LG MULTI V Service Manual page 14

Nomenclature
3.3 HR Unit
PRHR 04 3 A
※ These are model names of the basic function.
Serial Number
No. of Connected branches
02 : For 2 branches
03 : For 3 branches
04 : For 4 branches
06 : For 6 branches
08 : For 8 branches
Indicates that this is
HR Unit using the R410A
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System
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