LG HM121M, HM141M, HM091M User Manual

P/NO : MFL62567901

www.lge.com

OWNER’S MANUAL

AIR CONDITIONER

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

TYPE :

MODEL : CH Series

ENGLISH

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2 Air-to-Water Heat Pump

Air-to-Water Heat Pump Ownerʼs 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.

Installer's Name

Purchased Date

■

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 AWHP properly. Just a little preventive care on your part can save you a great deal of time and money over the life of your product.

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.

• AWHP 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 AWHP.

• When the power cable 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

Product Introduction ..........................6

Owner's Instruction ............................8

Using Thermostat .............................23

Maintenance and Service.................26

Ownerʼs Manual 3

Safety Precaution

ENGLISH

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

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

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

WARNING

Always ground the product.

• There is a risk of electric shock.

Do not use a defective or underrated circuit breaker. Use the correctly rated breaker and fuse.

• There is risk of fire or electric shock .

Do not use a multi outlet. Always use this appliance on a dedicated circuit and breaker.

• Otherwise it can cause electric shock or fire.

For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. Do not disassemble or repair the product by yourself.

• There is risk of fire or electric shock.

Always ground the product as per the wiring diagram. Do not connect the ground wire to gas or water pipes lightening rod or telephone ground wire.

• 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 due to dust , water etc.

Use the correctly rated breaker or fuse.

• There is risk of fire or electric shock.

Do not modify or extend the power cable. If the power cable or cord has scratches or skin peeled off or deteriorated then it must be replaced.

• There is risk of fire or electric shock.

For installation, removal or reinstall , always contact the dealer or an Authorized Service Center.

• There is risk of fire, electric shock, explosion, or injury.

Do not install the product on a defective installation stand. Be sure that the installation area does not deteriorate with age.

• It may cause product to fall.

Never install the unit on a moving base or a place from where it can fall down.

• The falling unit can cause damage or injury or even death of a person.

When the product is soaked (flooded or submerged) in water , contact an Authorized Service Center for repair before using it again.

• There is risk of fire or electric shock.

Be sure to check the refrigerant to be used. Please read the label on the product.

• Incorrect refrigerant can prevent the normal operation of the unit.

Don't use a power cord, a plug or a loose socket which is damaged.

• Otherwise it may cause a fire or electrical shock.

Do not touch , operate, or repair the product with wet hands.

• There is risk of electric shock or fire.

Do not place a heater or other heating appliances near the power cable.

• There is risk of fire and electric shock.

Do not allow water to run into electric parts. Install the unit away from water sources.

• There is risk of fire, failure of the product, or electric shock.

Do not store or use or even allow flammable gas or combustibles near the product.

• There is risk of fire.

Safety Precaution

4 Air-to-Water Heat Pump

Wiring connections must be secured tightly and the cable should be routed properly so that there is no force pulling the cable from the connection terminals.

• Improper or loose connections can cause heat generation or fire.

Safely dispose off the packing materials. Like screws, nails, batteries, broken things etc after installation or service and then tear away and throw away the plastic packaging bags.

• Children may play with them and cause injury.

Make sure to check that the power device is not dirty, loose or broken and then Turn on the power.

• Dirty, loose or broken power device can cause electric shock or fire.

Do not use the product in a tightly closed space for a long time. Perform ventilation regularly.

• Oxygen deficiency could occur and hence harm your health.

Do not open the front cover or grille of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.)

• There is risk of physical injury, electric shock, or product failure.

If strange sounds, smell or smoke comes from product, immediately turn the breaker off or disconnect the power supply cable.

• There is risk of electric shock or fire.

Ventilate the product room from time to time when operating it together with a stove, or heating element etc.

• Oxygen deficiency can occur and hence harm your health.

Turn the main power off when cleaning or repairing the product.

• There is risk of electric shock.

Take care to ensure that nobody especially kids could step on or fall onto the unit.

• This could result in personal injury and product damage.

Take care to ensure that power cable could not be pulled out or damaged during operation.

• There is risk of fire or electric shock.

Do not place ANYTHING on the power cable.

• There is risk of fire or electric shock.

When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on.

• Do not use the telephone or turn switches on or off. There is risk of explosion or fire.

For antifreeze, always contact the dealer or an Authorized Service center.

• Almost the antifreeze is a toxic product.

In unit the step-up capacitor supplies high voltage electricity to the electrical components. Be sure to discharge the capacitor completely before conducting the repair work.

• An charged capacitor can cause electrical shock.

When installing the unit, use the installation kit provided with the product.

• Otherwise the unit may fall and cause severe injury.

Be sure to use only those parts which are listed in the service parts list. Never attempt to modify the equipment.

• The use of inappropriate parts can cause an electrical shock, excessive heat generation or fire.

Safety Precaution

Ownerʼs Manual 5

ENGLISH

CAUTION

Two or more people must lift and transport the product.

• Avoid personal injury.

Do not install the product where it will be exposed to sea wind (salt spray) directly.

• It may cause corrosion on the product.

Keep level even when installing the product.

• To avoid vibration or noise.

Do not install the product where the noise or hot air from the unit could damage or disturb the neighborhoods.

• It may cause a problem for your neighbors and hence dispute.

Always check for gas (refrigerant) leakage after installation or repair of product.

• Low refrigerant levels may cause failure of product.

Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer AWHP, not a precision refrigeration system.

• There is risk of damage or loss of property.

Do not block the inlet or outlet of air flow.

• It may cause product failure.

Use a soft cloth to clean. Do not use harsh detergents, solvents or splashing water etc .

• There is risk of fire, electric shock, or damage to the plastic parts of the product.

Do not step on or put anyting on the product.

•

There is risk of personal injury and failure of product.

Do not insert hands or other objects through the air inlet or outlet while the product is operating.

• There are sharp and moving parts that could cause personal injury.

Be cautious when unpacking and installing the product.

• Sharp edges could cause injury.

If the refrigerant gas leaks during the repair, do not touch the leakaing refrigerant gas.

• The refrigernat gas can cause frostbite (cold burn).

Do not tilt the unit when removing or uninstalling it.

• The condensed water inside can spill .

Do not mix air or gas other than the specified refrigerant used in the system .

• If air enters the refrigerant system, an excessively high pressure results, causing equipment damage or injury.

If the refrigerant gas leaks during the installation, ventilate the area immediately.

• Otherwise it can be harmfull for your health.

Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards.

Do not expose your skin or kids or plants to the cool or hot air draft.

• This could harm to your health.

Use a firm stool or ladder when cleaning, maintaining or repairing the product at an height.

• Be careful and avoid personal injury.

6 Air-to-Water Heat Pump

Product Introduction

1. Unit

2. Water Pipe

3. Ground wire to ground unit to prevent electrical shocks.

The shape of products can be chaged according to the model capacity and type.

Water Inlet

Water Outlet

Typical Installation Scene

Product Introduction

Ownerʼs Manual 7

ENGLISH

❊ Some functions may not be operated and displayed depending on the model.

Control Panel

1. Display panel

2. Change temperature button

3. Silent mode On/Off button

4. Operation mode selection button

5. Water heating Enable/Disable button

6. ESC button

7. Direction button (Up, Down, Left, Right)

8. Power button

9. Function setting button

10. Temperature setting mode button

11. Temperature view mode button

12. Programming button

13. Set/Clear button

3 4

5 6 7

12 13

8 Air-to-Water Heat Pump

Owner's instruction

Electric Heater STEP ONE Electric Heater STEP TWO

These icons indicate that the backup electric heater is operating.

Sanitary Water Tank heater

This icon indicates that sanitary water tank electric heater which is located inside sanitary water tank is active. The icon is not used when sanitary water tank is not installed.

Water Pump

This icon indicates that the water pump inside the unit is active.

AUXILIARY SOLAR THERMAL PUMP

This icon indicates that auxiliary solar thermal pump is active. NOTE : As installation of auxiliary solar thermal pump is not compulsory but recommendation according to field condition, this icon can be seen although no auxiliary solar thermal pump is installed.

Defrosting

This icon indicates that the defrost mode is active.

This mode is automatically operating.

Maintain lowest temperature

The purpose of this mode is maintaining the temperature to prevent damage by freezing of water pipe.

Disinfection

This icon indicates disinfecting operation is ongoing in sanitary water tank.

Compressor

This icon indicates that the Compressor is active.

Child Lock

NO FUNCTION

Central Controller

This icon indicates that the product is controlled by the central controller.

Thermostat

This icon indicates connection with thermostat.

Slight trouble

This icon indicates that slight trouble is occurred.

Heavy trouble

This icon indicates that heavy trouble is occurred.

Monitoring Information

Owner's Instruction

Ownerʼs Manual 9

Selecting Target Temperature

❊ Note

: Decrease 1°C or 2°F per one time pressing

: Increase 1°C or 2°F per one time pressing

• We can change the temperature range of each mode on installation setting mode. Please refer Function Code 11 to 15.

• Room Temperature setting is available when Remote Room Air Sensor (sold separately) is installed. Please refer Function Code 03.

• Sanitary Water Tank temperature setting is available when Sanitary Water Tank is installed.

Owner's instruction

Mode Change

Turn on the product and select operation mode.

Operation Mode

• Cooling Operation - The product yields cool water to use in under floor cooling or FCU cooling.

• Heating Operation - The product yields hot water to use in under floor heating or FCU heating.

• Weather dependent Heating Operation - In this mode, heating setpoint is automatically determined by pre-defined temperature profile.

Press Power Button to turn on the product.

Press OPER MODE Button to select each operation mode.

Cooling operation Heating operation Weather dependent

operation

Press SET TEMP Button to select each operation mode.

Adjust desired temperature by pressing Change Temperature buttons on each mode.

Room temperature Leaving Water

temperature

Sanitary Water Tank

temperature

ENGLISH

To raise the Temperature

To lower the Temperature

+ 20 hidden pages