F1226-6 - Water pump Nibe - Free user manual and instructions

Product Type	Ground Source Heat Pump (brine-water)
Model	NIBE F1226-6
Power Supply	3×400V, 50Hz, 6-8 kW
Rated Heat Output (at 0/35°C)	6.2 kW
Max Supply Temperature	63 °C
Sound Power Level	43 dB(A)
Brine Flow Rate	0.92 m³/h
Heating Medium Flow Rate	0.54 m³/h
Refrigerant	R407C (GWP 1774)
Compressor Type	Scroll compressor
Integrated Immersion Heater	Yes, max 7 kW (switchable to 9 kW)
Control System	Display unit with rotary knob and buttons
Emergency Mode	Yes, via switch, only immersion heater active
Protection Class	IPX1B
CE Marking	Yes
Serial Number Location	Bottom right of front cover, type plate, menu 3.1
Installation Requirements	Isolator switch, earth fault breaker recommended
Maintenance	Filter cleaning, pressure checks, annual service recommended
Spare Parts	Use only NIBE original parts
Environmental Note	Contains fluorinated greenhouse gas R407C; do not release into atmosphere

Frequently Asked Questions - F1226-6 Nibe

How do I temporarily increase the amount of hot water?

Turn the control knob to mark menu 2 (water droplet) and press the OK button twice. This activates a temporary lux mode.

What do the status lamp colors indicate?

Green: normal operation. Yellow: emergency mode. Red: alarm has occurred.

How do I reset the temperature limiter?

Access the temperature limiter (FQ10) behind the front cover. Press the reset button (FQ10-SF2) using a small screwdriver.

How do I set the heating curve?

Go to menu 1.9.1 - curve. Adjust the curve coefficient and offset to achieve even indoor temperature. Refer to the manual for detailed steps.

What is emergency mode and how do I activate it?

Emergency mode switches off the compressor and runs the immersion heater only. Set the switch (SF1) to the '△' position. The status lamp turns yellow and the display goes off.

How do I drain the hot water heater?

Use the siphon principle: either via the drain valve on the cold water pipe or by inserting a hose into the cold water connection. Ensure safety as water may be hot.

What should I do if the heat pump displays an alarm?

Turn the control knob to view the alarm details. Press 'info/action' for troubleshooting tips. Select 'reset alarm' if the issue is resolved, or choose 'aid mode' as a temporary measure.

How do I clean or replace the particle filter?

The particle filter is located on the brine inlet (XL6) and heating medium return. Close shut-off valves, remove the filter, clean or replace, and reinstall. Refer to the service section.

Where is the serial number located?

The serial number can be found at the bottom right of the front cover, on the type plate (PZ1), and in the info menu (menu 3.1). It is 14 digits long.

What refrigerant does the heat pump use and what are the environmental precautions?

The unit uses R407C, a fluorinated greenhouse gas with GWP 1774. Do not release into the atmosphere. Dispose of the product at a special waste station.

USER MANUAL F1226-6 Nibe

Ground source heat pump NIBE F1226

Front view of a white industrial refrigerator with control panel and digital display (no visible text or symbols)

Simple line drawing of a wrench and plow (no text or symbols)

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 31.

How to scroll through menus and make different settings is described on page 33.

Set the indoor climate

The mode for setting the indoor temperature is accessed by pressing the OK button twice, when in the st mode in the main menu.

Increase hot water volume

To temporarily increase the amount of hot water, rst turn the control knob to mark menu 2 (water droplet) and then press the OK button twice.

Table of Contents

41 Important information

4Safety information

4Symbols

4Marking

5Serial number

5Recovery

5Environmental information

6Inspection of the installation

72 Delivery and handling

7Transport

7Assembly

8Supplied components

8Removing the covers

9Removing parts of the insulation

103 The heat pump design

10General

12Distribution boxes

13Cooling module (EP14)

144 Pipe connections

14General

15Dimensions and pipe connections

16Brine side

16Heating medium side

17Cold and hot water

17 Installation alternative

195 Electrical connections

19General

21Connections

22Settings

24Optional connections

25Connecting accessories

266 Commissioning and adjusting

26Preparations

26Filling and venting

27Start-up an

29Setting the

317 Contrc

31Display uni

32Menu syst

358 Contrc

35Menu 1 -

35Menu 2 -

35Menu 3 -

36Menu 4 -

37Menu 5 -

419 Service

41Service act

4710 Distui

47Manage aka

47Troublesho

5011 Acces.

5112 Techr

51Dimensions

52Electrical d

53Technical s

55Energy lab

59Electrical c

69Item reg

75Contact

1 Important information

Safety information Symbols

This manual describes installation and service procedures for implementation by specialists.

The manual must be left with the customer.

This appliance can be used by children aged from 8 years and above and person 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 modi cations are reserved.

©NIBE 2020.

NOTE

This symbol indicates danger to person or machine.

Caution

This symbol indicates important information about what you should consider when installing or servicing the installation.

TIP

This symbol indicates tips on how to facilitate using the product.

Marking

CE The CE mark is obligatory for most products sold in the EU, regardless of where they are made.

IPX1B Classi cation of enclosure of electro-technical equipment.

Over- Danger to person or machine.

ock- Read the User Manual.

Water may drip from the safety valve's over ow pipe. The entire length of the

ow water pipe must be routed to a suitable drain and be inclined to prevent water pockets, and must also be frost-proof. The over-

ow pipe must be at least the same size as the safety valve. The over ow pipe must be visible and its mouth must be open and not located close to electrical components.

F1226 must be installed via an isolator switch. The cable area has to be dimensioned based on the fuse rating used.

Serial number

The serial number can be found at the bottom right of the front cover, in the info menu (menu 3.1) and on the type plate (PZ1).

Caution

You need the product's (14 digit) serial number for servicing and support.

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.

Environmental information

F-GAS REGULATION (EU) NO. 517/2014

This unit contains a uorinated greenhouse gas that is covered by the Kyoto agreement.

The equipment contains R407C, a uorinated greenhouse gas with a GWP value (Global Warming Potential) of 1,774. Do not release R407C into the atmosphere.

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, II in the page for the installation data in the User Manual.

				DateSignatureNotesD
Brine (page 16)
	System ushed
	System vented
	Antifreeze
	Level/Expansion vessel
	Particle Iter
	Safety valve
	Shut off valves
	Circulation pump setting
Heating medium (page 16)
	System ushed
	System vented
	Expansion vessel
	Particle Iter
	Safety valve
	Shut off valves
	Circulation pump setting
Electricity (page 19)
	Connections
	Main voltage
	Phase voltage
	Fuses heat pump
	Fuses property
	Outside sensor
	Safety breaker
	Earth circuit-breaker
	Setting of emergency mode thermostat

2 Delivery and handling

Transport

F1226 should be transported and stored vertically in dry place. When being moved into a building, F1226 may be leant back 45°.

Ensure that F1226 has not been damaged during port.

Caution

The product can be tail heavy.

• 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.
• Wherever the unit is located, walls to sound sensitive trans-rooms should be tted with sound insulation.
• Route pipes so they are not xed to an internal wall that backs on to a bedroom or living room.

INSTALLATION AREA

Remove the outer panels in order to protect them moving in con ned spaces inside buildings.

Diagram showing a van connected to a lift truck and a cross symbol (no text or labels)

Leven a free space of 800 mm in front of the product. Approx. 50 mm free space is required on each side, to allow the side panels to be removed (see image). All service on F1226 can be carried out from the front, however the right-hand panel may need to be removed. Leave free space between the heat pump and the wall behind (and any routing of supply cables and pipes), to reduce the risk of any vibrations being propagated.

EXTRACTING 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 43 for instructions about the separation.

Assembly

- Place F1226 on a solid foundation indoors that can take the heat pump's weight. Use the product's adjustable feet to obtain a horizontal and stable set-up.

* A normal installation needs 300 - 400 mm (any side) for connection equipment, valves and electrical equipment.

- Because water comes from F1226, the area where the heating pump is located must be equipped with oor drainage.

Supplied componentsRemoving the covers

Outdoor temperat-O-rings ure sensor (BT1) _8x

1 x

Level vessel (CM2)

1 x

Safety valve (FL3)Particle Iter 0.3 MPa (3 bar)1 pcs 1 x

Compression ring couplings

6-8 KW

2 pcs (ø28 x G25)

2 pcs (ø22 x G20) ^2 . Lift the panel out at the bottom edge and up.

12 KW

4 × (ø28 × G25)

FRONT COVER

1. Remove the screws from the lower edge of the front panel.

2. Lift the panel out at the bottom edge and up.

SIDE COVERS

Line drawing of three views of a refrigerator with handle and door, showing internal structure and mounting details (no text or symbols)

LOCATION

The kit of supplied items is placed in packaging on top of the heat pump.

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.

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.

1. Grip the handle and pull straight out as illustrated.

Technical line drawing of an internal server or rack cabinet with a hand inserting a component (no text or symbols visible)

Remove the cover for the junction box according to the description on page 20.

1. Grip the handle and pull the insulation carefully towards you as illustrated.

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.

3 The heat pump design

General

VIEW FROM ABOVE

PIPE CONNECTIONS

Connection, heating medium owXL1

Connection, heating medium returnXL2

Connection, cold waterXL3

Connection, hot waterXL4

Connection, HWC*XL5

Connection, brine inXL6

Connection, brine outXL7

* Only heat pumps with stainless steel vessel.

HVAC COMPONENTS

Venting, coilQM22

Shut-off valve, heating medium owQM31

Shut off valve, heating medium returnQM32

Shut off valve, brine outQM33

Shut-off valve, brine inQM34

Shuttle valve, climate system/water heaterQN10

SENSORS ETC.

BT1 Outdoor temperature sensor*

BT2 Temperature sensors, heating medium ow

BT6 Temperature sensor, hot water charging

BT7 Temperature sensor, hot water top

* Not illustrated

ELECTRICAL COMPONENTS

AA4 Display unit

AA4-XF3 USB socket

AA4-XF4 Service outlet (No function)

AA11 Motor module

EB1 Immersion heater

FR1 Electrical anode ^1

SF1 Switch

W130 Network cable for NIBE Uplink

1 Only heat pump with enamelled vessel.

MISCELLANEOUS

EP14 Cooling module

PZ1 Rating plate

PZ2 Identi cation plate, cooling module

UB1 Cable gland, incoming electricity

UB2 Cable gland

UB3 Cable gland, rear side, sensor

Designations according to standard EN 81346-2.

Distribution boxes

MOTOR MODULE (AA11)

3×400 V 6-8 kW

3x400V 12 kW

ELECTRICAL COMPONENTS

Immersion heater cardAA1

Base cardAA2

Soft-start cardAA10

Motor moduleAA11

Miniature circuit-breakerFC1

Motor cut-outFC10

Temperature limiter/Emergency mode thermostatFQ10

Terminal blockX1

Cooling module (EP14)

6 & 8 kW

12 kW

6 & 8 kW

kW

PIPE CONNECTIONS

Service connection, high pressureXL20

Service connection, low pressureXL21

HVAC COMPONENTS

Circulation pumpGP1

Brine pumpGP2

Drainage, climate systemQM1

Draining, brine sideQM2

SENSORS ETC.

High pressure pressostatBP1

Low pressure pressostatBP2

Temperature sensors, heating medium returnBT3

Temperature sensor, brine inBT10

Temperature sensor, brine outBT11

Temperature sensor, condenser supply lineBT12

Temperature sensor, hot gasBT14

Temperature sensor, uid pipeBT15

BT17 Temperature sensor, suction gas

ELECTRICAL COMPONENTS

AA100 Joint card

Compressor heaterEB10

COOLING COMPONENTS

EP1 Evaporator

EP2 Condenser

GQ10 Compressor

Drying IterHS1

QN1 Expansion valve

4 Pipe connections

General

Pipe installation must be carried out in accordance current norms and directives. F1226 can operate with a return temperature of up to 56 °C and an outgoing temperature from the heat pump of 70 (63 °C with the compressor).

F1226 is not equipped with external shut off valve these must be installed to facilitate any future serv

Caution

Ensure that incoming water is clean. When using a private well, it may be necessary to supplement with an extra water liter.

Caution

Any high points in the climate system, must be equipped with air vents.

NOTE

The pipe systems need to be ushed out before the heat pump is connected so debris cannot damage component parts.

NOTE

Water may drip from the safety valve's over-ow pipe. The entire length of the over ow water pipe must be routed to a suitable drain and be inclined to prevent water pockets, and must also be frost-proof. The over ow pipe must be at least the same size as the safety valve. The over ow pipe must be visible and its mouth must be open and not located close to electrical components.

SYMBOL KEY

	MeaningSymbol
with↑	Venting valve
bingX	Shut-off valve
h only	Non-return valve
	Circulation pump
S, [6XT2]	Expansion vessel
	Auxiliary relay
	Compressor
	Pressure gauge
	Level vessel
	Particle Iter
	Safety valve
	Temperature sensor
	Trim valve
[A4HT3]	Reversing valve/shunt
	Heat exchanger

SYSTEM DIAGRAM

F1226 consists of a heat pump, water heater, electrical module, circulation pumps and a control system. F1226 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.

graph TD
    XL1 --> A["Valve"]
    XL6 --> A
    XL4 --> A
    XL3 --> A
    XL7 --> A
    XL2 --> A
    A --> B["Reactor Unit"]
    B --> C["Pressure Gauge"]
    B --> D["Flow Control Valve"]
    B --> E["Control Valve"]
    B --> F["Reactor Structure"]
    F --> G["Outlet"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333

Connection, heating medium owXL1

Connection, heating medium returnXL2

Connection, cold waterXL3

Connection, hot waterXL4

Connection, brine inXL6

XL7 Connection, brine out

Dimensions and pipe Electrical 1226 Suits connections

PIPE DIMENSIONS

Connection	(kW)	6-8	12
(XL6)/(XL7) Brine in/out ext ∅	(mm)	28
(XL1)/(XL2) Heating medium ow/return ext ∅	(mm)	22	28
(XL3)/(XL4) Cold/hot water ∅	(mm)	22

Brine side

COLLECTOR

Caution

The length of the collector hose varies depending on the rock/soil conditions, climate zone I and on the climate system (radiators or underoor heating) and the heating requirement of the building. Each installation must be sized individually.

CONNECTING THE BRINE SIDE

• Insulate all indoor brine pipes against condensation.
- The level vessel must be installed as the highest point in the brine system on the incoming pipe before the brine pump (Alt. 1).

the level vessel cannot be placed at the highest point, an expansion vessel must be used (Alt. 2).

NOTE

Note that condensation may drip from the level vessel. Position the vessel so that this does not harm other equipment.

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 ow of the relevant 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.

- Details of the antifreeze used must be shown on the level vessel.

- Install the enclosed safety valve below the level vessel as illustrated.

Install shut off valves as close to the heat pump as possible.

For several bore holes, the distance between the holes must be determined according to local conditions.

• Fits the enclosed particle liter on the incoming brine.

Ensure the collector hose rises constantly towards heat pump to avoid air pockets. If this is not positive airvents should be used.

TIP

If lling connection KB25/KB32 is used, the enclosed Iterball does not need to be tted.

Because the temperature of the brine system can below 0 °C, it must be protected against freezing to -15 °C. When making the volume calculation, u litres of ready mixed brine per metre of collector (applies when using PEM-hose 40x2.4 PN 6.3) as a value.

down In the case of connection to an open groundwater sys- se 1 tem, an intermediate frost-protected circuit must be hose provided, because of the risk of dirt and freezing in the guide evaporator. This requires an extra heat exchanger.

SIDE CONNECTION

It is possible to angle the brine connections, for connection to the side instead of top connection.

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.

graph LR
    A["Input"] --> B["Control Unit"]
    B --> C["Alt. 1"]
    B --> D["Alt. 2"]
    C --> E["Control Unit"]
    D --> F["Control Unit"]
    E --> G["XL6"]
    F --> H["XL7"]

Heating medium side

CONNECTING THE CLIMATE SYSTEM

A climate system is a system that regulates indoor comfort with the help of the control system in F1226 and for example radiators, under oor heating/cooling, fan convectors etc.

- Install all required safety devices, shut-off valves (as close to the heat pump as possible), and supplied particle liter.

• Install the safety valve as illustrated. Recommend opening pressure is 0.25 MPa (2.5 bar). For inform about max opening pressure, see technical specifications.

- When connecting to a system with thermostats radiators (or under oor heating coils), either a bypass valve must be tted or some of the thermostats be removed to ensure there is sufficient ow.

BUFFER VESSEL nation If the climate system volume is too small for the heat ca- pump output, the radiator system can be supplemented with a buffer vessel, for example NIBE UKV.

graph LR
    A["pass must"] --> B["Device"]
    B --> C["Output"]

graph LR
    XL1["XL1"] --> BusBar
    XL2["XL2"] --> BusBar
    BusBar --> LoadValve
    LoadValve --> BusBar
    BusBar --> LoadMixer
    BusBar --> LoadPump
    BusBar --> LoadSpike
    BusBar --> LoadSpike
    BusBar --> LoadMixer
    BusBar --> LoadPump
    BusBar --> LoadSpike

EXTRA HOT WATER HEATERS

The heat pump should be supplemented with an extra water heater, if a large bath tub or other signi cant consumer of hot water is installed.

Water heater with immersion heater

If it is possible to use a water heater with an immersion heater, connect it as illustrated below.

Cold and hot water

The settings for hot water are made in menu 5.1.1.

CONNECTING COLD AND HOT WATER

Install as follows:

• shut-off valve
• non-return valve
  • pressure relief valve

The safety valve must have a maximum 1.0 MPa (RPO bar) opening pressure and be installed on the incoming domestic water line as shown.

- mixing valve

A mixer valve must also be installed, if the fact setting for hot water is changed. National regulator must be observed.

graph TD
    A["Inlet"] --> B["Valve"]
    C["Outlet"] --> B
    B --> D["Main Tank"]
    style D fill:#ccc,stroke:#333

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 ltration unit or a drilled well. This docking alternative requires the EXC 40 accessory.

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 of the heat exchanger.

graph LR
    XL3 --> A["Process Unit"]
    XL4 --> A
    A --> B["Control Valve"]
    B --> C["Output"]
    style XL3 fill:#f9f,stroke:#333
    style XL4 fill:#f9f,stroke:#333

Installation alternative

F1226 can be installed in several different ways, some of which are shown below.

Further option information is available at nibe.eu and in the respective assembly instructions for the accessories used. See page 50 for a list of the accessories that can be used with F1226.

graph TD
    A["Input"] --> B["Process Unit"]
    B --> C["Output"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333

VENTILATION RECOVERY

UNDERFLOOR HEATING SYSTEM

The installation can be supplemented with the exhaust external circulation pump is dimensioned for the air module NIBE FLM to provide ventilation recovery under poor heating system's demand.

• Pipes and other cold surfaces must be insulated. If the climate system volume is too small for the heat diffusion-proof material to prevent condensation. pump output, the under oor heating system can be
• The brine system must be supplied with a pressure expansion vessel. If there is a level vessel this should be replaced.

graph TD
    A["Chamber"] --> B["Valve"]
    B --> C["Pressure Point P"]
    C --> D["Flow Path"]
    D --> E["Return Line"]
    style A fill:#f9f,stroke:#333
    style E fill:#bbf,stroke:#333

graph LR
    A["Device"] --> B["Processing Unit"]
    B --> C["Server"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333

FREE COOLING

The installation can be supplemented with fan convectors, for example, in order to allow connections for free cooling.

• Pipes and other cold surfaces must be insulated with diffusion-proof material to prevent condensation.
• Where the cooling demand is high, fan convectors with drip trays and drain connection are needed.
• The brine system must be supplied with a pressure expansion vessel. If there is a level vessel this should be replaced.

graph TD
    A["Input Valve"] --> B["Processing Unit"]
    B --> C["Output Test Tube"]
    D["Check Valve"] --> B
    E["Feedback Loop"] --> B

5 Electrical connections

General

All electrical equipment except for the outdoor temperature sensors has been connected at the factory.

• Disconnect the heat pump before insulation testing the house wiring.
• If the building is equipped with an earth-fault b F1226 should be equipped with a separate one.
• If a miniature circuit breaker is used this should have at least motor characteristic "C". See page 52 for fuse size.
• Electrical wiring diagram for the heat pump, see page 59.
• Communication and sensor cables to external connections must not be laid close to high current cables.
• The minimum area of communication and sensor cables to external connections must be 0.5 mm ^2 up to 50 m, for example EKKX or LiYY or equivalent.
• When cable routing in F1226, 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 ""

"⚠ until the boiler has been lled with war

Components in the product could be damag

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

Check the connections, main voltage and phase voltage before the machine is started, to prevent damage to the heat pump electronics.

aMINIATURE CIRCUIT-BREAKER

The heat pump operating circuit and some of its internal components are internally fused by a miniature circuit breaker (FC1).

TEMPERATURE LIMITER

The temperature limiter (FQ10) cuts the power to the electric additional heat if the temperature exceeds 89°C and is reset manually.

Resetting

The temperature limiter (FQ10) is accessed behind the front cover. Reset the temperature limiter by pressing the button (FQ10-SF2) using a small screwdriver.

MOTOR PROTECTION BREAKER /MINIATUREACCESSIBILITY, ELECTRICAL CONNECTION CIRCUIT BREAKER The plastic cap of the electrical boxes is opened u

The plastic cap of the electrical boxes is opened using

Motor protection breaker (AA11-FC10) / miniature circuit crewdriver.

breaker (AA11-FC1) cuts the power to the compressor

if the current is too high. It is located behind the cover and is reset manually.

NOTE

The cover for the terminal block for soft inputs is opened without a tool.

Caution

Check the miniature circuit-breaker, temperat-R ure limiter and motor protection breaker. They may have tripped during transportation.

1. Push the catch down.
2. Angle out the cover and remove it.

Removing the cover, immersion heater circuit board

1. Insert the screwdriver (A) and pry the catch carefully downwards (B).
2. Angle out the cover and remove it.

Removing the cover, base board

Caution

To remove the cover for the base board, cover for the terminal block for soft inputs rst be removed.

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.

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.

POWER CONNECTION

F1226 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.

Connection 3x400V

NOTE

F1226 contains scroll compressor, which means that it is important that electrical connections are made with the correct phase sequence. With the incorrect phase sequence, the compressor does not start and an alarm displayed.

If a separate supply to the compressor and electric heater is wanted, see section "External blocking of functions" on page 25.

TARIFF CONTROL

If the voltage to the immersion heater and/or the fom-conduit is used it must be sealed to prevent condens-pressor disappears during a certain period, there motion in the sensor capsule.

also be blocking via the AUX-input, see "Connection options - Possible selection for AUX inputs" page. 25

CONNECTING EXTERNAL OPERATING VOLTAGE FOR THE CONTROL SYSTEM

NOTE

Mark up any junction boxes with warnings for external voltage.

If you wish to connect external operating voltage for the control system to F1226 on the immersion heater circuit board (AA1) the edge connector at AA1:X2 must be moved to AA1:X9 (as illustrated).

Operating voltage (1x230V \~ 50Hz) is connected to AA1:X11 (as illustrated).

1x230V+N+PE operating voltage

CONNECTING SENSORS

Connect the sensor(s) to terminal block X1 according to the instructions below.

Outside sensor

Install the outdoor temperature sensor (BT1) in the shade on a wall facing north for north-west, so it is unaffected by the morning sun for example.

Connect the sensor to terminal block X1:1 and X1:2.

graph TD
    A["External"] --> B["F1226"]
    C["BT1"] --> B
    B --> D["X1"]
    D --> E["Grid 1-5"]
    D --> F["Grid 5-3"]
    D --> G["Grid 4-2"]
    D --> H["Grid 3-1"]

Settings

ELECTRICAL ADDITION - MAXIMUM OUTPUT

The electric additional heat may be restricted depending on the selected country.

On delivery, the immersion heater is connected for a maximum of 7 kW (switchable to 9 kW).

The immersion heater's output is split into seven steps (four steps if the immersion heater is switched to maximum 9 kW), according to the table below.

Setting max electrical output

Setting maximum output in the electric additional heat is done in menu 5.1.12.

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.

Switching to maximum electrical output

If more than the maximum output (7 kW) for the sion heater connected on delivery is needed, the pump can be switched to maximum 9 kW.

Move the white cable from terminal block X7:23 terminal block X3:13 (the seal on the terminal block be broken) on the immersion heater card (AA1).

3x400V V (maximum electrical output, con upon delivery 7 kW)

Max electric al addition (kW)	Max phase current L1(A)	Max phase current L2(A)	Max phase current L3(A)
0	-	-	-
			4.3—1
			-8.7—2
			4.38.7—3
			8.78.7—4
			13.08.7—5
			8.78.78.7
			13.08.78.7

3x400V (maximum electrical output, switched 9 kW)

Max electric al addition (kW)	Max phase current L1(A)	Max phase current L2(A)	Max phase current L3(A)
0	-	-	-
			-8.7-2
			8.78.7-4
			8.78.78.76
			15.615.68.79

EMERGENCY MODE

When the heat pump is set to emergency mode is set ⬆ only the most necessary functions are ated.

- The compressor is off and heating is managed immersion heater.

• Hot water is not produced.

NOTE

The switch (SF1) must not be moved to "" or "Δ until F1226 has been lled with water. Components in the product can be damaged.

Power in emergency mode

The immersion heater's output in emergency mode is set with the dipswitch (S2) on the immersion heater circuit board (AA1) according to the table below. Factory setting is 6 kW.

When installing according to current building regulations (BBR) the immersion heater's power in emergency inner-mode must be set to the maximum permitted electrical output.

3x400V (maximum electrical output, connected upon delivery 7 kW)

kW	1	2	3	4	5	6
eected	off	off	off	off	off	on
2	off	off	on	off	off	off
3	off	off	on	off	off	on
4	off	off	on	off	on	off
5	on	off	on	off	off	on
6	on	off	on	off	on	off
7	on	off	on	off	on	on

3x400V (maximum electrical output, switched to 9 kW)

kW	1	2	3	4	5	6
2	off	off	off	off	on	off
4	off	off	on	off	on	off
6 to 9	on	off	on	off	on	off
	on	off	on	on	on	on

3×400V

(SE1 AA1-S2

The image shows the dip-switch (AA1-S2) in the factory setting.

by the Emergency mode thermostat

The supply temperature in emergency mode is set using a thermostat (FQ10). It can be set to 35 (pre-set, for example under oor heating) or 45 °C (for example radiators).

Optional connections

EXTERNAL CONNECTION OPTIONS

F1226 has software-controlled AUX inputs for connecting external switch function (contact has to be poten free) or sensor.

Go into menu 5.4 "soft in/outputs" on the display to lect to which AUX connection each function connects

For certain functions, accessories may be required.

TIP

Some of the following functions can also be activated via menu settings.

Selectable inputs

Selectable inputs on terminal block (X1) for these tions are:

X1:3-4AUX1

X1:5-6AUX2

The example above uses the inputs AUX1 (X1:3-4) and AUX2 (X1:5-6) on terminal block (X1).

Possible selection for AUX inputs

Temperature sensor

Temperature sensor can be connected to F1226.

Available options are:

• room sensor (RTS 40)
- external supply line (BT25) (control of temperature the heating system)

Monitor

Available options are:

• alarm from external units. The alarm is connected to the control, which means that the malfunction is presented as an information message in the display. Potential-free signal of type NO or NC.
• level (accessory NV10)/, pressure/flow monitor for the to se-brine (NC).
  • pressure switch for climate system (NC).

External activation of functions

An external switch function can be connected to F1226 to activate various functions. The function is activated during the time the switch is closed.

Possible functions that can be activated:

• forced control of brine pump
- hot water comfort mode "temporary lux"
- hot water comfort mode "economy"

- "external adjustment"

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 not activated, the desired change of "temperature" (heating curve offset) is set with the number of steps selected. The value is adjustable between -10 and +10. External adjustment of climate systems 2 to 8 requires accessories.

- climate system 1 to 8

The value for the change is set in menu 1.9.2, "external adjustment".

- activation of one of four fan speeds.

(Can be selected if ventilation accessory is activated.) The following ve options are available:

• 1-4 is normally open (NO)
• 1 is normally closed (NC)

The fan speed is activated during the time the switch is closed. Normal speed is resumed when the switch is opened again.

- +Adjust

Using +Adjust, the installation communicates with the under oor heating's control centre* and adjusts the heating curve and calculated supply temperature according to the under oor 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

Caution

This accessory may require a software update in your F1226. The version can be checked in the "Service info" menu 3.1. Visit nibeuplink.com and click on the "Soft ware" tab to download the latest software to your installation.

NOTE

Blocking entails a risk of freezing.

Caution

In systems with both under oor heating an radiators, NIBE ECS 40/41 should be used for optimum operation.

Functions that can be blocked:

• heating (blocking of heating demand)
- hot water (hot water production). Any hot water circulation (HWC) remains in operation.
- compressor
nd internally controlled additional heat
- tariff blocking (additional heat, compressor, heating and hot water are disconnected)

- SG ready

Caution

This function can only be used in mains r works that support the "SG Ready" standard

"SG Ready" requires two AUX inputs.

Connecting accessories

Instructions for connecting accessories are in the installation instructions provided for the respective accessory. See information at nibe.eu for the list of the accessories that can be used with F1226.

"SG Ready" is a smart form of tariff control where the electricity supplier can affect the indoor and hot water temperatures or simply block the additional heat and/or the 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).

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.

- 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).

— 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 set-table in menu 4.1.5).

(A = SG Ready A and B = SG Ready B)

External blocking of functions

An external switch function can be connected to F1226 for blocking various functions. The switch must be potential-free and a closed switch results in blocking.

6 Commissioning and adjusting

Preparations

1. Check that the switch (SF1) is in position "".
2. Check for water in the hot water heater and system.

Caution

Check the miniature circuit-breaker and the motor protection breakers. They may have tripped during transportation.

NOTE

Do not start F1226 if there is a risk that water in the system has frozen.

Filling and venting

Caution

Insuf cient venting can damage internal components in F1226.

FILLING AND VENTING THE CLIMATE SYSTEM

Filling

1. Open the lling valve (external, not included in product). Fill the coil in the hot water heater a rest of the climate system with water.

2. Open the vent valve (QM22).

3. When the water that exits the vent valve (QM22) not mixed with air, close the valve. After a while pressure starts to rise.

4. Close the lling valve when the correct pressure obtained.

Venting

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

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 ow of water when the vent valve (QM22) is opened.

FILLING THE HOT WATER HEATER

1. Open a hot water tap in the house.
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

When Iling the brine system, mix the water with anti-freeze in an open container. The mixture should be protected against freezing down to about -15°C. The brine is topped up by connecting a Iling pump.

1. Check the brine system for leakage.
2. Connect the lling pump and return line on the brine system's lling connection (accessory).
3. If alternative 1 is used (level vessel), close the valve
   the under the level vessel.
   and the 4. Close the reversing valve in the lling connection.
4. Open the valves on the ller connector.
5. Start the lling pump.
   hile File until liquid enters the return pipe.
6. Close the valves on the ller connector.
7. is Open the reversing valve in the lling connection.
8. If alternative 1 (level vessel) is used, open the valve under the level vessel (CM2).

graph TD
    A["Valve 1"] --> B["Valve 2"]
    B --> C{Close}
    C --> D["Valve 3"]
    D --> E["Valve 4"]
    E --> F["Valve 5"]
    F --> G["Valve 6"]
    G --> H["Valve 7"]
    H --> I["Valve 8"]
    I --> J["Valve 9"]
    J --> K["Valve 10"]
    K --> L["Valve 11"]
    L --> M["Valve 12"]
    M --> N["Valve 13"]
    N --> O["Valve 14"]
    O --> P["Valve 15"]
    P --> Q["Valve 16"]
    Q --> R["Valve 17"]
    R --> S["Valve 18"]
    S --> T["Valve 19"]
    T --> U["Valve 20"]
    U --> V["Valve 21"]
    V --> W["Valve 22"]
    W --> X["Valve 23"]
    X --> Y["Valve 24"]
    Y --> Z["Valve 25"]

Start-up and inspection

START GUIDE

NOTE

There must be water in the climate system before the switch is set to "".

1. Set switch (SF1) on F1226 to position ""

2. Follow the instructions in the display's start guide. Press the OK button to skip between the pages in If the start guide does not start when you start the F1226, start it manually in menu 5.7.

TIP

See page 31 for a more in-depth introduction to the heat pump's control system (operation menus etc.).

Commissioning

The rst time the installation is started a start guide is Option / setting started. The start guide instructions state what needs make settings for the system here. to carried out at the rst start together with a run through of the installation's basic settings.

The start guide ensures that the start-up is carried out correctly and, for this reason, cannot be skipped.

Caution

As long as the start guide is active, no function in the installation will start automatically.

The start guide will appear at each restart of the installation, until it is deselected on the last page.

Operation in the start guide

A. Page
B. Name and menu number

C. Option / setting
D. Help menu

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.

side. Press the OK button to skip between the pages in start the the start guide.

B. Name and menu number

Here, you can see which 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.

Option / setting

Make settings for the system here.

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-

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POST ADJUSTMENT AND VENTING

Pump adjustment

Brine side, manual operation

To set the correct ow in the brine system the speed must be set for the brine pump.

Set the pump speed when the system has come balance (ideally 5 minutes after compressor start).

Adjust the ow so the temperature difference bet brine out (BT11) and brine in (BT10) is between Check these temperatures in menu 3.1 "service in and adjust the brine pump's (GP2) speed until the temperature difference is obtained. A large difference ates a low brine ow and a small difference indi high brine ow.

Read off what speed the brine pump should have the diagrams below.

Available pressure, kPa Electrical output, W
F1226 6 kW

Available pressure, kPa Electrical output, W

F1226 8 kW

Available pressure, kPa Electrical output, W

F1226 12 kW
Available pressure, kPa Electrical output, W

Heating medium side, manual operation To set the correct flow in the climate system the correct speed must be set for the heating medium pump in the different operating conditions.

The ow must have a suitable temperature difference for the operating case (heating operation: 5 - 10 °C, hot water generation: 5 - 9 °C) between supply temperature sensor (BT2) and return line sensor (BT3). Check these temperatures in menu 3.1 "service info" and adjust the heating medium pump (GP1) speed until the temperature difference is attained. A high difference indicates a low heating medium flow and a low difference indicates a high heating medium ow.

Set the speed of the heating medium pump in menu 5.1.11.

Read off what speed the heating medium pump should be from the diagrams below.

Available pressure, kPa Electrical output, W
F1226 6 kW

Available pressure, kPa Electrical output, W

F1226 8 and 12 kW

Available pressure, kPa

Electrical output, W

Readjusting, venting, heat medium side Air is initially released from the hot water and vent when the outdoor temperature drops/increases. A may be necessary. If gurgling sounds can be heard steeper slope means a higher supply temperature at a the heat pump or climate system, the entire system certain outdoor temperature. requires additional venting. Check the pressure in the Supply temperature pressure expansion vessel (CM1) with the pressure gauge (BP5). If the pressure drops, the system should be replenished.

Readjusting, venting, collector side

Level vessel

Check the uid level in the level vessel (CM2). If the uid level has dropped, top up the system.

1. Close the valve under the vessel.

2. Disconnect the connection on top 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.

If the pressure in the system needs to be raised done by closing the valve on the outgoing main when the brine pump (GP2) is in operation and t vessel (CM2) is open, so that liquid is drawn down the vessel.

Expansion vessel

If a pressure expansion vessel (CM3) is used instead of a level vessel, the pressure level is checked with the pressure gauge (BP6). If the pressure drops, the system should be replenished.

Setting the heating curve

In menu Curve, heatir you can view the heating curve for your house. The task of the curve is to give an even indoor temperature, regardless of the outdoor temperature, and thereby energy-of-cient operation. Based on this curve, the F1226 determines the temperature of the water to the climate system (the supply temperature) and thus the indoor temperature.

CURVE COEFFICIENT

The slope of the heating curve indicates 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 at a certain outdoor temperature. Supply temperature

(°C)

The optimum curve slope depends on the climate conditions in your location, whether the house has radiators, fan coils or under oor heating and how well insulated the house is.

The heating curve is set when the heating installation is installed, but may need adjusting later. Normally, the curve will not need further adjustment.

this is

curve OFFSET

An offset of the heating curve means that the supply temperature is changed by the same amount for all outdoor temperatures, e.g. a curve offset of +2 steps increases the supply temperature by 5 °C at all outdoor temperatures.

Supply temperature

SUPPLY TEMPERATURE - MAXIMUM AND MINIMUM VALUES

Because the flow line temperature cannot be calculated higher than the set maximum value or lower than set minimum value the heating curve attens out of these temperatures.

Supply temperature

Caution

With under oor heating systems, the maximum supply temperature is normally set between 35 and 45 °C.

Check the max oor temperature with your oor supplier.

ADJUSTMENT OF CURVE

1. Select curve slope and curve offset.

Caution

If you need to adjust "min. ow line temp." and/or "max flow line temperature", you do this in other menus.

Settings for "min. ow line temp." in menu 1.9.3.

Settings for "max ow line temperature" in menu 5.1.2.

Caution

Curve 0 means that own curve is used.

Settings for own curve are made in menu 1.9.7.

TO READ OFF A HEATING 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.

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 ow temperature.

5. Press the OK or Back button to exit read off mode.

7 Control - Introduction

Display unit

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).

F

SWITCH (SF1)

The switch assumes three positions:

• On ( )
• Standby ⏻)
• Emergency mode △)

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.

A DISPLAY

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.

B STATUS LAMP

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:

- con rm 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 con rmed.

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 nibeuplink.com and click the "Software" tab to download the latest software for your installation.

Menu system

MENU 1 - INDOOR CLIMATE

Setting and scheduling the indoor climate. See information in the help menu or user manual.

MENU 2 - HOT WATER

Setting and scheduling hot water production. See information in the help menu or user manual.

MENU 3 - INFO

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

Setting time, date, language, display, operating mode etc. See information in the help menu or user manual.

MENU 5 - SERVICE

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 37.

graph LR
    A["INDOOR CLIMATE"] --> B["Marked main menu"]
    B --> C["Symbols – sub menus"]
    C --> D["Name – sub menus"]
    D --> E["Symbol – main menu"]
    E --> F["Temp: 11, 0, advanced"]
    F --> G["Status information – sub menus"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#fcf,stroke:#333

OPERATION

To move the cursor, turn the control knob to the left or the right. The marked position is brighter and/or has a light frame.

SELECTING MENU

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.

SELECTING OPTIONS

In an options menu the current selected option is indicated by a green tick.

To select another option:

1. Mark the applicable option. One of the options is pre-selected (white).

1. Press the OK button to confirm the selected option. The selected option has a green tick.

SETTING A VALUE

To set a value:

1. Mark the value you want to set using the control knob.

1. Press the OK button. The background of the value becomes green, which means that you have accessed the setting mode.

1. Turn the control knob to the right to increase the value and to the left to reduce the value.

1. Press the OK button to confirm the value you have set. To change and return to the original value, press the Back button.

SCROLL THROUGH THE WINDOWS

A menu can consist of several windows. Turn the control knob to scroll between the windows.

Scroll through the windows in the start guide

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.

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.

8 Control - Menus

Menu 1 - INDOOR CLIMATE

1.1 - temperature1 - INDOOR CLIMATE

1.9.1.1 - heating curve1.9.1 - curve

1.9.2 - external adjustment
1.9.3 - min. ow line temp.
1.9.4 - room sensor settings
1.9.7 - own curve
1.9.8 - point offset

Menu 2 - HOT WATER

2.1 - temporary lux2 - HOT WATER

2.2 - comfort mode

2.9.1 - periodic increase2.9 - advanced

Menu 3 - INFO

3.1 - service info3 - INFO

3.2 - compressor info

3.3 - add. heat info

3.4 - alarm log

3.5 - indoor temp. log

Menu 4 - HEAT PUMP

4.2 - op. mode4 - HEAT PUMP
4.4 - time & date
4.6 - language

4.9.1 - op. prioritisation4.9 - advanced

4.9.2 - auto mode setting
4.9.3 - degree minute setting
4.9.4 - factory setting user

Menu 5 - SERVICE

OVERVIEW

5.1.1 - hot water settings5.1 - operating settings5 - SERVICE

5.1.2 - max ow line temperature

5.1.3 - max diff ow line temp.

5.1.4 - alarm actions

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

5.2 - system settings

5.4 - soft in/outputs

5.5 - factory setting service

5.6 - forced control

5.7 - start guide

5.8 - quick start

5.10 - change log

5.12 - country

Go to the main menu and hold the Back button in MENU 5.1.1 - HOT WATER SETTINGS

seconds to access the Service menu.

Sub-menus

Menu SERVICE has orange text and is intended for 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.

soft in/outputs Setting software-controlled inputs and outputs on terminal block (X1).

soft in/outputs Setting software-controlled inputs and outputs on terminal block (X2).

factory setting servio Total reset of all settings (including settings available to the user) to default values.

forced contro Forced control of the different components in the heat pump.

start guide Manual start of the start guide which is run the rst time the heat pump is started.

quick start Quick starting the compressor.

NOTE

Incorrect settings in the service menus can damage the heat pump.

Operating settings can be made for the heat pump in the sub menus.

start temp. economy / normal / lux

Setting range: 5 - 70 °C

Factory setting (°C):

ind Copper

			luxurynormaleconomy
			484642F1226-6
			464340F1226-8
			434037F1226-12

Stainless

			luxurynormaleconomy
			484642F1226-6
lud-			464340F1226-8
			434037F1226-12

stop temp. economy / normal / lux

Setting range: 5 - 70 °C

Factory setting (°C):

Copper

			luxurynon
			525046
			504744
			474441

Stainless

			luxurynon
			525046
			504744
			474441

stop temp. per. increase

Setting range: 55 - 70 °C

Factory setting: 55 °C

Here you set the start and stop temperature of water for the different comfort options in menu 2 well as the stop temperature for periodic increase menu 2.9.1.

MENU 5.1.2 - MAX FLOW LINE TEMPERATURE

climate system

Setting range: 20-80 °C

Default value: 60 °C

Set the maximum supply temperature for the climate system here.

Caution

For under oor heating systems, max ow line temperature should normally be set to between 35 and 45°C.

Check the max oor temperature with your oor supplier.

MENU 5.1.3 - MAX DIFF FLOW LINE TEM

max diff compressor

Setting range: 1 - 25 °C

Default value: 10 °C

max diff addition

Setting range: 1 - 24 °C

Default value: 7 °C

Here you set the maximum permitted difference between the calculated and actual supply temperature in the event of compressor or additional heat mode respectively. Max diff. additional heat can never exceed max diff. compressor

max diff compressor

male economy If the current supply temperature exceeds the calculated supply by set value, the degree minute value is set to 12268 The compressor in the heat pump stops if there is 12280 a heating demand.

max diff addition

If "addition" is selected and activated in menu 4.2 and male economy, the current supply temperature exceeds the calculated temperature by the set value, the additional heat is forced to stop.

122612 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.

Caution

If no alarm action is selected, it can result in higher energy consumption in the event of an alarm.

MENU 5.1.7 - BR PMP AL SET.

min. brine out

Setting range: -12 - 15 °C

Default value: -8 °C

^e max brine in

Setting range: 10 - 30 °C

Default value: 30 °C

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.

max brine in

Set the temperature at which the heat pump is to activate the alarm for high temperature in incoming brine.

Setting range: intermittent, continuous, 10 days continuous

Default value: intermittent

Set the operating mode of the brine pump here.

intermittent: The brine pump starts approx. 20 sec before and stops approx. 20 seconds after the compressor.

continuous: Continuous operation.

10 days continuous: Continuous operation for 10 The pump then 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 system.

MENU 5.1.9 - BRINE PUMP SPEED

Setting range: 0 - 100 %

Default values: 50 %

Set the speed of the brine pump here.

MENU 5.1.10 - OP. MOD HEAT MED PU

op. mode

Setting range: auto, intermittent, continuous

Default value: auto

Set the operating mode of the heating medium here.

auto: The heating medium pump runs according current operating mode for F1226.

intermittent: The heating medium pump starts app 20 seconds before, and stops at the same time a compressor.

continuous: Continuous operation.

Set the speed at which the heat pump is to operate in the present operating mode.

"heating" means heating operating mode for the heating medium pump.

"hot water" means hot water operating mode for the cond heating medium pump.

"speed in wait mode" is the heat pump speed when neither compressor nor electric additional heat are active. days.

MÉNU 5.1.12 - INTERNAL ELECTRICAL ADDITION

max connected el. add.

Setting range: 7 / 9

the Default value: 7

set max electrical add.

Setting range: 0 - 9 kW

Factory setting: 6 kW

Here you set the max. electrical output of the internal electrical addition in F1226 and the fuse size for the installation.

MÉNU 5.4 - SOFT IN/OUTPUTS

Here, you can select which input on the terminal block (X1) the external contact function (page 24) must be connected to.

Selectable inputs on terminal block AUX 1-2 (X1:3-6).

MENU 5.5 - FACTORY SETTING SERVICE

All settings can be reset (including settings available to the user) to default values here.

Caution

is, the When resetting, the start guide is displayed the next time the heat pump is restarted.

MENU 5.6 - FORCED CONTROL

You can force control the different components in the heat pump and any connected accessories here.

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.

MENU 5.7 - START GUIDE

When the heat pump is started for the rst time the start guide starts automatically. Start it manually here.

See page 27 for more information about the start guide.

MENU 5.8 - QUICK START

It is possible to start the compressor from here.

Caution

There must be a heating or hot water demand to start the compressor.

NOTE

Do not quick start the compressor too many times over a short period of time, as this could damage the compressor and its surrounding equipment.

MENU 5.10 - CHANGE LOG

Read off any previous changes to the control system here.

The date, time, ID no. (unique to particular setting) and the new set value are shown for every change.

Caution

The change log is saved at restart and remains unchanged after factory setting.

5.12 - COUNTRY

Select here the country in which the product was installed. This allows access to country-speci c settings in your product.

Language settings can be made regardless of this selection.

Caution

This option locks after 24 hours, after restarting the display and during program updating.

9 Service

Service actions

NOTE

Servicing should only be carried out by persons with the necessary expertise.

When replacing components on F1226 only replacement parts from NIBE may be used.

EMERGENCY MODE

NOTE

The switch (SF1) must not be moved to "" or

"△ until F1226 has been lled with water.

Component parts in the product can be damaged.

Emergency mode is used in event of operational inference and in conjunction with service. Hot water not produced in emergency mode.

Emergency mode is activated by setting switch (SI in mode ▲". This means that:

- The status lamp illuminates yellow.

- The display is not lit and the control computer connected.

- The temperature at the immersion heater is controlled by the thermostat (FQ10). It can be set either to 35 or 45 °C.

- The compressor and the brine system are off and 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.

The image shows an example of what a cooling section could look like.

DRAINING THE HOT 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:

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.

3. Air must get into the system for the remaining EMPTYING THE BRINE SYSTEM

to run out. To let in air, slacken off the connection

slightly at the shut-off valve (QM32) that joins heat pump with the cooling module.

In order to service the brine system it may be easier to the drain the system first. This can be done in different ways depending on what needs doing:

When the heating medium side is empty, the required service can be carried out and/or replacement of any components carried out. Draining the brine system in the cooling module

Draining the heating medium system in the heat pump II, for example, the brine pump requires replacing of the cooling module requires servicing, drain the brine system by:

If F1226 requires servicing, drain the heating medium side as follows: Close the shut-off valves to brine system (QM33) and (QM34).

1. Close the shut-off valves outside the heat pump for Connect a hose to the drain valve (QM2), place the heating medium side (return and ow line). other opening of the hose in a container and open
2. Connect a hose to the bleed valve (QM1) and open the valve. A small amount of brine will ow into the valve. Some liquid will run out. container.
3. Air must get into the system for the remaining liquid air must get into the system in order for the remaining brine to run out. To let in air, slacken off the connection slightly at the shut-off valve that joins the heat pump connection slightly at the shut-off valve (QM33) that with the cooling module (XL2).

When the heating medium side is empty, the required service can be carried out. When the brine system is empty, the required service can be carried out.

Draining the entire climate system

If the entire climate system requires draining, do follows:

Draining the brine system in the heat pump

If the heat pump requires servicing, drain the brine system by:

1. Connect a hose to the bleed valve (QM1) and open the shut-off valve outside the heat pump for the valve. Some liquid will run out. the brine system.
2. Air must get into the system for the remaining 2-liquid connect a hose to the drain valve (QM2), place the to run out. To allow air in, unscrew the bleed screw ether opening of the hose in a container and open on the highest radiator in the house. The valve. A small amount of brine will ow into the container.

When the climate system is empty, the required can be carried out.

1. 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 system is empty, the required service can be carried out.

1. Turn off F1226 by setting the switch (SF _0 to " ".
2. Remove the front cover
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 F1226 by setting the switch (SF11) to "" and check that the circulation pump is working.

It is usually easier to start the circulation pump with PULLING OUT THE COOLING MODULE F1226 running, and with the switch (SF1) Iset to "If the circulation pump is helped to start while F1226 is running, be prepared for the screwdriver to jerk when the transport.

pump starts.

The image shows an example of what a circulation pump can look like.

NOTE

Switch off the heat pump and cut the power with the safety switch.

Caution

Remove the front cover according to the description on page 8.

1. Close the shut-off valves (QM31), (QM32), (QM33) and (QM34).

look Drain the compressor module according to the instructions on page 41

TEMPERATURE SENSOR DATA

Temperature (°C) (kOhm)		Voltage (VDC)Re
		3.256351.0-40
		3.240251.6-35
		3.218182.5-30
		3.189133.8-25
		3.15099.22-20
		3.10574.32-15
		3.04756.20-10
		2.97642.89-5
		2.88933.020
		2.78925.615
		2.67320.0210
		2.54115.7715
		2.39912.5120
		2.24510.0025
		2.0838.04530
		1.9166.51435
		1.7525.30640
		1.5874.34845
		1.4263.58350
		1.2782.96855
		1.1362.46760
		1.0072.06865
		0.8911.73970
		0.7851.46975
		0.6911.24680
		0.6071.06185
		0.5330.90890
		0.4690.77995
		0.4140.672100

1. Pull off the lock catches.

2. Disconnect the pipe connection under the shut-off valve (QM31).

1. Remove the two screws.

1. Remove the connections from the base card (AA2) using a screwdriver.

NOTE

At reinstallation, the supplied O-rings must replace the existing ones at the connections to the heat pump (see image).

1. Disconnect the connectors (A) and (B) from the derside of the base card cabinet.
2. Disconnect the connector (C) from the electric tion PCB (AA1) using a screwdriver.
3. Disconnect the switch (D) from the joint board (AA100).
4. Carefully pull out the cooling module.

USB SERVICE OUTLET

The display unit is equipped with a USB socket that can be used to update the software and save logged information in F1226.

TIP

The cooling module is installed in reverse order.

When a USB memory is connected, a new menu choose another le

7) appears in the display.

Menu 7.1 - update rmware

This allows you to update the software in F1226.

NOTE

For the following functions to work the USB date, memory must contain les with software for F1226 from NIBE.

The fact box at the top of the display shows info (always in English) of the most probable update th update software has selected form the USB memo

This information states the product for which the software is intended, the software version and general formation about it. If you want a le other than the selected, the correct le can be selected through "choose another le".

start updating

Select "start updating" if you want to start the update. Setting range: 1 s - 60 min You are asked whether you really want to update the software. Respond "yes" to continue or "no" to undo. Factory setting range: 5 s

If you responded "yes" to the previous question the Here you can choose how current measurement values date starts and you can now follow the progress of the from F1226 should be saved onto a log le on the USB update on the display. When the update is complete memory.

F1226 restarts.

TIP

A software update does not reset the menu ^3 . settings in F1226.

Caution

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).

Select "choose another le" if you do not want to use the suggested software. When you scroll through the les, information about the marked software is shown in a fact box just as before. When you have selected a le with the OK button you will return to the previous page (menu 7.1) where you can choose to start the up-

Menu 7.2 - logging

date Setting range: 1 s - 60 min the Factory setting range: 5 s do.

Here you can choose how current measurement values of the F1226 should be saved onto a log le on the USB memory.

1. Set the desired interval between loggings.
2. Tick "activated".
3. The present values from F1226 are saved in a le in the USB memory at the set interval until "activated" is unticked.

Caution

Untick "activated" before removing the USB memory.

Menu 7.3 - manage settings

Here you can manage (save as or retrieve from) all the menu settings (user and service menus) in F1226 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 F1226.

Caution

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.

Caution

Reset of the menu settings from the USB memory cannot be undone.

10 Disturbances in comfort

In most cases, F1226 notes a malfunction (a malfunction mode “aid mode” is a type of emergency mode. can lead to disruption in comfort) and indicates this means that the heat pump produces heat and/or alarms, and instructions for action, in the display. hot water even though there is some kind of problem.

INFO MENU

This could mean that the heat pump's compressor is not running. In this case, the immersion heater produces

All the heat pump measurement values are gathered at and/or hot water.

under menu 3.1 in the heat pump menu system. Looking through the values in this menu can often simplify and ing the source of the fault. See help menu or user manual for more information about menu 3.1.

Caution

To select aid mode an alarm action must be selected in the menu 5.1.4.

Manage 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:

In the event of an alarm, some kind of malfunction BASIC ACTIONS

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.

• The switch's (SF1) position.

- Group and main fuses of the accommodation.

ALARM

In the event of an alarm with a red status lamp a mal- The property's earth circuit breaker.

function has occurred that the heat pump cannot remedy. Heat pump's earth-fault breaker.

itself. In the display, by turning the control knob and

pressing the OK button, you can see the type of a Miniature circuit breaker for F1226 (FC1).

it is and reset it. You can also choose to set the heat

• heat Temperature limiter for F1226 (FQ10).

pump to aid mode.

info / action Here you can read what the alarm means Correctly set load monitor.

and receive tips on what you can do to correct the

problem that caused the alarm.

LOW HOT WATER TEMPERATURE OR NO HOT WATER

reset alarm In many cases, it is sufficient to select reset

alarm" for the product to revert to normal operation. Mixing valve (if there is one installed) set too low.

a green light comes on after selecting "reset alarm"

the alarm has been remedied. If the red light is still on,

and a menu called "alarm" is visible in the display. The 1226 in incorrect operating mode.

problem causing the alarm still remains.

- Enter menu 4.2. If mode "auto" is selected, select a higher value on "stop additional heat" in menu 4.9.2.

- If mode "manual" is selected, select "addition".

- 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

• Large hot water consumption.

- Wait until the hot water has heated up. Temporarily heating curve" needs adjusting down. increased hot water capacity (temporary lux) can be activated in menu 2.1. - External switch for changing room tem

- Too low hot water setting.

- External switch for changing room temperature activated.

- Enter menu 2.2 and select a higher comfort mode.

Check any external switches.

- Too low or no operating prioritisation of hot water. UNEVEN ROOM TEMPERATURE.

- Enter menu 4.9.1 and increase the time for when incorrectly set heating curve. hot water is to be prioritised. Note that, if the time fine-tune the heating curve in menu 1.9.1 for hot water is increased, the time for heating production is reduced, which can give lower/uneven. Too high set value on "dT at DOT". room temperatures.

LOW ROOM TEMPERATURE

- Enter menu 5.1.14 (ow set. climate system) and reduce the value of "dT at DOT".

- Closed thermostats in several rooms.

- Uneven ow over the radiators.

- Set the thermostats to max, in as many rooms possible. Adjust the room temperature via menu 1.1, instead of choking the thermostats.

-asAdjust the ow distribution between the radiators.

See the "Saving tips" section in the User manual more detailed information about how to best set thermostats.

LOW SYSTEM PRESSURE

for Not enough water in the climate system. the

- Top up the water in the climate system (see page 26).

- Too low set value on the automatic heating control.

- Enter menu 1.1 "temperature" and adjust the off heating curve up. If the room temperature is on low in cold weather the curve slope in menu 1. "heating curve" needs adjusting up.

OMPRESSOR DOES NOT START

yThere is no heating requirement.

9.1 F1226 does not call on heating or hot water.

• F1226 in incorrect operating mode.

- Compressor blocked due to the temperature conditions.

- Enter menu 4.2. If mode "auto" is selected, select higher value on "stop heating" in menu 4.9.2.

^ct Wait until the temperature is within the product's working range.

- If mode "manual" is selected, select "heating". is not enough, select "addition".

If this - Minimum time between compressor starts has not been reached.

- Too low or no operating prioritisation of heat.

- Wait for at least 30 minutes and then check if the

- Enter menu 4.9.1 and increase the time for whencompressor has started.

heating is to be prioritised. Note that if the time for heating is increased the time for hot water produc- Alarm tripped.

tion is reduced, which can give smaller amounts of Follow the display instructions. hot water.

- "Additional heat only" is selected.

- External switch for changing room temperature ated.

activ- Switch to "Auto" or "Manual" in menu 4.1 - Operating mode.

- Check any external switches.

WHINING NOISE IN THE RADIATORS

• Air in the climate system.

- Closed thermostats in the rooms and incorrectly set heating curve.

- Vent the climate system (see page 26).

- Closed valves (QM31), (QM32) to the climate – Open the valves.

system Set the thermostats to max. in as many rooms as possible. Adjust the heating curve via menu 1.1, instead of choking the thermostats.

HIGH ROOM TEMPERATURE

- Too high set value on the automatic heating control.

• Circulation pump speed set too high.
- Enter menu 5.1.11 (pump speed heating medium) and reduce the speed of the circulation pump.

- Uneven ow over the radiators.

- Adjust the ow distribution between the radiators.

GURGLING SOUND

This part of the troubleshooting chapter only applies if the NIBE FLM accessory is installed.

- Not enough water in the water seal.

- Re ll the water seal with water.

- Choked water seal.

- Check and adjust the condensation water hose.

11 Accessories

Detailed information about the accessories and complete ROOM SENSORRTS 40 accessories list available at nibe.eu.

Not all accessories are available on all markets.

EXTRA RELAY CARD EXC 40

This accessory is used to obtain a more even indoor temperature.

Part no. 067 065

Extra relay board required if ground water pump and/or hot water circulation pump is to be connected to F1226.

The extra relay card is installed inside the heat pump Part no. 067 072

or BUFFER VESSEL UKV

A buffer vessel is an accumulator tank that is suitable for connection to a heat pump or another external heat source, and can have several different applications. It can also be used during external control of the heating system.

EXHAUST AIR MODULE NIBE FLM

UKV 100

UKV 200

NIBE FLM is an exhaust air module designed to combine recovery of mechanical exhaust air with ground source heating.

Part no. 088 207

Part no. 080 300

NIBE FLM

Bracket BAU 40

Part no. 067 011

Part no. 067 666

BASE EXTENSION EF 45

This accessory is used to create a larger connection area under F1226.

Part no. 067 152

AUXILIARY RELAY HR 10

Auxiliary relay HR 10 is used to control external 1 to 3 phase loads such as oil burners, immersion heaters and pumps.

Part no 067 309

LEVEL MONITOR NV 10

Level monitor for extended checks of the brine level.

Part no. 089 315

FILLING VALVE KIT KB 25

Valve kit for lling brine in the collector hose. Includes particle liter and insulation.

KB 25 (max. 12 kW)

Part no 089 368

12 Technical data

Dimensions and setting-out coordinates

* This dimension applies at 90° angle on the brine pipes (side connection). The dimension can vary approx. ±100 mm vertically as the brine pipes consist in part of exible pipes.

Electrical data

3X400 V

F1226-6
		400V 3N ~ 50HzRated voltage
Starting current	A_ms	13
Max operating current including 0 kW immersion heater (Recommended fuse rating).	ms	5.3(16)A
Max operating current including 1 - 2 kW immersion heater (Recommended fuse rating).	ms	13(16)A
Max operating current including 3 - 4 kW immersion heater (Recommended fuse rating).	ms	13(16)A
Max operating current including 5 - 6 kW immersion heater (Recommended fuse rating).	ms	17(20)A
Max operating current including 7 kW immersion heater, connected on delivery (Recommended fuse rating).	rating).	17(20)A
Max operating current including 9 kW immersion heater, requires reconnection (Recommended fuse rating).	rating).	20(20)A
		1/2/3/4/5/6/7 (switchable to 2/4/6/9)kWAdditional
		5 - 87WOutput, Brine pump
		4 - 70WOutput, Heating medium
		IPX1BEnclosure class
Equipment Compliant with IEC 61000-3-12
For Connection Design Purposes, Compliant with IEC 61000-3-3 technical requirements
F1226-8
		400V 3N ~ 50HzRated voltage
Starting current	A_ms	16
Max operating current including 0 kW immersion heater (Recommended fuse rating).	ms	6.4(16)A
Max operating current including 1 - 2 kW immersion heater (Recommended fuse rating).	ms	14(16)A
Max operating current including 3 - 4 kW immersion heater (Recommended fuse rating).	ms	14(16)A
Max operating current including 5 - 6 kW immersion heater (Recommended fuse rating).	ms	18(20)A
Max operating current including 7 kW immersion heater, connected on delivery (Recommended fuse rating).	rating).	18(20)A
Max operating current including 9 kW immersion heater, requires reconnection (Recommended fuse rating).	rating).	21(25)A
		1/2/3/4/5/6/7 (switchable to 2/4/6/9)kWAdditional
		5 - 87WOutput, Brine pump
		4 - 70WOutput, Heating medium
		IPX1BEnclosure class
Equipment Compliant with IEC 61000-3-12For Connection Design Purposes, Compliant with IEC 61000-3-3 technical requirements
F1226-12
		400V 3N ~ 50HzRated voltage
Starting current	A_ms	29
Max operating current including 0 kW immersion heater (Recommended fuse rating).	ms	9(16)A
Max operating current including 1 - 2 kW immersion heater (Recommended fuse rating).	ms	18(20)A
Max operating current including 3 - 4 kW immersion heater (Recommended fuse rating).	ms	18(20)A
Max operating current including 5 - 6 kW immersion heater (Recommended fuse rating).	ms	18(20)A
Max operating current including 7 kW immersion heater, connected on delivery (Recommended fuse rating).	rating).	23(25)A
Max operating current including 9 kW immersion heater, requires reconnection (Recommended fuse rating).	rating).	24(25)A
		1/2/3/4/5/6/7 (switchable to 2/4/6/9)kWAdditional
		3 - 180WOutput, Brine pump
		4 - 70WOutput, Heating medium
		IPX1BEnclosure class
Equipment Compliant with IEC 61000-3-12For Connection Design Purposes, Compliant with IEC 61000-3-3 technical requirements

Technical speci cations

3X400 V

				F1226-12F1226-8F1226-6I
Output data according to EN 14511
0/35 nominal
H)				11.527.735 39kWHeating
#				2.681.721 29kWSupplied
				4.304.484 17COP
0/45 nominal
H)				10.887.365 05kWHeating
#				3.142.041 65kWSupplied
				3.463.623 26COP
SCOP according to EN 14825
design)				139 / 97 / 6kWRated
				4.6 / 3.64.8 / 3.84.5 / 3
				4.5 / 3.54.7 / 3.74.4 / 3
Energy rating, average climate
The product's room heating ef ciency class 35 °C / 55 °C1		A++ / A++	A+++ / A++	A++ / A++
The system's room heating ef ciency class 35 °C / 55 °C2		A++ / A++	A+++ / A++	A++ / A++
Ef ciency class hot water heating / declared tap pro le3		A / XL	A / XL	A / XL
Noise
Sound power level (LWA)EN 12102 at 0/35	dB(A)	42	43	44
Sound pressure level (IA) calculated values according to EN ISO 11203 at 0/35 and 1 m range	dB(A)	27	24	29
Refrigerant circuit
Type of refrigerant		R407C
GWP refrigerant		1,774
Fill amount	kg	0.85	1.1	1.2
2 equivalent				ton2031.951 51
Cut-out value pressure switch HP / LP	MPa	2.9 (29 bar) / 0.15 (1.5 bar)
Brine circuit
Min/max system pressure brine	MPa	0.05 (0.5 bar) / 0.45 (4.5 bar)
Min ow				l/s 0.430.300 22
Nominal ow				l/s 0.640.420 30
Max external avail. press at nom ow	kPa	49	39	57
Min/Max incoming Brine temp	°C	see diagram
Min. outgoing brine temp.	°C	-10
Heating medium circuit
Min/Max system pressure heating medium	MPa	0.05 (0.5 bar) / 0.45 (4.5 bar)
Min ow				l/s 0.180.120 09
Nominal ow				l/s 0.250.160 13
Max external avail. press at nom ow	kPa	53	47	57
Min/max HM-temp	°C	see diagram
Pipe connections
Brine ext diam. CU pipe	mm	28	28	28
Heating medium ext diam. CU pipes	mm	22	22	28
Hot water connection external diam	mm	22
Cold water connection external diam	mm	22
Hot water and heating section
Volume water heater (Cu / Rf4/ E)	l	178 / 176 / -
Max pressure in water heater	MPa	1.0 (10 bar)
Hot water heating capacity (comfort mode Normal) According to EN16147
Amount of hot water (40 °C)	l	240	235	230
COPDHW (load pro le XL)		2.8	2.8	2.8
Dimensions and weight
Width x Depth x Height	mm	600 x 620 x 1,800
Ceiling height5	mm	1,950
Weight complete heat pump (Cu / Rf / E)4	kg	225 / 205 / -	235 / 215 / -	255 / 235 / -
Weight only cooling module	kg	100	105	126
		Lead in brass componentsSubstances according
Part number, 3x400 V (Cu / Rf / E)		065 581 /065 583 / -	065 582 /065 584 / -	065 227 /065 230 / -

1 Scale for the product's ef ciency class room heating: A+++ to D.
2 Scale for the system's efficiency class room heating: A+++ to G. Reported efficiency for the system takes the product's temperature regulator into account.
3 Scale for ef ciency class hot water: A+ to F.
4 Cu: copper, Rf: stainless steel, E: enamel.
5 With feet removed, the height is approx. 1,930 mm.

WORKING RANGE HEAT PUMP, COMPRESSOR OPERATION

The compressor provides a supply temperature up to 63 °C at 0 °C incoming brine temperature.

12 kW 3x400V

Temperature, °C

6 - 8 kW 3x400V

Temperature, °C

Energy labelling

INFORMATION SHEET

		NIBE ABSupplier
				F1226-12 3x400VF1226-8 3x400VF12
				35 / 5535 / 5535 / 55°CTe
Declared load pro le for water heating				XLXLXL
Seasonal space heating energy ef ciency class, average climate				A++ / A++A+++ / A++A++
Water heating energy efficiency class, average climate		A	A	A
designh, average rated heat output (P)			kW 7 / 6	139 / 9
Annual energy consumption space heating, average climate	kWh	3,102 / 3,757	3,978 / 4,748	5,986 / 7,628
Annual energy consumption water heating, average climate	kWh	1838	1794	1876
Seasonal space heating energy ef ciency, average climate	%	168 / 128	179 / 140	171 / 133
Water heating energy ef ciency, average climate	%	91	93	89
Sound power level LWA indoors	dB	43	43	45
designh, cold climate rated heat output (P)			kW 7 / 6	139 / 9
designh, warm climate rated heat output (P)			kW 7 / 6	139 / 9
Annual energy consumption space heating, cold climate	kWh	3,609 / 4,364	4,630 / 5,695	6,946 / 8,874
Annual energy consumption water heating, cold climate	kWh	1838	1794	1876
Annual energy consumption space heating, warm climate	kWh	2,029 / 2,470	2,592 / 3,167	3,923 / 4,972
Annual energy consumption water heating, warm climate	kWh	1838	1794	1876
Seasonal space heating energy efficiency, cold climate	%	172 / 132	184 / 144	177 / 136
Water heating energy ef ciency, cold climate	%	91	93	89
Seasonal space heating energy ef ciency, warm climate	%	166 / 126	178 / 137	169 / 132
Water heating energy ef ciency, warm climate	%	91	93	89
Sound power level LWA outdoors	dB	-	-	-

DATA FOR ENERGY EFFICIENCY OF THE PACKAGE

				F1226-12 3x400VF1226-8 3x400VF12
				35 / 5535 / 5535 / 55°CTe
Controller, class		III
Controller, contribution to ef ciency	%	1.5
Seasonal space heating energy ef ciency of the package, average climate	%	169/130	180/141	173/134
Seasonal space heating energy ef ciency class of the package, average climate		A++/A++	A+++/A++	A++/A++
Seasonal space heating energy ef ciency of the package, cold climate	%	174/134	185/146	178/138
Seasonal space heating energy ef ciency of the package, warm climate	%	167/128	179/139	171/133

The reported ef ciency of the package also takes the controller into account. If an external supplementary boiler or solar heating is added to the package, the overall ef ciency of the package should be recalculated.

TECHNICAL DOCUMENTATION

F1226-6 3x400VModel

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 Cold Warm
Temperature application		Average (55 °C) Low (35 °C)EN-14825 & EN-16147Applied standards
		Seasonal space heating energy ef ciencykW6,2Prated Rated heat% 12 output
Declared capacity for space heating at part load and at outdoor temperature Tj		Templared coefficient of performance for space heating at part load and at out temperature Tj = -7 °C
		Tj = +2 °CTj = +7 °CTj = +12 °CTj = bivTj = TOL				-2.91COPdTj = PdH
		Tj = +2 °CTj = +7 °CTj = +12 °CTj = bivTj = TOL				PdH 8.44005PdTj = +2PdH 8.79005PdTj = +7PdH 4.17005PdTj = +1;Pdh 3.06005PdTj = bivPdh 2.70005PdTj = TO
Tj = -15 °C (if TOL < -20 °C)	Pdh	kW	Tj = -15 °C (if TOL < -20 °C)	COPd	-
Bivalent temperature	Tbiv	-5	°C	Min. outdoor air temperature	TOL	-10	°C
Cycling interval capacity	Pcych	kW	Cycling interval ef ciency	COPcyc	-
Degradation coef client	Cdh	1.00	-	Max supply temperature	WTOL	63	°C
Power consumption in modes other than active mode				Additional heat
Off mode	POFF	0.003	kW	Rated heat output	Psup	1.3	kW
Thermostat-off mode	TO	0P	kW
Standby mode	PSB	0.007	kW	Type of energy input	Electric
Crankcase heater mode	PCK	0.014	kW
Other items
Capacity control		Fixed		Rated air ow (air-water)		m3/h
Sound power level, indoors/outdoors	LWA	43/-	dB	Nominal heating medium ow		0.54	m3/h
Annual energy consumption	QHE	3,757	kWh	Brine flow brine-water or water-water heat pumps		0.92	m3/h
For heat pump combination heater
Declared load pro le for water heating		XL		Water heating energy ef ciency	_wh	91	%
Daily energy consumption	Qec	8.37	kWh	Daily fuel consumption	Qfuel		kWh
Annual energy consumption	AEC	1,838	kWh	Annual fuel consumption	AFC		GJ
Contact information	NIBE Energy Systems – Box 14 – Hannabadsvägen 5 – 285 21 Markaryd – Sweden
Integrated immersion heater for additional heat		Yes No
Heat pump combination heater		Yes No
Climate		Average Cold Warm
Temperature application		Average (55 °C) Low (35 °C)EN-14825 & EN-16147Applied standards
				Seasonal space heating energy ef ciencykW8,50Prated Rated heat 140input
Declared capacity for space heating at part load and at outdoor temperature Tj				Templared coefficient of performance for space heating at part load and at out temperature Tj
				Tj = -7 °C		-3.18COPdTj = Poh
				Tj = +2 °C		Pdh8.72COPdTj = +2
				Tj = +7 °C		Pdh4.08COPdTj = +7
				Tj = +12 °C		Pdh4.48COPdTj = +12
				Tj = biv		Pdh3.26COPdTj = biv
				Tj = TOL		Pdh2.96COPdTj = TO
Tj = -15 °C (if TOL < -20 °C)	Pdh		kW	Tj = -15 °C (if TOL < -20 °C)	COPd	-
Bivalent temperature	Tbiv	-6	°C	Min. outdoor air temperature	TOL	-10	°C
Cycling interval capacity	Pcych		kW	Cycling interval ef ciency	COPcyc	-
Degradation coef client	Cdh	1.00	-	Max supply temperature	WTOL	63	°C
Power consumption in modes other than active mode				Additional heat
Off mode	POFF	0.003	kW	Rated heat output	Psup	1.5	kW
Thermostat-off mode	PTO	0.001	kW
Standby mode	PSB	0.007	kW	Type of energy input		Electric
Crankcase heater mode	PCK	0.014	kW
Other items
Capacity control		Fixed		Rated air ow (air-water)			m3/h
Sound power level, indoors/outdoors	LWA	43 / -	dB	Nominal heating medium ow		0.77	m3/h
Annual energy consumption	QHE	4,748	kWh	Brine flow brine-water or water-water heat pumps		1.40	m3/h
For heat pump combination heater
Declared load pro le for water heating		XL		Water heating energy ef ciency	wh	93η	%
Daily energy consumption	Qec	8.17	kWh	Daily fuel consumption	Qfuel		kWh
Annual energy consumption	AEC	1,794	kWh	Annual fuel consumption	AFC		GJ
Contact information	NIBE Energy Systems – Box 14 – Hannabadsvägen 5 – 285 21 Markaryd – Sweden
Integrated immersion heater for additional heat		Yes No
Heat pump combination heater		Yes No
Climate		Average Cold Warm
Temperature application		Average (55 °C) Low (35 °C)EN-14825 & EN-16147Applied standards
				Seasonal space heating energy ef ciencykW13,0Prated Rated heat 13 output
Declared capacity for space heating at part load and at outdoor temperature Tj				Templared coefficient of performance for space heating at part load and at out temperature Tj
					Tj = -7 °C	-3.11COPdTj = -7
				Tj = +2 °C		-3.57COPdPdPdh +2
				Tj = +7 °C		-3.87COPdZPdh +7
				Tj = +12 °C		-4.13COPd5Pdh +1:
				Tj = biv		-3.22COPdFdh+ biv
				Tj = TOL		-2.98COPdFdh+ TO
Tj = -15 °C (if TOL < -20 °C)	Pdh		kW	Tj = -15 °C (if TOL < -20 °C)	COPd	-
Bivalent temperature	Tbiv	-5.2	°C	Min. outdoor air temperature	TOL	-10	°C
Cycling interval capacity	Pcych		kW	Cycling interval ef ciency	COPcyc	-
Degradation coef cient	Cdh	0.99	-	Max supply temperature	WTOL	63	°C
Power consumption in modes other than active mode				Additional heat
Off mode	POFF	0.002	kW	Rated heat output	Psup	2.7	kW
Thermostat-off mode	PTO	0.018	kW
Standby mode	PSB	0.007	kW	Type of energy input		Electric
Crankcase heater mode	PCK	0.030	kW
Other items
Capacity control		Fixed		Rated air ow (air-water)			m3/h
Sound power level, indoors/outdoors	LWA	45 / -	dB	Nominal heating medium ow		1.11	m3/h
Annual energy consumption	QHE	7,628	kWh	Brine flow brine-water or water-water heat pumps		2.04	m3/h
For heat pump combination heater
Declared load pro le for water heating		XL		Water heating energy ef ciency	_wh	89	%
Daily energy consumption	Qec	8.54	kWh	Daily fuel consumption	Qfuel		kWh
Annual energy consumption	AEC	1,876	kWh	Annual fuel consumption	AFC		GJ
Contact information	NIBE Energy Systems – Box 14 – Hannabadsvägen 5 – 285 21 Markaryd – Sweden

Electrical circuit diagram

3X400V 6-8 KW

Dimension 400V 3N~50Hz				Material Quality/Specification					Mass (kg)
Revision note				Rev by	Rev Checked by		Rev date YYYY-MM-DD
		Status P	M1N	Designer	Checked by		Date YYYY-MM-DD
	WIRING DIAGRAM F1X26 6-8KW ELSCHEMA F1X26 6-8KW DISPLAY				Plant	Format	New sheet.	Sheet.
					Location	Drawing no Rev 051275 1

Item register

A

Accessibility, electrical connection, 20

Accessories, 50

Alarm, 47

Assembly, 7

B

Back button, 31

Brine side, 16

C

Cable lock, 21

Cold and hot water, 17

Connecting cold and hot water, 17

Commissioning and adjusting, 26

Filling and venting, 26

Post adjustment and bleeding, 28

Preparations, 26

Start guide, 27

Connecting accessories, 25

Connecting external operating voltage for the control system, 22

Connecting the climate system, 16

Connections, 21

Control, 31, 35

Control - Introduction, 31

Control - Menus, 35

Control - Introduction, 31

Display unit, 31

Menu system, 32

Control knob, 31

Control - Menus, 35

Menu 5 - SERVICE, 37

Cooling section, 13

D

Data for energy efficiency of the system, 55

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

Dimensions and pipe connections, 15

Dimensions and setting-out coordinates, 51

Display, 31

Display unit, 31

Back button, 31

Control knob, 31

Display, 31

OK button, 31

Status lamp, 31

Switch, 31

Disturbances in comfort, 47

Alarm, 47

Manage alarm, 47

Troubleshooting, 47

Docking alternatives

Free cooling, 18

Ground water system, 17

Neutralization vessel, 17

Under oor heating systems, 18

Ventilation recovery, 18

Draining the climate system, 41

Draining the hot water heater, 41

Drawing out the cooling module, 7, 43

E

Electrical addition - maximum output, 22

Setting max electrical output, 22

Switching to maximum electrical output, 23

Electrical cabinets, 12

Electrical circuit diagram, 59

Electrical connections, 19

Accessibility, electrical connection, 20

Cable lock, 21

Connecting accessories, 25

Connecting external operating voltage for the control system, 22

Connections, 21

Electrical addition - maximum output, 22

General, 19

Miniature circuit-breaker, 19

Motor cut-out, 20

Optional connections, 24

Outdoor sensor, 22

Power connection, 21

Removing the cover, base board, 21

Removing the cover, immersion heater circuit board, 20

Removing the hatch, input circuit board, 20

Settings, 22

Standby mode, 23

Temperature limiter, 19

Electrical wiring diagram

3x400V 6-8 kW, 59

3×400V 12 kW, 64

Emptying the brine system, 42

Energy labelling, 55

Data for energy efficiency of the package, 55

Information sheet, 55

Technical documentation, 56

External connection options, 24

Possible selection for AUX inputs, 24

F

Filling and venting, 26

Filling and venting the brine system, 26

Filling and venting the climate system, 26

Filling the hot water heater, 26

Filling and venting the brine system, 26

Filling and venting the climate system, 26

Filling the hot water heater, 26

H

Heating medium side, 16

Connecting the climate system, 16

Helping the circulation pump to start, 42

Help menu, 34

|

Important information, 4

Recovery, 5

Information sheet, 55

Inspection of the installation, 6

Installation alternative

Water heater with immersion heater, 17

Installation area, 7

M

Manage alarm, 47

Marking, 4

Menu 5 - SERVICE, 37

Menu system, 32

Help menu, 34

Operation, 33

Scroll through the windows, 34

Selecting menu, 33

Selecting options, 33

Setting a value, 33

Miniature circuit-breaker, 19

Motor cut-out, 20

0

OK button, 31

Operation, 33

Optional connections, 24

Outdoor sensor, 22

P

Pipe connections, 14

Brine side, 16

Cold and hot water

Connecting cold and hot water, 17

Dimensions and pipe connections, 15

General, 14

Heating medium side, 16

Pipe dimensions, 15

Symbol key, 14

System diagram, 15

Pipe dimensions, 15

Possible selection for AUX inputs, 24

Post adjustment and bleeding, 28

Pump adjustment, 28

Pump capacity diagrams, collector side, 28

Readjusting, venting, heat medium side, 29

Power connection, 21

Preparations, 26

Pump adjustment, 28

Heating medium side, 28

Pump capacity diagrams, collector side, 28

R

Readjusting, venting, heat medium side, 29

Remove parts of the insulation, 9

Removing the cover, base board, 21

Removing the cover, immersion heater circuit board, 20

Removing the covers, 8

Removing the hatch, input circuit board, 20

s

Safety information

Inspection of the installation, 6

Marking, 4

Symbols, 4

Scroll through the windows, 34

Selecting menu, 33

Selecting options, 33

Service, 41

Service actions, 41

Service actions, 41

Draining the climate system, 41

Draining the hot water heater, 41

Drawing out the cooling module, 43

Emptying the brine system, 42

Helping the circulation pump to start, 42

Standby mode, 41

Temperature sensor data, 43

USB service outlet, 44

Setting a value, 33

Settings, 22

Standby mode, 41

Power in emergency mode, 23

Start guide, 27

Status lamp, 31

Supplied components, 8

Switch, 31

Symbol key, 14

Symbols, 4

System diagram, 15

T

Technical data, 51

Dimensions and setting-out coordinates, 51

Electrical circuit diagram, 59

Energy labelling, 55

Data for energy ef ciency of the system, 55

Information sheet, 55

Technical documentation, 56

Technical Data, 53

Technical Data, 53

Working range heat pump, 54

Technical documentation, 56

Temperature limiter, 19

Resetting, 19

Temperature sensor data, 43

The heat pump's design

Component list, cooling module, 13

Component location, cooling module, 13

The heat pump design, 10

Component list electrical cabinets, 12

Component location electrical cabinets, 12

Component locations, 10

List of components, 10

Transport, 7

Troubleshooting, 47

U

USB service outlet, 44

W

Working range heat pump, 54

Contact information

DENMARKCZECH REPUBLICAUSTRIA

For countries not mentioned in this list, contact NIBE Sweden or check nibe.eu for more information.

NIBE Energy Systems

Hannabadsvägen 5

Box 14

SE-285 21 Markaryd

[e-mail]

nibe.eu

This manual is a publication from NIBE Energy Systems. All product illustrations, facts data are based on the available information at the time of the publication's approval. NIBE Energy Systems makes reservations for any factual or printing errors in this ma