Nibe FIGHTER 1250 Bedienungsanleitung

LEK

User guide

Transport / Installation

Commissioning / Adjustment

Accessories with quick guide

Control / Alarm

Technical data

Item register

MOS GB 0844-5

NIBE FIGHTER 1250

031132

INSTALLATION AND MAINTENANCE INSTRUCTIONS

NIBE FIGHTER 1250

1NIBE FIGHTER 1250

General information about the installation.................. 2

Installation data .......................................................... 2

USER GUIDE................................................................ 3

General information about the heat pump.................. 4

The heat pump’s sub system and its function .............. 5

The front panel........................................................... 6

Heating settings.......................................................... 8

Hot water settings .................................................... 11

Quick guide - heating ............................................... 11

Quick guide – hot water ........................................... 13

Quick guide – extra hot water................................... 13

Maintenance............................................................. 14

Disturbances in comfort............................................ 15

Alarm indication ....................................................... 16

TRANSPORT / INSTALLATION ..................................... 17

Transport and installation.......................................... 18

Inspection of the installation ..................................... 19

Pipe connections....................................................... 20

Electrical connection ................................................. 24

COMMISSIONING AND ADJUSTMENT....................... 29

Filling and venting the brine system .......................... 30

Filling and venting the heating medium system......... 30

Start-up and inspection............................................. 31

Readjustment............................................................ 31

Emptying the hot water heater ................................. 31

ACCESSORIES WITH QUICK GUIDE ........................... 33

Quick guide - RCU 11 ............................................... 35

Quick guide - ESV 21 ................................................ 36

Quick guide - RG 10 ................................................. 36

Quick guide – POOL 11............................................. 37

Quick guide – RE 10.................................................. 38

Contents

CONTROL / ALARM................................................... 39

Changing parameters ............................................... 41

Main menus.............................................................. 52

Alarm ....................................................................... 66

TECHNICAL DATA ..................................................... 69

List of components ................................................... 70

Dimensions............................................................... 72

Electrical circuit diagram ........................................... 73

Outline Diagram ....................................................... 78

Technical speciﬁcations ............................................. 79

ITEM REGISTER ......................................................... 81

NIBE FIGHTER 1250

General

Icompleted by the installation engineer when the heat pump is installed

Installation date

Serial number (95)

should always be stated with all correspondence with NIBE.

_ _ _ _ _ _ _ _ _ _ _ _ _ _

NIBE FIGHTER 1250

Installer

Type of brine - Mixing proportion/freezing point

Active drilling depth/collector length

Settings

Date ________ Signed ______________________________

Accessories

Installation data

no. Name Fact.

Setting. Set EBV(2)

Knob Name

Factory

set

Mode

Set

1.4 Start temperature

47 100 Fuse 20

1.5 Stop temperature

54 101 Max electrical

output, mode

1.6 Stop temp XHW 60 102 Max hot water

temperature, mode

C (65 °C)

1.8 Interval XHW 14

2.1 Curve coefﬁcient 9

2.2 Offset heating curve 0

2.3 Flow line temp/Min 15

2.4 Flow line temp/Max 55

5.6 Max return line 53

2.7 Circ. pump controls

heat

100

✓Product

Exhaust air module FLM 30

Room sensor RG 10

Extra shunt ESV 21

Pool control POOL11

Communication module RCU 11

In order to get the ultimate beneﬁt from your NIBE

FIGHTER 1250 heat pump you should read through this

Installation and Maintenance Instruction.

- Section A contains information that may be of use to

the end user.

NIBE FIGHTER 1250 is a Swedish made, quality product

offering a long life span and safe operation.

Corrosion protection

Enamel Stainless steel Copper

NIBE FIGHTER 1250

USER GUIDE

USER GUIDE........................................................................................3

General information about the heat pump..........................................4

Product information............................................................................4

What the heat pump can do...............................................................4

The heat pump’s sub system and its function ......................................5

Some heat pump technology .............................................................. 5

The front panel...................................................................................6

This is how to use the front panel ....................................................... 7

Quick movement ................................................................................7

Menu types.........................................................................................7

Key lock..............................................................................................7

Control computer ..............................................................................7

Heating settings..................................................................................8

Changing the room temperature manually..........................................8

Default setting....................................................................................8

Basic values for the automatic heating control ...................................9

Readjustment the default settings.......................................................9

Controlling the heat supply...............................................................10

Standby mode ..................................................................................10

Quick guide – menu settings heat production ................................... 11

Hot water settings ............................................................................12

Extra Hot Water ................................................................................ 12

Quick guide – menu settings hot water production...........................13

Quick guide – menu settings extra hot water .................................... 13

Maintenance.....................................................................................14

Saving tips ........................................................................................14

Comfort disruption ...........................................................................15

Alarm indications..............................................................................16

NIBE FIGHTER 1250

Product information

NIBE FIGHTER 1250 is a complete modern heat pump that

offers effective technical energy saving and reduced carbon

dioxide emissions. Heat production is safe and economical

with integrated hot water heater, immersion heater, circu-

lation pumps and control system.

Heat is obtained via a closed system where water mixed

with antifreeze circulates in a hose out to the heat source

(rock/ground/lake). As the temperature in the ground

remains relatively constant throughout the year, the heat

pump can efﬁciently recover the renewable “solar energy”

that is stored there.

Features of NIBE FIGHTER 1250 :

Optimal annual heating factor thanks to the inverter

controlled compressor.

Inverter controlled brine pump that supplies the heat

pump with suitable brine ﬂow.

Minimal operating costs, no expensive peaks when it is

cold outside. The compressor adapts as necessary.

Integrated hot water heater.

High temperature range

– Flow line temperature 65 °C

– Return line temperature 56 °C.

Integrated clock for scheduling extra hot water and

temperature lowering/increasing the ﬂow line tempera-

ture.

Prepared for pool heating.

Prepared for control of two heating systems.

What the heat pump can do

NIBE FIGHTER 1250 is part of a new generation of heat

pumps that can supply your house with cheap and envi-

ronmentally friendly heat via an efﬁcient inverter control-

led compressor. The heated water circulates around the

house’s heating unit and heats the water in the 160 litre

hot water heater, which is insulated with EPS (environmen-

tally friendly cellular plastic) for minimal heat loss.

The heat pump can be connected to an optional low tem-

perature distribution system. e.g. radiators, convectors or

under ﬂoor heating. It is also prepared for connection to

several different products and accessories, e.g. extra hot

water heater, ventilation recovery, pool, free cooling and

heating systems with different temperatures.

An 8 kW immersion heater connects automatically as re-

serve operation if something unexpected should occur.

FIGHTER 1250 is equipped with a control computer for

many options, e.g. good comfort, good economy and safe

operation. Clear information about status, operation time

and all temperatures in the heat pump are shown on the

backlit front panel. This means, for example, that external

unit thermometers are not necessary.

General information about the heat pump

AGeneral information about the heat pump

NIBE FIGHTER 1250

The heat pump’s sub system and its function

Some heat pump technology

The heat pump functions can easily be divided into four

sub processes:

1. Fluid (the refrigerant) that is used in our heat pump

boils* at a very low temperature in the evaporator. The

heat retrieved by the circulating ﬂuid (the brine) from

the ground/rock/lake is enough to cause it to boil.

2. The steam (gas) that is produced when the refrigerant

boils, is drawn into the speed controlled compressor.

There it is compressed just enough for the relevant heat

demand. As the pressure of the gas increases it also be-

comes extremely hot.

(The low temperature refrigerant has been converted to

a high tempered gas)

3. The hot gas is routed into a heat exchanger (condenser)

where it releases its heat into the heating system’s water

(heating medium). It passes through the same con-

denser but on the other side of a separating wall so that

the mediums do not mix.

When heat is transferred to the heating medium the gas

is cooled and converted to a ﬂuid again (condenses).

The heat pump’s sub system and its function

4. The expansion valve ﬁnally reduces the pressure of

the ﬂuid (refrigerant, so that it can be re-boiled at a low

temperature) at the same time as it only releases the

exact amount of ﬂuid to the evaporator that is to be

reheated and evaporated by the heat retrieved from the

ground.

The described process is repeated over and over and

only the compressor and circulation pumps require elec-

trical energy during normal operation.

The energy for the heating system - and domestic

hot water is obtained, as described above, from the

ground. The heat pump’s COP value determines how

effectively this is carried out(heating factor). The value is

a measurement of how much heat is obtained in rela-

tion to consumed electrical energy.

*) The boiling point of different ﬂuids varies but the pres-

sure in the vessel is important. Water boils at +100 °C in

a saucepan on a hob but would have done so at +80 °C

if the air pressure in the room had been half as high. This

is a property that is used within heat pump technology.

Note that all material that has a greater temperature

than -273 °C contains heat that is possible to recover, the

greater the temperature of the refrigerant the more ef-

fectively this can be carried out.

Värmebärarpump

(varvtalsstyrd)

Eltillsats

Växelventil

Värmebärare fram

(VBF)

Värmebärare retur

(VBR)

Förångare

Köldbärarpump

(varvtalsstyrd)

Kompressor (varvtalsstyrd)

Kondensor

VV KV

Expansionsventil

Köldmediei

Värme

returledning

Dubbelmantel

Köldbärare in (KBin)

Köldbärare ut (KBut)

Varmvattenberedare

Värme

framledning

1 3

HWC

HW CW

Heating flow

line

Heating return

line

Hot water heater

Double jacket

Brine in (KBin)

Brine pump (speed

controlled)

Brine out (KBut)

Evaporator

Refrigerant Expansion valve

Compressor (speed controlled)

Condenser

Heating medium

pump (speed control-

led)

Electrical addition

Heating medium

return (VBR)

Heating medium flow

(VBF)

Shuttle valve

NIBE FIGHTER 1250

1 Normal mode

All control functions connected

0 Shutdown

Standby mode

Only the circulation pump and electrical

addition (electrical step 2) are operational.

A BI II III I II

5 0 . 0 ° C

Va r m v a t t e n t e m p e r a t u r

13.43

1.0 P

The change does not need to be conﬁrmed

with the enter button.

Button pressing (the change does not need to

be conﬁrmed with the enter button).

- Current operating mode is shown in the

display.

- Further button press changes operating

mode.

Press the enter button returns to the normal

display mode.

For information about the different operat-

ing modes, see Chapter A ”Heating settings”,

”Controlling the heat supply-> Operating mode.

During normal operation, the status lamp

lights green. In the event of an alarm, it

lights red.

- Scroll forward in the menu system

- Increase the value of the selected parameter

See the section “Control – General”

The front panel

In normal mode hot water temperature is

displayed.

Description of current

display parameter

Menu number

Pool heating in progress.

Key lock activated.

Timer function

No function

Operating mode

Extra hot water (XHW)

Status lamp

- Select lower menu in the menu system

- Parameter change activated

- Parameter change conﬁrmed

See the section “Control – General”

Enter button

- Scroll back in the menu system

- Reduce the value of the selected parameter

See the section “Control – General”

Minus button

Plus button

Information symbols

Current display parameter

- Compressor is operational

Flashing symbol means that the load monitor

limits compressor operation.

Compressor symbol

House heating in progress

Heating system symbol

”I” Circulation pump is in operation.

”II” Circulation pump 2 is in operation

(accessory ESV 21 required).

Circulation pump symbol

If electrical addition is connected

”I” Electrical step 1

”II” Electrical step 2

”I II” Electrical step 1+2

Flashing text means that the load monitor

limits the electrical output.

Addition. heat symbol

The heat pump charges the hot water.

”A” Temporary temperature increase in progress.

”B” Time based temperature increase in progress,

e.g. periodic.

Hot water symbol

AThe front panel

1.0

Switch

- Turning clockwise (+) increases the room

temperature.

When the knob is turned menu 2.0 is shown

on the display and the value for the calculated

ﬂow temperature changes.

Offset heating curve

NIBE FIGHTER 1250

Key lock

A key lock can be activated in the main menus by simulta-

neously pressing the plus and the minus buttons. The key

symbol will then be shown on the display.

The same procedure is used to deactivate the key lock.

Control computer

The heat pump is controlled by a computer that ensures

that all component parts work in the most efﬁcient way for

the relevant operation.

It controls and monitors hot water production and provides

information about set control conditions. In the event of a

malfunction, an alarm and warnings are transmitted to the

front panel to keep the user informed about the conditions

at all time. At the same time, the heat pump is controlled

in a way that prevents damage to the installation.

Extra accessories

Accessories for controlling extra heating circuit and pool

heating for example, are also controlled by the control

computer according to the settings carried out on the front

panel. If necessary, it is also possible to connect a room

temperature sensor.

This is how to use the front panel

All the most common settings are made from the panel as

well as control computer instructions such as comfort etc.

that you require the heat pump system to fulﬁl.

In order for the installation to be used optimally, certain

default settings must have been made (see the section

”Default settings”) and the installation is carried out ac-

cording to the relevant instructions.

Menu types

Menu 1.0 is normally shown on the

display

(the temperature in the hot water heater)

The plus and minus buttons and the en-

ter button are used to scroll through the

menu system as well as to change the set

value in some menus.

Control is divided into different menu types depending on

how ”deep” into the controls you need to go.

Normal [N]: The settings you as a customer often

need.

Extended [E]: Shows all detailed menus except the serv-

ice menus.

Service [S]: Shows all menus.

Changing of menu type is done from menu 8.1.1

Quick movement

To quickly return to the main menu from a sub menu, press

one of the following buttons:

1. Operating mode button

2. The Enter button

Note! Ensure that the operating mode (Auto, Summer,

Only additional heat, alarm mode) is not altered

during quick movement.

The front panel

NIBE FIGHTER 1250

The indoor temperature depends on several factors.

Sunlight and heat emissions from people and house-

hold machines are normally sufﬁcient to keep the house

warm during the warmer parts of the year.

When it gets colder outside, the heating system must

be started. The colder it is outside, the warmer radia-

tors and under ﬂoor heating systems must be.

Controlling heat production

Normally the heat pump heats the water (heating medium)

to the temperature required at a certain outdoor tempera-

ture. This occurs automatically on the basis of the collected

temperature values from the outdoor sensor and sensors

on the lines to the radiators (ﬂow line sensors).

However, the correct default settings must be made on the

heat pump ﬁrst, see the section “Default settings”.

The temperature information that the outdoor sensor

(mounted on an exterior wall of the house) sends to the

heat pump’s control computer senses variations in the

outdoor temperature early on. It does not have to be cold

inside the house before the control system is activated, as

soon as the temperature drops outside, the temperature of

the water to the radiators inside the house automatically

increases.

Radiator temperature

The temperature of the radiators in relation to the outdoor

temperature can be determined by you by selecting a heat

curve and by using the ”Offset heat curve” knob on the

heat pump’s front panel.

Default setting

The basic heating is set using menu 2.1 and with the

“Heating curve offset” knob.

If you do not know the correct settings use the basic data

from the map opposite.

Changing the room temperature manually

If you want to temporarily or permanently increase or low-

er the indoor temperature turn the ”Offset heating curve”

knob clockwise or anticlockwise. One line approximately

represents a 1 degree change in room temperature.

Heating settings

An increase in the room temperature may

be inhibited by the radiator or underfloor

heating thermostats, if so these must be

turned up.

Wait one day between settings so that the

temperatures have time to stabilise.

Note!

°C

FRAMLEDNINGSTEMPERATUR

- 40 °C

UTETEMPERATUR

- 10

10 - 20 - 30

15 14 13 12 11 10 9

VÄRMEKURVA

- 5

+ 5

FÖRSKJUTNING

VÄRMEKURVA (0)

15 14 13 12 11 10

- 40 °C

UTETEMPERATUR

- 10

- 5

+ 5

°C

FRAMLEDNINGSTEMPERATUR

- 20 - 30

FÖRSKJUTNING

VÄRMEKURVA (-2)

VÄRMEKURVA

1514 13 12 11 10

- 40 °C

UTETEMPERATUR

- 10

- 5

+ 5

°C

FRAMLEDNINGSTEMPERATUR

- 20 - 30

FÖRSKJUTNING

VÄRMEKURVA (+2)

VÄRMEKURVA

Shifting the heating curve -2

Shifting the heating curve 0

Shifting the heating curve +2

Setting with diagrams

The diagram is based on the dimensioned outdoor temper-

ature in the area and the dimensioned supply temperature

of the heating system. When these two values “meet”, the

heating control's curve coefﬁcient can be read. This is set

under menu 2.1, Curve coefﬁcient.

Menu 2.1 Curve coefﬁcient Offset heating curve

HEATING CURVE

OFFSET HEAT CURVE

SUPPLY TEMPERATURE

OUTSIDE TEMPERATURE

HEATING CURVE

OFFSET HEAT CURVE

SUPPLY TEMPERATURE

OUTSIDE TEMPERATURE

HEATING CURVE

OFFSET HEAT CURVE

SUPPLY TEMPERATURE

OUTSIDE TEMPERATURE

Note!

C u r v e c o e f f i c i e n t

2.1

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