Piping Limitations - LG MULTI V 5 Engineering Manual

PIPING LIMITATIONS

For Systems Designed for Heat Pump Operation
Following pages present Multi V 5 piping limitations and are for illustrative purposes only. Designers MUST use LATS when designing LG VRF systems.
Figure 25: Typical Heat Pump System Building Layout with Piping Limitations.
Max. Total Equivalent Piping Length: 3,280'
Table 20: Piping Limitations for Heat Pump Operation (See next page).
Total pipe length
Length
Elevation1
Elevation2
height1
Distance between Outdoor Unit to Outdoor Unit
Distance between two Y-branches / Headers
Assume equivalent pipe length of Y-branch is 1.6 feet, and equivalent pipe length of header is 3.3 feet.
1
88 | LIMITS / PLACEMENT
Longest actual pipe length
Longest pipe length after first branch
©
16.4 feet
Equivalent pipe length
1