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Can cause a packaged HVAC unit to run high head pressure? : The condenser coil is dirty. Condenser coil fins are often damaged by: : Hail storms. Frequent pressure washing. Salt spray. Insufficient rinsing after cleaning coils with strong acids and bases. Water cooled air conditioning systems: : Use building furnished water at a temperature of approximately 80°F to transfer heat from water
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hvac practice test online questions 100 verifi
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