48/50TC04---28, 50TCQ04---12
48/50HC04---14, 50HCQ04---12
F acto r y Ins talled O ptio n
R T U --- O P E N
Cont ro ls , St art---Up, Operat io n
and Tro uble s hoot ing I ns t r uct io ns
TABLE OF CONTENTS
SAFETY CONSIDERATIONS 2.........................
GENERAL 2.........................................
SENSOR/ACCESSORY INSTALLATION 2................
Sensors and Accessories 4.............................
User Interfaces 4.....................................
Install Analog Sensors 4...............................
Supply Air Sensor (SAT) 4...........................
Outdoor Air Sensor (OAT) 4..........................
Space Temperature Sensor (SPT) 4.....................
CO
2
Sensor(s) (IAQ and OAQ) 6......................
Relative Humidity Sensors 8..........................
Installing Discrete Inputs 8.............................
Compressor Safety 8................................
Humidistat 8......................................
Single Enthalpy (Outdoor Enthalpy) 8..................
Differential Enthalpy 8..............................
Fire Shutdown 9...................................
Filter Status 9......................................
Fan Status 9.......................................
Remote Occupancy 9................................
Communication Wiring--Protocols 10.....................
General 10........................................
I--Vu OPEN 10....................................
BACnet MS/TP 10.................................
Modbus 11.......................................
Johnson N2 11.....................................
LonWorks 11......................................
Local Access 12....................................
START--UP 13........................................
Additional Installation/Inspection 13.....................
Service Test 13......................................
Fan Test 13.......................................
Compressor 1 and Compressor 2 Test 13.................
Heat 1 and Heat 2 Test 13............................
Reversing Valve Test 13.............................
Dehumidification Test 14.............................
Power Exhaust Test 14..............................
Economizer Test 14.................................
Analog Output 2 Test 14.............................
Configuration 14....................................
Setpoint 14.......................................
Unit 14..........................................
Inputs 15.........................................
Service 16........................................
Clockset 16.......................................
USERPW 17......................................
OPERATION 17......................................
Occupancy 17.......................................
Indoor (Supply) Fan 17...............................
Cooling 18.........................................
Economizer 18......................................
Power Exhaust 18....................................
Heating 18.........................................
Indoor Air Quality 19.................................
Dehumidification 19..................................
Demand Limit 19....................................
Unoccupied Free Cooling 19...........................
Optimal Start 20.....................................
Fire Shutdown 20
....................................
Compressor Safety 20.................................
Fan Status 20.......................................
Filter Status 20......................................
Door Switch 20......................................
Linkage 20.........................................
TROUBLESHOOTING 21..............................
General 21.........................................
Thermistor Troubleshooting 21.........................
Software Version 21..................................
Communication LED’s 22.............................
Alarms 24..........................................
Third Party Networking 26.............................
APPENDIX A -- USER INTERFACE MENUS 27............
APPENDIX B -- THIRD PARTY POINTS LIST 36...........
RTU--OPEN START--UP SHEET 41......................
Copyright 2010 Carrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231 Printed i n U.S.A. Edition Date: 08/10
Manufacturer reserves the r ight to change, at any time, specifications and designs without notice and without obligations.
Catalog No:48---50HCTQ---01T
Replaces: NEW
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