A.O. Smith SGS - 100, Installation, User And Service Manual

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Instruction manual SGS 61
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5. Switch off the solar heating system.
6. Connect a hose to the lowest drain point in the solar heating system.
7. Insert the hose into the glycol jerry can.
8. Open the valve of the lowest drain point.
9. Open the air bleed point (26) of the solar heating system.
10. Close the drain point when the jerry can is full.
11. Insert the hose in a new jerry can.
12. Repeat steps 6 and 7 until no further glycol comes out of the system.
13. Close the air bleed point and the valve of the drain point.
14. Remove the hose.
Note
Dispose of the drained glycol in an environment-friendly manner, and
according to local regulations.