Filter
Top Products
15
OPTIONAL ECONOMI$ER — See Fig. 28 for EconoMi$er
component locations.
1. To remove the existing unit filter access panel, raise the
panel and swing the bottom outward. The panel is now
disengaged from the track and can be removed. Remove
the indoor coil access panel and discard. See Fig. 29.
NOTE: If installing an optional Power Exhaust Assembly,
refer to the EconoMi$er Power Exhaust Installation Instruc-
tions, then proceed to Step 6. Controller should be mounted in
vertical position as shown in Fig. 28.
2. To assemble the hood assembly remove the EconoMi$er
hood from its packaging. Locate the outdoor air opening
panel. See Fig. 30.
3. Install the 19 mm x 19 mm (
3
/
4
x
3
/
4
-in.) seal strip on the
exhaust air hood top panel. Install the 3 mm x 22 mm
(
1
/
8
x
7
/
8
-in.) seal strip on the exhaust air hood side panels
and bottom brackets. Assemble the exhaust air hood to
the outdoor air opening panel as shown in Fig. 30, using
the screws provided. Do not attach hood assembly to unit
at this time.
4. Install the 3 mm x 22 mm (
1
/
8
x
7
/
8
-in. seal strip on the
outdoor air hood top and side panels. Assemble the out-
door air hood to the outdoor air opening panel as shown
in Fig. 31, using the screws provided. Do not attach com-
pleted hood (Fig. 32) assembly to the unit at this time.
L/s
0.00
200 400 600 800 1000 1200
CFM
0.70
0.60
0.50
0.40
0.30
0.20
0.10
PRESSURE DROP (in. wg)
0
100 200 300
400 500
570
175
150
125
100
75
50
25
0
PRESSURE DROP (Pa)
Fig. 27 — Durablade Economizer Barometric Relief
Damper Characteristics
Fig. 26 — Wiring Connections for
Outdoor-Air Thermostat
CONTROLLER
BAROMETRIC
RELIEF DAMPERS
OUTDOOR AIR
TEMPERATURE
SENSOR
GEAR-DRIVEN
DAMPER
ACTUATOR
ECONOMI$ER
PLUG
Fig. 28 — EconoMi$er Component Locations
OUTDOOR-AIR
OPENING PANEL
FILTER ACCESS
PANEL
Fig. 29 — Typical Access Panel Locations
OUTDOOR AIR
OPENING PANEL
SEAL STRIP
EXHAUST AIR SCREEN
EXHAUST AIR
HOOD TOP
SCREEN
RETAINER
EXHAUST AIR
HOOD SIDES
EXHAUST AIR
BOTTOM BRACKET
Fig. 30 — Exhaust Air Hood Assembly