AC•THOR
®
/ AC•THOR
®
9s Operating instructions, version a0020806
12
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!
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.
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).
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".
