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ACCESSORIES LIST
The EconoMi$er IV assembly has several field-installed
accessories available to optimize performance. Refer to Table 3
for authorized parts.
Table 3 — EconoMi$er IV Field-Installed Accessories
DESCRIPTION
Power Exhaust 208-230 v 3 Ph
Power Exhaust 460 v 3 Ph
Power Exhaust 575 v 3 Ph
Outdoor Air Enthalpy Sensor
Indoor Air Enthalpy Sensor
Return Air CO
Sensor (4 to 20 mA)
2
CO
Room Sensor (4 to 20 mA)
2
Aspirator Box for Duct Mount CO
(4 to 20 mA)
Space Temperature and CO
Sensor with Override (4 to 20 mA)
Space Temperature and CO
Sensor with Override and Set Point
(4 to 20 mA)
VERTICAL INSTALLATION
These economizers are designed to work in both a vertical and
horizontal applications. These instructions are for a vertical
installation.
1.
Turn off unit power supply and install lockout tag.
2.
Prepare the unit for economizer installation:
a. For units with two position damper installed, remove the
outside air hood. Unplug the damper actuator and
remove assembly from unit.
b. For units with manual damper installed, remove the
manual damper and hood.
3.
Remove the upper panel and bottom panel (provided with the
HVAC unit) on the end of the unit to expose the return
section. (See Fig. 2.) Save the screws for use later when
replacing the panel. The panels can be discarded.
CAUTION
PERSONAL INJURY HAZARD
Failure to follow this caution can result in personal injury and
damage to the unit.
Cover the duct opening as a precaution so objects cannot fall
into the return duct opening. Be sure to remove the cover when
installation is complete.
4.
Remove the unit's left side corner post and left side panel
from the unit to allow for easy economizer installation. (See
Fig. 3.)
5.
Install economizer, as shown in Fig. 3, into the return air
section of the unit. Be careful not to pinch the wires during
installation. The bottom of the economizer will rest on the
base of the unit. (See Fig. 4.)
6.
Reinstall the left side corner post on to the unit. Note the
corner post will sit behind the economizer flange. (See
Fig. 5.) Screw through the corner post and through the
economizer. (See Fig. 5 and 6.)
PART NUMBER
CRPWREXH068A00
CRPWREXH069A00
CRPWREXH070A00
HH57AC078
(Carrier and Bryant only)
AXB078ENT (ICP only)
CRENTDIF004A00
CRCBDIOX005A00
33ZCSENC02
2
33ZCASPCO2
Room
2
33ZCT55CO2
Room
2
33ZCT56CO2
Upper End Panel
Shipped On
Base Unit
Bottom Panel
Shipped On
Base Unit
Fig. 2 — Upper and Bottom Panel on End of Unit
Unit's Left
UNIT'S LEFT
Left
LEFT
Side Panel
SIDE PANEL
CORNER
Corner
POST
Post
Economizer IV
ECONOMI$ER IV
Fig. 3 — Unit Left Side Panel and Corner Post
Fig. 4 — Side View
7.
Insert provided screw through the bottom left rear of the
economizer and into the unit base. (See Fig. 4.) Reinstall the
unit's left side panel.
8.
Before the economizer is secured in place on the right hand
side, remove and save the 12-pin jumper plug from the unit
wiring harness. (See Fig. 7.) Insert the economizer plug into
the unit wiring harness plug.
NOTE: The 12-pin jumper plug should be saved for future use in
the event that the EconoMi$er IV assembly is removed from the
unit. The jumper plug is not needed as long as the EconoMi$er IV
assembly is installed.
4
Indoor Fan Panel
Economizer
Screw Economizer
To Base
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