Reznor ADFH Unit Installation Manual User Manual
Page 13
Form I-ADF, P/N 131805 R5, Page 13
43-17/32 (1106mm)
4-5/8
(117mm)
31-11/32
(796mm)
14 (356mm) minimum
Screened Outside
Air Hood
with Filters
FIGURE 9A - Optional
Screened Outside Air
Hood with Filters
Factory assembled and
shipped separately for field
installation.
FIGURE 9B -
Installation and
Dimensions of Outside
Air Hood with Filters
Instructions for installing pre-assembled outside air hood with filters:
1. On the inlet air end of the system, remove the row of factory-installed screws
attaching the cabinet top.
2. Tip the assembled air hood slightly and slide the top flange underneath the cabinet
top. The air hood must be between the cabinet top and the end panel. Slide the
side flanges into the slots between the corner posts and the end panel. (See
FIGURE 9A).
3. Re-insert all of the screws across the top of the cabinet.
4. The air hood bottom should be resting on the factory-installed support angle across
the bottom of the cabinet. If the bottom panel does not rest tightly against the
support angle, follow these instructions to adjust the position of the support angle:
a) Slightly loosen (do not remove) the support angle screws.
b) Slide the support angle up (holes are slotted) so that it is against the bottom
panel.
c) Tighten the screws.
5. If equipped with an optional dirty filter switch, locate the coil of clear tubing
attached to the dirty filter switch in the electrical compartment. Extend the tubing to
the air entering side of the filter rack. Attach the end of the tubing being careful that
it is not compressed or kinked. (See Paragraph 7.3 for switch details.)
Slide the air hood top flange
underneath the cabinet top.
NOTE: Width is
the same as cabi-
net without filters;
see
FIGURE 8A.
The optional filter cabinets are designed for field attachment to systems that are
installed indoors. The cabinet has a 1" duct flange for attachment of ductwork to bring
in outside makeup air to the system. The cabinet is available with 1" or 2" permanent,
2" disposable, or 2" pleated disposable filters. There is a filter access door on both
sides of the cabinet.
Installation Instructions: The cabinet and filter racks with filters are factory assem-
bled and shipped separately for attachment to the system at the job site.
1. On the inlet end of the system, remove the row of factory-installed screws
attaching the cabinet top.
2. Tip the assembled filter cabinet slightly and slide the top flange underneath the
cabinet top. (Refer to
FIGURE 9B above.)
6.2.3 Indoor Filter
Cabinet - Options
AW3, AW6, AW13,
AW15
1-1/4
(32mm)
A
B
3 (76mm)
C
D
E
FIGURE 10 - Dimensions of Indoor Filter Cabinet
Size
300
500
700/1200
Size
300
500
700/1200
Dimensions (inches)
Dimensions (mm)
A
34-1/8
47-13/16
58-15/16
A
867
1214
1497
B
33-1/16
33-1/16
33-1/16
B
840
840
840
C* 16-13/16 16-13/16
16-13/16
C*
427
427
427
D**
31-1/4
45
56
D**
794
1143
1422
E**
30-1/2
30-1/2
30-1/2
E**
775
775
775
* Includes 1" duct flange extending perpendicular to the duct opening.
** Duct connection.
The filter cabinet flange must be between the cabinet top and the end panel. Slide
the side flanges into the slots between the corner posts and the end panel.