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10
2.6.1 D
UCTS
C
ONNECTION
VD0489
C
ORRECT
INSTALLATION
VD0490
I
NCORRECT
INSTALLATION
IMPORTANT: Make sure to connect ducting as illustrated below to get airfl ows reading accuracy. Correct
installation will also allow proper drainage of water that may accumulate in ducting.
Insulated ducts must have the same diameter as the ports to ensure proper drainage of water that may
accumulate in ducts.
CAUTION
Ducting must not be too crushed. Otherwise, airfl ows reading accuracy will be affected.
CAUTION
R = 3" minimum
NOTE: Route ducts as straight as possible, minimize the number of elbows and design and install ducts in accordance with
HRAI best practices.
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