210.100-IOM (JUL 2018)
Page 28
ACUAIR
®
HYGIENIC AIR UNITS
INSTALLATION
WEATHER HOOD CONNECTION DIRECT TO
THE ACUAIR FRESH AIR OPENING
(See Figures 35 and 36)
1. Apply polyurethane caulking to the flange of the hood.
2. Align the hood over the opening. Check for adequate clear-
ance to doors and other openings on the air-handling unit.
3. Attach the hood to the unit using sheet metal screws
through the unit casing. On openings requiring multiple
hoods, repeat this procedure for each of the hoods.
4. Carefully, remove excess polyurethane caulking from
around the flange of the hood.
NOTICE
Any penetration of cabinet skin will cause water and air
leakage. Thoroughly seal any screw, piping or electrical
holes with appropriate sealant. Self tapping screws are
not weather tight.
Figure 35 – Connection of Weather Hood(s) to Unit
Figure 36 – Weather Hood Installation
POLYURETHANE
CAULKING
SHEET METAL
SCREWS
HOODS
FIELD PENETRATIONS FOR PIPING AND
ELECTRICAL CONNECTIONS
WARNING
Use only metal cutting hole saws and/or blades to make
penetrations thru panels. Never use a cutting torch due
to foam insulation.
NOTICE
For small sizes such as 1/2” iron pipe, 1/2” conduit or
5/8” O.D. copper and smaller; it is acceptable to use caulk
instead of a grommet.
NOTICE
Electrical conduits must be sealed internally to prevent
airflow and moisture condensation.
Tools Required
• Drill motor.
• Pilot starter bit.
• Hole saws-approximately 2½”, 3¼” & 4½” diameter for
holes.
• Power cords as required.
Summary of Contents for AcuAir
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