Nibe F2025 User manual

INSTALLATION AND MAINTENANCE INSTRUCTIONSMOS GB 1035-3
F2025
031245 F2025
LEK

For Home Owners
General
Safety information 2
System description
Principle of operation 3
Maintenance routines
General 4
For the Installer
General points for the installation engineer
Transport and storage 5
Inspection of the installation 5
Assembly 5
Control 6
Pipe connections
General 7
Pipe coupling heating medium circuit 7
Water volumes 7
Pressure drop, heating medium side 7
Docking
General 8
Abbreviations 8
F2025 docked with VVM 300 (floating condensing) 8
F2025 docked with EVP 270 (fixed condensing) 9
F2025 docked with EVP 500 (fixed condensing) 10
F2025 docked to the oil-fired/pellet boiler together with SMO
10 and water heater (floating condensing) 11
Several F2025 together with SMO 10 and water heater (floating
condensing) 12
F2025 docked with EVC 13 (floating condensing) 13
F2025 docked to an electric/oil boiler (floating condens-
ing) 14
F2025 docked with wood fired boiler and hot water heater
(fixed condensing) 15
Electrical connections
General 17
Connection 17
Charge pump 18
Anti-freeze function 18
External heat cable 18
Outside sensor 18
Thermostat control 19
Additional heat / Downtime 19
Example of addition connection 19
External indication of main alarm 19
Commissioning and adjusting
Preparations 20
Filling and venting the heating medium system 20
Balance temperature 20
Stop temperature 20
Soft-start relay 20
Compressor heater 20
Phase sequence control 20
Start-up and inspection 21
Readjusting, heating medium side 21
Adjustment, charge flow 22
Control
Explanation 24
Channel descriptions 25
Control conditions, cold outdoor air 27
Control conditions defrosting 27
Sensor placement
Temperature sensor data 28
Data for discharge sensor 28
Miscellaneous
Electrical circuit diagram
3x400V 6 kW 29
3x400V 8-10 kW 33
3x400V 14 kW 37
Technical specifications
Component positions 41
Sound pressure levels 43
Dimensions and setting-out coordinates 44
Technical specifications 45
Enclosed kit 47
Accessories 47
Dealing with malfunctions
Checking the status 48
F2025 is not operational 48
Draining, heat medium side 49
1F2025
Table of Contents

General
In order to get the greatest benefit from your heat pump F2025 you should read through the For Home Owners section in this
Installation and Maintenance Instruction.
F2025 is a basic heat pump for heating small houses, apartment blocks and small industrial premises. Outdoor air is used as a
heat source.
F2025 is a Swedish-made quality product offering a long life span and reliable operation.
Safety information
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
Rights to make any design or technical modifications are reserved.
©NIBE 2010.
Serial number* (103), must always be stated in all correspondence with NIBE.
______________
Installation date
Type designation
F2025-____
Installation engineers
Setting
Factory settingChannel
1...........................................Communications addressA1
48 °C...........................................Max return temperatureA2
4°C...........................................Connection diff. return temp.A3
20 min...........................................Start interval compressorA4
0°C...........................................Balance temperatureA5
120 min...........................................Time delay addition relayA6
-20 °C...........................................Stop temperatureA7
see page 26...........................................Min. interval between defrostingA8
1°C...........................................Start defrostingA9
+10 °C...........................................Stop defrostingA10
7 min...........................................Longest defrostingA11
Any changes in the basic settings are noted here.
Datum__________________________ Sign___________________________
*See "Component positions" page 41 for location of the serial number.
F20252
For Home Owners
General

System description
Principle of operation
F2025 is an air/water heat pump, specially designed for the
Nordic climate. F2025 utilises the outside air so there is no
need for bore holes or coils in the ground. F2025 has an
automatic 2-stage capacity control of the fan (does not apply
to F2025-6 kW, which only has one fan speed).
F2025 is designed for **water based heating systems and
can be used together with most electric boilers, oil-fired
boilers or equivalent. The heat pump includes an advanced
control system for optimal control. F2025 is started by a start
signal from another controller or thermostat.
F2025 can also be controlled by a specially designed control-
ler, SMO 10 *. This connects and disconnects the additional
heat and controls switching between room heating and hot
water heating.
Accessories such as extra shunt group and pool control can
be connected if SMO 10 is present.
F2025 can both heat hot water effectively at high outdoor
temperatures and give a high output to the heating system
at low outdoor temperatures.
If the outdoor temperature drops to a level below the stop
temperature all heating must then occur with external addi-
tional heat.
F2025 is manufactured in four sizes: 6, 8, 10 and 14 kW.
The material has been chosen for a long service life and is
designed to withstand the Nordic outdoor conditions.
FIGHTER 2020
VVM 300
AV
AV
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SF
RC
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accessory for F2025*
When docking with F2025, a total water volume, incl.
boiler, radiators, pipes, etc. of at least 20 litres boiler water
per kW output on the heat pump is recommended.
**
The heating medium side and the hot water side must be
fitted with the necessary safety equipment in accordance
with the applicable regulations.
3F2025
For Home Owners
System description

Maintenance routines
General
F2025 is equipped with control and monitoring equipment,
however some exterior maintenance is still necessary.
Make regular checks throughout the year that the inlet grille
is not clogged by leaves, snow or anything else. Check
through the cold part of the year to make sure that there
isn't a build up of snow and/or ice under F2025. The condens-
ation water trough KVT 11 accessory is available for manage-
ment and removal of condensation. Strong wind combined
with heavy snowfall can block the intake and exhaust air
grilles. Make sure that there is no snow on the grilles.
If necessary the outer casing can be cleaned using a damp
cloth. Care must be exercised so that the heat pump is not
scratched when cleaning. Avoid spraying water into the grilles
or the sides so that water penetrates into F2025. Prevent
F2025 coming into contact with alkaline cleaning agents.
!WARNING!
Insufficient maintenance can cause serious damage to
F2025 which is not covered by the guarantee.
LEK
Keep free of snow and/or ice.
LEK
Prevent ice and/or snow building up under F2025.
LEK
Prevent snow building up and covering the grille on F2025.
F20254
For Home Owners
Maintenance routines

General points for the installation engineer
Transport and storage
F2025 should be transported and stored vertically.
Inspection of the installation
Current regulations require the heating installation to be in-
spected before it is commissioned. The inspection must be
carried out by a suitably qualified person and should be
documented. The above applies to closed heating systems.
If the heat pump is replaced, the installation must be inspec-
ted again.
Assembly
F2025 should be installed outdoors on a firm surface,
preferably a concrete foundation with ground stand or wall
mounting. The F2025 should not be positioned next to
sensitive walls, for example, next to a bedroom. Also ensure
that the placement does not inconvenience the neighbours.
Care must be exercised so that the heat pump is not
scratched during installation.
LEK
Do not place F2025 directly on the lawn or other non solid
surface.
Large amounts of condensation water as well as melt water
from defrosting can be produced. Provide good drainage at
the installation area and make sure water cannot run out
onto paths or the like during periods that ice can form. It is
also possible to install the accessory KVT 11, which is a col-
lecting trough for leading off condensation water. Condens-
ation water must be led off to a drain or similar.
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Place F2025 on concrete pillars resting on macadma or
shingle for good drainage. The concrete pillars must be posi-
tioned so that the lower edge of the heat pump is at the
level of the average local snow depth, although a minimum
of 400 mm.
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The distance between F2025 and the house wall must be at
least 350 mm. Clearance above F2025 should be at least one
metre. F2025 must not be placed so that recirculation
of outdoor air can occur. This causes lower output and
impaired efficiency.
350 mm
400 mm
3 m
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5F2025
For the Installer
General points for the installation engineer

Control
F2025 is equipped with an internal electronic controller that
handles all functions necessary for heat pump operations.
Accordingly, defrosting, stop at max/min temperature, con-
nection of the compressor heater as well as enabling the
heater for the drip pan, monitoring of motor protection and
pressure switches are controlled.
The number of starts and the operating time can also be
read.
The integrated controller is set during installation and can
be used during a service.
Under normal operation conditions the home owner does
not need to have access to the controller.
F2025 has an integrated electronic return line sensor that
limits the return temperature.
F2025 can also be switched on/off via signals from other
control equipment or a thermostat. If F2025 is controlled
from the accessory SMO 10 the control is described in the
instructions supplied.
SMO 10 communicates with F2025 which means that set-
tings and measurement values from F2025 can be adjusted
and read off in SMO 10 .
F20256
For the Installer
General points for the installation engineer

Pipe connections
General
Pipe installation must be carried out in accordance with cur-
rent norms and directives.
F2025 operates up to a return temperature of about 50 °C
and an outgoing temperature of about 58 °C from the heat
pump. Because F2025 is not equipped with shut off valves
these must be installed outside the heat pump to facilitate
any future servicing. The return temperature is limited by the
return line sensor and is adjusted on channel A2.
NOTE
The pipe work must be flushed before the heat pump
is connected, so that any contaminants do not damage
the components parts.
Pipe coupling heating medium circuit
F2025 can be connected to the heating system, see the
"Docking" section or one of the system solutions that can
be downloaded from the website www.nibe.eu.
The heat pump must be vented by the upper connection (70,
HM-out) using the venting nipple on the enclosed flexible
hose.
The supplied particle filter (SF) must be installed before the
inlet, i.e. the lower connection (71, HM-in) on F2025. All
outdoor pipes must be thermally insulated with at least
19 mm thick pipe insulation.
The charge pump must be operational, even if F2025
is not running, to prevent damage due to freezing.
The charge pump can also be controlled directly from F2025,
terminal (11), which takes the outdoor temperature into
consideration. Alternatively, the heat pump is connected to
an intermediate circuit with a heat exchanger, pump and
water with anti-freeze (does not apply to docking with
VVM300).
Shutoff (AV) and drain valves (TV) are fitted so that F2025
can be emptied in the event of prolonged power failures.
The supplied flexible hoses act as vibration dampers. The
flexible hoses are fitted so a slight bend is created, thus acting
as vibration damping.
Water volumes
When docking with F2025 a total water volume in the boiler
and accumulator of at least 20 litres boiler water per kW
output on the heat pump is recommended.
Pressure drop, heating medium side
F2025 -6, 8, 10, 14
0
1
2
3
4
5
6
7
8
9
0 0,10 0,20 0,30 0,40 0,50 0,60 0,70
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6 kW 8, 10 kW
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7F2025
For the Installer
Pipe connections

Docking
General
F2025 can be installed in several different ways. The requisite
safety equipment must be installed in accordance with cur-
rent regulations for all docked options.
See www.nibe.eu for more docking options.
When docking with F2025, a total water volume, in the
boiler and accumulator, of at least 20 litres boiler water per
kW output on the heat pump is recommended.
Abbreviations
Shut-off valveAV
Circulation pumpCP1
Included in SMO 10Temperature sensor, flow pipeFG1
Auxiliary relayHR
Charge pumpLP
Included in SMO 10Return temperature sensorRG1
Control valveRV
Included in F2025Particle filterSF
Shunt valveSV
Safety valveSÄV
Drain valveTV
Outside sensorUG
Heating thermostatVT
Hot water sensorVVG
F2025 docked with VVM 300 (floating condensing)
FIGHTER 2020
VVM 300
AV
AV
SÄV
SF
RC
TV
UG
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990 
F2025 -6, -8 and -10 can be connected to VVM 300. F2025
is controlled by VVM 300. F2025 works with floating con-
densing against the heating system and prioritises hot water
charging in VVM 300.
If F2025 cannot meet the heating requirement, additional
heat is shunted in from VVM 300. If the outdoor temperature
drops below the set stop temperature, VVM 300 engages
and takes over heating.
NOTE
To prevent interference, sensor cables and communic-
ation cables must be separated (min 20 cm) from high
voltage cables when cable routing.
F20258
For the Installer
Docking

F2025 docked with EVP 270 (fixed condensing)
FIGHTER 2020
RC
BV
AV
RV
SÄV
TV
SF
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8*
F2025 -6, -8 and -10 can be connected to EVP 270. F2025
works with fixed condensation to EVP 270.
If F2025 cannot meet the heating requirement, additional
heat is shunted in from EVP 270. If the outdoor temperature
drops below the set stop temperature, EVP 270 engages and
takes over heating.
NOTE
To prevent interference, sensor cables and communic-
ation cables must be separated (min 20 cm) from high
voltage cables when cable routing.
9F2025
For the Installer
Docking

F2025 docked with EVP 500 (fixed condensing)
F20XX EVP 500
RC
UG**
SF* LP TV
PG
DG
FG
SV
SÄV2*
SÄV1*
EXP*
BL*
CP*
AV*
AV* BV**
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F2025 -6, -8, -10 and-14 can be connected to EVP 500.
F2025 is controlled by EVP 500. F2025 works with fixed
condensation to EVP 500.
If F2025 cannot meet the heating requirement, additional
heat is shunted in from EVP 500. If the outdoor temperature
drops below the set stop temperature, EVP 500 engages and
takes over heating.
NOTE
To prevent interference, sensor cables and communic-
ation cables must be separated (min 20 cm) from high
voltage cables when cable routing.
F202510
For the Installer
Docking

F2025 docked to the oil-fired/pellet boiler together with SMO 10 and water heater (floating condens-
ing)
VXV1
PG
SMO 10
HR
HR
HR
HR
SF RV
P
FG1 CP1
RG1
SV1
VVG
LP1
UG
SÄV
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SMO 10 controls F2025, oil-fired boiler, circulation pumps,
shunts, etc. F2025 works with floating condensing against
the heating system and prioritises hot water charging via the
three way valve (VXV1).
If F2025 cannot meet the heating requirement, the oil-fired
boiler is started and additional heat is shunted in.
NOTE
To prevent interference, sensor cables and communic-
ation cables must be separated (min 20 cm) from high
voltage cables when cable routing.
11F2025
For the Installer
Docking

Several F2025 together with SMO 10 and water heater (floating condensing)
HR
HR
HR
FIGHTER 2020 VP2
FIGHTER 2020 VP1
SV1 FG1
RG1
SMO 10
CP1
PG
UG
LP2
LP1
VVG
VXV1
P
SÄV
SÄV
SÄV
AV
AV BV
BV
RV
TV
RV
TV
BV
SF
SF
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) +3
SMO 10 controls up to nine F2025 (of which max one for
hot water), immersion heater, circulation pump, shunt, etc.
F2025 works with floating condensing against the heating
system and prioritises hot water charging via three way valve
VXV1. F2025 VP1 produces hot water.
If F2025 cannot meet the heating demand, additional heat
is shunted in from the oil-fired boiler.
When additional heat is engaged, hot water is heated using
the immersion heater in the hot water heater.
NOTE
To prevent interference, sensor cables and communic-
ation cables must be separated (min 20 cm) from high
voltage cables when cable routing.
F202512
For the Installer
Docking

F2025 docked with EVC 13 (floating condensing)
FIGHTER 2020
EVC 13
AV
RV
SF
SÄV
TV
RT 10
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(9& 
F2025 is controlled by a room thermostat. F2025 works with
floating condensing on the return from the heating system.
If F2025 cannot meet the heating requirement the additional
heat is shunted in using the existing control equipment from
EVC 13.
Additional heat can be blocked above the set outdoor tem-
perature by means of the automatic control system in F2025.
The heating medium also circulates through F2025 during
the set stop temperature. Hot water production only takes
place using the existing hot water heater.
The right curve is selected in EVC 13 so that F2025 is not
disturbed.
This option requires accessory RT 10.
NOTE
To prevent interference, sensor cables and communic-
ation cables must be separated (min 20 cm) from high
voltage cables when cable routing.
13F2025
For the Installer
Docking

F2025 docked to an electric/oil boiler (floating condensing)
P
FIGHTER 2020
AV
RV LP SF
SƒV
TV
RT 10
RC
Extern alt
befintlig regler-
utrustning.
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F2025 is controlled by a room thermostat. F2025 works with
floating condensing on the return from the heating system.
If F2025 cannot meet the heating requirement the additional
heat is shunted in using the existing control equipment.
Additional heat can be blocked above the set balance tem-
perature by means of the automatic control system in F2025.
In other cases the heat pump does not collaborate with the
electric/oil fired boiler in the optimum way.
Hot water production only takes place using the existing
electric/oil boiler.
This option requires accessory RT 10.
F202514
For the Installer
Docking

F2025 docked with wood fired boiler and hot water heater (fixed condensing)
FIGHTER 2020
AV
RVSF
SÄV
TV
VT
BV
LP1
UG
RC
Vedpanna
Extern alt
befintlig regler-
utrustning.
VVB / ACK
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F2025 charges the water heater/accumulator tank (VVB/ACK).
When the firewood boiler is in use, the heat pump and im-
mersion heater are disconnected when the temperature rises
on the thermostat (VT) and start again when the temperature
drops.
Self-circulation through the heat pump is prevented by the
check valve (BV).
15F2025
For the Installer
Docking

Electrical connections
NOTE
Electrical installation and service must be carried out
under the supervision of a qualified electrician. Electric-
al installation and wiring must be carried out in accord-
ance with the stipulations in force.
NOTE
The live external control must be taken into considera-
tion when connecting.
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Incoming feed cable is supplied and factory connected to
terminal block -X9. Approx. 1.8 m cable is accessible outside
the heat pump.
F202516
For the Installer
Electrical connections

General
The routing of cables for heavy current should be made out
through the cable glands on the heat pump's left-hand side,
seen from the front (100) and signal cables from the rear
(102).
Connection
႑A heat pump must not be connected without the permis-
sion of the electricity supplier and must be connected
under the supervision of a qualified electrician.
႑If a miniature circuit breaker (MCB) is used this should
have motor characteristic “D” (compressor operation).
For MCB size see "Technical Specifications".
႑F2025 does not include an omnipolar circuit breaker on
the incoming power supply. The heat pump’s supply cable
must be connected to a circuit-breaker with at least a 3
mm breaking gap. When the building is equipped with
an earth-fault breaker the heat pump should be equipped
with a separate one. Incoming supply must be 400 V
3NAC 50Hz via distribution boards with fuses.
႑If an insulation test is to be carried out in the building,
disconnect the heat pump.
႑Connect control signal cable for thermostats to terminal
(30). Cable type: unscreened LiYY, screened LiYCY. Cable
area, at least 0.22 mm² with cable lengths less than 50
m.
႑Alternatively the relevant signal cable is connected from
terminal (44) on the control card (34) to SMO 10/VVM
300/EVP 500.
႑Charge pump for F2025 can be connected to terminal
block (11) or to separate supply.
Note! If F2025 is deenergized and the charge pump
is connected to the terminal block (11) there is a risk
of freezing.
႑A common alarm can be connected to terminal (11).
LEK
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17F2025
For the Installer
Electrical connections

Charge pump
When the charge pump is connected to the terminal block
X11 (11) terminal 3 and 4 the pump is controlled by F2025.
Pump activity is dependent on the status of F2025, heat-
ing/hot water requirement and the outdoor temperature.
Pump exercising is handled by F2025.
Anti-freeze function
At temperatures below +2 °C, the charge pump runs period-
ically, and at temperatures below -20 °C it runs continually.
This function applies on the condition that F2025 is powered.
35
30
25
20
15
10
5
5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25
0
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NOTE
There is a risk of freezing when the charge pump is
connected to terminal block X11 (11) and F2025 is
deenergized.
FIGHTER 2020EXTERNT
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Signal vid larm
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External heat cable
F2025 is equipped with a terminal block for the Condensation
water trough KVT 11 accessory. Max load is 200 W.
Outside sensor
An outdoor sensor (15) is located on the underside of F2025.
F202518
For the Installer
Electrical connections