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REGULUS SRS6 EP Controller - www.regulus.eu
Settings
menu 4
4.4 - Tmax SB WT
menu 4.x
= Switch-off temperature at heat exchanger sensor
If this value is exceeded at the applicable sensor and the other conditions in the table are also met, the contro-
ller switches the associated pump and/or valve off. If the temperature falls below the set value again, then the
controller switches the pump and/or valve on again.
Settings range: 0-50 °C / Default setting: 28 °C
Temperature values which are set high will allow higher solar heat accumulation but it shall be
checked that all system components are resistant to high temperatures and scalding protection is
provided.
4.5 -
Δ
T Solar S (X)
menu 4.x
= Switch-on/switch-off temperature difference for sensor X
If this temperature difference between the reference sensors is exceeded and the other conditions are also
met, then the controller switches the applicable relay on. When the temperature drops by
Δ
T Off, then the
relay is switched off again.
Settings range:
Δ
T: 4 - 50 °C /
Δ
T off: 2 - 49°C / Default setting: depends on the hydraulic variant
Setting the temperature difference too small may lead to a situation when the heat source will not
be able to heat up the solar consumers to the value when the pump is switched off (
Δ
T of source
–
Δ
T off). Then the pump will run continuously. Setting the temperature difference too big may lead
to switching the circulation pump on and off permanently. Please refer to special rules described in
Chapter 6.3 for switching pumps with controlled speed.
4.6 - Storage tank charging priority S (X)
menu 4.x
= charging priority in systems with 2 storage
tanks
Set which storage tank (tank sensor) will have a higher priority. This one will then be preferred and will be
charged as the priority one.
Settings range: 1 (highest priority) 3 (lowest priority)
4.7 - T priority - Temperature threshold for absolute priority
menu 4.x
= min. temperature thre-
shold for absolute priority
Charging of the lower-priority storage tank take place only after this set temperature setpoint at the storage
tank sensor of the higher-priority storage tank is exceeded.
Settings range: 0-90 °C. Default setting: 40 °C
4.8 - Charging interruption
menu 4.x
= interruption of charging into the lower priority storage tank
The charging of the lower-priority storage tank is interrupted (solar pump stops) after the settable time in order
to check whether the collector has reached a temperature increase (see 4.9 Increase) that allows charging
in the higher-priority storage tank. If not, the lower-priority storage tank continues to be charged until the next
interruption.
Settings range: 1-90 min/ / Default setting: 20 min
Caution
Danger
