NeoRe 8TG HP User Manual
Heat pump air-water
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Summary of Contents for NeoRe 8TG HP
- Page 1 User manual NeoRé TG Heat pump air-water NeoRé TG NeoRé 8TG NeoRé TG NeoRé TG NeoRé 8TG HP NeoRé TG HP NeoRé TG HP NeoRé 6TG HP All rights and changes reserved. Last update .8. - .....
- Page 2 Quick start The quick start guide can only be used if the heat pump installation has been completed, properly started and tested by the installation company. Division and description of the basic control screen . Object section - Displays heating / cooling mode, building temperature, circulating pump operation and building states. To turn the heating and cooling on and off, use the H/C button.
- Page 3 Winter operation On the Overview screen, switch on the H/C icon (the rectangle on the button is orange). You can set the equithermal curve in a simplied mode after pressing the house icon in the rst column. It is the SIMPLE NEO function.
- Page 4 For experts: More accurate but complex setting of the equithermal curve according to Table on page can be made in the Object settings. Then use automatic equithermal curve correction to adjust the heating water temperature according to your needs. Equithermal setting Heating water temperature for: Outdoor temperature...
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Page 5: Table Of Contents
Contents Safety instructions . Safety warning ............... - Page 6 Disposal of the device . Disposal of the packaging .............
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Page 7: Safety Instructions
. Safety instructions . Safety warning Read the manual carefully before installing, putting into operation or maintaining the device. Adherence to the described procedures for the installation and operation of the device is important for long-term and trouble-free operation. Faults and defects caused by non-compliance with the safety instructions, installation procedures and operating rules will not be taken into account, not even damage or destruction of other related equipment. -
Page 8: Legal Conditions
In case of re, disconnect the device from the mains and extinguish with a snow or powder re extinguisher. In the event of a heating water leak, turn off all circuit breakers located on the indoor unit and contact your service organization. -
Page 9: Storage And Transport Conditions
. Storage and transport conditions Indoor unit NeoRé IU 6- or IU 8-6 Environment dust-free, non-aggressive Temperature range - to 45°C Relative humidity max % Outdoor unit OU GMx or OU GPx Environment dust-free, non-aggressive Temperature range - to 45°C Relative humidity max % ... -
Page 10: Product Designation
. Product specication . Product designation The NeoRé series heat pump is designed for heating family houses or smaller industrial buildings. The product is intended for connection to a low-temperature heating system. The ideal heating system is mainly oor, wall and ceiling heating. Connection of conventional wall-mounted radiators is possible, but it is limited by the maximum heating water outlet temperature 55°C. -
Page 11: Outdoor Unit Description
controls the operation of the heat pump itself, but also takes care of the thermal comfort inside your building. It provides cascade control of the heat pump together with a bivalent source, which switches on the bivalent source in two stages when the heat pump’s power is insufcient. -
Page 12: Table Of Technical Parameters
.6 Table of technical parameters Figure .: Table of technical parameters ... -
Page 13: Principle Of Operation And Correct Use
. Principle of operation and correct use . Principle of heat pump operation The basic prerequisite for the operation of a heat pump is a heat transfer medium with suitable properties for changing the state at a given pressure and temperature. All these basic components are indicated in the gure below – Schematic diagram of the heat pump operation. -
Page 14: Low-Temperature Heating System
.. Low-temperature heating system Examples of a low-temperature heating system: • oor heating • ceiling heating/cooling • wall heating Large-area radiant systems are best suited for use with a heat pump. The heat pump is maximally efcient with these systems and its service life is longer. They are also the most comfortable type of heating for habitable rooms. With these systems, it is possible to induce natural thermal comfort and avoid heat build-up and large thermal differences upwards, as is the case with traditional convective heating systems. -
Page 15: Description Of The User Interface
. Description of the user interface Before making changes to the device settings, carefully read what each function means and what the settings affect. Improper adjustment can result in uncomfortable and uneconomical operation, which is associated with unnecessarily higher equipment wear and higher operating costs. .... -
Page 16: Overview
. Overview The overview screen (Fig. . page 6) is divided into four columns. In the rst column from the left, there is a section at the top in which the heating mode is displayed (heating – red, cooling – blue). Furthermore, it displays the current temperature of heating water, the operation of the circulating pump using a triangular pictogram and whether the silent mode is active (speaker icon). - Page 17 Figure .: Overview section More.. The Hours in use screen (g. . p. ) displays the counted running hours of the compressor (Comp.), bivalent source (Bival.), DHW heating with a heat pump (DHW heat.) and DHW reheating with an electric heater (DHW el. heat.) including disinfection.
- Page 18 Screen Energy - More (Fig. .6 page 8) displays optional equipment data: El. consumption - power consumption since the last energy reset. Curr. consumpt. - current consumption averaged over the last minutes. COP - current COP averaged over the last minutes. L1-L3 - current state of voltage and current on individual phases.
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Page 19: Meaning Of Graphic Symbols And Text Abbreviations
.. Meaning of graphic symbols and text abbreviations Heat pump operation – the heat pump is used for heating / cooling / DHW heating. Secondary source operation – the secondary source is used for heating, the heat pump is used for DHW heating Defrosting –... - Page 20 IQ cor. – correction value applied to the weather compensation curve nd circuit – opening value of the secondary circuit mixing valve W.com. – temperature calculated by the weather compensation curve for the secondary circuit Outp. – temperature of the output (heating) water for the secondary circuit Outdoor temperature –...
- Page 21 .. Simplied setting of the weather compensation curve – SIMPLE NEO Pressing the house icon on the Overview screen (Fig. . page 6) displays simplied setting of the weather compen- sation curve – SIMPLE NEO (Fig. .8 page ). In simplied setting of the weather compensation curve (SIMPLE NEO), you can nd: H/C is used to switch heating/cooling on or off like on the previous screen.
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Page 22: Object
. Object The right part of the screen (Fig. . Fig. ) is reserved for navigation. You can use the up arrow , down arrow and Menu buttons to scroll through the section windows. Next to the arrows is a slide that indicates which screen of the section is currently displayed. - Page 23 The permitted change value (value of the set coefcient) is related to speed of reaction to temperature changes. A higher coefcient means faster reactions, but too high a value can cause unpleasant temperature uctuations. Prim.w.comp.T °C shows the current calculated output water temperature. Click the orange square to move to the next screen, where you can adjust the weather compensation curve.
- Page 24 Weather compensation curve setting Heating water temperature for: Outdoor temperature Floor heating Radiators 19°C 22°C 25°C 6°C 28°C 40°C 7°C 33°C 45°C 20°C 38°C 50°C Table .: Weather compensation curve setting The weather compensation curve must then be adjusted to match the nature of the heated building. For this tuning, use Automatic correction +/- 3°C .
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Page 25: Dhw
Attenuation time schedule allows you to set a decrease of the heating water output temperature. In the settings (Fig. . page ), there are two time slots available for each day of the week. Click on the orange rectangles to set the desired times. - Page 26 Figure .6: Building section – screen Dew point sensors Figure .: DHW section – screen DHW heating will be activated when the tank temperature drops to - = °C. DHW el. heat. delay hh:mm allows you to set the time after which hot water will be heated purely electrically. Elec- tric heating will be activated only if the hot water tank does not reach the desired temperature in the set time.
- Page 27 Figure .8: DHW section – screen DHW power limit % allows you to set the power of the heat pump to heat hot water in the DHW tank. DHW biv. limit °C allows you to set the outdoor temperature below which hot water is heated only by the electric heater.
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Page 28: Graphs
Next follows the Programm Required T . The set range of two time periods of each day of the week is valid for Required DHW temperature , outside of these time periods Reduced DHW temperature . When Optimization by PPV is turned on and a signal comes from the FVE (the FVE has surpluses that you want to use), the DHW Optimization to Reduced temperature is turned off and the water is heated to the Desired DHW temperature value. - Page 29 Figure .: Settings section – screen On the second screen of the settings section (Fig. . page ), the rst item Date / time can be used to set the date and time of the device. This is important for the correct operation of time programs. Webserver –...
- Page 30 Figure .: Settings section – screen Network settings The second screen (Fig. . page ) contains settings for Neota Route (cloud) . This service is described in more detail in Chapter . - Neota Route (cloud) (page ). The rst item NR server sets the address of the Neota Route server.
- Page 31 Figure .: Settings section – screen Network settings Figure .6: Settings section – screen Network settings E-mail settings The second screen of e-mail settings shows statistics about the sent error e-mails. The rst item Send test email can be used to send a test e-mail.
- Page 32 Figure .8: Settings section - screen Network settings Wlan settings Figure .: Settings section – screen Language settings Figure .: Settings section – screen Silent mode Silent mode allows you to activate/deactivate the silent mode. Only during attenuation enables the silent mode only during the attenuation time.
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Page 33: More
Figure .: Settings section - screen PPV settings the PV plant. At setting , the outdoor unit is practically switched off until the signal from the PV system arrives. When there is a signal from the FVE, the outdoor unit of the heat pump always runs at the required output. Figure .: Settings section - screen ... - Page 34 Figure .: More section – screen decrease before heating is reactivated. T pool heating water sets the value of temperature by which the pool water will be heated. A higher value means the desired temperature will be reached faster, but too high a temperature will reduce the efciency of the heat pump. Pool heating time schedule can be used to set the time intervals in which the pool is to be heated.
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Page 35: Web Server Operation
• The default IP address of the heat pump is 192.168.134.176 • The user name is “neore” and the password is “neore” This address and other settings can be changed in the Settings section in the heat pump controller. -
Page 36: Simply Neo Mobile Application
The second method is to set the network parameters manually in the Network settings section – screen Network settings (Fig. . page ). This method requires at least basic knowledge of computer networks. Then follow the instructions in the “Web server operation” chapter .8 page . ... -
Page 37: Commissioning
. Commissioning . Commissioning of the heating system Before starting the circulating pump, the circuit must be lled with water. Water should be lled to a basic pressure of –. bar. From a water column height of m, the basic pressure increases by . bar per metre of height. The maximum water column height is 8 m. -
Page 38: Short-Term Shutdown
6. Shutdown Attention! When shutting down the system completely, the heating system and the heat pump can be damaged or completely destroyed in winter due to freezing. 6. Short-term shutdown If you need to turn off the heat pump briey, press H/C and/or DHW so that the orange indicator in the upper right corner of the button turns grey. -
Page 39: Faults And Status Messages
. Faults and status messages . Error code structure A fault code consists of four digits. The rst two digits indicate critical errors. These are faults that cause the heat pump to stop running. The other two digits indicate the status of the connected temperature sensors. Faults of temperature sensors do not affect the operation of the heat pump. -
Page 40: Faults And Troubleshooting
- Faulty temperature sensor of return (input) water – the sensor is short-circuited If the value of the second digit is not , the heat pump stops running. rd digit - No fault - Faulty outdoor temperature sensor – the sensor is disconnected ... - Page 41 During the operation of the heat pump, cooling of the heat exchanger of the outdoor unit causes it to freeze. When the evaporator is frozen, the outdoor unit automatically evaluates this state and starts the defrosting process. The frequency of defrost cycles depends on several factors, the most important of which are air temperature, humidity and required power.
- Page 42 Fault xxx Fault of the outdoor unit or communication. The outdoor unit signals a fault state. If this fault occurs once, it is advisable to try to restart the entire system by switching off all heat pump circuit breakers and switching them on again. If the outdoor unit or communication fault persists after the user interface restarts, call a service organization.
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Page 43: Status Messages
Fault The error is displayed if a refrigerant leak detector is tted and there is a leak of 6g/m or more. Subsequently, the entire machine stops. In the event of this failure, a service organization must be contacted. . Status messages ... -
Page 44: Protective Functions
unchanged. To correct this, contact a service organization. Status xxx and xxx This status means that the secondary circuit temperature sensor is disconnected or faulty. If your installation includes a secondary heating circuit, this circuit is stopped until the fault is removed. However, other circuits of the heat pump remain unchanged. - Page 45 This protection is linked to the autoreset function. Flow monitoring – monitoring of critical ow If during the operation of the circulating pump the ow value drops below l/h (xed value) or below the min. ow according to Figure Minimum water ow for individual power types in the Installation Manual, ch. Hydraulic Circuit, a ow error is triggered and the circulating pump automatic venting program is started.
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Page 46: Service Organization
By default, this protection is not active (set to zero time), but it is recommended to set this protection in installations where longer power outages often occur. This protective function can be set in the service settings under “Delayed start”. Output water temperature limits It limits the user setting of desired temperatures to a pre-set range. -
Page 47: Maintenance Of The Device And Components
8. Maintenance of the device and components Thanks to its design, the heat pump is easy to maintain. Basic maintenance is to be performed by a service organization during regular annual inspection. During this inspection, the service organization shall check all important parts of the heat pump, especially the operation of the refrigerant circuit. -
Page 48: Maintenance Of The Dhw Tank
We recommend having the entire heat pump inspected regularly once a year by a service technician of the installation company. Maintenance and cleaning of all components must be performed in the non-powered state. 8. Maintenance of the DHW tank To maintain the correct and, above all, efcient operation of the DHW tank, check the sediment content in the tank at least once every ... -
Page 49: Maintenance Plan
8. Maintenance plan Check failures, status messages, operation Clean heating water filters, check the flow of heating water Check the pressure of expansion tank Check the safety valve function Check, desludge the DHW tank Check, replace the DHW tank anode rod – enamel tank Check, replace the DHW tank anode rod –... - Page 50 . Disposal of the device . Disposal of the packaging The EKO-KOM system is based on the cooperation of industrial enterprises (clients), cities and municipalities. This non- prot system ensures that waste from packaging is sorted by the consumer, collected by collection vehicles, resorted and nally used as a secondary raw material.
- Page 51 . Manufacturer contact MANUFACTURER NEOTA CZ s.r.o. Štefánikova /8 6 Brno, Czech Republic Company ID No. VAT ID No. CZ ESTABLISHMENT NEOTA CZ s.r.o. Jankovice 6 Holešov, Czech Republic Phone: + 8 E-mail: support@neota.cz ...