CONTENTS
1. Precaution .................................................................................................................................................... 1
1.1 Safety Precaution .................................................................................................................................................... 1
1.2 Warning ................................................................................................................................................................... 1
2. Function ........................................................................................................................................................ 3
3. Dimension .................................................................................................................................................... 5
3.1 Indoor Unit ................................................................................................................................................................. 5
3.2 Outdoor Unit .............................................................................................................................................................. 5
4. Refrigerant cycle diagram .......................................................................................................................... 6
5. Wiring diagram ............................................................................................................................................. 7
5.1 Indoor Unit ................................................................................................................................................................. 7
42LUVH055N 42LUVH065N 42LUVH075N..................................................................................................... 7
5.2 Outdoor Unit .............................................................................................................................................................. 8
38LUVH055N 38LUVH065N .................................................................................................................................. 8
38LUVH075N ............................................................................................................................................................... 8
6. Installation details ........................................................................................................................................ 9
6.1 Wrench torque sheet for installation .......................................................................................................................... 9
6.2 Connecting the cables ............................................................................................................................................... 9
6.3 Pipe length and the elevation .................................................................................................................................. 10
6.4 Air purging of the piping and indoor unit .................................................................................................................. 11
6.5 Pumping down (Re-installation) ............................................................................................................................... 12
6.6 Re-air purging (Re-installation) ................................................................................................................................ 13
6.7 Balance refrigerant of the 2-way, 3-way valves........................................................................................................ 14
6.8 Evacuation ............................................................................................................................................................... 15
6.9 Gas charging ........................................................................................................................................................... 16
7. Capacity table ............................................................................................................................................. 17
42/38LUVH055N ........................................................................................................................................................... 17
42/38LUVH065N ........................................................................................................................................................... 18
42/38LUVH075N ........................................................................................................................................................... 19
8. Electronic function .................................................................................................................................... 20
8.1 Abbreviation .......................................................................................................................................................... 20
8.2 Display function ..................................................................................................................................................... 20
8.3 Protection .............................................................................................................................................................. 20
8.4 Fan-Only Mode ..................................................................................................................................................... 21
8.5 Cooling Mode ........................................................................................................................................................ 21
8.6 Drying mode .......................................................................................................................................................... 22
8.7 Heating mode ........................................................................................................................................................ 23
8.8 Auto mode function ............................................................................................................................................... 26
8.9 Forced operation function ..................................................................................................................................... 26
8.10 Action of 4-way valve .......................................................................................................................................... 26
8.11 Two speeds outdoor fan function ......................................................................................................................... 26
