What superheat means
Superheat is how many degrees the refrigerant vapor leaving the evaporator is above its boiling point at that pressure. It shows whether the coil is being fed the right amount of refrigerant.
Where it matters on a HVAC job
Techs read superheat to set charge on systems with a fixed metering device and to diagnose airflow and charge problems. Low superheat can flood the compressor; high superheat can starve the coil. Record the reading on the work order so the next visit has a baseline.
What it costs
The aC repair cost guide has the typical job at $400 and the usual range at $210 to $640. The guide shows its sources and what moves the price. The refrigeration btu calculator prices a job line by line.
Work it out
- Free calculator: Refrigeration BTU calculator
- Cost guide: AC repair cost
- Free template: Work order template
- Licensing: HVAC license rules by state
- Tools, templates and guides: Free HVAC resources