Nibe S1255PC Installer Manual
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Nibe S1255PC Installer Manual

Ground source heat pump
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IHB EN 2001-2
531093
Ground source heat pump
NIBE S1255PC
INSTALLER MANUAL

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Summary of Contents for Nibe S1255PC

  • Page 1 IHB EN 2001-2 INSTALLER MANUAL 531093 Ground source heat pump NIBE S1255PC...
  • Page 2 Here, you can find information about product name, the hot water temperature. product's serial number, the version of the software and service. When there is new software to download, you can do it here (provided that S1255PC is connected to myUplink).

  • Page 3: Table Of Contents

    General Connections 13 Technical data Settings Dimensions and setting-out coordinates Electrical data 6 Commissioning and adjusting Technical specifications Preparations Energy labelling Filling and venting Start-up and inspection Item register Setting the cooling/heating curve Contact information NIBE S1255PC Table of Contents...

  • Page 4: Important Information

    The serial number can be found at the bottom right on ures for implementation by specialists. S1255PC, in the display on the home screen "Product overview" and on the type plate (PZ1). The manual must be left with the customer.

  • 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 S1255PC Chapter 1 | Important information...

  • Page 6: Delivery And Handling

    S1255PC should be transported and stored vertically in it against a wall behind a bedroom or other room a dry place. When being moved into a building, S1255PC where noise may be a problem. may be leant back 45 °.

  • Page 7: Supplied Components

    The kit of supplied items is placed in packaging on top of the heat pump. Handling panels ASSEMBLE THE FRONT Hook one bottom corner of the front onto the frame. OPEN FRONT HATCH Press the hatch's top left corner to open it. NIBE S1255PC 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 S1255PC...

  • Page 9: Removing Insulation

    Assembly takes place in the reverse order. Removing insulation The insulation can be removed to make installation easier. NIBE S1255PC 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 S1255PC-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

    Only heat pump with enamelled vessel. EMC-filter Cooling sections COOLING COMPONENTS Evaporator Condenser BT12 Heat exchanger, cooling GQ10 Compressor Drying filter BT11 Expansion valve BT10 QN18 QA40 BT14 BT17 GQ10 XL20 BT15 XL21 EB10 NIBE S1255PC Chapter 3 | The heat pump design...

  • Page 12: Pipe Connections General

    58 °C and an outgoing temperature from the heat pump of 70 (65 °C with only Non-return valve the compressor). Circulation pump S1255PC is not equipped with external shut off valves; Expansion vessel these must be installed to facilitate any future servicing. Filterball Caution Ensure that incoming water is clean.

  • Page 13: Dimensions And Pipe Connections

    Dimensions and pipe SYSTEM DIAGRAM S1255PC consists of a heat pump, water heater, elec- connections trical module, circulation pumps and a control system. S1255PC is connected to the brine and heating medium circuits. In the heat pump evaporator, the brine (water mixed...

  • Page 14: Brine Side

    Heating medium side CONNECTING THE CLIMATE SYSTEM A climate system is a system that regulates indoor comfort with the help of the control system in S1255PC 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.

  • Page 15: Cold And Hot Water

    • The settings for hot water are made in menu 7.1.1. -EP12-AA25 -EP12-EP4 -EP12-HQ40 -EP12-GP3 Docking alternatives S1255PC can be connected in several different ways, some of which are shown below. Further option information is available at nibe.eu/ODM and in the respective assembly instructions for the ac- cessories used. See...
  • Page 16 POOL The installation can be supplemented with the exhaust With the POOL 40 accessory, you can heat the pool air module NIBE FLM S45 to provide ventilation recov- with your heat pump. ery. During pool heating, the heating medium circulates •...

  • Page 17: Electrical Connections

    S1255PC should be equipped with a separate one. and damage. • S1255PC must be installed via an isolator switch. The cable area has to be dimensioned based on the fuse NOTE rating used.
  • Page 18 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). Chapter 5 | Electrical connections NIBE S1255PC...

  • Page 19: Connections

    X6-2 Connection 1x230V Connection 3x400V AA2-X6-1 AA2-X1 AA2-X6-1 AA2-X1 L (L) (L) N L1 L2 L3 If separate supply to the compressor and electric heater is required, see section "External blocking of functions". NIBE S1255PC Chapter 5 | Electrical connections...
  • Page 20 Outside sensor on S1255PC, the room sensor must be fitted. The room The outdoor sensor (BT1) is placed in the shade on a sensor is connected on terminal block X28:13 and to wall facing north or north-west, so it is unaffected e.g.
  • Page 21 X30:1 unit. The multi-core cable between the enclosure and (GND), X30:2 (+12V), X30:3 (B) and X30:4 (A) on the S1255PC must have a cable area of at least 0.5 mm². PCB (AA2). Use cable type LiYY, EKKX or similar.
  • Page 22 The example above uses the inputs AUX1 (AA2-X28:3) and AUX2 first accessory board directly to the terminal block in (AA2-X28:4). S1255PC. Other accessory boards are connected to the A selectable output is AA2-X27. first in series. For certain functions, accessories may be required.
  • Page 23 Closed or open switch means one of the following: The picture shows the relay in the alarm position. – If S1255PC is switched off or in emergency mode, the Blocking (A: Closed, B: Open) relay is in alarm position. “SG Ready” is active. The compressor in S1255PC and additional heat are blocked in the same way as today’s tariff blocking.

  • Page 24: Settings

    17.4 19.6 Settings Factory setting If the current sensors are connected, S1255PC monitors the phase currents and allocates the power steps auto- ELECTRICAL ADDITION - MAXIMUM OUTPUT matically to the least loaded phase. Number of steps, maximum electrical output and supply...
  • Page 25 EMERGENCY MODE When S1255PC is put into emergency mode, the system works as follows: • S1255PC prioritises heating production. • Hot water is produced if possible. • The load monitor is not connected. • The immersion heater is stepped according to the setting in menu 7.1.8.2 - Emergency mode.

  • Page 26: Commissioning And Adjusting Preparations

    (XL3). NOTE When the water that comes out of the hot water Do not start S1255PC if there is a risk that the tap is no longer mixed with air, the water heater is water in the system has frozen.

  • Page 27: Start-Up And Inspection

    Introduction" for a more detailed introduction to the installation's control system (operation, menus, etc.). If the building is cooled when S1255PC starts, the compressor may not be able to meet the entire demand without having to use additional heating. Commissioning The first time the installation is started a start guide is started.
  • Page 28 If several S1255PC are installed in a multi-installation, P 100% all S1255PC must be the same size (for example 12 kW) for the automatic control to function. Should the install- P80% ation contain, for example, a 6 kW and a 12 kW, adjust- ment must be carried out according to manual operation.

  • Page 29: Setting The Cooling/Heating Curve

    Heating medium side Readjusting, venting, collector side S1255PC has a heating medium pump that can be con- Level vessel trolled automatically. For manual operation, deactivate Check the fluid level in the level vessel Tillgängligt tryck, kPa "Auto" in menu 7.1.2.2 and then set the speed according (CM2).
  • Page 30 Select max and min supply temperature. temperatures. Caution Curve 0 means that own curve is used. Settings for own curve are made in menu 1.30.7. Chapter 6 | Commissioning and adjusting NIBE S1255PC...
  • Page 31 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 S1255PC Chapter 6 | Commissioning and adjusting...

  • Page 32: Myuplink

    S1255PC: Range of services • wireless network or network cable • Internet connection to which S1255PC can be connec- myUplink gives you access to various levels of service. The base level is included and, apart from this, you can •...

  • Page 33: Control - Introduction

    For hard switch off: press and hold the on/off button for 5 seconds. You can activate the emergency mode both when S1255PC is running and when it is switched off. To activate when S1255PC is running: press and hold THE STATUS LAMP the on/off button (SF1) for 2 seconds and select "emer-...

  • Page 34: Navigation

    Navigation FACTORY SETTING Factory set values are marked with *. S1255PC has a touchscreen where you simply navigate by pressing and dragging with your finger. SELECT Most options and functions are activ- ated by lightly pressing on the display with your finger.
  • Page 35 When there is new software to download, you can do it here (provided that S1255PC is connected to myUplink). Press the icons on the menu's lower edge for more in- formation about each function.
  • Page 36 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 S1255PC...

  • Page 37: Control - Menus

    MENU 1.1.1, 1.1.2 - HEATING AND COOLING MENU 1.1 TEMPERATURE Heating and cooling You make temperature settings for S1255PC here. In installations with several climate systems, temperat- Set the temperature (with room sensor installed ure settings can be made for each system.
  • Page 38 The sensor in each climate system that is furthest from right-hand side of the symbol on home screen heat- the set temperature has control; S1255PC tries to keep ing/home screen cooling. the temperature up in the room whose sensor is furthest from the set value.
  • Page 39 Set the minimum temperature on the supply temperat- increment. ure to the climate system. This means that S1255PC never calculates a temperature lower than that set here. NIBE S1255PC Chapter 9 | Control - Menus...
  • Page 40 Supply temp Set the minimum temperature on the supply temperat- Setting range: 5 – 80 °C ure to the climate system. This means that S1255PC never calculates a temperature lower than that set here. Own curve, cooling If there is more than one climate system the setting can be made separately for each system.
  • Page 41 Caution Wait 24 hours before making a new setting, so that the room temperature has time to sta- bilise. NIBE S1255PC Chapter 9 | Control - Menus...

  • Page 42: Menu 2 - Hot Water

    The remaining time for the selected setting is MENU 2.5 - HOT WATER CIRCULATION shown to the right. When the time has run out, S1255PC returns to the set Run time demand mode. Setting range: 1 – 60 min Select "Off"...

  • Page 43: Menu 3 - Info

    Setting range: 1 – 5 years Here, you can see a diagram showing how much energy S1255PC supplies and consumes. You can select which parts of the installation will be included in the log. It is also possible to activate display of indoor and/or outdoor temperature.

  • Page 44: Menu 4 - My System

    Alternative: Heating Manual "Compressor" is the unit that produces heating and hot The operating mode for S1255PC is normally set to water for the home. You cannot deselect "compressor" "Auto". It is also possible to use additional heat only. in manual mode.
  • Page 45 Caution If you deselect "addition" it may mean that in- Range sufficient hot water and/or heating in the ac- Here you select where (which zone) S1255PC is in- commodation is achieved. stalled. Contact your electricity supplier to find out which MENU 4.2 - PLUS FUNCTIONS...
  • Page 46 Alternative: Price / CO NOTE If Smart Energy Source™ is activated S1255PC priorit- ises how / to what extent each docked energy source This option locks after 24 hours, restart of dis- will be used. Here you can select whether the system play or program updating.
  • Page 47 Caution After factory setting, personal settings such as heating curves must be reset. NIBE S1255PC 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 S1255PC...

  • 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 S1255PC 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 S1255PC...
  • Page 51 Continuous: Continuous operation. Auto: The heating medium pump runs according to the 10 days continuous: Continuous operation for 10 days. current operating mode for S1255PC. The pump then changes to intermittent operation. Intermittent: The heating medium pump starts approx. 20 seconds before and stops 20 seconds after the compressor.
  • Page 52 Minimum brine temperature out Setting range S1255PC-6 3x400 V: 0 - 6.5 kW Setting range: -12 – 15°C Setting range S1255PC-12 & -16 3x400 V: 0 - 9 kW Maximum brine temperature in Setting range: 10 – 30 °C Here you set the max electrical power for the internal...
  • Page 53 Cooling at room over temp Setting range: 0.5 – 10.0 °C Time between cooling and heating Setting range: 0 – 48 h You can use S1255PC to cool the house during hot periods of the year. NIBE S1255PC Chapter 9 | Control - Menus...
  • Page 54 Heating/cooling sensor An extra temperature sensor can be connected to Immersion heater output S1255PC in order to determine when it is time to switch between heating and cooling operation. Setting range 1X230V: 4 – 7 kW When several heating/cooling sensors have been in- Setting range 3X400V: 4 –...
  • Page 55 Setting option: on/off is the multi-installation’s main unit. In systems with only one heat pump, S1255PC will be the main unit. If there Degree minutes are a measurement of the current is another main unit in the installation, you enter the ID heating requirement in the house and determine when that S1255PC will have.
  • Page 56 (EB100 = Main unit, EB101 = Heat pump Here, you can name the heat pumps that are connected 1, etc.). to S1255PC. Hot water charging. MENU 7.3.4 - DOCKING For a multi-installation: hot water with the...
  • Page 57 NOTE MENU 7.7 - START GUIDE During active underfloor drying, the heating When S1255PC is started for the first time, the start medium pump runs at 100 %, regardless of guide is automatically activated. From this menu, you the setting in menu 7.1.2.2.

  • Page 58: Service

    Emergency mode is used in event of operational inter- ference and in conjunction with service. You can activate the emergency mode both when S1255PC is running and when it is switched off. When the emergency mode is active, the status lamp turns yellow.
  • Page 59 Draining the heating medium system in the heat pump Draining the brine system in the heat pump If S1255PC requires servicing, drain the heating medium If the heat pump requires servicing, drain the brine sys- side as follows: tem by:...
  • Page 60 42.89 2.976 It is often easier to start the circulation pump with 33.02 2.889 S1255PC running. If the circulation pump is helped to 25.61 2.789 start with S1255PC running, be prepared for the screwdriver to jerk when the pump starts.
  • 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 S1255PC Chapter 10 | Service...
  • Page 62 Menu 8.2 - Logging Setting range: 1 s – 60 min Here you can choose how current measurement values from S1255PC should be saved onto a log file on the USB memory. Set the desired interval between loggings. Select "Start logging".
  • Page 63 Menu 8.3 - Manage settings Here you can manage (save as or retrieve from) all the menu settings (user and service menus) in S1255PC with a USB memory. The menu settings can be saved to the USB memory using "Save settings", in order to restore them later or to copy the settings to another S1255PC.

  • Page 64: Disturbances In Comfort

    • The temperature limiter in S1255PC (FQ10). play. S1255PC has no contact with the outdoor temperature sensor. Calculated flow line temperature is set to min. flow line. If a higher temperature is desired then min. flow line can be temporarily changed in menu 1.30.4. Check the •...
  • Page 65 • There is no heating or cooling demand. • Too low set value on the automatic heating control. – S1255PC does not call on heating, cooling or hot water. – Go to home screen heating or menu 1.30.1 (Curve, heat- •...

  • Page 66: Accessories

    Part no. 057 245 POOL HEATING POOL 40 EXHAUST AIR MODULE FLM S45 POOL 40 is used to enable pool heating with S1255PC. FLM S45 is an exhaust air module designed to combine Part no 067 062 recovery of mechanical exhaust air with ground source heating.
  • Page 67 ROOM UNIT RMU S40 The room unit is an accessory that allows the control and monitoring of S1255PC 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 S1255PC...

  • Page 69: Electrical Data

    400V 3N ~ 50Hz Max operating current including 0 kW immersion heater (Recommended fuse rating). 12(16) Max operating current including 0.5 – 6.5 kW immersion heater (Recommended fuse rating). 16(16) Additional power 0.5/1/1.5/2/2.5/3 /3.5/4/4.5/5/5.5/6/6.5 NIBE S1255PC Chapter 13 | Technical data...

  • Page 70: Technical Specifications

    °C see diagram Min. outgoing brine temp. °C Heating medium circuit Min/Max system pressure heating medium 0.05 (0.5 bar) / 0.45 (4.5 bar) Nominal flow 0.08 Max external avail. press at nom flow Chapter 13 | Technical data NIBE S1255PC...
  • Page 71 Incoming brine temp, °C Köldbärare in, temperatur Framledning Flow pipe Returledning Return pipe Caution °C For operation of S1255PC above 75% com- Köldbärare in, temperatur Köldbärare in Incoming brine temp, °C Framledning Flow pipe (°C) pressor speed, unlocking in menu 5.1.24 is re-...
  • Page 72 Dimensionering kompr. hastighet för F1155-1255 -6 kW. shows approximate compressor speed. Avgiven värmeeffekt Specified heating output, kW 100% °C Köldbärare in, temperatur Incoming brine temp, °C Cooling mode Caution To dimension heating dump, see the diagram for heating operation. Chapter 13 | Technical data NIBE S1255PC...

  • Page 73: Energy Labelling

    Energy labelling INFORMATION SHEET Supplier NIBE AB Model S1255PC-6 1x230 V Temperature application °C 35 / 55 Declared load profile for water heating Seasonal space heating energy efficiency class, aver- A++ / A++ age climate Water heating energy efficiency class, average climate...
  • Page 74 DATA FOR ENERGY EFFICIENCY OF THE PACKAGE Model S1255PC-6 1x230 V Temperature application °C 35 / 55 Controller, class Controller, contribution to efficiency Seasonal space heating energy efficiency of the 204 / 154 package, average climate Seasonal space heating energy efficiency class of the...
  • Page 75 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 NIBE S1255PC Chapter 13 | Technical data...
  • Page 76 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 S1255PC...

  • Page 77: Item Register

    Diagram, passive cooling output, 72 Possible selection for AUX inputs, 22 Dimensions and pipe connections, 13 Possible selection for AUX output (potential free Dimensions and setting-out coordinates, 68 variable relay), 23 Possible selections for AUX output, 23 NIBE S1255PC Item register...
  • Page 78 Temperature sensor, external flow line, 20 Possible selections for AUX output, 23 Temperature sensor data, 60 Post adjustment and bleeding, 28 The heat pump design, 10 Pump adjustment, automatic operation, 28 Component list cooling section, 11 Item register NIBE S1255PC...
  • Page 79 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 S1255PC Item register...

  • Page 83: Contact Information

    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 84 WS release date: 2019-10-28 15:02 Publish date: 2019-12-18 07:30 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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