Samsung AM KN4DCH Series Installation Manual page 12

Installation Procedure
CAUTION
Step 8 Performing the gas leak test
Insulator
12
English
Step 9 Insulating the refrigerant
pipes
1
No gap
NOTE
2
3
4
Indoor unit
Gas side
Liquid side
NBR
Insulation cover pipe
Insulation pipe
Be sure to overlap
the insulation.