Grant Solar GS222020X - Solar Bypass

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Relay functions
The enumeration does not correspond to the controllers menu enumeration.
6.6.1. - Solar bypass
Use the relay to switch a bypass valve or a bypass pump
This can direct the ow pass the storage, when the ow temperature at the bypass sensor is lower
than the storage that has to be charged.
Settings range: On; Off
6.6.1.1. - Variant
6.6.1.2. - Bypass (sensor)
This menu determines wether a pump or valve is used to direct the ow through the bypass.
Settings range: Pump, Valve / Default setting: Valve
The ow sensor for the bypass function is selected in this menu. Do not install in the return ow.
Settings range: S1-S8, VFS1, VFS2 / Default setting: none
Special functions
Examples:
System 1 +
+
System 14 + System 11 +
Solar with storage
with additional functions Solar
Bypass
and Return Flow Increasee
Solar with heat exchanger
with additional function Solid Fuel
Boiler
Solar with 2 zone storage and
switching valve
with additional function Thermostat
6.6. - Relay functions
The here explained additional functions can be assigned to unused relays. Every additional function can
only be used once. Pay special attention to the technical data of the relays
(„B.1. - Specications“ on page 6).