Table Of Contents - LG MULTI F Installation Manual

Table of Contents

Safety Instructions3
Table Of Contents7
Unit Nomenclature8
Multi F Multi-Zone Systems — Indoor Units8
Introduction9
Multi F And Multi F Max Standard Wall-Mounted Units9
Installation Personnel9
Required Tools/Parts9
Included Parts10
Multi F Standard Wall-Mounted Indoor Units10
General Data11
R410A Refrigerant11
Specifications12
Multi F Multi Zone Standard Wall-Mounted Indoor Unit Specifications12
Dimensions13
Refrigerant Piping Diagram15
Wall-Mounted Indoor Unit Refrigerant Flow Diagram15
Wall-Mounted Indoor Unit Refrigerant Pipe Sizes15
Wall-Mounted Indoor Unit Refrigerant Pipe Connections15
Installation16
Unpack And Inspect For Freight Damage16
Indoor Unit Location Selection17
Installing Near A Heat Or Steam Source17
Required Clearances18
Installing In An Area Exposed To Unconditioned Air18
Standard Wall Mount Indoor Unit Ceiling Clearance18
Standard Wall Mount Indoor Unit Clearance Requirements18
Indoor Unit Connections18
Choose Piping And Wiring Route19
General Guidelines — Hvt And Hsv5 Wall-Mounted Indoor Units19
Drilling The Piping Hole In The Wall19
Preparing For Installation20
Mounting The Installation Plate To The Wall20
Installation Plate Attaching Screw Placement20
Removing The Indoor Unit Bottom Cover21
Latch Over Screws On Indoor Unit Bottom Panel21
Remove Screws From Bottom Panel.21
Remove Bottom Panel21
Back Of Bottom Cover Completely Removed From Indoor Unit22
Bottom Cover With Top And Middle Unsnapped, Front View22
Close Up Of Bottom Cover Connections22
Mounting The Indoor Unit To The Installation Plate23
Attaching The Indoor Unit To The Installation Plate23
Finishing Indoor Unit Installation To The Wall Plate23
Preparing For Piping/Electrical Connections24
Positioning The Indoor Unit Piping/Electrical Connections24
L-Bracket Closed24
Improper Piping Bending25
Keep Piping Straight25
Piping Installation When Piping Is On The Left Side25
Using A Conduit For Indoor Unit Wiring/Cable Installation26
Piping Installation When Piping Is On The Right Side26
Liquidtight 3/4 Inch Elbow Connector Attached To Flexible Conduit26
Bundling27
Bundling The Connection Components27
Cutaway Of Proper Pipe And Cable Bundling27
Flaring Procedure28
Tightening The Flare Nuts29
Loosening The Flare Nuts29
Multi F With Lgred Outdoor Unit To Indoor Unit Piping Connections30
Indoor Unit Pipe Sizes30
Connection Socket Dimensions30
Indoor Unit Piping Connections30
Installing Field Piping To The Outdoor Unit Piping Connections31
Using The Connection Socket31
Connection Socket Installation31
Close Up Of The Field Piping To Outdoor Unit Piping Connection31
Multi F Max With Lgred Outdoor Unit System Piping Connections32
Branch Distribution To Indoor Unit Piping Connections32
Branch Distribution Ports To Indoor Units32
Installing Field Piping To Branch Distribution Unit Piping Connections33
Connection Socket Diagram, External View33
Close Up Of Branch Distribution To Indoor Unit Piping Connections33
Socket Connection34
Outdoor Unit Or Branch Distribution Unit To Indoor Unit Connections34
Indoor Unit Condensate Drain Hose Installation35
Flexible Drain Hose Connection35
Correct Slope Angle For Drain Hose35
Hvt And Hsv5 Outdoor Unit Drain Hose Extension35
Condensate Drain Hose Installation36
Drain Hose Insulation36
Checking The Indoor Unit Drain Hose For Leaks36
Incorrect Slope Angles For The Drain Hose36
Refrigerant Piping System Insulation37
Typical Air-Conditioned Location37
Special Air-Conditioned Location37
Insulation Guidelines For Typical And Special Circumstances37
Installing Refrigerant Piping Insulation38
Typical Unconditioned Location38
Typical Refrigerant Line Flare Fitting Insulation Detail38
Insulating The Piping38
Safety Gguidelines39
General Information39
Wiring39
Power Wiring40
Comunication Cable Connections40
Close Up Of A Typical Ring Terminal40
Adding A Ring Terminal To The Wiring40
Power Supply41
Power Wiring Specifications41
Lg Terminal Connections41
Communication42
Connection Cable Specifications42
Cable Diagram42
Wiring Diagram42
System Schematic If Wiring Is Less Than 130 Ft43
Schematic Of System When The Wiring Is More Than 130 Ft43
Controller Options44
Communication Cables From Indoor Units To Remote Controllers44
Examples Of Indoor Unit To Zone Controller Connection44
Communication Cables Between Multiple Indoor Units Operating As Group45
General Specifications45
Example Of Indoor Unit Group To Zone Controller Connections45
Accessories For Some Group Control Applications45
Indoor Unit Electrical Connections46
Connecting To The Power Wiring46
Communication Cable46
Hvt Indoor Unit Wiring Installation Procedure46
Cable Installation When Piping Is On The Left/Right Side47
Indoor Unit Knockout47
Indoor Unit Terminal Block With Ground Cable47
Lmn079Hvt, Lmn159Hvt, Lmn249Hvt Indoor Unit Wiring Diagram48
Connecting To Indoor Unit Terminal Block49
Indoor To Outdoor Unit/Branch Distribution Unit Terminal Connections49
Power Wiring / Communication Cable Connections49
Connecting The Power Wiring50
Hsv5 Indoor Unit Wiring Installation Procedure50
Steps To Removing The Bottom Cover50
Location Of The Indoor Unit Terminal Block50
Wiring When Piping Is On The Left/Right Side51
Lsn090Hsv5, Lsn120Hsv5, Lsn180Hsv5 Indoor Units Wiring Diagram52
Indoor To Outdoor, Branch Distribution Unit Terminal Connections53
Optional Wall-Mounted Sensor And Controller54
Wired Controller Installation54
Wall-Mounted Sensor Installation54
Final Installation Procedures55
Reattaching The Indoor Unit Panels - Hvt55
Reattaching The Bottom Panel55
Reattaching The Screws On The Bottom Panel55
Reattaching The Indoor Unit Bottom Cover56
Inserting Bottom Cover Hinges Into The Indoor Unit Channels56
Securing The Bottom Cover C-Hooks To Indoor Unit Sockets56
Snapping The Top Left And Right Sides56
Air Filter Disassembly And Assembly57
Installing Batteries Into The Handheld Remote Controller58
Troubleshooting Using Error Codes59
Error Codes59
Decoding The Error Display59
Error Code Nomenclature Definitions59
Multi F / Multi F Max With Lgred Outdoor Unit Error Codes60
Installation Checklist61