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Installer manual Control module NIBE SMO 20 IHB EN 2235-1 731315...
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Quick guide Navigation Ok button (confirm/select) Back button (back/undo/exit) Control knob (move/increase/reduce) A detailed explanation of the button functions can be found on page 30. How to scroll through menus and make different settings is described on page 32. Set the indoor climate temperature 1.1 INDOOR CLIMATE HOT WATER...
Connecting accessories 6 Commissioning and adjusting Preparations Commissioning Commissioning with additional heating only Check the reversing valve Check AUX socket Start-up and inspection Setting the cooling/heating curve 7 Control - Introduction Display unit Menu system NIBE SMO 20 Table of Contents...
Electrical installation and wiring must be carried out in accordance with national provisions. SMO 20 must be installed via an isolator switch. The cable area has to be dimen- sioned based on the fuse rating used. If the supply cable is damaged, only NIBE,...
Improper disposal of the product by the user results in ad- ministrative penalties in accordance with current legislation. Caution You need the product's (14 digit) serial number for servicing and support. NIBE SMO 20 Chapter 1 | Important information...
Shuttle valve AUX1 AUX2 AUX3 AUX4 AUX5 AUX6 AA2-X4 Miscellaneous Checking additional heater Checking the function of the reversing valve Checking charge pump function Completed installation check of heat pump and associated equipment Chapter 1 | Important information NIBE SMO 20...
System solutions COMPATIBLE PRODUCTS The following combinations of products are recommended for control by SMO 20. Control module Air/water heat Accumulator Addition pump HW control with hot water Circ. pump Water heater Volume vessel heater AMS 20-6 / HBS 20-6...
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Part no. 064 235 Part no. 067 668 AMS 20-10 HBS 20-10 Part no. 064 319 Part no. 067 819 Check the software version of compatible older NIBE air/water heat pumps, see page 11. Chapter 1 | Important information NIBE SMO 20...
Delivery and handling Mounting Removing the cover SMO 20 is a separate, electric control module and must be The cover of the control module is opened using a Torx 25 mounted on a wall. screwdriver. Assemble in the reverse order.
AUX inputs and heat pump Switch AA4-XF3 MISCELLANEOUS Serial number plate AA4-XF4 Cable grommet, incoming supply electricity, supply for accessories Cable grommet, communication Designations according to standard EN 81346-2. Chapter 3 | The Control Module Design NIBE SMO 20...
(l/s) Software version AMS 10-12/ 0.29 HBS 05-12 Compatible NIBE air/water heat pump has to be equipped AMS 10-16/ 0.39 with a control board that, as a minimum, has the software HBS 05-16 version given in the following list. The control board’s version is shown in the heat pump’s display (if applicable) at start-...
In installations with a particle filter, the filter is combined Water heater with an additional shut-off valve. • reversing valve. Hot water circulation If the system is to work with both a climate system and a water heater. Chapter 4 | Installing the installation NIBE SMO 20...
A climate system is a system that regulates the indoor Hot water production is activated in the start guide or in temperature with the help of the control system in SMO 20 menu 5.2. and, for example, radiators, underfloor heating, underfloor The settings for hot water are made in menu 5.1.1.
BUFFER VESSEL UKV A UKV is an accumulator tank that is suitable for connection SMO 20 can be installed in several different ways, some of to a heat pump or another external heat source, and it can which are shown here.
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In homes where you want separate cooling and heating systems, the accessory VCC 05 / VCC 11 can be connected. The installation is supplemented with a supply temperature sensor for cooling (BT64). -EP45 -EP45-GP10 -EQ1-BT64 NIBE SMO 20 Chapter 4 | Installing the installation...
The cover to access the base board is opened us- wiring. ing a Torx 25 screwdriver. • SMO 20 must be installed via an isolator switch. The cable area has to be dimensioned based on the fuse rating used. • Use a screened cable for communication with the heat pump.
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Secure the display on the panel. Lift the display unit from its mountings. CABLE LOCK Use a suitable tool to release/lock cables in the heat pump terminal blocks. Terminal block on circuit board NIBE SMO 20 Chapter 5 | Electrical connections...
POWER CONNECTION Connect circulation pump (EB101-GP12) to terminal block SMO 20 must be installed via an isolator switch with a min- X4:5 (PE), X4:6 (N) and X4:7 (230 V) on the base board (AA2) imum breaking gap of 3mm. Minimum cable area must be as illustrated.
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Connect the heat pump (EB101) to terminal blocks X2:19 (A), X2:20 (B) and X2:21 (GND) as illustrated. Connecting to the heat pump AA23-X4 F2030 F2030 F2016/F2026 F2016/F2026 F2015/F2020/F2025/F2300 F2015/F2020/F2025/F2300 AA21-J2 F2120 S2125/F2120 SMO 20 NIBE SMO 20 Chapter 5 | Electrical connections...
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TEMPERATURE SENSOR INSTALLATION ON ROOM SENSOR PIPE SMO 20 can be supplemented with a room sensor (BT50). The room sensor has a number of functions: Shows current room temperature in the display on SMO 20. Option of changing the room temperature in °C.
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A temperature sensor for hot water top (BT7) can be connec- sensors, see "Possible selection for AUX inputs" ted to SMO 20 to show the water temperature at the top of on page 24. the tank (if it is possible to install a sensor at the top of the tank).
If the relay is to be used for control voltage, bridge the supply from terminal block X1:1 to X1:2 and connect neutral and SMO 20 control voltage from the external additional heat to X1:0 (N) and X1:4 (L). External Externt Chapter 5 | Electrical connections NIBE SMO 20...
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SHUTTLE VALVE not used SMO 20 can be supplemented with an external reversing valve (QN10) for hot water control. (See page 47 for access- ory) For certain functions, accessories may be required. Hot water production can be selected in menu 5.2.4.
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(effect on the system is settable in menu 4.1.5). External activation of functions An external switch function can be connected to SMO 20 (A = SG Ready A and B = SG Ready B ) to activate various functions. The function is activated External blocking of functions during the time the switch is closed.
Instructions for connecting other accessories are in the in- cooling and hot water are disconnected) stallation instructions provided. See page 47 for a list of those accessories that can be used for SMO 20. Possible selections for AUX output Indications •...
SMO 20 Power the heat pump. Power SMO 20. 3. Follow the start guide in the display on SMO 20 alternat- ively start the start guide in menu 5.7. Commissioning with additional heating only At first start follow the start guide, otherwise follow the list below.
Set switch (SF1) on SMO 20 to position " ". Follow the instructions in the display’s start guide. If the start guide does not start when you start the SMO 20, you can start it manually in menu 5.7. If the start guide is left on this page it...
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Select the climate system (if more than one) for which minimum value, the curves flatten out at these temperat- the curve is to be changed. ures. Select curve and offset. Chapter 6 | Commissioning and adjusting NIBE SMO 20...
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5. Press the OK or Back button to exit read off mode. NIBE SMO 20 Chapter 6 | Commissioning and adjusting...
The USB port is hidden beneath the plastic badge with the product name on it. The USB port is used to update the software. Visit nibeuplink.com and click the "Software" tab to download the latest software for your installation. Chapter 7 | Control - Introduction NIBE SMO 20...
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This symbol appears if periodic increase or lux mode for the hot water is activated. This symbol indicates whether "holiday setting" is active in 4.7. This symbol indicates whether SMO 20 has contact with NIBE Uplink. This symbol is visible in installations with active solar accessories.
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Back button. Mark the applicable option. One of the options is pre-selected (white). Press the OK button to confirm the selected option. The selected option has a green tick. Chapter 7 | Control - Introduction NIBE SMO 20...
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(at the page number) has been marked. Press the OK button to skip between the steps in the start guide. If the start guide is left on this page it closes automatically in 60 min NIBE SMO 20 Chapter 7 | Control - Introduction...
2.9.2 - hot water recirc. * Menu 3 - INFO 3 - INFO 3.1 - service info 3.2 - compressor info 3.3 - add. heat info 3.4 - alarm log 3.5 - indoor temp. log NIBE SMO 20 Chapter 8 | Control...
Menu 4 - MY SYSTEM 4 - MY SYSTEM 4.1 - plus functions 4.1.3 - internet 4.1.3.1 - NIBE Uplink 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 Menu 4.1.10 –...
Incorrect settings in the service menus can dam- Setting range: target temp, delta temp age the installation. Default value: delta temp MENU 5.1 - OPERATING SETTINGS Operating settings can be made for the control module in the sub menus. NIBE SMO 20 Chapter 8 | Control...
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Select how you want the control module to alert you that there is an alarm in the display here. The different alternat- ives are; the heat pump stops producing hot water and/or reduces the room temperature. Chapter 8 | Control NIBE SMO 20...
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The ex- Set which accessories are installed on the installation here. ample below refers to Sweden. If the water heater is connected to SMO 20 hot water char- Factory setting DOT: -20.0 °C ging must be activated here.
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Set the operating mode for the charge pump here. Setting range: 15 – 70 °C auto: The charge pump runs according to the current oper- Default value: ating mode for SMO 20. temp. period 1 20 °C intermittent: The charge pump starts and stops 20 seconds temp.
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Caution This option locks after 24 hours, after restarting the display and during program updating. NIBE SMO 20 Chapter 8 | Control...
Service actions NOTE Servicing should only be carried out by persons with the necessary expertise. When replacing components on SMO 20 only re- placement parts from NIBE may be used. EMERGENCY MODE NOTE Switch (SF1) must not be put into mode " " or before the installation is filled with water.
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Respond "yes" to continue or "no" to undo. If you responded"yes" to the previous question the update INDOOR CLIMATE starts and you can now follow the progress of the update on the display. When the update is complete SMO 20 restarts. HOT WATER INFO HEAT PUMP A software update does not reset the menu set- tings in SMO 20.
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Here you can choose how current measurement values from memory in order to restore them later or to copy the settings SMO 20 should be saved onto a log file on the USB memory. to another SMO 20. Set the desired interval between loggings.
Disturbances in comfort In most cases, SMO 20 notes a malfunction (a malfunction Caution can lead to disruption in comfort) and indicates this with alarms, and instructions for action, in the display. Selecting "aid mode” is not the same as correcting the problem that caused the alarm.
Low room temperature • Closed thermostats in several rooms. – SMO 20 does not call on heating, hot water or cooling. – Set the thermostats to max, in as many rooms as pos- • Compressor blocked due to the temperature conditions.
EME 20 is used to enable communication and control between in- Enamel Part no. 081 069 Enamel Part no. 081 073 verters for solar cells from NIBE and SMO 20. Stainless Part no. 081 070 Stainless Part no. 081 072 Part no.
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REVERSING VALVE FOR COOLING VCC 05 Reversing valve, Cu pipe Ø22 mm Part no. 067 311 VCC 11 Reversing valve, Cu pipe Ø28 mm Part no. 067 312 Chapter 11 | Accessories NIBE SMO 20...
°C 5 – 35 Program cycles, hours 1, 24 Program cycles, days 1, 2, 5, 7 Resolution, program min. Dimensions and weight Width Depth Height Weight Part no. Part No. 067 224 Chapter 12 | Technical data NIBE SMO 20...
Tel: +48 (0)85 66 28 490 Hannabadsvägen 5, 285 21 Markaryd Tel. +41 (0)58 252 21 00 biawar.com.pl Tel: +46 (0)433-27 3000 info@nibe.ch info@nibe.se nibe.ch nibe.se For countries not mentioned in this list, contact NIBE Sweden or check nibe.eu for more information.
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WS release date: 2022-07-08 07:14 Publish date: 2022-10-03 07:35 This is a publication from NIBE Energy Systems. All product illustrations, facts and data are based on the available information at the time of the publication’s approval. NIBE Energy Systems makes reservations for any factual or printing errors in this publication.
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