Refrigerant Piping Design - LG LS091HSV3 Engineering Manual

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 Efficiency Refrigerant Piping System Limitations.
Pipe Length
(ELF = Equivalent Length of pipe
in Feet)
Elevation
(All Elevation Limitations are
Measured in Actual Feet)
Additional Refrigerant Needed (oz/ft)
Table 36: Single Zone Standard Refrigerant Piping System Limitations.
Pipe Length
(ELF = Equivalent Length of pipe
in Feet)
Elevation
(All Elevation Limitations are
Measured in Actual Feet)
Additional Refrigerant Needed (oz/ft)
Table 37: Single Zone Extended Pipe Refrigerant Piping System Limitations.
Pipe Length
(ELF = Equivalent Length of pipe
in Feet)
Elevation
(All Elevation Limitations are
Measured in Actual Feet)
Additional Refrigerant Needed (oz/ft)
Figure 29: Single Zone System Layout
Max Length = A
Indoor unit
Max Elevation = B
A
B
Outdoor unit
64 | REFRIGERANT DESIGN
Longest total equivalent piping length
Distance between fittings and indoor units or
outdoor units
If outdoor unit is above indoor unit
If outdoor unit is below indoor unit
Longest total equivalent piping length
Distance between fittings and indoor units or
outdoor units
If outdoor unit is above indoor unit
If outdoor unit is below indoor unit
Longest total equivalent piping length
Distance between fittings and indoor units or
outdoor units
If outdoor unit is above indoor unit
If outdoor unit is below indoor unit
Unit = Feet
A
Indoor unit
Due to our policy of continuous product innovation, some specifications may change without notification.
©
LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG " is a registered trademark of LG Corp.
LS091HSV3
65.6
≥20 inches
32.8
32.8
0.22
LS307HV3
98.4
≥20 inches
49.2
49.2
0.38
LS240HLV
164.0
≥20 inches
98.4
98.4
0.38
Outdoor unit
B
LS121HSV3 LS181HSV3 LS240HSV3
65.6 98.4
≥20 inches ≥20 inches
32.8 49.2
32.8 49.2
0.22 0.38
LS360HV3
98.4
≥20 inches
49.2
49.2
0.38
LS300HLV LS360HLV
164.0
≥20 inches ≥20 inches
98.4
98.4
0.38
98.4
≥20 inches
49.2
49.2
0.38
164.0
98.4
98.4
0.38