Table of Contents
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Document revision history
Important changes to this document are listed below. Minor changes such as typographical or formatting errors are not
listed.
Date
Topic
Troubleshooting > To get the serial
12/3/19
number
Appendix A > Service Configuration Fixed error in System Fire / Smoke description
8/30/19
Indoor Air CO2
Unit Configuration
7/3/19
Appendix A > Service Configuration VFD Speed Test - correction. Only Service Test muast be set to
2/4/19
What is the RTU Open controller?
Wiring devices to the RTU Open's
1/28/19
Rnet port
What is the RTU Open controller?
Specifications
10/29/18
To wire the Wireless Adapter for
wireless sensors
What is the RTU Open?
Field-supplied hardware
Wiring inputs and outputs
Wiring devices to the RTU Open's
Rnet port
Specifications
8/24/17
Service Test
8/21/17
Sequence of Operation >
Economizer
Specifications
4/24/17
Analog Outputs
4/18/17
Sequence of Operation - Cooling
RTU Open v3
Installation and Start-up Guide
Change description
As of 2019, serial numbers are laser-etched on the circuit
board
Corrected DCV Max Vent Damper Pos percent
Removed limit on Setpoint Adjustment Range
Enable. Previously, it stated that both Service Test and Fan Test
must be set to Enable.
J1 Input 5 (SMK) wire color corrected from gray to blue.
Removed star configuration from the first paragraph.
In the drawing, corrected wire color for J1 Input-5 to blue from
dark gray
Added surge CAUTION to Protection specification.
Added warning that the Wireless Adapter must be mounted on
the inside of the building
Removed SPT sensors.
Removed SPT sensors from space temperature sensors.
Removed SPT sensor from Input wiring table, added TruVu™ ET
Display, and referred user to the device's Installation and Start-
up Guide.
Combined overview and wiring on the zone sensors and
touchscreen devices. Added TruVu™ ET Display.
Reworded Rnet port specification and added power supplied by
Rnet port.
Reworded Protection specification and added first paragraph.
Added information that the unit must be shut down before
running Service Test and how to verify that.
Added information on Fault Detection & Diagnostics
Corrected total number of supported wireless sensors to 5.
Added the load impedance when AO channels are used in a
voltage output type application.
Correction - OAT added to cooling algorithm re:economizer
107
Document revision history
Code*
C-D
C-AE-MM-E
C-TS-RC-O
C-TS-RC-O
C-TS-CP-E
C-TS-RD-E-JA
X-TS-TS-O
C-TS-RD-E-D
X-TS-AK-E-CC
C-AE-WB-E
C-D
C-D
C-D
C-D
X-H-JS-O
C-TS-RD-BR
C-AE-WB-E
C-TS-JN-E
C-AE-WB-E
C-TS-OC-BR
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