LG LP090CED-Y8, LP073CD2A, LP073HD3A, LP073HD2A, LP120CED-Y8, LP093CD3A, LP123CD3A, LYC123ALE35, LP153HD3A, LP153CD5A Owner's manual

LG LP090CED-Y8, LP073CD2A, LP073HD3A, LP073HD2A, LP120CED-Y8, LP093CD3A, LP123CD3A, LYC123ALE35, LP153HD3A, LP153CD5A Owner's manual
ENGLISH
ESPAÑOL
FRANÇAIS
OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
TYPE : Room Air Conditioner
http://www.lghvac.com
www.lg.com
P/NO : 3828A20255J
Packaged Terminal Air Conditioner/Heat Pump Owner's Manual
TABLE OF CONTENTS
Safety Precautions..........................3
FOR YOUR RECORDS
Write the model and serial numbers here:
Before Operation.............................7
Model #
Serial #
Introduction ....................................8
You can find them on a label on the side of each unit.
Dealer's Name
Electrical Safety ..............................9
Date Purchased
n Staple your receipt to this page in the event you need it
to prove date of purchase or for warranty issues.
Installation .....................................11
Control Locations .........................13
Maintenance and Service ............21
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 an 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.
2 Room Air Conditioner
Safety Precautions
Safety Precautions
WARNING
This symbol indicates the possibility of death or serious injury.
CAUTION
This symbol indicates the possibility of injury or damage to properties only.
n Meanings of symbols used in this manual are as shown below.
Don't do this!
Be sure to follow the instruction.
WARNING
n Installation
Donʼt use a power cord, a
plug, or a loose socket
which is damaged.
• It may cause a fire or electrical
shock.
Always plug into a grounded
outlet.
• It may cause a fire or electrical
shock.
Do not modify or extend the
power cord length.
• It will cause electric shock or fire
due to heat generation.
Do not disassemble or
modify products.
Be caution when unpacking
and installing.
Do not use the power cord near
flammable gas or combustibles
such as gasoline, benzene,
thinner, etc.
• It may cause failure and
electric shock.
• Sharp edges may cause
injury.
• It may cause explosion or fire.
Gasolin
Ownerʼs Manual 3
ENGLISH
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness
is classified by the following indications.
Safety Precautions
n Operation
Do not place objects on the
power cord. Protect the
cord from being pinched or
damaged.
• There is danger of fire or electric
shock.
Do not place the power cord
near a heater.
• It may cause fire and electric
shock.
Use a dedicated circuit for
this appliance.
• An overloaded circuit is a fire
hazard.
Do not allow water to run
into electric parts.
• It will cause failure of machine or
electric shock.
Take the power plug out if
necessary, holding the end
of the plug and do not touch
it with wet hands.
• It may cause a fire or electrical
shock.
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.
x
Wa Thinner
Unplug the unit if strange
sounds, odors, or smoke
come from it.
Do not open the suction
inlet grill of the product
during operation.
• It could represent a fire hazed.
• Otherwise, it may electrical
shock and failure.
Ventilate the room well when
using this appliance
together with a stove, etc.
• Oxygen depletion could occur.
4 Room Air Conditioner
Turn off the power and
breaker when cleaning the
unit.
• Moving parts could cause injury.
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.
Turn off the main power
switch when not using it for
a long time.
• Prevent accidental startup and
the possibility of injury.
Safety Precautions
Do not operate or stop the
unit by inserting or pulling
out the power plug.
Hold the plug by the end
when taking it out.
• It may cause electric shock and
damage.
• It will cause electric shock or fire.
When gas leaks, open the
window for ventilation
before operating the unit.
• Otherwise, it may cause an
explosion and a fire.
Do not operate with wet
hands or in damp
environment.
• It will cause electric shock.
Never touch the metal parts
of the unit when removing
the filter.
• They are sharp and may cause
injury.
For inner cleaning, contact an Authorized Service Center or a dealer.
Do not use harsh detergent that causes corrosion or damage on the unit.
• Harsh detergent may also cause failure of product, fire, or electronic shock.
CAUTION
n Installation
Install the product so that the noise or
exhaust from the outdoor unit may not
cause any damage to the neighbors.
• Be considerate of your neighbor.
Be sure the product is level front-to-back
and side-to-side when installing.
• It may cause vibration or water leakage.
Ownerʼs Manual 5
ENGLISH
• It will cause electric shock or fire
due to heat generation.
Do not damage or use an
unspecified power cord.
Safety Precautions
n Operation
Do not put a pet or house plant
where it will be exposed to direct
air flow.
• It is not good to sit in the draft.
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.
Be cautious not to touch the
sharp edges when installing.
• A severe cut or other injury could result.
Do not block the inlet or outlet of
air flow.
• It may cause product failure.
Always insert the filter securely.
Clean it every two weeks.
• Operation without filters will cause
failure.
Avoid excessive cooling and
perform ventilation sometimes.
• Use the ventilation function to circulate
air without cooling or heating
If the liquid from the batteries gets onto your skin or
clothes, wash it well with clean water. Do not use the
remote if the batteries have leaked.
• The chemicals in batteries could cause burns or other health
hazards.
6 Room Air Conditioner
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
the air conditioner.
• It contains every contaminant
condensed from the air and could cause
health issues.
Do not insert hands or other
objects through the air inlet or
outlet during operation.
• Electrical and moving parts could cause
shock or injury.
If you eat the liquid from the batteries, brush your teeth
and see doctor. Do not use the remote if the batteries
have leaked.
• The chemicals in batteries could cause burns or other health
hazards.
Before Operation
Before Operation
1. Contact an installation specialist for installation.
This is NOT a do-it-yourself project.
2. Plug in the power plug properly.
3. Use a dedicated circuit.
4. Do not use an extension cord. Consult a professional installer or electrician.
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.
Usage
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. In other words, don't sit in the draft.
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.
Cleaning and Maintenance
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 unitʼs power is accidentally triggered on while
cleaning inner parts of the unit.
Service
For repair and maintenance, contact your authorized service dealer.
Ownerʼs Manual 7
ENGLISH
Preparing for Operation
Introduction
Introduction
Symbols Used in this Manual
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to
the air conditioner.
NOTICE This symbol indicates special notes.
Features
This appliance should be installed in accordance with the National Electric Code.
Expanded Metal Grille Should be applied for better performance in PTAC and PTHP Units.
For Installation purpose and better appearance Aluminium or Architectural grille can be applied in
PTAC and PTHP Units.
THE SLEEVE AND THE REAR GRILLE
(Available as an option)
VERTICAL AIR DEFLECTOR
(Horizontal Louver)
SLEEVE ASSEMBLY
(Including Aluminum Rear Grille)
REAR GRILLE
(Aluminum Rear Grille)
AIR FILTER
R
O
O
D
N
I
INLET GRILLE
(Air Intake)
EXPANDED METAL GRILLE
(For Superior Performance)
LG PTAC and PTHP test condition
is recommended with expanded
metal grille
8 Room Air Conditioner
Electrical Safety
Electrical Safety
115V~
230V~
265V~ Power cord may include a current
interrupter device. A test and reset
button is provided on the plug case. The
device should be tested on a periodic
basis by first pressing the TEST button
and then the RESET button. If the TEST
button does not trip or if the RESET
button will not stay engaged,
discontinue use of the air conditioner
and contact a qualified service
technician.
NOTICE
The shape may be different according to its model.
Use Wall Receptacle
Standard 208/230V, 3-wire
grounding receptacle rated 15A
Standard 208/230V, 3-wire
grounding receptacle rated 20A
Standard 208/230V, 3-wire
grounding receptacle rated 30A
Standard 265V grounding
receptacle rated 20A
Standard 265V grounding
receptacle rated 30A
Power Supply
Use 15 AMP. time
delay fuse or 15 AMP.
Circuit breaker.
Use 20 AMP. time
delay fuse or 20 AMP.
Circuit breaker.
(2500W Heater →15AMP.
Circuit Breaker)
Use 30 AMP. time
delay fuse or 30 AMP.
Circuit breaker.
Use 20 AMP. time
delay fuse or 20 AMP.
Circuit breaker.
Use 30 AMP. time
delay fuse or 30 AMP.
Circuit breaker.
NOTICE
DO NOT USE AN EXTENSION CORD on 230,
208, and 208/230, 265 Volt units.
All wiring should be made in accordance with local
electrical codes and regulations.
Aluminum house wiring may pose special
problems. Consult a qualified electrician.
Never push the test button during
operation
Otherwise this plug can damaged.
This device contains chemicals, including
lead, known to the State of California to
cause cancer, birth defects, or other
reproductive harm.
Wash hands after handling.
Do not remove, modify, or immerse this plug.
If this device trips, the cause should be
corrected before further use.
The conductors inside this cord are
surrounded by shields, which monitor
leakage current.
These shields are not grounded.
Periodically examine the cord for any
damage. Do not use this product in the
event the shields become exposed.
Avoid shock hazard! This unit cannot
be serviced. Opening the tamperresistant, sealed portion of the unit
voids all warranties and performance
claims. This unit is not intended to be
an ON/OFF switch.
Ownerʼs Manual 9
ENGLISH
Electrical Data
Electrical Safety
Electrical Safety
IMPORTANT
(PLEASE READ CAREFULLY)
FOR THE USER'S PERSONAL SAFETY, THIS
APPLIANCE MUST BE PROPERLY GROUNDED
The power cord of this appliance is equipped with a
three-prong (grounding) plug. Use this with a standard
three-slot (grounding) wall power outlet to minimize
the hazard of electric shock. The customer should
have the wall receptacle and circuit checked by a
qualified electrician to make sure the receptacle is
properly grounded.
Attaching the adapter ground terminal to the wall
receptacle cover screw does not ground the
appliance unless the cover screw is metal, and not
insulated, and the wall receptacle is grounded
through the house wiring. The customer should
have the circuit checked by a qualified electrician to
make sure the receptacle is properly grounded.
Disconnect the power cord from the adapter, using
one hand on each. Otherwise, the adapter ground
terminal might break. DO NOT USE the appliance with
a broken adapter plug.
DO NOT CUT OR REMOVE THE THIRD (GROUND)
PRONG FROM THE POWER PLUG.
A. SITUATIONS WHEN THE APPLIANCE WILL BE
DISCONNECTED OCCASIONALLY
Because of potential safety hazards, we strongly
discourage the use of an adapter plug. However, if
you wish to use an adapter, a TEMPORARY
CONNECTION may be made. Use UL-listed adapter,
available from most local hardware stores.
The large slot in the adapter must be aligned with the
large slot in the receptacle to assure a proper polarity
connection.
B. SITUATIONS WHEN THE APPLIANCE WILL BE
DISCONNECTED OFTEN
Do not use an adapter plug in these situations.
Unplugging the power cord frequently can lead to an
eventual breakage of the ground terminal. The wall
power outlet should be replaced by a three-slot
(grounding) outlet instead.
USE OF EXTENSION CORDS
Because of potential safety hazards, we strongly
discourage the use of an extension cord. However, if
you wish to use an extension cord, use a CSA
certified/UL-listed 3-wire (grounding) extension cord.
10 Room Air Conditioner
Installation
Installation
Dimension of air conditioner
• There are sharp edges that can cause serious cuts.
• If the unit is to be installed close to the seaside, it needs
additional treatment on the heat exchanger.
• When lifting the air conditioner, it is HEAVY.
Use 2 people to lift.
For existing sleeve, you should measure the wall sleeve
dimensions.
You can install the new air conditioner according to these
installation instructions to achieve the best performence. All
wall sleeves used to mount the new air conditioner must be in
good structural condition and have the rear grille that securely
attaches to the sleeve or the flange of the sleeve to secure the
new air conditioner.
1,066 mm
(42")
406 mm
(16")
318 mm
(12 1/2")
505 mm
(20")
Dimension of sleeve assembly (optional)
• To avoid vibration and noise, make sure the unit is installed
securely and firmly.
1066 mm
(42")
When installing the sleeve & Front grille, make certain there is
nothing within 20” back & front of sleeve & front grille, that
would interfere with heat radiation and exhaust air flow.
Insulation
• Before installation, Check the insulation on the inner side of
the sleeve. If there is no insulation, place the insulation.
• Check the bottom corner's joint gap of the sleeve, If there is,
fill the gap with putty.
NOTICE To maintain the best performance
of LG PTAC
1. An insulation strip must be attached. The
insulation strip is provided with the box.
2. After assembly of sleeve & Front grille, the
gap should be 20” from both sleeve &
grille. For assembly PTAC Model refer the
diagram given below.
1) Take out the insulation strip from the upper packing.
2) Attach the insulation strip onto the rear upper side of the
wall sleeve.
3) If anyone would like to improve unit energy efficiency, it is
recommended the change of outside grille for an unit
protection and an addition of a plastic rear grille. (This is
optional.)
406 mm
(16")
Joint Gap
318 mm
(12 1/2")
INSULATION
WALL
COOLED
AIR
SLEEVE
HEAT
RADIATION
INTAKE
AIR
1/4" Bubble
of the level
Over 20"
280 mm
(11")
WALL
Front
Over 20"
Insulation Strip
Sleeve
Rear
Ownerʼs Manual 11
ENGLISH
How to Install the Unit
Installation
• UNIT INSTALLATION
1. Remove the shipping screw from the ventilation door.
2. Remove the front gille by pulling it out at the bottom
to release it, then lift it up along the unit top front.
3. Slide the unit into the wall sleeve and secure with
6 screws through the unit flange holes.
4. Reinstall the front grille by hooking the top over the
unit top, then pushing it in at the bottom.
• Failure to follow this caution may result in
equipment
damage or improper operation.
• Blocking indoor(curtain or bedclothes etc.) or
outdoor discharge air could cause premature failure
of unit.
12 Room Air Conditioner
Control Locations
Control Locations
ENGLISH
Manual Controls
TEMPERATURE CONTROL
Set the Thermostat control to the desired
temperature mark 5 (the mid-point is a good
starting position). If the room temperature is not
satisfactory after a reasonable time, adjust the
control to a cooler or warmer setting, as
appropriate.
OPERATION MODE SELECTOR
OFF
Turns air conditioner off.
LOW FAN
Low speed fan operation without cooling.
HIGH FAN
High speed fan operation without cooling.
LOW COOL Cooling with the low speed fan operation.
HIGH COOL Cooling with the high speed fan
operation.
LOW HEAT Heating with the low speed fan operation.
HIGH HEAT Heating with the high speed fan
operation.
• VENTILATION
The ventilation lever is located to the lower left side
of the unit.
The ventilation lever must be in the CLOSE position in
order to maintain the best cooling conditions.
When fresh air is necessary in the room, set the
ventilation lever to the OPEN position.
The damper is opened and outdoor air is drawn
into the room.
This will reduce the cooling or heating efficiency.
VENT !
VENT ! CLOSE
OPEN
When the air conditioner has been running and is
turned off or set to the fan position, wait at least 3
minutes before resetting to the cooling operation.
Note: A slight heat odor may come from the unit
when first switching to HEAT after the
cooling season is over.
This odor, caused by fine dust particles on
the heater, will disappear quickly.
This is harmless.
Ownerʼs Manual 13
Control Locations
Electronic Controls
The controls will look like one of the following.
FAN SPEED
• Every time you push this button, it cycles through the settings as follows:
{High(F2) ’ Low(F1) ’ High(F2) ’ Low(F1)}
E/SAVE
'F
HEAT
FAN
HIGH
COOL
LOW
TIMER
MODE
FAN
TIMER
POWER
TEMP
ON
OFF
• To turn the air conditioner ON, push this button.
To turn the air conditioner OFF, push the button
again.
• This button takes priority over any other button.
MODE
- Push this button to cycle through the modes from COOL ’ FAN
’ HEAT’ COOL.
- COOL
• Fan runs continually for normal cooling operation.
- ENERGY SAVER
• The fan stops when the compressor stops cooling.
Approximately every 3 minutes the fan will turn on and the unit
will check the room air temperature to determine if cooling is
needed.
TEMPERATURE SETTING
• Use this button to automatically control the
temperature of the room.
The temperature can be set within a range of 54
F(12C) to 86 F(30C) by increments
of 2 F(1C).
• The setting appears in the display.
- FAN
• Fan operation without heating or cooling.
- HEAT
• Fan runs continually for normal heating operation.
TIMER
- SHUT-OFF TIME
• You will usually use shut-off time while you sleep.
• If unit is running, use Timer to set number of hours until shut-off.
• For your sleeping comfort, once Time is set, the Temperature setting will raise 2 F(1C) after 30 minutes, and once
again after another 30 minutes.
• Push Timer to cycle through the settings from 1 Hour ’ 2 Hours ’ ... ’ 12 Hours maximum.
14 Room Air Conditioner
Control Locations
Self-Diagnosis
USE:
If the customer has to register a complaint to the service center, he can be very clear about registering
the complaint that what is happening & by referring the user's manual the customer can clearly define
the problem.
So that the engineer should go fully prepared with the prescribed tools to be used regarding that
problem. It also keeps the customer aware about the unit.
Here are some of the problems defined below for which the LED indicates by flashing number of times
the error has been recorded against it.
The errors are the mentioned which is as follows:
• Electrical Controls
ON
OFF
Fault Codes
CH 01
CH 02
CH 03
CH 04
CH 05
CH 06
CH 07
CH 09
Normal
No power / failed board
Indoor Air Thermistor Error
Indoor Coil Thermistor Error
Outdoor Air Thermistor Error (PTHP Only)
Outdoor Coil Thermistor Error (PTHP Only)
Mode Error
Set point Error
Bad Thermistor Wiring
Pressure Switch Error
• Manual Controls
ON
OFF
Fault Codes
1
2
3
4
5
6
7
LED Flash Rate
Normal
No power / failed board
Indoor Air Thermistor Error
Indoor Coil Thermistor Error
Outdoor Air Thermistor Error (PTHP Only)
Outdoor Coil Thermistor Error (PTHP Only)
Mode Error
Set point Error
Bad Thermistor Wiring
0.25 sec On per flash, 0.25 sec OFF between flashes,
2.00 sec OFF between codes.
Ownerʼs Manual 15
ENGLISH
FUNCTION:
If the unit has a malfunction, a green OPERATION LED located on the Display PCB used by the unit to
indicate the errors.
Control Locations
Additional Controls
• REMOVING THE FRONT GRILLE
Additional controls are available after
removing the front grille and option
cover of control box.
To remove the front grille, pull out the
bottom of front grille and then lift up.
To replace the front grille, place the tabs
over the top of the unit and push the
bottom of front grille until the clips snap
into place.
• ADDITIONAL CONTROLS
The additional controls are located behind the option cover of control box. The standard settings will be in
the OFF position. The authorized servicer has to check switches and ensure the switches are in the desired
position. REMOTE ON ON ON ON
ON
OFF
LOCAL OFF OFF OFF OFF
1
2
3
4
5
Remote/Local
Energy Saver
LOCAL OFF
1 Limit 21
Temperature
Temperature Limit 2
Temperature Limit 3
PTAC/PTHP
UNIT TYPE
OFF
3
OFF
4
OFF
6
OFF
7
OFF
5
• TEMPERATURE LIMITING
Temperature Limiting can save money by limiting the lowest temperature for cooling and the highest
temperature for heating. The temperature limiting is controlled by switches #3 - #5.
This temperature limiting is not available with the Remote Wall Thermostat.
Cooling Operation
Heating Operation
#3
Temperature
Limit 1
#4
Temperature
Limit 2
#5
Temperature
Limit 3
Lowest Temp.
Highest Temp.
Lowest Temp.
Highest Temp.
OFF
OFF
OFF
54° F (12.2° C)
86° F (30.0° C)
54° F (12.2° C)
86° F (30.0° C)
ON
OFF
OFF
56° F (13.3° C)
86° F (30.0° C)
54° F (12.2° C)
84° F (28.9° C)
OFF
ON
OFF
58° F (14.4° C)
86° F (30.0° C)
54° F (12.2° C)
82° F (27.8° C)
ON
ON
OFF
60° F (15.5° C)
86° F (30.0° C)
54° F (12.2° C)
80° F (26.7° C)
OFF
OFF
ON
62° F (16.6° C)
86° F (30.0° C)
54° F (12.2° C)
78° F (25.5° C)
ON
OFF
ON
64° F (17.7° C)
86° F (30.0° C)
54° F (12.2° C)
76° F (24.4° C)
OFF
ON
ON
66° F (18.9° C)
86° F (30.0° C)
54° F (12.2° C)
74° F (23.3° C)
ON
ON
ON
68° F (20.0° C)
86° F (30.0° C)
54° F (12.2° C)
72° F (22.2° C)
#6
OFF
OFF
#7
OFF
ON
Unit Type
Cooling~Electric Heater~Heat Pump
Cooling~Electric Heater
ON
ON
OFF
ON
Heat Pump Only
Cooling Only
16 Room Air Conditioner
Control Locations
• REMOVING THE FRONT GRILLE
ENGLISH
Additional controls are available after removing the
front grille and option cover of control box.
To remove the front grille, pull out the bottom of front
grille and then lift up.
To replace the front grille, place the tabs over the top
of the unit and push the bottom of front grille until the
clips snap into place.
• ADDITIONAL CONTROLS
The additional controls are located behind the option cover of control box. The standard settings will be in
the OFF position. The authorized service man has to check switches and ensure the switches are in the
desired position.
REMOTE ON
ON
ON
ON
ON
OFF
LOCAL~OFF~ OFF~ OFF~ OFF~
1
2
3
4
5
Remote/Local
LOCAL~
Energy OFF~
Saver OFF~
1
2 Limit31
Temperature
Temperature Limit 2
Temperature Limit 3
OFF~ OFF~
4
5
• TEMPERATURE LIMITING
Temperature Limiting can save money by limiting the lowest temperature for cooling and the highest
temperature for heating. The temperature limiting is controlled by dip switch #3 - #5.
This temperature limiting is not available with the Remote Wall Thermostat.
#3
Temperature
Limit #1
OFF
ON
OFF
ON
OFF
ON
OFF
ON
#4
Temperature
Limit #2
OFF
OFF
ON
ON
OFF
OFF
ON
ON
#5
Temperature
Limit #3
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Cooling Operation
Heating Operation
Lowest Temp. Highest Temp. Lowest Temp. Highest Temp.
54°F (12.2°C)
56°F (13.3°C)
58°F (14.4°C)
60°F (15.5°C)
62°F (16.6°C)
64°F (17.7°C)
66°F (18.9°C)
68°F (20.0°C)
86°F (30.0°C)
86°F (30.0°C)
86°F (30.0°C)
86°F (30.0°C)
86°F (30.0°C)
86°F (30.0°C)
86°F (30.0°C)
86°F (30.0°C)
54°F (12.2°C)
54°F (12.2°C)
54°F (12.2°C)
54°F (12.2°C)
54°F (12.2°C)
54°F (12.2°C)
54°F (12.2°C)
54°F (12.2°C)
86°F (30.0°C)
84°F (28.9°C)
82°F (27.8°C)
80°F (26.7°C)
78°F (25.5°C)
76°F (24.4°C)
74°F (23.3°C)
72°F (22.2°C)
Ownerʼs Manual 17
Control Locations
• REMOTE/LOCAL CONTROL
When remote/local switch #1 is on, it allow the unit to operate by the Remote Wall Thermostat.
The unit control by knobs are not available.
• ENERGY SAVER
The energy saver switch #2 is on. This switch is set at cycle fan to provide continuous fan operation in cool
or heat modes. When the switch is off the continuous fan allows continuous circulation of room air and
make the more balanced temperature of the room. When the switch is on, the fan is on or off with the
compressor or with the heater.
• FRONT DESK CONTROL
When the pair wire is connected to the connector FD2 and FD1, the unit can be turned ON or OFF with a
switch located at the Front Desk Control panel. When the front desk switch is ON, the fan operates
according to the setting without working compressor and heater. When the front desk switch is OFF, the unit
can operate according to the setting of controls.
Wire # AWG
#22
#20
#18
#16
Maximum Length
600 ft (180 m)
900 ft (270 m)
1500 ft (450 m)
2000 ft (610 m)
Note: The following figures show wiring
schematics for heat pump and straight cool
units with electric heat, respectively.
Wiring Schematic for
Remote Heat Pump
Motion Sensor
Motion Sensor
Door Switch
Door Switch
Front Desk Control
Front Desk Control
FD2 FD1 DR2 DR1 MS2 MS1
(Molex Housing Spec 396-06V)
• REMOTE WALL THERMOSTAT
When the wires are connected, the unit will be controlled
by a remote wall thermostat.
The thermostat connections supply the 24 Volt AC. When
you install the digital/electronic thermostat, you must set it
to 24 Volt AC. See the installation Instruction in this manual
for the Remote Wall Thermostat.
24 Volt-N
24 Volt-L
Compressor
Heater
Reversing Valve
High Fan
Low Fan
GL GH O
W
Y
R
C
(Molex Housing Spec 396-07V)
18 Room Air Conditioner
Wiring Schematic for
Straight Cool Unit.
Control Locations
• REMOTE/LOCAL CONTROL
• ENERGY SAVER
The energy saver switch #2 is on. This switch is set at continuous fan to provide continuous fan operation in
cool or heat modes. When the switch is off the continuous fan allows continuous circulation of room air and
make the more balanced temperature of the room. When the switch is on the fan is on or off with the
compressor or with the heater.
• FRONT DESK CONTROL
When the pair wire is connected to the connector LOand LI, the unit can be turned ON or OFF with a switch
located at the Front Desk Control panel. When the front desk switch is ON, the fan operate according to the
condition of setting without working compressor and heater. When the front desk switch is OFF, the unit can
operate according to the setting of controls.
Wire # AWG
#22
#20
#18
#16
Maximum Length
600ft(180m)
900ft(270m)
1500ft(450m)
2000ft(610m)
Note:The following figures show
wiring schematics for heat pump
and straight cool units with electric
heat, respectively.
Wiring Schematic for!
Remote Heat Pump
LO LI GL GH O
W
Y
R
C
Front Desk Switch
• REMOTE WALL THERMOSTAT
When the wires are connected, the unit will be
controlled by a remote wall thermostat.
The thermostat connections supply the 24 Volt AC.
When you install the digital / electronic thermostat,
you must set it to the 24 Volt AC. See the installation
Instruction in this manual for the Remote Wall
Thermostat.
Wiring Schematic for!
Straight Cool Unit.
24 Volt-N
24 Volt-L
Compressor
Heater
Reversing Valve
High Fan
Low Fan
LO LI GL GH O
W
Y
R
C
(Molex Housing Spec 396-09V)
Ownerʼs Manual 19
ENGLISH
When remote/local switch #1 is on, it allow the unit to operate by the control of Remote Wall Thermostat.
The unit control by knobs are not available.
Control Locations
Disassembly Instructions
- Before the following disassembly, POWER SWITCH is set to OFF and disconnected the power
cord.
1. Remove the front grille.
2. To remove the front grille, pull out the bottom
of the front grille and then lift up.
Re-install the component by referring to the
removal procedure.
3. To replace the front grille, place the tabs over
the top of the unit and push the bottom of front
grille until the clips snap into place.
• This Room Air Conditioner (PTAC) discharges
air from the top of the unit through reversible, 2position discharge grille louvers. The unit is
shipped from the factory with the discharge grille
louvers at an angle of 40˚ off vertical. In an
alternate position the louvers will be at an angle
of 15˚ off vertical.
40˚
15˚
Screws
To adjust the air direction, remove the front
grille. Remove the 4 screws that fasten the
discharge grille to the front grille.
Flip the discharge grille 180°, then reattach the
discharge grille to the front grille with 4 screws.
20 Room Air Conditioner
Maintenance and Service
Maintenance and Service
Air Filter Cleaning
The air filter should be checked at least twice a month to see if cleaning is necessary.
Trapped particles in the filter will build up and block the airflow. This reduces the cooling
capacity and also causes an accumulation of frost on the cooling coils.
If the filter becomes turn or damaged you should replace
immediately. Replacement filters are available from your
salesperson, dealer, and the authorized customer service
centers.
1. Remove the air filter from the front grille assembly by
pulling the air filter up slightly.
2. Wash the filter using lukewarm water below 104° F(40°C).
3. Gently shake the excess water from the filter completely.
Replace the filter.
Vent Filter
Before cleaning the vent filter, disconnect power to the
unit by unplugging the power cord at the wall outlet or
subbase, or disconnect power at the fuse box or circuit
breaker. If unit is operated with vent door closed, the
vent filter does not need to be cleaned.
1. Remove the cabinet front as described in Front
Removal.
2. Remove the six screws securing the chassis to the
wall sleeve with a Phillips-Head screwdriver.
3. Slide the chassis out of the wall sleeve far enough so
that the vent filter is accessible as shown in Figure A.
4. Remove the vent filter by unscrewing the two screws
at the top of the filter and gently pulling the filter away
from the partition panel. Refer to Figure B.
5. Clean and replace the filter by reattaching the hook
to the bottom of the vent door and replacing the two
screws, slide the chassis back into the wall sleeve,
secure it in place with six screws and reinstall the
front cabinet.
Figure A – Vent (Left side of unit)
Figure B – Vent Filter Removal
Ownerʼs Manual 21
ENGLISH
TURN THE AIR CONDITIONER OFF AND REMOVE THE PLUG FROM THE POWER OUTLET.
Maintenance and Service
Drainage
The base pan may overflow due to high humidity.
To drain the excess water, remove the drain cap
from the back of the unit.
Drain Cap
Chassis
The chassis must be cleaned every four months or more often as the atmospheric conditions
require. Use water and detergent to clean the basepan, center partition and coils. The use of harsh
cleaning materials may cause a deterioration of the coil fins or endplates. Do not use a high
pressure cleaner as it could cause severe damage to the PTAC fins and coils. A hose is okay to use
to clean the coils, but make sure to cover the control with a blanket or plastic bag to keep it dry.
Corrosion Resistant units operating in harsh atmospheric conditions must be removed from the
sleeve and cleaned every 3 months in the same manner as above.
Compressor / Fan Motor
The compressor and fan motor are hermetically sealed, permanently lubricated, and require no
additional oiling.
Cabinet Front
The cabinet front and discharge air grille can be cleaned with a mild soap or detergent. Under no
circumstances should hydrocarbon based cleaners (e.g. acetone, benzene, naphtha, gasoline, etc.)
be used to clean the front or air grilles.
Use care when cleaning the control area. Do not use an excessively wet cleaning cloth.
Corrosion Resistant Models
Corrosion resistant models subjected to harsh seacoast environments must be removed from the
wall sleeve and completely flushed with clean water at least four times a year. The basepan, center
partition, condenser end plates, and the condenser itself should be sprayed with clean, fresh water.
Leaving the unit in the sleeve and simply spraying the outdoor grille is not sufficient.
22 Room Air Conditioner
Maintenance and Service
Common Problems and Solutions
Normal Operation
• You may hear a pinging noise caused by water being picked up and thrown by the slinger fan against the
condenser on rainy days or when the humidity is high. This design feature helps remove moisture and
improve efficiency.
• You may hear the thermostat click when the compressor cycles on and off.
• Water will collect in the base pan during high humidity or on rainy days. The water may overflow and drip
from the outdoor side of the unit.
• The fan may run even when the compressor does not.
Troubleshooting
COMPLAINT
Fan motor
will not run.
CAUSE
REMEDY
n No power
• Check voltage at outlet. Correct if none.
n Power supply cord
• Check voltage to rotary switch. If none, check power
supply cord. Replace cord if circuit is open.
n Rotary switch
• Check switch continuity. Refer to wiring diagram for
terminal identification. Replace switch if defective.
n Wire disconnected or
connection loose
• Connect wire. Refer to wiring diagram for terminal
identification. Repair or replace loose terminal.
n Capacitor (Discharge
capacitor before testing)
• Test capacitor.
Replace if not within ±10% of manufacturer's rating.
Replace if shorted, open, or damaged.
n Will not rotate
• Fan blade hitting shroud or cross flow fan hitting
scroll. Realign assembly.
• Units using slinger ring condenser fans must have 1/4
to 5/16 inch clearance to the base. If it is hitting the
base, shim up the bottom of the fan motor with
mounting screw(s).
• Check fan motor bearings; if motor shaft will not
rotate, replace the motor.
n Revolves on overload
Fan motor runs
intermittently.
• Check voltage. See limits on this page. If not within
limits, call an electrician.
• Test capacitor.
Check bearings. Does the fan blade rotate freely?
If not, replace fan motor.
• Pay attention to any change from high speed to low
speed. If the speed does not change, replace the
motor.
Ownerʼs Manual 23
ENGLISH
Troubleshooting Tips save time and money!
Review the chart below first and you may not need to call for service.
Maintenance and Service
COMPLAINT
Fan motor noise.
CAUSE
REMEDY
n Grommets
• Check grommets; if worn or missing, replace them.
n Fan
• If cracked, out of balance, or partially missing,
replace it.
n Loose set screw
• Tighten it.
n Worn bearings
• If knocking sounds continue when running or loose,
replace the motor. If the motor hums or noise appears
to be internal while running, replace motor.
n Voltage
• Check voltage. See the voltage limits. If not within
limits, call an electrician.
n Wiring
• Check the wire connections, if loose, repair or
replace the terminal. If wires are off, refer to wiring
diagram for identification, and replace. Check wire
locations. If not per wiring diagram, correct.
n Rotary
• Check for continuity, refer to the wiring diagram for
terminal identification. Replace the switch if circuit is
open.
n Thermostat
• Check the position of knob If not at the coldest
setting, advance the knob to this setting and restart
unit.
Check continuity of the thermostat. Replace
thermostat if circuit is open.
n Capacitor (Discharge
capacitor before servicing)
• Check the capacitor.
Replace if not within ±10% of manufacturer's rating.
Replace if shorted, open, or damaged.
n Compressor
• Check the compressor for open circuit or ground. If
open or grounded, replace the compressor.
n Overload
• Check the compressor overload, if externally
mounted. Replace if open. (If the compressor
temperature is high, remove the overload, cool it,
and retest.)
n Pressure Switch
• Check continuity of the pressure switch. Replace the
pressure switch if circuit is open.
Compressor will
not run, but fan
motor runs.
24 Room Air Conditioner
Maintenance and Service
COMPLAINT
REMEDY
n Voltage
• Check the voltage. See the limits on the preceding
page. If not within limits, call an electrician.
n Overload
• Check overload, if externally mounted.
Replace if open. (If the compressor temperature is
high, remove the overload, cool, and retest.)
n Fan motor
• If not running, determine the cause. Replace if
required.
n Condenser air flow
restriction
• Remove the cabinet. inspect the interior surface of
the condenser; if restricted, clean carefully with a
vacuum cleaner (do not damage fins) or brush. Clean
the interior base before reassembling.
n Condenser fins
(damaged)
• If condenser fins are closed over a large area on the
coil surface, head pressures will increase, causing the
compressor to cycle. Straighten the fins or replace the
coil.
n Capacitor
• Test capacitor.
n Wiring
• Check the terminals. If loose, repair or replace.
n Refrigerating system
• Check the system for a restriction.
n Air filter
• If restricted, clean or replace.
n Exhaust damper door
• Close if open.
n Unit undersized
Insufficient
cooling or heating.
• Determine if the unit is properly sized for the area to
be cooled.
n Block at indoor (curtain or
bedclothes etc.) or
outdoor discharge air.
• Remove it and make certain there is nothing within
20” back and front of sleeve & front grille.
n Cross flow fan
• Check the set screw or clamp. If loose or missing,
correct. If the blower or fan is hitting air guide,
rearrange the air handling parts.
n Copper tubing
• Carefully rearrange tubing not to contact, compressor,
shroud, and barrier.
Excessive noise.
ROOM AIR CONDITIONER VOLTAGE LIMITS
NAME PLATE RATING
MINIMUM
MAXIMUM
208/230 V
187 V
253 V
265 V
239 V
292 V
Ownerʼs Manual 25
ENGLISH
Compressor
cycles on
overload.
CAUSE
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