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Installer manualLEK

SMO 20Control module

IHB GB 1624-6 231758

Quick guideNavigation

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.

temperature1.1

Set the indoor climate

2X

INDOOR CLIMATE

HOT WATER

INFO

HEAT PUMP

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

INDOOR CLIMATE

HOT WATER

INFO

HEAT PUMP

off

temporary lux2.1

3 hrs

6 hrs

12 hrs

one timeincrease

Increase hot water volume

2X

1X

To temporarily increase the amount of hot water (if a hot water heater is installed to your SMO 20), first turn thecontrol knob to mark menu 2 (water droplet) and then press the OK button twice.

In event of disturbances in comfortIf a disturbance in comfort of any type occurs there are some measures that can be taken before you need tocontact your installer. See page 46 for instructions.

Table of Contents

41 Important information4Safety information

4General

72 Delivery and handling7Mounting

7Supplied components

83 The Control Module Design8Electrical components

94 Pipe connections9General

9Compatible NIBE air/water heat pumps

9Symbol key

10Temperature sensor installation on pipe

10Docking alternatives

145 Electrical connections14General

15Accessibility, electrical connection

16Cable lock

17Connections

20Optional connections

24Connecting accessories

256 Commissioning and adjusting25Preparations

25Commissioning with NIBE air/water heatpump

25Commissioning with additional heating only

25Check the reversing valve

25Check AUX socket

25Cooling mode

26Start guide

27Setting the cooling/heating curve

29Setting hot water circulation

30SG Ready

317 Control - Introduction31Display unit

32Menu system

358 Control35Menu 1 - INDOOR CLIMATE

36Menu 2 - HOT WATER

36Menu 3 - INFO

37Menu 4 - MY SYSTEM

38Menu 5 - SERVICE

439 Service43Service actions

4610 Disturbances in comfort46Manage alarm

46Troubleshooting

47Additional heating only

4811 Accessories

5012 Technical data50Dimensions and setting-out coordinates

51Technical specifications

52Energy labelling

53Electrical circuit diagram

57Index

3Table of Contents |SMO 20

Safety informationThis manual describes installation and service proceduresfor implementation by specialists.

This appliance can be used by childrenaged from 8 years and above and per-sons with reduced physical, sensory ormental capabilities or lack of experienceand knowledge if they have been givensupervision or instruction concerning useof the appliance in a safe way and under-stand the hazards involved. Children shallnot play with the appliance. Cleaningand user maintenance shall not be madeby children without supervision.

Rights to make any design or technicalmodifications are reserved.

©NIBE 2016.

Symbols

NOTE

This symbol indicates danger to machine orperson.

Caution

This symbol indicates important informationabout what you should observe when maintain-ing your installation.

TIP

This symbol indicates tips on how to facilitateusing the product.

MarkingSMO 20 is CE marked and fulfils IP21.

The CE marking means that NIBE ensures that theproduct meets all regulations that are placed on it basedon relevant EU directives. The CE mark is obligatory formost products sold in the EU, regardless where they aremade.

IP21 means that objects with a diameter larger than orequivalent to 12.5 mm cannot penetrate and causedamage and that the product is protected against vertic-ally falling drops of water.

General

Serial numberThe serial number can be found on the top of the coverfor the control module and in the info menu (menu 3.1).

LEK

Serial number

Caution

Always give the product's serial number whenreporting a fault.

RecoveryLeave the disposal of the packaging to the in-staller who installed the product or to specialwaste stations.

Do not dispose of used products with normalhousehold waste. It must be disposed of at a

special waste station or dealer who provides this type ofservice.

Improper disposal of the product by the user results inadministrative penalties in accordance with current legis-lation.

Country specific information

Installer manual

This installer manual must be left with the customer.

SMO 20Chapter 1 | Important information4

1 Important information

Inspection of the installationCurrent regulations require the heating installation to be inspected before it is commissioned. The inspection mustbe carried out by a suitably qualified person. Fill in the page for information about installation data in the Usermanual.

DateSignatureNotesDescription✔

Electricity (page 14)

Communication, heat pump

Connected supply 230 V

Outside sensor

Temperature sensor, hot water charging

Temperature sensor, hot water top

Temperature sensor, external flow line

Temperature sensor, external supply lineafter electric heater

Temperature sensor, external return line

Charge pump

Shuttle valve

AUX1

AUX2

AUX3

AUX4

AUX5

AUX6

AA2-X4

Miscellaneous

Checking additional heater

Checking the function of the reversingvalve

Checking charge pump function

Completed installation check of heatpump and associated equipment

5Chapter 1 | Important informationSMO 20

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Contact information

KNV Energietechnik GmbH, Gahberggasse 11, 4861 Schörfling

Tel: +43 (0)7662 8963-0 Fax: +43 (0)7662 8963-44 E-mail: [email protected] www.knv.at

AT

NIBE Wärmetechnik c/o ait Schweiz AG, Industriepark, CH-6246 Altishofen

Tel: (52) 647 00 30 Fax: (52) 647 00 31 E-mail: [email protected] www.nibe.ch

CH

Druzstevni zavody Drazice s.r.o, Drazice 69, CZ - 294 71 Benatky nad Jizerou

Tel: +420 326 373 801 Fax: +420 326 373 803 E-mail: [email protected] www.nibe.cz

CZ

NIBE Systemtechnik GmbH, Am Reiherpfahl 3, 29223 Celle

Tel: 05141/7546-0 Fax: 05141/7546-99 E-mail: [email protected] www.nibe.de

DE

Vølund Varmeteknik A/S, Member of the Nibe Group, Brogårdsvej 7, 6920 Videbæk

Tel: 97 17 20 33 Fax: 97 17 29 33 E-mail: [email protected] www.volundvt.dk

DK

NIBE Energy Systems OY, Juurakkotie 3, 01510 Vantaa

Puh: 09-274 697 0 Fax: 09-274 697 40 E-mail: [email protected] www.nibe.fi

FI

NIBE Energy Systems France Sarl, Zone industrielle RD 28, Rue du Pou du Ciel, 01600 Reyrieux

Tel : 04 74 00 92 92 Fax : 04 74 00 42 00 E-mail: [email protected] www.nibe.fr

FR

NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way, Chesterfield S41 9QG

Tel: 0845 095 1200 Fax: 0845 095 1201 E-mail: [email protected] www.nibe.co.uk

GB

NIBE Energietechniek B.V., Postbus 634, NL 4900 AP Oosterhout

Tel: 0168 477722 Fax: 0168 476998 E-mail: [email protected] www.nibenl.nl

NL

ABK AS, Brobekkveien 80, 0582 Oslo, Postadresse: Postboks 64 Vollebekk, 0516 Oslo

Tel. sentralbord: +47 23 17 05 20 E-mail: [email protected] www.nibeenergysystems.no

NO

NIBE-BIAWAR Sp. z o. o. Aleja Jana Pawła II 57, 15-703 BIAŁYSTOK

Tel: 085 662 84 90 Fax: 085 662 84 14 E-mail: [email protected] www.biawar.com.pl

PL

© "EVAN" 17, per. Boynovskiy, Nizhny Novgorod

Tel./fax +7 831 419 57 06 E-mail: [email protected] www.nibe-evan.ru

RU

NIBE AB Sweden, Box 14, Hannabadsvägen 5, SE-285 21 Markaryd

Tel: +46-(0)433-73 000 Fax: +46-(0)433-73 190 E-mail: [email protected] www.nibe.se

SE

For countries not mention in this list, please contact Nibe Sweden or check www.nibe.eu for more information.

SMO 20Chapter 1 | Important information6

Mounting

NOTE

For wall mounting, use the mounting adaptedfor the base.

110

410

360

110

10

310

21570

35

Use all mounting points and install SMO 20 upright flatagainst the wall without any part of the control moduleprotruding out beyond the edge of the wall.

Leave at least 100 mm free space around the controlmodule to facilitate access and cable routing on installa-tion and service.

NOTE

Access the screws for installing the front coverfrom underneath.

Supplied components

Heating pipe pasteOutside sensor

LE

K

Temperature sensorInsulation tape

LE

K

Cable tiesAluminium tape

7Chapter 2 | Delivery and handlingSMO 20

2 Delivery and handling

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1

AA2

AA4-XJ3

X1

SF1

AA4

X2

AA7

AA4-XJ4

LEK

L N 1 1 0 2 3 4PE

AA2

X1

FA1

AA7

UB2UB1

PF3 Electrical componentsBase cardAA2Display unitAA4

AA4-XJ3 USB socket

AA4-XJ4 Service outlet (No function)Extra relay circuit boardAA7Miniature circuit-breakerFA1Terminal block, incoming electrical supplyX1Terminal block, control signal circulation pump,sensors AUX inputs and heat pump

X2

SwitchSF1

Serial number platePF3Cable grommet, incoming supply electricity,power for accessories

UB1

Cable gland, signalUB2

Designations in component locations according tostandard IEC 81346-1 and 81346-2.

SMO 20Chapter 3 | The Control Module Design8

3 The Control Module Design

GeneralPipe installation must be carried out in accordance withcurrent norms and directives. See manual for compatibleNIBE air/water heat pump for installation of the heatpump.

CompatibleNIBEair/waterheatpumpsCompatible NIBE air/water heat pumps must beequipped with a control card that has at least the soft-ware version given in the following list. The control cardversion is displayed in the heat pump's display (if applic-able) upon start-up.

Software versionProduct

55F2015

55F2016

118F2020

55F2025

55F2026

all versionsF2030

all versionsF2040

all versionsF2120

55F2300

Symbol keyMeaningSymbol

Shut-off valve

Tapping valve

Trim valve

Shunt / reversing valve

Safety valve

Temperature sensor

Expansion vessel

Pressure gaugeP

Circulation pump

Particle filter

Auxiliary relay

Compressor

Heat exchanger

Radiator system

Domestic hot water

Under floor heating systems

Cooling system

9Chapter 4 | Pipe connectionsSMO 20

4 Pipe connections

Temperature sensor installationon pipe

LEK

LEK

The temperature sensors are mounted with heat con-ducting paste, cable ties (the first cable tie is secured tothe pipe in the middle of the sensor and the other cabletie is mounted approx. 5 cm beyond the sensor) andaluminium tape. Then insulate with supplied insulationtape.

NOTE

Sensor and communication cables must not beplaced near power cables.

Docking alternativesSMO 20 can be connected with other products fromNIBE in several different ways, some of which are shownbelow (accessories may be required).

Further option information is available at www.nibe.euand in the respective assembly instructions for the ac-cessories used. See page 48 for a list of the accessoriesthat can be used with SMO 20.

Installations with SMO 20 can produce heating and hotwater. Cooling can also be produced, depending onwhich heat pump is used.

On cold days of the year when the access to energy fromthe air is reduced the additional heating can compensateand help to produce heat. The additional heating is alsogood to have as assistance if the heat pump ends upoutside its working range or if it has been blocked forany reason.

NOTE

The heating medium side and the hot waterside must be fitted with the necessary safetyequipment in accordance with the applicableregulations.

This is the outline diagram. Actual installationsmust be planned according to applicablestandards.

SMO 20Chapter 4 | Pipe connections10

ExplanationSMO 20AA25Outdoor sensor1)BT1Temperature sensor, hot water charging1)BT6Temperature sensor, hot water top1)BT7Temperature sensor, external supply line1)BT25Room sensorBT50Temperature sensor, external supply lineafter electric heater

BT63

Temperature sensor, external return line1)BT71Circulation pump, Heating mediumGP10Reversing valve, Hot water/Heating medi-um2)

QN10

Additional heatEB1Immersion heaterEB1Auxiliary relay/Contactor2)KA1Heat pump systemEB101Temperature sensor, return line3)BT3Temperature sensor, condenser supply line3)BT12Heat pumpEB101Safety valveFL10Charge pump2)GP12Particle filter3)HQ1Drain valve, Heating mediumQM1Shut-off valve, Heating medium, FlowQM31Shut off valve, Heating medium, ReturnQM32Shut-off valveQM43

Cooling systemEQ1Temperature sensor, cooling supply line2)BT64Single jacket accumulator tank, coolingCP6Circulation pump, coolingGP13Reversing valve, Cooling/Heating2)QN12

MiscellaneousExpansion vessel closed, Heating mediumCM1Buffer vessel (UKV)CP5Accumulator tank with hot water heatingCP10Immersion heaterEB20Safety valve, Heating mediumFL2Auxiliary relay/ContactorKA1Trim valveRN10

1) Included in and supplied SMO 20

2) Included in and supplied accessory

3) Included in and supplied NIBE heat pump (can vary dependingon heat pump).

Designations according to standards 81346-1 and 81346-2.


Compatible NIBE air/water heat pump together with SMO 20 - docking step controlledadditional heat before reversing valve for hot water and cooling function (4 pipe system)

-FL2

-CM1

-EB101

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB101

-HQ1

-BT1

-AA25

-AA25-BT50-AA25

-BT63-KA1

-EB1

-FL10

-RN10

-CP10

-AA25-QN10

-AA25-BT7

-AA25-BT6

-GP13

-CP6

-BT64

-EQ1-QN12

-EQ1

-EB1

NOTE

NIBE does not supply all components in thisoutline diagram.

SMO 20 (AA25) starts and stops the heat pump (EB101)to meet the heat and hot water demand of the installa-tion. At simultaneous heating and hot water demandthe reversing valve switches (AA25-QN10) periodicallybetween the climate system and the water heater/accu-mulator tank (CP10). When the hot water heater/accu-mulator tank is fully charged (CP10), the reversing valveswitches (AA25-QN10) to the climate system.

Additional heat (EB1) is connected automatically whenthe power demand for the installation exceeds the heatpump capacity. This is used for both heating and char-ging hot water.

The additional heat can also be used if a higher temper-ature in the hot water is required than the heat pumpcan produce.

During cooling operation (requires compatible heatpump) the reversing valve (EQ1-QN12) switches to thecooling system (EQ1). If several simultaneous demandsoccur while there is a cooling demand the installationreacts differently. In event of a hot water demand thereversing valve (EQ1-QN12) switches back and hot wateris produced until the demand is fulfilled. In event of aheating demand the reversing valve (EQ1-QN12) insteadswitches periodically between the demands. If the cool-ing demand is met, the reversing valve switches back tobasic mode (heat/hot water).

SMO 20Chapter 4 | Pipe connections12

Compatible air/water heat pump together with SMO 20 - docking step controlled additionalheat after reversing valve for hot water and cooling function (4 pipe system)

-EB20

-KA1

-FL2

-CM1

-EB101

-QM1

-BT3

-BT12 -QM31

-QM32 -QM43-GP12

-EB101

-HQ1

-BT1

-AA25

-AA25 -AA25

-FL10

-RN10

-CP10

-AA25-QN10

-AA25-BT7

-AA25-BT6

-BT25

-EB1

-CP5

-GP10

-KA1

-BT71

-EB1

-AA25

-GP13

-CP6

-BT64

-EQ1-QN12

-EQ1

-BT50

NOTE

NIBE does not supply all components in thisoutline diagram.

This installations alternative is suitable for more complexinstallations with a focus on comfort.

SMO 20 (AA25) starts and stops the heat pump (EB101)to meet the heat and hot water demand of the installa-tion. At simultaneous heating and hot water demandthe reversing valve switches (AA25-QN10) periodicallybetween the climate system and the water heater/accu-mulator tank (CP10). When the hot water heater/accu-mulator tank is fully charged (CP10), the reversing valveswitches (AA25-QN10) to the climate system.

Additional heat (EB1) is connected automatically whenthe energy demand exceeds the heat pump capacity.Immersion heater (EB20) in the water heater/accumulat-or tank (CP10) is used during the time to produce hotwater if the heat pump (EB101) is used for heating thebuilding at the same time.

The immersion heater (EB20) can also be used if a highertemperature of hot water is required than the heat pumpcan produce.

During cooling operation (requires compatible heatpump) the reversing valve (EQ1-QN12) switches to thecooling system (EQ1). If several simultaneous demandsoccur while there is a cooling demand the installationreacts differently. In event of a hot water demand thereversing valve (EQ1-QN12) switches back and hot wateris produced until the demand is fulfilled. In event of aheating demand the reversing valve (EQ1-QN12) insteadswitches periodically between the demands. If the cool-ing demand is met, the reversing valve switches back tobasic mode (heat/hot water).


General■ Disconnect SMO 20 before insulation testing the house

wiring.

■ If the building is equipped with an earth-fault breaker,SMO 20 should be equipped with a separate one.

■ SMO 20 must be installed via a circuit breaker with aminimum breaking gap of 3 mm.

■ For the electrical wiring diagram for the control mod-ule, see page .53.

■ Communication and sensor cables to external connec-tions must not be laid close to high current cables.

■ The minimum area of communication and sensorcables to external connections must be 0.5 mm² up to50 m, for example EKKX, LiYY or equivalent.

■ Use a screened three core cable for communicationwith the heat pump.

■ When cable routing into SMO 20, cable grommets(UB1 and UB2, marked in image) must be used.

NOTE

The switch (SF1) must not be moved to "" or" " until the boiler in the system has been filledwith water. The compressor in the heat pumpand any external additional heat can be dam-aged.

NOTE

Electrical installation and service must be carriedout under the supervision of a qualified electri-cian. Cut the current with the circuit breakerbefore carrying out any servicing. Electrical in-stallation and wiring must be carried out in ac-cordance with the stipulations in force.

When installing SMO 20, NIBE's air/water heatpump and any addition must be current free.

NOTE

See outline diagram for your system for physicallocation of the temperature sensor that is to beinstalled.

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SF1

FA1

UB2UB1

Miniature circuit-breakerThe control module operating circuit and parts of its in-ternal components are internally fused by a miniaturecircuit breaker (FA1).

SMO 20Chapter 5 | Electrical connections14

5 Electrical connections

Accessibility, electricalconnectionThe cover of the control module is opened using a Torx25 screwdriver. Assembly takes place in the reverse order.

3

1

2

LEK

LEK

NOTE

The cover to access the base board is openedusing a Torx 25 screwdriver.3

1

2

LEK

LEK

The display may need to be moved for easier access whenconnecting electrics. This is easily done by following thesesteps.1.

LEK

LEK

LEK

LEK

b

a

Press in the catch on the upper rear side of the dis-play unit towards you (a) and move the display unitupwards (b) so that the mountings unhook from thepanel.

2.

LEK

LEK

LEK

LEK

b

a

Lift the display unit from its mountings.3.

LEK

LEK

LEK

LEK

b

a

Align the two lower mountings on the reverse of thedisplay unit with the two upper holes in the panelas illustrated.

15Chapter 5 | Electrical connectionsSMO 20

4.

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LEK

LEK

LEK

b

a

Secure the display on the panel.5. When the electrical connection is ready the display

must be reinstalled with three mounting pointsagain, otherwise the front cover cannot be installed.

Cable lockUse a suitable tool to release/lock cables in the heatpump terminal blocks.

Terminal block on the electrical card

LE

K

1

1

2

2

3

3

1

2

3

3

4

1

2LE

K

1

1

2

2

3

3

1

2

3

3

4

1

2

1

2

Terminal block

LEK

1 mm

3,5 mm

LEK

1 mm

3,5 mm


ConnectionsNOTE

To prevent interference, unscreened communic-ation and/or sensor cables to external connec-tions must not be laid closer than 20 cm fromhigh voltage cables.

Power connectionSMO 20 must be installed via an isolator switch with aminimum breaking gap of 3mm. Minimum cable areamust be sized according to the fuse rating used.

1NL

X1

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Tariff controlIf the voltage to the compressor in the heat pump disap-pears for a certain period, simultaneous blocking of thesemust take place via software controlled input (AUX input)to avoid alarm, see page 22.

Connecting the charge pump for the heatpumpConnect circulation pump (EB101-GP12) to terminalblock X4:5 (PE), X4:6 (N) and X4:7 (230 V) on the baseboard (AA2) as illustrated.

Connect control signal for (EB101-GP12) to terminalblock X2:1 (PWM) and X2:2 (GND) as illustrated.

987654

SMO

Externt

PE LN

External

SMO 20

AA2-X4

EB101-GP12

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AA2-X4

2

1

4

3

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ExterntExternal

SMO 20

X2

EB101-GP12

PWM

GND

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Communication with heat pumpConnect the heat pump (EB101) with a screened threecore cable to terminal block X2:19 (A), X2:20 (B) andX2:21 (GND) as illustrated.

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A

B

GND

SMO

19

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21

18

F2120

2

1

3

4GND

B

A

6

5

4

3

2

1

A

B

GND

A

B

GND

F2040

A

B

GND

F2030

54

23

1

A

B

GND

F2016/F2026

56

42

31

A

B

GND

F2015/F2020/F2025/F2300

X2

SMO 20

AA21-J2

X5

X5

AA23-X4

X22

Outside sensorInstall the outdoor temperature sensor (BT1) in the shadeon a wall facing north or north-west, so it is unaffectedby the morning sun for example.

Connect the sensor to terminal block X2:3 and X2:6. Usea twin core cable with a cable area of at least 0.5 mm².

If a conduit is used it must be sealed to prevent condens-ation in the sensor capsule.

SMO Externt

5

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ExternalSMO 20

X2

BT1

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Temperature sensor, hot water chargingThe temperature sensor, hot water charging (BT6) isplaced in the submerged tube on the water heater.


Hot water charging is activated in menu 5.2 or in thestart guide.

SMO Externt

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X2

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Temperature sensor, hot water topA temperature sensor for hot water top (BT7) can beconnected to SMO 20 to show the water temperatureat the top of the tank (if it is possible to install a sensorat the top of the tank).


SMO Externt

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X2

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Temperature sensor, external flow lineConnect the temperature sensor, external supply line(BT25) (required for additional heat after reversing valve(QN10), to terminal block X2:8 and X2:10. Use a twincore cable with a cable area of at least 0.5 mm².

SMO Externt

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10

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ExternalSMO 20

X2

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Temperature sensor, external supply atadditional heat before reversing valve (QN10)Connect the temperature sensor, external supply line(BT63) (required for additional heat before the reversingvalve for hot water charging (QN10), to terminal blockX2:9 and X2:10. Use a twin core cable with a cable areaof at least 0.5 mm².

SMO Externt

9

10

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8

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ExternalSMO 20

X2

BT63LEK

L N 1 1 0 2 3 4PE

21

20

19

18

17

16

15

14

13

12

11

10

98

76

54

32

1

X2

5

6

7

2

1

8

9

13

12

4

3

11

10

19

20

21

14

18

16

17

15

NOTE

For docking that requires connection of othersensors. See "Possible selection for AUX inputs"on page 22.


Optional connections

Room sensorSMO 20 can be supplemented with a room sensor (BT50).The room sensor has up to three functions:1. Show current room temperature in the control

module display.2. Provides the option of changing the room temperat-

ure in °C.3. Makes it possible to change/stabilise the room

temperature.

Install the sensor in a neutral position where the settemperature is required. A suitable location is on a freeinner wall in a hall approx. 1.5 m above the floor. It isimportant that the sensor is not prevented from measur-ing the correct room temperature by being located, forexample, in a recess, between shelves, behind a curtain,above or close to a heat source, in a draft from an extern-al door or in direct sunlight. Closed radiator thermostatscan also cause problems.

The control module operates without the sensor, but ifyou want to read off the accommodation's indoor tem-perature in SMO 20's display the sensor must be installed.Connect the room sensor to terminal block X2:7 andX2:10.

If the sensor is to be used to change the room temperat-ure in °C and/or to change/stabilise the room temperat-ure, the sensor must be activated in menu 1.9.4.

If the room sensor is used in a room with underfloorheating, it should only have an indicatory function, notcontrol of the room temperature.

SMO Externt

9

10

11

6

8

7

ExternalSMO 20

X2

BT50LEK

L N 1 1 0 2 3 4PE

21

20

19

18

17

16

15

14

13

12

11

10

98

76

54

32

1

X2

5

6

7

2

1

8

9

13

12

4

3

11

10

19

20

21

14

18

16

17

15

Caution

Changes of temperature in accommodationtake time. For example, short time periods incombination with underfloor heating will notgive a noticeable difference in room temperat-ure.

Step controlled additional heat

NOTE

Mark up any junction boxes with warnings forexternal voltage.

External step controlled additional heat can be controlledby up to three potential-free relays in the control module(3 step linear or 7 step binary). Alternatively two relays(2 step linear or 3 step binary) can be used for step con-trolled additional heat, which means that the third relaycan be used to control the immersion heater in the waterheater/accumulator tank.

Step in occurs with at least 1 minute interval and stepouts with at least 3 seconds interval.

Step 1 is connected to terminal block X2:2 on the addi-tional relay board (AA7).

Step 2 is connected to terminal block X2:4 on the addi-tional relay board (AA7).

Step 3 or immersion heater in the water heater/accumu-lator tank is connected to terminal block X2:6 on theadditional relay board (AA7).

The settings for step controlled additional heat are madein menu 4.9.3 and menu 5.1.12.

All additional heat can be blocked by connecting a po-tential-free switch function to the software controlledinput on terminal block X2 (see page 22) which is selec-ted in menu 5.4.

SMO

Externt

654321

1 0 PE

A1

A2

A1

A2

A1

-K1 -K2 -K3

A2

External

SMO 20

AA7-X2X1

LEK

L N 1 1 0 2 3 4PE

X1

1 1NL 0 432PE

-X2

1

123456

2 3 4 5 6

-X1

AA7-X2

If the relays are to be used for control voltage, bridgethe supply from terminal block X1:1 toX2:1, X2:3 andX2:5 on additional relay board (AA7). Connect theneutral from the external additional heat to terminalblock X1:0.

With step controlled additional heat before thereversing valve

The electric additional heat will charge with the maxim-um permitted immersion heater output together withthe compressor to conclude the hot water charging andreturn to charging the heating as soon as possible. Thisonly occurs when the number of degree minutes is belowthe start value for the additional heat.


Relay output for emergency mode

NOTE


When the switch (SF1) is in " " mode (emergency mode)the circulation pump is activated (EB101-GP12).

Caution

No hot water is produced when emergencymode is activated.

The emergency mode relay can be used to activate ex-ternal additional heat, an external thermostat must thenbe connected to the control circuit to control the temper-ature. Ensure that the heating medium circulates throughthe external additional heating.

432PE

SMO

Externt

X1

ExternalSMO 20

LEK

L N 1 1 0 2 3 4PE

21

20

19

18

17

16

15

14

13

12

11

10

98

76

54

32

1

X1

1 1NL 0 432PE

1 0 432PE

SMO

Externt

N L

X1

External

SMO 20

LEK

L N 1 1 0 2 3 4PE

21

20

19

18

17

16

15

14

13

12

11

10

98

76

54

32

1

X1

1 1NL 0 432PE

If the relay is to be used for control voltage, bridge thesupply from terminal block X1:1 to X1:2 and connectneutral and control voltage from the external additionalheat to X1:0 (N) and X1:4 (L).

External circulation pumpConnect the external circulation pump (GP10) to terminalblock X4:9 (PE), X4:10 (N) and X4:11 (230 V) on the baseboard (AA2) as illustrated.

1312111098

SMO

Externt

PE LN

External

SMO 20

AA2-X4

GP10

LEK

L N 1 1 0 2 3 4PE

AA2-X4

Shuttle valveSMO 20 can be supplemented with an external reversingvalve (QN10) for hot water control. (See page 48 for ac-cessory)

Hot water production can be selected in menu 5.2.4.

Connect the external reversing valve (QN10) as illustratedto terminal block X4:2 (N), X4:3 (control) and X4:4 (L) onthe base board (AA2).

654321

SMO

Externt

N L

External

SMO 20

QN10

AA2-X4

LEK

L N 1 1 0 2 3 4PE

AA2-X4

NIBE Uplink™Connect the network connected cable (straight, Cat.5eUTP) with RJ45 contact (male) to contact AA4-X9 on thedisplay unit (as illustrated). Use the cable grommet (UB2)in the control module for cable routing.

LEK

AA4-X9


External connection optionsOn terminal block X2, SMO 20 has software controlledinputs and outputs for connection of sensors and extern-al switch function. This means that a sensor or an externalswitch function can be connected to one of six specialconnections where the function for connection is determ-ined in the control module software.

Caution

If an external switch contact function is connec-ted to SMO 20, the function for use input oroutput must be selected in menu 5.4.

Selectable inputs terminal block X2 for these functionsare AUX1 (X2:11), AUX2 (X2:12), AUX3 (X2:13), AUX4(X2:15), AUX5 (X2:16) and AUX6 (X2:17). Earth is connec-ted to terminal block X2:14 or X2:18 (see electrical wiringdiagram for more information).

Selectable output is terminal block X4:15-17 on the baseboard (AA2.

block heating

activate temp lux

not used

soft in/outputs5.4

not used

not used

not used

B

SMO Externt

13

14

15

10

12

11

A

ExternalSMO 20

X2

LEK

L N 1 1 0 2 3 4PE

21

20

19

18

17

16

15

14

13

12

11

10

98

76

54

32

1

X2

5

6

7

2

1

8

9

13

12

4

3

11

10

19

20

21

14

18

16

17

15

The example above uses the inputs AUX1 (X2:11) and AUX3 (X2:13)on terminal block X2.

Caution

Some of the following functions can also be ac-tivated and scheduled via menu settings.

Possible selection for AUX inputsFollowing functions can be connected to the AUX inputson terminal block X2.

These functions are then selected in menu 5.4. Use atwin core cable with a cable area of at least 0.5 mm².■ Temperature sensor, cooling/heating

If a particular room will determine how the whole in-stallation will work, a room sensor ((BT74) is used. Ifroom sensor (BT74) is connected to SMO 20, room

sensor (BT74) determines when it is time to switchbetween cooling and heating operation for the wholeinstallation.

The alternative only applies if accessories for coolingare present or if the heat pump has the integratedcooling function.

■ Temperature sensor, external return line

If temperature sensor, external return line (BT71) needsto be used, connect it to selected input (menu 5.4, seepage 40) on terminal block X2. Use a 2 core cable witha cable area of at least 0.5 mm².

■ Temperature sensor, flow line cooling

In cases where the active cooling 4 pipe system func-tion is used on the AUX output, a temperature sensorsupply line cooling (BT64) must be connected toSMO 20. The alternative is only shown if the coolingfunction in the heat pump has been activated.

■ Contact for external tariff blocking

In cases where external tariff blocking is required itmust be connected to terminal block X2.

Tariff blocking means that the additional heat, thecompressor, heating and cooling are disconnected byconnecting a potential-free switch function to the in-put selected in menu 5.4.

A closed contact results in the electrical output beingdisconnected.

■ Switch for "SG ready"

NOTE

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

"SG Ready" requires two AUX inputs.

In cases where this function is wanted it must be connec-ted to terminal block X2.

"SG Ready" is a smart form of tariff control where yourelectricity supplier can affect the indoor and hot watertemperatures or simply block the additional heat and/orthe compressor in the heat pump at certain times of theday (can be selected in menu 4.1.5 after the function isactivated). Activate the function by connecting potential-free switch functions to two inputs selected in menu 5.4(SG Ready A and SG Ready B), see page 40.

Closed or open switch means one of the following:– Blocking (A: Closed, B: Open)

"SG Ready" is active. The compressor in the heat pumpand additional heat is blocked like the day's tariffblocking.

– 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 sav-ings and can for example exploit a low tariff from theelectricity supplier or over-capacity from any ownpower source (effect on the system can be adjustedin the menu 4.1.5).


– Overcapacity mode (A: Closed, B: Closed)

"SG Ready" is active. The system is permitted to run atfull capacity at over capacity (very low price) with theelectricity supplier (effect on the system is settable inmenu 4.1.5).

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

■ Contact for activation of “temporary lux"

An external switch function can be connected toSMO 20 to activate the hot water function "temporarylux". The switch must be potential-free and connectedto the selected input (menu 5.4) on terminal block X2.

"temporary lux" is activated for the time that the con-tact is connected.

■ Contact for activation of “external adjustment"

An external contact function can be connected toSMO 20 to change the supply temperature and theroom temperature.

When the switch is closed the temperature changesin °C (if the room sensor is connected and activated).If a room sensor is not connected or not activated thedesired change of "temperature" (heating curve offset)with the number of steps selected is set. The value canbe set between -10 and +10 .– climate system 1

The switch must be potential-free and connected tothe selected input (menu 5.4) on terminal block X2.

The value for the change is set in menu 1.9.2, "extern-al adjustment".

■ Switch for external alarm

Alarms from external devices can be connected to thecontrol and appear as an info alarm. Potential-freesignal of NO or NC type can be connected.

Switch for external blocking of

In those cases where external blocking of the functionis desired, this can be connected to terminal block X2.

The function is disconnected by connecting a potential-free switch function to the input selected in menu 5.4.

A closed contact results in the function being disconnec-ted.

Functions that can be blocked:■ addition

■ compressor in heat pump EB101

■ heating

■ cooling

■ hot water

Possible selection for AUX output (potentialfree variable relay)It is possible to have an external connection through therelay function via a potential-free switching relay (max2 A A at resistive load) on terminal block X4:15-17 onthe base board (AA2).

Optional functions for external connection:■ Indication of buzzer alarm. The function gives signals

whilst a constant alarm is indicated by the controlmodule.

■ Cooling mode indication. This option requires activa-tion of some form of cooling function. The functiongives signals when the system permits cooling and canbe used to control external pumps for example.

■ Active cooling (4 pipe) This option requires activationof some form of cooling function and can be used forsimple 4-pipe systems (an outdoor unit). The functiongives signals when a connected heat pump producescooling and there are no other demands and coolingis permitted. This function can be used to control re-versing valve for cooling EP25-QN12.

Caution

With this option, the charge pump (GP12) isalways controlled in "auto" operating mode,which means that the pump is running whenthe reversing valve (QN12) is towards thecooling system.

■ External heating medium pump. The function givessignals when an external circulation pump (GP10) isto be operated according to settings for the operatingmode.

■ Control of circulation pump for hot water circulation.The function gives signals when a circulation pumpfor hot water circulation (GP11) is to be operated ac-cording to settings in menu "hot water recirc." (2.9.2).

If any of the above is installed to terminal block X4:15-17 on base board (AA2) the function must be selectedin menu 5.4

The common alarm is preselected at the factory.

17161514

SMO

ExterntExternal

SMO 20

AA2-X4

LEK

L N 1 1 0 2 3 4PE

AA2-X4

The picture shows the relay in the alarm position.

When switch (SF1) is in the " " or " " position the relayis in the alarm position.


Hot water circulation pump or external heating mediumpump is connected to the AUX output, as illustrated be-low.

NOTE


17161514

SMO

Externt

L

L

N

N

PEPE

External

SMO 20

AA2-X4

LEK

L N 1 1 0 2 3 4PE

AA2-X4

The reversing valve for cooling is connected to the AUXoutput, as illustrated below.

17161514

SMO

Externt

L

L

N

N

External

SMO 20

AA2-X4

LEK

L N 1 1 0 2 3 4PE

AA2-X4

Caution

The relay outputs may be subjected to a maxload of 2 A at resistive load (230V AC).

Connecting accessoriesInstructions for connecting other accessories are in theinstallation instructions provided. See page 48 for a listof those accessories that can be used for SMO 20.


Preparations■ Compatible NIBE air/water heat pump must be

equipped with a control board that has at least thesoftware version as listed on page9. The control boardversion is displayed in the heat pump's display (if ap-plicable) upon start-up.

■ SMO 20 must be ready-connected.

■ The climate system must be filled with water and bled.

Commissioning with NIBEair/water heat pump

NIBE F2015 / F2020 / F2025■ Follow the instructions in the heat pump's Installation

and Maintenance under section "Commissioning andadjustment" – "Start-up and inspection".

NIBE F2016 / F2026 / F2030 / F2040 / F2120/ F2300■ Follow the instructions in the heat pump's Installer

Manual under section "Commissioning and adjust-ment" – "Start-up and inspection".

SMO 201. Power the heat pump.2. Power SMO 20.3. Follow the start guide in the display on SMO 20 al-

ternatively start the start guide in menu 5.7.

Commissioningwith additionalheating onlyAt first start follow the start guide, otherwise follow thelist below.1. Go to menu 4.2 op. mode.2. Mark ”add. heat only” using the control knob and

then press the OK button.3. Return to the main menus by pressing the Back

button.

Caution

When commissioning without NIBE air/waterheat pump an alarm communication error mayappear in the display.

The alarm is reset if the relevant heat pump isdeactivated in menu 5.2.2 ("installed heatpump").

Check the reversing valve1. Activate "AA2-K1 (QN10)" in menu 5.6.2. Check that the reversing valve opens or is open for

hot water charging.3. Deactivate "AA2-K1 (QN10)" in menu 5.6.

Check AUX socketTo check any function connected to the AUX socket1. Activate "AA2-X4" in menu 5.6.2. Check the desired function.3. Deactivate "AA2-X4" in menu 5.6.

Cooling modeIf the installation contains a NIBE air/water heat pumpthat can produce cooling (NIBE F2040 or F2120) coolingcan be permitted. See relevant Installer Manual.

When cooling operation is permitted you can choosecooling mode indication in menu 5.4 for the AUX output.

When cooling operation is permitted you can choosecooling mode indication in menu 5.4 for the AUX output.

25Chapter 6 | Commissioning and adjustingSMO 20

6 Commissioning and adjusting

Start guideNOTE

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

1. Set the control module's switch (SF1) to "".2. Follow the instructions in the start guide in the con-

trol module display. If the start guide does not startwhen you start the control module, start it manuallyin menu 5.7.

TIP

See page 31 for a more in-depth introductionto the installation’s control system (operation,menus etc.).

CommissioningThe first time the installation is started a start guide isstarted. The start guide instructions state what needs tocarried out at the first start together with a run throughof the installation’s basic settings.

The start guide ensures that start-up is carried out cor-rectly and cannot be bypassed.The start guide can bestarted later in menu 5.7.

During the start-up guide, the reversing valves and theshunt are run back and forth to help vent the heat pump.

Caution

As long as the start guide is active, no functionin SMO 20 will start automatically.

The guide will appear at each restart of SMO 20,until it is deselected on the last page.

Operation in the start guide

language4.6

If the start guide is left on this page it closesautomatically in

60 min

A.Page

C. Option / setting

B. Name and menu number

A. Page

Here you can see how far you have come in the startguide.

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 beenmarked.

2. Press the OK button to skip between the pages inthe start guide.

B. Name and menu number

Read what menu in the control system this page of thestart guide is based on. The digits in brackets refer to themenu number in the control system.

If you want to read more about affected menus eitherconsult the help menu or read the user manual.

C. Option / setting

Make settings for the system here.

D. Help menu

In many menus there is a symbol that indicates thatextra 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 youcan scroll between using the control knob.

SMO 20Chapter 6 | Commissioning and adjusting26

Setting the cooling/heatingcurve

heating curve 1.9.1.1system

outdoor temp. °C

flow temperature °C

cooling curve 1.9.1.2

system

outdoor temp. °C

flow temperature °C

heating curveSetting range: 0 – 15

Default value: 9

cooling curve (accessory required)Setting range: 0 – 9

Default value: 0

The prescribed heating curve for your house can beviewed in the menu heating curve . The task of theheating curve is to give an even indoor temperature, re-gardless of the outdoor temperature, and thereby energyefficient operation. It is from this heating curve that thecontrol module's control computer determines thetemperature of the water to the heating system, supplytemperature, and therefore the indoor temperature.Select the heating curve and read off how the supplytemperature changes at different outdoor temperatureshere. If there is access to cooling the same settings canbe made for the cooling curve.

Curve coefficientThe slopes of the heating /cooling curves indicate howmany degrees the supply temperature is to be in-creased/reduced when the outdoor temperaturedrops/increases. A steeper slope means a higher supplytemperature for heating or a lower supply temperaturefor cooling at a certain outdoor temperature.

30

40

50

60

70

°C

FR

AM

LE

DN

ING

ST

EM

PE

RA

TU

R

- 40°C

UTETEMPERATUR

- 10010 - 20 - 30

Brantare kurvlutning

Supply temperature

Outdoor temperature

Steeper curve slope

The optimum slope depends on the climate conditionsin your location, if the house has radiators or under floorheating and how well insulated the house is.

The curve is set when the heating installation is installed,but may need adjusting later. Normally, the curve willnot need further adjustment.

Caution

When making fine adjustments of the indoortemperature, the curve must be offset up ordown instead, this is done in menu 1.1 temper-ature .

Curve offsetAn offset of the curve means that the supply temperaturechanges by the same amount for all the outdoor temper-atures, e.g. that a curve offset of +2 steps increases thesupply temperature by 5 °C at all outdoor temperatures.

Flow line temperature– maximum andminimum valuesBecause the flow line temperature cannot be calculatedhigher than the set maximum value or lower than theset minimum value the heating curve flattens out atthese temperatures.

Caution

Under floor heating systems are normally maxflow line temperature set to between 35 and45 °C.

Must be restricted with underfloor cooling min.flow line temp. to prevent condensation.

Check the max temperature for your floor withyour installer/floor supplier.

The figure at the end of the curve indicates the curveslope. The figure beside the thermometer gives the curveoffset. Use the control knob to set a new value. Confirmthe new setting by pressing the OK button.

Curve 0 is an own curve created in menu 1.9.7.

To select another curve (slope):1. Press the OK button to access the setting mode2. Select a new curve. The curves are numbered from

0 to 15, the greater the number, the steeper theslope and the greater the supply temperature. Curve0 means that own curve (menu 1.9.7) is used.

3. Press the OK button to exit the setting.


To read off a 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 temperatureat the selected outdoor temperature.

4. You can now select to take read outs for differentoutdoor temperatures by turning the control knobto the right or left and read off the correspondingflow temperature.

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

TIP

Wait 24 hours before making a new setting, sothat the room temperature has time to stabilise.

If it is cold outdoors and the room temperatureis too low, increase the curve slope by one incre-ment.

If it is cold outdoors and the room temperatureis too high, lower the curve slope by one incre-ment.

If it is warm outdoors and the room temperatureis too low, increase the curve offset by one incre-ment.

If it is warm outdoors and the room temperatureis too high, lower the curve offset by one incre-ment.


Setting hot water circulation

hot water recirc.

operating time

Setting range: 1 - 60 min

Default value: 60 min

downtime

Setting range: 0 - 60 min

Default value: 0 min

Set the hot water circulation for up to three periods perday here. During the set periods the hot water circulationpump will run according to the settings above.

"operating time" decide how long the hot water circula-tion pump must run per operating instance.

"downtime" decide how long the hot water circulationpump must be stationary between operating instances.

Hot water circulation is activated in menu 5.4 "soft inputsand outputs".


SG Ready

SG ReadyThis function can only be used in mains networks thatsupport the "SG Ready"-standard .

Make settings for the function "SG Ready" here.

Low price mode means that the electricity supplier hasa low tariff and the system uses this to reduce costs.

Over capacity mode means that the electricity supplierhas set the tariff very low and the system uses this to re-duce the costs as much as possible.

affect room temperature

Here you set whether room temperature should be af-fected when activating "SG Ready".

With low price mode of "SG Ready" the parallel offsetof the indoor temperature is increased by "+1". If a roomsensor is installed and activated, the desired room tem-perature increases by 1 °C.

With over capacity mode of "SG Ready" the parallel offsetfor the indoor temperature is increased by"+2". If a roomsensor is installed and activated, the desired room tem-perature increases by 2 °C.

affect hot water

Here you set whether the temperature of the hot watershould be affected when activating "SG Ready".

With low price mode on "SG Ready" the stop temperat-ure of the hot water is set as high as possible at onlycompressor operation (immersion heater not permitted).

With over capacity mode of "SG Ready" the hot water isset to "luxury" (immersion heater permitted).

affect cooling (accessory required)

Here you set whether room temperature during coolingoperation should be affected when activating "SGReady".

With low price mode of "SG Ready" and cooling opera-tion the indoor temperature is not affected.

With over capacity mode on "SG Ready" and coolingoperation, the parallel offset for the indoor temperatureis reduced by "-1". If a room sensor is installed and activ-ated instead, the desired room temperature is reducedby 1 °C

NOTE

The function must be connected to two AUXinputs and activated in menu 5.4.


Display unit

A

B

C

D

E

F

Display

Status lamp

OK button

Back button

Control knob

Switch

INDOOR CLIMATE

HOT WATER

INFO

HEAT PUMP

SMO 20 G USB port

Display

Instructions, settings and operational informationare shown on the display. You can easily navigatebetween the different menus and options to setthe comfort or obtain the information you re-quire.

A

Status lamp

The status lamp indicates the status of the controlmodule. It:

■ lights green during normal operation.

■ lights yellow in emergency mode.

■ lights red in the event of a deployed alarm.

B

OK button

The OK button is used to:

■ confirm selections of sub menus/options/setvalues/page in the start guide.

C

Back button

The back button is used to:

■ go back to the previous menu.

■ change a setting that has not been confirmed.

D

Control knob

The control knob can be turned to the right orleft. You can:

■ scroll in menus and between options.

■ increase and decrease the values.

■ change page in multiple page instructions (forexample help text and service info).

E

Switch (SF1)

The switch assumes three positions:

■ On ()

■ Standby ( )

■ Emergency mode ( )

Emergency mode must only be used in the eventof a fault on the control module. In this mode,the compressor in the heat pump switches offand the immersion heater engages. The controlmodule display is not illuminated and the statuslamp illuminates yellow.

F

USB port

The USB port is hidden beneath the plastic badgewith the product name on it.

The USB port is used to update the software.

Visit www.nibeuplink.com and click the "Soft-ware" tab to download the latest software foryour installation.

G

31Chapter 7 | Control - IntroductionSMO 20

7 Control - Introduction

Menu system

INDOOR CLIMATE

HOT WATER

INFO

HEAT PUMP

SERVICE

Indoor temperature -(if room sensors areinstalled)

Hot water temp.

Temporary lux (ifactivated)

Outdoortemperature

Estimated amount ofhot water

Menu 1 - INDOOR CLIMATESetting and scheduling the indoor climate. See informa-tion in the help menu or user manual.

Menu 2 - HOT WATERSetting and scheduling hot water production. See inform-ation in the help menu or user manual.

This menu only appears if a water heater is installed inthe system.

Menu 3 - INFODisplay of temperature and other operating informationand access to the alarm log. See information in the helpmenu or user manual.

Menu 4 - MY SYSTEMSetting time, date, language, display, operating modeetc. See information in the help menu or user manual.

Menu 5 - SERVICEAdvanced settings. These settings are not available tothe end user. The menu is visible when the Back buttonis pressed for 7 seconds, when you are in the start menu.See page 38.

Symbols in the displayThe following symbols can appear in the display duringoperation.

DescriptionSymbol

This symbol appears by the informationsign if there is information in menu 3.1 thatyou should note.

These two symbols indicate whether thecompressor in the outdoor unit or addition-al heat in the installation is blocked viaSMO 20.

These can, for example, be blocked depend-ing on which operating mode is selectedin menu 4.2, if blocking is scheduled inmenu 4.9.5 or if an alarm has occurred thatblocks one of them.

Blocking the compressor.

Blocking additional heat.

This symbol appears if periodic increase orlux mode for the hot water is activated.

This symbol indicates whether "holidaysetting" is active in 4.7.

This symbol indicates whether SMO 20 hascontact with NIBE Uplink.

This symbol indicates whether cooling isactive.

Heat pump with cooling function required.

SMO 20Chapter 7 | Control - Introduction32

INDOOR CLIMATE

HOT WATER

INFO

HEAT PUMP

temperature

INDOOR CLIMATE 1

advanced

scheduling off

Marked mainmenu

Menu number – marked sub menu Name and menu number – main menu

Symbol –main menu

Status information – submenus

Name – sub menusSymbols – sub menus

OperationTo move the cursor, turn the control knob tothe left or the right. The marked position isbrighter and/or has a light frame.

Selecting menuTo advance in the menu system select a main menu bymarking it and then pressing the OK button. A newwindow then opens with sub menus.

Select one of the sub menus by marking it and thenpressing the OK button.

Selecting options

economy

comfort mode2.2

normal

luxury

Alternative

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

To select another option:1. Mark the applicable option. One of the options

is pre-selected (white).2. Press the OK button to confirm the selected op-

tion. The selected option has a green tick.

Setting a value

time & date4.4time

day

year

month

24 h

12 h

date

Values to be changed

To set a value:1. Mark the value you want to set using the con-

trol knob.2. Press the OK button. The background of the

value becomes green, which means that youhave accessed the setting mode.

3. Turn the control knob to the right to increasethe value and to the left to reduce the value.

4. Press the OK button to confirm the value youhave set. To change and return to the originalvalue, press the Back button.

33Chapter 7 | Control - IntroductionSMO 20

Use the virtual keyboard

Different keyboards

In some menus where text may require entering, a virtualkeyboard is available.

Depending on the menu, you can gain access to differentcharacter sets which you can select using the controlknob. To change character table, press the Back button.If a menu only has one character set the keyboard isdisplayed directly.

When you have finished writing, mark "OK" and pressthe OK button.

Scroll through the windowsA menu can consist of several windows. Turn the controlknob to scroll between the windows.

Current menuwindow

Number of windowsin the menu

Scroll through the windows in the start guide

language4.6

If the start guide is left on this page it closesautomatically in

60 min

Arrows to scroll through window in start guide

1. Turn the control knob until one of the arrows in thetop left corner (at the page number) has beenmarked.

2. Press the OK button to skip between the steps in thestart guide.

Help menuIn many menus there is a symbol that indicates thatextra 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 youcan scroll between using the control knob.

SMO 20Chapter 7 | Control - Introduction34

Menu 1 - INDOOR CLIMATE1.1.1 - heating1.1 - temperature1 - INDOOR CLIMATE

1.1.2 - cooling *

1.3.1 - heating1.3 - scheduling

1.3.2 - cooling *

1.9.1.1 heating curve1.9.1 - curve1.9 - advanced

1.9.1.2 - cooling curve *

1.9.2 - external adjustment

1.9.3.1 - heating1.9.3 - min. flow line temp.

1.9.3.2 - cooling *

1.9.4 - room sensor settings

1.9.5 - cooling settings *

1.9.7.1 - heating1.9.7 - own curve

1.9.7.2 - cooling *

1.9.8 - point offset

* Heat pump with cooling function required.

35Chapter 8 | ControlSMO 20

8 Control

Menu 2 - HOT WATER2.1 - temporary lux2 - HOT WATER

2.2 - comfort mode

2.3 - scheduling

2.9.1 - periodic increase2.9 - advanced

2.9.2 - hot water recirc. *

Menu 3 - INFO3.1 - service info3 - INFO

3.2 - compressor info

3.3 - add. heat info

3.4 - alarm log

3.5 - indoor temp. log

* Accessories are needed.

SMO 20Chapter 8 | Control36

Menu 4 - MY SYSTEM4.1.3.1 - NIBE Uplink4.1.3 - internet4.1 - plus functions4 - MY SYSTEM

4.1.3.8 - tcp/ip settings

4.1.3.9 - proxy settings

4.1.5 - SG Ready

4.1.6 - smart price adaption™

4.1.7 - smart home

4.2 - op. mode

4.3 - my icons

4.4 - time & date

4.6 - language

4.7 - holiday setting

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

4.9.5 - schedule blocking

4.9.6 - schedule silent mode


Menu 5 - SERVICE

Overview5.1.1 - hot water settings *5.1 - operating settings5 - SERVICE

5.1.2 - max flow line temperature

5.1.3 - max diff flow line temp.

5.1.4 - alarm actions

5.1.12 - addition

5.1.14 - flow set. climate system

5.1.22 - heat pump testing

5.1.23 - compressor curve

5.2.2 - installed heat pump5.2 - system settings

5.2.4 - accessories

5.4 - soft in/outputs

5.5 - factory setting service

5.6 - forced control

5.7 - start guide

5.8 - quick start

5.9 - floor drying function

5.10 - change log

5.11.1.1 - heat pump5.11 -heat pump settings

5.11.1.2 - charge pump(GP12)

5.12 - country

* Accessory needed.

Go to the main menu and hold the Back button in for 7seconds to access the Service menu.

Sub-menus

Menu SERVICE has orange text and is intended for theadvanced user. This menu has several sub-menus. Statusinformation for the relevant menu can be found on thedisplay to the right of the menus.

operating settings Operating settings for the controlmodule.

system settings System settings for the control module,activating accessories etc.

soft in/outputs Setting software controlled in and out-puts on the input card (AA3) and terminal block (X2).

factory setting service Total reset of all settings (includ-ing settings available to the user ) to default values.

forced control Forced control of the different compon-ents in the indoor module.

start guide Manual start of the start guide which is runthe first time when the control module is started.

quick start Quick starting the compressor.

NOTE

Incorrect settings in the service menus candamage the installation.

Menu 5.1 - operating settingsOperating settings can be made for the control modulein the sub menus.

Menu 5.1.1 - hot water settings

economy

Setting range start temp. economy: 5 – 55 °C

Factory setting start temp. economy: 42 °C

Setting range stop temp. economy: 5 – 60 °C

Factory setting stop temp. economy: 48 °C

normal

Setting range start temp. normal: 5 – 60 °C

Factory setting start temp. normal: 46 °C

Setting range stop temp. normal: 5 – 65 °C

Factory setting stop temp. normal: 50 °C

luxury

Setting range start temp. lux: 5 – 70 °C

Factory setting start temp. lux: 49 °C

Setting range stop temp. lux: 5 – 70 °C

Factory setting stop temp. lux: 53 °C


stop temp. per. increase

Setting range: 55 – 70 °C

Factory setting: 55 °C

charge method

Setting range: target temp, delta temp

Default value: delta temp

Here you set the start and stop temperature of the hotwater for the different comfort options in menu 2.2 aswell as the stop temperature for periodic increase inmenu 2.9.1.

The charge method for hot water mode is selected here."delta temp" is recommended for heaters with chargecoil, "target temp" for heaters with domestic coil.

Menu 5.1.2 - max flow line temperature

climate system

Setting range: 5-70 °C

Default value: 60 °C

Set the maximum supply temperature for the climatesystem here.

Caution

Underfloor heating systems are normally maxflow line temperature set between 35 and 45°C.

Check the max floor temperature with your floorsupplier.

Menu 5.1.3 - max diff flow line temp.

max diff compressor



max diff addition



Here you set the maximum permitted differencebetween the calculated and actual supply temperatureduring compressor respectively add. heat mode. Maxdiff. additional heat can never exceed max diff. com-pressor

max diff compressor

When the current supply temperature deviates fromthe set value compared to that calculated, the heat pumpis forced to stop irrespective of the degree-minute value.

If the current supply temperatureexceeds the calculatedflow with set value, the degree minute value is set to 0.The compressor in the heat pump stops when there isonly a heating demand.

max diff addition

If "addition” is selected and activated in menu 4.2 andthe present supply temp exceeds the calculated withset value, the additional heat is forced to stop.

Menu 5.1.4 - alarm actionsSelect how you want the control module to alert youthat there is an alarm in the display here. The differentalternatives are; the heat pump stops producing hotwater and/or reduces the room temperature.

Caution

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

Menu 5.1.12 - addition

max step

Setting range (binary stepping deactivated): 0 – 3

Setting range (binary stepping activated): 0 – 7

Default value: 3

fuse size

Setting range: 1 - 200 A

Factory setting: 16 A

Here you select whether the step controlled additionalheat is positioned before or after the reversing valve forhot water charging (QN10). Step controlled additionalheat is for example an external electric boiler.

Here you can set the max permitted number of additionalheat steps and binary or linear stepping. When binarystepping is deactivated (off), the settings refer to linearstepping.

If accessory hot water is available and additional heatlocation is selected to "after QN10" the number of stepsare restricted to 2 steps linear or 3 steps binary. OutputAA7-X2:5-6 is reserved in this mode for additional heatin the hot water tank.

You can also set the fuse size.

TIP

See the accessory installation instructions forfunction description.


Menu 5.1.14 - flow set. climate system

presettings

Setting range: radiator, floor heat., rad. + floor heat.,DOT °C

Default value: radiator

Setting range DOT: -40.0 – 20.0 °C

The factory setting of DOT value depends on thecountry that has been given for the product's location.The example below refers to Sweden.

Factory setting DOT: -20.0 °C

own setting

Setting range dT at DOT: 0.0 – 25.0

Factory setting dT at DOT: 10.0

Setting range DOT: -40.0 – 20.0 °C

Factory setting DOT: -20.0 °C

The type of heating distribution system the heatingmedium pump works towards is set here.

dT at DOT is the difference in degrees between flow andreturn temperatures at dimensioned outdoor temperat-ure.

Menu 5.1.22 - heat pump testing

NOTE

This menu is intended for testing SMO 20 accord-ing to different standards.

Use of this menu for other reasons may resultin your installation not functioning as intended.

This menu contains several sub-menus, one for eachstandard.

Menu 5.1.23 - compressor curve

NOTE

This menu is only displayed if SMO 20 is connec-ted to a heat pump with inverter controlledcompressor.

Set whether the compressor in the heat pump shouldwork to a particular curve under specific requirementsor if it should work to predefined curves.

You set a curve for a demand (heat, hot water, coolingetc.) by unticking "auto", turning the control knob untila temperature is marked and pressing OK. You can nowset at what temperature max- respectively min frequen-cies will occur.

This menu can consist of several windows (one for eachavailable demand), use the navigation arrows in the topleft corner to change between the windows.

Menu 5.2 - system settingsMake different system settings for your installation here,e.g. activate the connected heat pump and which ac-cessories are installed.

Menu 5.2.2 - installed heat pumpIf a heat pump is connected to the master installation,set it here.

Menu 5.2.4 - accessoriesSet which accessories are installed on the installationhere.

If the water heater is connected to SMO 20 hot watercharging must be activated here.

Menu 5.4 - soft in/outputsHere you can select to which in/output on the terminalblock (X2) external switch function (page 22) must beconnected.

Selectable inputs on terminal blocks AUX1-6 (X2:11-18and output AA2-X4.

Menu 5.5 - factory setting serviceAll settings can be reset (including settings available tothe user) to default values here.

NOTE

When resetting, the start guide is displayed thenext time the control module is restarted.

Menu 5.6 - forced controlYou can force control the different components in thecontrol module and any connected accessories here.

Menu 5.7 - start guideWhen the control module is started for the first time thestart guide starts automatically. Start it manually here.

See page 26 for more information about the start guide.

Menu 5.8 - quick startIt is possible to start the compressor from here.

Caution

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

Caution

Do not quick start the compressor too manytimes over a short period of time as this maydamage the compressor and its surroundingequipment.


Menu 5.9 - floor drying function

length of period 1 – 7

Setting range: 0 – 30 days

Factory setting, period 1 – 3, 5 – 7: 2 days

Factory setting, period 4: 3 days

temp. period 1 – 7


Default value:20 °Ctemp. period 130 °Ctemp. period 240 °Ctemp. period 345 Ctemp. period 440 °Ctemp. period 530 °Ctemp. period 620 °Ctemp. period 7

Set the function for under floor drying here.

You can set up to seven period times with different cal-culated flow temperatures. If less than seven periods areto be used, set the remaining period times to 0 days.

Mark the active window to activate the underfloor dryingfunction. A counter at the bottom shows the number ofdays the function has been active.

TIP

If operating mode "add. heat only" is to be used,select it in menu 4.2.

Menu 5.10 - change logRead off any previous changes to the control systemhere.

The date, time and ID no. (unique to certain settings)and the new set value is shown for every change.

NOTE

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

Menu 5.11 - heat pump settingsSettings for installed heat pump can be made in thesubmenus.

Menu 5.11.1.1 - heat pumpMake settings for the installed heat pump here. To seewhat settings you can make, see installation manual forthe heat pump.

Menu 5.11.1.2 - charge pump (GP12)

op. mode

Heating/cooling

Setting range: auto / intermittent

Default value: auto

Set the operating mode for the charge pump here.

auto: The charge pump runs according to the currentoperating mode for SMO 20.

intermittent: The charge pump starts and stops 20seconds before and after the compressor in the heatpump.

speed during operation

heating, hot water, cooling

Setting range: auto / manual

Default value: auto

Manual setting

Setting range: 1–100 %

Default values: 70 %

speed in wait mode



max. allowed speed



Set the speed at which the charge pump is to operatein the present operating mode. Select "auto" if the speedof the charge pump is to be regulated automatically(factory setting) for optimal operation.

If "auto" is activated for heating operation, you can alsomake the setting "max. allowed speed" which restrictsthe charge pump and does not allow it to run at a higherspeed than the set value.

For manual operation of the charge pump deactivate"auto" for the current operating mode and set the valueto between 1 and 100 % (the previously set value for"max. allowed speed" no longer applies).

Speed in standby mode (only used if "auto" has beenselected for "Operating mode") means the charge pumpoperates at the set speed during the time when there isneither a need for compressor operation nor additionalheat.


5.12 - countrySelect here where the product was installed. This allowsaccess to country specific settings in your product.

Language settings can be made regardless of this selec-tion.

NOTE

This option locks after 24 hours, restart of dis-play or program updating.


Service actionsNOTE

Servicing should only be carried out by personswith the necessary expertise.

When replacing components on SMO 20 onlyreplacement parts from NIBE may be used.

Emergency mode

NOTE

Switch (SF1) must not be put into mode "" orbefore the installation is filled with water.

The compressor in the heat pump can be dam-aged.

Emergency mode is used in event of operational interfer-ence and in conjunction with service. Hot water is notproduced in emergency mode.

Emergency mode is activated by setting switch (SF1) inmode " ". This means that:■ The status lamp illuminates yellow.

■ The display is not lit and the control computer is notconnected.

■ Hot water is not produced.

■ The compressors are switched off. Charge pump(EB101-GP12) is running.

■ The heating medium pump is active.

■ The emergency mode relay (K1) is active.

External additional heat is active if it is connected to theemergency mode relay (K1, terminal block X1). Ensurethat the heating medium circulates through the externaladditional heat.

Temperature sensor data

Voltage (VDC)Resistance(kOhm)

Temperature(°C)

3.256351.0-403.240251.6-353.218182.5-303.189133.8-253.15099.22-203.10574.32-153.04756.20-102.97642.89-52.88933.0202.78925.6152.67320.02102.54115.77152.39912.51202.24510.00252.0838.045301.9166.514351.7525.306401.5874.348451.4263.583501.2782.968551.1362.467601.0072.068650.8911.739700.7851.469750.6911.246800.6071.061850.5330.908900.4690.779950.4140.672100

43Chapter 9 | ServiceSMO 20

9 Service

USB service outlet

LEK

The display unit is equipped with a USB socket that canbe used to update the software, save logged informationand manage the settings in SMO 20.

INDOOR CLIMATE

HOT WATER

INFO

HEAT PUMP

USB

update firmware

USB 7

logging

manage settings

When a USB memory is connected a new menu (menu7) appears in the display.

Menu 7.1 - update firmware

update firmware7.1

start updating

choose another file

This allows you to update the software in SMO 20.

NOTE

For the following functions to work the USBmemory must contain files with software forSMO 20 from NIBE.

The fact box at the top of the display shows information(always in English) of the most probable update that theupdate software has selected form the USB memory.

This information states which product the software isintended for, the software version and general informa-tion about them. If you wish to select another file thanthe one selected, the correct file can be selected by"choose another file".

start updating

Select “start updating" if you want to start the update.You are asked whether you really want to update thesoftware. Respond "yes" to continue or "no" to undo.

If you responded"yes" to the previous question the up-date starts and you can now follow the progress of theupdate on the display. When the update is completeSMO 20 restarts.

NOTE

A software update does not reset the menusettings in SMO 20.

NOTE

If the update is interrupted before it is complete(for example power cut etc.), the software canbe reset to the previous version if the OK buttonis held in during start up until the green lampstarts to illuminate (takes about 10 seconds).

SMO 20Chapter 9 | Service44

choose another file

update firmware7.1

Select “choose another file" if you do not want to usethe suggested software. When you scroll through thefiles, information about the marked software is shownin a fact box just as before. When you have selected afile with the OK button you will return to the previouspage (menu 7.1) where you can choose to start the up-date.

Menu 7.2 - logging

logging7.2

activated

interval sec5

Setting range: 1 s – 60 min

Factory setting range: 5 s

Here you can choose how current measurement valuesfrom SMO 20 should be saved onto a log file on the USBmemory.1. Set the desired interval between loggings.2. Tick “activated".3. The present values from SMO 20 are saved in a file

in the USB memory at the set interval until “activ-ated" is unticked.

NOTE

Untick "activated" before removing the USBmemory.

Menu 7.3 - manage settings

manage settings 7.3

save settings

recover settings

Here you can manage (save as or retrieve from) all themenu settings (user and service menus) in SMO 20 witha USB memory.

Via "save settings" you save the menu settings to theUSB memory in order to restore them later or to copythe settings to another SMO 20.

NOTE

When you save the menu settings to the USBmemory you replace any previously saved set-tings on the USB memory.

Via "recover settings" you reset all menu settings fromthe USB memory.

NOTE

Reset of the menu settings from the USBmemory cannot be undone.

45Chapter 9 | ServiceSMO 20

In most cases, the control module notes a malfunctionand indicates this with alarms and shows instructions torectify it in the display. See "Manage alarm" for informa-tion about managing alarms. If the malfunction doesnot appear in the display, or if the display is not lit, thefollowing troubleshooting guide can be used.

Manage alarm

info / action

reset alarm

aid mode

Low pressure alarm

alarm

In the event of an alarm, some kind of malfunction hasoccurred, which is indicated by the status lamp changingfrom green continuously to red continuously. In addition,an alarm bell appears in the information window.

AlarmIn the event of an alarm with a red status lamp a malfunc-tion has occurred that the heat pump and/or controlmodule cannot remedy itself. In the display, by turningthe control knob and pressing the OK button, you cansee the type of alarm it is and reset it. You can alsochoose to set the installation to aid mode.

info / action Here you can read what the alarm meansand receive tips on what you can do to correct theproblem that caused the alarm.

reset alarm In most cases it is enough to select "resetalarm" to correct the problem that caused the alarm. Ifa green light illuminates after selecting "reset alarm" thealarm has been remedied. If a red light is still visible anda menu called ”alarm” is visible in the display, the prob-lem that caused the alarm remains. If the alarm disap-pears and then returns, see the troubleshooting section(page 46).

aidmode ”aid mode” is a type of emergency mode. Thismeans that the installation produces heat and/or hotwater despite there being some kind of problem. Thiscan mean that the heat pump's compressor is not run-ning. In this case any electrical addition produces heatand/or hot water.

NOTE

To select aid mode an alarm action must be se-lected in the menu 5.1.4.

Caution

Selecting "aid mode” is not the same as correct-ing the problem that caused the alarm. Thestatus lamp will therefore continue to be red.

TroubleshootingIf the operational interference is not shown in the displaythe following tips can be used:

Basic actionsStart by checking the following possible fault sources:■ The switch's (SF1) position.

■ Group and main fuses of the accommodation.

■ The property's earth circuit breaker.

■ The control module's miniature circuit breaker (FA1).

Low hot water temperature or a lack of hotwaterThis part of the fault-tracing chapter only applies if thewater heater is installed in the system.■ Closed or choked filling valve

(QM10) for the hot water.– Open the valve.

■ Mixing valve (if there is one installed) set too low.– Adjust the mixer valve.

■ Control module in incorrect operating mode.– If mode "manual" is selected, select "addition".

■ Large hot water consumption.– Wait until the hot water has heated up. Temporarily

increased hot water capacity (temporary lux) can beactivated in menu 2.1.

■ Too low hot water setting.– Enter menu 2.2 and select a higher comfort mode.

■ Too low or no operating prioritisation of hot water.– Enter menu 4.9.1 and increase the time for when

hot water is to be prioritised.

Low room temperature■ Closed thermostats in several rooms.

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

■ Control module in incorrect operating mode.– Enter menu 4.2. If mode "auto" is selected, select a

higher value on "stop heating" in menu 4.9.2.– If mode "manual" is selected, select "heating". If this

is not enough, select "addition".

■ Too low set value on the automatic heating control.– Enter menu 1.1 "temperature" and adjust the offset

heating curve up. If the room temperature is onlylow in cold weather the curve slope in menu 1.9.1"heating curve" needs adjusting up.

■ Too low or no operating prioritisation of heat.– Enter menu 4.9.1 and increase the time for when

heating is to be prioritised.

■ "Holiday mode" activated in menu 4.7.– Enter menu 4.7 and select "Off".

SMO 20Chapter 10 | Disturbances in comfort46

10 Disturbances in comfort

■ External switch for changing the room heating activ-ated.– Check any external switches.

■ Air in the climate system.– Vent the climate system.

■ (QM20), (QM32) to the climate system.

Closed valves to the climate system.

(QM40), (QM41) to the climate system.– Open the valves.

High room temperature■ Too high set value on the automatic heating control.

– Enter menu 1.1 (temperature) and reduce the offsetheating curve. If the room temperature is only highin cold weather the curve slope in menu 1.9.1"heating curve" needs adjusting down.

■ External switch for changing the room heating activ-ated.– Check any external switches.

Low system pressure■ Not enough water in the climate system.

– Top up the water in the climate system.

The compressor does not start■ There is no heating requirement.

– The heat pump does not call on heating nor hotwater.

■ Temperature conditions tripped.– Wait until the temperature condition has been reset.

■ Minimum time between compressor starts has notbeen reached.– Wait 30 minutes and then check if the compressor

has started.

■ Alarm tripped.– Follow the display instructions.

Additional heating onlyIf you are unsuccessful in rectifying the fault and areunable to heat the house, you can, whilst waiting forassistance, continue running the heat pump in ”add.heat only”. This means that additional heating only isused to heat the house.

Set the installation to additional heat mode1. Go to menu 4.2 op. mode.2. Mark ”add. heat only” using the control knob and

then press the OK button.3. Return to the main menus by pressing the Back

button.

Caution

When commissioning without NIBE air/waterheat pump an alarm communication error mayappear in the display.

The alarm is reset if the relevant heat pump isdeactivated in menu 5.2.2 ("installed heatpump").

47Chapter 10 | Disturbances in comfortSMO 20

Auxiliary relay HR 10Part no 067 309

Charge pump CPD 11Charge pump for heat pump

CPD 11-25/75

Part no. 067 320

CPD 11-25/65

Part no. 067 321

Connection box K11Connection box with thermostat and overheating protec-tion. (When connecting Immersion heater IU)

Part no. 018 893

External electric additional heat ELK

ELK 5Immersion heater

5 kW, 1 x 230 V

Part no. 069 025


8 kW, 1 x 230 V

Part no. 069 026


15 kW, 3 x 400 V

Part no. 069 022


26 kW, 3 x 400 V

Part no. 067 074


7-13 kW, 3 x 400 V

Part no. 069 500

Hot water control

VST 05Reversing valve, Cu pipe Ø22

Max heat pump size 8 kW

Part no. 089 882


(Max recommended output, 17 kW)

Part no. 089 152


(Max recommended output, 40 kW)

Part no 089 388

Immersion heater IU9 kW

Part no. 018 090

3 kW

Part no. 018 0846 kW

Part no. 018 088

Outdoor air heat pump

F20307 kW Part no. 064 099

9 kW Part no. 064 070

F2040F2040-8 Part no. 064 109

F2040-12 Part no. 064 092

F2040-16 Part no. 064 108

F2120F2120-8 1x230VPart no. 064 134

F2120-8 3x400VPart no. 064 135

F2120-12 1x230VPart no. 064 136

F2120-12 3x400VPart no. 064 137

F2120-16 3x400VPart no. 064 139

F2120-20 3x400VPart no. 064 141

SMO 20Chapter 11 | Accessories48

11 Accessories

F2300

14 kW Part no. 064 063

20 kW Part no. 064 064

NIBE SPLIT HBS 05AMS 10-8Part no. 064 033

AMS 10-12Part no. 064 110

AMS 10-16Part no. 064 035

HBS 05-12Part no.067 480

HBS 05 -16Part no. 067 536

Reversing valve for cooling

VCC 05

Part no. 067 311

VCC 11

Part no. 067 312

Room sensorRTS 40Part no. 067 065

Water heater/Accumulator tank

AHPSAccumulator tank with a solar coil (copper) and a combinedpre-heating and post-heating coil (stainless steel) for hotwater production.

Part no. 056 283

VPB 200Water heater with charge coil.

Placed to the left of SMO 20 for easy installation.Part no. 088 515CopperPart no. 088 517EnamelPart no. 088 518Stainless

steel

VPB 300Water heater with charge coil.

Part no. 083 009CopperPart no. 083 011EnamelPart no. 083 010Stainless

steel

VPB 500

Copper lined water heater with charge coil

Part no. 083 220

VPB 750-2

Copper lined water heater with charge coil

Part no. 083 231

VPB 1000Copper lined water heater with charge coil

Part no. 083 240

49Chapter 11 | AccessoriesSMO 20

Dimensions and setting-out coordinates

110

410

360

110

10

310

21570

35

SMO 20Chapter 12 | Technical data50

12 Technical data

Technical specifications

IP 21

SMO 20

Electrical data230V~ 50HzSupply voltage

IP21Enclosure class4kWRated value for impulse voltage2Pollution degree

Optional connections1Max number air/water heat pumps8Max number of sensors1Max number of charge pumps3Max number of outputs for additional heat step

Miscellaneous

Type 1Operation mode (EN60730)-25 – 70°CArea of operation5 – 35°CAmbient temperature1, 24Program cycles, hours

1, 2, 5, 7Program cycles, days1min.Resolution, program

Dimensions and weight360mmWidth110mmDepth410mmHeight4.3kgWeight, (without packaging and enclosed components)

067 224Part No.

51Chapter 12 | Technical dataSMO 20

Energy labellingNIBESupplier

SMO 20 + F2040 / F2120SMO 20 + F2030 / F2300Model

IIIIIController, class2.01.5%Controller, contribution to efficiency


Electrical circuit diagram


Item register

AAccessibility, electrical connection, 15Accessories, 48Alarm, 46

BBack button, 31

CCable lock, 16Commissioning and adjusting, 25

Commissioning with additional heating only, 25Commissioning with NIBE air/water heat pump, 25Cooling mode, 25Preparations, 25Setting hot water circulation, 29Setting the cooling/heating curve, 27SG Ready, 30Start guide, 26

Commissioning with additional heating only, 25Commissioning with NIBE air/water heat pump, 25Communication with heat pump, 18Connecting accessories, 24Connecting the charge pump for the heat pump, 17Connections, 17Contact for activation of “external adjustment", 23Contact for activation of “temporary lux", 23Contact for external tariff blocking, 22Contact information, 6Control, 31, 35

Control - Introduction, 31Control - Menus, 35

Control - Introduction, 31Display unit, 31Menu system, 32

Control knob, 31Control - Menus, 35

Menu 5 - SERVICE, 38Cooling mode, 25Cooling mode indication, 23

DDelivery and handling, 7

Mounting, 7Supplied components, 7

Dimensions and setting-out coordinates, 50Display, 31Display unit, 31

Back button, 31Control knob, 31Display, 31OK button, 31Status lamp, 31Switch, 31

Disturbances in comfort, 46Alarm, 46Manage alarm, 46Only additional heat, 47Troubleshooting, 46

Docking alternatives, 10

EElectrical circuit diagram, 53Electrical connections, 14

Accessibility, electrical connection, 15Cable lock, 16Communication with heat pump, 18Connecting accessories, 24Connecting the charge pump for the heat pump, 17

Connections, 17External circulation pump, 21External connection options, 22General, 14Miniature circuit-breaker, 14NIBE Uplink™, 21Optional connections, 20Outdoor sensor, 18Power connection, 17Relay output for emergency mode, 21Reversing valve, 21Room sensor, 20Step controlled additional heat, 20Temperature sensor, external flow line, 19Temperature sensor, external supply line after electric heater, 19Temperature sensor, hot water charging, 18

Energy labelling, 52External circulation pump, 21External connection options, 22

Contact for activation of “external adjustment", 23Contact for activation of “temporary lux", 23Contact for external tariff blocking, 22Cooling mode indication, 23Extra circulation pump, 23Hot water circulation, 23Possible selection for AUX inputs, 22Possible selection for AUX output (potential free variable re-lay), 23Switch for "Smart Grid ready", 22Switch for activation of external alarm, 23Switch for external blocking of function, 23Temperature sensor, cooling/heating, 22Temperature sensor, external flow line, 22Temperature sensor, flow line cooling, 22Temperature sensor, hot water top, 18

Extra circulation pump, 23

HHelp menu, 26, 34Hot water circulation, 23

IImportant information, 4

Recovery, 4Safety information, 4

Inspection of the installation, 5

MManage alarm, 46Marking, 4Menu 5 - SERVICE, 38Menu system, 32

Help menu, 26, 34Operation, 33Scroll through the windows, 34Selecting menu, 33Selecting options, 33Setting a value, 33Use the virtual keyboard, 34

Miniature circuit-breaker, 14Mounting, 7

NNIBE Uplink™, 21

OOK button, 31Only additional heat, 47Operation, 33Optional connections, 20

57Chapter 13 | Item registerSMO 20

13 Item register

Outdoor sensor, 18

PPipe connections, 9

Docking alternatives, 10General, 9Symbol key, 9

Possible selection for AUX inputs, 22Possible selection for AUX output (potential free variable relay), 23Power connection, 17Preparations, 25

RRelay output for emergency mode, 21Reversing valve, 21Room sensor, 20

SSafety information, 4

Contact information, 6Inspection of the installation, 5Marking, 4Serial number, 4Symbols, 4

Scroll through the windows, 34Selecting menu, 33Selecting options, 33Service, 43

Service actions, 43Service actions, 43

Standby mode, 43Temperature sensor data, 43USB service outlet, 44

Setting a value, 33Setting hot water circulation, 29Setting the cooling/heating curve, 27SG Ready, 30Standby mode, 43Start guide, 26Status lamp, 31Step controlled additional heat, 20Supplied components, 7Switch, 31Switch for "Smart Grid ready", 22Switch for activation of external alarm, 23Switch for external blocking of function, 23Symbol key, 9Symbols, 4

TTechnical data, 50

Dimensions and setting-out coordinates, 50Electrical circuit diagram, 53

Temperature sensor, cooling/heating, 22Temperature sensor, external flow line, 19, 22Temperature sensor, external supply line after electric heater, 19Temperature sensor, flow line cooling, 22Temperature sensor, hot water charging, 18Temperature sensor, hot water top, 18Temperature sensor data, 43The Control Module Design, 8

Component locations, 8List of components, 8

Troubleshooting, 46

UUSB service outlet, 44Use the virtual keyboard, 34

SMO 20Chapter 13 | Item register58

WS name: -GemensamtWS version: a182WS release date: 2016-04-22 09:12Publish date: 2016-06-02 18:48

NIBE AB Sweden

Hannabadsvägen 5Box 14 SE-285 21 [email protected]

231758

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