Carrier 48LC 09 User Manual

2
Programming Operating Schedules 10....................
SERVICE TEST 11....................................
Independent Outputs 11...............................
Fan Test 11.........................................
Cooling Test 11.....................................
Heating Test 11......................................
Automatic Test 12....................................
THIRD PARTY CONTROL 12..........................
Cooling/Heating Control 12............................
Dehumidification Control 12...........................
Remote Occupancy 12................................
Remote Shutdown 12.................................
Alarm Output 12.....................................
Economizer Damper Control 12.........................
CONTROLS OPERATION 12...........................
Display Configuration 12..............................
Unit Configuration 13.................................
General Operation 13.................................
Demand Determination 14.............................
Occupancy Determination 15...........................
Indoor Fan Operation 16...............................
Cooling Operation 17.................................
Optional Humidi--MiZer
R
Dehumidification System 19......
Indoor Fan Based Dehumidification 22...................
Heating Operation 22.................................
Supply Air Tempering 24..............................
Economizer Operation 24..............................
Power Exhaust 26....................................
Indoor Air Quality (IAQ) 26............................
Pre--occupancy Purge 27...............................
Temperature Compensated Start 27.......................
Linkage 28.........................................
Carrier Comfort Network
R
(CCN) Operation 28............
BACnet Network Operation 28.........................
Alarm Handling 28...................................
TROUBLESHOOTING 28..............................
Complete Unit Stoppage 29............................
Restart Procedure 29..................................
Faults and Alerts 29..................................
Control Module Communication 36......................
Communication Failures 36............................
Cooling Troubleshooting 37............................
Humidi--MiZer System Troubleshooting 38................
Economizer Troubleshooting 40.........................
Heating Troubleshooting 41............................
Phase Protection 44..................................
Thermistor Troubleshooting 44.........................
Sensor Trim 44......................................
Transducer Troubleshooting 44.........................
MAJOR S YSTEM COMPONENTS 49....................
General 49.........................................
Main Base Board (MBB) 55............................
Input-- Output Board (IOB) 57..........................
Integrated Gas Control (IGC) Board 58...................
Protective Devices 59.................................
Space Mounted Sensors 59.............................
Variable Frequency Drive (VFD) 61......................
LC 04--06 Variable Frequency Drive (ABB VFD) 61.......
LC 07--26 Variable Frequency Drive (Danfoss VFD) 65.....
Carrier Comfort Network
R
(CCN) Interface 74.............
APPENDIX A: SystemVut Controller Display 76...........
APPENDIX B: SystemVu Controller Text Point Reference 97...
APPENDIX C: Navigatort Display 98....................
APPENDIX D: SystemVu Controller CCN Tables 117.........
APPENDIX E: BACnet Points List 142....................
CONTROL SET POINT AND CONFIGURATION LOG 153...
UNIT START --UP CHECKLIST 163......................
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components. Only
trained and qualified service personnel should install, repair, or
service air-conditioning equipment. Untrained personnel can
perform the basic maintenance functions of replacing filters.
Trained service personnel should perform all other operations.
When working on air -conditioning equipment, observe precautions in
the literature, tags and labels attached to the unit, and other safety
precautions that may apply. Follow all safety codes. Wear safety
glasses and work gloves. Use quenching cloth for unbrazing
operations. Have fire extinguis hers ava i lable for all bra zing operations.
Follow all safety codes. Wear safety glasses and work gloves. Have
fire extinguisher available. Read these instructions thoroughly and
follow all warnings or cautions attached to the unit. Consult local
building codes and National Electrical Code (NEC) for special
requirements.
Recognize safety information. This is the safety-- alert symbol
.
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.
Unders t a nd the signa l words DANGER, WARNING, and CAUTION.
Thes e words are used with the sa f e t y--al e r t symbol. DANGER
identifies the most serious hazards which will re sult in severe personal
injury or death. WARNING signifies a hazard which could result in
personal injury or dea t h. CAUTION is use d to ide ntify unsa f e
practices which may re sult in mi nor per sonal injury or product a nd
property dam age. NOTE is used to highl ight suggestions which will
result in enhanced installation, reliability, or operation.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal injury
or death.
Before performing service or maintenance operations on
unit, turn off main power switch to unit and install lockout
tag. Ensure electrical service to rooftop unit agrees with
voltage and amperage listed on the unit rating plate.
!
WARNING

Carrier 48LC 09 Specifications

General

Brand	Carrier
Model	48LC 09
Category	Air Conditioner
Language	English