Installing the RTU Open
RTU Open v3 CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
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• Factory-installed enthalpy switches terminate at
wires 6 (switch input) and 7 (24 Vac).
• Input channel must be configured for the enthalpy contact (N.O. or N.C.) that you use.
Wiring diagram for factory-installed enthalpy switch:
Factory-installed enthalpy switches terminate at
wires 6 (switch input) and 7 (24 Vac).