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Carrier RTU Open v3 Integration Guide
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RT
U O
pe
n v
3
Carrier Proprietary and C
onfidential
CARRIER CORPORATION ©
2016
Integ
ration Guide
All right
s
reserved
52
Important
change
s to thi
s docum
ent are lis
ted bel
ow. Mino
r changes s
uch as typ
ographic
al or f
ormatti
ng errors
are not
listed.
Date
Topic
Chan
ge descr
iptio
n
Code*
2/22/16
Start
-
up
Added USB Link wiri
ng caution.
C-
TS
-
RD
-E-JH
1/8/16
Configuring for BACnet M
S/TP
Added not
e that controlle
r counts as a full lo
ad on the MS/T
P bus.
C-
TS
-
RD
-E
*
For internal us
e only
Docum
ent revi
sion histo
ry
55
57
Table of Contents
Table of Contents
3
Introduction
5
What Is the RTU Open Controller
5
Safety Considerations & Handling Warning
7
Wiring Inputs and Outputs
8
Communications Wiring
10
Protocol Overview
10
Bacnet MS/TP
11
To Set up the RTU Open for Bacnet MS/TP
11
Troubleshooting Bacnet MS/TP
12
Modbus
13
To Set up the RTU Open for Modbus
13
Troubleshooting Modbus
15
Johnson N2
16
To Set up the RTU Open for N2
16
Troubleshooting N2
17
Lonworks
18
To Set up the RTU Open for the Lonworks Option Card (Part #LON-OC)
18
Commissioning the Controller for Lonworks Communication
19
Troubleshooting Lonworks
20
Start-Up
21
Sequence of Operation
22
Occupancy
22
Supply Fan
23
Cooling
23
Economizer
24
Power Exhaust
25
Pre-Occupancy Purge
25
Unoccupied Free Cooling
25
Optimal Start
26
Enthalpy Control
27
Indoor Air CO2
27
Heating
28
Heat Pump Operation
28
Dehumidification
29
Demand Limiting
29
Door Switch
29
Remote Occupancy
30
Fire Shutdown
30
Compressor Safety
30
Fan Status
30
Filter Status
31
Alarms
31
Linkage
33
Air Source Mode Determination
35
Troubleshooting
36
Led's
36
Compliance
38
FCC Compliance
38
CE Compliance
38
Bacnet Compliance
38
Appendix A: Network Points List for RTU Open
39
Network Points List for Bacnet and Modbus
39
Network Points List for N2 and Lonworks
47
Appendix B: Bacnet Protocol Implementation Conformance Statement
50
Appendix C: Modbus Protocol Implementation Conformance Statement
51
Appendix D: Johnson N2 Protocol Implementation Conformance Statement
53
Appendix E: Lonworks Protocol Implementation Conformance Statement
55
Document Revision History
56
Index
57
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Carrier RTU Open v3 Specifications
General
Brand
Carrier
Model
RTU Open v3
Category
Controller
Language
English
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