48
ECONOMIZER SYSTEMS
The unit may be equipped with a factory-installed or accessory
(field-installed) economizer system. Three types are available:
two with logic control systems (EconoMi$er
®
X and
EconoMi$er IV) and one without a control system
(EconoMi$er2). See Fig. 66-68 for component locations on
each type.
Economizers use direct-drive damper actuators.
Fig. 66 — EconoMi$er X Component Locations
Fig. 67 — EconoMi$er IV Component Locations
Fig. 68 — EconoMi$er2 Component Locations
IMPORTANT: Any economizer that meets the economizer
requirements as laid out in California’s Title 24 mandatory
section 120.2 (fault detection and diagnostics) and/or pre-
scriptive section 140.4 (life-cycle tests, damper leakage, 5
year warranty, sensor accuracy, etc), will have a label on the
economizer. Any economizer without this label does not
meet California’s Title 24. The five year limited parts war-
ranty referred to in section 140.4 only applies to factory
installed economizers. Please refer to your economizer on
your unit.
Honeywell
HH79AH001
EconoMi$er X
Harness
Outside Air
Temperature Sensor
EconoMi$er IV
Controller (W7212)
Outside Air
Temperature Sensor
Low Ambient
Sensor
EconoMi$er2 Plug
Outside Air
Temperature Sensor
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