RefrigerationCâu 58 / 110
A technician measures a suction pressure whose saturation temperature is 40 F and a suction line temperature of 52 F. What is the superheat?
a.4 degrees
b.8 degrees
c.12 degrees
d.20 degrees
Giải thích
Superheat equals the suction line temperature minus the saturation temperature: 52 F minus 40 F equals 12 degrees. This value helps confirm proper evaporator feeding and charge. Very low superheat risks liquid floodback, while very high superheat suggests underfeeding.
Luyện miễn phí toàn bộ 110 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- The condenser in an air-conditioning system performs which function?
- A thermostatic expansion valve (TXV) controls refrigerant flow into the evaporator to maintain what?
- Superheat is defined as the temperature of the refrigerant vapor above what?
- Subcooling is measured at which point in the system?
- On a system with a condensing saturation temperature of 105 F and a liquid line temperature of 95 F, what is the subcooling?
- On a fixed-orifice (piston) system, which method is generally used to check the charge?
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với California CSLB C-20 Warm-Air HVAC Trade Exam · Quy trình kiểm tra