If a humidifier is used in a central-heating or air conditioning system, it is generally operated only when the ____.
A) heat exchanger is in operation
B) gas shutoff valve is open
C) blower is in operation
D) filter is clean
Correct Answer:
Verified
Q1: The humidistat is a device that can
Q2: The two most common materials used to
Q3: Humidity is actually a minor issue in
Q4: Humidity sensing materials change color with a
Q6: The control of humidity is important in
Q7: The humidistat _ if the humidity should
Q8: A circuit may use a(n) _ to
Q9: Some circuit controls use a combination of
Q10: To ensure that a humidifier is operated
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