Bryant 574D - Manual (Page 5)

5
Gask et around
outer edge
Insulated
deck pan
Gask et around
duct
S/A R/A
HVAC unit
base
*Gask eting
outer flange
Flashing field
supplied
Roofing material
field supplied
Cant str ip
field supplied
*Provided with roof curb
Roof
Ductwork
field supplied
Insulation (field
supplied)
Roof curb*
Wood nailer*
Gask eting
inner flange*
Scre w
(NO TE A)
Roof Curb for Small Cabinet
Note A: When unit mounting scre w is used,
retainer bra cke t must also be used.
HVAC unit
base
*Gask eting
outer flange
Flashing field
supplied
Roofing material
field supplied
Cant str ip
field supplied
*Provided with roof curb
Roof
Ductwork
field supplied
Insulation (field
supplied)
Roof curb*
Wood nailer*
Gask eting
inner flange*
Scre w
(NOTE A)
Roof Curb for Large Cabinet
Note A: When unit mounting scre w is used,
retainer bra cket must also be used.
A
B Typ.
Supply opening
(B x C)
Long
Support
D
F
Return opening
(B X C)
Insulated
deck pan
Short
Support
C Typ.
G
E
F
G
D E
A05308
UNIT SIZE
ODS CATALOG
NUMBER
A
IN. (MM)
B
IN. (MM)
C
IN. (MM)
D
IN. (MM)
E
IN. (MM)
F
IN. (MM)
G
IN. (MM)
574D018--036
CPRFCURB006A00 8 (203) 11 (279) 16--1/2 (419) 28--3/4 (730) 30--3/8 (771) 44--5/16 (1126) 45--15/16 (1167)
CPRFCURB007A00 14 (356) 11 (279) 16--1/2 (419) 28--3/4 (730) 30--3/8 (771) 44--5/16 (1126) 45--15/16 (1167)
574D042--060
CPRFCURB008A00 8 (203) 16--3/16 (411) 17--3/8 (441) 40--1/4 (1022) 41--15/16 (1065) 44--7/16 (1129) 46--1/16 (1169)
CPRFCURB009A00 14 (356) 16--3/16 (411) 17--3/8 (441) 40--1/4 (1022) 41--15/16 (1065) 44--7/16 (1129) 46--1/16 (1169)
NOTES:
1. Roof curb must be set up for unit being installed.
2. Seal strip must be applied, as required, to unit being installed.
3. Roof curb is made of 16--gauge steel.
4. Attach ductwork to curb (flanges of duct rest on curb).
5. Insulated panels: 1--in. thick fiberglass 1 lb. density.
6. When unit mounting screw is used (see Note A), a retainer bracket must be used as well. This bracket must also be used when required by code for hurricane or seismic
conditions. This bracket is available through Micrometl.
Fig. 5 -- Roof Curb Dimensions
Step 4 — Provide Clearances
The required minimum operating and service clearances are shown
in Fig. 3 and 4. Adequate combustion, ventilation and condenser
air must be provided in accordance with section 5.3, Air for
Combustion and Ventilation, of the National Fuel Gas Code ANSI
(American National Standards Institute) Z223.1 or applicable
provisions of local building code. In Canada, follow sections 7.2,
7.3, or 7.4 or Can/CGA (Canadian Gas Association) B149
Installation Codes or applicable provisions of local building code.
574D