Nibe SMO 20 Installer Manual
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Nibe SMO 20 Installer Manual

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Installer manual
SMO 20
Control module
IHB GB 1325-2
231758

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Summary of Contents for Nibe SMO 20

  • Page 1 Installer manual SMO 20 Control module IHB GB 1325-2 231758...
  • Page 2 OK button twice. Read more about the settings on page 27. To temporarily increase the amount of hot water (if a hot water heater is installed to your SMO 20), first turn the control knob to mark menu 2 (water droplet) and then press the OK button twice. Read more about the settings on page 32.

  • Page 3: Table Of Contents

    Optional connections Additional heating only Connecting accessories 11 Accessories 6 Commissioning and adjusting Preparations 12 Technical data Commissioning with NIBE air/water heat Dimensions and setting-out coordinates pump Technical specifications Commissioning with additional heating Electrical circuit diagram only Check the reversing valve...

  • Page 4: Important Information

    This symbol indicates tips on how to facilitate using the product. Marking SMO 20 is CE marked and fulfils IP21. The CE marking means that NIBE ensures that the product meets all regulations that are placed on it based on relevant EU directives. The CE mark is obligat- ory for most products sold in the EU, regardless where they are made.
  • Page 5 AUX 3 AUX 4 AUX 5 AUX 6 Dipswitch Miscellaneous Checking additional heater Checking the function of the reversing valve Checking charge pump function Completed installation check of heat pump and associated equipment SMO 20 Chapter 1 | Important information...
  • Page 6 Puh: 09-274 697 0 Fax: 09-274 697 40 E-mail: info@nibe.fi www.nibe.fi AIT France, 10 rue des Moines, 67000 Haguenau Tel : 03 88 06 24 10 Fax : 03 88 06 90 15 E-mail: info@nibe.fr www.nibe.fr NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way, Chesterfield S41 9QG Tel: 0845 095 1200 Fax: 0845 095 1201 E-mail: info@nibe.co.uk www.nibe.co.uk...

  • Page 7: Delivery And Handling

    Heating pipe paste Insulation tape Temperature sensor Aluminium tape Cable ties Use all mounting points and install SMO 20 upright. Leave approximately 100 mm free space around the control module to facilitate access and cable routing on installation and service. NOTE Access the screws for installing the front cover from underneath.

  • Page 8: The Control Module Design

    PF 3 Serial number plate UB 1 Cable grommet, incoming supply electricity, power for accessories UB 2 Cable gland, signal Designations in component locations according to standard IEC 81346-1 and 81346-2. Chapter 3 | The Control Module Design SMO 20...

  • Page 9: Pipe Connections

    Temperature sensor installation on pipe Pipe installation must be carried out in accordance with current norms and directives. See manual for compat- ible NIBE air/water heat pump for installation of the heat pump. Compatible NIBE air/water heat pumps Compatible NIBE air/water heat pumps must be...

  • Page 10: Docking Alternatives

    Docking alternatives QM43 Shut-off valve Miscel- SMO 20 can be connected with other products from laneous NIBE in several different ways, some of which are shown Expansion vessel closed, Hot water below (accessories may be required). Buffer vessel (UKV) CP10 Accumulator tank with hot water heating Further option information is available at www.nibe.eu...
  • Page 11 Compatible NIBE air/water heat pump together with SMO 20 and electric heater before revers- ing valve for hot water (floating condensing) -AA25 -RN10 -AA25-QN10 -EB1 -EB1 -FL2 -KA1 -BT63 -CM1 -CP10 -AA25-BT7 -AA25 -BT1 -AA25-BT6 -EB101 -EB101 -FL10 -QM31 -BT12...
  • Page 12 Compatible NIBE air/water heat pump together with SMO 20 and electric heater after reversing valve for hot water (floating condensing) -EB1 -EB1 -KA1 -AA25 -CP5 -BT25 -GP10 -BT71 -AA25 -RN10 -AA25-QN10 -FL2 -CM1 -CP10 -AA25-BT7 -AA25 -AA25 -BT1 -BT50 -AA25-BT6...

  • Page 13: Electrical Connections

    If the building is equipped with an earth-fault breaker, SMO 20 should be equipped with a separ- ate one. SMO 20 must be installed via an isolator switch with a minimum breaking gap of 3mm. For the electrical wiring diagram for the control module, see page 53.
  • Page 14 Torx 25 screwdriver. Lift the display unit from its mountings. Align the two lower mountings on the reverse of the display unit with the two upper holes in the panel as illustrated. Chapter 5 | Electrical connections SMO 20...
  • Page 15 Secure the display on the panel. 5. When the electrical connection is ready the display must be reinstalled with three mounting points again, otherwise the front cover cannot be in- stalled. Terminal block 3,5 mm 1 mm SMO 20 Chapter 5 | Electrical connections...

  • Page 16: Connections

    20 cm to high voltage cable when cable routing. F2040 Power connection SMO 20 must be installed via an isolator switch with a F2030 minimum breaking gap of 3mm. Minimum cable area must be dimensioned according to the fuse rating used.
  • Page 17 A temperature sensor for hot water top (BT7) can be Install the outside temperature sensor (BT1) in the connected to SMO 20 to show the water temperature shade on a wall facing north or north-west, so it is un- at the top of the tank (if it is possible to install a sensor affected by the morning sun.

  • Page 18: Optional Connections

    The control module operates without the sensor, but if one wishes to read off the accommodation's indoor temperature in SMO 20 display the sensor must be in- stalled. Connect the room sensor to terminal block X2:7 and X2:10.
  • Page 19 No hot water is produced when emergency mode is activated. 1 2 3 4 5 6 AA7-X2 AA7-X2 SMO 20 Externt External Externt If the relays are to be used for control voltage, bridge the supply from terminal block X1:1 to X2:2, X2:4 and X2:6 on additional relay card (AA7).
  • Page 20 External circulation pump External connection options Connect the external circulation pump (GP10) accord- On terminal block X2, SMO 20 has software controlled ing to image for terminal block X4:9 (PE), X4:10 (N) and inputs and outputs for connection of sensors and ex- X4:11 (230 V) on the base card (AA2).
  • Page 21 5.4. An external switch function can be connected to SMO 20 for activation of the hot water function A closed contact results in the electrical output be- "temporary lux". The switch must be potential free ing disconnected.

  • Page 22: Connecting Accessories

    (max 2 A) on terminal block X4:15-17 on the base card installation instructions provided. See page 49 for the (AA2). list of the accessories that can be used with SMO 20. Optional functions for external connection: Indication of buzzer alarm.

  • Page 23: Commissioning And Adjusting

    – "Start-up and inspection". SMO 20 1. Power the heat pump. 2. Power SMO 20. 3. Follow the start guide in the display on SMO 20 alternatively start the start guide in menu 5.7. Commissioning with addition- al heating only At first start follow the start guide, otherwise follow the list below.

  • Page 24: Start Guide

    During the start up guide the reversing valves and the Name and menu number shunt valve are run backward and forwards to help vent SMO 20. Read what menu in the control system this page of the start guide is based on. The digits in brackets refer to Caution the menu number in the control system.

  • Page 25: Control - Introduction

    The control knob can be turned to the right or left. You can: scroll in menus and between options. increase and decrease the values. change page in multiple page instructions (for example help text and service info). SMO 20 Chapter 7 | Control - Introduction...

  • Page 26: Menu System

    See page 35. Menu 5 - SERVICE Advanced settings. These settings are not available to the end user. The menu is visible by pressing the Back button for 7 seconds. See page 39. Chapter 7 | Control - Introduction SMO 20...
  • Page 27 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 option. The selected option has a green tick. SMO 20 Chapter 7 | Control - Introduction...
  • Page 28 1. Use the control knob to select the help symbol. 2. Press the OK button. The help text often consists of several windows that you can scroll between using the control knob. Chapter 7 | Control - Introduction SMO 20...

  • Page 29: Control - Menus

    Confirm the new setting by pressing the OK button. The new temperature is shown on the right-hand side of the symbol in the display. SMO 20 Chapter 8 | Control - Menus...
  • Page 30 Setting the offset of the heating curve at a specific outdoor temperature. Schedule: The schedule to be changed is selected here. Activated: Scheduling for the selected period is activ- ated here. Set times are not affected at deactivation. Chapter 8 | Control - Menus SMO 20...
  • Page 31 The heating curve is set when the heating installation Check the max temperature for your floor with is installed, but may need adjusting later. Thereafter your installer/floor supplier. the heating curve should not need further adjustment. SMO 20 Chapter 8 | Control - Menus...
  • Page 32 3. Press the OK button to exit the setting. Set the minimum temperature on the supply temper- ature to the climate system. This means that SMO 20 To read off a heating curve: 1. Turn the control knob so that the ring on the shaft never calculates a temperature lower than that set with the outdoor temperature is marked.
  • Page 33 "outdoor temp. point" is set to "-2" and "change in curve" is increased until the desired room temperature is maintained. Caution Wait 24 hours before making a new setting, so that the room temperature has time to stabilise. SMO 20 Chapter 8 | Control - Menus...

  • Page 34: Menu 2 - Hot Water

    The remaining time for the selected setting is shown Conflict to the right. Time period Adjusting When the time has run out SMO 20 returns to the mode set in menu 2.2. Schedule: The schedule to be changed is selected here. Select “off" to switch off temporary lux Activated: Scheduling for the selected period is activ- ated here.
  • Page 35 The length of time between increases can be selected here. The time can be set between 1 and 90 days. Factory setting is 14 days. Untick "activated" to switch off the function. SMO 20 Chapter 8 | Control - Menus...

  • Page 36: Menu 3 - Info

    Information about the additional heat settings, operat- ing status and statistics can be obtained here. No changes can be made. The information is on several pages. Turn the control knob to scroll between the pages. Chapter 8 | Control - Menus SMO 20...

  • Page 37: Menu 4 - My System

    1 °C. is permitted (crossed out = not permitted) and select- SMO 20 Chapter 8 | Control - Menus...
  • Page 38 Menu 4.7 - holiday setting If a room sensor is installed and activated the desired room temperature (°C) is set during the time period. This setting applies to all climate systems with room sensors. Chapter 8 | Control - Menus SMO 20...
  • Page 39 Time period: The start and stop time for the selected start/stop. day for scheduling are selected here. Blocking: The desired blocking is selected here. Conflict: If two settings conflict with each other a red exclamation mark is displayed. SMO 20 Chapter 8 | Control - Menus...
  • Page 40 To remove the scheduling for a particular day, the time for that day must be reset by setting the start time to the same as the stop time. If Chapter 8 | Control - Menus SMO 20...

  • Page 41: Menu 5 - Service

    Forced control of the different compon- ents in the indoor module. start guide Manual start of the start guide which is run the first time when the control module is started. quick start Quick starting the compressor. SMO 20 Chapter 8 | Control - Menus...
  • Page 42 Here you select whether the step controlled additional heat is positioned before or after the reversing valve for hot water charging (QN10). Step controlled addi- tional heat is for example an external electric boiler. Chapter 8 | Control - Menus SMO 20...
  • Page 43 DOT is the difference in degrees between flow If the water heater is connected to SMO 20 hot water and return temperatures at dimensioned outdoor charging must be activated here.
  • Page 44 Set what speed the charge days. pump is to operate at with different demands here. auto: The charge pump selects optimal speed for the present demand for SMO 20. Chapter 8 | Control - Menus SMO 20...
  • Page 45 Here you set the speed of the charge pump (settable between 0 and 100%) at "op mode auto" when the compressor in the heat pump is stationary at the same time that heat is permitted. SMO 20 Chapter 8 | Control - Menus...

  • Page 46: Service

    NOTE (°C) (kOhm) Servicing should only be carried out by persons 351.0 3.256 with the necessary expertise. 251.6 3.240 When replacing components on SMO 20 only 182.5 3.218 replacement parts from NIBE may be used. 133.8 3.189 99.22 3.150 74.32 3.105...
  • Page 47 SMO 20 from NIBE. The fact box at the top of the display shows information SMO 20 is equipped with a USB socket in the display (always in English) of the most probable update that unit. This USB socket can be used to connect a USB...
  • Page 48 Setting range: 1 s – 60 min Default setting range: 5 s Set whether the present measurement values from SMO 20 are to be saved in a log on the USB memory. Log for longer periods 1. Set the desired interval between loggings.

  • Page 49: Disturbances In Comfort

    The ature is only low in cold weather the curve slope status lamp will therefore continue to be red. in menu 1.9.1 "heating curve" needs adjusting SMO 20 Chapter 10 | Disturbances in comfort...

  • Page 50: Additional Heating Only

    Vent the climate system. Closed valves (QM20), (QM32)to the climate system. Caution Open the valves. When commissioning without NIBE air/water heat pump an alarm communication error may High room temperature appear in the display. Too high set value on the automatic heating control.

  • Page 51: Accessories

    Copper Part no. 083 220 8 kW Part no. 064 109 VPB 750-2 12 kW Part no. 064 092 Hot water heater with charge coil 16 kW Part no. 064 108 Copper Part no. 083 231 SMO 20 Chapter 11 | Accessories...
  • Page 52 VPB 1000 Hot water heater with charge coil Copper Part no. 083 240 VPAS 300/450 Copper Part no. 087 720 Enamel Part no. 087 710 Chapter 11 | Accessories SMO 20...

  • Page 53: Technical Data

    12 Technical data Dimensions and setting-out coordinates SMO 20 Chapter 12 | Technical data...

  • Page 54: Technical Specifications

    Technical specifications SMO 20 Width (mm) Height (mm) Depth (mm) Weight, (without packaging and enclosed components) (kg) Enclosure class IP21 Max number air/water heat pumps Max number of sensors Max number of charge pumps Max number of circulation pumps/climate systems...

  • Page 55: Electrical Circuit Diagram

    Electrical circuit diagram SMO 20 Chapter 12 | Technical data...
  • Page 56 Chapter 12 | Technical data SMO 20...
  • Page 57 SMO 20 Chapter 12 | Technical data...
  • Page 58 Chapter 12 | Technical data SMO 20...

  • Page 59: Item Register

    Commissioning and adjusting, 21 Temperature sensor, external supply line after electric heat- Commissioning with additional heating only, 21 er, 16 Commissioning with NIBE air/water heat pump, 21 Temperature sensor, hot water charging, 15 Preparations, 21 External circulation pump, 18 Start guide, 22...
  • Page 60 Temperature sensor, hot water charging, 15 Temperature sensor, hot water top, 15 Temperature sensor data, 44 The Control Module Design, 6 Component locations, 6 List of components, 6 Troubleshooting, 47 USB service outlet, 45 Chapter 13 | Item register SMO 20...
  • Page 61 SMO 20 Chapter 13 |...
  • Page 62 Chapter 13 | SMO 20...
  • Page 64 NIBE AB Sweden Hannabadsvägen 5 Box 14 SE-285 21 Markaryd info@nibe.se www.nibe.eu 231758...

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