Nibe S1255-16 Installer Manual
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Nibe S1255-16 Installer Manual

Ground source heat pump
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IHB EN 2001-2
531086
Ground source heat pump
NIBE S1255
INSTALLER MANUAL

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Summary of Contents for Nibe S1255-16

  • Page 1 IHB EN 2001-2 INSTALLER MANUAL 531086 Ground source heat pump NIBE S1255...
  • Page 2 Quick guide NAVIGATION Browse Scroll The dots at the bot- Select If the menu has tom edge show Most options and several sub-menus, that there are more functions are activ- you can see more pages. ated by lightly information by pressing on the dis- Drag to the right or dragging up or...

  • Page 3: Table Of Contents

    Electrical data General Technical specifications Connections Energy labelling Settings Item register 6 Commissioning and adjusting Preparations Contact information Filling and venting Start-up and inspection Setting the heating curve 7 myUplink Specification Connection Range of services NIBE S1255 Table of Contents...

  • Page 4: Important Information

    The CE mark is obligatory for most products sold in the EU, regardless of where they are made. IPx1B Classification of enclosure of electro-technical equipment. Read the User Manual. Read the Installer Manual. Chapter 1 | Important information NIBE S1255...

  • Page 5: Inspection Of The Installation

    Shut off valves Circulation pump setting Electricity Connections Main voltage Phase voltage Fuses heat pump Fuses property Outside sensor Room sensor Current sensor Safety breaker Earth circuit-breaker Set emergency mode in menu 7.1.8.2 NIBE S1255 Chapter 1 | Important information...

  • Page 6: Delivery And Handling

    • Because water comes from S1255, the area where the heating pump is located must be equipped with floor drainage. 0 - 50 mm Chapter 2 | Delivery and handling NIBE S1255...

  • Page 7: Supplied Components

    The kit of supplied items is placed in packaging on top Hook one bottom corner of the front onto the frame. of the heat pump. Handling panels OPEN FRONT HATCH Press the hatch's top left corner to open it. NIBE S1255 Chapter 2 | Delivery and handling...
  • Page 8 Check the display is straight. Adjust if necessary. Twist the panel slightly outwards. Press the top of the front section against the frame and screw it into place. Move the panel outwards and backwards. Chapter 2 | Delivery and handling NIBE S1255...

  • Page 9: Removing Insulation

    Assembly takes place in the reverse order. Removing insulation The insulation can be removed to make installation easier. NIBE S1255 Chapter 2 | Delivery and handling...

  • Page 10: The Heat Pump Design

    AA4-XF3 USB port Immersion heater Miniature circuit breaker Electrical anode On/off button Network connection for myUplink S1255-6 3x400 V is not equipped with miniature circuit breakers (FC1). Only heat pump with enamelled vessel. MISCELLANEOUS Rating plate Identification plate, cooling module...

  • Page 11: Distribution Boxes

    Electrical anode board FQ10 Temperature limiter BT10 FQ10-S2 Reset button for temperature limiter Choke Only heat pump with enamelled vessel. Only for S1255-12 3X400 V. BT11 16 kW BT12 BT10 BT11 NIBE S1255 Chapter 3 | The heat pump design...
  • Page 12 Inverter Choke BT14 EMC-filter QA40 COOLING COMPONENTS GQ10 BT17 Evaporator XL21 Condenser BT15 GQ10 Compressor XL20 Drying filter Expansion valve EB10 16 kW BT14 GQ10 QA40 BT17 BT15 XL20 EB10 XL21 Chapter 3 | The heat pump design NIBE S1255...

  • Page 13: Pipe Connections General

    The overflow pipe must be visible and Cooling system its mouth must be open and not located close to electrical components. Pool Radiator system Domestic hot water NIBE S1255 Chapter 4 | Pipe connections...

  • Page 14: Dimensions And Pipe Connections

    Connection, brine in Connection, brine out PIPE DIMENSIONS Connection (XL1)/(XL2) Heating medium (mm) supply/return ext. Ø (XL3)/(XL4) Cold/hot water Ø (mm) (XL6)/(XL7) Brine in/out ext. Ø (mm) * Can be angled for side connection. Chapter 4 | Pipe connections NIBE S1255...

  • Page 15: Brine Side

    S1255 and for example radiators, underfloor heating/cooling, fan convectors etc. • Install all necessary safety devices, shut-off valves (as close to the heat pump as possible) and the enclosed filterball. NIBE S1255 Chapter 4 | Pipe connections...

  • Page 16: Cold And Hot Water

    S1255. EXTRA HOT WATER HEATERS The heat pump should be supplemented with an extra water heater, if a large bath tub or other significant consumer of hot water is installed. Chapter 4 | Pipe connections NIBE S1255...
  • Page 17 TWO OR MORE CLIMATE SYSTEMS The installation can be supplemented with the exhaust In buildings with several climate systems that require air module NIBE FLM S45 to provide ventilation recov- different supply temperatures, the accessory ery. ECS 40/ECS 41 can be connected. A shunt valve then lowers the temperature to the underfloor heating sys- •...

  • Page 18: Electrical Connections

    • When cable routing in S1255, the cable grommets breaker (FC1). (UB1 and UB2) must be used. S1255-6 3x400 V is not equipped with miniature circuit breakers (FC1). Chapter 5 | Electrical connections NIBE S1255...
  • Page 19 89 °C and it is reset manually. Resetting The temperature limiter (FQ10) can be accessed behind the front cover. Reset the temperature limiter by pressing its button (FQ10-S2). NIBE S1255 Chapter 5 | Electrical connections...

  • Page 20: Connections

    If the voltage to the immersion heater and/or com- pressor is lost for a period, this must be blocked at the same time via the selectable inputs, see section "Select- able inputs/outputs – Possible selections for AUX inputs". Chapter 5 | Electrical connections NIBE S1255...
  • Page 21 For example, short time periods in combination with underfloor heating will not AA2-X28 give a noticeable difference in room temperat- ure. External energy meter AA2-X29 One or two energy meters (BE6, BE7) are connected to AA2-X28:1-2 or AA2-X30:7-8. NIBE S1255 Chapter 5 | Electrical connections...
  • Page 22 Ground source heat pump models power steps for the electric additional heat by redistrib- with multi-installation functionality from NIBE can be uting the power between the different phases or by connected to S1255.
  • Page 23 • hot water demand mode "more hot water" On the PCB (AA2), S1255 has software-controlled AUX • hot water demand mode "small" inputs and outputs for connecting the external switch function (contact has to be potential free) or sensor. NIBE S1255 Chapter 5 | Electrical connections...
  • Page 24 The relay outputs may be subjected to a max – Normal mode (A: Open, B: Open) load of 2 A at resistive load (230V AC). "SG Ready" is not active. No effect on the system. Chapter 5 | Electrical connections NIBE S1255...

  • Page 25: Settings

    The immersion heater's power is split into steps (four steps, if the immersion heater for 3x400 V is switched to maximum 9 kW), according to table. Setting maximum output in the electric additional heat is done in menu 7.1.5.1. NIBE S1255 Chapter 5 | Electrical connections...
  • Page 26 3x400 V, S1255-6 1x230 V S1255-6 Max electric- Max phase Max phase Max phase Max electric- Max phase current L1(A) al addition current L1(A) current L2(A) current al addition (kW) L3(A) (kW) – – – – – – – –...
  • Page 27 (SF1) for 2 seconds and select "emergency mode" from the shutdown menu. To activate when S1255 is switched off: press and hold the on/off button (SF1) for 5 seconds. (Deactivate the emergency mode by pressing once.) NIBE S1255 Chapter 5 | Electrical connections...

  • Page 28: Commissioning And Adjusting Preparations

    Bleed the heat pump via a vent valve (QM22) and the rest of the climate system via their relevant vent valves. Keep topping up and venting until all air has been removed and the pressure is correct. Chapter 6 | Commissioning and adjusting NIBE S1255...

  • Page 29: Start-Up And Inspection

    As long as the start guide is active, no function in the installation will start automatically. The start guide will appear at each restart of the installation, until it is deselected on the last page. NIBE S1255 Chapter 6 | Commissioning and adjusting...
  • Page 30 This automatic control occurs when the compressor is running and sets the speed of the brine pump so that 100% P60% the optimum temperature difference between the supply P40% and return lines is attained. Flow Flöde (l/s) Chapter 6 | Commissioning and adjusting NIBE S1255...
  • Page 31 Air is initially released from the hot water and venting may be necessary. If gurgling sounds can be heard from the heat pump or climate system, the entire system will require additional venting. NIBE S1255 Chapter 6 | Commissioning and adjusting...

  • Page 32: Setting The Heating Curve

    A set minimum value the heating curve flattens out at steeper slope means a higher supply temperature at a these temperatures. certain outdoor temperature. Chapter 6 | Commissioning and adjusting NIBE S1255...
  • Page 33 1.30.7. TO READ OFF A HEATING CURVE Drag in the circle on the axis with outdoor temperat- ure. Read off the value for supply temperature in the circle on the other axis. NIBE S1255 Chapter 6 | Commissioning and adjusting...

  • Page 34: Myuplink

    The mobile apps can be downloaded free of charge from where you usually download your mobile apps. Logging into the mobile app is performed using the same account details as on myuplink.com. Chapter 7 | myUplink NIBE S1255...

  • Page 35: Control - Introduction

    "Software" tab to download the latest version of the software for your installation. If you connect the product to the network, you can update the software without using the USB port. See section "myUplink". NIBE S1255 Chapter 8 | Control - Introduction...

  • Page 36: Navigation

    More hot water Temperature Drag to the right or left with your finger to browse between the function pages. Press to save your change, or if you don't want to make a change. Chapter 8 | Control - Introduction NIBE S1255...
  • Page 37 13.45 3 October Hot water Operating status Supply line BT12 +45°C PRODUCT OVERVIEW Return temp BT3 impact +35°C VVM S320 Product name 06919618030101 Serial number Software 0.5.1 Update Company AB Service Telephone number NIBE S1255 Chapter 8 | Control - Introduction...
  • Page 38 Your system is working properly. Do you want help making changes? Yes please, take me to Smartguide. You can always press "X" to return to the home screens. MAIN MENU Indoor climate Hot water Info My system Connection Chapter 8 | Control - Introduction NIBE S1255...

  • Page 39: Control - Menus

    Setting range: 5 – 30 °C crease or reduce the value in the display. The value in the display appears as a temperature in °C if the climate system is controlled by a room sensor. NIBE S1255 Chapter 9 | Control - Menus...
  • Page 40 It is from this heating curve that from the set value. S1255 determines the temperature of the water to the climate system, the supply temperature, and therefore Chapter 9 | Control - Menus NIBE S1255...
  • Page 41 The heating curve is affected at ± 5°C from set outdoor Setting range: 5 - 80 °C temp. point. NIBE S1255 Chapter 9 | Control - Menus...
  • Page 42 "-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 sta- bilise. Chapter 9 | Control - Menus NIBE S1255...

  • Page 43: Menu 2 - Hot Water

    Large: This mode gives the most hot water at a higher temperature than the other alternatives. In this mode, the immersion heater may be used in part to heat hot water. In this mode, hot water production is prioritised. NIBE S1255 Chapter 9 | Control - Menus...

  • Page 44: Menu 3 - Info

    You can see information for the 10 most recent alarms. To view operating status in the event of an alarm, select the relevant alarm from the list. Chapter 9 | Control - Menus NIBE S1255...

  • Page 45: Menu 4 - My System

    If you deselect "addition" it may mean that in- In this operating mode, you can select the functions that sufficient hot water and/or heating in the ac- are permitted. You cannot deselect "Compressor" in commodation is achieved. manual mode. NIBE S1255 Chapter 9 | Control - Menus...
  • Page 46 24 hours to periods with the cheapest electri- Control method city tariff, which gives savings for hourly rate based electricity contracts. The function is based on hourly Alternative: Price / CO Chapter 9 | Control - Menus NIBE S1255...
  • Page 47 MENU 4.10 - COUNTRY Select here the country in which the product was in- stalled. This allows access to country-specific settings in your product. Language settings can be made regardless of this selec- tion. NIBE S1255 Chapter 9 | Control - Menus...

  • Page 48: Menu 5 - Connection

    You can set TCP/IP settings for your installation here. Automatic setting (DHCP) Activate "Automatic". The installation now receives the TCP/IP settings using DHCP. Manual setting Select "IP address" and enter correct address using the keyboard. Chapter 9 | Control - Menus NIBE S1255...

  • Page 49: Menu 6 - Scheduling

    Caution A schedule repeats according to the selected setting (e.g. every Monday) until you go into the menu and switch it off. NIBE S1255 Chapter 9 | Control - Menus...

  • Page 50: Menu 7 - Service

    7.9 - Logs 7.9.1 - Change log 7.9.2 - Extended alarm log 7.9.3 - Black box This menu is also shown in the subordinate heat pump’s limited menu system. Consult the accessory’s Installer Manual. Chapter 9 | Control - Menus NIBE S1255...
  • Page 51 Intermittent: The heating medium pump starts approx. 20 seconds before and stops 20 seconds after the 10 days continuous: Continuous operation for 10 days. compressor. The pump then changes to intermittent operation. NIBE S1255 Chapter 9 | Control - Menus...
  • Page 52 Setting range: 7 / 9 kW Automatic reset Max set electrical power Setting range: on/off Setting range S1255-6 1x230 V: 0 - 4.5 kW Minimum brine temperature out Setting range S1255-6 3x230 V: 0 - 4.5 kW Setting range: -12 – 15°C...
  • Page 53 DOT is the difference in degrees between supply and return temperatures at design outdoor temperature. Setting range 3X400V: 4 – 9 kW Settings are made in this menu for how the additional heat will be controlled in emergency mode. NIBE S1255 Chapter 9 | Control - Menus...
  • Page 54 MENU 7.2 - ACCESSORY SETTINGS The operating settings for accessories that are installed and activated are made in the sub-menus for this. MENU 7.2.1 - ADD/REMOVE ACCESSORIES Here, you tell S1255 which accessories are installed. Chapter 9 | Control - Menus NIBE S1255...
  • Page 55 Compressor (standard) Caution In multi-installations, each heat pump must have a unique ID. You enter this for each heat Compressor (externally controlled) pump that is connected to S1255. Compressor (blocked) NIBE S1255 Chapter 9 | Control - Menus...
  • Page 56 You can set up to seven period times with different the user) to default values here. calculated flow temperatures. If less than seven periods are to be used, set the remaining period times to 0 days. Chapter 9 | Control - Menus NIBE S1255...
  • Page 57 MENU 7.9.3 - BLACK BOX Via this menu, it is possible to export all logs (Change log, Extended alarm log) to USB. Connect a USB memory and select the log(s) you want to export. NIBE S1255 Chapter 9 | Control - Menus...

  • Page 58: Service

    Servicing should only be carried out by persons with the necessary expertise. When replacing components on S1255 only replacement parts from NIBE may be used. EMERGENCY MODE The image shows an example of what a cooling section could look NOTE like.
  • Page 59 (XL7). service can be carried out. When the brine system is empty, the required service can be carried out. HELPING THE CIRCULATION PUMP TO START Shut off S1255. NIBE S1255 Chapter 10 | Service...
  • Page 60 Switch off the heat pump and cut the power with the safety switch. Caution Remove the front cover according to the de- scription on page 1 The images show examples of what a cooling module could look like. Chapter 10 | Service NIBE S1255...
  • Page 61 During reassembly, the enclosed O-rings should replace the existing ones on the shut- off valves (QM32), (QM33) and (QM34). Remove the two screws. Disconnect the connectors (XF2), (XF11) and (XF22). Carefully pull out the cooling module. NIBE S1255 Chapter 10 | Service...
  • Page 62 NOTE In order to update using a USB memory, the memory must contain a file with software for S1255 from NIBE. One or more files are shown in the display. Select a file and press "OK". A software update does not reset the menu settings in S1255.
  • Page 63 S1255 has ended up in emergency mode and the software has not been restored. If you have a previous version of the software on your USB memory, you can install that in- stead of manually restoring the version. NIBE S1255 Chapter 10 | Service...

  • Page 64: Disturbances In Comfort

    In this case, any electric ad- screen "hot water" or in menu 2.1. ditional heat produces heat and/or hot water. • Too low hot water setting. Chapter 11 | Disturbances in comfort NIBE S1255...
  • Page 65 HIGH ROOM TEMPERATURE • Uneven flow over the radiators. • Too high set value on the automatic heating control. – Adjust the flow distribution between the radiators. NIBE S1255 Chapter 11 | Disturbances in comfort...

  • Page 66: Accessories

    Part no 089 368 Part no 089 971 EME 20 is used to enable communication and control between inverters for solar cells from NIBE and S1255. FREE COOLING PCS 44 Part no. 057 188 This accessory is used when S1255 is installed in an installation with passive cooling.
  • Page 67 S1255 to be carried out in a different part of your home to where it is located. Part no. 067 650 SOLAR PACKAGE NIBE PV Solar panel package, 3 - 24 kW, (10 - 80 panels), which is used to produce your own electricity.

  • Page 68: Technical Data

    Dimensions and setting-out coordinates * This dimension applies at 90° angle on the brine pipes (side connection). The dimension can vary approx. ±100 mm vertically as the brine pipes consist in part of flexible pipes. Chapter 13 | Technical data NIBE S1255...

  • Page 69: Electrical Data

    Electrical data 1X230 V S1255-6 Rated voltage 230V ~ 50Hz Max operating current including 0 – 0.5 kW immersion heater (Recommended fuse rating). 15(16) Max operating current including 1 – 1.5 kW immersion heater (Recommended fuse rating). 20(20) Max operating current including 2 – 2.5 kW immersion heater (Recommended fuse rating).

  • Page 70: Technical Specifications

    Technical specifications 1X230 V, 3X230 V, 3X400 V Model S1255-6 S1255-12 S1255-16 Output data according to EN 14511 Heating capacity (P 1.5 – 6 3 – 12 4 – 16 0/35 nominal Heating capacity (P 3.15 5.06 8.89 Supplied power (P 0.67...
  • Page 71 COMPRESSOR OPERATION The compressor provides a supply temperature up to 65 °C at -5 °C incoming brine temperature. The working range below 75 % for S1255-6 and the Arbetsområde under 75% för F1155-1255 6kW, för hela arbetsområdet 12 och 16 kW.
  • Page 72 Specified heating output, kW 100% Heating mode 35 °C Diagram for dimensioning a heat pump. The percentage shows approximate compressor speed. Dimensionering kompr. hastighet för F1155-1255 -6 kW. S1255-6 Avgiven värmeeffekt Specified heating output, kW 100% °C Köldbärare in, temperatur Incoming brine temp, °C...
  • Page 73 100% To dimension heating dump, see the diagram for heating operation. Supply temperature, heating medium 35 °°C Framledningstemp. Värmebärare 35 °C för F1155-1255 -6 kW. S1255-6 Avgiven kyleffekt Specified cooling output, kW °C Köldbärare in, temperatur Incoming brine temp, °C 100% Supply temperature, heating medium 50 °°C...
  • Page 74 Framledningstemp. Värmebärare 50 °C för F1155-1255 -16 kW. S1255-16 Avgiven kyleffekt Specified cooling output, kW 100% °C Köldbärare in, temperatur Incoming brine temp, °C Chapter 13 | Technical data NIBE S1255...

  • Page 75: Energy Labelling

    Energy labelling INFORMATION SHEET Supplier NIBE AB Model S1255-6 1x230V S1255-12 1x230V Temperature application °C 35 / 55 35 / 55 Declared load profile for water heating Seasonal space heating energy efficiency class, aver- : A++ / A++ : A++ / A++...
  • Page 76 Supplier NIBE AB Model S1255-6 3x400V S1255-12 3x400V S1255-16 3x400V Temperature application °C 35 / 55 35 / 55 35 / 55 Declared load profile for water heating Seasonal space heating energy efficiency class, aver- Up to and including 25/09/2019...
  • Page 77 DATA FOR ENERGY EFFICIENCY OF THE PACKAGE Model S1255-6 1x230V S1255-12 1x230V Temperature application °C 35 / 55 35 / 55 Controller, class Controller, contribution to efficiency Seasonal space heating energy efficiency of the 204 / 154 205 / 161...
  • Page 78 Daily energy consumption 7.73 Daily fuel consumption elec fuel Annual energy consumption 1,642 Annual fuel consumption Contact information NIBE Energy Systems – Box 14 – Hannabadsvägen 5 – 285 21 Markaryd – Sweden Chapter 13 | Technical data NIBE S1255...
  • Page 79 Daily energy consumption 7.78 Daily fuel consumption elec fuel Annual energy consumption 1,709 Annual fuel consumption Contact information NIBE Energy Systems – Box 14 – Hannabadsvägen 5 – 285 21 Markaryd – Sweden NIBE S1255 Chapter 13 | Technical data...
  • Page 80 Daily energy consumption 7.48 Daily fuel consumption elec fuel Annual energy consumption 1,642 Annual fuel consumption Contact information NIBE Energy Systems – Box 14 – Hannabadsvägen 5 – 285 21 Markaryd – Sweden Chapter 13 | Technical data NIBE S1255...
  • Page 81 Daily energy consumption 7.78 Daily fuel consumption elec fuel Annual energy consumption 1,709 Annual fuel consumption Contact information NIBE Energy Systems – Box 14 – Hannabadsvägen 5 – 285 21 Markaryd – Sweden NIBE S1255 Chapter 13 | Technical data...
  • Page 82 Daily energy consumption 7.48 Daily fuel consumption elec fuel Annual energy consumption 1,642 Annual fuel consumption Contact information NIBE Energy Systems – Box 14 – Hannabadsvägen 5 – 285 21 Markaryd – Sweden Chapter 13 | Technical data NIBE S1255...
  • Page 83 Daily energy consumption 7.78 Daily fuel consumption elec fuel Annual energy consumption 1,709 Annual fuel consumption Contact information NIBE Energy Systems – Box 14 – Hannabadsvägen 5 – 285 21 Markaryd – Sweden NIBE S1255 Chapter 13 | Technical data...
  • Page 84 Daily energy consumption 7.78 Daily fuel consumption elec fuel Annual energy consumption 1,709 Annual fuel consumption Contact information NIBE Energy Systems – Box 14 – Hannabadsvägen 5 – 285 21 Markaryd – Sweden Chapter 13 | Technical data NIBE S1255...

  • Page 85: Item Register

    Dimensions and pipe connections, 14 External connection options, 23 Dimensions and setting-out coordinates, 68 Possible selection for AUX inputs, 23 Disruption to comfort Possible selection for AUX output (potential free Info menu, 64 variable relay), 24 NIBE S1255 Item register...
  • Page 86 Diagram, dimensioning compressor speed, 72 Possible selection for AUX output (potential free variable Working range heat pump, 71 relay), 24 Technical documentation, 78 Possible selections for AUX output, 24 Temperature sensor, external flow line, 21 Temperature sensor data, 60 Item register NIBE S1255...
  • Page 87 Component list cooling section, 11 Component list electrical cabinets, 11 Component location cooling section, 11 Component location electrical cabinets, 11 Component locations, 10 List of components, 10 Transport, 6 Troubleshooting, 64 USB service outlet, 62 Working range heat pump, 71 NIBE S1255 Item register...
  • Page 91 Tel: +46 (0)433-27 3000 kuzmin@evan.ru info@nibe.se nibe-evan.ru nibe.se SWITZERLAND NIBE Wärmetechnik c/o ait Schweiz Industriepark, CH-6246 Altishofen Tel. +41 (0)58 252 21 00 info@nibe.ch nibe.ch For countries not mentioned in this list, contact NIBE Sweden or check nibe.eu for more information.
  • Page 92 WS release date: 2019-10-28 15:02 Publish date: 2019-12-17 08:43 This manual 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 manual.

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