LG EEV Kit Bedienungsanleitung
P/NO : MFL70524401
INSTALLATION MANUAL
Applied(AHU)
EEV Kit
Original instruction
AIR
CONDITIONER
www.lghvac.com
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 © 2018 LG Electronics Inc. All Rights Reserved.
ENGLISH
FRANÇAIS ESPAÑOL
TIPS FOR SAVING ENERGY
2
ENGLISH
• Do not cool excessively indoors. This may be harmful for your health and may consume more
electricity.
• Block sunlight with blinds or curtains while you are operating the air conditioner.
• Keep doors or windows closed tightly while you are operating the air conditioner.
• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.
• Speed up the fan to cool or warm indoor air quickly, in a short period of time.
• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air
conditioner is used for many hours.
• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the
air flow or weaken the cooling / dehumidifying functions.
For your records
Staple your receipt to this page in case you need it to prove the date of purchase or for warranty
purposes. Write the model number and the serial number here:
Model number :
Serial number :
You can find them on a label on the side of each unit.
Dealer’s name :
Date of purchase :
Here are some tips that will help you minimize the power consumption when you use the air
conditioner. You can use your air conditioner more efficiently by referring to the instructions
below:
TIPS FOR SAVING ENERGY
3
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
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, with
the Nation Electrical Code NFPA 70/ANSI C1-1003 or current edition and Canadian Electrical
Code Part1 CSA C.22.1.
• 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.
• 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.
• Always install a dedicated circuit and breaker.
- Improper wiring or installation may cause 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.
• For installation, always contact the dealer or an Authorized Service Center.
- There is risk of fire, electric shock, explosion, or injury.
!
!
!
SAFETY PRECAUTIONS
ENGLISH
• 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.
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.
!
SAFETY PRECAUTIONS
4
ENGLISH
5
3IMPORTANT SAFETY INSTRUCTIONS
6INSTALLATION COMPOSITION
7EEV KIT INSTALLATION
7Product installation
8Welding
11 ELECTRICAL CONNECTION
11 Cable connection
13 LEAK TEST AND VACUUM
13 Leak test
13 Vacuum
TABLE OF CONTENTS
TABLE OF CONTENTS
ENGLISH
6INSTALLATION COMPOSITION
ENGLISH
INSTALLATION COMPOSITION
ི
ཱུ
ཱུ
ཱི
ྲྀ
Liquid pipe
Gas pipe
Refrigerant pipe
Pipe sensor
Communication cable
Refrigerant flow (air conditioning)
Refrigerant flow (heating)
This EEV KIT is a product that connects an AHU with an outdoor unit with the following
composition.
installation components
No. Name Notes
1 AIR HANDLING UNIT -
2 AHU EEV KIT
Connectible outdoor unit capacity
PRLK396A0 22 ~ 40 HP
PRLK594A0 42 ~ 60 HP
3 AHU Comm. KIT -
4 Outdoor unit MULTI V
5 Pipe sensor_IN Sensor: Ø 5, length: 5m, cable color: Black
6 Pipe sensor_OUT Sensor: Ø 7, length: 5m, cable color: Red
7 90˚ elbow PRLK396A0 Ø19.05 (5/8")
PRLK594A0 Ø19.05 (5/8")
EEV KIT INSTALLATION 7
EEV KIT INSTALLATION
ENGLISH
Product installation
1) Remove the two screws
from the EEV KIT's base
plate. Move the screws to
separate the cover plate and
base plate of the EEV KIT.
2) Remove the base plate. 3) Remove the four
screws from the
cover plate
4) Remove the cover
plate.
2Drill holes in the correct locations and use 4 screws (M5, not provided) to affix the EEV KIT.
1Remove the screws to separate the cover plate and base plate of the EEV KIT.
A
Pipe diameter
Ø19.05 mm (5/8")
B
Hole size
Ø6 mm (1/4")
Pipe diameter
Ø19.05 mm (5/8")
Model name length
A B
PRLK594A0 273 mm
(10-3/4")
250.3 mm
(9-6/7")
PRLK396A0 273 mm
(10-3/4")
190.3 mm
(7-1/2")
EEV KIT INSTALLATION
8
ENGLISH
Welding
1Check the inlet/outlet pipe before welding the EEV KIT.
AHU side Outdoor
unit side
Outlet
A
Inlet
Air-conditioning
standard refrigerant flow
2Weld the connector pipe (not provided) at the outdoor unit.
3When connecting the outdoor unit's connector pipe and the EEV KIT pipe, be sure to use a
socket (not provided) that meets the necessary specifications.
4As the size of the EEV KIT pipe and the outdoor unit's connector pipe could vary, check the
sizes beforehand and use a socket that meets the necessary specifications.
5When welding, make sure to follow the safety precautions at all times.
6Be sure to insulate 'A' part after welding with insulation (15T or more).
CAUTION
• Be sure to pass nitrogen through when welding parts together. Failure to do so could lead
to the compressor not working properly or becoming damaged.
• It is essential that the part be wrapped with a wet towel before and after welding. Failure
to do so could result in the part becoming damaged.
• Use a protective panel or be especially cautious not to let welding sparks come in contact
with the AHU panel.
• After welding, be sure to test for any leakage.
• Failure to properly insulate after welding may result in leakage.
!
Outdoor unit connector pipe
(not included)
Connector socket
(not included)
Connector socket(Elbow)
(not included)
[AHU and Outdoor Unit Connection]
AHU Connection Part
EEV KIT INSTALLATION 9
ENGLISH
When conducting welding, you must pass nitrogen through at about 0.02 MPa (0.2 kg/cm2).
Before proceeding to weld, you must remove all the air from inside the pipe using nitrogen.
Failure to use nitrogen results in the occurrence of oxidation inside the pipe, leading to the
malfunction of the compressor and blocking of the strainer.
WARNING
• While welding, always be careful that no refrigerant leaks.
• When refrigerant combusts, it creates a toxic gas that is harmful to the body.
• Do not conduct welding in an enclosed area.
• After welding a pipe, be sure to test for any leakage.
!
Welding area
Taping
Pressure regulator
High-pressure hose
Nitrogen
10 EEV KIT INSTALLATION
ENGLISH
pipe cutting
1Be sure to use a copper pipe cutter for the pipe cutting.
2Remove any burrs.
(When cutting, have the pipe end tilted downward so that any burrs do not get inside of the
pipe.)
Copper
pipe cutter 90° Incline Roughness
Pipe
Copper
pipe cutter 90° Incline Roughness
Pipe
CAUTION
• Cut the cutting area in a straight line.
!
CAUTION
• The presence of burrs can result in refrigerant leakage, so be sure to remove any burrs
with a reamer.
• Cutting dust could lead to malfunctioning if it gets inside the pipe.
!
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