Nibe F2025 User manual

INSTALLATION AND MAINTENANCE INSTRUCTIONSMOS GB 1035-3
F2025
031245 F2025
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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.
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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.
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Keep free of snow and/or ice.
LEK
Prevent ice and/or snow building up under F2025.
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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.
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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
kPa
Tryckfall
6 kW 8, 10 kW
14 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)
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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