AC•THOR
®
/ AC•THOR
®
9s Operating instructions, version a0020000 14
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" in the window on the right
(factory setting "Off"), 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":
With both immersion heaters, the AC•THOR can assure a minimum temperature at the my-PV
temperature sensor. These are supplied with maximum power.
Hot water 1 min switching times
This setting can be selected when the temperature boost backup is "On" under Hot water 1
temperatures".
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".
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 heaters are supplied with maximum power.
M4: Hot water + Heat pump
AC•THOR: Hot water with a single-phase immersion heater
AC•THOR 9s: Hot water with a three-phase immersion heater
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