Carrier RTU Open v3 - Wiring a Compressor Safety

Installing the RTU Open
RTU Open v3 CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
38
To wire a status switch to the controller
NOTES
• Binary inputs 3, 5, 8, and 9 are configurable and may be used for
Fan Status
,
Filter Status
,
Remote
Occupancy,
or
Door Contacts
, if they have not already been used for their default functions.
• Follow device manufacturer's installation and operating instructions.
Wiring a compressor safety
This is typically provided by the manufacturer with the rooftop equipment. A compressor safety status may be
monitored if available.
Wiring specifications
Cable from sensor to controller: If <100 ft (30.5 meters) 22 AWG, unshielded
If >100 ft (30.5 meters) 22 AWG, shielded
Maximum length: 500 feet (152 meters)