Bryant 548D Durablade Economizer Barometric Relief, Damper Characteristics C. Optional EconoMi$er

NOTE: Be sure to engage rear EconoMi$er flange under tabs in return air opening of the unit base. See Fig. 28.

8. Install the outdoor air block-off plate, then secure the EconoMi$er with the screws provided. See Fig. 27 and 29.

9. Remove and save the 12-pin blue and yellow wire jumper plug from the unit wiring harness located in the upper left corner and insert the EconoMi$er plug. Refer to wiring diagram Fig. 30 and 31. Also refer to Fig. 32 if installing an accessory power exhaust.

10. Remove shipping tape from barometric relief damp- ers and ensure dampers move freely.

ECONOMI$ER	CONTROLLER	GEAR-DRIVEN
PLUG		DAMPER
ACTUATOR

Fig. 21 — Durablade Economizer Barometric Relief

Damper Characteristics

C. Optional EconoMi$er

OUTDOOR AIR TEMPERATURE SENSOR

See Fig. 22 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. 23.

Controller should be mounted in vertical position as shown in Fig. 22.

2.Assemble the hood assembly as follows:

Remove the EconoMi$er hood from its packaging. Locate the outdoor air opening panel. See Fig. 24. Remove hood assembly shipping brackets located on back (sloped) side of EconoMi$er assembly. These brackets are used to retain hood assembly during shipping only.

3.Install the 1/8 x 3/4 in. seal strip on the exhaust air hood side panels and the bottom bracket. Assemble the exhaust air hood to the outdoor air opening panel as shown in Fig. 24, using the screws provided. Do not attach hood assembly to unit at this time.

4.Install the 1/8 x 7/8 in. seal strip on the outdoor air hood top and side panels. Assemble the outdoor air hood to the outdoor air opening panel as shown in Fig. 25, using the screws provided. Do not attach hood assembly to the unit as this time.

5.Slide the outdoor air inlet screens into the screen track on the hood side panels. While holding the screens in place, fasten the screen retainer to the hood using the screws provided. Repeat the process for the barometric exhaust air screen. Do not attach completed (Fig. 26) hood assembly to unit at this time.

6.Install the return air block-off plate over the return air duct opening. See Fig. 27.

7.Slide the EconoMi$er assembly into the rooftop unit. See Fig. 28 and 29.

BAROMETRIC

RELIEF DAMPERS

Fig. 22 — EconoMi$er Component Locations

OUTDOOR-AIR	FILTER ACCESS
OPENING PANEL	PANEL

Fig. 23 — Typical Access Panel Locations

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