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Original instructions
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PPENDIX
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VAV F
LOOR-
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OUNTED
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UIDELINES
When integrating a Labconco floor-mounted fume hood into a variable air volume
(VAV) mechanical system, properly assessing the area opening of the fume hood
is critical to ensure correct controller calibration for maintaining face velocity
across all sash positions. Depending on your brand of VAV controller, you may
be prompted to enter different information to arrive at this correct area. To
simplify this requirement, Labconco offers the following step-by-step procedure
to ensure you have the correct information.
1.
Locate the serial tag for your floor-mounted fume hood; usually on the
lower right of the sash glass.
2.
Move to the section of the document below specific to your sash type and
model number.
Model numbers beginning 112
Move to the section below specific to your sash type
Vertical rising sashes
(two sashes that move up and down)
1.
Determine the free opening area
a.
Width
i.
Measure the interior width of the fume
hood just behind the plane of the sash
glass and enter that here:
Width Opening ___________ inches = A
b.
Height
i.
Measure the vertical distance between the top of the closed
lower sash and the bottom of the sash handle on the upper
sash, and enter that here:
Vertical Opening _____________ inches = B
