MYPV AC THOR Manuale utente

AC•THOR®/ AC•THOR®9s Operating instructions, version a0020000 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

AC•THOR®/ AC•THOR®9s Operating instructions, version a0020000 2 
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 ..................................................................................................................................... 8 
4. Operating modes................................................................................................................... 8 
M1: Hot water....................................................................................................................... 8 
Explanation........................................................................................................................ 8 
Specific settings for operating mode M1 .............................................................................. 9 
Temperature sensors (only with AC•THOR 9s) ................................................................... 10 
M2: Hot water stratified charging ......................................................................................... 11 
Explanation...................................................................................................................... 11 
Specific settings for operating mode M2 ............................................................................ 12 
M3: Hot water 6 kW ............................................................................................................ 13 
Explanation...................................................................................................................... 13 
Specific settings for operating mode M3 ............................................................................ 14 
M4: Hot water + Heat pump ................................................................................................ 14 
Explanation...................................................................................................................... 15 
Specific settings for operating mode M4 ............................................................................ 15 
M5: Hot water + Space heating............................................................................................ 17 
Explanation...................................................................................................................... 17 
Specific settings for operating mode M5 ............................................................................ 18 
Temperature sensors ....................................................................................................... 19 
M6: Space heating............................................................................................................... 19 
Explanation...................................................................................................................... 19 
Specific settings for operating mode M6 ............................................................................ 20 
Temperature sensors ....................................................................................................... 20 
M7: Hot water + PWM......................................................................................................... 20 
Explanation...................................................................................................................... 21 
Specific settings for operating mode M7 ............................................................................ 21 
M8: Frequency mode........................................................................................................... 22 
Explanation...................................................................................................................... 22 
Specific settings for operating mode M8 ............................................................................ 23 
Temperature sensors (only with AC•THOR 9s) ................................................................... 25 
5. General settings .................................................................................................................. 25 
6. Web-Interface..................................................................................................................... 27 
Search for devices in the network......................................................................................... 27 
Systems without Internet access .......................................................................................... 28 

AC•THOR®/ AC•THOR®9s Operating instructions, version a0020000 3 
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...................................................................................................... 36 
E-Car-Function................................................................................................................. 36 
Multi units ....................................................................................................................... 36 
Cloud Mode ..................................................................................................................... 38 
Debug-Mode.................................................................................................................... 40 
Help ................................................................................................................................... 40 
7. Potential-free input for external control ................................................................................ 40 
8. Description of the protocols for http and Modbus TCP ........................................................... 41 
9. Firmware update................................................................................................................. 41 
Update of server ................................................................................................................. 41 
Manual Update ................................................................................................................ 41 
Update with SD card............................................................................................................ 42 
10. Status codes ....................................................................................................................... 42 
11. Temperature sensors: Assignment and function (only with AC•THOR 9s)................................ 42 
12. Fault temperature sensors ................................................................................................... 42 
13. Error messages on the Display ............................................................................................. 43 
14. Fault signals by the AC•THOR Logo...................................................................................... 43 
 
1. Assembly 
Before placing into operation it is essential to read the assembly instructions provided with the 
device. 
2. Commissioning; putting back into service 
This takes just a few moves and is performed the first time the AC•THOR is operated or when it has 
been reset to factory settings. 
1. Select language 
Use the cursor keys on the left and right to view further possibilities. 
 
2. Select operating mode 
See chapter headed "Operating modes". 
 
3. Select control of the signal source for the AC•THOR 
a. Power meter automatic: Connection to my-PV power meter in the network is set up 
automatically. 
NOTE: setting up the connection may take up to a minute. 
b. Power meter manual: Connection to my-PV power meter in the network is set up by 
entering the IP address manually. 

AC•THOR®/ AC•THOR®9s Operating instructions, version a0020000 4

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“ is for instance necessary when there are several compatible sources in the

network and a special one of them should be chosen as the control system.

TIP: On the Web-Interface the selection of compatible

signal sources is much larger than on the display!

e. Further protocols: http, Modbus TCP, Adjustable Modbus TCP

Adjustable Modbus TCP has to be configured in the Web-Interface.

(see chapter „Special setting possibilities in the web interface”)

4. Temperature sensor assignment and activation

A number is assigned to the sensor in the order in which it is selected. The selection can

be deselected by tapping on the key once more.

To assign a sensor to the respective entry in the list, the serial numbers can be identified

on a label attached to the sensor wire.

TIP: As the measuring value of the sensor is already shown in the selection

list, an assignment can alternatively also be made by simply altering the

temperature on the sensor.

5. Save the settings

3. Controls and displays

Homescreen

The "Home" button always returns you to the home screen. The upper bar shows the current date,

time, the unit number und the operating mode (mode M1 –Mx). On the right, symbols show the

unit's current status.

The contents of the home screen vary according to the operating mode and shows how much power

the AC•THOR is currently feeding into the load. Depending on how many, if any, temperature

sensors are defined, the measured values are also shown.

AC•THOR®/ AC•THOR®9s Operating instructions, version a0020000 5

Homescreen AC•THOR:

Presentation

according to operating

mode

Date, Device number

time Operating mode Status

Main menu

Single-Boost

Homescreen AC•THOR 9s:

With the AC•THOR 9s,

the power display

consists of three bars.

Load output Out-3

Load output Out-2

Load output Out-1

If several temperature

sensors are used, the

sensor number is

displayed.

The button "Single boost" only appears in hot water operating modes if the function for

ensuring a minimum temperature is activated. Actuating the button starts a once-only

boost backup mode. This can also be deactivated while it is in operation.

If the boost backup is actuated automatically based on the day of the week, time of day or

temperature, it cannot be deactivated by using the button.

Status symbol

Lights up = set temperature reached, Flashes = stand-by, waits for excess

Lights up = heats with PV excess. Flashes = boost backup mode

Lights up = no control signal

Lights up = physical connection to the RJ45 network connection is intact

Lights up = no intact physical connection to the RJ45 network connection

Block active

AC•THOR®/ AC•THOR®9s Operating instructions, version a0020000 6

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.

The following data can be displayed:

Total power: Shows the total power figures for all the connected loads. The yellow bars indicate the

PV excess power used, the green bars the proportion of grid energy when the optional temperature

boost backup is active.

Meter: indicates the value of the total power drawn from the grid (red) including household loads

and grid feed-in (green) at the metering point.

Power 1: shows the power data for load 1.

Power 2: shows the power data for load 2.

Temperature 1-4: shows the data of the temperature probe.

Status information on the display

The data of all variables relevant to the operation are shown in a list.

Output: shows the current output of the AC•THOR power unit.

Meter: shows the current data for the meter at the measuring point. A positive value shows drawing

from the grid, a negative value, feeding into the grid.

PV: If a corresponding measuring point has been set in the Web-Interface under Setup, the value of

the PV power is available here. See Measurement Settings.

Load: shows the nominal power of the load (at 230 V) which is currently being supplied by the

AC•THOR output unit. This value can be determined from an output of 500 W.

With AC•THOR 9s, the load status (0 or 1) at the three outputs is displayed at this point.

Temperature 1: Current data probe 1

Temperature 2: Current data probe 2

Temperature 3: Current data probe 3

Temperature 4: Current data probe 4

IP: shows the current IP address of the AC•THOR.

AC•THOR®/ AC•THOR®9s Operating instructions, version a0020000 7

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. See chapter "Status codes".

For AC•THOR 9s the number consists of two parts. On the left the status code of power unit

AC•THOR 9s, on the right the status code of power unit AC•THOR.

Grid voltage: shows the current input voltage at the AC•THOR (only with AC•THOR)

Grid power: shows the current input power at the am AC•THOR (only with AC•THOR)

Output voltage: shows the current output voltage of the AC•THOR (only with AC•THOR)

Power 1: Power at output Out-1 (only with AC•THOR 9s)

Power 2: Power at output Out-2 (only with AC•THOR 9s)

Power 3: Power at output Out-3 (only with AC•THOR 9s)

Frequency: shows the current grid frequency. This information is of particular interest in operating

mode M8.

Temperature output unit: shows the current temperature of the AC•THOR power electronics.

Fan: shows the current speed setting of the internal fan.

Serial number: shows the unit serial number.

MAC address: shows the MAC address of the unit.

Version: shows the current firmware version of the unit.

Version power stage: shows the current firmware version of the AC•THOR output unit.

For AC•THOR 9s the firmware version of the PS consists of two parts.

pXXX: Power stage AC•THOR

sXXX: Power stage AC•THOR 9s

Device number: shows the unit number set. This is also visible on the home screen.

Operating mode: shows the operating mode set (M1 –Mx). This is also visible on the home screen.

Latest firmware: shows the latest firmware version, or "current" is displayed.

Update status: Ok, loading (number of files), or waiting for installation

Output unit update status: Ok, loading, or waiting for installation

Ethernet (E) Firmware: Shows the status of the firmware, last version, update progress.

Power stage (P) Firmware: Shows the status of the firmware, last version, update progress.

Power stage 9s (S) Firmware: Shows the status of the firmware, last version, update progress.

Relay status: shows the current status of the switch output (0 or 1).

For AC•THOR 9s this number has four digits. The first digit shows the status of the switch output (0

or 1), the second digit whether Out-3 is switched (0 or 1), the third digit whether Out-2 is switched

(0 or 1) and the fourth digit shows the output that is currently supplied by the power stage (1, 2 or

3).

Settings

See chapter "General settings" for general unit settings, also chapter "Operating modes" for settings

specific to the respective operating mode.

AC•THOR®/ AC•THOR®9s Operating instructions, version a0020000 8

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.

4. 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.

M1: Hot water

AC•THOR: Hot water with a single-phase immersion heater

AC•THOR 9s: Hot water with a three-phase immersion heater or with 3 single-phase immersion

heaters

TIP for AC•THOR:

A single-phase heating element does not necessarily have to have 3kW power. Of

course, smaller outputs such as 2kW are also possible!

TIP for AC•THOR 9s:

A three-phase heating element does not necessarily have to have 9kW power.

Smaller outputs such as 4.5kW, 6kW or 7.5kW are also possible!

Likewise, three single-phase elements can have a power of less than 3kW!

Explanation

In this operating mode, an electric heating element is supplied linearly with excess PV energy. It can

be fitted with a bimetal thermostat to switch off when the temperature for which it is set is reached.

Otherwise the my-PV temperature sensor is to be used.

With AC•THOR 9s in operation with three single-phase heating elements, bimetal thermostats

must be present on all three immersion heaters!

Optionally, the AC•THOR can also take over guaranteeing the hot water temperature. For this, the

my-PV temperature sensor is to be used.

The my-PV temperature sensor is in all cases to be installed in the storage tank above the

heating element to provide a reliable reading!

AC•THOR®/ AC•THOR®9s Operating instructions, version a0020000 9

Data my-PV

temperature sensor

Current power output

Homescreen

Single-Boost

Starts a once-only boost

backup mode

(button only appears if boost

backup is activated)

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. In this way, in boost backup mode only the volume above the sensor

will be heated to the minimum temperature, while when there is excess PV, the

entire contents above the immersion heating element will be heated.

Specific settings for operating mode M1

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" in the window on the right

(factory setting "Off") or the relay output has been selected, a minimum temperature can then be

set (factory setting 50 °C). It cannot be set higher than the maximum temperature.

Automatic temperature boost backup "On":

The AC•THOR can ensure a minimum temperature at the my-PV temperature sensor through the

immersion heating element connected. This is supplied with maximum power.

Relay output:

Alternatively, the minimum temperature can be maintained by enabling an external heat source.

Enablement is by means of a potential-free contact. For details of wiring the potential-free contacts,

please refer to the assembly instructions in the chapter "Connections".

TIP for AC•THOR (not AC•THOR 9s):

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" under "Hot water 1

temperatures", or when the relay output has been selected.

AC•THOR®/ AC•THOR®9s Operating instructions, version a0020000 10

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. If a time window is defined over

midnight, hot water backup will not start!

If start-hour and stop-hour are identical, boost-backup starts one-time until the set-point

temperature is reached.

If the adjusted start-hour is after the stop-hour, hot water backup will not start!

Hot water 1 min weekdays

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.

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. The number of days in this

period can be set between 1 and 14. A time at which the legionella program is to start can also be

specified. Factory settings are number of days 7, starting time 8 pm, temperature is 60 °C, the

legionella program is "Off".

The immersion heating element is supplied with maximum power.

Load priority (only with AC•THOR 9s)

Defines the sequence in which the three load outputs are controlled.

Out 1-2-3: Standard, for a three-phase immersion heater.

Out 3-2-1: For stratified charging with three single-phase immersion heater.

For Out 3-2-1, it is essential to observe the order of the load outputs according to the wiring

diagram!

Boost output (only with AC•THOR 9s)

If boost backup is activated for AC•THOR 9s, it is possible to specify which load outputs are to be

used for this purpose. All three outputs are activated at the factory.

TIP: If, for example, 3 single-phase heating elements are used, it may only be

necessary to use the boost function on the top heating element. This keeps storage

capacities free for excess energy, which can significantly improve the degree of self-

sufficiency!

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. The assignment must be made vice versa to the load outputs.

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