How to turn off cold water in Haier sense7?

Generally, the function of zero-cold water heater can be turned off once, and there will be no problem, because the service life of zero-cold water heater has been tested. If the function of the zero-cooling water heater is not turned off, the zero-cooling water heater will keep running and keep the water temperature constant, but it will affect the service life and consume a lot of gas.

There is an angle valve on the wall. Turn clockwise and close. Remember to drain the water in the water heater after turning it off, otherwise it will freeze if it is too cold.