LG AKWW0243AA0 User manual

LG Water Cooled Package
Air Conditioner
OWNER'S MANUAL
LG
MODELS: AKWW0243AA0 AKWW0243YA0
AKWW0183AA0 AKWW0183YA0
AKWW0123AA0 AKWW0123YA0
AKWW0093AA0 AKWW0093YA0
IMPORTANT
• Please read this owner's manual carefully and thoroughly
before installing and operating your room air conditioner.
• Please retain this owner's manual for future reference after
reading it thoroughly.
website http://www.lgservice.com
ENGLISH FRANÇAIS ESPAÑOL

2Water Cooled Package Air Conditioner
Water Cooled Package Air Conditioner Owner’s Manual
TABLE OF CONTENTS
FOR YOUR RECORDS
Write the model and serial numbers here:
Model #
Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Date Purchased
■Staple your receipt to this page in the event you need
it to prove date of purchase or for warranty issues.
READ THIS MANUAL
Inside you will find many helpful hints on how to use
and maintain your air conditioner properly. Just a little
preventive care on your part can save you a great deal
of time and money over the life of your air conditioner.
You'll find many answers to common problems in the
chart of troubleshooting tips. If you review our chart of
Troubleshooting Tips first, you may not need to call
for service at all.
PRECAUTION
•Contact the authorized service technician for
repair or maintenance of this unit.
• Contact the installer for installation of this unit.
• The air conditioner is not intended for use by
young children or invalids without supervision.
• Young children should be supervised to ensure
that they do not play with the air conditioner.
• When the power cord is to be replaced,
replacement work shall be performed by
authorized personnel only using only genuine
replacement parts.
• Installation work must be performed in
accordance with the National Electric Code by
qualified and authorized personnel only.
Safety Precautions.........................3
Prior to Operation ..........................7
Introduction ....................................8
How to use the Mode Selection
Button............................................12
Maintenance and Service ............18

Owner's Manual 3
Safety Precautions
ENGLISH
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed.
■Be sure to read before installing the air conditioner.
■Be sure to observe the cautions specified here as they include important items related to safety.
■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified
by the following indications.
■Meanings of symbols used in this manual are as shown below.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
Be sure not to do.
Be sure to follow the instruction.
■Installation
Do not place the power cord near a heater.
• It may cause fire and electric shock.
Do not use the power cord near flammable
gas or combustibles such as gasoline,
benzene, thinner, etc.
• It may cause explosion or fire.
Do not disassemble or modify products.
• It may cause failure and electric shock.
Gasolin

4Water Cooled Package Air Conditioner
Safety Precautions
■Operation
Plug in the power plug
properly.
• Otherwise, it will cause
electric shock or fire due to
heat generation or electric
shock.
Do not operate or stop the
unit by inserting or pulling
out the power plug.
• It will cause electric shock or
fire due to heat generation.
Do not damage or use an
unspecified power cord.
• It will cause electric shock or
fire.
Do not modify power cord
length.
• It will cause electric shock or
fire due to heat generation.
Always plug into a
grounded outlet.
• No grounding may cause
electric shock (See
Installation Manual).
Unplug the unit if strange
sounds, odors, or smoke
come from it.
• Otherwise it may cause fire
and electric shock accident.
Do not operate with wet hands or in damp
environment.
• It will cause electric shock.
Do not allow water to run into electric parts.
• It will cause failure of machine or electric
shock.
ON

Owner's Manual 5
Safety Precautions
ENGLISH
Leave the door closed while the air
conditioner is running.
• It is not designed to cool the entire house.
Ventilate before operating air conditioner
when gas goes out.
• It may cause explosion, fire, and burn.
Never touch the metal parts of the unit
when removing the filter.
• They are sharp and may cause injury.
Do not block the inlet or outlet.
• It may cause failure of appliance or accident.
Be cautious not to touch the sharp edges
when installing.
• It may cause injury.
Turn off the main power switch when not
using it for a long time.
• Prevent accidental startup and the possibility of
injury.
■Installation

6Water Cooled Package Air Conditioner
Safety Precautions
Do not place heavy object
on the power cord and take
care so that the cord
should not be pressed.
• There is danger of fire or
electric shock.
If water enters the product,
turn off the the power switch
of the main body of appliance.
Contact service center after
taking the power-plug out
from the socket.
Do not clean the air
conditioner with water.
• Water may enter the unit and
degrade the insulation. It may
cause an electric shock.
Turn off the power and
breaker firstly when
cleansing the unit.
• Since the fan rotates at high
speed during operation, it
may cause injury.
Do not put a pet or house
plant where it will be
exposed to direct air flow.
• This could injure the pet or
plant.
Do not use this appliance for
special purposes such as
pets, foods, precision
machinery, or objects of art.
• It is an air conditioner, not a
precision refrigeration system.
Always insert the filter
securely.
Clean it every two weeks.
• Operation without filters will
cause failure.
Use a soft cloth to clean.
Do not use wax, thinner, or
a strong detergent.
• The appearance of the air
conditioner may deteriorate,
change color, or develop
surface flaws.
Do not drink water drained
from air conditioner. / Do
not direct airflow at room
occupants only.
• It contains containments and
will make you sick. / This
could damage your health.
Wax
Thinner

Owner's Manual 7
Prior to Operation
ENGLISH
Prior to Operation
1. Contact an installation specialist for installation.
2. Plug in the power plug properly.
3. Use a dedicated circuit.
4. Do not use an extension cord.
5. Do not start/stop operation by plugging/unplugging the power cord.
6. If the cord/plug is damaged, replace it with only an authorized replacement part.
1. Being exposed to direct airflow for an extended period of time could be hazardous to
your health. Do not expose occupants, pets, or plants to direct airflow for extended
periods of time.
2. Due to the possibility of oxygen deficiency, ventilate the room when used together
with stoves or other heating devices.
3. Do not use this air conditioner for non-specified special purposes (e.g. preserving
precision devices, food, pets, plants, and art objects). Such usage could damage the
items.
1. Do not touch the metal parts of the unit when removing the filter. Injuries can occur
when handling sharp metal edges.
2. Do not use water to clean inside the air conditioner. Exposure to water can destroy
the insulation, leading to possible electric shock.
3. When cleaning the unit, first make sure that the power and breaker are turned off.
The fan rotates at a very high speed during operation. There is a possibility of injury if
the unit’s power is accidentally triggered on while cleaning inner parts of the unit.
For repair and maintenance, contact your authorized service dealer.
Preparing for operation
Usage
Cleaning and maintenance
Service
Operating Temperature(unit: Fahrenheit ,°F)
INDOOR WATER
Max.
89.6
Min.
64.4
Max.
104
Min.
59
Max.
69.8
Min.
50
Max.
104
Min.
59
INDOOR WATER
COOLING MODE HEATING MODE

8Water Cooled Package Air Conditioner
Introduction
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the
air conditioner.
This symbol indicates special notes.
NOTICE
Features
Introduction
Symbols used in this Manual
Valve, Regulator
Valve, Solenoid
Box, Control
Heat exchanger
Water In
Water Out
Discharge Air
Indoor Inlet Air
Return Panel
Grille, Discharge
AKWW0243AA0 / AKWW0243YA0
AKWW0183AA0 / AKWW0183YA0
AKWW0123AA0 / AKWW0123YA0
AKWW0093AA0 / AKWW0093YA0

Owner's Manual 9
Introduction
ENGLISH
Pre-Start-up Checklist
Before energizing the unit, the following system devices must be checked:
•Is the high voltage power supply correct and in accordance with the nameplate ratings?
•Is the field wiring and circuit protection the correct size?
•Is the low voltage control circuit wiring correct per the unit wiring diagram?
•Is the piping system clean/complete and correct? (A recommendation of all system flushing o
debris from the water-to-refrigerant heat exchanger, along with air purging from the
water-to-refrigerant heat exchanger be done in accordance with the Closed-Loop Source Heat
Pump Systems Installation Guide).
•Is vibration isolation provided? (i.e. unit isolation pad, hose kits)
•Is unit serviceable? (See clearance specifications).
•Are the low/high-side pressure temperature caps secure and in place?
•Are all the unit access panels secure and in place?
•Is the thermostat in the OFF position?
•Is the water flow established and circulating through all the units?
•Is the duct work (if required) correctly sized, run, taped, insulated and weather proofed with
proper unit arrangement?
•Is the condensate line properly sized, run, trapped and pitched?
•Does the indoor blower turn freely without rubbing?
•Has all work been done in accordance with applicable local and national codes?
•Has heat transfer fluid been added in the proper mix to prevent freezing in closed system
application?
•Have the chassis isolation rails been released?
•Is there a good seal between the front air panel and the coil?

10 Water Cooled Package Air Conditioner
Introduction
Maintenance
- Preventive Maintenance
Maintenance on the unit is simplified with the following preventive suggestions: Filter
maintenance must be performed to assure proper operation of the equipment. Filters should be
inspected at least every three months, and replaced when it is evident they are dirty.
Check the contactors and relays within the control panel at least once a year. It is good practice
to check the tightness of the various wiring connections within the control panel. A strainer (60
mesh or greater) must be used on an open loop system to keep debris from entering the unit
heat exchanger and to ensure a clean system. For units on well water, it is important to check
the cleanliness of the water-to-refrigerant heat exchanger. Should it become contaminated with
dirt and scaling as a result of bad water, the heat exchanger will have to be back flushed and
cleaned with a chemical that will remove the scale. This service should be performed by an
experienced service person.
- Hazardous Chemicals
Coil cleaning agents can be either acidic or highly alkaline. Handle chemical carefully. Proper
handling should include goggles or face shield, chemical resistant gloves, boots, apron or suit as
required. For personal safety, refer to the cleaning agent manufacturers Materials Safety Data
Sheet and follow all recommended safe handling practices. Failure to follow all safety
instructions could result in death or serious injury. It should be noted that the water quality
should be checked periodically. See the following water quality table.
Scaling Calcium and magnesium(total hardness) Less than 350 ppm
pH 7 ~ 9.5
Hydrogen Sulfide Less than 1 ppm
Corrosion Sulfates Less than 25 ppm
Chlorides Less than 125 ppm
Carbon Dioxide Less than 75 ppm
Total dissolved solids(TDS) Less than 1000 ppm
Biological Growth Iron Bacteria Low
Erosion Suspended Solids Low