Zingfa QR3-58 hermetic compressor
2.5 HP three-phase piston compressor for R448A, R449A, R452A and R404A. Also listed as Xingfa QR3-58 and Ankang QR3-58.
- Rated at +7.2 °C evaporating, +54.5 °C condensing
- 7,967 W
- Three-phase
- 2.5 HP
- POE, 1,500 mL
- R404A
Specifications from the datasheet
General
- Rated refrigerant
- R404A
- Nominal power
- 2.5 HP
- Displacement
- 58.2 cc
- Oil
- POE, 32 cSt
- Oil charge
- 1,500 mL
- Rated speed
- 2,900 rpm
- IP class
- IP21
Rated performance
- Cooling capacity
- 7,967 W / 27,170 BTU/h
- Input power
- 3,080 W
- COP
- 2.6 W/W
- Rated run current
- 5 A
- Sound power
- ≤ 65 dB(A)
- Evaporating temperature
- +7.2 °C
- Condensing temperature
- +54.5 °C
- Suction temperature
- +35 °C
- Liquid subcooling
- 8.3 K
- Ambient temperature
- +35 °C
Electrical
- Motor
- Three-phase
- Motor poles
- 2
- Power supply, 50 Hz
- 380-400 V 3~ 50 Hz
- Power supply, 60 Hz
- 460 V 3~ 60 Hz
- Winding resistance at 25 °C
- 4 Ω
- Locked rotor current
- 39 A
- Insulation class
- F
Connections
- Suction
- 1 1/4"-12 UNF
- Discharge
- 1"-14 UNF
- Process tube
- Ø7 ±0.2 (ID), Ø10 (OD)
Operating limits
- Tightness test pressure
- 2.2 MPa
- High side max running pressure
- 3.2 MPa
- Low side max running pressure
- 2 MPa
- Discharge temperature limit
- ≤ 125 °C
- Protection
- Internal motor protector, internal pressure relief
Performance at 50 Hz by duty point
R404A values from the manufacturer datasheet, with 35 °C return gas and 8.3 K subcooling. Rated values above can differ from these tables.
| Evaporating / Condensing | 30 °C | 35 °C | 40 °C | 45 °C | 50 °C | 55 °C | 60 °C |
|---|---|---|---|---|---|---|---|
| −20 °C | 3,680 | 3,455 | No value published | No value published | No value published | No value published | No value published |
| −15 °C | 4,910 | 4,663 | 4,155 | 3,632 | No value published | No value published | No value published |
| −10 °C | 6,339 | 6,056 | 5,475 | 4,876 | 4,572 | 3,956 | No value published |
| −5 °C | 8,002 | 7,671 | 6,991 | 6,291 | 5,935 | 5,217 | 4,498 |
| 0 °C | 9,935 | 9,544 | 8,741 | 7,916 | 7,497 | 6,652 | 5,809 |
| 5 °C | 12,176 | 11,713 | 10,764 | 9,791 | 9,298 | 8,305 | 7,318 |
| 10 °C | 14,764 | 14,218 | 13,103 | 11,963 | 11,386 | 10,226 | 9,081 |
| Evaporating / Condensing | 30 °C | 35 °C | 40 °C | 45 °C | 50 °C | 55 °C | 60 °C |
|---|---|---|---|---|---|---|---|
| −20 °C | 1,670 | 1,676 | No value published | No value published | No value published | No value published | No value published |
| −15 °C | 1,893 | 1,916 | 1,945 | 1,952 | No value published | No value published | No value published |
| −10 °C | 2,100 | 2,138 | 2,200 | 2,243 | 2,257 | 2,271 | No value published |
| −5 °C | 2,295 | 2,349 | 2,441 | 2,516 | 2,548 | 2,599 | 2,634 |
| 0 °C | 2,486 | 2,552 | 2,672 | 2,778 | 2,826 | 2,911 | 2,981 |
| 5 °C | 2,678 | 2,755 | 2,901 | 3,035 | 3,097 | 3,213 | 3,316 |
| 10 °C | 2,877 | 2,965 | 3,133 | 3,292 | 3,368 | 3,512 | 3,645 |