Installing Differential Return Air Sensor - LG ARNU363DDA4 Installation Manual

INSTALLING DIFFERENTIAL RETURN AIR SENSOR

Installing Differential Return Air Sensor
When using the differential return enthalpy or dry bulb temperature option, differential return sensor must be field mounted in the system's
return duct work. In addition to using the sensor (Honeywell C7400S) for a single enthalpy sensor, it can also be used as a differential return
enthalpy or dry bulb sensor. Figure 37 shows the dual enthalpy boundaries in the W7220 JADE controller. With dual enthalpy The HIGH
LIMIT boundary is ES1 when there are no stages of mechanical cooling energized and HL (high limit) when a compressor stage is energized.
Table 4 shows the High Limit Curves for each setting.
To use the differential return air sensor, the DIP switches on the sensor must be set to ON-OFF-OFF� See Table 5�
See Table 6 for California Title 24 setting requirements by region�
Figure 39: Wiring the Differential Return Air Sensor.
Due to our policy of continuous product innovation, some specifications may change without notification.
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