Zingfa QR3-134 hermetic compressor
7 HP three-phase piston compressor for R448A, R449A, R452A and R404A. Also listed as Xingfa QR3-134 and Ankang QR3-134.
- Rated at +7.2 °C evaporating, +54.5 °C condensing
- 18,230 W
- Three-phase
- 7 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
- 7 HP
- Displacement
- 134.8 cc
- Oil
- POE, 32 cSt
- Oil charge
- 2,000 mL
- Rated speed
- 2,900 rpm
- IP class
- IP21
Rated performance
- Cooling capacity
- 18,230 W / 62,160 BTU/h
- Input power
- 7,400 W
- Rated run current
- 11.7 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
- 2 Ω
- Locked rotor current
- 70 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 | 8,242 | 7,806 | No value published | No value published | No value published | No value published | No value published |
| −15 °C | 10,923 | 10,416 | 9,359 | 8,257 | No value published | No value published | No value published |
| −10 °C | 14,138 | 13,534 | 12,270 | 10,950 | 10,274 | 8,905 | No value published |
| −5 °C | 17,968 | 17,239 | 15,716 | 14,123 | 13,305 | 11,645 | 9,976 |
| 0 °C | 22,494 | 21,615 | 19,782 | 17,865 | 16,881 | 14,880 | 12,865 |
| 5 °C | 27,801 | 26,748 | 24,557 | 22,269 | 21,096 | 18,712 | 16,312 |
| 10 °C | 33,978 | 32,729 | 30,138 | 27,440 | 26,059 | 23,255 | 20,443 |
| Evaporating / Condensing | 30 °C | 35 °C | 40 °C | 45 °C | 50 °C | 55 °C | 60 °C |
|---|---|---|---|---|---|---|---|
| −20 °C | 3,454 | 3,481 | No value published | No value published | No value published | No value published | No value published |
| −15 °C | 3,984 | 4,036 | 4,110 | 4,140 | No value published | No value published | No value published |
| −10 °C | 4,515 | 4,594 | 4,722 | 4,806 | 4,830 | 4,843 | No value published |
| −5 °C | 5,046 | 5,154 | 5,339 | 5,479 | 5,532 | 5,600 | 5,617 |
| 0 °C | 5,576 | 5,714 | 5,959 | 6,159 | 6,241 | 6,367 | 6,442 |
| 5 °C | 6,103 | 6,273 | 6,582 | 6,844 | 6,956 | 7,144 | 7,280 |
| 10 °C | 6,626 | 6,830 | 7,204 | 7,532 | 7,677 | 7,930 | 8,129 |