Carrier RTU OPEN 11-808-427-01 Installation And Startup Manual page 21

Optional
*
**
***
J4 Inputs
off
Turn
1
Connect the input and output wiring to the screw terminals on the RTU Open.
2
NOTE
When utilizing the controller's 24 Vdc auxiliary power out, the total current demand for these two
input channels must not exceed 40 mA (100mA per channel).
RTU Open
Safety chain devices, field-installed - normally closed. Apply 24 Vac to this terminal
J1
(jumper from - 1 to
Fire shutdown device, field-installed, configurable as normally open or closed
Enthalpy switch, field-installed - configurable as normally open or closed
the RTU Open's power.
J1
- 9) where no safety devices are installed.
15