Reznor ADFH Option - Installation - Roof Curbs Assembly - Manual (Page 9)

Form I-OPT-C, P/N 132900 R17, Page 9
A
B
B
C
D
E
D
F
D E
A
A
B
B
Install D and E
(See NOTE)
Install F
(See NOTE)
B
A
D
F
B
G
Install
G
FIGURE 3C - Install
Supply Duct Partition ( D ),
Bottom ( E ), Bottom Liner
( F ), and Air Baffle ( G )
6. Install supply air duct partition ( Code H ) and return air duct partition
( Code J ) using sheetmetal screws. (See FIGURE 3D).
a) Position partition ( Code H ) in the orientation illustrated. Align
the holes and attach the partition to curb sides ( B & B) and
bottom liner ( F).
b) Position partition ( Code J ) in the orientation illustrated. Align
the holes and attach the partition to curb sides ( B & B) and
bottom liner ( F).
7. Install supply air and return duct dividers ( Code K ) and ( Code L );
divider liners ( Code M ) and ( Code N ); and duct tops ( Code P ) and
( Code Q ) using sheetmetal screws. (See FIGURE 3E).
a) Position and attach duct dividers ( Codes K & L ) as illustrated.
Cover the insulation with liners ( Codes M & N ) and attach with
screws.
b) Position tops ( Codes P & Q ) with insulation side up. Align the
holes (push the insulation out of the way) and attach the perimeter.
8. Install field-supplied flashing (FIGURE 3B, page 8).
Insulation NOTE: There is no exposed
insulation in the ducts. All insulation in air-
flow paths is covered with a liner.
A
B
B
D
F
C
H
F
C
B
B
J
J
G
B
M
N
P
Q
K
L
B
L
K
C
C
And
corresponding
liners (M & N).
Install duct
tops (P
& Q).
(insulation
side)
B
B
Install
insulated
dividers
(K & L)
9. Before placing the MAPS ® unit or optional duct furnace on the curb:
ID P/N by Cabinet Size
D A-261658 B-261659 C-261673
E A-261660 B-261661 C-261674 & 261428
F A-261394 B-261395 C-261418 & 261429
G A-268604 B-268605 C-268606
NOTE: Cabinet C - Insulated
Bottom (Code E) and Bottom
Liner (Code F) are two piece
ID P/N by Cabinet Size
H A-261396 B-261397 C-261419
J A-261662 B-261663 C-261675
ID P/N by Cabinet Size
K A&B-261666 C-261677
L A-261667 B-261668 C-261678
M A-261408 B-261409 C-261426
N A&B-261405 C-261424
P A-261664 B-261665 C-261676
Q A&B-261669 C-261679
□
Apply 1/4" x 1-1/4" foam sealant tape to both the top surface of the curb rails and the top surface of the perimeter of the duct
dividers, being sure to make good butt joints at all corners.
□
If installing an optional duct furnace curb section (Option JH), place it on the curb before the unit. Follow the instructions in the
system installation manual.
□
When it is time to lift the MAPS ® unit or optional duct furnace onto the prepared curb (See Rigging and Lifting in the
unit installation manual, Form I-MAPS III&IV), be sure that all of the above preparations have been made. IMPORTANT:
Verify that the unit will be placed in the correct airflow orientation to mate properly with the discharge and return air openings.
Remember that the INLET AIR END OF THE UNIT is at the DISCHARGE (duct connection) END OF THE CURB.
FIGURE 3D - Install the Large Duct
Partitions
( H&J )
FIGURE 3E - Install Smaller
Duct Partitions and Liners ( K,
L, M, N ) and Duct Tops ( P&Q )