Owner manual

3
Table of Contents
Safety .............................................................................................................................................. 5
General Description ...................................................................................................................... 10
Receiving Unit .............................................................................................................................. 10
Storage .......................................................................................................................................... 10
Direct Expansion (DX) Condensing Units ................................................................................... 11
Wiring Diagrams ........................................................................................................................... 11
Installation..................................................................................................................................... 12
Locating Unit ................................................................................................................................ 12
Forklifting the Unit ....................................................................................................................... 13
Lifting the Unit ............................................................................................................................. 13
Electrical ....................................................................................................................................... 13
Thermostat .................................................................................................................................... 15
Refrigerant Piping ......................................................................................................................... 15
Determining Refrigerant Line Size ....................................................................................... 16
Liquid Line ............................................................................................................................ 16
Suction Line .......................................................................................................................... 17
Hot Gas Bypass Line ............................................................................................................ 18
Hot Gas Reheat ..................................................................................................................... 19
Predetermined Line Sizes ..................................................................................................... 19
Startup ........................................................................................................................................... 23
Compressors .................................................................................................................................. 23
Charging Refrigerant & Adjusting Refrigerant Charge ................................................................ 23
Before Charging .................................................................................................................... 23
Checking Liquid Sub-Cooling .............................................................................................. 24
Adjusting Sub-Cooling and Superheat Temperatures ........................................................... 24
Operation....................................................................................................................................... 27
Thermostat Operation ................................................................................................................... 27
Compressor Operation .................................................................................................................. 27
Variable Capacity Compressor Controller .................................................................................... 27
Low Voltage Terminals ................................................................................................................ 28
High Voltage Terminals ................................................................................................................ 28
Low Ambient Options................................................................................................................... 30
Maintenance .................................................................................................................................. 30
Coils .............................................................................................................................................. 30
E-Coated Coil Cleaning ................................................................................................................ 30
DX Cooling ................................................................................................................................... 32
Condenser Fan Motor Lubrication ................................................................................................ 32
Replacement Parts ......................................................................................................................... 32
AAON - Longview ....................................................................................................................... 32
Warranty, Service, and Parts Department ..................................................................................... 32
Refrigerant Piping Diagrams ........................................................................................................ 33
CC Series Startup Form ................................................................................................................ 45
Literature Change History............................................................................................................. 49