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Table of Contents
Safety .............................................................................................................................................. 5
CB Base Model and Features Description ...................................................................................... 8
General Description ........................................................................................................................ 9
Codes and Ordinances................................................................................................................. 9
Receiving Unit ............................................................................................................................ 9
Storage ........................................................................................................................................ 9
Direct Expansion (DX) Condensing Units ............................................................................... 10
Wiring Diagrams ....................................................................................................................... 10
Installation..................................................................................................................................... 11
Locating Unit ............................................................................................................................ 11
Lifting the Unit ......................................................................................................................... 12
Electrical ................................................................................................................................... 12
Thermostat ................................................................................................................................ 14
Refrigerant Piping ..................................................................................................................... 14
General .................................................................................................................................. 14
Determining Refrigerant Line Size ....................................................................................... 15
Liquid Line Sizing ................................................................................................................ 15
Suction Line Sizing ............................................................................................................... 16
Hot Gas Bypass Line ............................................................................................................ 17
Hot Gas Reheat ..................................................................................................................... 18
Predetermined Line Sizes ..................................................................................................... 18
Startup ........................................................................................................................................... 21
Compressors .............................................................................................................................. 21
Charging Refrigerant & Adjusting Refrigerant Charge ............................................................ 21
Before Charging .................................................................................................................... 21
Checking Liquid Sub-cooling ............................................................................................... 22
Checking Evaporator Superheat ........................................................................................... 22
Adjusting Sub-cooling and Superheat Temperatures ........................................................... 22
Air Flow .................................................................................................................................... 23
Operation....................................................................................................................................... 25
Thermostat Operation ............................................................................................................... 25
Compressor ............................................................................................................................... 25
Variable Capacity Compressor Controller .................................................................................... 25
Low Ambient Options................................................................................................................... 28
Maintenance .................................................................................................................................. 28
Coils .......................................................................................................................................... 28
E-Coated Coil Cleaning ............................................................................................................ 28
DX Cooling ............................................................................................................................... 30
Condenser Fan Motor ............................................................................................................... 30
Replacement Parts ..................................................................................................................... 30
Warranty, Service, and Parts Department ................................................................................. 30
Refrigerant Piping Diagrams ........................................................................................................ 31
CB Series Startup Form ................................................................................................................ 43
Literature Change History............................................................................................................. 45
