TABLE OF CONTENTS Safety Precautions .............................3 Product Introduction ..........................6
FOR YOUR RECORDS Write the model and serial numbers here:
Owner's Instruction ............................8
Using Thermostat .............................25
You can find them on a label on the side of each unit.
Maintenance and Service.................28
Installer's Name Purchased Date n 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.
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.
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. 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.
• There is risk of fire or electric shock.
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.
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.
Do not use a defective or underrated circuit breaker. Use the correctly rated breaker and fuse. • 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.
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.
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. 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 use a multi outlet. Always use this appliance on a dedicated circuit and breaker. • 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. For installation, removal or reinstall , always contact the dealer or an Authorized Service Center. • There is risk of fire, electric shock, explosion, or injury. 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.
Do not touch , operate, or repair the product with wet hands. • There is risk of electric shock or fire.
Safety Precaution 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.
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.
• Improper or loose connections can cause heat generation or fire.
• Children may play with them and cause injury.
• Dirty, loose or broken power device can cause electric shock or fire.
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.
When installing the unit, use the installation kit provided with the product.
Be sure to use only those parts which are listed in the service parts list. Never attempt to modify the equipment.
• An charged capacitor can cause electrical shock.
• Otherwise the unit may fall and cause severe injury.
• The use of inappropriate parts can cause an electrical shock, excessive heat generation or fire.
Do not use the product in a tightly closed space for a long time. Perform ventilation regularly.
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.)
If strange sounds, smell or smoke comes from product, immediately turn the breaker off or disconnect the power supply cable.
• Oxygen deficiency could occur and hence harm your health. 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. Take care to ensure that power cable could not be pulled out or damaged during operation. • Almost the antifreeze is a toxic product.
If you touch the pipe or internal parts, you should be wear protection or wait time to return to normal temperature.
• Otherwise , it may cause burns or frostbite, personal injury.
• There is risk of physical injury, electric shock, or product failure. Turn the main power off when cleaning or repairing the product. • There is risk of electric shock.
Do not touch any electric part with wet hands. you should be cut power before touching electric part. • There is risk of electric shock or fire.
Do not touch leaked refrigerant directly.
• There is risk of frostbite.
Do not heated to a temperature of more than provided by the product. • Otherwise, it may cause fire or damage of product.
4 Air-to-Water Heat Pump
• There is risk of electric shock or fire.
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. Do not touch refrigerant pipe and water pipe or any internal parts while the unit is operating or immediately after operation. • There is risk of burns or frostbite, personal injury. Make sure to install mixing valve (field supply). The mixing valve is setting the water temperature. The hot water temperature maximum values shall be selected according to the applicable legislation.
Name Display Change Temperature Button Water Heating Enable / Disable Button Power Button Operation Mode Selection Button Silent Mode On / Off Button Temperature Setting Mode Button Temperature View Mode Button Function Setting Button Programming Button Direction Button (Up, Down, Left, Right) Set / Clear button ESC Button
Owner's Instruction Monitoring Information 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.
Mode Change Turn on the product and select operation mode.
Press power button to turn on the product.
Press OPER MODE button to select each operation mode.
Weather dependent operation
Operation mode • Cooling operation - The product yields cool water to use in 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.
Selecting Target Temperature
Press SET TEMP button to select each operation mode.
Leaving water temperature
Sanitary water tank temperature
Adjust desired temperature by pressing change TEMP buttons on each mode. To raise the temperature
To lower the temperature
h Note : Increase 1 ℃ or 2 ℉ per one time pressing : Decrease 1 ℃ or 2 ℉ 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.
Weather-Dependent Operation This mode is only applied to heating. In order to save energy and to give highest comfort, setting temperature will follow outside temperature. If outdoor temperature decreases, heating capacity for the house will increase automatically in order to keep same room temperature. All parameters will be set by installer during start-up procedure and will be adapted to the site characteristic.
Press OPER MODE button to select weather-dependent operation mode.
Adjust the desired temperature level by pressing change TEMP buttons.
: Weather dependent operation icon
Ex) Decreasing temperature profile by 3°C (based on room air temperature) <Temperature adjust step (unit : °C)> -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5 Cold
Press repeatedly VIEW TEMP button To select each temperature. (Whenever press VIEW TEMP button, the room temperature will be displayed during 5 seconds.)
: 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)
Silent Mode Operation Silent mode operation is that the unit works at reduced capacity so that the noise produced by the unit drops.
Press the programming button repeatedly until silent mode icon is shown.
Press left, right button to select menu. “AM/PM or hour”
Press down button to move to AM/PM part and adjust it. (The AM/PM segment will be flashed).
Press right button to move to "Hour" part. (the "Hour" segment will be flashed).
Press up, down button to adjust the Hour.
If you finish the setting, press OK / CLEAR button.
Press exit button to exit or system will automatically release without any input 25 seconds.
This implies that the heating and cooling capacity will also drop. Beware of this when a certain level of heating or cooling is required. Silent mode operation may not work while the product is proceeding higher priority operation such as defrost operation, anti-freezing operation, and etc. (When this mode is not operated by the priority order, ONLY display .)
Quick Sanitary Tank Heating If there is urgent sanitary heating demand, Quick Sanitary Tank Heating mode can be used to reduce the time to reach target sanitary tank temperature by forcibly turning on sanitary tank heater. After reaching target sanitary tank temperature or by user’s input to stop, Quick Sanitary Tank Heating mode will be finished.
Press Sanitary Tanke Heating Enable button with up button for 3 seconds to start Quick Sanitary Tank Heating. ‘Sanitary Tank Heating Enable’ icon and ‘Sanitary tank heater’ icon will be flashing together.
If target sanitary tank temperature is reached or user pushes Sanitary Tanke Heating Enable button with down button for 3 seconds, Quick Sanitary Tank Heating will be finished and icon flashing will be stopped.
Programming : Sanitary Tank Heating & Sanitary Tank Heater Operation This function is schedule programming about sanitary tank heating and sanitary tank heater operation. Two schedule programming for sanitary tank heating and another Two schedule programming for sanitary tank heater operation are possible. Pre-assigned program numbers for sanitary tank heating programming are ‘1’ and ‘2’. Programming number ‘3’ and ‘4’ are assigned for sanitary tank heater operation. Scheduled programming will be operated everyday.
Press programming button to enter the programming mode. Repeat pressing button to select sanitary tankt heating programming. (the segment flashing)
Press left and right button to adjust schedule program number. Programming number ‘1’ and ‘2’ are for sanitary tank heating programming(if selected, ‘Sanitary tank heating enabled’ icon will be flashing), and ‘3’ and ‘4’ are for sanitary tank heater operation programming(if selected, ‘Sanitary tank heater’ icon will be flashing).
After selecting programming number, press down button to enter adjusting turn-on time. Turn-on time can be adjusted by pressing left, right, up, and down button. After assigning minute of turn-on time, press right button to enter adjusting turn-off time. Like adjusting turn-on time, press left, right, up, and down button to change turn-off time.
Press set button to finish programming. To exit Programming mode, press ESC button.
The term "thermostat", which is widely used in this chapter, is a kind of 3rd party accessory. LG Electronics does not supply thermostat and it should be supplied 3rd party manufacturers. Room thermostat can be used for easy and convenience control. To utilize thermostat more efficiently and correctly, this chapter presents information about using thermostat.
CAUTION 1. 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. 2. Setting temperature range by thermostat can be different with that of the product. The heating or cooling set temperature should be chosen within the setting temperature range of the product.
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.
Operating Thermostat with Control Panel • Following features are permitted when thermostat is installed. : •
SET TEMP button
VIEW TEMP button
Temperature adjust button*
Sanitary water heating Enable / Disable
Silent operation On / Off
* : 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. • Following features are NOT permitted when thermostat is installed. : •
Emergency Operation • Definition of terms - Trouble : a problem which can stop system operation, and can be resumed temporally under limited operation without certificated professional's assist. - 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. - If system found some problem, which is not critical to system operating for yielding heating energy, the system can temporarily continue in emergency mode operation with end user's decision. • Classified trouble - Trouble is classified two levels according to the seriousness of the problem. : Slight trouble and Heavy trouble - Slight trouble : Sensor trouble. In most case, this trouble is concerned with sensor problems. The unit is operating under emergency mode operation(level 1). - Heavy trouble : Compressor cycle trouble. Emergency mode operation(level 2) is performed by optional electric heater. - Option trouble : a problem is found for option operation such as water tank heating. In this trouble, the troubled option is assumed as if it is not installed at the system. • Emergency operation level - When system met trouble, it stops operation and wait for user’s decision : Calling service center or starting emergency operation. - To start emergency operation, user simply push ON / OFF button once more. - Two different levels are prepared for emergency operation : High temperature cycle and low temperature cycle. - In emergency operation mode, user can not adjust target temperature. ※ It can not be operated, if the electric heater accessory is not installed. Dip Switch (#4)
• Following features are permitted in emergency operation. :
* : 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.
• Following features are NOT permitted in emergency operation. : -
• Duplicated trouble : Option trouble with slight or heavy trouble - If option trouble is occurred with slight (or heavy) trouble at the same time, the system puts higher priority to slight (or heavy) trouble and operates as if slight (or heavy) trouble is occurred. - Therefore, sometimes sanitary water heating can be impossible in emergency operation mode. When sanitary water is not warming up while emergency operation, please check if sanitary water sensor and related wiring are all Ok.
• Emergency operation is not automatically restarted after main electricity power is reset. - In normal condition, the product operating information is restored and automatically restarted after main electricity power is reset. - But in emergency operation, automatic re-start is prohibited to protect the product. - Therefore, user must restart the product after power reset when emergency operation has been running.
Maintenance and Service Maintenance Activities 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. • If power is not supplied, some special product-protecting actions (such as water pump anti-locking) will not performed.
Call the service immediately in the following situations 1. Anything abnormal such as burning smell, loud noise etc. happen. Stop the unit and turn the breaker off. Never try to repair by yourself or restart the system in such cases. 2. Main power cord is too hot or damaged. 3. Error code is generated by self diagnosis. 4. Water leaks from unit. 5. Any switch, breaker (safety, earth) or fuse fails to work properly. User must carry routine checkup & cleaning to avoid unit’s poor performance. In case of special situation, the job must be carried out by the only service person.
CAUTION • In the case of water with added brine, the drain valve of shut-off valve must be connected to a recovery container. • Do not touch the water stirred with the brine. • When the brine in the pipe is leaked, do not operate the unit and contact dealer, seller or an authorized service center.
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 unit.
Control panel display is faint, or no display at all.
Explanation • Have you made a mistake in timer operation? • Has the fuse blown or has the circuit breaker been tripped? • If ‘CH 14’is displayed in the display panel, check whether the water pipe is frost or remove the air in the PHEX by opening the air vent. • Check that this is not a damp smell exuded by the walls, carpet, furniture or cloth items in the room. • This is the protector of the mechanism. • Wait about three minutes and operation will begin. • The room may have been very hot when the AWHP was first turned on. Allow time for it to cool down. • Has the setting temperature been set incorrectly? • Refrigerant flow sound - While the system is being started or stopping, sound from the refrigerant flow may be heard. • Water noise - During starting or stopping of the unit, noise can appear in water piping. • During defrost - Noise can appear in unit due to defrosting of water. • Sound for the unit heat exchanger - Durig the cooling operation, a sound may be heard from the indoor unit heat exchanger due to water freezing or melting. • Steam from heat exchanger - During defrosting operation, ice on the heat exchanger is melted, resulting in making steam. • Has the circuit breaker been tripped?
[Representative] LG Electronics Inc. EU Representative Krijgsman 1, 1186 DM Amstelveen, The Netherlands [Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA