Trane RT-PRC007-EN manual Performance Adjustment Factors, Table PD-1- Enthalpy of Saturated AIR

Page 18

Table PD-1— Enthalpy of Saturated AIR

Wet BulbTemperature

Btu Per Lb.

40

15.23

41

15.70

42

16.17

43

16.66

44

17.15

45

17.65

46

18.16

47

18.68

48

19.21

49

19.75

50

20.30

51

20.86

52

21.44

53

22.02

54

22.62

55

23.22

56

23.84

57

24.48

58

25.12

59

25.78

60

26.46

61

27.15

62

27.85

63

28.57

64

29.31

65

30.06

66

30.83

67

31.62

68

32.42

69

33.25

70

34.09

71

34.95

72

35.83

73

36.74

74

37.66

75

38.61

18

Performance

Adjustment

Factors

Figure PD-1 — Air Density Ratios

Altitude/Temperature Correction

Air Density

Ratio (Density

at New

Air Density)

Condition/Std.

Rooftop Leaving AirTemperature (degrees F)

Table PD-2 — Cooling Capacity Altitude Correction Factors

 

 

 

 

Altitude (Ft.)

 

 

 

 

 

Sea Level

1000

2000

3000

4000

5000

6000

7000

Cooling Capacity

 

 

 

 

 

 

 

 

Multiplier

1.00

0.99

0.99

0.98

0.97

0.96

0.95

0.94

KW Correction

 

 

 

 

 

 

 

 

Multiplier

 

 

 

 

 

 

 

 

(Compressors)

1.00

1.01

1.02

1.03

1.04

1.05

1.06

1.07

SHR Correction

 

 

 

 

 

 

 

 

Multiplier

1.00

.98

.95

.93

.91

.89

.87

.85

Maximum

 

 

 

 

 

 

 

 

Condenser

 

 

 

 

 

 

 

 

Ambient

115 F

114 F

113 F

112 F

111 F

110 F

109 F

108 F

Note:

SHR = Sensible Heat Ratio

Table PD-3 — Gas Heating Capacity Altitude Correction Factors

 

 

 

 

Altitude (Ft.)

 

 

 

 

Sea Level

2001

2501

3501

4501

5501

6501

 

To 2000

To 2500

To 3500

To 4500

To 5500

To 6500

To 7500

Capacity

 

 

 

 

 

 

 

Multiplier

1.00

.92

.88

.84

.80

.76

.72

Note:

Correction factors are per AGA Std 221.30 — 1964, Part VI, 6.12. Local codes may supersede.

RT-PRC007-EN

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Page 17 Page 19
Contents Packaged Rooftop Air Conditioners Introduction American Standard IncContents Features and Benefits Standard FeaturesOptional Features Simple Design with 70% Fewer Parts Proven DesignThroughTesting and ResearchTrane 3-DScroll Compressor LowTorque VariationMicro Controls Features BenefitsQuality and Reliability MicroSingle Point Power RigorousTestingEase of Installation FC Fans with Inlet GuideVanesEasy to Service ValueVariTrac Barometric Relief Dampers Application Recommendations Power Exhaust FanExhaust Air Options Altitude CorrectionsAcoustical Considerations Clearance RequirementsDuct Design Selection Procedure Supply Air FanNatural Gas Heating System Air Delivery ProcedureElectric Heating System Unit Electrical RequirementsModel Number Description General Data Table GD-1 General Data 27 1/2 30 TonsTable GD-2- General Data 35-40Ton Table GD-3- General Data 50Ton Performance Adjustment Factors Table PD-1- Enthalpy of Saturated AIRTable PD-3 Gas Heating Capacity Altitude Correction Factors Performance Data Table PD-4 27 1/2 Ton Gross Cooling Capacities MBhTable PD-5- 30Ton Gross Cooling Capacities Mbh Table PD-6 35Ton Gross Cooling Capacities Mbh Table PD-7 40Ton Gross Cooling Capacities MbhTable PD-8 50Ton Gross Cooling Capacities MBh Table PD-9 Electric Heat AirTemperature Rise Table PD-10 Available Electric Heat KW RangesTable PD-11 Natural Gas Heating Capacities Table PD-12 Supply Fan Performance 27½ 35Ton Static Pressure in. wg1Table PD-13 Supply Fan Performance 40 and 50Ton Table PD-14 Component Static Pressure Drops in.W.G.1 Heating System Filters2 NominalGas Heat Electric Heat3 ID Coil Table PD-15 Supply Air Fan Drive Selections 20 HPNominal Drive Table PD-16- Power Exhaust Fan Performance Controls VAV Units OnlyCV Units Only Auto Changeover Unoccupied ZoneTemperature Control Cooling and HeatingSupply AirTempering ConventionalThermostat InterfaceCoil Freeze Protection Frostat Occupied/Unoccupied SwitchingFan Failure Switch Night Setback SensorsElectrical Service Sizing Electrical DataSet 2. Rooftop units with Electric Heat Table ED-2 27½-50Ton Electrical Service Sizing Data1 Dimensional Data Figure DD-1 27 1/2 35Tons TC,TE,YC Low HeatDimensional Data Figure DD-3 40-50Tons TC,TE,YC Low & High Heat Dimensional Field Installed SensorsConstant CV and VAV Integrated Comfort System SensorsTableW-3 ComponentWeights WeightsTableW-2 Point Loading AverageWeight1 TableW-4 Minimum Operating Clearances for Unit InstallationMechanical Specifications Unit Options Accessories LP Conversion Kit 20-60Ton Literature Order Number File Number PL-RT-TC/TE/YC-27½ 50-TONS-PRC0007-EN-10-2001

RT-PRC007-EN specifications

The Trane RT-PRC007-EN is a part of Trane’s highly regarded line of air-cooled chillers, designed to provide exceptional performance and efficiency for a variety of commercial applications. This model is known for its robust engineering and cutting-edge technologies, making it a favored choice among facility managers and HVAC professionals.

One of the key features of the RT-PRC007-EN is its energy efficiency. Its advanced compressor design, alongside innovative heat exchanger technology, allows it to achieve significant energy savings, meeting or exceeding standards set by the Department of Energy. This efficiency not only results in lower operational costs but also contributes to a smaller carbon footprint, making it an environmentally friendly choice.

The chiller is equipped with variable speed compressors which adjust their output in relation to the cooling demand. This feature ensures optimal performance at all times, reducing energy consumption during partial load operations. Additionally, the RT-PRC007-EN incorporates Trane's unique Adaptive Control technology. This intelligent control system continuously monitors system parameters and environmental conditions, optimizing performance in real-time to ensure reliable operation.

Another standout characteristic of the RT-PRC007-EN is its quiet operation. The inclusion of sound-dampening technology and strategically placed acoustic insulation allows this chiller to operate with minimal noise, making it suitable for installations in noise-sensitive environments like hospitals or schools.

Durability is another hallmark of the RT-PRC007-EN. Built with high-quality materials, it is designed to withstand harsh operating conditions. Its corrosion-resistant components ensure longevity and reduce the need for extensive maintenance, making it a reliable choice for operators.

Lastly, the RT-PRC007-EN comes with a variety of customization options, including different refrigerant types, control systems, and capacity configurations. This flexibility allows it to adapt to the specific needs of different applications and building designs.

In summary, the Trane RT-PRC007-EN represents a fusion of efficiency, reliability, and advanced technology, making it an excellent option for those seeking a cutting-edge air-cooled chiller for their commercial HVAC needs.
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