Grant Solar GS222020X - Return Flow Increase

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6.6.5. - Return flow increase
This function is used to raise the temperature of e.g. the return ow by the storage.
Settings range: On, Off
6.6.5.1. - RF Tmax
Maximum temperature at the return ow sensor. If this temperature is exceeded, the relay is
switched off.
Settings range: 0-80°C / Default setting: 70°C
6.6.5.2. - ∆T return flow
Switch-on temperature difference:
When this difference is exceeded between return ow sensor and storage sensor, the relay is
switched on.
Settings range: 5-20 K / Default setting: 8 K
Switch-off temperature difference:
When this difference is exceeded between return ow sensor and storage sensor, the relay is
switched off.
Settings range: 2-19 K (limited by ∆T Storage RF On) / Default setting: 4 K
6.6.5.3. - Return flow (sensor)
Determines the sensor for return ow increase.
Settings range: S1-S8, VFS1-2, active Storage / Default setting: none
6.6.5.4. - Storage (sensor)
Determines the storage sensor
Settings range: S1-S8, VFS1-2, active Storage / Default setting: none
Special functions
Relay functions