20
Settings
Reference sensors are usually S1 and S2.
If S3 is connected, the switch off ΔT-Off is between S2 and S3.
5.3. ∆T R1
Switch-on/switch-off temperature difference for relay R1
If this temperature difference is reached, the ball value at R2 and the pump at R1 are
switched on. When the temperature drops to ΔT-Off the pump/valve are switched off.
Setting range:
ΔT-On 4 °C - 20 °C/Default 10 °C
ΔT-Off 2 °C - 9 °C/Default: 3 °C
If the set temperature difference is too small, this may result in ineffec-
tive operation, depending on the system and sensor positions.
Caution
Caution
5.6. Follow up/Switch-off delay
5.7. Delay/Switch-on delay
After the switch-off conditions for the solar pump are met, the pump keeps running for
the time set here. This prevents the unit from being turned off for short spells of shade
or cloudiness.
Setting range: 0 - 30 min/Default: 1 min
When all switch-on conditions are met to activate the solar pump, the pump is not
switched on for the time set here. This prevents the unit from being turned on for short
sunny spells.
Setting range: 0 - 30 min/Default: 1 min
5.8. Solar times
During the periods set here the solar system is enabled.
Setting range: off, daily 0:00 - 23:59/Default: daily 0:00 - 23:59
5.4. Tset S2
5.5. Hysteresis
Target temperature for sensor 2. Below this temperature the heating is switched on until
Tsoll+Hysteresis is reached.
Setting range:
0 °C - 40 °C
/Default: 20 °C
Hysteresis for heating.
Setting range:
0 °C - 10 °C
/Default: 5 °C
5.9. Heating times
During the periods set here the heating system is enabled.
Setting range: off, daily 0:00 - 23:59/Default: daily 0:00 - 23:59
