19
Safety Cautions
■ Prevention of freezing water
Drain the residual water inside the heater to prevent frozing water after every use when
the environment temperature is near or under 0ºC, do as instructed (Fig. 14)
● Close down the gas valve ①
● Turn the water temperature knob ②to “low” position, or turn the water volume button knob
to “large”position (level).
● Close down the cold water valve sans③, if a valve is installed on the hot water circuit, open it.
● If there is a control valve④ at the hot water outlet, please open it.
● Turn the drain valve⑤ and take off, replace it after the residual water is completely
discharged.
Fig.14
drain value
water
volume
knob
water
value
gas
value
water
inlet
gas
inlet
control
hot
value
water
outlet
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