Nibe F1255 Series User guide

Installer manual
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NIBE™ F1255
Ground source heat pump
IHB GB 1335-1
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A detailed explanation of the button functions can be found on page 30.
How to scroll through menus and make different settings is described on page 32.
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The mode for setting the indoor temperature is reached, when in the start mode in the main menu, by pressing
the OK button twice. Read more about the settings on page 34.
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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. Read more about the settings on page 42.
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 62 for instructions.

Table of Contents
1 Important information 2
Safety information 2
2 Delivery and handling 5
Transport 5
Assembly 5
Supplied components 6
Removing the covers 6
Removing parts of the insulation 7
3 The heat pump design 8
General 8
Electrical cabinets 10
Cooling section 11
4 Pipe connections 12
General 12
Dimensions and pipe connections 13
Brine side 13
Heating medium side 14
Hot water heater 14
Docking alternatives 14
5 Electrical connections 17
General 17
Connections 19
Settings 21
Optional connections 22
Connecting accessories 25
6 Commissioning and adjusting 26
Preparations 26
Filling and venting 26
Start guide 27
Post adjustment and venting 28
7 Control - Introduction 30
Display unit 30
Menu system 31
8 Control - Menus 34
Menu 1 - INDOOR CLIMATE 34
Menu 2 - HOT WATER 42
Menu 3 - INFO 44
Menu 4 - HEAT PUMP 45
Menu 5 - SERVICE 50
9 Service 56
Service actions 56
10 Disturbances in comfort 62
Info-menu 62
Manage alarm 62
Troubleshooting 62
11 Accessories 64
12 Technical data 66
Dimensions and setting-out coordinates 66
Technical specifications 67
Electrical circuit diagram 70
Item register 76
1Table of Contents |NIBE™ F1255

Safety information
This manual describes installation and service proced-
ures for implementation by specialists.
This appliance can be used by children
aged from 8 years and above and per-
sons 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. Chil-
dren shall not play with the appliance.
Cleaning and user maintenance shall
not be made by children without super-
vision.
Rights to make any design or technical
modifications are reserved.
©NIBE 2013.
Symbols
NOTE
This symbol indicates danger to machine or
person.
Caution
This symbol indicates important information
about what you should observe when main-
taining your installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
Marking
The CE marking means that NIBE ensures that the
product meets all regulations that are placed on it
based on relevant EU directives. The CE mark is obligat-
ory for most products sold in the EU, regardless where
they are made.
Serial number
The serial number can be found at the bottom right of
the front cover and in the info menu (menu 3.1).
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Caution
Always give the product's serial number (14
digits) when reporting a fault.
Country specific information
Installer manual
This installer manual must be left with the customer.
NIBE™ F1255Chapter 1 | Important information2
1 Important information

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. Fill in the page for information about installation data in the User
manual.
DateSignatureNotesDescription
✔
Brine (page 13)
System flushed
System vented
Antifreeze
Level/Expansion vessel
Particle filter
Safety valve
Shut off valves
Circulation pump setting
Heating medium (page 14)
System flushed
System vented
Expansion vessel
Particle filter
Safety valve
Shut off valves
Circulation pump setting
Electricity (page 17)
Fuses heat pump
Fuses property
Outside sensor
Room sensor
Current sensor
Safety breaker
Earth circuit-breaker
Setting of emergency mode thermostat
Miscellaneous
Guarantee submitted
3Chapter 1 | Important informationNIBE™ F1255

Contact information
KNV Energietechnik GmbH, Gahberggasse 11, 4861 SchörflingAT
Tel: [phone] Fax: [phone] E-mail: [e-mail] www.knv.at
NIBE Wärmetechnik AG, Winterthurerstrasse 710, CH-8247 FlurlingenCH
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibe.ch
Druzstevni zavody Drazice s.r.o, Drazice 69, CZ - 294 71 Benatky nad JizerouCZ
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.cz
NIBE Systemtechnik GmbH, Am Reiherpfahl 3, 29223 CelleDE
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibe.de
Vølund Varmeteknik A/S, Member of the Nibe Group, Brogårdsvej 7, 6920 VidebækDK
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.volundvt.dk
NIBE Energy Systems OY, Juurakkotie 3, 01510 VantaaFI
Puh: 09-274 697 0 Fax: [phone] E-mail: inf[email protected] www.nibe.fi
AIT France, 10 rue des Moines, 67000 HaguenauFR
Tel : [phone] Fax : [phone] E-mail: inf[email protected] www.nibe.fr
NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way, Chesterfield S41 9QGGB
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibe.co.uk
NIBE Energietechniek B.V., Postbus 2, NL-4797 ZG WILLEMSTAD (NB)NL
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibenl.nl
ABK AS, Brobekkveien 80, 0582 Oslo, Postadresse: Postboks 64 Vollebekk, 0516 OsloNO
Tel. sentralbord: [phone] E-mail: [email protected] www.nibeenergysystems.no
NIBE-BIAWAR Sp. z o. o. Aleja Jana Pawła II 57, 15-703 BIAŁYSTOKPL
Tel: [phone] Fax: [phone] E-mail: [e-mail] www.biawar.com.pl
© "EVAN" 17, per. Boynovskiy, Nizhny NovgorodRU
Tel./fax [phone] E-mail: [email protected] www.nibe-evan.ru
NIBE AB Sweden, Box 14, Hannabadsvägen 5, SE-285 21 MarkarydSE
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibe.se
For countries not mention in this list, please contact Nibe Sweden or check www.nibe.eu for more information.
NIBE™ F1255Chapter 1 | Important information4

Transport
F1255 should be transported and stored vertically in a
dry place. When being moved into a building, F1255
may be leant back 45 °. Note! Can be tail heavy.
TIP
The side panels can be removed for easier in-
stallation in the building.
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Pulling out the cooling module
To simplify transport and service, the heat pump can
be separated by pulling the cooling module out from
the cabinet.
See page 58 for instructions about the separation.
Assembly
႑Position F1255 on a firm base that can take the
weight, preferably on a concrete floor or foundation.
Use the product's adjustable feet to obtain a horizont-
al and stable set-up.
30 - 50 mm
႑The area where F1255 is located must be equipped
with floor drainage.
႑Install with its back to an outside wall, ideally in a
room where noise does not matter, in order to elim-
inate 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.
႑Wherever the unit is located, walls to sound sensitive
rooms should be fitted with sound insulation.
႑Route pipes so they are not fixed to an internal wall
that backs on to a bedroom or living room.
Installation area
Leave a space of 800 mm in front of the product. Ap-
prox 50 mm free space is required in order to open the
side hatches. The hatches do not need to be opened
during service, all service on F1255 can be carried out
from the front. Leave space between the heat pump
and wall behind (and any routing of supply cables and
pipes) to reduce the risk reproduction of any vibration.
(50) (50)
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* A normal installation needs 300 - 400 mm (any side) for connec-
tion equipment, i.e. level vessel, valves and electrical equipment.
5Chapter 2 | Delivery and handlingNIBE™ F1255
2 Delivery and handling

Supplied components
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Room sensorCurrent sensorOutside sensor
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O-ringsSafety valve
(0.3 MPa) (3 bar)
Level vessel
Location
The kit of supplied items is placed in packaging on top
of the heat pump.
Removing the covers
Front cover
1
2
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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
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The side covers can be removed to facilitate the install-
ation.
1. Remove the screws from the upper and lower
edges.
2. Twist the cover slightly outward.
3. Move the cover backwards and slightly to the side.
4. Pull the cover to one side.
5. Pull the cover forwards.
NIBE™ F1255Chapter 2 | Delivery and handling6

Removing parts of the insula-
tion
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.
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B
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2. Grip the handle and pull straight out as illustrated.
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Insulation, immersion heater
NOTE
Electrical installation and service must be car-
ried 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 18.
2. Grip the handle and pull the insulation carefully
towards you as illustrated.
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7Chapter 2 | Delivery and handlingNIBE™ F1255

General
F1255
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BT2
EB1
UB1
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BT6
UB2
QM32
QM33
XL1
XL6 XL7
XL4 XL3 XL2
FR1
PF1
PF3
PF2
QM22
UB3
AA4
W130
QM31
AA4-XJ3
AA4-XJ3
SF1
View from above
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View from behind
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NIBE™ F1255Chapter 3 | The heat pump design8
3 The heat pump design