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Power Exhaust Hood —
Numbers are as follows: CRPWREXH014A00 (3 to 6 Ton
Unit), CRPWREXH015A00 (for a 7
CRPWREXH016A01, and CRPWREXH017A01 (both in-
clude a vertical EconoMi$er Assembly). Refer to Fig. 23-30
for power exhaust assembly and installation.
Power Exhaust Assembly Kit Contents:
1 — Power Exhaust Hood Top
1 — Power Exhaust Hood Bottom
2 — Power Exhaust Hood Sides
1 — Power Exhaust Fan Divider Plate
1 — Damper Block-Off Plate with 2 x 4 in. Junction Box
2 — Power Exhaust Hood Braces
1 — Power Exhaust Hood Screen
1 — Power Exhaust Fan Assembly
4 — U-Clips
5
40 —
/
in. No. 10 Sheet Metal Screws
8
1 — Seal Strip —
1
/
x
7
/
in.
8
8
3
3
1 — Seal Strip —
/
x
/
in.
4
4
NOTE: The Power Exhaust Hood installation is the same
procedure for both a vertical and horizontal EconoMi$er.
(See Table 2 for Power Exhaust Power Requirements.)
Table 2 — Power Requirements
POWER
EXHAUST
TOTAL AMPS
SIZE
3 to 6 Ton
1.40 @ 60 Hz
7
1
/
to 12
1
/
2
2
3.04 @ 60 Hz
Ton
MOCP — Maximum Overcurrent Protection
If installing the Power Exhaust Assembly as a retrofit to an
existing vertical or horizontal EconoMi$er or as a new installa-
tion, proceed as follows:
1. Remove the OA panel and hood assembly from the
rooftop. Discard panel if the EconoMi$er was not fac-
tory installed.
2. Remove the lower exhaust hood from the hood assem-
bly by removing the top, sides, and bottom panels.
(See Fig. 14 and 16.) Discard the lower exhaust hood
panels.
3. Remove the OA block-off plate located adjacent to the
EconoMi$er damper, and discard it. (See Fig. 18.)
IMPORTANT: Motors are rated for 230 VAC,
1 Phase, and 50/60 Hz. For 460 VAC applications,
use an HT01AH850 transformer. For 575 VAC appli-
cations, use a HT01AH859 transformer.
To assemble the power exhaust hood:
3
3
1. Install the
/
x
/
in. seal strip on the top panel of the
4
4
power exhaust hood. Install the
the power exhaust hood side panels and bottom panel.
Assemble the power exhaust side panels, then bottom
panel as shown in Fig. 23.
2. Attach the hood top panel to the side panels.
3. Skip Step 4 if this is a retrofit installation.
Power exhaust hood kit Part
1
1
/
to 12
/
Ton Unit),
2
2
MOCP
230 V
460 V
575 V
15.0
15.0
15.0
1
7
/
x
/
in. seal strip on
8
8
4. Assemble the OA side panels, then top panel, to the
OA panel. (See Fig. 24.)
5. Slide the OA inlet screens into the screen track on the
hood side panels. While holding the screens in place,
fasten the screen retainer to the hood. (See Fig. 24.)
6. Attach the exhaust hood side braces to the power
exhaust side panels and OA hood top. (See Fig. 25.)
3/4 x 3/4 IN.
OUTDOOR
SEAL STRIP
AIR PANEL
1/8 x 7/8 IN.
SEALSTRIP
POWER
EXHAUST
HOOD SIDES
SIDE BRACE
Fig. 23 — Power Exhaust Hood Assembly
1/8 x 7/8 IN.
SEAL STRIP
OUTDOOR
AIR PANEL
1/8 x 7/8 IN.
SEAL STRIP
ASSEMBLED
POWER
EXHAUST
HOOD
SIDE BRACE
OUTDOOR AIR
HOOD SIDES
Fig. 24 — Outdoor Air Hood Assembly
with Power Exhaust Assembly
SIDE BRACE
Fig. 25 — Completed Hood Assembly
with Power Exhaust
8
POWER EXHAUST
HOOD TOP
EXHAUST FAN
DIVIDER PANEL
POWER EXHAUST
HOOD SCREEN
POWER EXHAUST
FAN ASSEMBLY
OUTDOOR AIR
HOOD TOP
SCREEN
RETAINER
OUTDOOR AIR
INLET SCREENS
OUTDOOR AIR
HOOD TOP
POWER EXHAUST
SIDE PANELS
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