A Google user
Ok, but as I read "Combustion Appliance Zone Depressurization Set-Up", it says (when Xfans, etc, on) to open CAZ door if CAZ negative (wrt outside), close door if positive (wrt o)- this is opposite of accepted practice. Did I wrong read?
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A Google user
I used this extensively in studying for the building analyst exam, and it provided thorough coverage of the material I needed to know.
1 person found this review helpful