210.100-IOM (JUL 2018)
Page 21
ACUAIR
®
HYGIENIC AIR UNITS
INSTALLATION
INSULATION OF THE BASE RECONNECT SEAM
OF AN ACUAIR FOOD GRADE OR SANITARY
SERIES UNIT
When two AcuAir unit sections are drawn together the base
channels of the two sections form an uninsulated cavity that
under certain conditions could produce condensation. AcuAir
provides a ship loose foam insulation kit to fill this cavity as
part of the reconnect procedure.
The insulation may be injected either from the top of the
cavity prior to installing the reconnect split cover strip, or
from underneath the unit provided the reconnect joint is not
positioned directly over a support structure cross member.
BASE CHANNEL
SPLIT COVER
BASE SKIN
CAULK EDGE OF COVER
AFTER ANCHORING
CAULK
BASE
CHANNEL
SPLIT COVER
CAULK
BASE SKIN
CL
SPLIT
.25" DIA CONTINUOUS
BEAD OF CAULK
TYP JOINT OF TWO SECTIONS WITH FLAT SURFACES
Inject Foam Prior to
Installing Cover
CAULK
BASE SKIN
BASE
CHANNEL
INTERNAL WALL
FINISH BEAD
OF CAULK
CL
SPLIT
SIDE VIEW WHEN INTERNAL WALL IS AT A SPLIT
Inject Foam Prior to
Installing Cover
SPLIT COVER
Follow the instructions provided by the foam manufacturer
for preparing the two part foam mixture and the injection kit.
Take special note of the 30 second inactivity limit after which
the injection nozzle may become permanently clogged.
Foam should be injected into the cavity at a rate of 3-4 brd-
ft per linear foot of seam. This will mean a 15 brd-ft can of
expanding foam will fill between 4-5 linear feet of AcuAir
reconnect seam.
When filling the reconnect seam from the top (inside the
AcuAir unit), it may be advisable to cover the bottom of the
opening with duct tape to prevent the foam from dropping
out before it has a chance to expand and attach itself to the
cavity walls.
Figure 19 – Insulation of the
Base Reconnect Seam
NOTICE
Inject the foam into this open seam after the sections
are joined and before the seam cover is installed.
NOTICE
If foam dispensing has stopped for more than 30 seconds,
replace the nozzle with the extra provided.
Summary of Contents for AcuAir
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