TECHNICAL SUPPORT
Certified Technical Support
Our certified technical experts are fully trained, NATE-certified and stand ready to assist HVAC contractors and share their troubleshooting knowledge in the classroom, on the phone, and at a jobsite.
REFRIGERATION INFORMATION
SPLIT TROUBLESHOOTING AC GUIDE
AC / REFRIGERATION: MEASURING LIQUID SUBCOOLING LEVEL
REFRIGERATION TROUBLESHOOTING
FURNACE TROUBLESHOOTING GUIDE
AIR FLOW IN CFM GAS FIRED FURNACE
FURNACE FAULT DIAGNOSTICS
GAS PIPING INFORMATION
METER CLOCKING METHOD
FURNACE QUICK CHECK MOTOR WILL NOT RUN
HYDRONIC FORMULAS
SQUARE FEET OF RADIATION PER SECTION
REPLACEMENT BOILER SIZING CHART
FORMULAS
AIRFLOW VERSUS TEMPERATURE RISE
DRILL SIZES & DECIMAL EQUIVALENTS
DUCT SIZING GUIDE
CONVERSIONS
TERMINOLOGY
ALTERNATE WAYS TO SIZE ERVS / HRVS
EXHAUST FANS
GEOTHERMAL VERIFICATION SHEET
TECH TIPS
