Carrier RTU Open v3 User Manual

Installing the RTU Open
RTU Open v3 CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
37
To wire an enthalpy switch (differential) to the controller
Wiring diagram for optional enthalpy sensor mounted in the return air for differential enthalpy:
Wiring a status switch
Filter - Part #CRSTATUS005A00 or field-supplied
Fan status - Part #CRSTATUS005A00 or field-supplied
Filter and/or fan status switches may be installed to provide a
Dirty Filter
indication or
Fan Running
status.
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)

Carrier RTU Open v3 Specifications

General

Brand	Carrier
Model	RTU Open v3
Category	Controller
Language	English