What items should be checked when converting an indoor air handler from upflow configuration to horizontal configuration?

A) The transformer and fan relay should be changed
B) Drain pan, correct drain opening, and service access
C) The blower must be removed and turned around
D) The cabinet feet must be relocated from the bottom to the side


B

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____________________ are vitreous china fixtures designed to receive human urine and convey it to the waste piping system.

Fill in the blank(s) with the appropriate word(s).

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A pleated filter ____.

A. does not clog up as quickly as a standard filter B. has much more surface area that non-pleated filters C. costs less than a standard filter D. Both a and b.

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What security posture permits everything that is not specifically denied?

a. Default deny. b. Default allow. c. Close. d. Open.

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Preload causes a slight drag as a shaft is rotated and can cause bearing damage.

a. true b. false

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