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OWNER'S MANUAL
AIR
CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
Hydro Kit IWT (medium temperature)
Original instruction
MFL72102301
Rev.00_020624
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www.lg.com
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All Rights Reserved.
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Summary of Contents for LG ARNH24GK5A4
- Page 1 OWNER’S MANUAL CONDITIONER Please read this manual carefully before operating your set and retain it for future reference. Hydro Kit IWT (medium temperature) Original instruction www.lg.com MFL72102301 © All Rights Reserved. Rev.00_020624...
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Page 2: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS SAFETY INSTRUCTIONS PRODUCT INTRODUCTION Typical installation scene Remote controller Related Information DESCRIPTION OF THE OPERATION Main screen Menu screen Setting screen Popup screen Monitoring Returning to the screen OPERATION SETTING On / Off Operation mode Cooling operation Heating operation AI / Auto operation... - Page 3 TABLE OF CONTENTS ENERGY MONITORING SETTING Information of Energy Monitoring FUNCTION SETTING How to enter function setting Function setting Wi-Fi Pairing Defrost Mode 3rd Party Boiler USER SETTING How to enter user setting User Setting Language Temperature Unit Screen Saver Timer LCD Brightness In Idle Date Time...
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Page 4: Safety Instructions
SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS Read the precautions in this manual This appliance is filled with carefully before operating the unit. flammable refrigerant. This symbol indicates that a service This symbol indicates that the personnel should be handling this Operation Manual should be read equipment with reference to the carefully. - Page 5 SAFETY INSTRUCTIONS • 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 lightning rod or telephone ground wire.
- Page 6 SAFETY INSTRUCTIONS • 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.
- Page 7 SAFETY INSTRUCTIONS • 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.
- Page 8 SAFETY INSTRUCTIONS • Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress air or Oxygen and Do not use Flammable gases. Otherwise, it may cause fire or explosion. - There is the risk of death, injury, fire or explosion. •...
- Page 9 SAFETY INSTRUCTIONS • 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. •...
- Page 10 • During floor heating operation it is important to limit the minimum/maximum water temperature. • If anyone other than a licensed Professional installs, repairs, or alters LG Electronics Air Conditioning Products, the warranty is voided. - All costs associated with repair are then the full responsibility of the owner.
- Page 11 SAFETY INSTRUCTIONS This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
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Page 12: Product Introduction
PRODUCT INTRODUCTION PRODUCT INTRODUCTION Typical installation scene Domestic Water In Domestic Water Out Water Water 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. 6. -
Page 13: Remote Controller
PRODUCT INTRODUCTION Remote controller 2021.02.04(Thu.) AM 10:39 Operation display window Back button On/ Off button OK button Up/Down/Left/Right Operation display window Operation and Settings status display When you move to the previous stage from the menu’s Back button setting stage Up/down/left/right button When you change the menu’s setting value OK button... -
Page 14: Description Of The Operation
DESCRIPTION OF THE OPERATION DESCRIPTION OF THE OPERATION Main screen In the main screen, press [<, >(left/right)] button to select the category to set, and you can control by pressing [ ∧ ,∨ (up/down)] button. 2021.02.04(Thu.) AM 10:39 Menu screen In the main screen, press [<, >(left/right)] button to select the menu and press [OK] button to move to menu screen. -
Page 15: Setting Screen
DESCRIPTION OF THE OPERATION Setting screen Select the category to set using [ ∧,∨(up/down)] button. In each detail screen of the menu, as in the box in the left figure, when “<,>” icons are displayed at the same time, you can immediately apply the setting value by pressing [<, >(left/right)] button. -
Page 16: Monitoring
DESCRIPTION OF THE OPERATION Monitoring In the main screen, you can enter the monitoring screen by pressing [Back] button In the monitoring screen, you can check the following information, - The room temperature - The outdoor temperature - The outdoor temperature - The water inlet / outlet temperature - The DHW tank temperature - The DHW tank temperature... -
Page 17: Operation Setting
OPERATION SETTING OPERATION SETTING On / Off Hydro Kit will be turned on or off. Press the remote controller’s (On/Off) button. - If the product is in operation, On/Off button will be illuminated. If the product is in off, On/Off button backlight will be off. 2021.02.04(Thu.) AM 10:39 Operation mode You can easily control the desired operation mode. -
Page 18: Cooling Operation
OPERATION SETTING Cooling operation Cooling operation’s minimum setting temperature is 5 °C. • The desired temperature can be controlled in the units of 1 °C. - Set the desired temperature lower than the water temperature. - water temperature is displayed on the default screen of the remote controller. - If the setpoint is set higher than the water temperature, then the unit will remain in the cool mode but will not begin to cool the water temperature exceeds the setpoint. -
Page 19: Heating Operation
OPERATION SETTING Heating operation • The desired temperature can be controlled in the units of 1 °C. - Set the desired temperature higher than the water temperature. - Water temperature is displayed on the default screen of the remote controller. - When the desired temperature is set lower than the water temperature, warm water doesn't come out. -
Page 20: Ai / Auto Operation
OPERATION SETTING AI / Auto operation 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. -
Page 21: Temperature Setting
TEMPERATURE SETTING TEMPERATURE SETTING Controlling desired temperature You can easily control to the desired temperature. • In the main screen, press [<, > (left/right)] button to select the desired temperature category, and press [∧,∨(up/down)] button to set the desired temperature. - In the cooling, heating, and AI/auto mode, the desired temperature control is possible. -
Page 22: Dhw Heating Operation
TEMPERATURE SETTING DHW heating operation The DHW heating operation’s minimum setting temperature is 30 °C. • The desired temperature can be controlled in the units of 1 °C. - Set the desired temperature higher than the DHW tank temperature. - DHW tank temperature is displayed on the default screen of the remote controller. - When the desired temperature is set lower than the DHW tank temperature, warm water doesn't come out. -
Page 23: View Temperature
TEMPERATURE SETTING View temperature General mode You can check the current temperature. • In the main screen, you can enter the monitoring screen by pressing [Back] button. Mode Description Room View room temperature temperature Inlet View inlet water temperature temperature Outlet View outlet water temperature temperature... -
Page 24: Circuit Mode Nd
TEMPERATURE SETTING circuit mode Mode Description Circuit 1 View Circuit 1 temperature temperature Circuit 2 View Circuit 2 temperature temperature Inlet View inlet water temperature temperature Outlet View outlet water temperature temperature View DHW temperature temperature Outdoor View outdoor temperature temperature... -
Page 25: Lock Setting
LOCK SETTING LOCK SETTING How to enter Lock setting • In the menu screen, press [<,>(left/right)] button to select “lock setting” category, and press [OK] button to move to the lock setting list screen. • In the lock setting list, if you press [ ∧ ,∨(up/down)] button, you can turn on/off the corresponding lock function. -
Page 26: Schedule Setting
SCHEDULE SETTING SCHEDULE SETTING How to enter schedule • In the menu screen, press [<,>(left/right)] button so select the schedule category, and press [OK] button to move to the schedule setting list screen. • In the schedule setting list screen, press [ ∧,∨(up/down)] button to select the menu to set, and press [OK] button to move to the detail screen. -
Page 27: Display Schedule
SCHEDULE SETTING Display schedule It is the function that can check the status of the timer (schedule) saved in the remote controller. • In the schedule list, select the daily schedule status category, and press [OK] button to move to the detail daily schedule status screen. -
Page 28: Schedules & Edit
SCHEDULE SETTING Schedules & Edit It is the function that can check the status of the timer (schedule) saved in the remote controller. • In the schedule list, select the daily schedule status category, and press [OK] button to move to the daily schedule status detail screen. -
Page 29: Schedules & Edit - Add Schedule
SCHEDULE SETTING Schedules & Edit – Add schedule Description of each stage in Add schedule Stage 1. Period setting Stage 2. Day of week setting Stage 3. Time setting Stage 4. Operation setting Add schedule is completed In ‘Stage 1’, it sets the period to perform the timer. In ‘Stage 2’, it sets the day of week to perform the timer. -
Page 30: Exception Day
SCHEDULE SETTING Exception Day It is the function to automatically stop the operation on the set timer day. • In the schedule list, select the exception day category, and press [OK] button to move to the Exception day designation detail screen. •... -
Page 31: Dhw Recirculation Schedule
SCHEDULE SETTING DHW Recirculation Schedule It is the function that can check the status of DHW recirculation timer (schedule) saved in the remote controller. • In the schedule list, select the DHW recirculation schedule status category, and press [OK] button to move to the daily schedule status detail screen. You can check the set Timer time, period, and day of week. - Page 32 SCHEDULE SETTING Description of each stage in Add schedule • Stage 1. Usage setting - It sets the use of the timer setting. - Select ‘Use’ to move on the next stage • Stage 2. Time setting setting - It sets the period to perform the timer. - The end time cannot be earlier than the start time.
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Page 33: Low Noise Mode Time
FUNCTION SETTING Low Noise Mode Time It is the function to set the start and end time of the outdoor unit’s low noise mode operation. • In the function setting list, select the Low Noise Mode Time category, and press [OK] button to move to the detail screen. -
Page 34: Energy Monitoring Setting
ENERGY MONITORING SETTING ENERGY MONITORING SETTING Information of Energy Monitoring It provides useful information on the mount of energy and power during the week/month/year. Opening “Energy “option, these are presented on screen. Power/Calorie Setting Energy Power/Calorie The information includes instantaneous power as well as power usage /heat output produced and up to annual trend. -
Page 35: Function Setting
FUNCTION SETTING FUNCTION SETTING How to enter function setting To enter the menu displayed at the bottom, you need to enter the function setting menu as follows. · In the menu screen, press [<,>(left/right)] button to select the setting category, and press [OK] button to move to the setting list. -
Page 36: Function Setting
FUNCTION SETTING Function setting Defrost Mode Step 0 M enu Description Wi-Fi Pairing It is the function to control remotely through network with indoor unit. Defrost Mode It is the function to set defrost mode operation of outdoor unit. It is the function to linkage the boiler of other companies. (this Party Boiler function can be activated, after setting every value in installer mode.) -
Page 37: Wi-Fi Pairing
FUNCTION SETTING Wi-Fi Pairing It is the function to control remotely through network with indoor unit. Wi-Fi Pairing Defrost Mode Step 0 3rd Party Boiler Defrost Mode Wi-Fi Pairing Defrost Mode 3rd Party Boiler Setting value: - Not use (STEP0) - Forced snow removal (STEP1) - Fast defrost setting (STEP2) - Forced snow removal + fast defrost (STEP3) -
Page 38: Wi-Fi Pairing
FUNCTION SETTING Party Boiler NOTE This function is not default. It can be activated, after setting value in installer mode. Function to set whether or not to use a installed 3 party boiler function. If the status of this function is “Manual”, you can choose control mode of boiler. AS shown above, After every setting is completed in installer mode, 3rd party boiler option is activated in function list.(Only active in manual mode.) Wi-Fi Pairing... -
Page 39: User Setting
USER SETTING USER SETTING How to enter user setting To enter the menu displayed at the bottom, you need to enter the user setting menu as follows. • Select the setting category, and press [OK] button to move to the setting list. •... -
Page 40: User Setting
USER SETTING Language Set the language to be displayed on the remote controller. • In the user setting list, select the language category, and press [OK] button to move to the detail screen. • After the setting, if you press [OK] button, the setting is saved and moves to the previous screen. -
Page 41: Temperature Unit
USER SETTING Temperature Unit Set the temperature unit displayed on the remote controller. • In the user setting list, select the temperature unit setting category, and press [OK] button to move to the detail screen. Celsius Value Fahrenheit CAUTION The temperature unit function may not work or work differently in some products. You cannot set the temperature unit in the slave wired remote controller. -
Page 42: Screen Saver Timer
USER SETTING Screen Saver Timer Adjust the screen Off time of the remote controller. • Select the following setting values using [<,>(left/right)] button. Value 15 seconds 30 seconds (default) 1 minute CAUTION Selecting longer stand by screen will decrease LCD lifespan. LCD Brightness In Idle Adjust the remote controller’s screen brightness. -
Page 43: Date
USER SETTING Date Set the date displayed on the remote controller. • In the user setting list, select the date category, and press [OK] button to move to the detail screen. • After the setting, if you press [OK] button, the setting is saved and moves to the previous screen. -
Page 44: Time
USER SETTING Time Set the time displayed on the remote controller. • In the user setting list, select the time category, and press [OK] button to move to the detail screen. • After the setting, if you press [OK] button, the setting is saved and moves to the previous screen. -
Page 45: Summer Time
USER SETTING Summer Time Set the daylight savings time dates in the remote controller. • In the user setting list, select the summer time setting category, and press [OK] button to move to the detail screen. - Summer time: The system to advance the time by 1 hour from the spring when the day is longer and return back in the fall when the day gets shorter. -
Page 46: Password
USER SETTING Password Set the password to prevent unauthorized change to remote controller settings. • Select the user password setting category, and press [OK] button to move to the detail screen. - If the password is set, when you enter “menu – setting”, you need to input password to enter the setting list. -
Page 47: Schedule Reset
USER SETTING Schedule Reset Reset all timer settings in the remote controller. • In the user setting list, select the schedule reset setting category, and press [OK] button to move to the detail screen. - Press the check button to reset the sleep/simple timer, on/off timer, schedule and exception date in the remote controller. -
Page 48: Theme
USER SETTING Theme Set the theme of the remote controller screen. • Select either white or black using [<,>(left/right)] button. Auto return to main screen Set the auto return mode. • Select either On or Off using [<,>(left/right)] button. -
Page 49: System Reboot
USER SETTING System Reboot Restart the remote controller. • In the user setting list, select the system restart setting category, and press [OK] button to move to the detail screen. - In the detail screen, when you press [OK] button, a popup message is displayed, press the check button, to restart the system. -
Page 50: Overview Owner's Settings
OVERVIEW OWNER’S SETTINGS OVERVIEW OWNER’S SETTINGS Menu structure Menu Lock ................25 All Lock ................25 On/Off Lock ................25 Mode Lock ................25 DHW Lock Schedule ................27 Display Schedule ................28 Schedules & Edit ................30 Exception Day ................31 DHW Recirculation Schedule ................33 Low Noise Mode Time Energy ............34 Information of Energy Monitoring... - Page 51 OVERVIEW OWNER’S SETTINGS Setting Function ......37 Wi-Fi Pairing ......37 Defrost Mode ......38 Party Boiler User ......40 Language ......41 Temperature Unit ......42 Screen Saver Timer ......42 LCD Brightness In Idle ......43 Date ......44 Time ......45 Summer Time ......46 Password ......47 Schedule Reset ......48 Theme Auto return to main...
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Page 52: Using Thermostat
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. -
Page 53: Emergency Operation
EMERGENCY OPERATION 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. - Page 54 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.
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Page 55: Decommissioning And Recycling
EMERGENCY OPERATION Decommissioning and Recycling • Sort the packaging according to cardboard, wood and foil and dispose of it in appropriate containers. • After the lifespan of the device ends it has to be disposed of in accordance with the legislation on waste electrical and electronic devices in force. - Page 56 EMERGENCY OPERATION 3. Draining the DHW tank Use the drain valve shown below to drain the Domestic hot water tank and circuit. The drain valve CAUTION Turn off the power supply of the heat pump before draining the unit. • Turn off the unit •...
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Page 57: Reset Of The Thermal Protection Of The Electrical Heater
EMERGENCY OPERATION Reset of the thermal protection of the electrical heater The thermal protection of the electrical heater is an additional safeguard protecting the device in the following cases: • The electrical relay, which turns on the electrical flow heater can be permanently short-circuited. -
Page 58: Maintenance And Service
MAINTENANCE AND SERVICE 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. -
Page 59: Open Source Software Notice Information
In addition to the source code, all referred license terms, warranty disclaimers and copyright notice are available for download. LG Electronics will also provide open source code to you on CD-ROM for a change covering the cost of performing such distribution (such as the cost of media, shipping, and handling) upon email request to opensource@lge.com. - Page 60 LG Electronics Inc. Single Point of Contact (EU/UK) : LG Electronics European Shared Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands Manufacturer : LG Electronics Tianjin Appliances Co.,Ltd. No. 9 Jin Wei Road, Bei Chen District, Tianjin, 300402, P.R. China UK Importer : LG Electronics U.K.
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