beautypg.com

0 mechanical (cont'd), 3 unit inlet air (cont'd) – Reznor RPB Unit Installation Manual User Manual

Page 12

background image

Form I-RPB, P/N 131782 R11, Page 12

Installation Instructions - Option AS2, 100% Outside Air Hood

Refer to

FIGURE 8. All screw ends except those across the bottom should be inside

the air hood.

To avoid possible damage, it is recommended that the outside air hood be installed

after the system has been placed on the roof. The air hood should be installed before

the heater is operated. Do not install the hood while the system (furnace or blower) is

in operation.
1. Top Panel - On the air inlet side of the blower cabinet, remove the factory-installed

screws attaching the blower cabinet top. Slide the air hood

top panel underneath

the edge of the blower cabinet top.

The edge of the air hood top panel must be

between the blower cabinet top and the end panel. Reinsert all of the sheet-

metal screws.

Top Panel (edge must be

underneath cabinet top)

Left Side

Panel

Right Side

Panel

Factory-assembled Louver Assembly

including Moisture-Eliminating Louvers

and Screen

Bottom Panel

NOTE: Either a manufacturer

designed optional air inlet

hood as shown here or an

evaporative cooling module as

shown in Paragraph 6.3.4 is

required to ensure complete

weather resistance.

FIGURE 8 - Assembly Drawing of Option AS2 Outside Air Hood

6.3.1 Field-Installed

Outside Air Hood

(cont'd)

6.3 Unit Inlet Air

(cont'd)

6.0 Mechanical

(cont'd)

2. Side Panels - Slide the air hood right side panel into the groove in the blower cabinet end panel. Be sure that the

side panel is underneath and to the inside of the air hood top panel. Attach to the blower cabinet and the air hood

top using the required number of sheetmetal screws. Repeat with the left side panel.

3. Bottom Panel - Position the air hood bottom panel so that it is to the inside of the two side panels and above the

factory-installed support angle. Attach to the side panels.

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 screws).

b) Slide the support angle up so that it is against the bottom panel.

c) Tighten the screws.

Attach the support angle to the air hood bottom panel. The bottom panel of the air hood and the support angle should

be tight together; do not draw with the sheetmetal screws.

4. Louver Assembly - With the intake screen toward the inside of the hood position the pre-assembled vertical louver

assembly in the inlet opening of the air hood. Using the remaining sheetmetal screws, attach the louver assembly

to the air hood side panels at the holes.

RPB Size

125

150,175 200,225 250,300

350

400

Top Panel

100227 100228 100229 100230 100231 100232

Bottom Panel 100234 100235 100236 100237 100238 100239

Louver Assy

103773 103774 103775 103776 103777 103778

Screened Air Hood

for 30% Outside Air

Opening, Part of Inlet

Air Options AR6 and

AR7

The outside air hood included in the air inlet options that have a 30% outside air open-

ing (Option AR6 or AR7) is shipped separately for field installation. Instructions for

attaching are packaged with the air hood.

FIGURE 9 - Installation

of Air Hood on Cabinets

with 30% Outside Air

Opening Options

Blower

Cabinet

Remove two corner and

compete row of screws.

Slide top

flange

underneath

the cabinet

top.

Vertical Slots -

Slide side flanges

into these slots.

30% Outside

Opening Air Hood

1. On the inlet air side of the blower

cabinet, remove the factory installed

screws attaching the blower cabinet

top.

2. Slide the air hood top flange under-

neath the lip of the blower cabinet

top and the sides into the vertical

slots.

The air hood flange must be

between the blower cabinet top

and the cabinet end panel.

3. Reinsert all of the sheetmetal

screws.