InstallationPregunta 47 de 110
Before releasing refrigerant charge into a newly installed line set, the system should be tested and then processed how?
a.Charged immediately without testing
b.Pressure tested for leaks, then evacuated to remove moisture and non-condensables
c.Filled with water
d.Left open to atmosphere
Explicación
Best practice is to pressure test the assembled line set for leaks, then pull a deep vacuum to remove moisture and non-condensable gases before charging. Moisture left inside can freeze at the metering device and form acids. Only after a proper evacuation should refrigerant be introduced.
Practica las 110 preguntas gratis — sin registro.
Preguntas relacionadas de este tema
- A furnace located in an attic generally requires what for code-compliant service?
- The condensate drain line from a cooling coil is often fitted with a trap to accomplish what?
- What is the recommended practice for supporting horizontal refrigerant and drain lines?
- A gas furnace flue must terminate where?
- When connecting line-voltage power to an air conditioner, the disconnect switch must be located where?
- What is the purpose of a filter drier installed in the liquid line?
Última revisión: · proceso editorial
Equipo Editorial de PrepPass · Verificado con California CSLB C-20 Warm-Air HVAC Trade Exam · Cómo revisamos