Carrier 48HJD005-007 specifications Durablade Economizer Barometric, Relief Damper Characteristics

	0.90
	0.80
wg)(in.	0.70
	0.60
DROP
	0.50
PRESSURE
	0.40
	0.30
	0.20
	0.10
	0.00
		100	200	300	400	500	600	700	800
					CFM

Fig. 22 — Durablade Economizer Barometric

Relief Damper Characteristics

OPTIONAL ECONOMI$ER — See Fig. 23 for EconoMi$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. 24.

If installing an optional Power Exhaust Assembly, refer to the EconoMi$er Power Exhaust Installation Instructions.

Controller should be mounted in vertical position as shown in Fig. 23.

2.Assemble the hood assembly as follows:

Remove the EconoMi$er hood from its packaging. Re- move shipping brackets holding hood package to EconoMi$er. Locate the outdoor-air opening panel. See Fig. 25. Remove hood assembly shipping brackets locat- ed on the back (sloped) side of the EconoMi$er assembly. These brackets are used to retain the hood assembly dur- ing 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. 25, using the screws provided. Do not attach hood assembly to unit at this time.

4.Install the 1/8 x 3/4 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. 26, using the screws provided. Do not attach hood assembly to the unit at 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. 27) hood as- sembly to unit at this time.

6.Install the EconoMi$er assembly into the rooftop unit. See Fig. 28 and 29.

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

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

8.Remove and discard the 12-pin jumper plug from the unit wiring harness located int he upper left corner and insert

the EconoMi$er plug into the unit wiring harness. Refer to wiring diagram Fig. 30 and 31. Also refer to Fig. 32 if installing an accessory power exhaust.

9.Install the complete hood assembly on the unit and secure using the screws provided.

10.Remove the indoor fan motor access panel. See Fig. 33.

11.Mount the supply-air temperature sensor to the lower left portion of the indoor blower housing with the two

(2) screws provided (see Fig. 34). Connect the violet and pink wires to the corresponding connections on the supply-air temperature sensor. Replace the indoor fan motor access panel.

ECONOMI$ER	CONTROLLER
PLUG
	GEAR-DRIVEN
	DAMPER

OUTDOOR AIR

TEMPERATURE

SENSOR

ACTUATOR

BAROMETRIC RELIEF DAMPERS

Fig. 23 — Economizer Component Locations

OUTDOOR-AIR	FILTER ACCESS
OPENING PANEL	PANEL

Fig. 24 — Typical Access Panel Locations

OUTDOOR AIR

OPENING PANEL EXHAUST AIR HOOD TOP

SCREEN

RETAINER

	EXHAUST AIR
SEAL STRIP	HOOD SIDES

EXHAUST AIR SCREEN

EXHAUST AIR BOTTOM BRACKET

Fig. 25 — Exhaust Air Hood Assembly

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