AC & Heat Pump

AC Troubleshooting Guide
Troubleshooting Chart
Pressure Temp. Chart
Component Analysis

Furnaces, Boilers & Radiators

Pilot Reignition Furnace
Standing Pilot Furnace
Hot Surface Ignition Furnace

Air Quality Components

Basic Troubleshooting

Thermostats & Controls

Basic Troubleshooting
Programming Tips
Advanced Programming

Additional Information

Material Safety Data Sheets
Web Links
Equipment Size Calculator
Equipment Tech Guides


Home Owners Section


Air Cooled Chillers
Tonnage Range Model # Trade Name Basic Description
10 - 60 tons YCAL Millennium R-410a, Scroll Compressors
70 - 150 tons YLAA Tempo R-410a, Scroll Compressors
150 - 385 tons YCIV Latitude R-134a, Screw Compressor with VSD (460V)
150 - 515 tons YCAV Latitude R-134a, Screw Compressor with VSD (200V/230V/575V)

Water Cooled Chillers - Electric
Tonnage Range Model # Trade Name Basic Description
50 - 150 tons YCWL R410a, Scroll Compressors
90 - 210 tons YCWS Millennium R-407c, Screw Compressor
90 - 200 tons YCRS Millennium R-407c, Screw Compressor with Remote Condenser
200 - 430 tons YR MaxE R-134a, Screw Compressor
100 - 675 tons YS MaxE R-134a, Open Drive Screw Compressor
250 - 3000 tons YK MaxE R-134a, Single Centrifugal Compressor
700 - 2400 tons CYK MaxE R-134a, Centrifugal Compound Compressors
2000 - 6000 tons YD MaxE R-134a, Dual Centrifugal Compressors
2000 - 8500 tons OM Titan R-134a & R-22, Multistage Industrial Compressors

Water Cooled Chillers - Gas, Steam or Oil Driven
Tonnage Range Model # Trade Name Basic Description
120 - 1377 tons YIA IsoFlow Absorption, Single Stage, Low-Pressure Steam or Hot Water
200 - 675 tons YPC ParaFlow Absorption, Two Stage, Direct Fired
300 - 675 tons YPC ParaFlow Absorption, Two Stage, High-Pressure Steam
350 - 1800 tons YB/YG Millenium R-134a, Gas Engine Driven Centrifugal Chiller
700 - 2165 tons YST MaxE R-134a, Steam Turbine Driven Centrifugal Chiller

Custom Chiller / HVAC Packages

Custom chiller/HVAC packages are available on special order from the US Air Conditioning manufacturing facility in Indianapolis, Indiana. They can adapt standard product for specific customer needs ranging from full modular plant systems to a variety of adaptations that make for easy installation and integration into existing facilities.

Customized Chiller Packages Brochure



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