Carrier RTU Open v3 - Page 21

Installing the RTU Open
RTU Open v3 CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
17
*Formatting the controller may result in lost information and should only be done under the guidance of Carrier
Control Systems Support.
Optional
* Safety chain devices, field-installed - normally closed. Apply 24 Vac to this terminal (jumper from
J1
- 1 to
J1
- 9) where no safety devices are installed.
** Fire shutdown device, field-installed, configurable as normally open or closed
*** Enthalpy switch, field-installed - configurable as normally open or closed