Carrier RTU OPEN 11-808-427-01 - Manual (Page 21)

RTU Open 15
4 Set the appropriate jumpers on the RTU Open.
J3 AO - 1 0 - 10 Vdc/4-20 mA
W1 Battery Jumper In (Do not remove)
W2 Format Jumper* Out
W3 Input 11 mA Jumper Out (mA not utilized on this channel)
W4 Input 11 Thermistor In (default position)
W5 Input 10 mA Jumper Out (mA not utilized on this channel)
W6 Input 10 Thermistor Jumper In (default position)
*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