2
GENERAL
The EconoMi$er2 accessories with 4 to 20 mA actuator signal
control, do not have a built-in controller. The EconoMi$er2
actuator is operated by a 4 to 20 mA signal from an existing
field-supplied controller (such as PremierLink
™
control).
A 12-pin plug is provided for connection to the control. (See
Fig. 1.)
The EconoMi$er2 system utilizes gear-drive technology with a
direct-mount, spring-return actuator that will close upon loss of
power. Differential dry bulb, enthalpy, and differential enthalpy
sensors are available for field installation. Field-installed CO
2
sensors are available. (See Table 1.)
Standard barometric relief dampers provide natural building
pressurization control. An optional power exhaust system is
available for applications requiring even greater exhaust
capabilities. Power exhaust is controlled by the field-supplied
controller.
NOTES:
1. CO
2
Sensors (Optional)
a. 33ZCSENCO2 - Room sensor (adjustable). Aspirator box is
required for duct mounting of the sensor.
b. 33ZCASPCO2 - Aspirator box used for duct-mounted CO
2
room
sensor.
c. 33ZCT55CO2 - Space temperature and CO
2
room with over
-
ride.
d. 33ZCT56CO2 - Space temperature and CO
2
room sensor with
override and setpoint.
2. All units include the following standard Sensors:
a. Outdoor - Air Sensor - HH79NZ039
Fig. 1 — EconoMi$er2 Component Locations
IMPORTANT: Read these instructions completely before
attempting to install the accessory EconoMi$er2 system.
IMPORTANT: These economizers meet all the economizer
requirements as laid out in California’s Title 24 mandatory
section 120.2 (fault detection and diagnostics).
Table 1 — Sensor Usage
APPLICATION
OUTDOOR AIR TEMPERATURE
SENSOR
RETURN AIR TEMPERATURE
SENSOR
OUTDOOR AIR
ENTHALPY SENSOR
RETURN AIR
ENTHALPY SENSOR
DRY BULB
TEMPERATURE
Included
HH79NZ039
33ZCSENSAT (Required for
ComfortLink to Title 24)
—
—
DIFFERENTIAL
DRY BULB
TEMPERATURE
Included
HH79NZ039
Required — 33ZCSENSAT
—
—
SINGLE
ENTHALPY
Included
HH79NZ039
33ZCSENSAT (Required for
ComfortLink to Title 24)
Required — HH57AC077
—
DIFFERENTIAL
ENTHALPY
Included
HH79NZ039
33ZCSENSAT (Required for
ComforLink to Title 24)
Required — HH57AC077
Outside Air
Damper
Economizer
Actuator
Wiring
Harness
Outside Air
Temp (OAT)
sensor
Return Air Damper