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