LG Owner's Manual Models : AH Series Dear Owner Thank you for installing LG Air-to-Water Heat Pump. Your best choice guarantees you a great performance and service to make your life comfortable & pleasant. IMPORTANT • Please read this owner's manual carefully and thoroughly before installing and operating your Air-to-Water Heat Pump. • Please retain this owner's manual for future reference after reading it thoroughly.
Air-to-Water Heat Pump Owner’s Manual TABLE OF CONTENTS A. Safety Precautions.........................3 B. Product Introduction......................6 FOR YOUR RECORDS Write the model and serial numbers here: Model # C. Owner's instruction........................8 Serial # D. Using Thermostat.........................33 You can find them on a label on the side of each unit. E. Maintenance and Service ............37 Installer's Name F. Disposal Requirements................
Safety Precaution Safety Precautions WARNING This symbol indicates the possibility of death or serious injury. CAUTION This symbol indicates the possibility of injury or damage. WARNING Always ground the product. • There is a risk of electric shock. 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. Use the correctly rated breaker or fuse.
Safety Precaution Indoor/outdoor 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. 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. Make sure to check that the power device is not dirty, loose or broken and then Turn on the power.
Safety Precaution CAUTION Two or more people must lift and transport the product. Do not install the product where the noise or hot air from the outdoor unit could damage or disturb the neighborhoods. • It may cause a problem for your neighbors and hence dispute. Do not block the inlet or outlet of air flow. • It may cause product failure. Do not insert hands or other objects through the air inlet or outlet while the product is operating.
Product Introduction Product Introduction Typical Installation Scene 3 1 2 Water Inlet Water Outlet 4 5 1. Indoor unit 2. Outdoor unit 3. Refrigerant pipe and connecting cable 4. Water pipe 5. Ground wire to ground outdoor unit to prevent electrical shocks. *The shape of products can be chaged according to the model capacity and type.
Product Introduction Control Panel ENGLISH 1 2 8 3 4 9 10 11 5 6 7 12 13 1. Display panel 9. Function setting button 2. Change temperature button 3. Silent mode On/Off button 10. Temperature setting mode button 4. Operation mode selection button 11. Temperature view mode button 5. Water heating Enable/Disable button 12. Programming button 13. Set/Clear button 6. ESC button 7. Direction button (Up, Down, Left, Right) 8.
Owner's instruction Owner's instruction Monitoring Information 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. Water Pump This icon indicates that the water pump inside the indoor unit is active.
Owner's instruction Monitoring Information ENGLISH NO FUNCTION Child Lock Outdoor This icon indicates that the outdoor unit is active. Disinfection This icon indicates disinfecting operation is ongoing in sanitary water tank. Maintain lowest temperature The purpose of this mode is maintaining the temperature to prevent damage by freezing of water pipe. Defrosting This icon indicates that the defrost mode is active.
Owner's instruction Monitoring Information Heavy trouble This icon indicates that heavy trouble is occurred. Slight trouble This icon indicates that slight trouble is occurred. Thermostat This icon indicates connection with thermostat. Central Controller This icon indicates that the product is controlled by the central controller.
Owner's instruction Mode Change Turn on the product and select operation mode. OPER MODE Button to select 2 Press each operation mode. : Cooling operation : Heating operation : Weather dependent operation 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.
Owner's instruction Selecting Target Temperature You can set the proper temperature each mode. Power Button to turn on the 1 Press product. SET TEMP Button to select 2 Press each operation mode. : Room Temperature : Leaving Water Temperature : Sanitary Water Tank Temperature desired temperature by pressing 3 Adjust Change Temperature buttons on each mode.
Owner's instruction Cooling Mode In this mode, cooling operation is activated to achieve the temperature set point. Mode Selection Button to select 2 Press Cooling operation mode. : Cooling operation icon Please refer to the manual of product. desired temperature by pressing 3 Adjust Change Temperature buttons on each mode. Ex1) Setting Temperature as 18°C on Leaving Water Temperature Ex1) Setting Temperature as 20°C on Room Temperature.
Owner's instruction Heating Mode In this mode, heating operation is activated to achieve the temperature set point. Power Button to turn on 1 Press the product. Mode Selection Button to select 2 Press Heating operation mode. : Heating operation icon desired temperature by pressing 3 Adjust Change Temperature buttons. Ex) Setting Temperature as 55°C on Leaving Water Temperature. Ex) Setting Temperature as 30°C on Room Temperature.
Owner's instruction Weather-dependent Operation Power Button to turn on 1 Press the product. Mode Selection Button to select 2 Press External Control operation mode. : Weather Dependent operation icon the desired temperature level by 3 Adjust pressing Change Temperature buttons.
Owner's instruction View Temperature repeatedly View Temperature 1 Press Button to select each Temperature. : View Room Temperature : View Inlet Temperature : View Outlet Temperature : View Sanitary Water Temperature (ONLY displayed when sanitary water heating mode) : View Solar Power Temperature (ONLY displayed when sanitary water heating mode) press View Temperature button, 2 Whenever the room temperature will be displayed during 5seconds.
Owner's instruction Sanitary Water Heating Operation Button to enable ENGLISH repeatedly View 1 Press sanitary tank heating. water heating operation is operating 2 Sanitary only on enable condition. During operation, segment will be on. • This function is not used when the sanitary water tank is not installed.
Owner's instruction Silent Mode Operation Silent mode operation is that the outdoor unit works at reduced capacity so that the noise produced by the outdoor unit drops. Silent Mode Button. 1 Press This button ON or OFF silent mode. This implies that the indoor heating and cooling capacity will also drop. Beware of this when a certain level of heating or cooling is required indoors.
Owner's instruction Child Lock This function is to prevent children or other people from using controller. (The segment will be flashed) set / clear button to finish the selection. 2 Press The segment will be disappear. Child Lock, icon and 'CL' will be 3 During displayed during 3 seconds whenever entering any kind of buttons except for view temperature button and setting/clear button . release this setting, pressing 4 Tofunction Setting button until icon flash and then enter setting/clear button.
Owner's instruction Error code display When the error is occurred on indoor unit, the error code will be displayed on control panel. Slight trouble A problem is found inside the indoor unit. In most case, this trouble is concerned with sensor problems. The outdoor unit is operating under emergency mode operation condition which is configured by DIP switch No. 4 of the indoor unit PCB. Heavy trouble a problem is found inside the outdoor unit.
Owner's instruction Setting Current Time You can set current time. Ex) Changing Current Time as 'Monday / PM 10:20'. left, right button to adjust the current 2 Press day. down button to move to AM/ PM 3 Press part and adjust it. (The 'AM/ PM segment will be flashed) right button to move to 'Hour' 4 Press part. (the 'Hour' segment will be flashed) 5 Press up, down button to adjust the Hour. The current time have set as 12:00 initially.
Owner's instruction right button to move to 'Minute' part. 6 Press (the 'Minute' segment will be flashed) 7 Press up, down button to adjust the Minutes. you finish the setting, press set / clear 8 Ifbutton . exit button to exit or system will 9 Press automatically release without any input after 25 seconds.
Owner's instruction Programming : Setting Simple Reservation You can easily turn-on reservation.(ONLY enable when unit is stand-by.) Ex) Setting Simple Reservation time as '3' hours. up, down button to adjust the 2 Press reservation time. you finish the setting, press setting/cancel 3 Ifbutton to complete programming. exit button to exit or system will 4 Press automatically release without any input after 25 seconds. Owner’s Manual 23 ENGLISH programming button to enter the 1 Press Programming mode.
Owner's instruction Programming : Setting Sleep Reservation You can easily turn-off(sleep) reservation.(ONLY enable when unit is operating.) programming button to enter the 1 Press Programming mode. Repeat pressing button to select [sleep reservation]. (the segment flashing) Ex) Setting Simple Reservation time as '3' hours. up, down button to adjust the 2 Press reservation time. you finish the setting, press setting/cancel 3 Ifbutton to complete programming.
Owner's instruction Programming : Setting ON Reservation This function is able to turn-on after a setting time. to select [on reservation]. (the segment flashing) Ex) Setting On Reservation time as PM 10:20. 2 Press up, down button to adjust AM / PM. right button to move to 'Hour' 3 Press part. (the 'Hour' segment will be flashed) 4 Press up, down button to adjust the Hour. Owner’s Manual 25 ENGLISH programming button to enter the 1 Press Programming mode.
Owner's instruction right button to move to 'Minute' 5 Press part. (the 'Minute' segment will be flashed) Ex) Setting On Reservation time as PM 10:20. up, down button to adjust the 6 Press Minutes. you finish the setting, press setting/cancel 7 Ifbutton to complete programming. exit button to exit or system will 8 Press automatically release without any input after 25 seconds.
Owner's instruction Programming : Setting OFF Reservation This function is able to turn-off after a setting time. to select [off reservation]. (the segment flashing) Ex) Setting Off Reservation time as PM 11:20. 2 Press up, down button to adjust AM / PM. right button to move to 'Hour' 3 Press part. (the 'Hour' segment will be flashed) 4 Press up, down button to adjust the Hour. Owner’s Manual 27 ENGLISH programming button to enter the 1 Press Programming mode.
Owner's instruction right button to move to 'Minute' 5 Press part. (the 'Minute' segment will be flashed) up, down button to adjust the 6 Press Minutes. you finish the setting, press setting/cancel 7 Ifbutton to complete programming. exit button to exit or system will 8 Press automatically release without any input after 25 seconds.
Owner's instruction Programming : Weekly Reservation The weekly reservation is active after setting current time. to select [Weekly reservation]. (The segment will be flashed) Ex) Setting one action as below. - Day : TUE - ON Time : 11:30 AM - OFF Time : 12:30 PM left, right button to adjust the current 2 Press day. up, down button to adjust the action 3 Press number. right button to move to 'Hour' 4 Press Part on ON Time section.
Owner's instruction up, down button to adjust the Hour on 5 Press Start Time section. right button to move to 'Minute' Part on 6 Press Start time section. (The 'Minute' segment will be flashed) up, down button to adjust the Minute 7 Press on Start Time section. right button to move to 'Hour' 8 Press Part on OFF Time section.
Owner's instruction refer the process from No.5 to 9 Please No.7 for setting OFF Time. It is same method. ENGLISH you finish the setting, press setting/cancel 10 Ifbutton to complete programming. The under bar segment will be created, when it finished. refer the process from No.2 to 11 Please No.10 for setting other day weekly program. It is same method. exit button to exit or system will 12 Press automatically release without any input after 25 seconds.
Owner's instruction Programming : Holiday Reservation This function is to automatically stop the machine working on some days. programming button to enter the 1 Press Programming mode. Repeat pressing button to select [Holiday reservation]. (The segment will be flashed) Ex) Setting holiday on Friday. 2 Press left, right button to adjust the holiday. you press set / clear button after 3 When finishing the selection, the day selected will be disappear.
Using Thermostat Using Thermostat CAUTION 1. NEVER USE 230V AC Thermostat and 24V AC Thermostat at the same time. If used together, it causes short-circuit and yields power cut-off by circuit breaker. 2. Some electro-mechanical type thermostat has internal delay time to protect compressor. In that case, mode change can takes time more than user's expectation. Please read thermostat manual carefully if the product does not response quickly. 3.
Using Thermostat How to use Thermostat To find how to turn on and off, how to set target temperature, how to change operating mode, etc, please refer thermostat operating manual provided by thermostat manufacturer.
Using Thermostat Emergency Operation • Definition of terms - Error : problem which can stop system operation, and can be resumed ONLY after certificated professional's check. - Emergency mode : temporary heating operation while system met Trouble. • Objective of introducing 'Trouble' - Not like airconditioning product, Air-to-Water heat pump is generally operation in whole winter season without any system stopping.
Using Thermostat • Following features are permitted in emergency operation : - Operation On/Off - VIEW TEMP button(*) - Temperature adjust button (*) Sanitary water heating Enable / Disable (*) : Temperature measured by failed sensor is displayed as ‘- -’. (*) : Adjusted temperature is only used to control electric heater on / off condition. The product does not turn on / off according to the setting temperature at the control panel. It turns on / off according to the thermostat signal.
Maintenance and Service Maintenance and Service In order to ensure optimal availability of the unit, a number of checks and inspections on the unit and the field wiring have to be carried out at regular intervals, preferably yearly. This maintenance should be carried out by your local agreed technician. When the unit is not going.... CAUTION • If the product is not used for long time, we strongly recommend NOT TO SWITCH OFF THE POWER SUPPLY to the product.
Maintenance and Service Troubleshooting Tips! Save time and money! Check the following points before requesting repairs or service.... If the malfunction persist, please contact your dealer. Case AWHP does not operate. The room has a peculiar odor. AWHP does not operate for about 3 minutes when restart. Does not cool or heat effectively. The unit operation is noisy. Steam is raised in outdoor unit. Control panel display is faint, or no display at all.
Disposal Requirements Disposal Requirements Your product is marked with this symbol. This means that electrical and electronic products shall not be mixed with unsorted household waste. Do not try to dismantle the system yourself: the dismantling of the system, treatment of the refrigerant, of oil and other parts must be done by a qualified installer is accordance with relevant local and national legislation. Units must be treated at a specialized treatment facility for re-use, recycling and recovery.
P/No.: MFL57490701 Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.
