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Refrigerant Piping Size Calculator

YORK Chillers & Condensing Units · R-454B / R-513A · V2.1
Unit ConfigurationRequired
— MBH
— MBH
Line GeometryRequired

Suction Line

Auto-calculated Total Linear (ft) = Horz + Vert

Liquid Line

Auto-calculated Total Linear (ft) = Horz + Vert + Addl
Fill in the fields above, then click Run Selection to size the piping.
Calculated Output · Per Circuit
▶
No Calculation Yet
Enter your line geometry to the left, then click Run Selection to size the suction and liquid piping for each circuit.
Circuit 1 — tons

Suction Line

Horizontal Pipe Size—
Vertical Pipe Size—
Elbow Size—
Double Riser (if needed)—
Delta T (°F)—
Pressure Drop (PSI)—
Total Equivalent (ft)—
Max Allowable (ft)—

Liquid Line

Horizontal Pipe Size—
Vertical Pipe Size—
Elbow Size—
  
Delta T (°F)—
Pressure Drop (PSI)—
Total Equivalent (ft)—
Max Allowable (ft)—
Circuit 2 — tons

Suction Line

Horizontal Pipe Size—
Vertical Pipe Size—
Elbow Size—
Double Riser (if needed)—
Delta T (°F)—
Pressure Drop (PSI)—
Total Equivalent (ft)—
Max Allowable (ft)—

Liquid Line

Horizontal Pipe Size—
Vertical Pipe Size—
Elbow Size—
  
Delta T (°F)—
Pressure Drop (PSI)—
Total Equivalent (ft)—
Max Allowable (ft)—
↗ Reference Document · QCC3 QCC3 Engineering Guide  ·  Form QCC3-EG1 (124) docs.johnsoncontrols.com ↗ Reference Document · QTC3 QTC3 Engineering Guide  ·  Form QTC3-EG6 (1123) docs.johnsoncontrols.com

Instructions

  1. Select the Unit Model. Refrigerant is determined automatically.
  2. Enter Unit Rated Full Capacity, Tons Per Circuit, and Tons Per Compressor.
  3. Enter Horizontal and Vertical Lengths for both the Suction and Liquid Line.
  4. Enter the number of risers (suction) and elbows required for each line.
  5. If applicable, enter equivalent feet for additional liquid-line components such as TXV, Solenoid Valve, or Filter Drier.
Notes: See the Total Equivalent Example tab for determining Total Equivalent Feet for each line. Maximum single riser suction-line rise of 40 ft is recommended. Reference: 2022 ASHRAE Handbook—Refrigeration.

Example Suction Line Arrangement

Figure 46 · Reference
Example suction line arrangement showing DX coil to ACCU with 3' horizontal run, 12' vertical riser, inverted trap with three 90° long-radius elbows, and a 10' horizontal run to the ACCU. Inset detail shows two short-radius 45° street elbows and a 90° short-radius elbow.
Figure 46 — Example Suction Line Arrangement

Unit Physical Data

Standard Efficiency · 080–160 Tons
RefrigerantR-410A Standard efficiency units
080CZE085CZE090CZE100CYE 110CYE130CZE145CZE160CZE
General unit data
Length 116.1116.1116.1142.7142.7142.7187.7187.7
Width 88.088.088.088.088.088.088.088.0
Height 94.294.294.294.294.294.294.294.2
Refrigerant
Number of refrigerant circuits 22222222
Refrigerant charge circuit 1 (lb) 54565678568181108
Refrigerant charge circuit 2 (lb) 4949517398767696
Oil charge, circuit 1/circuit 2, gal 2.6 / 2.63.3 / 2.63.3 / 2.82.8 / 2.83.3 / 3.33.3 / 3.35.0 / 2.85.0 / 3.3
Unit weights
Shipping weight (lb) 3,7133,9894,1854,9115,1465,2216,4736,628
Compressors, scroll type
Compressors per circuit 3/33/33/22/23/22/23/23/2
Compressors per unit 66545455
Nominal tons per compressor
Circuit 1 13151515/3215323232
Circuit 2 131315/3215/32323215/3232
Condenser
Total face area ft² 106.9106.9106.9160.3160.3160.3213.8213.8
Number of rows 33333333
Fins per in. 1717171717171717
Condenser fans, low sound
Number of fans, circuit 1/circuit 2 2/22/22/23/32/43/34/44/4
Fan HP 22222222
Fan rpm 1,1601,1601,1601,1601,1601,1601,1601,160
Total chiller, cfm 62,40062,40062,40093,60093,60093,600124,800124,800
RefrigerantR-454B Standard efficiency units
080CZJ085CZJ090CZJ100CYJ 110CYJ130CZJ145CZJ160CZJ
General unit data
Length 116.1116.1116.1142.7142.7142.7187.7187.7
Width 88.088.088.088.088.088.088.088.0
Height 94.294.294.294.294.294.294.294.2
Refrigerant
Number of refrigerant circuits 22222222
Refrigerant charge circuit 1 (lb) 54565678568181108
Refrigerant charge circuit 2 (lb) 4949517398767696
Oil charge, circuit 1/circuit 2, gal 2.6 / 2.63.3 / 2.63.3 / 2.82.8 / 2.83.3 / 3.33.3 / 3.35.0 / 2.85.0 / 3.3
Unit weights
Shipping weight (lb) 3,9413,9413,9414,7474,8384,9296,1726,263
Compressors, scroll type
Compressors per circuit 3/33/33/22/23/22/23/23/2
Compressors per unit 66545455
Nominal tons per compressor
Circuit 1 13151515/3215323232
Circuit 2 131315/3215/32323215/3232
Condenser
Total face area ft² 106.9106.9106.9160.3160.3160.3213.8213.8
Number of rows 33333333
Fins per in. 1717171717171717
Condenser fans, low sound
Number of fans, circuit 1/circuit 2 2/22/22/23/32/43/34/44/4
Fan HP 22222222
Fan rpm 1,1601,1601,1601,1601,1601,1601,1601,160
Total chiller, cfm 62,40062,40062,40093,60093,60093,600124,800124,800

Total Equivalent Feet — Example

REMOTE EVAPORATOR ⟶ CHILLER · WORKED CALCULATION
Equivalent Linear Feet
55 ft
4 + 13 + 12 + 4 + 4 + 10 + 4 + 4
Number of Risers
3
Number of Elbows
2
Total Equivalent @ 120 tons
128 ft
REMOTE EVAPORATOR CHILLER 4' RISER 1 12' 13' 4' RISER 2 13' 10' E1 ELBOW 1 4' E2 ELBOW 2 4' RISER 3 10' LEGEND Linear pipe run Riser (counted separately) Counted elbow

When To Count a Riser

There needs to be a riser for every vertical run that the liquid will be traveling up — and at least one riser for every 20 feet in a single vertical run.

When a Riser Is Not Needed

You don't need a riser when the suction line is going down from the evaporator.

Elbows in Risers

Elbows that are part of a riser (suction trap) are already included in the Riser Equivalent — do NOT add them to the "Number of Elbows" section.

Single Riser Limit

Maximum single riser suction-line rise of 40 ft is recommended. Beyond this, consider a double riser configuration.

Riser + Elbow Equivalent LengthCalculator
Single Riser Fittings (per riser)
Additional Elbows & Linear
Output

Total Equivalent Length

Riser + Elbow + Linear
—ft
Riser Length
— ft
Elbow Length
— ft
Linear
— ft

Fitting Equivalent Lookup

Nominal Pipe 90° LR 45° 90° Std
Source: 2022 ASHRAE Handbook — Refrigeration