Nibe F750 User Manual
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Nibe F750 User Manual

Exhaust air
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User manual

NIBE™ F750
Exhaust air heat pump
UHB GB 1121-1
031944

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Summary of Contents for Nibe F750

  • Page 1: User Manual

    User manual NIBE™ F750 Exhaust air heat pump UHB GB 1121-1 031944...
  • Page 2 A detailed explanation of the button functions can be found on page 12. How to scroll through menus and make different settings is described on page 16. The mode for setting the indoor temperature is reached, when in the start mode in the main menu, by pressing the OK button twice.

  • 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

    VPB(S) (fan speed, normal mode) Installed electrical output 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...

  • Page 5: Safety Information

    This symbol indicates danger to machine or person. Caution This symbol indicates important information about what you should observe when maintaining your installation. This symbol indicates tips on how to facilitate using the product. Chapter 1 | Important information NIBE™ F750...

  • Page 6: Serial Number

    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 when reporting a fault. Chapter 1 | Important information NIBE™ F750...

  • Page 7: Contact Information

    Tel: +43 (0)7662 8963-0 Fax: +43 (0)7662 8963-44 E-mail: mail@knv.at www.knv.at NIBE Wärmetechnik AG, Winterthurerstrasse 710, CH-8247 Flurlingen Tel: (52) 647 00 30 Fax: (52) 647 00 31 E-mail: info@nibe.ch www.nibe.ch Druzstevni zavody Drazice s.r.o, Drazice 69, CZ - 294 71 Benatky nad Jizerou Tel: +420 326 373 801 Fax: +420 326 373 803 E-mail: nibe@nibe.cz...
  • Page 8 For countries not mention in this list, please contact Nibe Sweden or check www.nibe.eu for more information. Chapter 1 | Important information NIBE™ F750...

  • Page 9: F750 - An Excellent Choice

    F750 – An excellent choice F750 is part of a new generation of heat pumps, which have been introduced 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 10: 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 11: Heat Pump Function

    The heating medium circulates in a closed system and transports the heated wa- ter's heat energy to the heat pump's integrated hot water heater and the radiat- ors/heating coils of the house. Buffer vessel Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 12 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 13: Contact With F750

    Contact with F750 External information When the heat pump door is closed, information can be received via an in- formation 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).

  • Page 14: Display Unit

    Display unit There is a display unit behind the heat pump door, which is used to commu- nicate 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 15: Back Button

    In this mode, the compressor switches off and the immersion 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 16: Menu System

    Display of temperature and other operating information and access to the alarm log. See page 56. HEAT PUMP Menu 4 Setting time, date, language, display, operating mode etc. See page 61. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...

  • Page 17: Symbols In The Display

    3.1 that you should note. These two symbols indicate whether the compressor or addition is blocked in F750. These can, for example, be blocked depending on which oper- ating mode is selected in menu 4.2, if blocking is scheduled in menu 4.9.5 or if an alarm has occurred that blocks one of them.

  • Page 18: 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 19: Selecting Options

    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 2 | The heat pump – the heart of the house NIBE™ F750...

  • Page 20: Setting A Value

    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 21: Scroll Through The Windows

    Use the control knob to select the help symbol. 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 22: 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 regularly. If something unusual occurs, messages about the malfunction appear in the display in the form of different alarm texts. See alarm management on page Service hatch Behind the service hatch are the safety valves, circulation pump etc.

  • Page 23: Cleaning The Air Filter

    Even if the filter appears clean, dirt collects in it and this affects the efficiency of the filter. Therefore, replace it after 2 years. New filters can be ordered via the installer. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 24 Check pressure F750 has a pressure gauge which shows the heating system pressure. The pressure should be between 0.5 and 1.5 bar, but varies during temperature changes. If the pressure drops to 0 or rises to 2.5 frequently, contact your installer for troubleshooting.

  • Page 25: Safety Valves

    The climate system may need to be refilled after checking the safety valve, see the section “Filling the climate system”. F750, copper Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 26 F750, stainless steel Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 27 Open the filling valves After a while the pressure rises on the pressure gauge. When it is approx. 1.0 bar close the filler valve. F750, copper F750, stainless steel Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 28 The vent hoses from the container must be drained of water before air can be released. This means that the system is not necessarily vented despite the flow of water when the vent valves are opened. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...

  • Page 29: Saving Tips

    If you activate "Hot water Economy", less energy is used. Power consumption Energiförbrukning fördelat över året mars april juni juli Månad Increasing the indoor temperature one degree increases power consumption by approx. 5%. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 30 Engine block heater (Operation: 1 h/day, 4 months a year) Passenger compartment heater (Operation: 1 h/day, 4 months a year) These values are approximate example values. Chapter 2 | The heat pump – the heart of the house NIBE™ F750...
  • Page 31 Chapter 2 | The heat pump – the heart of the house NIBE™ F750...

  • Page 32: 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 inform- ation for the relevant menu can be found on the display to the right of the menus.
  • Page 33 Use the control knob to set a new value. Confirm the new setting by pressing the OK button. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 34 If it is warm outdoors and the room temperature is too low, increase the value in menu 1.1 by one increment. If it is warm outdoors and the room temperature is too high, reduce the value in menu 1.1 by one increment. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 35 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 36: Heating Menu

    If two settings conflict with each other a red exclamation mark is displayed at the end of the line. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 37 °C. 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 38 Day: Select which day or days of the week the schedule is to apply to here. To remove the scheduling for a particular day, the time for that day must be Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 39: Advanced Menu

    Setting the heating curve slope. external adjustment Setting the heat curve offset when the external contact is connected. min. flow line temp. Setting minimum permitted flow line temperature. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 40: Heating Curve

    It is from this heating curve that the heat pump’s control computer determines the temperature of the water to the heating system, flow line temperature, and therefore the indoor temperature. You can select heating Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 41 +2 steps increases the supply temperat- ure by 5 °C at all outdoor temperat- ures. - 10 - 20 - 30 - 40°C UTETEMPERATUR Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 42 Select a new heating curve. The heat curves are numbered from 0 to 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. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 43 If it is warm outdoors and the room temperature is too low, increase the curve offset by one increment. If it is warm outdoors and the room temperature is too high, lower the curve offset by one increment. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 44: External Adjustment

    If a room sensor is installed and activated the desired room temperature (°C) is set. If there is more than one climate system the setting can be made separately for each system. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 45: Min. Flow Line Temp

    Default values: 20°C Set the minimum temperature on the supply temperature to the climate sys- tem. 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: Room Sensor Settings

    A higher value gives a greater change of the heating curve's set offset. If several climate systems are installed the above settings can be made for the relevant systems. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 47: 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 48 You can create your own heating curve here, if there are special requirements, by setting the desired supply temperatures for different outdoor temperatures. Caution Curve 0 in menu 1.9.1 must be selected for this curve to apply. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 49: Point Offset

    If it is cold in the house, at, for example -2 °C, "outdoor temp. point" is set to "-2" and "change in curve" is increased until the desired room temperat- ure is maintained. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 50 ("min diff. outdoor-exhaust") and the exhaust air temperature is higher than the set value ("start temp. exhaust air") run the ventilation at speed 4 until one of the conditions is no longer met. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 51 Caution Night cooling can only be activated when house heating has been deactivated. This is done in menu 4.2. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 52: Set The Hot Water Capacity

    "holiday setting" displays if vacation setting is in progress (menu 4.7), otherwise it displays "off". advanced Setting periodic increase in the hot water temperature. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 53 OK button. The time to the right displays the remaining time at the selected setting. When the time has run out F750 returns to the mode set in menu 2.2. Select “off" to switch off temporary lux Chapter 3 | F750 –...

  • Page 54: Comfort Mode

    Scheduling is activated/deactivated by ticking/unticking"activated". Set times are not affected at deactivation. If two settings conflict with each other a red exclamation mark is displayed. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 55 If the stop time is before the start time it means that the period extends past midnight. Scheduling always starts on the date that the start time is set for. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 56: Periodic Increases

    Setting range: 00:00 - 23:00 Default value: 00:00 To prevent bacterial growth in the water heater, the compressor and the immersion heater can increase hot water temperature at regular intervals. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 57: 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 sta- tionary between operating instances. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 58: Get Information

    Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 59 No changes can be made. The information is on several pages. Turn the control knob to scroll between the pages. Symbols in this menu: Compressor Heating Addition Hot water Ventilation compressor info Menu Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 60 Information about the additional heat settings, operating 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 3 | F750 – at your service NIBE™ F750...
  • Page 61 You can see information for the 10 most recent alarms. To view the run status in the event of an alarm, mark the alarm and press the OK button. Information about an alarm. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 62: Indoor Temp. Log

    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 temperature. Press the OK or Back button to exit read off mode. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 63: Adjust The Heat Pump

    "set" is displayed if you set a Vacation schedule but it is not active now, "active" displays if any part of the Vacation schedule is active, otherwise it displays "off". advanced Setting heat pump work mode. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 64: Op. Mode Menu

    Operating mode manual In this operating mode you can select what functions are permitted. You cannot deselect "compressor" in manual mode. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 65: My Icons Menu

    Caution If you deselect "addition" it may mean that insufficient hot water and/or heating in the accommodation is achieved. my icons Menu Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 66: Time & Date

    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 displayed in the order you selected them.

  • Page 67: Holiday Setting

    Complete holiday setting about a day before your return so that room tem- perature and hot water have time to regain usual levels. Set the vacation setting in advance and activate just before departure in order to maintain the comfort. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 68 When the compressor is blocked heat is not recovered from the exhaust air. advanced Menu Menu advanced has orange text and is intended for the advanced user. This menu has several sub-menus. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 69 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 70: Auto Mode Setting

    You can also set the time over which (filtering time) the average temperature is calculated. If you select 0, the present outdoor temperature is used. Caution It cannot be set "stop additional heat" higher than "stop heating". Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 71 Caution Higher value on "start compressor" gives more compressor starts, which in- creases wear in the compressor. Too low value can give uneven indoor temperatures. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 72: Factory Setting User

    All settings that are available to the user (including advanced menus) can be reset to default values here. Caution After factory setting, personal settings such as heating curves, ventilation etc must be reset. Chapter 3 | F750 – at your service NIBE™ F750...

  • Page 73: Schedule Blocking

    Time period: The start and stop time for the selected day for scheduling are selected here. Blocking: The desired blocking is selected here. Blocking the compressor. Blocking additional heat. Chapter 3 | F750 – at your service NIBE™ F750...
  • Page 74 If the stop time is before the start time it means that the period extends past midnight. 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 75: Disturbances In Comfort

    In most cases it is enough to select "reset alarm" to correct the problem that caused the alarm. If a green light illuminates after selecting Chapter 4 | Disturbances in comfort NIBE™ F750...
  • Page 76 The status lamp will therefore continue to be red. If the alarm does not reset, contact your installer for suitable remedial action. NOTE Always gives the heat pump's serial number when contacting your installer. Chapter 4 | Disturbances in comfort NIBE™ F750...

  • Page 77: Troubleshooting

    Closed thermostats in several rooms. See the Saving tips section on page 27 and menu 1.1 on page 31 for more detailed information about how to best set the thermostats. Heat pump in incorrect operating mode. Chapter 4 | Disturbances in comfort NIBE™ F750...

  • Page 78: High Room Temperature

    1.9.1 (heating curve) needs to be adjusted down. External switch for changing the room heating activated. Check any external switches. Low system pressure Not enough water in the heating system. Top up the water in the heating system. Chapter 4 | Disturbances in comfort NIBE™ F750...

  • Page 79: High Or Distracting Ventilation

    The heat pump does not call on heating nor hot water. The heat pump defrosts. Minimum time between compressor starts has not been reached. Wait 30 minutes and check if the compressor has started. Alarm tripped. Follow the display instructions. Chapter 4 | Disturbances in comfort NIBE™ F750...

  • Page 80: Technical Data

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

  • Page 81: Glossary

    Compresses the gas state refrigerant. When the refrigerant is compressed, the pressure and the temperature increase. Condenser Heat exchanger where the hot gas state refrigerant condenses (cooled and becomes a liquid) and releases heat energy to the house heating and hot water systems. Chapter 6 | Glossary NIBE™ F750...

  • Page 82: 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 temperature of the refrigerant drops.

  • Page 83: Expansion Vessel

    Pipes to the house’s climate system make up the heating medium side. Hot water heater Container where domestic water is heated. Is located inside the heat pump, but an extra hot water heater can be installed in the event of large hot water requirements. Chapter 6 | Glossary NIBE™ F750...

  • Page 84: Room Sensor

    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 evaporation, the refrigerant absorbs heating energy and during condensing, gives off heating energy.
  • Page 85 Supply temperature The temperature of the heated water that the heat pump sends out to the heating system. The colder the outdoor temperature, the higher the supply line temperature becomes. Chapter 6 | Glossary NIBE™ F750...

  • Page 86: Item Register

    Item register Adjust the heat pump, 61 Important information, 2 Contact information, 5 Back button, 13 F750 – An excellent choice, 7 Installation data, 2 Serial number, 4 Contact information, 5 Information window, 11 Contact with F750, 11 Installation data, 2...
  • Page 88 NIBE AB Sweden Hannabadsvägen 5 Box 14 SE-285 21 Markaryd info@nibe.se www.nibe.eu 031944...

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