Engineering Manual
Table Of Contents
- Convergence of Technology, Innovation, Flexibility, & Style
- Unit Nomenclature
- Outdoor Unit Overview
- Indoor Unit Overview
- Controls and Options Overview
- Art Cool Mirror Indoor Units
- General Data / Specifications
- Dimensions
- Cooling Capacity Table
- Heating Capacity Table
- Acoustic Data
- Air Velocity and Temperature Distribution
- Refrigerant Flow Diagram
- Wiring Diagram
- Factory Supplied Parts and Materials
- Installation and Best Layout Practices
- Art Cool Gallery Indoor Units
- General Data / Specifications
- Dimensions
- Cooling Capacity Table
- Heating Capacity Table
- Acoustic Data
- Air Velocity and Temperature Distribution
- Refrigerant Flow Diagram
- Wiring Diagram
- Factory Supplied Parts and Materials
- Installation and Best Layout Practices
- Standard Wall-Mounted Indoor Units
- General Data / Specifications
- Dimensions
- Cooling Capacity Table
- Heating Capacity Table
- Acoustic Data
- Air Velocity and Temperature Distribution
- Refrigerant Flow Diagram
- Wiring Diagram
- Factory Supplied Parts and Materials
- Installation and Best Layout Practices
- Duct (Low Static) Indoor Units
- General Data / Specifications
- Dimensions
- Cooling Capacity Table
- Heating Capacity Table
- External Static Pressure
- Acoustic Data
- Refrigerant Flow Diagrams
- Wiring Diagram
- Factory Supplied Parts and Materials
- Installation and Best Layout Practices
- Duct (High Static) Indoor Units
- General Data / Specifications
- Dimensions
- Cooling Capacity Table
- Heating Capacity Table
- External Static Pressure / Acoustic Data
- Refrigerant Flow Diagrams
- Wiring Diagrams
- Factory Supplied Parts and Materials / Installation
- Installation and Best Layout Practices
- Four-Way Ceiling Cassette Indoor Units
- General Data / Specifications
- Dimensions
- Dimensions
- Cooling Capacity Table
- Heating Capacity Table
- Acoustic Data
- Air Velocity and Temperature Distribution
- Refrigerant Flow Diagram
- Wiring Diagram
- Factory Supplied Parts and Materials
- Installation and Best Layout Practices
- Vertical-Horizontal Indoor Units
- General Data / Specifications
- Dimensions
- Cooling Capacity Table
- Heating Capacity Table
- External Static Pressure
- Acoustic Data
- Refrigerant Flow Diagram
- Wiring Diagram
- Factory Supplied Parts and Materials
- Installation and Best Layout Practices
- Equipment Selection Procedure
- Building Ventilation Design Guide
- Placement Considerations
- Refrigerant Piping Design
- Design Guideline Summary
- Creating a Balanced System / Manual Layout Procedure
- LG Engineered Multi F MAX Y-Branch Kit
- Refrigerant Charge
- Installation & Layout Best Practices
- Refrigerant Piping System Layout
- Piping Insulation
- Condensate Drain Piping
- Y-Branch Kit
- Wiring Connections
- Power Wiring (208-230V) and Communications Cable Details
- Indoor Unit Group Control
- Acronyms
FOUR-WAY CEILING-CASSETTE INDOOR UNITS
Installation and Best Layout Practices
1. Remove the packaging, take out air inlet grille from the front
panel (1A), and then remove the corner covers of the panel (1B).
2. Attach the panel to the indoor frame by inserting the hooks as
shown (2).
3. Attach two screws on diagonal corners of each panel, but do not
tighten completely (3). Screws to attach the panel to the indoor
unit frame are factory-provided and can be found in the shipping
box.
4. Verify the panel is aligned with the ceiling. Adjust the height by
using the hanging bolts as shown (4).
5. Attach the corner covers (5).
6. Unscrew the control panel cover (6).
7. Connect the one display connector (CN-DISP) and the two vane
control connectors (CN-VANE1, CN-VANE2) of the front panel to the
indoor unit PCB (7).
8. Close the control box cover. Attach the link on the front panel as
shown (8). The link is supplied in the front panel shipping package.
9. Attach the other side of the link on the lter guide of the air inlet grille,
then install the lter and the air inlet grille on the front panel (9).
Grille
Corner
Cover
1A
1B
Indoor Unit
Decoration panel
Insulation should fit tightly so that
cool air does not leak
Ceiling
Tile
Decoration panel must be installed properly; cool air will leak from any gaps found between the indoor unit frame and the decoration panel,
which will cause condensation to generate.
Finalizing Indoor Unit Installation—
Installing the Decoration Panel
Figure 216:PTVK430 Ventilation Kit.
Hook clip
Hook
23
45
Screw
CN VANE 1,2
CN DISP
Link
Link
Filter
guide
67
8
9
Figure 217:Installing the Decoration Panel.
PTVK430 Ventilation Kit
PTVK430 Ventilation Kit includes a flange for field-supplied ventilation pipe connection.
Easily connects at the four-way ceiling-cassette three (3) inch fresh air knockout hole.
Figure 218:Ensure that no gaps are present between the
indoor unit frame and the decoration panel.
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
152 | CEILING-CASSETTE
Multi F and Multi F MAX Indoor Unit Engineering Manual
MULTI
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MAX
MULTI
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