Heatcraft Refrigeration Products 25000102 operation manual Pressure Loss of Liquid Refrigerants

Page 10

Installation and Operations Manual

Table 2. Pressure Loss of Liquid Refrigerants

(In Liquid Line Risers - Expressed in Pressure Drop, PSIG, and Subcooling Loss, °F)

Liquid Line Rise in Feet

Refrigerant

10’

 

15’

 

20’

 

25’

 

30’

 

40’

50’

75’

100’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PSIG

 

°F

PSIG

 

°F

PSIG

 

°F

PSIG

 

°F

PSIG

 

°F

PSIG

°F

PSIG

°F

PSIG

°F

PSIG

°F

 

 

 

 

 

 

R-12

5.4

 

2.8

8.1

 

4.2

10.7

 

5.4

13.4

 

6.9

16.1

 

8.3

21.5

11.3

26.9

14.3

40.3

22.4

53.7

31.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R-22

4.8

 

1.6

7.3

 

2.3

9.7

 

3.1

12.1

 

3.8

14.5

 

4.7

19.4

6.2

24.2

8.0

36.3

12.1

48.4

16.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R-502

4.9

 

1.5

7.3

 

2.2

9.7

 

3.0

12.1

 

3.7

14.6

 

4.5

19.5

6.0

24.3

7.6

36.4

11.5

48.6

14.8

R-134A

4.9

 

2.0

7.4

 

2.9

9.8

 

4.1

12.3

 

5.2

14.7

 

6.3

19.7

8.8

24.6

11.0

36.8

17.0

49.1

23.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R-404A/R-507

4.1

 

1.1

6.1

 

1.6

8.2

 

2.1

10.2

 

2.7

12.2

 

3.3

16.3

4.1

20.4

5.6

30.6

8.3

40.8

11.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Based on 110°F liquid temperature at bottom of riser

Table 3. Equivalent Feet of Pipe

(Due to Value and Fitting Friction)

Copper Tube

1/2

5/8

7/8

1-1/8

1-3/8

1-5/8

2-1/8

2-5/8

3-1/8

3-5/8

4-1/8

5-1/8

6-1/8

OD, Type “L”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Globe Value (Open)

14

16

22

28

36

42

57

69

83

99

118

138

168

Angle Value (Open)

7

9

12

15

18

21

28

34

42

49

57

70

83

 

 

 

 

 

 

 

 

 

 

 

 

 

 

90° Turn Through Tee

3

4

5

6

8

9

12

14

17

20

22

28

34

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tee - Straight Through

.75

1

1.5

2

2.5

3

3.5

4

5

6

7

9

11

or Sweep Below

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

90° Elbow or Reducing

1

2

2

3

4

4

5

7

8

10

12

14

16

Tee (Straight Through)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

Part # 25000102

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Contents Parallel Compressor Systems Table of Contents Unit Designation IntroductionInspection Model DefinitionLocation Of Equipment Indoor Clearances System WarrantyRigging Floor & Foundation RequirementsRoof Mounting Location of Equipment OutdoorGround Mounting Unit Vibration IsolationDecorative Fences Unit AccessVertical Clearance Units in PitsRefrigerant Piping Ventilation Requirements Indoor UnitsElectrical Suction P-TrapsRefrigerant Line Insulation Refrigerant Line SupportTable of Values for L Expansion LoopsRef. Line Amount of Expansion Liquid Line Rise in Feet Refrigerant 10’ Pressure Loss of Liquid RefrigerantsEquivalent Feet of Pipe 20’ 25’ 30’ 40’ 50’ 75’ 100’Suction Line at Suction Temperature Weight of Refrigerants in Copper Lines During OperationLine 40F 20F Recommended Line Sizes for R-404A/R-507 Lengths Liquid Line SizeExpansion Valve 100’ 150’ 200’ 25’Suction Line Size Recommended Line Sizes for R-22Capacity 40˚F 20˚F 10˚F Liquid Line Size Suction Temperature 10˚F12 & R-134A 502 507 & R-404A Recommended Remote Condenser Line SizesNet TotalEvacuation Leak Checking, Evacuation and Start-upStart-up Electric Defrost Refrigerant DistributionOff-Cycle Priority I Hot Gas DefrostSystem Superheat Electronic Control SystemSystem Balancing Evaporator SuperheatTypical Voltage Ranges CompressorsCopeland Compressors 4D/6D Solid State Modules Unloader FactorsApproved Copeland Lubricants Oil Safety SwitchOil Charges Carlyle CompressorsPart Load Performance Multipliers Phase Voltage MonitorRequired Differential Pressure for Unloader Operation Sight Glass & Moisture Indicator Sight Glass Safety Relief DevicesHenry Relief Valve Capacity Rating Discharge Piping TableLiquid Level Switch Auto Reset ModelsManual Reset Models Level Switch TableOil Control Module ReplacementOil Separators Temprite Models Temprite Valve AdjustmentOil Level Regulators Liquid Filter-Driers & Suction Filters Troubleshooting Oil SystemAC&R Model Regulators Sporlan Valve CoSporlan Valve Company CompressorMotorBurnoutCleanupProcedureSuction Filter Replaceable Suction FilterSuperior Valve Company Type DF for cleanupType AFD for cleanup Type F FilterHot Gas Bypass Regulator Adjustment Recommended Valve SettingsField Adjustment Liquid Drain Control MethodControl Settings for R-22 Control SettingsControl Settings for R-404A/R-507 Low Pressure Switch Setting for RmccMonthly General Maintenance ScheduleWeekly QuarterlyDoes Not Run Symptom Cause Remedy CompressorTemperature Unit ShortHigh Suction Symptom Cause Remedy LowSwitch Open Low SuctionService Record System Reference Data
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