22
Connecting Peripheral Devices to the Economizer
Controller
Refer to Fig. 34-39 for wiring details.
Fig. 34 — Temperature Sensor Connection
Fig. 35 — Relative Humidity Sensor Connection
• Outside Air:
Connect to the
OAT and COM
terminals of the
device.
• Return Air
(Differential):
Connect to the RAT
and S-COM
terminals of the
device.
•
Mixed Air: Connect
to the MAT and
COM terminals of
the device.
Mixed or Discharge Air Temperature Sensor
Outside Air Temperature Sensor
Return Air Temperature Sensor
Outside Air
Relative Humidity:
Connect to the
OAH and COM
terminals of the
device.
Return Air Relative
Humidity: Connect
to the RAH and
S-COM terminals of
the device.
•
•
Outside Air Relative Humidity Sensor
Return Air Relative Humidity Sensor