Trane TRG-TRC013-EN NLt -”trp” wp”s“t wxvwt PO up”4, DDList two possible causes of system effect

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PO up”4

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SWhat method of fan capacity control “preswirls” the air in the direction of fan rotation before it enters the fan wheel?

DC How is the capacity of a variable-pitch vaneaxial (VPVA) fan controlled?

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DDList two possible causes of system effect.

DE What document establishes laboratory testing methods for air-moving devices?

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