Zingfa QR3-44 hermetic compressor
2 HP three-phase piston compressor for R448A, R449A, R452A and R404A. Also listed as Xingfa QR3-44 and Ankang QR3-44.
- Rated at +7.2 °C evaporating, +54.5 °C condensing
- 5,977 W
- Three-phase
- 2 HP
- POE, 1,500 mL
- R404A
Specifications from the datasheet
General
- Rated refrigerant
- R404A
- Nominal power
- 2 HP
- Displacement
- 44 cc
- Oil
- POE, 32 cSt
- Oil charge
- 1,500 mL
- Rated speed
- 2,900 rpm
- IP class
- IP21
Rated performance
- Cooling capacity
- 5,977 W / 20,380 BTU/h
- Input power
- 2,300 W
- COP
- 2.6 W/W
- Rated run current
- 3.8 A
- Sound power
- ≤ 62 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
- 6.8 Ω
- Locked rotor current
- 30 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 | 2,679 | 2,514 | No value published | No value published | No value published | No value published | No value published |
| −15 °C | 3,667 | 3,480 | 3,092 | 2,687 | No value published | No value published | No value published |
| −10 °C | 4,829 | 4,610 | 4,159 | 3,690 | 3,449 | 2,953 | No value published |
| −5 °C | 6,181 | 5,920 | 5,387 | 4,836 | 4,555 | 3,979 | 3,387 |
| 0 °C | 7,737 | 7,426 | 6,793 | 6,143 | 5,812 | 5,140 | 4,457 |
| 5 °C | 9,515 | 9,146 | 8,395 | 7,629 | 7,241 | 6,456 | 5,666 |
| 10 °C | 11,532 | 11,096 | 10,213 | 9,316 | 8,863 | 7,952 | 7,045 |
| Evaporating / Condensing | 30 °C | 35 °C | 40 °C | 45 °C | 50 °C | 55 °C | 60 °C |
|---|---|---|---|---|---|---|---|
| −20 °C | 1,300 | 1,307 | No value published | No value published | No value published | No value published | No value published |
| −15 °C | 1,477 | 1,500 | 1,530 | 1,539 | No value published | No value published | No value published |
| −10 °C | 1,630 | 1,667 | 1,729 | 1,771 | 1,784 | 1,794 | No value published |
| −5 °C | 1,763 | 1,813 | 1,903 | 1,975 | 2,005 | 2,050 | 2,074 |
| 0 °C | 1,880 | 1,942 | 2,056 | 2,156 | 2,201 | 2,277 | 2,336 |
| 5 °C | 1,985 | 2,056 | 2,193 | 2,318 | 2,375 | 2,480 | 2,570 |
| 10 °C | 2,080 | 2,161 | 2,316 | 2,463 | 2,533 | 2,663 | 2,781 |