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Settings
5.7 ∆T R2
5.8 Tset S3
5.9 Hysteresis
Switch-on/Switch-off temperature difference for relay R2
If this temperature difference between the reference sensors is exceeded and the
other conditions are also met, then the controller switches the pump and/or the valve
on.
When the temperature drops to ΔT Off, then R2 is switched off.
Settings range: ΔT from 4°C to 20°C / ΔTOff from 2°C to 19°C
Settings range: ΔT 10°C / ΔT off 3°C.
Thermostat function at sensor 3
If the temperature at sensor 3 exceeds this value (+hysteresis) the corresponding relay
is switched off. If the temperature at sensor 3 falls below this value and the other con-
ditions are also met, the corresponding relay is switched on.
Setting range: from 0°C to 99°C/default setting: 50°C
Hysteresis for thermostat function at sensor 3
By setting the hysteresis value the heating of the storage tank can be adjusted.If the
temperature of the Tsetpoint at sensor 3 is exceeded by the set hysteresis, additional
heating at relais 2 is deactivated. If the Energy saving mode is active (see 5.16) the
system heats up until TminS3+hysteresis temperature is reached.
Setting range: from 0°C to 20°C/default setting: 10°C
Setting the temperature difference too small may lead to ineffective operation
of the system and to frequent switching of the pump, depending on the system
and sensor positions.
In Energy saving mode other settings may apply, e.g. TecoS3, see 5.16
Temperature values which are set too high can lead to scalding or dam-
age to the system. Scalding protection must be provided by the cus-
tomer!
Caution
Caution
Danger
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