Trane RTU: YSC

Re: Economizer Wiring / Setup

The economizer dampers and control are factor installed, but must be field setup and wired.

There are normally (2) plugs that must be attached to the economizer in the field.

• Power & Communication = (Blk, Blk, Red, Blu)
• Mixed Air Temperature (MAT) = (Pur, Blu)

The mixed air sensor ships separate and must be field installed.

• Installs between the evaporator coil and blower.
• Plugs into the factory Purple & Blue wires which are usually wire-tied with the blower motor power wires.

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