Nibe F2026 User manual

User manual
LEK
NIBE™ F2026
Air/water heat pump
UHB GB 1244-2
031864

Table of Contents
1 Important information 2
Installation data 2
Safety information 4
Serial number 5
Contact information 6
F2026 - An excellent choice 8
2 The heat pump – the heart of the house 9
Heat pump function 9
Contact with F2026 11
Maintenance of F2026 12
3 Disturbances in comfort 17
Troubleshooting 17
4 Technical data 20
5 Glossary 21
Item register 25
1NIBE™ F2026Table of Contents |

1Important information
Installation data
F2026Product
Serial number
Installation date
Installer
Serial number must always be given
Certification that the installation is carried out according to instructions in
NIBE's installer manual and applicable regulations.
_________________________Signed__________________Date
NIBE™ F2026Chapter 1 | Important information2

Accessories
✔
SetDefault
set-
tings
NameChan-
nel
1Communications ad-
dress
A1
48 °CMax return temperat-
ure
A2
4°CConnection diff. re-
turn temp.
A3
20 minStart interval com-
pressor
A4
0°CBalance temperatureA5
120 minTime delay addition
relay
A6
-20 °CStop temperatureA7
60/50
/45
Min. interval between
defrosting
A8
+1 °CStart defrostingA9
+10 °CStop defrostingA10
7minLongest defrostingA11
3NIBE™ F2026Chapter 1 | Important information

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 appli-
ance.
Rights to make any design or technical modifications are reserved.
©NIBE 2012.
Symbols
NOTE
This symbol indicates danger to machine or person.
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
F2026 is CE marked and fulfils IP24.
The CE marking means that NIBE ensures that the product meets all regula-
tions 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.
IP24 means that the product is secure against penetration by objects with a
diameter larger than or equivalent to 12.5 mm and that the product is pro-
tected against drops from all directions.
NIBE™ F2026Chapter 1 | Important information4

Serial number
The serial number can be found on the product's foot.
LEK
6HULDO QXPEHU
Caution
Always give the product's serial number when reporting a fault.
5NIBE™ F2026Chapter 1 | Important information

Contact information
KNV Energietechnik GmbH, Gahberggasse 11, 4861 SchörflingAT
Tel: [phone] Fax: [phone] E-mail: [email protected]
www.knv.at
NIBE Wärmetechnik AG, Winterthurerstrasse 710, CH-8247 FlurlingenCH
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.ch
Druzstevni zavody Drazice s.r.o, Drazice 69, CZ - 294 71 Benatky nad
Jizerou
CZ
Tel: [phone] Fax: [phone] E-mail: [email protected]
www.nibe.cz
NIBE Systemtechnik GmbH, Am Reiherpfahl 3, 29223 CelleDE
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.de
Vølund Varmeteknik A/S, Member of the Nibe Group, Brogårdsvej 7,
6920 Videbæk
DK
Tel: [phone] Fax: [phone] E-mail: [email protected] www.volund-
vt.dk
NIBE Energy Systems OY, Juurakkotie 3, 01510 VantaaFI
Puh: 09-274 697 0 Fax: [phone] E-mail: [email protected] www.nibe.fi
AIT France, 10 rue des Moines, 67000 HaguenauFR
Tel : [phone] Fax : [phone] E-mail: [email protected] www.nibe.fr
NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way,
Chesterfield S41 9QG
GB
Tel: [phone] Fax: [phone] E-mail: [email protected]
www.nibe.co.uk
NIBE Energietechniek B.V., Postbus 2, NL-4797 ZG WILLEMSTAD (NB)NL
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibenl.nl
ABK AS, Brobekkveien 80, 0582 Oslo, Postadresse: Postboks 64 Vollebekk,
0516 Oslo
NO
Tel. sentralbord: +47 02320 E-mail: [email protected] www.nibeenergysys-
tems.no
NIBE-BIAWAR Sp. z o. o. Aleja Jana Pawła II 57, 15-703 BIAŁYSTOKPL
Tel: [phone] Fax: [phone] E-mail: [email protected]
www.biawar.com.pl
© "EVAN" 17, per. Boynovskiy, Nizhny NovgorodRU
Tel./fax [phone] E-mail: [email protected] www.nibe-evan.ru
NIBE™ F2026Chapter 1 | Important information6

NIBE AB Sweden, Box 14, Hannabadsvägen 5, SE-285 21 MarkarydSE
Tel: [phone] Fax: [phone] E-mail: [email protected]
www.nibe.se
For countries not mention in this list, please contact Nibe Sweden or check www.nibe.eu
for more information.
7NIBE™ F2026Chapter 1 | Important information

F2026 - An excellent choice
F2026 is an air/water heat pump specially developed for the Nordic climate,
which utilises the outside air so there is no need for bore holes or coils in the
ground.
The heat pump is intended for connection to water borne heating systems
and 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 additional heat.
Excellent properties for F2026:
႑Efficient scroll compressor
Efficient scroll compressor that operates at temperatures down to -20 °C.
႑Intelligent control
Integrated intelligent control for optimum control of the heat pump.
F2026 is started by a start signal from another unit (VVM 300 for example)
or thermostat.
႑Fan
With the exception of F2026-6 kW (which only has one fan speed) F2026
has an automatic 2-step capacity control of the fan.
႑Long service life
The material has been chosen for a long service life and is designed to
withstand the Nordic outdoor conditions.
႑Many possibilities
F2026 can also be used together with most electric boilers, oil boilers or
similar.
NIBE™ F2026Chapter 1 | Important information8

2The heat pump – the heart of
the house
Heat pump function
Förångare
Kondensor 80 °C
2 °C-3 °C
5 °C0 °C
55 °C45 °C
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The temperatures are only examples and may vary between different installations and time
of year.
9NIBE™ F2026Chapter 2 | The heat pump – the heart of the house

An air/water heat pump can use the outdoor air to heat a property. The
conversion of the outdoor air's energy to property heating occurs in three
different circuits. In the brine circuit, (1) , free heat energy is retrieved from
the surroundings and transported to the heat pump. In the refrigerant circuit,
(2) , the heat pump increases the retrieved heat's low temperature to a high
temperature. In the heating medium circuit, (3) , the heat is distributed around
the house.
Outdoor air
The outdoor air is sucked into the heat pump.
A
The fan then routes the air to the heat pump’s evaporator. Here, the air releases
the heating energy to the refrigerant and the air's temperature drops. The cold
air is then blown out of the heat pump.
B
Refrigerant circuit
A gas circulates in a closed system in the heat pump, a refrigerant, which also
passes the evaporator. The refrigerant has a very low boiling point. In the evapor-
ator the refrigerant receives the heat energy from the outdoor air and starts to
boil.
C
The gas that is produced during boiling is routed into an electrically powered
compressor. When the gas is compressed, the pressure increases and the gas's
temperature increases considerably, from 5 °C to approx. 80°C.
D
From the compressor, gas is forced into a heat exchanger, condenser, where it
releases heat energy to the heating system in the house, whereupon the gas is
cooled and condenses to a liquid form again.
E
As the pressure is still high, the refrigerant can pass an expansion valve, where
the pressure drops so that the refrigerant returns to its original temperature. The
refrigerant has now completed a full cycle. It is routed to the evaporator again
and the process is repeated.
F
Heat medium circuit
The heat energy that the refrigerant produces in the condenser is retrieved by
the climate system's water, heating medium, which is heated to 55 °C (supply
temperature).
G
The heating medium circulates in a closed system and transports the heated wa-
ter's heating energy to the house water heater and radiators/heating coils.
H
The temperatures are only examples and may vary between different installations and time
of year.
NIBE™ F2026Chapter 2 | The heat pump – the heart of the house10

Contact with F2026
F2026 has an integrated control system that checks and monitors the heat
pump operation. At installation the installer makes the necessary settings of
the control system so that the heat pump will work optimally in your system.
The heat pump is controlled in different ways depending on what your system
looks like. If you have an indoor module, for example VVM 300, or a control
module, for example SMO 10 the heat pump can be controlled from these.
Refer to the relevant manual for further information.
11NIBE™ F2026Chapter 2 | The heat pump – the heart of the house

Maintenance of F2026
Regular checks
When your heat pump is located outdoors some external maintenance is re-
quired.
NOTE
Insufficient oversight can cause serious damage to F2026 which is not covered
by the guarantee.
Checking grilles
Check that the inlet grille is not clogged by leaves, snow or anything else
regularly throughout the year.
Pay extra attention in event of high winds or snowfall that may cause the
grille to be blocked.
LEK
Prevent snow building up and covering the grille on F2026.
LEK
Keep free of snow and/or ice.
NIBE™ F2026Chapter 2 | The heat pump – the heart of the house12

Cleaning the outer casing
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 F2026. Prevent F2026 coming into contact with alkaline cleaning agents.
Condensation drain pan and condensation water pipe
The condensation drain pan and condensation water/drain pipe may require
cleaning from leaves or similar during the year.
Cleaning
1. Use the safety switch to cut the incoming electrical supply.
2. Release the trough using the quick release catches on the left and right
front edges. Keep in position at the rear edge without stretching the
power cable.
3. Clean drain pans and condensation water pipe/drains.
4. Reinstall the trough using the removal method in reverse order (see point
2).
5. Switch on the safety switch again.
In event of long power cuts
In the event of prolonged power failures it is recommended that the part of
the heating system located outdoors is drained. Your installer has fitted a
shutoff and a drain valve to facilitate this. Ask you installer if you are unsure.
Saving tips
Your heat pump installation produces heat and/or hot water. This occurs via
the control settings you made.
Factors that affect the energy consumption are, for example, indoor temper-
ature, hot water consumption, the insulation level of the house and whether
the house has many large window surfaces. The position of the house, e.g.
wind exposure is also an affecting factor.
Also remember:
႑Open the thermostat valves completely (except in the rooms that are to
be kept cooler for various reasons, e.g. bedrooms). The thermostats slow
the flow in the heating system, which the heat pump wants to compensate
13NIBE™ F2026Chapter 2 | The heat pump – the heart of the house

with increased temperatures. It then works harder and consumes more
electrical energy.
႑Reduce or adjust the settings for heating in any external control systems.
Power consumption
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Increasing the indoor temperature one degree increases power consumption
by approx. 5%.
Domestic electricity
In the past it has been calculated that an average Swedish household has an
approximate annual consumption of 5000 kWh domestic electricity/year. In
today's society it is usually between 6000-12.000 kWh/year.
Approx-
imate
annual
con-
sump-
tion
(kWh)
Normal Output (W)Equipment
StandbyOperation
3802200Flat-screen (Operation: 5 h/day, Standby: 19
h/day)
901011Digital box (Operation: 5 h/day, Standby: 19
h/day)
45515DVD (Operation: 2 h/week)
672160TV games console (Operation: 6 h/week)
NIBE™ F2026Chapter 2 | The heat pump – the heart of the house14

Approx-
imate
annual
con-
sump-
tion
(kWh)
Normal Output (W)Equipment
50140Radio/stereo (Operation: 3 h/day)
1202100Computer incl. screen (Operation: 3 h/day,
standby 21 h/day)
175-60Bulb (Operation 8 h/day)
55-20Spot light, Halogen (Operation 8 h/day)
165-100Cooler (Operation: 24 h/day)
380-120Freezer (Operation: 24 h/day)
365-1500Oven, hob (Operation: 40 min/day)
310-3000Oven (Operation: 2 h/week)
730-2000Dishwasher, cold water connection (Operation
1 time/day)
730-2000Washing machine (Operation: 1 time/day)
730-2000Tumble drier (Operation: 1 time/day)
100-1000Vacuum cleaner (Operation: 2 h/week)
50-400Engine block heater (Operation: 1 h/day, 4
months a year)
100-800Passenger compartment heater (Operation: 1
h/day, 4 months a year)
These values are approximate example values.
Example: A family with 2 children live in a house with 1 flat-screen TV, 1 di-
gital box, 1 DVD player, 1 TV games console, 2 computers, 3 stereos, 2 bulbs
in the WC, 2 bulbs in the bathroom, 4 bulbs in the kitchen, 3 bulbs outside,
a washing machine, tumble drier, fridge, freezer, oven, vacuum cleaner, en-
gine block heater = 6240 kWh domestic electricity/year.
Energy meter
Check the accommodation's energy meter regularly, preferably once a month.
This will indicate any changes in power consumption.
Newly built houses usually have twin energy meters, use the difference to
calculate your domestic electricity.
15NIBE™ F2026Chapter 2 | The heat pump – the heart of the house

New builds
Newly built houses undergo a drying out process for a year. The house can
then consume significantly more energy than it would thereafter. After 1-2
years the heating curve should be adjusted again, as well as the heating curve
offset and the building's thermostat valves, because the heating system, as
a rule, requires a lower temperature once the drying process is complete.
NIBE™ F2026Chapter 2 | The heat pump – the heart of the house16

3Disturbances in comfort
Troubleshooting
NOTE
Work behind covers secured by screws may only be carried out by, or under
the supervision of, a qualified installation engineer.
NOTE
As F2026 can be connected to a large number of external units, these should
also be checked.
NOTE
If the operating disturbance cannot be rectified by means of this chapter, an
installation engineer should be called.
NOTE
In the event of action to rectify malfunctions that require work within screwed
hatches the incoming electricity must isolated at the safety switch.
The following tips can be used to rectify comfort disruption:
Basic actions
Start by checking the following possible fault sources:
႑That the heat pump is running or that the supply cable to F2026 is con-
nected.
႑Group and main fuses of the accommodation.
႑The property's earth circuit breaker.
Low hot water temperature or a lack of hot water
This part of the fault-tracing chapter only applies if the heat pump is docked
to the hot water heater.
႑Large hot water consumption.
႑Wait until the hot water has heated up.
17NIBE™ F2026Chapter 3 | Disturbances in comfort

႑Incorrect settings in the NIBE indoor module.
႑See the manual for the indoor module.
Low room temperature
႑Closed thermostats in several rooms.
႑Set the thermostats to max in as many rooms as possible.
႑External switch for changing the room heating activated.
႑Check any external switches.
႑Incorrect settings in the NIBE indoor module.
႑See the manual for the indoor module.
High room temperature
႑External switch for changing the room heating activated.
႑Check any external switches.
႑Incorrect settings in the NIBE indoor module.
႑See the manual for the indoor module.
F2026 is not operational
႑External control equipment has not given the start signal.
႑Check the settings on the control equipment.
႑Fuses have tripped.
႑Replace the fuse or reset the MCB. If the fuse trips again the installation
engineer should be contacted.
႑Cold outdoor air.
႑Wait until the ambient temperature is 2 °C higher than the heat
pump’s set stop value.
႑Tripped high pressure pressostat.
႑Check that the system has been vented correctly. Check the fuses.
Check that the particle filter is not blocked. Check that the circulation
pump is rotating. If the fault remains contact the installation engineer.
႑Tripped low pressure switch.
႑Ensure that the air flow is not blocked. If the fault remains contact
the installation engineer.
႑Ambient temperature is hotter than 35 °C.
႑Wait until the ambient temperature is colder than 33 °C.
႑Time conditions do not permit start.
NIBE™ F2026Chapter 3 | Disturbances in comfort18