,
only one function can be activated.
Default value: 95 °C
freeze protection
max. solar collector temp.
anti-freeze temperature: Here you can set the temperature in the solar panel at which the circulation pump is
to start to prevent freezing.
Setting range: 0 - 40 °C
Default value: 4 °C
max. tank temperature
Setting range: 80 - 200 °C
Default value: 125 °C
anti-freeze temperature
Setting range: -20 - +20 °C
Default value: 2 °C
start solar collector cooling
solar panel cooling
start solar collector cooling: If the temperature in the
solar panel is greater than this setting at the same time
that the temperature in the solar tank is greater than
the set maximum temperature, the external function for
cooling is activated.
Setting range: 80 - 200 °C
passive recharging
Default value: 110 °C
activation temperature: If the temperature in the solar
panel is greater than this setting, the function activates.
The function is blocked for an hour if the temperature
of the brine in the heat pump (BT10) is higher than the
set value for "max brine in" in menu 5.1.7
passive recharging - activation temperature
Setting range: 50 - 125 °C
Default value: 110 °C
passive recharging - deactivation temperature
Setting range: 30 - 90 °C
Default value: 50 °C
active recharging - activating dT
Setting range: 8 - 60 °C
Default value: 40 °C
active recharging - deactivating dT
Setting range: 4 - 50 °C
Default value: 20 °C
deactivation temperature: If the temperature in the
solar panel is less than this setting, the function deactivates.
active recharging
activating dT: If the difference between the temperature
in the solar panel (BT53) and the temperature of the
brine in the heat pump (BT10) is greater than this setting
the function is activated. The function is blocked for an
hour if the temperature of the brine in the heat pump
(BT10) is higher than the set value for "max brine in" in
menu 5.1.7
deactivating dT: If the difference between the temperature in the solar panel (BT53) and the temperature of
the brine in the heat pump (BT10) is less than this setting
the function deactivates.
See the accessory installation instructions for function
description.
46
Chapter 8 | Control - Menus
NIBE™ F1255PC
Menu 5.3.6 - step controlled add. heat
start diff additional heat
If this alternative has been activated, you can set the
outgoing hot water temperature, shunt amplification
and shunt waiting time for the mixer valve.
Default values: 400 GM
outgoing hot water: Set the temperature at which the
mixing valve is to restrict hot water from the water
heater.
diff. between additional steps
See the accessory installation instructions for function
description.
Setting range: 0 – 2000 GM
Setting range: 0 – 1000 GM
Default values: 100 GM
Menu 5.3.11 - modbus
max step
address
Setting range
(binary stepping deactivated): 0 – 3
Factory setting: address 1
Setting range
(binary stepping activated): 0 – 7
Default value: 3
From and including Modbus 40 version 10 the address
can be set between 1 - 247. Earlier versions have a static
address.
binary stepping
See the accessory installation instructions for function
description.
Setting range: on/off
Menu 5.4 - soft in/outputs
Factory setting: off
Here you can select which in/output on the terminal
block (X6) the external contact function (see installation
manual) must be connected to.
Make settings for step controlled addition here. Step
controlled addition is for example an external electric
boiler.
It is possible, for example, to select when the additional
heat is to start, to set the maximum number of permitted
steps and whether binary stepping is to be used.
When binary stepping is deactivated (off), the settings
refer to linear stepping.
See the accessory installation instructions for function
description.
Menu 5.3.8 - hot water comfort
activating the mixing valve
Here you can select the in/output on the input circuit
board (AA3) the external contact function (page 24) is
to be connected to.
Selectable inputs on terminal block AUX1-5 (AA3-X6:918) and output AA3-X7 (on the input circuit board).
Menu 5.5 - factory setting service
All settings can be reset (including settings available to
the user) to default values here.
NOTE
When resetting, the start guide is displayed the
next time the heat pump is restarted.
Setting range: on/off
Factory setting: off
Menu 5.6 - forced control
outgoing hot water
You can force control the different components in the
heat pump and any connected accessories here.
Setting range: 40 - 65 °C
Default value: 55 °C
mixing valve amplifier
Setting range: 0.1 – 10.0
Default value: 1.0
NOTE
Forced control is only intended to be used for
troubleshooting purposes. Using the function
in any other way may cause damage to the
components in your climate system.
mixing valve step delay
Menu 5.7 - start guide
Setting range: 10 – 300 s
When the heat pump is started for the first time the start
guide starts automatically. Start it manually here.
Default values: 30 s
See page 30 for more information about the start guide.
Make settings for the hot water comfort here.
See the accessory installation instructions for function
description.
activating the mixing valve: Activate here whether a
mixer valve for limiting the temperature of hot water
from the water heater is installed.
NIBE™ F1255PC
Chapter 8 | Control - Menus
47
Menu 5.8 - quick start
TIP
It is possible to start the compressor from here.
If operating mode "add. heat only" is to be used,
select it in menu 4.2.
Caution
There must be a heating or hot water demand
to start the compressor.
Caution
Do not quick start the compressor too many
times over a short period of time as this may
damage the compressor and its surrounding
equipment.
For a more even flow temperature the addition
can be started earlier by setting "start for addition" in menus 4.9.2 to -80. When set under
floor drying periods have stopped, reset the
menus 4.2 and 4.9.2 as per previous settings.
Menu 5.10 - change log
Read off any previous changes to the control system
here.
The date, time and ID no. (unique to certain settings)
and the new set value is shown for every change.
Menu 5.9 - floor drying function
length of period 1 – 7
NOTE
Setting range: 0 – 30 days
The change log is saved at restart and remains
unchanged after factory setting.
Factory setting, period 1 – 3, 5 – 7: 2 days
Factory setting, period 4: 3 days
temp. period 1 – 7
Setting range: 15 – 70 °C
Default value:
temp. period 1
temp. period 2
temp. period 3
temp. period 4
temp. period 5
temp. period 6
temp. period 7
20 °C
30 °C
40 °C
45 C
40 °C
30 °C
20 °C
Set the function for under floor drying here.
You can set up to seven period times with different calculated flow temperatures. If less than seven periods are
to be used, set the remaining period times to 0 days.
Mark the active window to activate the underfloor drying
function. A counter at the bottom shows the number of
days the function has been active. The function counts
degree minutes as during normal heating operation but
for the supply temperatures that are set for the respective period.
NOTE
During under floor drying, the heating medium
pump in 100% runs, regardless of the setting in
menu 5.1.10.
48
Chapter 8 | Control - Menus
NIBE™ F1255PC
9 Service
Service actions
XL1
XL4
XL3
XL6
XL2
XL7
NOTE
Servicing should only be carried out by persons
with the necessary expertise.
SF1
When replacing components on F1255PC only
replacement parts from NIBE may be used.
F1255
Emergency mode
NOTE
The switch (SF1) must not be moved to " " or
" " until F1255PC has been filled with water.
Component parts in the product can be damaged.
Emergency mode is used in event of operational interference and in conjunction with service. Hot water is not
produced in emergency mode.
Emergency mode is activated by setting switch (SF1) in
mode " ". This means that:
■ The status lamp illuminates yellow.
FD1-BT30
QM34
QM31
QM32
QM33
■ The display is not lit and the control computer is not
connected.
■ The temperature at the immersion heater is controlled
by the thermostat (FD1-BT30). It can be set either to
35 or 45 °C.
■ The compressor and the brine system are off and only
the heating medium pump and the electric additional
heat are active. The additional heat power in emergency mode is set in the immersion heater board
(AA1). See page 23 for instructions.
Draining the water heater
The siphon principle is used to empty the hot water
heater. This can be done either via the drain valve on the
incoming cold water pipe or by inserting a hose into the
cold water connection.
Draining the climate system
In order to carry out service on the climate system, it may
be easier to drain the system first. This can be done in
different ways depending on what needs doing:
GP1
GP2
K
LE
K
LE
QM2
QM1
NOTE
There may be some hot water when draining
the heating medium side/climate system. There
is a risk of scalding.
Draining the heating medium side in the cooling
module
If, for example, the heating medium pump requires replacing or the cooling module requires servicing, drain
the heating medium side as follows:
1. Close the shut-off valves to heating medium side
(QM31) and (QM32).
2. Connect a hose to the bleed valve (QM1) and open
the valve. Some liquid will run out.
NIBE™ F1255PC
Chapter 9 | Service
49
3. Air must get into the system for the remaining liquid
to run out. To let in air, slacken off the connection
slightly at the shut-off valve (QM32) that joins the
heat pump with the cooling module.
When the heating medium side is drained, the required
service can be performed and/or replacement of any
components carried out.
Draining the heating medium system in the heat
pump
If the heat pump requires servicing, drain the heating
medium side as follows:
1. Close the shut-off valves outside the heat pump for
the heating medium side (return and flow line).
2. Connect a hose to the bleed valve (QM1) and open
the valve. Some liquid will run out.
3. Air must get into the system for the remaining liquid
to run out. To let in air, slacken off the connection
slightly at the shut-off valve that joins the heat pump
with the cooling module (XL2).
When the heating medium side is empty the requisite
service can be carried out.
Draining the entire climate system
If the entire climate system requires draining, do this as
follows:
1. Connect a hose to the bleed valve (QM1) and open
the valve. Some liquid will run out.
2. Air must get into the system for the remaining liquid
to run out. To allow air in, unscrew the bleed screw
on the highest radiator in the house.
1. Close the shut-off valve outside the heat pump for
the brine system.
2. Connect a hose to the drain valve (QM2), place the
other opening of the hose in a container and open
the valve. A small amount of brine will flow into the
container.
3. Air must get into the system for the remaining brine
to run out. To let in air, slacken off the connection
slightly at the shut-off valve that joins the brine side
with the heat pump at connection (XL7).
When the brine side is empty the requisite service can
be carried out.
Helping the circulation pump to start
1. Shut off, F1255PC by setting the switch ((SF1)) to "
".
Remove
the front cover
2.
3. Remove the cover for the cooling module.
4. Loosen the venting screw (QM5) with a screwdriver.
Hold a cloth around the screwdriver blade as a small
amount of water may run out.
5. Insert a screwdriver and turn the pump motor
around.
6. Screw in the venting screw (QM5).
7. Start F1255PC by setting the switch (SF1) to " " and
check whether the circulation pump works.
It is usually easier to start the circulation pump with
F1255PC running, switch (SF1) set to " ". If the circulation
pump is helped to start while F1255PC is running, be
prepared for the screwdriver to jerk when the pump
starts.
When the climate system is empty the requisite service
can be carried out.
Emptying the brine system
Vent
screw (QM5)
Luftningsskruv
In order to service the brine system it may be easier to
drain the system first. This can be done in different ways
depending on what needs doing:
Draining the brine system in the cooling module
If, for example, the brine pump requires replacing or the
cooling module requires servicing, drain the brine system
by:
1. Close the shut-off valves to brine system (QM33) and
(QM34).
2. Connect a hose to the drain valve (QM2), place the
other opening of the hose in a container and open
the valve. A small amount of brine will flow into the
container.
3. Air must get into the system for the remaining brine
to run out. To let in air, slacken off the connection
slightly at the shut-off valve (QM33) that joins the
heat pump with the cooling module.
GP1
The image shows an example of what a circulation pump can look
like.
When the brine side is empty the requisite service can
be carried out.
Draining the brine system in the heat pump
If the heat pump requires servicing, drain the brine system by:
50
Chapter 9 | Service
NIBE™ F1255PC
F1255
Temperature sensor data
1
Temperature
(°C)
Resistance
(kOhm)
Voltage (VDC)
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
351.0
251.6
182.5
133.8
99.22
74.32
56.20
42.89
33.02
25.61
20.02
15.77
12.51
10.00
8.045
6.514
5.306
4.348
3.583
2.968
2.467
2.068
1.739
1.469
1.246
1.061
0.908
0.779
0.672
3.256
3.240
3.218
3.189
3.150
3.105
3.047
2.976
2.889
2.789
2.673
2.541
2.399
2.245
2.083
1.916
1.752
1.587
1.426
1.278
1.136
1.007
0.891
0.785
0.691
0.607
0.533
0.469
0.414
Close the shut-off valves (QM31), (QM32), (QM33)
and (QM34).
Drain the compressor module according to the instructions on page 49
QM31
QM33
QM34
QM32
F1255
2
Pull off the lock catches.
QM31
3
2
LE
K
3
4
Disconnect the pipe connection at the shut-off valve
(QM31).
Remove the two screws.
4
LE
K
Pulling out the cooling module
The cooling module can be pulled out for service and
transport.
NOTE
Shut off the heat pump and turn off the current
on the safety breaker.
Caution
The cooling module is easy to remove if it is
drained first (see page 49).
Caution
Remove the front cover according to the description on page 8.
NIBE™ F1255PC
Chapter 9 | Service
51
5
Remove the connection from the base card (AA2)
using a screwdriver.
9
Carefully pull out the cooling module.
5
8
5
D
6
6
Disconnect the switches (A), (B) and (E) from the underside of the base card cabinet.
A
B
E
LE
K
F1255
9
7
C
E
7
Disconnect the connector (C) from the immersion
heater circuit board (AA1) using a screwdriver.
8
Disconnect the connector (D) from the joint circuit
board (AA100).
F1255
TIP
The cooling module is installed in reverse order.
NOTE
At reinstallation, the supplied O-rings must replace the existing ones at the connections to
the heat pump (see image).
QM33
F1255
QM34
52
Chapter 9 | Service
QM32
NIBE™ F1255PC
Menu 7.1 - update firmware
USB service outlet
update firmware7.1
start updating
choose another file
LEK
This allows you to update the software in F1255PC.
NOTE
The display unit is equipped with a USB socket that can
be used to update the software, save logged information
and manage the settings in F1255PC.
INDOOR CLIMATE
HOT WATER
For the following functions to work the USB
memory must contain files with software for
F1255PC from NIBE.
The fact box at the top of the display shows information
(always in English) of the most probable update that the
update software has selected form the USB memory.
This information states which product the software is
intended for, the software version and general information about them. If you wish to select another file than
the one selected, the correct file can be selected by
"choose another file".
USB
HEAT PUMP
INFO
start updating
Select “start updating" if you want to start the update.
You are asked whether you really want to update the
software. Respond "yes" to continue or "no" to undo.
USB 7
If you responded"yes" to the previous question the update starts and you can now follow the progress of the
update on the display. When the update is complete
F1255PC restarts.
NOTE
update firmware
logging
manage settings
When a USB memory is connected a new menu (menu
7) appears in the display.
NIBE™ F1255PC
A software update does not reset the menu
settings in F1255PC.
NOTE
If the update is interrupted before it is complete
(for example power cut etc.), the software can
be reset to the previous version if the OK button
is held in during start up until the green lamp
starts to illuminate (takes about 10 seconds).
Chapter 9 | Service
53
choose another file
Menu 7.3 - manage settings
update firmware7.1
manage settings 7.3
save settings
recover settings
Select “choose another file" if you do not want to use
the suggested software. When you scroll through the
files, information about the marked software is shown
in a fact box just as before. When you have selected a
file with the OK button you will return to the previous
page (menu 7.1) where you can choose to start the update.
Here you can manage (save as or retrieve from) all the
menu settings (user and service menus) in F1255PC with
a USB memory.
Via "save settings" you save the menu settings to the
USB memory in order to restore them later or to copy
the settings to another F1255PC.
NOTE
Menu 7.2 - logging
logging7.2
When you save the menu settings to the USB
memory you replace any previously saved settings on the USB memory.
Via "recover settings" you reset all menu settings from
the USB memory.
activated
interval
NOTE
5
sec
Reset of the menu settings from the USB
memory cannot be undone.
Setting range: 1 s – 60 min
Factory setting range: 5 s
Here you can choose how current measurement values
from F1255PC should be saved onto a log file on the USB
memory.
1. Set the desired interval between loggings.
2. Tick “activated".
3. The present values from F1255PC are saved in a file
in the USB memory at the set interval until “activated" is unticked.
NOTE
Untick "activated" before removing the USB
memory.
54
Chapter 9 | Service
NIBE™ F1255PC
10 Disturbances in comfort
In most cases, the heat pump notes operational interference (operational interference can lead to disturbance
in comfort) and indicates this with alarms and shows
action instructions in the display.
Info menu
All the heat pump measurement values are gathered
under menu 3.1 in the heat pump menu system. Looking
through the values in this menu can often simplify finding the source of the fault. See help menu or user
manual for more information about menu 3.1.
Manage alarm
Low pressure alarm
Caution
Selecting "aid mode” is not the same as correcting the problem that caused the alarm. The
status lamp will therefore continue to be red.
Troubleshooting
If the operational interference is not shown in the display
the following tips can be used:
Basic actions
Start by checking the following possible fault sources:
■ The switch's (SF1) position.
■ Group and main fuses of the accommodation.
■ The property's earth circuit breaker.
alarm
■ The heat pump's miniature circuit breaker (FA1).
info / action
■ The heat pump's temperature limiter (FD1).
reset alarm
■ Correctly set load monitor (if installed).
aid mode
In the event of an alarm, some kind of malfunction has
occurred, which is indicated by the status lamp changing
from green continuously to red continuously. In addition,
an alarm bell appears in the information window.
Low hot water temperature or a lack of hot
water
■ Closed or choked filling valve
– Open the valve.
■ Heat pump in incorrect operating mode.
– If mode "manual" is selected, select "addition".
Alarm
In the event of an alarm with a red status lamp a malfunction has occurred that the heat pump cannot remedy
itself. In the display, by turning the control knob and
pressing the OK button, you can see the type of alarm it
is and reset it. You can also choose to set the heat pump
to aid mode.
info / action Here you can read what the alarm means
and receive tips on what you can do to correct the
problem that caused the alarm.
reset alarm In most cases it is enough to select "reset
alarm" to correct the problem that caused the alarm. If
a green light illuminates after selecting "reset alarm" the
alarm has been remedied. If a red light is still visible and
a menu called ”alarm” is visible in the display, the problem that caused the alarm remains. If the alarm disappears and then returns, see the troubleshooting section
(page 55).
aid mode ”aid mode” is a type of emergency mode. This
means that the heat pump produces heat and/or hot
water despite there being some kind of problem. This
can mean that the heat pump's compressor is not running. In this case the immersion heater produces heat
and/or hot water.
NOTE
To select aid mode an alarm action must be selected in the menu 5.1.4.
■ Large hot water consumption.
– Wait until the hot water has heated up. Temporarily
increased hot water capacity (temporary lux) can be
activated in menu 2.1.
■ Too low hot water setting.
– Enter menu 2.2 and select a higher comfort mode.
■ Too low or no operating prioritisation of hot water.
– Enter menu 4.9.1 and increase the time for when
hot water is to be prioritised.
Low room temperature
■ Closed thermostats in several rooms.
– Set the thermostats to max, in as many rooms as
possible. Adjust the room temperature via menu 1.1,
instead of choking the thermostats.
■ Heat pump in incorrect operating mode.
– Enter menu 4.2. If mode "auto" is selected, select a
higher value on "stop heating" in menu 4.9.2.
– If mode "manual" is selected, select "heating". If this
is not enough, select "addition".
■ Too low set value on the automatic heating control.
– Enter menu 1.1 "temperature" and adjust the offset
heating curve up. If the room temperature is only
low in cold weather the curve slope in menu 1.9.1
"heating curve" needs adjusting up.
■ Too low or no operating prioritisation of heat.
– Enter menu 4.9.1 and increase the time for when
heating is to be prioritised.
NIBE™ F1255PC
Chapter 10 | Disturbances in comfort
55
■ "Holiday mode" activated in menu 4.7.
– Enter menu 4.7 and select "Off".
■ External switch for changing the room heating activ-
ated.
– Check any external switches.
■ Air in the climate system.
– Vent the climate system (see page 29).
■ Closed valves (QM20), (QM32) to the climate system.
(QM40), (QM41) to the climate system.
– Open the valves.
High room temperature
■ Too high set value on the automatic heating control.
– Enter menu 1.1 (temperature) and reduce the offset
heating curve. If the room temperature is only high
in cold weather the curve slope in menu 1.9.1
"heating curve" needs adjusting down.
■ External switch for changing the room heating activ-
ated.
– Check any external switches.
■ Filter blocked.
– Clean or replace the filter.
■ The ventilation is not adjusted.
– Order/implement ventilation adjustment.
■ Fan speed in forced mode.
– Enter menu 1.2 and select "normal".
■ External switch for changing the fan speed activated.
– Check any external switches.
The compressor does not start
■ There is no heating requirement.
– The heat pump does not call on heating nor hot
water.
■ Temperature conditions tripped.
– Wait until the temperature condition has been reset.
■ Minimum time between compressor starts has not
been reached.
– Wait 30 minutes and then check if the compressor
has started.
■ Alarm tripped.
Uneven room temperature.
■ Incorrectly set heating curve.
– Adjust the heating curve in menu 1.9.1..
■ Too high set value on "dT at DOT"..
– Enter menu 5.1.14 (flow set. climate system) and
reduce the value of "dT at DOT".
■ Uneven flow over the radiators.
– Adjust the flow distribution between the radiators.
Low system pressure
■ Not enough water in the climate system.
– Top up the water in the climate system (see page
29).
Low or a lack of ventilation
This part of the fault-tracing chapter only applies if the
NIBE FLM accessory is installed.
■ Filter (HQ10) blocked.
– Clean or replace the filter.
■ The ventilation is not adjusted.
– Order/implement ventilation adjustment.
– Follow the display instructions.
Whining noise in the radiators
■ Closed thermostats in the rooms and incorrectly set
heating curve.
– Set the thermostats to max. in as many rooms as
possible. Adjust the heating curve via menu 1.1, instead of choking the thermostats.
■ Circulation pump speed set too high.
– Enter menu 5.1.11 (pump speed heating medium)
and reduce the speed of the circulation pump.
■ Uneven flow over the radiators.
– Adjust the flow distribution between the radiators.
Gurgling sound
This part of the fault-tracing chapter only applies if the
NIBE FLM accessory is installed.
■ Not enough water in the water seal.
– Refill the water seal with water.
■ Choked water seal.
– Check and adjust the condensation water hose.
■ Exhaust air device blocked or throttled down too much.
– Check and clean the exhaust air devices.
■ Fan speed in reduced mode.
– Enter menu 1.2 and select "normal".
■ External switch for changing the fan speed activated.
– Check any external switches.
High or distracting ventilation
This part of the fault-tracing chapter only applies if the
NIBE FLM accessory is installed.
56
Chapter 10 | Disturbances in comfort
NIBE™ F1255PC
11 Accessories
Accessory card AXC 40
Exhaust air module FLM
This accessory is used to enable connection and control of
shunt controlled additional heat, step controlled additional
heat, external circulation pump or ground water pump.
FLM is an exhaust air module designed to combine recovery
of mechanical exhaust air with ground-source heating.
FLM
Bracket pack FLM
Part no. 067 060
Part no. 067 011
Part no. 067 083
Active/Passive cooling HPAC 40
Part no. 067 076
External electric additional heat ELK
Auxiliary relay HR 10
These accessories require accessories card AXC 40 (step
controlled addition).
Part no 067 309
ELK 5
Immersion heater
Base extension EF 45
5 kW, 1 x 230 V
This accessory can be used when pipes for the F1255PC
come up out of the floor.
Part no. 069 025
Part no 067 152
ELK 8
Immersion heater
Buffer vessel UKV
8 kW, 1 x 230 V
UKV 40
Part no. 069 026
Work tank for connection to heat pump system.
Part no. 088 470
ELK 15
Immersion heater
15 kW, 3 x 400 V
UKV 100
Part no. 069 022
Part no. 088 207
UKV 102
Part no. 080 310
UKV 200
ELK 213
Immersion heater
7-13 kW, 3 x 400 V
Part no. 069 500
Part no. 080 300
UKV 300
Extra shunt group ECS 40/ECS 41
Part no. 080 301
This accessory is used when F1255PC is installed in houses
with two or more different heating systems that require
different supply temperatures.
UKV 500
Part no. 080 302
Communications module MODBUS 40
MODBUS 40 enables F1255PC to be controlled and monitored using a DUC (computer sub-centre) in the building.
Communication is then performed using MODBUS-RTU.
ECS 40 (Max 80 m²)
ECS 41 (Min 80 m²)
Part no 067 287
Part no 067 288
Filling valve kit KB 25/32
Part no 067 144
Valve kit for filling brine in the collector hose. Includes
particle filter and insulation.
Communications module SMS 40
KB 25
(max 12 kW)
KB 32
(max 30 kW)
Part no 089 368
Part no 089 971
When there is no internet connection, you can use the accessory SMS 40 to control F1255PC via SMS.
Part no 067 073
NIBE™ F1255PC
Chapter 11 | Accessories
57
Free cooling PCS 44
This accessory is used when F1255PC is installed in an installation with passive cooling.
Part no 067 296
Level monitor NV 10
Part no. 089 315
Passive cooling PCM 42
Part no. 067 078
Pool heating POOL 40
POOL 40 is used to enable pool heating with F1255PC.
Part no 067 062
Room unit RMU 40
RMU 40 means that control and monitoring of the heat
pump can be carried out in a different part of the accommodation to where F1255PC is located.
Part no 067 064
Water heater/Accumulator tank
AHPS
Accumulator tank with a solar coil (copper) and a combined
pre-heating and post-heating coil (stainless steel) for hot
water production.
Part no. 056 283
AHP
Volume expansion vessel that is primarily used for expanding the volume together with AHPS.
Part no. 056 284
58
Chapter 11 | Accessories
NIBE™ F1255PC
12 Technical data
560
25-50
650*
650*
1775
70
Dimensions and setting-out coordinates
440
600
525
470
390
210
130
620
25
50
* This dimension applies at 90° angle on the brine pipes (side connection). The dimension can vary approx. ±100 mm in height as the
brine pipes partially consist of flexible pipes.
NIBE™ F1255PC
Chapter 12 | Technical data
59
Technical specifications
IP 21
1x230V
F1255PC
Electrical data
Rated voltage
Max operating current including 0 – 0.5 kW immersion heater (Recommended fuse rating). Arms
230V ~ 50Hz
15(16)
Max operating current including 1 – 1.5 kW immersion heater (Recommended fuse rating). Arms
20(20)
Max operating current including 2 – 2.5 kW immersion heater (Recommended fuse rating). Arms
24(25)
Max operating current including 3 – 4 kW immersion heater (Recommended fuse rating).
Arms
31(32)
Max operating current including 4.5 kW immersion heater (Recommended fuse rating).
Arms
33(40)
Additional power
kW
0.5/1/1.5/2/2.5/3
/3.5/4/4.5
3x400V
F1255PC
Electrical data
Rated voltage
Max operating current including 0 kW immersion heater (Recommended fuse rating).
Arms
Max operating current including 0.5 – 6.5 kW immersion heater (Recommended fuse rating). Arms
Additional power
kW
400V 3N ~ 50Hz
12(16)
16(16)
0.5/1/1.5/2/2.5/3
/3.5/4/4.5/5/5.5/6/6.5
1x230V and 3x400V
F1255PC
Output data according to EN 14511 nominal (50 Hz)
0/35
Rated output
Installed electrical output
COP
0/45
Rated output
Installed electrical output
COP
10/35
Rated output
Installed electrical output
COP
10/45
Rated output
Installed electrical output[
COP
SCOP according to EN 14825
Nominal heating output (designh)
SCOPEN14825 cold climate, 35 °C / 55 °C
SCOPEN14825 average climate, 35 °C / 55 °C
60
Chapter 12 | Technical data
kW
kW
3.15
0.67
4.72
kW
kW
2.87
0.79
3.61
kW
kW
4.30
0.66
6.49
kW
kW
3.98
0.83
4.79
kW
6
5.5 / 4.1
5.2 / 4.0
NIBE™ F1255PC
F1255PC
Energy rating, average climate
Efficiency class for space heating 35 °C / 55 °C
Space heating efficiency class of the system 35 °C / 55 °C1)
A++ / A++
A+++ / A+++
Efficiency class hot water / charging profile
Sound power level (LWA) acc to EN 12102 at 0/35
dB(A)
A / XL
36 – 43
Sound pressure level (LPA) calculated values according to EN ISO 11203 at 0/35 and 1m range
dB(A)
21 – 28
W
W
10 – 87
2 – 63
IP21
Electrical data
Output, Brine pump
Output, Heating medium pump
IP class
Refrigerant circuit
Type of refrigerant
Volume
Cut-out value pressostat HP
Difference pressostat HP
Cut-out value pressostat LP
Difference pressostat LP
Brine circuit
Energy class Brine pump
Max system pressure brine
Min system pressure brine
Nominal flow (50 Hz)
Max external avail. press at nom flow
Max/Min incoming Brine temp
Min. outgoing brine temp.
Heating medium circuit
Energy class circ-pump
Max system pressure heating medium
Min system pressure heating medium
Nominal flow (50 Hz)
Max external avail. press at nom flow
Max/Min heating medium temp
Pipe connections
Brine ext diam. CU pipe
Heating medium ext diam. CU pipes
Hot water connection external diam
Cold water connection external diam
Water heater
Volume water heater
Max pressure in water heater
Hot water heating capacity (comfort mode Normal) According to EN16147
Amount of hot water (40 °C)
COP DHW (load profile XL)
NIBE™ F1255PC
kg
MPa
MPa
MPa
MPa
R407C
1.16
3.2 (32 bar)
-0.7 (-7 bar)
0.15 (1.5 bar)
0.15 (1.5 bar)
MPa
MPa
l/s
kPa
°C
°C
low energy
0.45 (4.5 bar)
0.05 (0.5 bar)
0.18
64
see diagram
-12
MPa
MPa
l/s
kPa
°C
low energy
0.45 (4.5 bar)
0.05 (0.5 bar)
0.08
69
see diagram
mm
mm
mm
mm
28
22
22
22
l
MPa
approx. 180
1.0 (10 bar)
245
2.7
Chapter 12 | Technical data
61
F1255PC
Dimensions and weight
Width
Depth
Height
Required ceiling height 2)
Corrosion protection
Weight complete heat pump
Weight only cooling module
Part number, 1x230V
Part number, 3x400V
1)Reported
2)With
62
mm
mm
mm
mm
kg
kg
600
620
1800
1950
Rf
205
E
240
95
065 293
065 272
065 415
efficiency for the system takes the product's temperature regulator into account.
feet removed the height is approx. 1930 mm for F1255PC.
Chapter 12 | Technical data
NIBE™ F1255PC
Working range heat pump, compressor
operation
The compressor provides a supply temperature up to 65
°C, at 0 °C incoming brine temperature, the remainder
(up to 70°C) is obtained using the additional heat.
Diagram, passive cooling
Passive cooling, 21 °C return temperature nominal flow
brine/heating medium
Passiv kyla, 23 °C retur temp. nominelt flöde kb/vb
Angiven kyleffekt,
kW kW
Eliminated
power,
8
F1255PC
6
This diagram shows the working range below 75 % for
Arbetsområde under 75% för F1155-1255 6kW och för hela arbetsområdet 16 kW.
F1255PC.
Arbetsområde under 75% för F1155-1255 6kW och för hela arbetsområdet 16 kW.
4
Vattentemperatur
Vattentemperatur°C
Temperature,
Vattentemperatur
°C
0
°C
°C
70
70
70
60
60
60
50
50
50
40
40
40
30
30
30
20
20
20
10
10
10
0
00-15
-15
-15
2
10
11
12
13
15
14
Köldbärare
in °C
°C
Incoming brine
temp,
kW nominelt
66 kW
nominalflöde
flow
kW 22xxnominelt
flöde
66 kW
nominal
flow
-10
-10
-10
-5
-5
-5
0
00
5
55
10
10
10
15
15
15
°C
20
25
30
35°C
20
25
30
35
°C
20
25
35
Köldbärare
in,30
temperatur
Köldbärare
in,
temperatur
Incoming
temp, °C
Köldbärarebrine
in, temperatur
Framledning
Framledning
Flow
pipe
Framledning
Returledning
Return
pipe
Returledning
Returledning
Passive cooling, 23 °C return temperature nominal flow
brine/heating medium
Passiv kyla, 23 °C retur temp. nominelt flöde kb/vb
Angiven kyleffekt,
kW kW
Eliminated
power,
8
6
F1255PC
4
This diagram shows the working range above 75 % for
Arbetsområde över 75% för F1155-1255 6 kW.
Arbetsområde över 75% för F1155-1255 6 kW.
F1255PC
2
0
Vattentemperatur
Vattentemperatur °C
Temperature,
°C
10
°C
70
70
11
12
13
15
14
Köldbärare
in °C
°C
Incoming brine
temp,
60
60
kW nominelt
66 kW
nominalflöde
flow
50
50
40
40
kW 22xxnominelt
flöde
66 kW
nominal
flow
30
30
20
20
10
10
00
-15
-15
-10
-10
-5
-5
00
55
10
10
15
15
20
20
2525
3030
3535°C°C
Köldbärare in, temperatur
Köldbärare
in, temperatur
Incoming
brine
temp, °C
Framledning
Framledning
Flow
pipe
Returledning
Return
pipe
Returledning
Caution
For operation of F1255PC above 75% compressor speed, unlocking in menu 5.1.24 is required. This can produce a louder noise level
than the value stated in the technical specifications.
Diagram, dimensioning compressor speed
Heating mode 35 °C
Use this diagram to dimension the heat pump.
The percentages show approximate compressor speed.
F1255PC
Dimensionering kompr. hastighet för F1155-1255 -6 kW.
Angiven värmeeffekt
Specified
heating
kW
10
output, kW
100%
8
75%
6
50%
4
1%
2
0
-10
-5
0
5
10
15
20
25
30 °C
Köldbärare in
Brine in °C
Dimensionering kompr. hastighet för F1155-1255 -16 kW.
NIBE™ F1255PC
Angiven värmeeffekt
kW
25
Chapter 12 | Technical data
100%
20
15
50%
63
Cooling mode
Caution
To dimension heating dump, see the diagram
for heating operation.
Supply temperature, heating medium 35 °°C
Framledningstemp. Värmebärare 35 °C för F1155-1255 -6 kW.
F1255PC
Angiven värmeeffekt
Specified
cooling output, kW
kW
10
9
8
7
6
5
4
100%
50%
1%
3
2
1
0
-10
-5
0
5
10
15
20
25
30 °C
Köldbärare in
Brine in °C
Supply temperature, heating medium 50 °°C
Framledningstemp. Värmebärare 50 °C för F1155-1255 -6 kW.
F1255PC
Angiven värmeeffekt
Specified
cooling
kW
10
output, kW
9
8
100%
7
Framledningstemp.
Värmebärare 35 °C för F1155-1255 -16 kW.
6
5
Angiven
värmeeffekt
4
kW
25
3
2
20
1
0
15-10
50%
1%
100%
50%
-5
0
5
10
15
20
25
-5
0
5
10
15
20
25
10
30 °C
Köldbärare in
Brine in1%°C
5
0
-10
30 °C
Köldbärare in
Framledningstemp. Värmebärare 50 °C för F1155-1255 -16 kW.
Angiven värmeeffekt
kW
25
100%
50%
20
15
1%
10
5
0
-10
64
-5
0
5
Chapter 12 | Technical data
10
15
20
25
30 °C
Köldbärare in
NIBE™ F1255PC
Energy labelling
Information sheet
Supplier
NIBE AB
Model
Temperature application
F1255PC 1x230V
°C
XL
A++ / A++
Declared load profile for water heating
Seasonal space heating energy efficiency class, average
climate
Water heating energy efficiency class, average climate
Rated heat output (Pdesignh), average climate
Annual energy consumption space heating, average
climate
Annual energy consumption water heating, average
climate
Seasonal space heating energy efficiency, average climate
Water heating energy efficiency, average climate
Sound power level LWA indoors
Rated heat output (Pdesignh), cold climate
Rated heat output (Pdesignh), warm climate
Annual energy consumption space heating, cold climate
Annual energy consumption water heating, cold climate
Annual energy consumption space heating, warm climate
Annual energy consumption water heating, warm
climate
Seasonal space heating energy efficiency, cold climate
Water heating energy efficiency, cold climate
Seasonal space heating energy efficiency, warm climate
Water heating energy efficiency, warm climate
Sound power level LWA outdoors
NIBE™ F1255PC
35 / 55
A
kW
kWh
6
2,188 / 2,875
kWh
1,642
%
200 / 150
%
dB
102
42
kW
kW
kWh
6
6
2,481 / 3,287
kWh
1,642
kWh
1,408 / 1,852
kWh
1,642
%
%
%
211 / 157
102
201 / 151
%
dB
102
-
Chapter 12 | Technical data
65
Supplier
NIBE AB
Model
Temperature application
F1255PC 3x400V
°C
Seasonal space heating energy efficiency class, average
climate
Water heating energy efficiency class, average climate
Rated heat output (Pdesignh), average climate
Annual energy consumption space heating, average
climate
Annual energy consumption water heating, average
climate
Seasonal space heating energy efficiency, average climate
Water heating energy efficiency, average climate
Sound power level LWA indoors
Rated heat output (Pdesignh), cold climate
Rated heat output (Pdesignh), warm climate
Annual energy consumption space heating, cold climate
Annual energy consumption water heating, cold climate
Annual energy consumption space heating, warm climate
Annual energy consumption water heating, warm
climate
Seasonal space heating energy efficiency, cold climate
Water heating energy efficiency, cold climate
Seasonal space heating energy efficiency, warm climate
Water heating energy efficiency, warm climate
Sound power level LWA outdoors
66
Chapter 12 | Technical data
35 / 55
XL
A++ / A++
Declared load profile for water heating
A
kW
kWh
6
2,188 / 2,875
kWh
1,642
%
200 / 150
%
dB
102
42
kW
kW
kWh
6
6
2,481 / 3,287
kWh
1,642
kWh
1,408 / 1,852
kWh
1,642
%
%
%
211 / 157
102
201 / 151
%
dB
102
-
NIBE™ F1255PC
Data for energy efficiency of the package
Model
Temperature application
Controller, class
Controller, contribution to efficiency
Seasonal space heating energy efficiency of the package, average climate
Seasonal space heating energy efficiency class of the
package, average climate
Seasonal space heating energy efficiency of the package, cold climate
Seasonal space heating energy efficiency of the package, warm climate
F1255PC 1x230V
°C
35 / 55
%
%
VI
4
204 / 154
A+++
%
215 / 161
%
205 / 155
Model
Temperature application
Controller, class
Controller, contribution to efficiency
Seasonal space heating energy efficiency of the package, average climate
Seasonal space heating energy efficiency class of the
package, average climate
Seasonal space heating energy efficiency of the package, cold climate
Seasonal space heating energy efficiency of the package, warm climate
F1255PC 3x400V
°C
35 / 55
%
%
VI
4
204 / 154
A+++
%
215 / 161
%
205 / 155
The reported efficiency of the package also takes the controller into account. If an external supplementary boiler or solar heating is added
to the package, the overall efficiency of the package should be recalculated.
NIBE™ F1255PC
Chapter 12 | Technical data
67
Technical documentation
Model
F1255PC 1x230V
Type of heat pump
Air-water
Exhaust-water
Brine-water
Water-water
Low-temperature heat pump
Yes
No
Integrated immersion heater for additional heat
Yes
No
Heat pump combination heater
Yes
No
Climate
Average
Temperature application
Applied standards
Rated heat output
Prated
Cold
Declared capacity for space heating at part load and at outdoor temperature
Tj
Tj = -7 °C
Pdh
5.0
kW
Tj = +2 °C
Pdh
3.0
kW
Tj = +7 °C
Pdh
2.0
kW
Tj = +12 °C
Pdh
1.2
kW
Tj = biv
Pdh
5.4
kW
Tj = TOL
Pdh
5.4
kW
Tj = -15 °C (if TOL < -20 °C)
Pdh
kW
Bivalent temperature
°C
Min. outdoor air temperature
0.99
kW
-
Cycling interval efficiency
Max supply temperature
Power consumption in modes other than active mode
Off mode
POFF
0.002
kW
Additional heat
Rated heat output
Thermostat-off mode
PTO
0.007
kW
Standby mode
PSB
0.007
kW
Crankcase heater mode
PCK
0.009
kW
Pcych
Cdh
Other items
Capacity control
Variable
150
%
TOL
-10
°C
COPcyc
WTOL
65
°C
Psup
0.1
kW
Type of energy input
Electric
Rated airflow (air-water)
m3/h
Nominal heating medium flow
m3/h
Sound power level, indoors/outdoors
LWA
42 / -
dB
Annual energy consumption
QHE
2,875
kWh
Water heating energy efficiency
ƞwh
Daily energy consumption
Qelec
7.73
kWh
Daily fuel consumption
Qfuel
kWh
Annual energy consumption
AEC
1,642
kWh
Annual fuel consumption
AFC
GJ
For heat pump combination heater
Declared load profile for water heating
68
ƞs
Declared coefficient of performance for space heating at part load and at
outdoor temperature Tj
Tj = -7 °C
COPd
3.06
Tj = +2 °C
COPd
3.97
Tj = +7 °C
COPd
4.63
Tj = +12 °C
COPd
4.86
Tj = biv
COPd
2.84
Tj = TOL
COPd
2.84
Tj = -15 °C (if TOL < -20 °C)
COPd
-
-10
Cycling interval capacity
Degradation coefficient
Tbiv
Warm
Average (55 °C)
Low (35 °C)
EN-14825 & EN-16147
5,5
kW
Seasonal space heating energy efficiency
Chapter 12 | Technical data
XL
Brine flow brine-water or water-water heat
pumps
0.68
102
m3/h
%
NIBE™ F1255PC
Model
F1255PC 3x400V
Type of heat pump
Air-water
Exhaust-water
Brine-water
Water-water
Low-temperature heat pump
Yes
No
Integrated immersion heater for additional heat
Yes
No
Heat pump combination heater
Yes
No
Climate
Average
Temperature application
Applied standards
Rated heat output
Prated
Cold
Average (55 °C)
Low (35 °C)
EN-14825 & EN-16147
5,5
kW
Seasonal space heating energy efficiency
Declared capacity for space heating at part load and at outdoor temperature
Tj
Tj = -7 °C
Pdh
5.0
kW
Tj = +2 °C
Pdh
3.0
kW
Tj = +7 °C
Pdh
2.0
kW
Tj = +12 °C
Pdh
1.2
kW
Tj = biv
Pdh
5.4
kW
Tj = TOL
Pdh
5.4
kW
Tj = -15 °C (if TOL < -20 °C)
Pdh
kW
Bivalent temperature
°C
Min. outdoor air temperature
0.99
kW
-
Cycling interval efficiency
Max supply temperature
Power consumption in modes other than active mode
Off mode
POFF
0.002
kW
Additional heat
Rated heat output
Thermostat-off mode
PTO
0.007
kW
Standby mode
PSB
0.007
kW
Crankcase heater mode
PCK
0.009
kW
Pcych
Cdh
Other items
Capacity control
Variable
ƞs
150
%
Declared coefficient of performance for space heating at part load and at
outdoor temperature Tj
Tj = -7 °C
COPd
3.06
Tj = +2 °C
COPd
3.97
Tj = +7 °C
COPd
4.63
Tj = +12 °C
COPd
4.86
Tj = biv
COPd
2.84
Tj = TOL
COPd
2.84
Tj = -15 °C (if TOL < -20 °C)
COPd
-
-10
Cycling interval capacity
Degradation coefficient
Tbiv
Warm
TOL
-10
°C
COPcyc
WTOL
65
°C
Psup
0.1
kW
Type of energy input
Electric
m3/h
Rated airflow (air-water)
m3/h
Sound power level, indoors/outdoors
LWA
42 / -
dB
Annual energy consumption
QHE
2,875
kWh
Water heating energy efficiency
ƞwh
Daily energy consumption
Qelec
7.48
kWh
Daily fuel consumption
Qfuel
kWh
Annual energy consumption
AEC
1,642
kWh
Annual fuel consumption
AFC
GJ
For heat pump combination heater
Declared load profile for water heating
NIBE™ F1255PC
XL
Nominal heating medium flow
Brine flow brine-water or water-water heat
pumps
0.68
102
m3/h
%
Chapter 12 | Technical data
69
13 Item register
Item register
A
Accessibility, electrical connection, 19
Accessories, 57
Alarm, 55
Assembly, 7
B
Back button, 34
Brine side, 15
C
Cable lock, 20
Commissioning and adjusting, 29
Filling and venting, 29
Post adjustment and bleeding, 31
Preparations, 29
Start guide, 30
Connecting accessories, 28
Connecting current sensors, 24
Connecting external operating voltage for the control system, 21
Connecting the climate system, 16
Connecting the hot water heater, 16
Connections, 21
Contact for activation of fan speed, 26
Contact for activation of “external adjustment", 26
Contact for activation of “temporary lux", 26
Contact for external tariff blocking, 25
Contact information, 6
Control, 34, 38
Control - Introduction, 34
Control - Menus, 38
Control - Introduction, 34
Display unit, 34
Menu system, 35
Control knob, 34
Controlling ground water pump, 26
Control - Menus, 38
Menu 5 - SERVICE, 40
Cooling mode indication, 26
Cooling section, 13
D
Data for energy efficiency of the system, 67
Delivery and handling, 7
Assembly, 7
Drawing out the cooling module, 7
Installation area, 7
Removing parts of the insulation, 9
Removing the covers, 8
Supplied components, 8
Transport, 7
Diagram, dimensioning compressor speed, 63
Diagram, passive cooling output, 63
Dimensions and pipe connections, 15
Dimensions and setting-out coordinates, 59
Display, 34
Display unit, 34
Back button, 34
Control knob, 34
Display, 34
OK button, 34
Status lamp, 34
Switch, 34
Disturbances in comfort, 55
Alarm, 55
Manage alarm, 55
Troubleshooting, 55
70
Chapter 13 | Item register
Docking alternatives, 16
Extra electric hot water heater, 17
Ground water system, 17
Neutralization vessel, 16
Pool, 18
Two or more climate systems, 18
Under floor heating systems, 17
Ventilation recovery, 17
Draining the climate system, 49
Draining the hot water heater, 49
Drawing out the cooling module, 7, 51
E
Electrical addition - maximum output, 22
Setting max electrical output, 22
Electrical cabinets, 12
Electrical connections, 19
Accessibility, electrical connection, 19
Cable lock, 20
Connecting accessories, 28
Connecting external operating voltage for the control system, 21
Connections, 21
Electrical addition - maximum output, 22
External connection options, 24
General, 19
Load monitor, 24
Miniature circuit-breaker, 19
NIBE Uplink™, 24
Optional connections, 24
Outdoor sensor, 21
Power connection, 21
Removing the cover, base board, 20
Removing the cover, immersion heater circuit board, 20
Removing the hatch, input circuit board, 20
Room sensor, 22
Settings, 22
Standby mode, 23
Temperature limiter, 19
Temperature sensor, external flow line, 22
Emptying the brine system, 50
Energy labelling, 65
Data for energy efficiency of the package, 67
Information sheet, 65–66
Technical documentation, 68–69
External connection options, 24
Contact for activation of fan speed, 26
Contact for activation of “external adjustment", 26
Contact for activation of “temporary lux", 26
Contact for external tariff blocking, 25
Controlling ground water pump, 26
Cooling mode indication, 26
Extra circulation pump, 26
Hot water circulation, 26
NV 10, pressure/level/flow monitor brine, 26
Possible selection for AUX inputs, 25
Possible selection for AUX output (potential free variable relay), 26
Switch for "Smart Grid ready", 25
Switch for external blocking of addition and/or compressor, 25
Switch for external blocking of heating, 26
Switch for external forced control of brine pump, 26
Temperature sensor, cooling/heating, 25
Extra circulation pump, 26
F
Filling and venting, 29
Filling and venting the brine system, 29
Filling and venting the climate system, 29
NIBE™ F1255PC
Filling the hot water heater, 29
Symbol key, 30
Filling and venting the brine system, 29
Filling and venting the climate system, 29
Filling the hot water heater, 29
H
Heating medium side, 16
Connecting the climate system, 16
Helping the circulation pump to start, 50
Help menu, 30, 37
Hot water circulation, 26
Hot water heater, 16
Connecting the hot water heater, 16
I
Important information, 4
Recovery, 4
Safety information, 4
Information sheet, 65
Inspection of the installation, 5
Installation area, 7
M
Manage alarm, 55
Marking, 4
Menu 5 - SERVICE, 40
Menu system, 35
Help menu, 30, 37
Operation, 36
Scroll through the windows, 37
Selecting menu, 36
Selecting options, 36
Setting a value, 36
Use the virtual keyboard, 37
Miniature circuit-breaker, 19
N
NIBE Uplink™, 24
NV 10, pressure/level/flow monitor brine, 26
O
OK button, 34
Operation, 36
Optional connections, 24
Outdoor sensor, 21
P
Pipe connections, 14
Brine side, 15
Dimensions and pipe connections, 15
Docking alternatives, 16
General, 14
Heating medium side, 16
Hot water heater, 16
Pipe dimensions, 15
Symbol key, 14
System diagram, 14
Pipe dimensions, 15
Possible selection for AUX inputs, 25
Possible selection for AUX output (potential free variable relay), 26
Post adjusting the room temperature, 32
Post adjustment and bleeding, 31
Post adjusting the room temperature, 32
Pump adjustment, automatic operation, 31
Pump adjustment, manual operation, 31
Pump capacity diagram, brine side, manual operation, 31
Readjusting, venting, heat medium side, 31–32
Power connection, 21
Preparations, 29
Pump adjustment, automatic operation, 31
Brine side, 31
Heating medium side, 31
NIBE™ F1255PC
Pump adjustment, manual operation, 31
Heating medium side, 31
Pump capacity diagram, brine side, manual operation, 31
R
Readjusting, venting, heat medium side, 31–32
Remove parts of the insulation, 9
Removing the cover, base board, 20
Removing the cover, immersion heater circuit board, 20
Removing the covers, 8
Removing the hatch, input circuit board, 20
Room sensor, 22
S
Safety information, 4
Contact information, 6
Inspection of the installation, 5
Marking, 4
Serial number, 4
Symbols, 4
Scroll through the windows, 37
Selecting menu, 36
Selecting options, 36
Serial number, 4
Service, 49
Service actions, 49
Service actions, 49
Draining the climate system, 49
Draining the hot water heater, 49
Drawing out the cooling module, 51
Emptying the brine system, 50
Helping the circulation pump to start, 50
Standby mode, 49
Temperature sensor data, 51
USB service outlet, 53
Setting a value, 36
Settings, 22
Standby mode, 49
Power in emergency mode, 23
Start guide, 30
Status lamp, 34
Supplied components, 8
Switch, 34
Switch for "Smart Grid ready", 25
Switch for external blocking of addition and/or compressor, 25
Switch for external blocking of heating, 26
Switch for external forced control of brine pump, 26
Symbol key, 14, 30
Symbols, 4
System diagram, 14
T
Technical data, 59
Dimensions and setting-out coordinates, 59
Energy labelling, 65
Data for energy efficiency of the system, 67
Information sheet, 65
Technical documentation, 68
Technical Data, 60
Technical Data, 60
Diagram, dimensioning compressor speed, 63
Diagram, passive cooling output, 63
Working range heat pump, 63
Technical documentation, 68
Temperature limiter, 19
Resetting, 19
Temperature sensor, cooling/heating, 25
Temperature sensor, external flow line, 22
Temperature sensor data, 51
The heat pump design, 10
Component list cooling section, 13
Component list electrical cabinets, 12
Chapter 13 | Item register
71
Component location cooling section, 13
Component location electrical cabinets, 12
Component locations, 10
List of components, 10
Transport, 7
Troubleshooting, 55
U
USB service outlet, 53
Use the virtual keyboard, 37
W
Working range heat pump, 63
72
Chapter 13 | Item register
NIBE™ F1255PC
WS name: Niklas
WS version: a7 (working edition)
Publish date: 2016-06-09 11:47
NIBE AB Sweden
Hannabadsvägen 5
Box 14
SE-285 21 Markaryd
info@nibe.se
www.nibe.eu
331170
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