What is the purpose of the condensate neutralizer in a Navien condensing unit and when should it be serviced?
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A
It removes chlorine from inlet water; replace every 5 years
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B
It raises the pH of acidic condensate before drain discharge; replace media when exhausted or annually
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C
It prevents backflow of drain gases; clean monthly
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D
It filters particulates from combustion air; replace every 2 years