Zingfa QR3-90 hermetic compressor
4 HP three-phase piston compressor for R448A, R449A, R452A and R404A. Also listed as Xingfa QR3-90 and Ankang QR3-90.
- Rated at +7.2 °C evaporating, +54.5 °C condensing
- 11,300 W
- Three-phase
- 4 HP
- POE, 2,000 mL
- R404A
Specifications from the datasheet
Some values that conflict within the manufacturer datasheet are not listed here. Ask TURA for confirmed figures.
General
- Rated refrigerant
- R404A
- Nominal power
- 4 HP
- Displacement
- 90.2 cc
- Oil
- POE, 32 cSt
- Oil charge
- 2,000 mL
- Rated speed
- 2,900 rpm
- IP class
- IP21
Rated performance
- Cooling capacity
- 11,300 W / 38,530 BTU/h
- Input power
- 4,600 W
- Rated run current
- 7.3 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
- 3.6 Ω
- Locked rotor current
- 55 A
- Insulation class
- F
Connections
- Suction
- 1 3/4"-12 UNF
- Discharge
- 1 1/4"-12 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 | 4,786 | 4,439 | No value published | No value published | No value published | No value published | No value published |
| −15 °C | 6,689 | 6,277 | 5,455 | 4,645 | No value published | No value published | No value published |
| −10 °C | 9,004 | 8,506 | 7,510 | 6,521 | 6,033 | 5,078 | No value published |
| −5 °C | 11,784 | 11,181 | 9,970 | 8,763 | 8,164 | 6,987 | 5,852 |
| 0 °C | 15,088 | 14,359 | 12,895 | 11,431 | 10,703 | 9,266 | 7,874 |
| 5 °C | 18,971 | 18,099 | 16,346 | 14,590 | 13,715 | 11,985 | 10,305 |
| 10 °C | 23,497 | 22,465 | 20,390 | 18,310 | 17,274 | 15,223 | 13,233 |
| Evaporating / Condensing | 30 °C | 35 °C | 40 °C | 45 °C | 50 °C | 55 °C | 60 °C |
|---|---|---|---|---|---|---|---|
| −20 °C | 2,162 | 2,157 | No value published | No value published | No value published | No value published | No value published |
| −15 °C | 2,521 | 2,541 | 2,558 | 2,537 | No value published | No value published | No value published |
| −10 °C | 2,849 | 2,892 | 2,959 | 2,996 | 3,001 | 2,978 | No value published |
| −5 °C | 3,151 | 3,214 | 3,327 | 3,416 | 3,449 | 3,489 | 3,486 |
| 0 °C | 3,434 | 3,515 | 3,669 | 3,804 | 3,863 | 3,959 | 4,020 |
| 5 °C | 3,705 | 3,801 | 3,990 | 4,167 | 4,249 | 4,396 | 4,515 |
| 10 °C | 3,970 | 4,079 | 4,296 | 4,510 | 4,613 | 4,806 | 4,977 |