Reznor RPB Unit Installation Manual - Manual (Page 11)

Form I-RPB, P/N 131782 R12, Page 11
Oval Adapter Assy,
PN/ 103025
Venter Seal Plate,
P/N 43446
FIGURE 6A - Installation of Adapter
for Optional Vertical Flue Discharge
(Option CC3, P/N 45021)
Attach the venter seal plate and oval
adapter assembly with sheetmetal screws.
Use venter seal plate as drill template.
5” Vent Cap,
P/N 110052
5” dia Flue Pipe
4’
(1.2M)
5” dia
90° Elbow
18” (457mm) Straight Pipe
Oval Adapter Assy
Combustion Air Intake
Support angles for flue pipe.
Recommended size is
1/2”x1/2”, 20 gauge
FIGURE 6B -
Installation of
the Vent Cap
(included in the
option pkg) and
the field-supplied
piping and
supports
6.3 Unit Inlet Air Depending on how the unit was ordered, the blower cabinet can have a variety of
outside air and return air inlets. The cabinet end can be open requiring a field-installed
hood , Option AS2, (See Paragraph 6.3.1), or the cabinet end can have a duct flange
(see dimensions in Paragraph 4.1, FIGURE 1). With either a hood or duct flange, the
inlet can have a damper. Dampers are available in a variety of configurations with a
variety of controls (AR Options). Options AR 6 and 7 have a 30% outside air hood and
a one-louver damper.
When ordered, a filter rack with a variety of filter options, is factory-installed in the
blower cabinet.
If the unit is ordered with an evaporative cooling module (Option AS 3, 4, 5, or 8), it is
factory-attached to the blower cabinet and is the point of entry for outside air.
Check the unit to be aware of the inlet air requirements of your installation.
6.3.1 Field-Installed
Outside Air Hood Outside air hood (Option AS2) is a weatherized, screened hood designed to be field
assembled and installed around the horizontal inlet air opening of the blower cabinet.
The air hood includes factory-assembled louvers designed to help eliminate moisture
from the inlet air. Complete installation instructions are packaged with the air hood
option.
CAUTION: It is recommended that the inlet to the outside air
hood NOT be facing into the prevailing wind. Allow 14" (356mm)
minimum clearance from the bottom of the air hood to the mounting
surface.
Option AS2, 100% Outside Air Hood
Optional
100%
Outside
Air Hood
43-17/32” (1106mm)
4-5/8”
(117mm)
31-11/32”
(796mm)
14” (356mm)
minimum
NOTE: The width of the outside air hood
is the same as the width of the blower
cabinet.
FIGURE 7 - Dimensions
of Option AS2, Outside
Air Hood
RPB Size Width of Outside Air Hood
inches mm
125 53-3/8 1356
150,175 34-1/8 867
200,225 39-5/8 1006
250,300 47-7/8 1216
350 53-3/8 1356
400 58-7/8 1495