LG AHU EEV KIT User manual

MFL70524403
Rev.01_121720
INSTALLATION MANUAL
AHU EEV KIT
Original instruction
AIR
CONDITIONER
www.lg.com
Please read this installation manual completely before installing the product.
Installation work must be performed in accordance with the national wiring standards
by authorized personnel only.
Please retain this installation manual for future reference after reading it thoroughly.
Copyright © 2019 - 2021 LG Electronics Inc. All Rights Reserved.
ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH
ΕΛΛΗΝΙΚΆ
ČEŠTINA
NEDERLANDS
POLSKI
PORTUGUÊS
MAGYAR
БЪЛГАРСKИ
SRPSKI
HRVATSKI
SLOVENČINA
SLOVENŠČINA

IMPORTANT SAFETY INSTRUCTIONS
2
IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
Always comply with the following precautions to avoid
dangerous situations and ensure peak performance of your
product.
• This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning use of
the appliance by a person responsible for their safety.
• Children should be supervised to ensure that they do not play
with the appliance.
• If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified persons
in order to avoid a hazard.
WARNING
It can result in serious injury or death when the directions are
ignored.
CAUTION
It can result in minor injury or product damage when the
directions are ignored.
WARNING
• Installation or repairs made by unqualified persons can result
in hazards to you and others.
• Installation MUST conform with local building codes or, in the
absence of local codes.
• The information contained in the manual is intended for use
by a qualified service technician familiar with safety
procedures and equipped with the proper tools and test
instruments.
!
!
!
ENGLISH

3
IMPORTANT SAFETY INSTRUCTIONS
ENGLISH
• Failure to carefully read and follow all instructions in this
manual can result in equipment malfunction, property
damage, personal injury and/or death.
Installation
• Don’t use a power cord, a plug or a loose socket which is
damaged.
- Otherwise, it may cause a fire or electrical shock.
• For electrical work, contact the dealer, seller, a qualified
electrician, or an Authorized Service Center.
- Do not disassemble or repair the product. There is risk of fire
or electric shock.
• Always ground the product.
- There is risk of fire or electric shock.
• Install the panel and the cover of control box securely.
- There is risk of fire or electric shock.
• Use the correctly rated breaker or fuse.
- There is risk of fire or electric shock.
• Do not modify or extend the power cable.
- There is risk of fire or electric shock.
• Do not let the air conditioner run for a long time when the
humidity is very high and a door or a window is left open.
- Moisture may condense and wet or damage furniture.
• Be cautious when unpacking and installing the product.
- Sharp edges could cause injury. Be especially careful of the
case edges and the fins on the condenser and evaporator.
• You need to use a safely insulated power supply which
follows IEC61558-2-6 and NEC Class2.
- If you do not follow, It may cause fire, electric shock,
explosion or injury.
• Securely attach the electrical part cover to EEV Controller
Module.
- If the electric part cover of EEV Controller Module is not
attached securely, it could result in a fire or electric shock
due to dust, water, etc.

• Do not keep or use flammable gases or combustibles near
the equipment.
- Otherwise, it may cause a fire or the failure of product.
• Do not install, remove or reinstall the unit by yourself.
- Otherwise, it may cause a fire, electrical shock, explosion or
injury.
• Do not disassemble or repair the product randomly.
- It will cause a fire or electrical shock.
• Do not install the product in a place where there is the
concern of falling down.
- Otherwise, it may result in personal injury.
• Do not install the product on a defective installation stand.
- It may cause injury, accident, or damage to the product.
• Be sure the installation area does not deteriorate with age.
- If the base collapses, the air conditioner could fall with it,
causing property damage, product failure, and personal
injury.
• There is a risk of fire and explosion.
- Inert gas (nitrogen) should be used when you check
plumbing leaks, cleaning or repairs of pipes etc. If you are
using combustible gases including oxygen, product may
have the risk of fires and explosions.
Operation
• Do not store or use flammable gas or combustibles near the
product.
- There is risk of fire or failure of product.
• Do not share the outlet with other appliances.
- It will cause an electric shock or a fire due to heat
generation.
• Do not use the damaged power cord.
- Otherwise, it may cause a fire or electrical shock.
• Do not modify or extend the power cord randomly.
- Otherwise, it may cause a fire or electrical shock.
IMPORTANT SAFETY INSTRUCTIONS
4
ENGLISH

IMPORTANT SAFETY INSTRUCTIONS 5
ENGLISH
• Take care so that the power cord may not be pulled during
operation.
- Otherwise, it may cause a fire or electrical shock.
• Unplug the unit if strange sounds, smell, or smoke comes
from it.
- Otherwise, it may cause electrical shock or a fire.
• Keep flames away.
- Otherwise, may occur a fire.
• Take the power plug out if necessary, holding the head of the
plug and do not touch it with wet hands.
- Otherwise, it may cause a fire or electrical shock.
• Do not use the power cord near the heating tools.
- Otherwise, it may cause a fire and electrical shock.
• Do not allow water to run into electrical parts.
- Otherwise, it may cause the failure of machine or electrical
shock.
• Hold the plug by the head when taking it out.
- It may cause electric shock and damage.
• Be cautious that water could not enter the product.
- Otherwise, it may cause a fire electrical shock or product
damage.
• Do not step on the indoor/outdoor unit and do not put
anything on it.
- It may cause an injury through dropping of the unit or falling
down.
• Do not place a heavy object on the power cord.
- Otherwise, it may cause a fire or electrical shock.
• When the product is submerged into water, always contact
the service center.
- Otherwise, it may cause a fire or electrical shock.

6IMPORTANT SAFETY INSTRUCTIONS
ENGLISH
CAUTION
Installation
• Always check for gas (refrigerant) leakage after installation or
repair of product.
- Low refrigerant levels may cause failure of product.
• Install the drain hose to ensure that water is drained away
properly.
- A bad connection may cause water leakage.
• Keep level even when installing the product.
- To avoid vibration or water leakage.
• Do not install the product where the noise or hot air from the
outdoor unit could damage the neighborhoods.
- It may cause a problem for your neighbors.
• Do not install the product where it will be exposed to sea
wind (salt spray) directly.
- It may cause corrosion on the product. Corrosion, particularly
on the condenser and evaporator fins, could cause product
malfunction or inefficient operation.
• Thickness of copper pipes used are as shown “Flaring work”
Table.
- Never use copper pipes thinner than that in the table even
when it is available on the market
• Do not use copper pipes having a collapsed.
- Otherwise, the expansion valve or capillary tube may
become blocked with contaminants.
• For R410A model, use piping, flare nut and tools which is
specified for R410A refrigerant.
- Using of (R22) piping, flare nut and tools may cause
abnormally high pressure in the refrigerant cycle (piping), and
possibly result in explosion and injury.
• It is desirable that the amount of residual oil less than 40
mg/10m.
!

7
2IMPORTANT SAFETY INSTRUCTIONS
8INSTALLATION COMPOSITION
9TECHNICAL SPECIFICATION
9Specification Sheet
9Combination of AHU Communication Kit and ODU system with EEV Kit.
9Compatibility of EEV Kits and IDUs.
11 EEV Kit INSTALLATION
11Product Installation
16 Welding
17 ELECTRICAL CONNECTION
20 EEV CONTROLLER MODULE SPECIFICATION
20 Dimension
20 Installation
21 EEV CONTROLLER INSTALLATION
21 Electric wiring work (EEV Controller)
22 THERMISTORS INSTALLATION
22 Pipe thermistors Installation
TABLE OF CONTENTS
TABLE OF CONTENTS
ENGLISH

8INSTALLATION COMPOSITION
ENGLISH
INSTALLATION COMPOSITION
This EEV Kit is a product that connects an AHU with an outdoor unit with the following
composition.
Control Signal (field supply)
Pipe
Thermistor Signal
Refrigerant flow (cooling)
Refrigerant flow (heating)
΍Ύ
Ώ
ΐ
Α
ΒΓ
Installation components
No. Name Notes
1AHU Local supply
2EEV Kit
Model Connectable outdoor unit capacity
PRLK048A0 2 ~ 10 HP
PRLK096A0 12 ~ 20 HP
PRLK396A0 22 ~ 40 HP
PRLK594A0 42 ~ 60 HP
3AHU Communication Kit -
4Outdoor unit MULTI V
5Remote controller LG wired remote controller(Optional)
6Pipe in(Liquid) thermistor Sensor: Ø 5, Length: 5m, Cable color: Black
7Pipe out(Gas) thermistor Sensor: Ø 7, Length: 5m, Cable color: Red

TECHNICAL SPECIFICATION 9
ENGLISH
TECHNICAL SPECIFICATION
Specification Sheet
Combination of AHU Communication Kit and ODU system with EEV Kit.
1) Maximum allowable capacity with HR Unit.
Compatibility of EEV Kits and IDUs.
1) Return Air is for PAHCMR000 / PAHCMC000
2) Supply Air is for PAHCMS000 / PAHCMM000 + PAHCMC000
3) IDUs includes Hydro Kit/DX ERV/FAU(OAU)
Model PRLK048A0 PRLK096A0 PRLK396A0 PRLK594A0
Dimensions
Width mm 217 217 349.5 409.5
Depth mm 83 83 180 180
Height mm 404 404 345.5 345.5
Net. Weight kg 3.1 3.1 4.3 5.5
Casing Color Warm Gray
Material Galvanized steel plate
Composition
Pipe Sensor Liquid Pipe Sensor Ø5, 5 kΩ, 5m, Black
Gas Pipe Sensor Ø7, 5 kΩ, 5m, Red
Installation Manual EA 1 1 1 1
EEV Controller (PAEEVA020) EA - - - 1
Rated Voltage V DC12 ±1.2
Connectable Outdoor Unit Capacity HP 2 ~ 10 12 ~ 20 22 ~ 40 42 ~ 60
Liquid Pipe Size mm 12.7 12.7 19.05 19.05
Operation Pressure MPa 0 ~ 4.5
EEV Kit AHU Communication Kit Connection by ODU system
PAHCMR000 PAHCMS000 Heat pump Heat recovery
PRLK048A0 O O O O
PRLK096A0 O O O O
PRLK396A0 O O O X (Max 33.7 kW 1))
PRLK594A0 X O O (with PAHCMS000) X
Case Combination Compatibility
Return Air1) Supply Air 2)
1 Multiple PRLK048A0 / PRLK096A0 O O
2 Multiple PRLK048A0 / PRLK096A0 + IDUs3) O X
3PRLK396A0 + IDUs X X
PRLK594A0 + IDUs X X
4PRLK396A0 + PRLK048A0 / PRLK096A0 X X
PRLK594A0 + PRLK048A0 / PRLK096A0 X X
5
PRLK396A0 + PRLK396A0 or PRLK594A0
(Exception : 2 x PRLK396A0) X (O) X (O)
PRLK594A0 + PRLK396A0 or PRLK594A0 X X

10
ENGLISH
TECHNICAL SPECIFICATION
EEV Kit
Model PRLK048A0
PRLK096A0
PRLK396A0
PRLK594A0
Shape
W
D
H
W
D
H
Quantity(EA) 1 1
Model Name Dimension (mm) Note
W D H
PRLK048A0/PRLK096A0 217 83 404 -
PRLK396A0 349.5 180 345.5 -
PRLK594A0 409.5 180 345.5 EEV Controller included