LG LS090HEV1 Engineering Manual

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58 | REFRIGERANT DESIGN
Single Zone Mega Wall Mounted Engineering Manual
REFRIGERANT PIPING DESIGN
Design Guideline Summary/Selecting Field-Supplied Copper Tubing
Table 12: Single-Zone Mega Wall Mount Refrigerant Piping System Limitations.
Pipe Length
(ELF = Equivalent Length of
pipe in Feet)
Longest total equivalent piping length
LS090HEV1/
LS120HEV1
LS180HEV1/
LS240HEV1
LSU090HXV/
LSU120HXV
49.2 feet 65.6 feet 49.2 feet
Shortest total equivalent piping length
9.8 feet 9.8 feet 6.6 feet
Piping Length (no additional refrigerant)
24.6 feet 24.6 feet 24.6 feet
Distance between fittings and indoor or
outdoor units
≥20 inches ≥20 inches ≥20 inches
Elevation
(All Elevation Limitations are
Measured in Actual Feet)
If outdoor unit is above indoor unit
22.9 feet 32.8 feet 22.9 feet
If outdoor unit is below indoor unit
22.9 feet 32.8 feet 22.9 feet
Additional Refrigerant Needed (oz/ft)
0.22 0.33 0.22
Figure 30: Mega System Layout.
Max Length = A
Max Elevation = B
Unit = Feet
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
Device Connection Limitations
Single-zone systems consist of one outdoor unit and one indoor
unit. One of the most critical elements of a single zone system is
the refrigerant piping. Table 12 lists pipe length limits that must be
followed in the design of a Single Zone Art Cool Premier refrigerant
pipe system. Refer to Figure 30 for maximum length and elevation of
piping.
Pipe
Length
1
Fluid Temperature °F
35° 40° 45° 50° 55° 60° 65° 70° 75° 80° 85° 90° 95° 100° 105° 110° 115° 120° 125° 130°
10
0.04 0.04 0.05 0.06 0.06 0.07 0.08 0.08 0.09 0.09 0.10 0.10 0.11 0.11 0.11 0.12 0.13 0.14 0.15 0.15
20
0.08 0.08 0.10 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.22 0.23 0.26 0.28 0.29 0.30
30
0.12 0.12 0.15 0.18 0.20 0.21 0.23 0.24 0.26 0.27 0.29 0.30 0.32 0.33 0.32 0.35 0.39 0.42 0.44 0.45
40
0.16 0.16 0.20 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.40 0.42 0.44 0.43 0.46 0.52 0.56 0.58 0.60
50
0.20 0.20 0.25 0.30 0.33 0.35 0.38 0.40 0.43 0.45 0.48 0.50 0.53 0.55 0.54 0.58 0.65 0.70 0.73 0.75
60
0.24 0.24 0.30 0.36 0.39 0.42 0.45 0.48 0.51 0.54 0.57 0.60 0.63 0.66 0.65 0.69 0.78 0.84 0.87 0.90
1
Pipe length baseline temperature = 0°F. "Expansion of Carbon, Copper and Stainless Steel Pipe," The Engineers' Toolbox, www.engineeringtoolbox.com.
Table 13: Linear Thermal Expansion of Copper Tubing in Inches

LG LS090HEV1 Specifications

General

Brand	LG
Model	LS090HEV1
Category	Air Conditioner
Language	English