LG LS090HEV1 Installation Manual

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REFRIGERANT PIPING CONNECTIONS
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 refrig-
erant piping. Tables 25 to 28 list pipe length limits that must be followed in the design of a Single Zone Wall Mount refrigerant pipe system.
Refer to Figure 40 for maximum length and elevation of piping.
Table 25: 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
Shortest total equivalent piping length 6.6 6.6 9.8 9.8
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 26: Single Zone Standard Refrigerant Piping System Limitations
Figure 40: 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
Shortest total equivalent piping length 9.8 9.8
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
Refrigerant Piping System Limitations

LG LS090HEV1 Specifications

General

Brand	LG
Model	LS090HEV1
Category	Air Conditioner
Language	English