AK HVAC Practice Questions - Alaska Mechanical Administrator HVAC License Exam

What is the recommended boiler water pH range for a cast iron hydronic boiler?

5.0-6.0 (acidic) 7.0-8.5 (slightly alkaline) 10.0-12.0 (highly alkaline) 4.0-5.0 (strongly acidic)

7.0-8.5 (slightly alkaline)

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