AAON RQ SERIES, Manual

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Table of Contents
Variable Speed Scroll Compressor Supplement ............................................................................. 1
RQ Series Variable Speed Compressor Components ................................................................. 5
Introduction ..................................................................................................................................... 8
Variable Speed Scroll Compressors................................................................................................ 8
Product Description .................................................................................................................... 8
Compressor Motor ...................................................................................................................... 8
Oil Pump ..................................................................................................................................... 8
Compressor Temperature Protection .......................................................................................... 8
Oil Recovery ............................................................................................................................... 8
Motor Protection ......................................................................................................................... 8
Starting and Stopping Routine .................................................................................................... 8
Oil Type ...................................................................................................................................... 9
Maximum Tilt Angle .................................................................................................................. 9
Contaminant Control ................................................................................................................... 9
Discharge Check Valve............................................................................................................... 9
Electrical Troubleshooting ........................................................................................................ 10
Three Phase Series Variable Speed Drives ................................................................................... 11
Product Description .................................................................................................................. 11
Theory of Drive Operation........................................................................................................ 11
Nomenclature ............................................................................................................................ 11
Temperature & Humidity .......................................................................................................... 11
Power On/Off ............................................................................................................................ 11
Communication Setting ............................................................................................................ 11
Input Voltage and Input Current ............................................................................................... 12
Power Factor Correction ........................................................................................................... 12
Speed Control............................................................................................................................ 12
Fault Clearing............................................................................................................................ 12
Status Indication........................................................................................................................ 12
LED for COMMS MCU ........................................................................................................... 12
Drive Over Temperature Protection .......................................................................................... 13
Power Interrupt ......................................................................................................................... 13
Air Cooled Heat Exchanger ...................................................................................................... 13
Foldback .................................................................................................................................... 13
Troubleshooting ............................................................................................................................ 13
Variable Speed Compressor Temperature Control ....................................................................... 21
Modular Silicon Expansion Valve and Universal SuperHeat Controller/Sensor Hardware
Installation..................................................................................................................................... 22
Additional Product Markings for USHC-G1.3b and USHS-G1.3b .......................................... 22
About the MSEV and USHX .................................................................................................... 22
Mechanical Installation ............................................................................................................. 24
Electrical Wiring ....................................................................................................................... 28
Troubleshooting ........................................................................................................................ 32