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TABLE OF CONTENTS
Safety Precautions ............................................................................. 4-7
Unit Nomenclature ................................................................................. 8
Outdoor Unit Specications ............................................................ 9-18
208-230V Outdoor Units ................................................................. 9-13
460V Outdoor Units ...................................................................... 14-18
Electrical Data ................................................................................. 19-20
208-230V Outdoor Unit Electrical Data ............................................. 19
460V Outdoor Unit Electrical Data ..................................................... 20
Heat Recovery Specications / Electrical Data ................................ 21
Outdoor Unit Dimensions .............................................................. 22-25
Heat Recovery Unit Dimensions ................................................... 26-28
Transporting / Lifting .......................................................................... 29
Placement Considerations ............................................................ 30-37
Selecting the Best Location for the Outdoor Unit(s) ..................... 30-31
Outdoor Unit Clearance Requirements ............................................. 32
Installing Outdoor Units Indoors ................................................... 33-34
Installing and Setting Outdoor Units in Dual /
Triple Frame Systems ........................................................................ 35
Selecting the Best Location / Clearance Requirements for the
Heat Recovery Unit(s) .................................................................. 36-37
Mounting / Anchoring the Outdoor Unit(s) ................................... 38-39
Mounting / Anchoring the Heat Recovery Unit(s) ............................. 40
General Refrigerant Piping System Information ......................... 41-53
LG Air Conditioner Technical Solution (LATS) .............................. 41-42
Refrigerant Safety Standards / Device
Connection Limitations ...................................................................... 43
Selecting Copper Piping .................................................................... 44
Copper Expansion and Contraction .............................................. 45-47
Piping Handling ................................................................................. 48
Refrigerant System Engineering ................................................... 49-51
Flaring and Brazing Procedures ................................................... 52-53
Installing for Heat Pump Operation .............................................. 54-67
Indoor Unit Y-Branch Kits..............................................................54-55
Outdoor Unit Y-Branch Kits ........................................................... 56-57
Header Kits ................................................................................... 58-59
Sample Layouts ............................................................................ 60-63
Piping Connections / Pipe Routes ..................................................... 64
Knock Outs ....................................................................................... 65
Removing the Leak Prevention Caps ................................................ 66
Service Ports ..................................................................................... 67
Installing for Heat Recovery Operation ........................................ 68-89
Indoor Unit Y-Branch Kits..............................................................68-69
Outdoor Unit Y-Branch Kits ........................................................... 70-71
Header Kits ................................................................................... 72-73
Heat Recovery Units ..................................................................... 74-79
Sample Layouts ............................................................................ 80-85
Piping Connections / Pipe Routes ..................................................... 86
Knock Outs ....................................................................................... 87
Removing the Leak Prevention Caps ................................................ 88
Service Ports ..................................................................................... 89
Refrigerant Piping for Separated Outdoor Units ......................... 90-92
Insulation ......................................................................................... 93-95
Electrical ........................................................................................ 96-110
General Information ...................................................................... 96-97
Power Wiring and Communication Cable Terminations ................ 98-99
Power Wiring and Communication Cable Connections ................... 100
Power Wiring and Communication Cable
System Layout ................................................................................. 101
Power Supply / Power Wiring Specications ............................ 102-105
Communication Cable Specications ....................................... 106-110
Pre-Commissioning .....................................................................111-157
Triple Leak / Pressure Check ....................................................111-113
Triple Evacuation Procedure .....................................................114-116
Vacuum Mode (Option) ..................................................................... 117
Pre-commissioning Start / Outdoor Unit
DIP Switch Settings ..........................................................................118
DIP Switch Settings for Use With Gen 4 Indoor Units ......................119
Setting the Optional Modes ...................................................... 120-134
Self Diagnostics Check .................................................................... 135
Indoor Unit Auto Addressing ..................................................... 136-138
Group Controlling Indoor Units ........................................................ 138
Central Control ......................................................................... 139-141
Addressing with Heat Recovery Units ...................................... 141-153
Temperature Sensing Location ................................................. 154-155
Setting External Static Pressure ............................................... 155-156
Package Pre-commissioning Documents /
Initiate a Request ............................................................................. 157
Error Codes ................................................................................. 159-168
LG Monitoring View (LGMV) Diagnostic Software .................. 169-170
Maintenance Recommendations ...................................................... 171
Checklists .................................................................................... 172-182