Duct Collar Installation Instructions For Xb, Xk And Xx Series Hoods - Accurex XB Installation, Operation And Maintenance Manual

Installing Duct Collars
1. The exhaust duct
connection needs to
be located within 48 in.
(11.9 cm) from the
center of the hood
length to the center of
the duct connection.
(see Fig. 4, back view
Fig. 5)
. The exhaust duct
connection is to be
a continuous liquid-
tight weld. Weld with
a non-ferrous filler
wire, such as silicon
bronze or stainless
steel filler wire. Protect
all stainless steel areas
from weld splatter.
3. The supply duct
connection is tack-
welded at 1 to  in.
(.54 to 5.08 cm)
intervals, or sheet metal
screws at 3 to 6 in.
(7.6 cm to 15.4 cm)
spacing to the hood.
(Fig. 6)
4. The deflector is
centered under the
supply duct collar.
(Fig. 8)
5. For hoods that are
insulated, the edges of
the insulation need to
be taped after the hole
is cut, (the insulation
tape is to be provided
by others).
6. On combination hoods,
make sure the fire
damper is located over
the internal supply
chamber. (Fig. 9)
16
8.00
8.00
Top View of the Hood
EXHAUST DUCT
CONNECTION 8.00
8.00
1.00
1.00
12.00
EXHAUST DUCT CONNECTION IS TO BE
12.00
A CONTINUOUS LIQUID TIGHT WELD TO HOOD.
Back View of the Hood
SUPPLY DUCT
CONNECTION
SUPPLY DUCT CONNECTION TO BE TACK WELDED WITH
1" TO 2" TACKS OR SHEET METAL SCREWS AT 3" TO
6" SPACING TO HOOD.
DEFLECTOR TO BE PLACED CENTERED
UNDER THE SUPPLY DUCT COLLAR
HOOD SECTION VIEW
Hanger Bracket
Hanger Bracket
Exhaust Plenum
Exhaust Plenum
Duct Cut Out Area
Duct Cut Out Area
Supply Plenum
Supply Plenum
Front of Hood
Front of Hood
Hood Length
Hood Length
Hood Top
Exhaust Plenum
Exhaust Plenum
Duct Cut Out Area
Duct Cut Out Area
INTERNAL
SU PPL Y
C HAMBE R
Fig. 6 EXHA UST
C APT U RE
SU PPLY L OC ATI O N DETAIL F OR
A IR CU RTAIN AND CO MBINATI ON
Fig. 8
3.00
3.00
14.00
14.00
Hood Width
Hood Width
16.00
16.00
3.00
3.00
8.00
8.00
Fig. 4
8.00
8.00
Fig 5
SU PPL Y
FIRE DAMPER
H OO D
IN SU LATE D
SU PPLY PLEN UM
Fig. 7
Note: UL listed hood
assembly to be used
only with Accurex, LLC
labeled subassembly
for exhaust hood
without exhaust
damper part
Number DC.