Thank you for choosing the double-tank step-by-step commercial electric water heater. This series of water heaters are new drinking water equipment developed and manufactured by our company based on the step-by-step commercial electric water heater. They have more complete functions and are more convenient to use. This manual is only applicable to the double-tank step-by-step commercial electric water heater produced by our company. This product is suitable for commercial electric water heaters and liquid heaters used for boiling or heating beverage liquids, not for household use.

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