Nibe F750 User Manual
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Nibe F750 User Manual

Exhaust air heat pump
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User manual

NIBE™ F750
Exhaust air heat pump
UHB GB 1437-1
231918

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  • Page 1: User Manual

    User manual NIBE™ F750 Exhaust air heat pump UHB GB 1437-1 231918...
  • Page 2 A detailed explanation of the button functions can be found on page How to scroll through menus and make different settings is described on page 18. The mode for setting the indoor temperature is reached, when in the start mode in the main menu, by pressing the OK button twice. Read more about the settings on page 33.

  • Page 3: Table Of Contents

    2 The heat pump – the heart of the house Heat pump function Contact with F750 Maintenance of F750 3 F750 – at your service Set the indoor climate Set the hot water capacity Get information Adjust the heat pump...

  • Page 4: Important Information

    Extra hot water heater VPB(S) (fan speed, normal mode) Serial number must always be given Certification that the installation is carried out according to instructions in NIBE's installer manual and applicable regulations. Date __________________ Signed _________________________ Chapter 1 | Important information NIBE™...

  • Page 5: Safety Information

    Rights to make any design or technical modifications are reserved. ©NIBE 2014. NOTE F750 must be installed via an isolator switch with a minimum breaking gap of 3 mm. NOTE If the supply cable is damaged, only NIBE, its service representative or similar authorised person may re- place it to prevent any danger and damage.
  • Page 6 This symbol indicates tips on how to facilitate using the product. Chapter 1 | Important information NIBE™ F750...
  • Page 7 Marking F750 is CE marked and fulfils IP21. The CE marking means that NIBE ensures that the product meets all regu- lations that are placed on it based on relevant EU directives. The CE mark is obligatory for most products sold in the EU, regardless where they are made.

  • Page 8: Serial Number

    The serial number can be found at the bottom right of the front cover and in the info menu (menu 3.1). Caution Always give the product's serial number (14 digits) when reporting a fault. Chapter 1 | Important information NIBE™ F750...

  • Page 9: Contact Information

    Puh: 09-274 697 0 Fax: 09-274 697 40 E-mail: info@nibe.fi www.nibe.fi NIBE Energy Systems France Sarl, Zone industrielle RD 28, 01600 Reyrieux Tel : 03 88 06 24 10 Fax : 03 88 06 24 11 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...
  • Page 10 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: info@nibe.se www.nibe.se For countries not mention in this list, please contact Nibe Sweden or check www.nibe.eu for more information. Chapter 1 | Important information...

  • Page 11: F750 - An Excellent Choice

    F750 – An excellent choice F750 is part of a new generation of heat pumps, which have been intro- duced to supply your home with inexpensive and environmentally friendly heating. Heat production is safe and economical with integrated hot water heater, immersion heater, circulation pump and control system.

  • Page 12: The Heat Pump - The Heart Of The House

    Expansionsventil Kompressor Förångare -15 °C -5 °C -15 °C 22 °C The temperatures are only examples and may vary between different installations and time of year. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...

  • Page 13: Heat Pump Function

    The heating medium circulates in a closed system and transports the heated water's heat energy to the heat pump's integrated hot water heater and the radiators/heating coils of the house. Buffer vessel Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 14 It is then transported to the heating system of the house. The temperatures are only examples and may vary between different installations and time of year. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...

  • Page 15: Contact With F750

    Contact with F750 External information When the heat pump door is closed, information can be received via an information window and a status lamp. Information window The information window shows part of the display that is on the display unit (located behind the door to the heat pump). The information window can display different type of information, e.g.

  • Page 16: Display Unit

    Display unit There is a display unit behind the heat pump door, which is used to com- municate with F750. Here you: switch on, switch off or set the heat pump in emergency mode. sets the indoor climate and hot water as well as adjusts the heat pump to your needs.
  • Page 17 In this mode, the compressor switches off and the im- mersion heater engages. The heat pump display is not illuminated and the status lamp illuminates yellow. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...

  • Page 18: Menu System

    Display of temperature and other operating information and access to the alarm log. See page 52. HEAT PUMP Menu 4 Setting time, date, language, display, operating mode etc. See page 55. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 19 This symbol appears if lux mode for the hot water is activated. This symbol indicates whether "holiday setting" is activated in menu 4.7. This symbol indicates whether F750 has contact with NIBE Uplink™. This symbol indicates the actual speed of the fan if the speed has changed from the normal setting.

  • Page 20: Selecting Menu

    OK button. A new window then opens with sub menus. Select one of the sub menus by marking it and then pressing the OK button. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 21 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. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 22 4. Press the OK button to confirm the value you have set. To change and return to the original value, press the Back button. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 23 Back button. If a menu only has one character set the keyboard is displayed directly. When you have finished writing, mark "OK" and press the OK button. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 24 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 2 | The heat pump – the heart of the house NIBE™ F750...

  • Page 25: Maintenance Of F750

    Maintenance of F750 Regular checks Your heat pump requires minimal maintenance after commissioning. On the other hand, it is recommended that you check your installation regu- larly. If something unusual occurs, messages about the malfunction appear in the display in the form of different alarm texts. See alarm management on page 67.
  • Page 26 Cleaning the air filter Clean the F750's air filter regularly, how often depends on the amount of dust in the ventilation air. Select what is most suitable for your heat pump. You will receive a reminder about filter cleaning in the display. The default setting for the reminder is every three months, however, if the power to F750 is interrupted the countdown begins again.
  • Page 27 Safety valves F750 has two safety valves, one for the hot water heater and one for the climate system. The water heater's safety valve sometimes releases a little water after hot water usage. This is because the cold water, which enters the water heater, expands when heated causing the pressure to rise and the safety valve to open.
  • Page 28 F750, copper F750, stainless steel Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 29 The overflow cup should be checked in conjunction with checking the safety valves or once every three months and cleaned if necessary. F750, copper F750, stainless steel Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 30 Filling the climate system If the pressure is too low, increase as follows: 1. For F750, stainless steel: Check if the flexi hose supplied is connected between the two filler valves. Adjust the hose if this has not been done.
  • Page 31 F750, stainless steel Venting the climate system In event of repeated filling of the climate system or if bubbling sounds are heard from the heat pump the system may need venting. This is carried out as follows: 1. Set the switch in mode and wait approx.

  • Page 32: Saving Tips

    In the past it has been calculated that an average Swedish household has an approximate annual consumption of 5000 kWh domestic electri- city/year. In today's society it is usually between 6000-12.000 kWh/year. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 33 WC, 2 bulbs in the bathroom, 4 bulbs in the kitchen, 3 bulbs outside, a washing machine, tumble drier, fridge, freezer, oven, vacuum cleaner, engine block heater = 6240 kWh domestic electricity/year. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 34 After 1-2 years the heating curve should be adjusted again, as well as the heating curve offset and the building's thermostat valves, because the heating system, as a rule, requires a lower temperature once the drying process is complete. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...

  • Page 35: F750 - At Your Service

    3 F750 – at your service Set the indoor climate Overview Sub-menus For the menu INDOOR CLIMATE there are several sub-menus. Status information for the relevant menu can be found on the display to the right of the menus. temperature Setting the temperature for the climate system.
  • Page 36 If the exhaust air temperature falls below 16 °C, the compressor is blocked and the electrical addition is permitted to intervene. When the compressor is blocked heat is not recovered from the exhaust air. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 37 If necessary, the different return times can be changed in menu 1.9.6. The fan speed is shown in brackets (in percent) after each speed alternative. If longer time changes are required use the holiday function or scheduling. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 38: Heating Menu

    Activated: Scheduling for the selected period is activated here. Set times are not affected at deactivation. System: Which climate system the schedule is for is selected here. This alternative is only displayed if more than one climate system is present. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 39 Menu Increases or decreases in the ventilation to the accommodation can be 1.3.3 scheduled here for up to two time periods per day. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 40 Set the stop time earlier than the start time so that the period extends beyond midnight. Scheduling then stops at the set stop time the day after. Scheduling always starts on the date that the start time is set for. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 41: Advanced Menu

    It is from this heating curve that the heat pump's control computer determines the temperature of the water to the heating Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 42 +2 steps increases the supply temperature by 5 C at all outdoor temperatures. - 10 - 20 - 30 - 40°C UTETEMPERATUR Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 43 15, the greater the number, the steeper the slope and the greater the supply temperature. Heating curve 0 means that own curve (menu 1.9.7) is used. 5. Press the OK button to exit the setting. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 44: External Adjustment

    Connecting an external contact, for example, a room thermostat or a timer allows you to temporarily or periodically raise or lower the room temper- ature while heating. When the contact is on, the heat curve offset is Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 45: Min. Flow Line Temp

    Default value: 20 °C Set the minimum temperature on the supply temperature to the climate system. This means that F750 never calculates a temperature lower than that set here. If there is more than one climate system the setting can be made separately for each system.

  • Page 46: Fan Return Time

    Here you select the return time for temporary speed change (speed 1-4) on the ventilation in menu 1.2. Return time is the time it takes before ventilation speed returns to normal. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 47: Point Offset

    The heat curve is affected at ± 5 °C from set outdoor temp. point. It is important that the correct heating curve is selected so that the room temperature is experienced as even. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 48 4 until one of the conditions is no longer met. Caution Night cooling can only be activated when house heating has been deac- tivated. This is done in menu 4.2. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 49: Set The Hot Water Capacity

    Default value: "off" When hot water requirement has temporarily increased this menu can be used to select an increase in the hot water temperature to lux mode for a selectable time. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 50: Comfort Mode

    The function is activated immediately when a time period is selected and confirmed using the OK button. The remaining time for the selected setting is shown to the right. When the time has run out F750 returns to the mode set in menu 2.2. Select “off" to switch off temporary lux...
  • Page 51 Conflict: If two settings conflict with each other a red exclamation mark is displayed. If you wish to set similar scheduling for every day of the week start by filling in “all” and then changing the desired days. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 52 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. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 53: Hot Water Recirc

    "operating time" decide how long the hot water circulation pump must run per operating instance. "downtime" decide how long the hot water circulation pump must be stationary between operating instances. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 54: Get Information

    The information is on several pages. Turn the control knob to scroll between the pages. Symbols in this menu: Com- Heating pressor Addi- Hot wa- tion Circula- Ventila- tion tion pump, climate system Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 55 No changes can be made. The information is on several pages. Turn the control knob to scroll between the pages. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 56: Indoor Temp. Log

    4. You can now select to take read outs for different weeks by turning the control knob to the right or left and read off the average temper- ature. 5. Press the OK or Back button to exit read off mode. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 57: Adjust The Heat Pump

    " off". advanced Setting heat pump work mode. plus functions Menu Settings for any additional functions installed in F750 can be made in the sub menus. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 58: Nibe Uplink

    Request new connection string To connect a user account on NIBE Uplink™ to your installation, you must request a unique connection string. 1. Mark “request new connection string" and press the OK button.
  • Page 59 HTTP Basic and HTTP Digest type. If unsure about applicable settings use the preset settings or contact your network administrator (or similar) for further information. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 60: Operating Mode

    Telephone numbers provided must be able to receive SMS messages. operating mode Menu operating mode Setting range: auto, manual, add. heat only Default value: auto functions Setting range: compressor, addi- tion, heating Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 61 Caution If you deselect "addition" it may mean that insufficient hot water and/or heating in the accommodation is achieved. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 62: My Icons Menu

    Menu You can select what icon should be visible when the door to F750 is closed. You can select up to 3 icons. If you select more, the ones you selected first will disappear. The icons are dis- played in the order you selected them.

  • Page 63: Holiday Setting

    If the exhaust air temperature falls below 16 °C, the compressor is blocked and the electrical addition is permitted to intervene. When the compressor is blocked heat is not recovered from the exhaust air. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 64 The indicator marks where in the cycle the heat pump is. If 0 minutes is selected it means that requirement is not prioritised, but will only be activated when there is no other requirement. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 65: Auto Mode Setting

    Setting range: -1000 – -30 Default value: -60 start diff additional heat Setting range: 100 – 1000 Default value: 700 diff. between additional steps Setting range: 0 – 1000 Default value: 50 Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 66: Factory Setting User

    The compressor can be scheduled to be blocked for up to two different time periods here. When scheduling is active the actual blocking symbol in the main menu on the heat pump symbol is displayed. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 67 Blocking the compressor. Blocking additional heat. If you wish to set similar scheduling for every day of the week start by filling in “all” and then changing the desired days. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 68 Scheduling then stops at the set stop time the day after. Scheduling always starts on the date that the start time is set for. Caution Long term blocking can cause reduced comfort and operating economy. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 69: Disturbances In Comfort

    This can mean that the heat pump's compressor is not running. In this case the immersion heater produces heat and/or hot water. Chapter 4 | Disturbances in comfort NIBE™ F750...

  • Page 70: Troubleshooting

    (temporary lux) can be activated 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. Chapter 4 | Disturbances in comfort NIBE™ F750...

  • Page 71: Low Room Temperature

    Open the valve (contact your installer for assistance in finding them). Filter blocked. Clean or replace filter (see page 24). High room temperature Too high set value on the automatic heating control. Chapter 4 | Disturbances in comfort NIBE™ F750...

  • Page 72: High Or Distracting Ventilation

    The heat pump defrosts. Temperature conditions tripped. Wait until the temperature condition has been reset. Minimum time between compressor starts has not been reached. Wait 30 minutes and check if the compressor has started. Chapter 4 | Disturbances in comfort NIBE™ F750...
  • Page 73 Alarm tripped. Follow the display instructions. Chapter 4 | Disturbances in comfort NIBE™ F750...

  • Page 74: Technical Data

    5 Technical data Detailed technical specifications for this product can be found in the in- stallation manual (www.nibe.eu). Chapter 5 | Technical data NIBE™ F750...

  • Page 75: Glossary

    A malfunction in the heat pump can sometimes be noticed in the form of a disturbance in comfort. Chapter 6 | Glossary NIBE™ F750...

  • Page 76: Domestic Hot Water

    F750. Exhaust air devices Vents, usually in the ceiling, in the kitchen/bathroom/clothes closet where the air is drawn in to be forwarded to F750. Expansion valve Valve that reduces the pressure of the refrigerant, whereupon the temper- ature of the refrigerant drops.

  • Page 77: Heating Medium Side

    Pressure switch that triggers an alarm and/or stops the compressor if non- permitted pressures occur in the system. A high pressure pressostat trips if the condensing pressure is too great. A low pressure pressostat trips if the evaporation pressure is too low. Chapter 6 | Glossary NIBE™ F750...

  • Page 78: Safety Valve

    Radiator Another word for heating element. They must be filled with water in order to be used with F750. Refrigerant Substance that circulates around a closed circuit in the heat pump and that, through pressure changes, evaporates and condenses. During evap- oration, the refrigerant absorbs heating energy and during condensing, gives off heating energy.

  • Page 79: Index

    Item register Adjust the heat pump, 55 Important information, 2 Alarm, 67 Contact information, 7 F750 – An excellent choice, 9 Back button, 15 Installation data, 2 Serial number, 6 Information window, 13 Contact information, 7 Installation data, 2 Contact with F750, 13...
  • Page 80 The heat pump – the heart of the house, 10 Use the virtual keyboard, 21 Troubleshooting, 68 Chapter 7 | Item register NIBE™ F750...
  • Page 84 NIBE AB Sweden Hannabadsvägen 5 Box 14 SE-285 21 Markaryd info@nibe.se www.nibe.eu 231918...

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