A/C & Heat Pump System "Pump Down" ASHRAE Numbers for Blends Calculating Superheat/Subcooling Compressor Hard Start Kits Driers for R410A Usage E.P.A. Regulations Regarding CFC Electrical Checks on Hermetic Compressors Handling of P.O.E. Oil ID Equipment for Parts Increased Indoor Coil Corrosion Failures R410A Tool List Refrigerant Fractionation Refrigerant Leak Detection Service Diagnosis Chart Servicing A/C & Heat Pump & Refrig. Units "Opened to Atmosphere" Shorter Life of Hoses Special Fittings for Automotive Use System Flushing and Evacuation Tools to Do the Job

Blower "V" Belt Tension Adjustment Specs for Replacement Fan Blades

"SECRETS" - Smart Valve SV9500, 9501, 9502 Accessory Terminal Features on our Furnaces Servicing and Troubleshooting Contactors Servicing/Troubleshooting Intermittent (spark-to-pilot) Ignition Systems Smart Valve #SV9500 Sequence of Operation Smart Valve Description Smart Valve SV9501 Sequence of Operation Taco Zone Valves-Amp Draw

Capacitor Sizing Changes on Color Coded "Roomex" and "BX" Wire

Checking Electronic Ignitors Flood Damaged Equipment Gas Leaks at Main Gas Valves New Water Heater Relief Valves Discharging Newly Installed Nozzles Clogging? Noisy Oil Burner Combustion Oil Equipment Tripping Out On Safety? Service on "CMPB U" Ducane Furnaces Transformer Tester Limits Water Heater Condensation

Cold air from A/C ducting during heating season Comfortable Humidity Levels Excessive Humidity? Why do we need to add humidity?

EPA Regulations on CFC Liquid or Vapor Indicators on Recovery Cylinder Handles No More CFCs What is a Micron?

Early Heat Exchanger Failures