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LSN090HSV5
LG LSN090HSV5 User Manual
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48
Multi F Standard W
all-Mounted Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
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Figure 76: LMN079HVT
, LMN159HVT
, LMN249HVT
Indoor Unit Wiring Diagram.
WIRING
47
49
Table of Contents
Safety Instructions
3
Table of Contents
7
Unit Nomenclature
8
Multi F Multi-Zone Systems — Indoor Units
8
Introduction
9
Multi F and Multi F MAX Standard Wall-Mounted Units
9
Installation Personnel
9
Required Tools/Parts
9
Included Parts
10
Multi F Standard Wall-Mounted Indoor Units
10
General Data
11
R410A Refrigerant
11
Specifications
12
Multi F Multi Zone Standard Wall-Mounted Indoor Unit Specifications
12
Dimensions
13
Refrigerant Piping Diagram
15
Wall-Mounted Indoor Unit Refrigerant Flow Diagram
15
Wall-Mounted Indoor Unit Refrigerant Pipe Sizes
15
Wall-Mounted Indoor Unit Refrigerant Pipe Connections
15
Installation
16
Unpack and Inspect for Freight Damage
16
Indoor Unit Location Selection
17
Installing Near a Heat or Steam Source
17
Required Clearances
18
Installing in an Area Exposed to Unconditioned Air
18
Standard Wall Mount Indoor Unit Ceiling Clearance
18
Standard Wall Mount Indoor Unit Clearance Requirements
18
Indoor Unit Connections
18
Choose Piping and Wiring Route
19
General Guidelines — HVT and HSV5 Wall-Mounted Indoor Units
19
Drilling the Piping Hole in the Wall
19
Preparing for Installation
20
Mounting the Installation Plate to the Wall
20
Installation Plate Attaching Screw Placement
20
Removing the Indoor Unit Bottom Cover
21
Latch over Screws on Indoor Unit Bottom Panel
21
Remove Screws from Bottom Panel.
21
Remove Bottom Panel
21
Back of Bottom Cover Completely Removed from Indoor Unit
22
Bottom Cover with Top and Middle Unsnapped, Front View
22
Close up of Bottom Cover Connections
22
Mounting the Indoor Unit to the Installation Plate
23
Attaching the Indoor Unit to the Installation Plate
23
Finishing Indoor Unit Installation to the Wall Plate
23
Indoor Unit Connections
24
Preparing for Piping/Electrical Connections
24
Positioning the Indoor Unit Piping/Electrical Connections
24
L-Bracket Closed
24
Improper Piping Bending
25
Keep Piping Straight
25
Piping Installation When Piping Is on the Left Side
25
Using a Conduit for Indoor Unit Wiring/Cable Installation
26
Piping Installation When Piping Is on the Right Side
26
Liquidtight 3/4 Inch Elbow Connector Attached to Flexible Conduit
26
Bundling
27
Bundling the Connection Components
27
Cutaway of Proper Pipe and Cable Bundling
27
Flaring Procedure
28
Tightening the Flare Nuts
29
Loosening the Flare Nuts
29
Multi F with LGRED Outdoor Unit to Indoor Unit Piping Connections
30
Indoor Unit Pipe Sizes
30
Connection Socket Dimensions
30
Indoor Unit Piping Connections
30
Installing Field Piping to the Outdoor Unit Piping Connections
31
Using the Connection Socket
31
Connection Socket Installation
31
Close up of the Field Piping to Outdoor Unit Piping Connection
31
Multi F MAX with LGRED Outdoor Unit System Piping Connections
32
Branch Distribution to Indoor Unit Piping Connections
32
Branch Distribution Ports to Indoor Units
32
Installing Field Piping to Branch Distribution Unit Piping Connections
33
Connection Socket Diagram, External View
33
Close up of Branch Distribution to Indoor Unit Piping Connections
33
Socket Connection
34
Outdoor Unit or Branch Distribution Unit to Indoor Unit Connections
34
Indoor Unit Condensate Drain Hose Installation
35
Flexible Drain Hose Connection
35
Correct Slope Angle for Drain Hose
35
HVT and HSV5 Outdoor Unit Drain Hose Extension
35
Condensate Drain Hose Installation
36
Drain Hose Insulation
36
Checking the Indoor Unit Drain Hose for Leaks
36
Incorrect Slope Angles for the Drain Hose
36
Refrigerant Piping System Insulation
37
Typical Air-Conditioned Location
37
Special Air-Conditioned Location
37
Insulation Guidelines for Typical and Special Circumstances
37
Installing Refrigerant Piping Insulation
38
Typical Unconditioned Location
38
Typical Refrigerant Line Flare Fitting Insulation Detail
38
Insulating the Piping
38
Safety Gguidelines
39
General Information
39
Wiring
39
Adding a Ring Terminal to the Wiring
40
Close up of a Typical Ring Terminal
40
Comunication Cable Connections
40
Power Wiring
40
LG Terminal Connections
41
Power Supply
41
Power Wiring Specifications
41
Cable Diagram
42
Communication
42
Connection Cable Specifications
42
Wiring Diagram
42
Schematic of System When the Wiring Is more than 130 Ft
43
System Schematic if Wiring Is Less than 130 Ft
43
Communication Cables from Indoor Units to Remote Controllers
44
Controller Options
44
Examples of Indoor Unit to Zone Controller Connection
44
Accessories for some Group Control Applications
45
Communication Cables between Multiple Indoor Units Operating as Group
45
Example of Indoor Unit Group to Zone Controller Connections
45
General Specifications
45
Communication Cable
46
Connecting to the Power Wiring
46
HVT Indoor Unit Wiring Installation Procedure
46
Indoor Unit Electrical Connections
46
Cable Installation When Piping Is on the Left/Right Side
47
Indoor Unit Knockout
47
Indoor Unit Terminal Block with Ground Cable
47
LMN079HVT, LMN159HVT, LMN249HVT Indoor Unit Wiring Diagram
48
Connecting to Indoor Unit Terminal Block
49
Indoor to Outdoor Unit/Branch Distribution Unit Terminal Connections
49
Power Wiring / Communication Cable Connections
49
Connecting the Power Wiring
50
HSV5 Indoor Unit Wiring Installation Procedure
50
Location of the Indoor Unit Terminal Block
50
Steps to Removing the Bottom Cover
50
Wiring When Piping Is on the Left/Right Side
51
LSN090HSV5, LSN120HSV5, LSN180HSV5 Indoor Units Wiring Diagram
52
Indoor to Outdoor, Branch Distribution Unit Terminal Connections
53
Optional Wall-Mounted Sensor and Controller
54
Wall-Mounted Sensor Installation
54
Wired Controller Installation
54
Final Installation Procedures
55
Reattaching the Bottom Panel
55
Reattaching the Indoor Unit Panels - HVT
55
Reattaching the Screws on the Bottom Panel
55
Inserting Bottom Cover Hinges into the Indoor Unit Channels
56
Reattaching the Indoor Unit Bottom Cover
56
Securing the Bottom Cover C-Hooks to Indoor Unit Sockets
56
Snapping the Top Left and Right Sides
56
Air Filter Disassembly and Assembly
57
Installing Batteries into the Handheld Remote Controller
58
Decoding the Error Display
59
Error Code Nomenclature Definitions
59
Error Codes
59
Troubleshooting Using Error Codes
59
Multi F / Multi F MAX with LGRED Outdoor Unit Error Codes
60
Installation Checklist
61
4
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LG LSN090HSV5 Specifications
General
Brand
LG
Model
LSN090HSV5
Category
Air Conditioner
Language
English
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