LG LS091HSV3 Engineering Manual

64 | REFRIGERANT DESIGN
Single Zone High Efciency and Standard Wall Mount Engineering Manual
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REFRIGERANT PIPING DESIGN
Design Guideline Summary
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 refriger-
ant piping. Tables 35-37 list pipe length limits that must be followed in the design of a Single Zone Wall Mount refrigerant pipe system. Refer
to Figure 29 for maximum length and elevation of piping
Table 35: Single Zone High Efciency Refrigerant Piping System Limitations.
Pipe Length
(ELF = Equivalent Length of pipe
in Feet)
Longest total equivalent piping length
LS091HSV3 LS121HSV3 LS181HSV3 LS240HSV3
65.6 65.6 98.4 98.4
Distance between fittings and indoor units or
outdoor units
≥20 inches ≥20 inches ≥20 inches ≥20 inches
Elevation
(All Elevation Limitations are
Measured in Actual Feet)
If outdoor unit is above indoor unit
32.8 32.8 49.2 49.2
If outdoor unit is below indoor unit
32.8 32.8 49.2 49.2
Additional Refrigerant Needed (oz/ft)
0.22 0.22 0.38 0.38
Table 36: Single Zone Standard Refrigerant Piping System Limitations.
Table 37: Single Zone Extended Pipe Refrigerant Piping System Limitations.
Figure 29: Single Zone System Layout
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
Max Length = A
Max Elevation = B
Unit = Feet
Pipe Length
(ELF = Equivalent Length of pipe
in Feet)
Longest total equivalent piping length
LS307HV3 LS360HV3
98.4 98.4
Distance between fittings and indoor units or
outdoor units
≥20 inches ≥20 inches
Elevation
(All Elevation Limitations are
Measured in Actual Feet)
If outdoor unit is above indoor unit
49.2 49.2
If outdoor unit is below indoor unit
49.2 49.2
Additional Refrigerant Needed (oz/ft)
0.38 0.38
Pipe Length
(ELF = Equivalent Length of pipe
in Feet)
Longest total equivalent piping length
LS240HLV LS300HLV LS360HLV
164.0 164.0 164.0
Distance between fittings and indoor units 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
98.4 98.4 98.4
If outdoor unit is below indoor unit
98.4 98.4 98.4
Additional Refrigerant Needed (oz/ft)
0.38 0.38 0.38

LG LS091HSV3 Specifications

General

Brand	LG
Model	LS091HSV3
Category	Air Conditioner
Language	English