Draining - A.O. Smith TWI 35-200 Installation, User And Service Manual

8.10.2
0313279_TWISTER II_UKUK_V1.1, 18-02-2019

Draining

Refer to the installation diagram when you drain the water heater:
1. Close the manual gas valve (10).
2. If applicable, close the service stop valve (11) in the hot water pipe.
3. Close the stop valve (10).
4. Open the drain valve (9).
5. Aerate the entire installation of air until the water heater is completely drained.
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