LG LP093HDUC1 User Manual

OWNER'S MANUAL

AIR CONDITIONER

ENGLISH ESPAÑOL FRANÇAIS

Please read this manual carefully before operating your set and retain it for future reference.

TYPE : Room Air Conditioner

P/NO : MFL67646802

Rev.01_072516

http://www.lghvac.com

www.lg.com

2 Room Air Conditioner

Packaged Terminal Air Conditioner/Heat Pump Owner's Manual

TABLE OF CONTENTS

Safety Precautions..........................3

Before Operation.............................7

Introduction ....................................8

Electrical Safety ..............................9

Installation .....................................11

Control Locations .........................13

Maintenance and Service ............19

FOR YOUR RECORDS

Write the model and serial numbers here:

Model # Serial #

You can find them on quality label and front of base pan 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 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.

Ownerʼs Manual 3

ENGLISH

Safety Precautions

WARNING

n Installation

Don't do this!

Be sure to follow the instruction.

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.

• It may cause failure and electric shock.

Be caution when unpacking and installing.

• Sharp edges may cause injury.

Do not use the power cord near flammable gas or combustibles such as gasoline, benzene, thinner, etc.

• It may cause explosion or fire.

Following instructions must be followed to prevent injury to the user and property damages.

Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications.

This symbol indicates the possibility of death or serious injury.

CAUTION

Meanings of symbols used in this manual are as shown below.

This symbol indicates the possibility of injury or damage to properties only.

Gasolin

4 Room Air Conditioner

Safety Precautions

n Operation

Do not place the power cord near a heater.

• It may cause fire and electric shock.

Do not allow water to run into electric parts.

• It will cause failure of machine or electric 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.

Ventilate the room well when using this appliance together with a stove, etc.

• Oxygen depletion could occur.

Turn off the power and breaker when cleaning the unit.

• Moving parts could cause injury.

Turn off the main power switch when not using it for a long time.

• Prevent accidental startup and the possibility of injury.

Unplug the unit if strange sounds, odors, or smoke come from it.

• It could represent a fire hazed.

Do not open the suction inlet grill of the product during operation.

• Otherwise, it may electrical shock and failure.

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 place objects on the power cord. Protect the cord from being pinched or damaged.

• There is danger of fire or electric shock.

Use a dedicated circuit for this appliance.

• An overloaded circuit is a fire hazard.

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.

Thinner

Wax

Ownerʼs Manual 5

ENGLISH

Safety Precautions

CAUTION

n Installation

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 operate with wet hands or in damp environment.

• It will cause electric shock.

Hold the plug by the end when taking it out.

• It may cause electric shock and damage.

When gas leaks, open the window for ventilation before operating the unit.

• Otherwise, it may cause an explosion and a fire.

Never touch the metal parts of the unit when removing the filter.

• They are sharp and may cause injury.

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.

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.

6 Room Air Conditioner

Safety Precautions

n Operation

Be cautious not to touch the sharp edges when installing.

• A severe cut or other injury could result.

Avoid excessive cooling and perform ventilation sometimes.

• Use the ventilation function to circulate air without cooling or heating

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 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.

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.

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 block the inlet or outlet of air flow.

• It may cause product 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 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.

Always insert the filter securely. Clean it every two weeks.

• Operation without filters will cause failure.

Do not drink water drained from the air conditioner.

• It contains every contaminant condensed from the air and could cause health issues.

Ownerʼs Manual 7

ENGLISH

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.

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.

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.

For repair and maintenance, contact your authorized service dealer.

Preparing for Operation

Usage

Cleaning and Maintenance

Service

8 Room 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

Introduction

Symbols Used in this Manual

Features

This air conditioner 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

VERTICAL AIR DEFLECTOR

(Horizontal Louver)

(Available as an option)

SLEEVE ASSEMBLY

REAR GRILLE (Aluminum Rear Grille)

Architecture Rear Grille

AIR FILTER

FRONT GRILLE (Air Intake)

INDOOR

EXPANDED METAL GRILLE

Ownerʼs Manual 9

ENGLISH

Electrical Safety

Electrical Data

Use Wall Receptacle Power Supply

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

Use 15 AMP. time delay fuse or 15 AMP. Circuit breaker.

Use 20 AMP. time delay fuse or 20 AMP. Circuit breaker. (2500W Heater ơ15AMP. 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.

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.

The shape may be different according to its model.

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.

NOTICE

208/230V~ 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. *In the case of 265V power cord doesn’t have current interrupter device.

10 Room Air Conditioner

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.

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.

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.

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.

Electrical Safety

Ownerʼs Manual 11

Installation

How to Install the Unit

• Need 2 people to lift up air conditioner, it is HEAVY.

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 attached to the sleeve or the flange of the sleeve to secure the new air conditioner.

• To avoid vibration and noise, make sure the unit is installed securely and firmly.

When installing the sleeve & Front grille, make certain there is

nothing within 21 ” back & front of sleeve & front grille, that

would interfere with heat radiation and exhaust air flow.

• 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.

Dimension of air conditioner

1,066 mm

(42")

406 mm

(16")

349 mm

(13

/4")

536 mm

(21")

Dimension of sleeve assembly (optional)

1066 mm

(42")

Insulation

Joint Gap

349 mm

/4")

(13

406 mm

(16")

ENGLISH

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 over 20” from both sleeve & grille. For assembly PTAC Model refer the diagram.

1) Take out the insulation strip from the upper packing.

2) Attach the insulation strip onto the rear upper side of the

wall sleeve.

INSULATION

COOLED AIR

INTAKE AIR

1/4" Bubble of the level

Over 20"

280 mm

(11")

WALL

Insulation Strip

Front

Sleeve

Rear

SLEEVE

HEAT

RADIATION

Over 20"

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. Remove cover by removing 3 screws from front.

4. Connect accessory power supply cord, and fix power

cord to basepan with screws.

ELECTRIC HEATER RATING

(CONFIGURATION BASED ON POWER CORD)

POWER CORD

AYUH2115 2 400/2 300 W AYUH2120 AYUH2130

VOLTAGE

230/208 230/208 230/208

HEATER

WATTS

3 300/3 200 W

HEATER MAX.

CURRENT

FUSE SIZE

10.5/11.2 A

14.5/15.5 A

20.6/22.3 A

15 A 20 A 30 A4 700/4 600 W

MIN.CIRCUIT

AMPACITY

14.5 A

19.8 A

28.3 A

5. Replace cover with screws. Tighten securely.

6. Slide the unit into the wall sleeve and secure with

4 screws through the unit flange holes.

7. Reinstall the front grille by hooking the top over the

unit top, then pushing it in at the bottom.

12 Room Air Conditioner

Control Locations

INDOOR IN

Control Locations

Manual Controls

• 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 & heating conditions. When fresh air is necessary in the room, set the ventilation lever to the OPEN position. The Ventilation door is opened and outdoor air is drawn into the room. This will reduce the cooling or heating efficiency.

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 & heating

operations.

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.

VENT

OPEN

Ventilation door

ENGLISH

• 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.

If there has a gap between rear side of product &

•

outside wall, the air splitter need to be used on unit.

Rear side of product

Air Splitter

Outside Wall

Ownerʼs Manual 13

Sleeve

Wall

Control Locations

Electronic Controls

FAN SPEED

• Every time you push this button, it cycles through the settings as follows: {High(F2)

MODE

Push this button to cycle through the modes from

COOL

- COOL

• Fan runs continually for normal cooling operation.

- ENERGY SAVER

• The fan stops when the compressor stops cooling & heating operations. Approximately every 3 minutes the fan will turn on and the unit will check the room air temperature to determine if cooling & heating is needed.

• For Energy saver operation Dip switch #2 is ON position. Refer Dipswitch setting at P.No 16

- FAN

• Fan operation without heating or cooling.

- HEAT

• Fan runs continually for normal heating operation.

Low(F1) High(F2)}

°F

FAN HEAT COOL.

POWER

• To turn ON the air conditioner, push this button. To turn OFF the air conditioner, push this button again.

• This button takes priority over any other button.

TEMPERATURE SETTING

• Use this button to automatically control the temperature of the room. The temperature can be set within a range of 54°F (12°C) to 86°F (30°C) by increments of 1°F (0.5°C).

• The setting temperature in the display.

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 setting temperature will raise 2°F after 30 minutes, and once again after another 30 minutes.

• Push Timer to cycle through the settings from 1 Hour

14 Room Air Conditioner

2 Hours ... 12 Hours maximum.

Control Locations

ENGLISH

Self-Diagnosis

FUNCTION:

If the unit has a malfunction, a green OPERATION LED located on the Display PCB used by the unit to indicate the fault codes.

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. The fault codes are the mentioned which is as follows:

• Electrical Controls

ON Normal

OFF No power / failed board

Fault Codes

CH 01 CH 02 CH 07 CH 09 CH 10 CH 34 CH 44 CH 45 CH 67

Indoor Air Thermistor Error Indoor Coil Thermistor Error

Themostat Wiring Error EEPROM Check Sum Error

Indoor Fan Error

High Pressure Switch Error

Outdoor Air Thermistor Error (PTHP Only) Outdoor Coil Thermistor Error (PTHP Only) Outdoor Fan Error

NOTICE

Function Description Display code

Over heating Protection

Freeze Protection

Remote Mode When use the remote mode operation

This feature prevents melting of unit by electrical heater located inside of the unit at the remote mode (when the unit is connected with wall thermostat).

This feature prevents freezing of room at low temperature.

°F

Owner’s Manual 15

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 reinstall 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 engineer has to check switches and ensure the switches are in the desired position.

Dip switch setting is done at factory according to product specification.

#6 #7 Unit Type OFF OFF Cooling+Electric Heater+Heat Pump OFF ON Cooling+Electric Heater

ON OFF Heat Pump Only ON ON Cooling Only

ONREMOTE

ON ON ON

OFF

LOCAL

OFF2OFF3OFF4OFF5OFF6OFF

OFF2OFF3OFF4OFF

Remote/Local Energy Saver Temperature Limit 1 Temperature Limit 2 Temperature Limit 3 PTAC/PTHP UNIT TYPE

• 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 noitarepO gnitaeH5#4#3#

Temperature Temperature Temperature

Limit #1 Limit #2 Limit #3

OFF OFF OFF 54 F (12.2 C) 86 F (30.0 C)

ON OFF OFF 56 F (13.3 C) 84 F (28.9 C)

OFF ON OFF 58 F (14.4 C) 82 F (27.8 C)

ON ON OFF 60 F (15.5 C) 80 F (26.7 C)

OFF )C 5.52( F 87)C 6.61( F 26NOFFO

ON OFF ON 64 F (17.7 C) 76 F (24.4 C)

OFF ON ON 66 F (18.9 C) 74 F (23.3 C)

ON ON ON 68 F (20.0 C) 72 F (22.2 C)

Lowest Temp. Highest Temp. Lowest Temp. Highest Temp.

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)

16 Room Air Conditioner

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 buttons 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 Maximum Length

#22 600 ft (180 m) #20 900 ft (270 m) #18 1500 ft (450 m) #16 2000 ft (610 m)

Front Desk Control Front Desk Control

FD2 FD1 DR2 DR1 MS2 MS1

ENGLISH

(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 to 24 Volt AC.

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)

NOTICE

For wiring connection of Wall Thermostat, check the Installation instruction or Installation manual’s provided by Thermostat Company.

must set it

Room Air Conditioner 17

Control Locations

INDOOR

40˚

15˚

INDOOR

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 reinstall 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.

To adjust the air direction, remove the front grille. Remove the 4 screws that fasten the discharge grille to the front grille.

Rotate the discharge grille 180°, then assembly the discharge grille to the front grille with 4 screws.

18 Room Air Conditioner

Screws

Maintenance and Service

ENGLISH

Maintenance and Service

TURN OFF THE AIR CONDITIONER AND REMOVE THE PLUG FROM THE POWER OUTLET.

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. Reinstall the filter.

INDOOR

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 front grille as described in front grille

Removal.

2. Remove the 4 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 reinstall 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 4 screws and reinstall the front cabinet.

Figure A – Vent (Left side of unit)

Figure B – Vent Filter Removal

Ownerʼs Manual 19

Maintenance and Service

Drain Cap

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.

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.

Compressor / Fan Motor

The compressor and fan motor are hermetically sealed, permanently lubricated, and require no additional oiling.

Front Grille

The Front Grille 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.

20 Room Air Conditioner

Maintenance and Service

unplugged.

completely into the outlet.

ENGLISH

Common Problems and Solutions

Troubleshooting Tips save time and money! Review the chart below first and you may not need to call for service.

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

Problem Possible Causes What To Do

Air conditioner does not start

Air conditioner does not cool/Heat as it should

The air conditioner is

The fuse is blown/circuit breaker is tripped. Power failure. If power failure occurs, turn the mode control

The current interrupter device is tripped.

Airflow is restricted. Make sure there are no curtains, blinds, or

The temp control may not be set correctly. The air filter is dirty. Clean the filter at least every 2 weeks.

The room may have been hot. When the air conditioner is first turned on,you

The room may have been cold. When the air conditioner is first turned on,you

d air is escaping. Check for open furnace floor registers and

Col

Hot air is escaping. Cooling coil have iced up. See Air Conditioner Freezing Up below.

Make sure the air conditioner plug is pushed

Check the house fuse/circuit breaker box and replace the fuse or reset the breaker.

to Off. When power is restored, wait 3 minutes to restart the air conditioner to prevent tripping of the compressor overload. Press the RESET button located on the power cord plug. If the RESET button will not stay engaged, discontinue use of the air conditioner

and contact a qualified service technician.

furniture blocking the front of the air conditioner. In COOL mode, press the " - " pad. In HEAT mode, press the " + " pad.

See the care and Maintenance section.

need to allow time for the room to cool down.

need to allow time for the room to heat up.

cold air returns. Make sure that all vents are closed to air returns.

Air conditioner freezing up

The cooling coils are iced over.

Ice may block the air flow and obstruct the air conditioner from properly cooling the room. Set the mode control at High Fan or High

Cool.

Ownerʼs Manual 21

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