Nibe F2050 Manuale utente

User manual

Air/water heat pump

NIBE F2050

UHB EN 2220-1

631435

41 Important information

4Installation data

4Symbols

4Serial number

52 Installation function

73 Control of F2050

84 Maintenance of F2050

8Regular checks

8In event of long power cuts

8Silent mode

8Updating the software

95 Disturbances in comfort

9Troubleshooting

11Contact information

3Table of ContentsNIBE F2050

Table of Contents

Installation data

F2050Product

Serial number

Installation date

Installer

Accessories

Serial number must always be given.

Certification that the installation is carried out according to instructions in the accompanying installer manual and applicable regulations.

__________________________________________Signed______________________________Date

Symbols

Explanation of symbols that may be present in this manual.

NOTE

This symbol indicates danger to person or machine.

Caution

This symbol indicates important information about

what you should observe when maintaining your

installation.

TIP

This symbol indicates tips on how to facilitate us-

ing the product.

Serial number

The serial number for F2050 can be found on the side of the

foot.

DATA

Caution

You need the product's (14 digit) serial number for

servicing and support.

NIBE F2050Chapter 1 | Important information4

Important information

An air/water heat pump installation uses the outdoor air to

heat up a home. The conversion of the outdoor air’s energy

into residential heating occurs in three different circuits.

From the outdoor air, (1) , free heat energy is retrieved and

transported to the heat pump. The heat pump increases the

retrieved heat’s low temperature to a high temperature in

the refrigerant circuit, (2) . The heat is distributed around

the building in the heating medium circuit, (3) .

45 ºC

55 ºC

80 ºC 5 ºC

6 ºC

1 ºC

0 ºC

123

Heating medium

Refrigerant

Outdoor air

Compressor

Condenser

Evaporator

Expansion valve

The temperatures are only examples and may vary between different installations and time of year.

5Chapter 2 | Installation functionNIBE F2050

Installation function

Outdoor air

The outdoor air is sucked into the heat pump.

The fan then routes the air to the heat pump’s evaporat-

or. Here, the air releases the heating energy to the refri-

gerant and the air's temperature drops. The cold air is

then blown out of the heat pump.

Refrigerant circuit

A gas circulates in a closed system in the heat pump, a

refrigerant, which also passes the evaporator. The refri-

gerant has a very low boiling point. In the evaporator the

refrigerant receives the heat energy from the outdoor

air and starts to boil.

The gas that is produced during boiling is routed into an

electrically powered compressor. When the gas is com-

pressed, the pressure increases and the gas's temperat-

ure increases considerably, from 0 °C to approx 80 °C.

From the compressor, gas is forced into a heat ex-

changer, condenser, where it releases heat energy to

the indoor module, whereupon the gas is cooled and

condenses to a liquid form again.

As the pressure is still high, the refrigerant can pass an

expansion valve, where the pressure drops so that the

refrigerant returns to its original temperature. The refri-

gerant has now completed a full cycle. It is routed to the

evaporator again and the process is repeated.

Heat medium circuit

The heat energy that the refrigerant produces in the

condenser is retrieved by the indoor module's water, the

heating medium, which is heated to 55 °C (supply tem-

perature).

The heating medium circulates in a closed system and

transports the heated water's heat energy to the house

radiators/heating coils.

The indoor module’s integrated charge coil is placed in

the boiler section. The water in the coil heats up the

surrounding domestic hot water.

NIBE F2050Chapter 2 | Installation function6

F2050 is controlled in different ways depending on your

system. You control the heat pump via your indoor module

(VVM) or control module (SMO).

See the Installer Manual for the indoor module/control

module.

During installation, the installation engineer adjusts the ne-

cessary settings for the heat pump in the indoor module or

control module, so that the heat pump works optimally in

your system.

7Chapter 3 | Control of F2050NIBE F2050

Control of F2050

Regular checks

When your heat pump is located outdoors some external

maintenance is required.

NOTE

Insufficient maintenance can cause serious dam-

age to F2050, which is not covered by the guaran-

tee.

CHECKING GRILLES AND BOTTOM PANEL ON

F2050

Check regularly throughout the year that the grille is not

clogged by leaves, snow or anything else.

You should be particularly vigilant during windy conditions

and/or in the event of snow, as the grille can become

blocked.

Also check that the drain holes in the bottom panel are free

from dirt and leaves.

Regularly check that condensation is routed away correctly

through the condensation pipe. Ask your installer for assist-

ance if required.

Keep free of snow and ice

LEK

Prevent snow building up and covering the grille on F2050.

LEK

Keep free of snow and/or ice.

CLEANING THE OUTER CASING

If necessary the outer casing can be cleaned using a damp

cloth.

Care must be exercised so that the heat pump is not

scratched when cleaning. Avoid spraying water into the

grilles or the sides so that water penetrates into F2050.

Prevent F2050 coming into contact with alkaline cleaning

agents.

In event of long power cuts

In the event of prolonged power failures it is recommended

that the part of the heating system located outdoors is

drained. Your installer has installed a shut off and drain valve

to facilitate this. Call and ask your installer if you are unsure.

Silent mode

The heat pump can be set to "Silent mode", which reduces

the heat pump’s noise level. This function is useful when

F2050 must be placed in noise-sensitive areas. The function

should only be used for limited periods, because F2050

might not reach its dimensioned power.

Updating the software

Information about updating software can be found in the

Installer Manual for your indoor module or control module.

NIBE F2050Chapter 4 | Maintenance of F20508

Maintenance of F2050

In most cases, the indoor module/control module notes a

malfunction (a malfunction can lead to disturbance in com-

fort) and indicates this with alarms and action instructions

in the display.

NOTE

Work behind covers secured by screws may only

be carried out by, or under the supervision of, a

qualified installation engineer.

Troubleshooting

If the operational interference is not shown in the display

the following tips can be used:

BASIC ACTIONS

•Group and main fuses of the accommodation.

•The property's earth circuit breaker.

•Make sure that the air flow to F2050 is not blocked by

foreign objects.

•Check that F2050 does not have any external damage.

ICE BUILD-UP IN THE FAN, GRILLE AND/OR FAN

CONE

Set the "Fan de-icing" function in the indoor module/control

module. For more information, see the section "Control –

Heat pump EB101" in the Installer Manual.

If problems arise, contact your installer.

WATER BELOW F2050 (LARGER AMOUNT)

•Fit accessory KVR 10 to divert condensation from the

air/water heat pump.

•Check that the water drainage via the condensation pipe

(KVR 10) is working.

9Chapter 5 | Disturbances in comfortNIBE F2050

Disturbances in comfort

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