4.2.2.5 Drainpipe........................................................................................................................................................................... 56

4.2.2.6 Pipe Support.................................................................................................................................................................... 57

4.2.2.7 Cables................................................................................................................................................................................. 57

4.3 Unpacking and Acceptance............................................................................................................................................... 59

4.4 Installing the Indoor Unit................................................................................................................................................... 59

4.4.1 Checking the Nitrogen Pressure................................................................................................................................... 59

4.4.2 Removing the Pallet......................................................................................................................................................... 60

4.4.3 Removing the Transport Fasteners from the Compressor................................................................................... 61

4.4.4 Securing the Cabinet........................................................................................................................................................ 62

4.4.5 (Optional) Installing the Top Frame........................................................................................................................... 65

4.5 Installing the Outdoor Unit............................................................................................................................................... 67

4.5.1 Checking the Nitrogen Pressure................................................................................................................................... 68

4.5.2 Removing the Pallet......................................................................................................................................................... 69

4.5.3 Securing an Outdoor Unit.............................................................................................................................................. 70

4.5.3.1 Horizontal Installation Scenario............................................................................................................................... 70

4.5.3.2 Vertical Installation Scenario (NetCol500-A060/NetCol500-A080)..............................................................71

4.5.3.3 Vertical Installation Scenario (NetCol500-A120)................................................................................................ 77

4.6 (Optional) Installing Low-temperature Component................................................................................................ 81

4.6.1 Checking the Nitrogen Pressure................................................................................................................................... 81

4.6.2 Removing the Pallet......................................................................................................................................................... 82

4.6.3 Securing a Low temperature Component................................................................................................................. 83

4.7 Installing the Water Cooling Module.............................................................................................................................83

4.7.1 Checking the Nitrogen Pressure................................................................................................................................... 83

4.7.2 Removing the Pallet......................................................................................................................................................... 84

4.7.3 Securing a Water Cooling Module.............................................................................................................................. 84

4.8 Installing Pipes....................................................................................................................................................................... 85

4.8.1 Notices for Laying Pipes.................................................................................................................................................. 86

4.8.2 Welding Indoor Unit Pipes............................................................................................................................................. 88

4.8.3 Welding Outdoor Unit Pipes..........................................................................................................................................91

4.8.4 (Optional) Welding Pipes for the Low Temperature Component.................................................................... 91

4.8.5 Welding the Water Cooling Module........................................................................................................................... 92

4.8.6 Installing Cooling Water pipes for the Water Cooling Module......................................................................... 93

4.8.7 Installing the Drainpipe................................................................................................................................................... 94

4.8.8 (Optional) Installing the Humidifier Water Inlet Pipe......................................................................................... 95

4.8.8.1 Installing the Humidifier Water Inlet Pipe (With a Humidifier Hose).........................................................96

4.8.8.2 Installing the Humidifier Water Inlet Pipe (Without a Humidifier Hose).................................................. 97

4.8.9 Leakage Test with Nitrogen for Refrigerant Pipes................................................................................................. 99

4.8.10 (Optional) Leakage Test with Water for the Water Cooling Module.........................................................101

4.9 Installing Cables.................................................................................................................................................................. 102

4.9.1 Cable Connection Precautions.................................................................................................................................... 102

4.9.2 Installing the Equipotential Ground Cable............................................................................................................. 102

4.9.3 Installing the Indoor Unit Power Cable................................................................................................................... 103

Issue 08 (2021-09-17)

Table of Contents