3
*Accessory CO
2
sensors.
†Accessory aspirator boxes required for duct-mounted applications.
**CRCBDIOX005A00 is an accessory that contains both 33ZCSENCO2
and 33ZCASPCO2 accessories.
INSTALLATION
Figure 1 shows component locations on the EconoMi$er X
system.
Vertical Installation
These economizers are designed to work in both vertical and
horizontal applications. These instructions are for vertical
installations.
1. Turn off unit power supply and install lockout tag.
2. Prepare the unit for economizer installation:
a. For units with 2 position damper installed, remove the
outside air hood. Unplug the damper actuator and
remove assembly from the unit.
b. For units with manual damper installed, remove the
manual damper and hood.
3. Remove the upper panel and bottom panel (provided with the
HVAC unit) on the end of the unit to expose the return
section. (See Fig. 2.) Save the screws for use later when
replacing the panel. The panels can be discarded.
Fig. 1 —
EconoMi$er X System Component
Locations
Fig. 2 —
Upper and Bottom Panel on End of Unit
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, with shroud attached 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 shroud flange (see
Fig. 5). Screw through the corner post and through the
economizer shroud. (See Fig. 4 and 5.)
Fig. 3 —
Unit Left Side Panel and Corner Post
Fig. 4 —
Side View
Table 5 —
EconoMi$er X
®
Sensor Usage
APPLICATION
ECONOMI$ER X
®
WITH OUTDOOR AIR DRY
BULB SENSOR
Accessories Required
Outdoor Air Dry
Bulb
The HH79AH001 outdoor air dry bulb sensor is
factory installed on the economizer.
Mixed Air
Sensor
HH79AH001 provided with economizer and
field-installed in blower compartment.
Single Enthalpy
HH57AC081
Differential Dry
Bulb or
Enthalpy
HH57AC081
CO
2
for DCV
Control using a
Wall-Mounted
CO
2
Sensor
33ZCSENCO2
OR
CGCDXSEN004A00
CO
2
for DCV
Control using a
Duct-Mounted
CO
2
Sensor
33ZCSENCO2 OR
CGCDXSEN004A00*
and
33ZCSENCO2
OR
CGCDXASP00100†
OR
CRCBDIOX005A00**
Outside Air
Damper
Economizer
Actuator
(This End)
Wiring
Harness
Return Air Damper
Upper End Panel
Shipped On
Base Unit
Bottom Panel
Shipped On
Base Unit
Indoor Fan Panel
Unit’s Left
Side Panel
Economizer
Shroud
Left
Corner
Post
EconoMi$er X
EconoMi$er X
Shroud
Screw
Economizer
To Base
Economizer
Actuator
