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10 Installation Instruction 
10.1 Select The Best Location 
10.1.1 Indoor Unit 
•  Do not install the unit in excessive oil fume area such as kitchen, workshop and etc. 
•  There should not be any heat source or steam near the unit. 
•  There should not be any obstacles blocking the air circulation. 
•  A place where air circulation in the room is good. 
•  A place where drainage can be easily done. 
•  A place where noise prevention is taken into consideration. 
•  Do not install the unit near the door way. 
•  Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles. 
•  Recommended installation height for indoor unit shall be at least 2.5m. 
10.1.2 Outdoor Unit 
•  If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the 
condenser is not obstructed. 
•  There should not be any animal or plant which could be affected by hot air discharged. 
•  Keep the spaces indicated by arrows from wall, ceiling, fence or other obstacles. 
•  Do not place any obstacles which may cause a short circuit of the discharged air. 
•  If piping length is over the [piping length for additional gas], additional refrigerant should be added as shown in 
the table: 
Example: For S9*** 
If the unit is installed at 10 m distance, the quantity of additional refrigerant should be 38 g…. (10-7.5) m x 15 g/m = 
38 g. 
10.1.3  Indoor/Outdoor Unit Installation Diagram 
 
Piping size Model Horse 
Power 
(HP) 
Gas Liquid 
Std. Length 
(m) 
Max Elevation 
(m) 
Min Piping 
Length (m) 
Max Piping 
Length (m) 
Additional 
Refrigerant 
(g/m) 
Piping length 
for add. gas 
(m) 
S9*** 3/8”  5 3 15 15 7.5 
S12*** 
1.0 ~ 
1.75 HP 
7.5 
5 3 15 15 7.5 
S18*** 2.0HP 
1/2" 
15  3  20 15 10 
S24*** 2.5HP 5/8” 
1/4” 
5 
 
15  3  20 20 10