Table of Contents
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DESIRED CONTROL
METHOD
SINGLE DRY BULB
NONE: Outside air dry bulb sensor is
TEMPERATURE
CONTROL
DIFFERENTIAL DRY
BULB TEMPERATURE
CONTROL
SINGLE ENTHALPY
DIFFERENTIAL
ENTHALPY
LEGEND
N/A — Not available
NOTES:
1. CO
Sensors (Optional)
2
2. OAT
(Outdoor-Air
Thermistor)
accessory. Space
sensor required when using PremierLink
controls
INSTALLATION
Vertical Installation
These economizers are designed to work in both vertical and
horizontal applications. For a vertical installation:
1.
Turn off unit's 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 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. Save the screws for later when replacing the bottom
panel. The panels shipped with the unit can be discarded.
(See Fig. 1.)
4.
Remove the unit's left side corner post and left side panel to
allow for easy economizer installation. (See Fig. 2.)
.
Upper End Panel
Shipped On
Base Unit
Bottom Panel
Shipped On
Base Unit
Fig. 1 — Upper and Bottom Panel on End of Unit
Table 5 — PremierLink™ Controller Sensor Usage
FIELD-INSTALLED DRY BULB
ACCESSORY EconoMi$er
2
®
factory-installed
(1) CRTEMPSN001A00 or
(1) 33ZCT55SPT, T56, T59 or
(1) 33PILOT-01
(1) 33CSENTHSW
(1) 33CSENTHSW OR
(1) 33CSENTSEN
included
with
EconoMi$er
Indoor Fan Panel
FACTORY-INSTALLED DRY BULB
SENSOR EconoMi$er
2
®
NONE: Outside air dry bulb sensor is
factory-installed
(1) CRTEMPSN001A00 or
(1) 33ZCT55SPT, T56, T59 or
(1) 33PILOT-01
(1) 33CSENTHSW
(1) 33CSENTHSW and
(1) 33CSENTSEN
Left
Corner
Post
Economizer
Shroud
Fig. 2 — Unit Left Side Panel and Corner Post
5.
Install economizer, with shroud attached as shown in Fig. 2,
into the return air section of the unit. Be careful not to pinch
the wires during installation. The bottom of economizer will
rest on the base of the unit. (See Fig. 3 and 4.)
NOTE: The outside air damper is rated to meet ASHRAE require-
ments for leakage. It is important that the damper be perfectly
square in the unit.
6.
Reinstall the left side corner post on to the unit.
NOTE: The corner post will sit behind the economizer shroud
flange. (See Fig. 5.) Screw through the corner post and through
the economizer shroud. (See Fig. 3 and 5.)
7.
Insert provided screw through the bottom left rear of the
economizer and into the unit base. (See Fig. 3.) Reinstall the
unit's left side panel.
Economizer
Actuator
Screw
Economizer
To Base
8.
Before the economizer is secured in place on the right hand
side, remove and save the 12-pin jumper plug from the unit
wiring harness. (See Fig. 6.) Insert the economizer plug into
the unit wiring harness plug. (See Fig. 6.)
3
FACTORY-INSTALLED ENTHALPY
SENSOR EconoMi$er
N/A
N/A
NONE: Outside air dry bulb sensor is
factory-installed
Outside Air Enthalpy sensor is factory-
installed plus (1) 33CSENTSEN
Unit's Left
Side Panel
EconoMi$er X
Fig. 3 — Side View
2
®
Shroud
EconoMi$er 2
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