3
ACCESSORIES AND COMPLIANCE
Accessories List
The EconoMi$er X system has several field-installed accessories 
available to optimize performance. Refer to Table 
4 for authorized 
parts and power exhaust descriptions.
* When available order MicroMetl PN 9901-2022-DIFF JC2.
Compliance
Economizers meet California Energy Commission Title 24 
mandatory section 120.2.i for Fault Detection and Diagnostic 
controls.
Economizers meet ASHRAE 90.1 Fault Detection and Diagnostic 
requirements.
Economizers meet IECC Fault Detection and Diagnostic 
requirements.
NOTE: IECC requires differential return air sensor, which must be 
ordered separately. See Accessory CRDIFRASN01A00.
INSTALLATION
See Fig. 1 for component locations.
1. Turn off power supply(s) and install lockout tag.
2. Remove the existing unit filter access panel. Raise the panel 
and swing the bottom outward. The panel is now disengaged 
from the track and can be removed and discarded. (See 
Fig. 2.) 
3. Remove the indoor coil access panel and discard. (See 
Fig. 2.)
4. Slide the EconoMi$er X assembly into the rooftop unit. (See 
Fig. 3.) 
5. Slide the EconoMi$er X assembly all the way back and into 
the horizontal R/A (Return Air) opening. (See Fig. 3.)
NOTE: Be sure that the arrow on the actuator motor is pointing to 
“Run” and not to “Test.” If the arrow is at “Test,” the Economizer 
damper will drive open.
6. Attach O/A (Outside Air) panel over the panel opening, then 
lift the economizer. Match the ID (inside dimension) of the 
panel with the ID of the economizer, then attach using pro-
vided screws. (See Fig. 4.)
7. If the EconoMi$er X system will be operating with an 
enthalpy outside air sensor, remove the factory installed 
HH79AH001 dry bulb sensor from the front face of the 
economizer (see Fig. 1), and install the accessory enthalpy 
sensor HH57AC081 in the same location. Connect the (2) 
wire gray harness with plug from the EconoMi$er X 
assembly to the enthalpy sensor. See page 7 for wiring 
diagram. Refer to page 8 “Installing Optional HH57AC081 
Outside Air Enthalpy Sensor” section for more details on 
enthalpy settings.
Fig. 1 — EconoMi$er X Component Locations
(CRECOMZR085A00 Shown)
Fig. 2 — Filter Access View
Table 4 — EconoMi$er
®
 X Field-Installed Accessories
DESCRIPTION PART NUMBER
208/230-v 1PH Power Exhaust CRPWREXH028A01
460-v 3PH Power Exhaust  CRPWREXH029A01
Enthalpy Sensor (OA) HH57AC081
Differential (Return) Sensor CRDIFRASN01A00*
CO
2
 Sensor and Aspirator Box CRCBDIOX005A00
Return Air CO
2
 Sensor (4 to 20 mA) CRCBDIOX002A00
CO
2
 Room Sensor (4 to 20 mA)
33ZCSENCO2 or
CGCDXSEN004A00
Aspirator Box for Duct Mount CO
2
 
Sensor (4 to 20 mA)
33ZCASPCO2 or
CGCDXASP001A00
Economizer Angle Seal Kit for use with 
unit's with Hinged Filter Door – for 
Small Cabinet
CRPECONV003A00
Economizer Angle Seal Kit for use with 
unit's with Hinged Filter Door – for 
Large Cabinet
CRPECONV004A00
Economizer Angle Seal Kit for use with 
unit's with Hinged Filter Door – for 
Extra Large Cabinet
CRPECONV007B00
Actuator
HH79AH001
Outside Air 
Temperature
Sensor
Outside Air
Damper
Wiring 
Harness
Filter Access Panel
Indoor Coil Access Panel