MYPV AC-THOR Operation Manual
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MYPV AC-THOR Operation Manual

Photovoltaic-power-manager for hot water and space heating
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AC•THOR / AC•THOR 9s
Photovoltaic-Power-Manager for hot water and space heating
Operation Manual
Firmware a0020000
Operating modes
AC•THOR
AC•THOR 9s
M1 Hot water
M2 Hot water stratified charging
M3 Hot water 6kW
M4 Hot water + heat pump
M5 Hot water + space heating
M6 Space heating
M7 Hot water + PWM
M8 Frequency mode
AC•THOR
®
/ AC•THOR
®
9s Operating instructions, version a0020000
1

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  • Page 1 AC•THOR / AC•THOR 9s Photovoltaic-Power-Manager for hot water and space heating Operation Manual Firmware a0020000 Operating modes AC•THOR AC•THOR 9s M1 Hot water M2 Hot water stratified charging M3 Hot water 6kW M4 Hot water + heat pump M5 Hot water + space heating M6 Space heating M7 Hot water + PWM M8 Frequency mode...

  • Page 2: Table Of Contents

    Contents 1. Assembly ..........................3 2. Commissioning; putting back into service ................3 3. Controls and displays ......................4 Homescreen .......................... 4 Status symbol ........................5 Data logger ........................... 6 Status information on the display ................... 6 Settings ..........................7 Help .............................

  • Page 3: Assembly

    Connect Web-Interface ......................29 Home (homepage) ......................30 Data logger ......................... 30 Status information ....................... 31 Settings ..........................32 Special setting possibilities in the Web-Interface ..............32 Legionella boost outputs (only with AC•THOR 9s) .............. 32 Control Settings ....................... 33 Measurement Settings ......................

  • Page 4: Controls And Displays

    c. Power meter direct: Connection to my-PV power meter is set up without network directly by using a crossover network cable. d. List of possible compatibility partners: For certain compatible partners the choice between „Auto“ (automatic IP-search of the device) or „Manual“ (manual entry of the IP address of the source) is possible. „Manual“...

  • Page 5: Status Symbol

    Homescreen AC•THOR: Date, Device number time Operating mode Status Presentation according to operating mode Single-Boost Main menu Homescreen AC•THOR 9s: If several temperature With the AC•THOR 9s, sensors are used, the the power display sensor number is consists of three bars. displayed.

  • Page 6: Data Logger

    Data logger Recorded production data, meter values and temperatures can be read off at any time. The respective values can be selected using the "Open" button. These can be presented in the three views of the current year, month or day using the "Calendar" button. TIP: Type directly in the diagram on the individual bars to present the data in their next level of definition and on the button of the data logger again to return to the previous level.

  • Page 7: Settings

    Ctrl IP: shows the current IP address of the signal source. Shown in addition in the line below is the designation of the signal source and the current measured value. A positive value shows drawing from the grid, a negative value, feeding into the grid. Status: Shows the unit's current status.

  • Page 8: Help

    Help After activation, brief information on the current view appears on the display. In the web interface the button leads to the online Operation Manual which corresponds to the firmware version installed. Operating modes You will find wiring diagrams for the respective operating modes and for wiring three-phase heating elements in the assembly instructions supplied with the AC•THOR, as well as in the latest version at any time on www.my-pv.com.

  • Page 9: Specific Settings For Operating Mode M1

    Data my-PV temperature sensor Single-Boost Starts a once-only boost Current power output backup mode (button only appears if boost backup is activated) Homescreen TIP: With the hot water boost backup, limit the use of grid power by avoiding the switch-off at maximum temperature. To do this, set the value higher than the cut out temperature on the immersion heating element thermostat and site the temperature sensor between the immersion heating element and the top edge of the storage tank.

  • Page 10: Temperature Sensors (Only With Ac•Thor 9S)

    There are two time windows available to maintain the minimum temperature on the my-PV temperature sensor. Start and finish can each be defined at full hours. Factory settings suggest switching times of 5 to 11 pm and 5 to 7 am. TIP: Restrict the times when the minimum temperature has to be maintained to mornings and evenings, to increase your own PV consumption through the day! Start hour and stop hour refer to the same calendar day.

  • Page 11: M2: Hot Water Stratified Charging

    Note: One temperature sensor is always enclosed with the AC•THOR, other sensors must be purchased separately. Load output / heater Sensor number Out-3 / Top Out-2 / Center Out-1 / Bottom Excess power control and boost backup are then carried out individually for each heating element; the settings in "...

  • Page 12: Specific Settings For Operating Mode M2

    An arrow shows which Data my-PV heater is currently being temperature sensor supplied. (upper or lower) Single-Boost Current power output Starts a once-only boost backup mode (button only appears if boost backup is activated) Homescreen Specific settings for operating mode M2 Hot water 1 temperatures Adjustable is the maximum permitted temperature to be reached at the my-PV temperature sensor (factory setting = 60 °C).

  • Page 13: M3: Hot Water 6 Kw

    You can select the weekdays on which the minimum temperature has to be maintained. In the factory settings, all weekdays are activated. Legionella program For ensuring drinking water hygiene, a period can be specified by the end of which a set minimum temperature must again be reached after the last time it was reached.

  • Page 14: Specific Settings For Operating Mode M3

    Specific settings for operating mode M3 Hot water 1 temperatures Adjustable is the maximum permitted temperature to be reached at the my-PV temperature sensor (factory setting = 60 °C). This has nothing to do with a bimetal thermostat which may be installed! If the cut out temperature of an immersion heating element with a bimetal thermostat is set too low, the AC•THOR may possibly be unable to reach the desired temperature! If the optional automatic temperature boost backup is shown "On"...

  • Page 15: Explanation

    This mode works in systems where the AC•THOR knows the power in the feed-in point. It does not work if the power output is given by a higher-level energy management system. Explanation In this operating mode the electric immersion heating element of a heat pump is linearly supplied with excess PV power.
  • Page 16 If the cut out temperature of an immersion heating element with a bimetal thermostat is set too low, the AC•THOR may possibly be unable to reach the desired temperature! If the optional automatic temperature boost backup with relay output has been selected, a minimum temperature can then be set (factory setting 50 °C).

  • Page 17: M5: Hot Water + Space Heating

    M5: Hot water + Space heating AC•THOR: Hot water + one heating zone AC•THOR 9s: Hot water + two heating zones Explanation This operating mode is intended for buildings with hot water and space heating by electricity. Electrical heat sources are supplied with PV surplus one after the other linearly with power. The immersion heating element for the hot water supply takes priority.

  • Page 18: Specific Settings For Operating Mode M5

    Specific settings for operating mode M5 Hot water 1 temperatures The maximum temperature permitted to be reached at my-PV temperature sensor 1 can be adjusted (factory setting 60 °C). This has nothing to do with a bimetal thermostat which may be installed! If the cut out temperature of an immersion heating element with a bimetal thermostat is set too low, the AC•THOR may possibly be unable to reach the desired temperature! If the optional automatic temperature boost backup is shown "On"...

  • Page 19: Temperature Sensors

    temperatures which should be maintained in the day and night periods (factory setting 20 °C in each case). SH 1 Switching times (with AC•THOR 9s SH 1 und SH 2) Start and finish of the night period can both be adjusted with hours and minutes. The factory setting suggests the period between 10 pm and 5 am.

  • Page 20: Specific Settings For Operating Mode M6

    Data my-PV temperature sensor Room temperature (sun = daytime operation) Current power output Homescreen On the display a sun or moon symbol shows in which time period the room temperature control is currently operating. Different minimum temperatures can be specified for day and night. Specific settings for operating mode M6 SH 1 temperatures (with AC•THOR 9s SH 1, SH 2 and SH 3) The maximum room temperature permitted to be reached at the my-PV temperature sensors can be...

  • Page 21: Explanation

    Explanation In this operating mode, an electric heating element is supplied linearly with excess PV energy. In addition, the AC•THOR can send out a temperature-dependent PWM signal. This can for instance control the speed of a pump. This function was tested by my-PV with the pump type Wilo Yonos Para PWM1 and PWM2. For PWM2, the setting command xxx.xxx.xxx.xxx.xxx/setup.html?pwmt=2 must be entered in the URL of the webinterface.

  • Page 22: M8: Frequency Mode

    for temperature boost backup and not as an extension to the normal control range! Hot water 1 min switching times This setting can be selected when the temperature boost backup is "On" under "Hot water 1 temperatures", or when the relay output has been selected. There are two time windows available to maintain the minimum temperature on the my-PV temperature sensor.

  • Page 23: Specific Settings For Operating Mode M8

    In boost backup mode, the battery must be expected to discharge! Data my-PV temperature sensor Current grid frequency Single-Boost Starts a once-only boost backup mode Current power output (button only appears if boost backup is activated) Homescreen TIP: Using several AC•THORs, each one may specify a different frequency range. In this way it is also possible to set priorities for several dump loads.
  • Page 24 If as an external heat source a second immersion heating element (maximum 3 kW) is used, it can be suitably connected up for 6 kW operation. This differs from the 6 kW operating mode in that here the second immersion heating element is only used for temperature boost backup and not as an extension to the normal control range! Hot water 1 min switching times This setting can be selected when the temperature boost backup is "On"...

  • Page 25: Temperature Sensors (Only With Ac•Thor 9S)

    TIP: If not all three outputs of a three-phase heating element are used for boosting, control power is still available in case of excess energy! Temperature sensors (only with AC•THOR 9s) Optionally, three temperature sensors can also be used in the operation of three single-phase heating elements.
  • Page 26 Display duration: the number of seconds elapsing until the display is turned off can be set. A value between "10" and "250" seconds can be entered. Display brightness: brightness of the display can be adjusted in ten steps. Logo brightness: brightness of the illuminated AC•THOR logo on the unit can be adjusted in ten steps.

  • Page 27: Web-Interface

    Hysteresis: switch hysteresis can be set for hot water and room heating. This does not cause too high a target temperature! After reaching the target temperature, the value is allowed to fall by the set amount before the heating process is restarted. Hot water maximum temperature (factory setting 3.0 °C) Hot water minimum temperature (factory setting 3.0 °C) Space heating maximum temperature (factory setting 0.5 °C)

  • Page 28: Systems Without Internet Access

    scanner program into a local directory. If there are several my-PV devices in the network, the unit to be configured can be identified by the serial number (for AC•THOR see type plate on the back of the unit). The web interface opens by double clicking on the respective search result. From firmware version a0020000 onwards, the required HTML file is downloaded from the Internet and stored in the same directory as the scanner program.

  • Page 29: Connect Web-Interface

    To be able to access the Web-Interface of AC•THOR in systems without internet access, please download the required HTML file in advance. You will also find a corresponding note on the carton box: Connect Web-Interface If the Web-Interface is started via the scanner program (see chapter “Search for devices in the network “, the connection to the device is established automatically.

  • Page 30: Home (Homepage)

    Home (homepage) The AC•THOR start page in the web browser gives the same information as the home screen on the display. Navigation using the symbols bar is carried out in the same way. Further information in the chapter "Control and display elements". With device state "Off", the load control can be switched off.

  • Page 31: Status Information

    display. The selection of values and time period is possible using the menu bar above the diagram. Further information in the chapter "Control and display elements". TIP: Move the mouse over the bar and the exact values will be shown! Orange bars indicate the proportion of energy that comes from the photovoltaic system, red bars indicate the proportion of optional boost-backup.

  • Page 32: Settings

    Power 3 share grid: (only with AC•THOR 9s) this value shows the share of the power from load 3 from the grid. Load: With AC•THOR 9s, the load status (0 or 1) is displayed at this point on the three outputs. Load nominal power: Shows the nominal power of the load (at 230V).

  • Page 33: Control Settings

    TIP: If, for example, 3 single-phase heating elements are used and only one of them is in a drinking water storage tank, then the Legionella programme should only be used on this heating element! Control Settings In this section the choice of the signal source for the AC•THOR is made. A control type can only be selected if the AC•THOR has the factory preset device number 1.
  • Page 34 The communication works either via port 502 or 1502. Steca Varta Victron With Modbus control, the excess power control can be selected according to one or three phases. TIP: For many of these and other manufacturers there are separate instructions for the required settings.
  • Page 35 With the "Adjustable Modbus TCP" control mode, the AC•THOR receives the power-value in the feed-in point from an inverter or Modbus counter. The required communication registers shall be set according to the manufacturer's description. Device ID must be set to the Modbus ID of the external device. This type of control is currently not approved for hybrid systems with battery storage.

  • Page 36: Measurement Settings

    Measurement Settings As an option, other measurements can be queried in the system in addition to PV excess measurement and visualise them on the my-PV.LIVE data platform. Available variables are Photovoltaic power, Battery power, EV Charging station power and Heat pump power. If you are using the my-PV Power Meter to detect these values, you must enter the ID (serial number) of the device.
  • Page 37  All devices must be connected to the router via network cable.  Only one master can be assigned to a signal source and vice versa.  A maximum of 10 slaves are possible per master.  All slaves in the network must have different device numbers, even if these are assigned to different masters.

  • Page 38: Cloud Mode

    Settings on Master Only for devices with number 1 (= master) the following display appears in the setup: To make the settings for several devices on the master, first choose between Synchron and Stratify. In the case of synchronous charging, the power is evenly distributed to the master and its slaves.
  • Page 39 TIP: Inform yourself in advance on the Cloud Mode simply by watching our video explanation (activate English subtitles): https://youtu.be/tJtAvwM7-7Q If your device has a device key, a connection to the data platform my-PV.LIVE possible. You will find it glued on the enclosed assembly instructions. Activate the cloud mode and save the settings.

  • Page 40: Debug-Mode

    Control with 3.3 - 24 V DC voltage from external source The AC-THOR can also be operated via an external PWM signal with variable power. The corresponding signal input is located at the 8-pin connector to which the temperature sensor is also connected.

  • Page 41: Description Of The Protocols For Http And Modbus Tcp

    As soon as a PWM signal is present, it is displayed in percent on the bottom right of the display above the help button. Observe the polarity of the DC voltage! Without a temperature sensor, the AC•THOR will not switch off. This must then be done by the external signal source or by switching off by thermostat! Control by potential-free contact The AC•THOR can also be operated rigidly with maximum power via an external signal.

  • Page 42: Update With Sd Card

    Start firmware update: if a newer software version is present on the SD card, the update can be started manually. After the update, the unit will be restarted automatically. Start power firmware update: if a newer output unit software version is present on the SD card, the update can be started manually.

  • Page 43: 13. Error Messages On The Display

    13. Error messages on the Display Error messages are only displayed on the home screen of the display. They are not shown in the web interface. Error 101 No phase detected on the middle relay contact Error 102 Temperature sensor 1 required for hot water boost backup Check if the sensor has been activated! Error 103 Temperature sensor 1 required for 6 kW operating mode Check if the sensor has...

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