LG Hydro Kit ARNH24GK5A4 Installation Manual

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Owner's manual (60 pages)

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INSTALLATION MANUAL

AIR

CONDITIONER

Please read this installation manual completely before installing the

product. Installation work must be performed in accordance with the

national wiring standards by authorized personnel only.

Please retain this installation manual for future reference after reading

it thoroughly.

Hydro Kit IWT (medium temperature)

Original instruction

MFL67086720

Rev.00_010224

www.lg.com

Table of Contents

Troubleshooting

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Page 1 Installation work must be performed in accordance with the national wiring standards by authorized personnel only. Please retain this installation manual for future reference after reading it thoroughly. Hydro Kit IWT (medium temperature) Original instruction www.lg.com MFL67086720 Rev.00_010224 Copyright © 2024 LG Electronics Inc. All Rights Reserved.
Page 2: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS SAFETY INSTRUCTIONS INSTALLATION PART GENERAL INFORMATION Model Information Accessories INSTALLATION Transporting the Unit Selection of the best location INSTALLATION OF INDOOR UNIT Conditions where Indoor Unit is Installed PIPING AND WIRING FOR INDOOR UNIT Water Piping and Water Circuit Connection Water pump Capacity Pressure Drop...
Page 3 TABLE OF CONTENTS SERVICE SETTING How to enter service setting Service setting Service contact Model information RMC version lnformation Open source license INSTALLER SETTING How to enter installer setting Installer setting COMMISSIONING Check List before Starting Operation Starting Operation Starting Operation ﬂow chart Airborne Noise Emission Decommissioning and Recycling Reset of the thermal protection of the electrical heater...
Page 4: Safety Instructions
SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS Read the precautions in this This appliance is filled with manual carefully before flammable refrigerant (R32) operating the unit. This symbol indicates that a This symbol indicates that service personnel should be the Operation Manual should handling this equipment with be read carefully.
Page 5 SAFETY INSTRUCTIONS • For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. - There is risk of fire or electric shock. • Always ground the unit. - There is risk of fire or electric shock. •...
Page 6 SAFETY INSTRUCTIONS • Be sure the installation area does not deteriorate with age. - If the base collapses, the unit could fall with it, causing property damage, unit failure, and personal injury. • Do not install the unit outdoor. - It may cause damage to the unit. •...
Page 7: Operation
SAFETY INSTRUCTIONS • To prevent the mixing of different types of refrigerants, be sure to check the type of refrigerant used in the outdoor unit. • When mechanical connectors are reused indoors, sealing parts shall be renewed. (for R32) • When flared joints are reused indoors, the flare part shall be re- fabricated.
Page 8 SAFETY INSTRUCTIONS • When flammable gas leaks, turn off the gas and open a window for ventilation before turning the unit on. - There is risk of explosion or fire. • If strange sounds, or smell or smoke comes from unit, turn the breaker off or disconnect the power supply cable.
Page 9 • The appliance shall be stored so as to prevent mechanical damage from occurring. • 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 10 SAFETY INSTRUCTIONS • Refrigerant tubing shall be protected or enclosed to avoid damage. • Flexible refrigerant connectors (such as connecting lines between the indoor and outdoor unit) that may be displaced during normal operations shall be protected against mechanical damage. •...
Page 11 SAFETY INSTRUCTIONS • Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants. (for R32) •...
Page 12: Installation Part
INSTALLATION PART INSTALLATION PART Thank you for choosing LG Electronics Hydro Kit. Before starting installation, please make it sure that all parts are found inside the product box. INDOOR UNIT BOX Item Image Quantity Item Image Quantity Indoor unit Connection Hose Card, Gasket (G1”)
Page 13: General Information
To extend the functionality of Hydro Kit, there are various external auxiliary apparatus called as "accessories". They are classified by "accessories" and "3rd party accessories" according to the manufacturer. Accessories are presented LG Electronics, and 3rd party accessories are presented by related manufacturers.
Page 14 Accessory model name : Installed at field, ordered and purchased separately by the corresponding model name, supplied with separated package. 2. * : Some advanced functions controlled by individual controller cannot be operated. 3. If you need more detail, please refer to the BECON PDB or the manual of product(LG Partner Portal).
Page 15: Specification
GENERAL INFORMATION A A ccessories supported by 3rd party Companies Item Purpose Specification • Heating-Only type (230 V AC) Thermostat To control by air temperature • Cooling/Heating type (230 V AC with Mode selection switch) • Mixing valve Mix Kit To use mixing circuit •...
Page 16: Installation
INSTALLATION INSTALLATION Transporting the Unit CAUTION Be very careful while carrying the unit. • Do not have only one person carry the unit if it is more than 20 kg (44.1 lbs). • PP bands are used to pack some products. Do not use them as a mean for transportation because they are dangerous.
Page 17 INSTALLATION SPECIAL REQUIREMENTS Flow chart For Installation Is the area of A satisﬁed? Installation = (m / (2.5 x (LFL) (5/4) ≤ 15.964 kg not less than A / (0.75 x LFL x h Installation by adding natural ventilation *Refer to Table 1 *Refer to Table 2 Is the area of A satisﬁed?
Page 18 INSTALLATION Table 1 (Minimum installation required area) Minimum installation required area (m²) Minimum installation required area (m²) Total amount of Total amount of Floor standing Floor standing refrigerant in the system (kg) refrigerant in the system (kg) (h 0 : 1.2 m) (h 0 : 1.2 m) 1.50 4.79...
Page 19 INSTALLATION Minimum installation required area (m²) 2000.00 1800.00 1600.00 1400.00 1200.00 1000.00 800.00 600.00 400.00 200.00 0.00 Total amount of refrigerant in the system (kg) Floor standing (h : 1.2 m)
Page 20 INSTALLATION Table 2 (Minimum installation required area) For the lower opening: - It is not an opening to the outside - The opening cannot be closed - The opening must be ≥ Anv - The area of any openings above 300 mm from the floor does not count when determining Anv - At least 50% of Anv is less than 200 mm above the floor - The bottom of the lower opening is ≤...
Page 21: Installation Of Indoor Unit
INSTALLATION OF INDOOR UNIT INSTALLATION OF INDOOR UNIT The indoor unit of Hydro Kit is installed inside where terminal of under floor water pipe cycle and refrigerant pipe from the outdoor unit are accessible at the same time. In this chapter conditions for installation place is described. In addition, considerations when installing accessories or 3rd party accessories are described, too.
Page 22 INSTALLATION OF INDOOR UNIT Transporting the Unit CAUTION • The device must be transported with transport devices. • Secure the device during transport to prevent damage. • The device must not be stacked and other objects must not be placed on it. •...
Page 23: Front Panel Removal
INSTALLATION OF INDOOR UNIT Connecting Condensate drainage ② Step 1. Before the indoor unit’s final positioning, Insert the drainage hose into the drain ①, which leads to the sinkhole or storm drain. Seal the gap with a suitable gasket. Step 2. Then push the appliance to the wall ②. CAUTION •...
Page 24: Piping And Wiring For Indoor Unit
PIPING AND WIRING FOR INDOOR UNIT PIPING AND WIRING FOR INDOOR UNIT Procedures about water piping and electric wiring at the indoor unit are described in this chapter. Water piping and water circuit connection, water charging, pipe insulations will be shown for water piping procedures.
Page 25 PIPING AND WIRING FOR INDOOR UNIT WARNING Water condensation on the floor While cooling operation, it is very important to keep leaving water temperature higher than 16 °C. Otherwise, dew condensation can be occurred on the floor. If floor is in humid environment, do not set leaving water temperature below 18 °C. Water condensation on the radiator While cooling operation, cold water may not flow to the radiator.
Page 26: Water Piping
PIPING AND WIRING FOR INDOOR UNIT Connection to the Domestic hot water system The hydraulic connection has to be installed in accordance with the national and local regulations for connecting buffer tanks for DHW to enable the water flow in full force. To prevent water leakage, install a drain through the floor below the level of the device.
Page 27 PIPING AND WIRING FOR INDOOR UNIT Shut-off valve (Field Supply) Check valve (Field Supply) Pressure reducing valve (Field Supply) Circulation pump (Field Supply) Safety valve (10 bar) Expansion vessel (Field Supply) Domestic hot water(DHW) Domestic cold water DHW re-circulation (Optional) CAUTION •...
Page 28 PIPING AND WIRING FOR INDOOR UNIT Setting the pressure for the expansion vessel for DHW NOTE • The cold DHW connection must be fitted with an expansion vessel suitable for drinking water. The selection and installation must be in accordance with the standard DIN 4807 T5. •...
Page 29: Connection To The Heating System
PIPING AND WIRING FOR INDOOR UNIT Connection to the Heating system The selection of circulation pumps, valves, safety elements and pipes has to be performed by the design engineer according to the heating/cooling capacity of the device and minimum water flow rate.
Page 30: Water Volume And Expansion Vessel Pressure
PIPING AND WIRING FOR INDOOR UNIT Water Volume and Expansion Vessel Pressure - The expansion vessel must be dimensioned in accordance with standard EN 12828. The integrated vessel has a volume of 8 liters. If the expansion volume is not enough, and additional vessel must be installed externally (Field supply).
Page 31 PIPING AND WIRING FOR INDOOR UNIT Water Charging For water charging, please follow below procedures. Step 1. Open all valves of whole water circuit. Supplied water should be charged not only inside the indoor unit, but also in the under floor water circuit, sanitary water tank circuit, FCU water circuit, and any other water circuits controlled by the product.
Page 32 PIPING AND WIRING FOR INDOOR UNIT Pipe Insulation Purpose of water pipe insulation is : - To prevent heat loss to external environment - To prevent dew generation on the surface of the pipe in cooling operation - Minimum insulation thickness recommendations ensure correct operation of the product, but local regulations may vary and must be followed.
Page 33: Water Pump Capacity
PIPING AND WIRING FOR INDOOR UNIT Water pump Capacity The water pump is variable type which is capable to change flow rate, so it may be required to change default water pump capacity in case of noise by water flow. In most case, however, it is strongly recommended to set capacity as Maximum.
Page 34 PIPING AND WIRING FOR INDOOR UNIT MGQ62321902 : UPM3K GEO 20 - 75 CHBL (5.6 kW, 7.1 kW, 9.0 kW) QH Chart Q [m Performance test based on standard ISO 9906 with pre-pressure 2.0bar and liquid temperature 20 °C. WARNING Selecting a water flowrate outside the curves can cause damage to or malfunction of the unit.
Page 35: Typical Installation Example
PIPING AND WIRING FOR INDOOR UNIT Typical Installation Example CAUTION If Hydro Kit is installed with pre-existing boiler, the boiler and Hydro Kit should not be operated together. If entering water temperature of Hydro Kit is above 50 °C, the system will stop operation to prevent mechanical damage of the product.
Page 36 PIPING AND WIRING FOR INDOOR UNIT CASE 2 : Connecting mixed Circuit [Circuit 2] Mixing Circuit Mixing circuit temp. sensor Domestic hot water Outdoor Indoor City water Mix Kit Floor heating loop Floor heating loop M / F [Circuit 1] Direct Circuit Buffer Tank Outdoor Unit...
Page 37 PIPING AND WIRING FOR INDOOR UNIT CASE 3 : Connecting 3 Party Boiler Domestic hot water Outdoor Indoor City water M / F Boiler Buffer Tank Floor Floor Floor heating loop heating loop heating loop Outdoor Unit Indoor Unit NOTE •...
Page 38: Water Cycle
PIPING AND WIRING FOR INDOOR UNIT Water cycle : Cooling <Water Side> : Heating Shower City Water Spaceheating Outdoor Unit Field supply Re-Circulation Shut-off Shut-off pump Valve Valve (Field supply) Field supply Expansion Tank Drain Pan & hole Drain hose Description Category Symbol...
Page 39: Water Quality
PIPING AND WIRING FOR INDOOR UNIT Water Quality Water quality should be complied with EN 98/83 EC Directives. Detailed water quality condition can be found in EN 98/83 EC Directives. CAUTION • If the product is installed at existing hydraulic water loop, it is important to clean hydraulic pipes to remove sludge and scale.
Page 40: Preparation For Piping
PIPING AND WIRING FOR INDOOR UNIT Preparation for Piping - Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. - Use the de-oxidised copper as piping materials to install. Step 1. Cut the pipes and the cable. Copper - Use the accessory piping kit or the pipes Slanted Uneven Rough...
Page 41: Electrical Wiring
PIPING AND WIRING FOR INDOOR UNIT Electrical Wiring General Consideration Followings are should be considered before beginning indoor unit wiring. - Field-supplied electrical components such as power switches, circuit breakers, wires, terminal boxes, etc should be properly chosen with compliance with national electrical legislation or regulation.
Page 42: Wiring Connection
PIPING AND WIRING FOR INDOOR UNIT Wiring Connection Connect the wires to the terminals on the control board individually according to the outdoor unit connection. • Ensure that the wire color of the outdoor unit and terminal No. are same as those of the indoor unit respectively.
Page 43 PIPING AND WIRING FOR INDOOR UNIT EIectric Heater Wiring CAUTION Power Cable Specification: The power cord connected to the heater should be complied with IEC 60245 or HD 22.4 S4(Rubber insulated cord, type 60245 IEC 66 or H07RN-F) External power supply (same dedicated power 1 Phase(Ø) supply for the indoor...
Page 44 PIPING AND WIRING FOR INDOOR UNIT CAUTION f f A A t r r e e h h t t r r i i f f t t a a o o i i f f o o h h t t t t i i o o i i , , s s...
Page 45: Connecting Cables
PIPING AND WIRING FOR INDOOR UNIT Connecting Cables Types of the cables Classification Types Cables cross section Power cable(H07RN-F) x cores 1.5 x 3 Communication cable(VCTF-SB) x cores 1.0~1.5 x 2 The distance between communication cable and power cable - If the power cable and communication cable are tied together, system malfunction may occur with electrostatic, electromagnetic combination effect causing the interference signal.
Page 46: Accessories Installation
In this chapter, specifications about supported 3rd party accessories and how to connect to Hydro Kit is introduced. It is noted that this chapter only deal with 3rd party accessories. For accessories supported by LG Electronics, please refer to installation manual of each accessories.
Page 47: General Information
ACCESSORIES INSTALLATION Direct Sun ray contact area 5 ft (1.5 m) Thermostat General Information The Heat Pump supports following thermostats. Type Power Operating Mode Supported Heating Only (3) Mechanical 230 V~ Heating / Cooling (4) Heating / Cooling / DHW Heating (5) Heating Only (3) Electrical 230 V~...
Page 48: How To Wire Thermostat
ACCESSORIES INSTALLATION How to wire thermostat Follow below procedures Step 1 ~ Step 3. Step 1. Uncover front cover of the unit and open the control box. Step 2. Identify the power specification of the thermostat. If it is 220-240 V~, go to Step 3. Step 3.
Page 49: Final Check
ACCESSORIES INSTALLATION Final check • DIP switch setting : Set DIP switch No. 8 to ‘ON’. Otherwise, the unit can not recognize the thermostat. • Remote Controller : - ‘Thermostat’ text is displayed on the remote controller. - Button input is prohibited.
Page 50 ACCESSORIES INSTALLATION Mixing Circuit The mixing circuit is generally used to control the temperature of 2 rooms differently. To use the mixing circuit, you need to prepare a separate Mix Kit. The mix kit must be installed in the main zone.
Page 51 ACCESSORIES INSTALLATION How to Wire Mixing Kit Follow below procedures Step 1 ~ Step 3. Step 1. Uncover front cover of the unit. Step 2. Find terminal block and connect wire as below (L) : Live signal from PCB to mix pump (N) : Neutral signal from PCB to mix pump (L1) : Live signal (for Normal* Closed type) from PCB to MIXING VALVE...
Page 52 ACCESSORIES INSTALLATION [Thermistor for Mixing circuit] Sensor Sensor Holder Sensor Connector Follow below procedures step 1 ~ step 4. Step 1. Install sensor connector to discharge pipe of mix pump. (Welding must be performed to connect the sensor connector to the pipe) Step 2.
Page 53: 3Rd Party Boiler
ACCESSORIES INSTALLATION Party Boiler The product can be used by connecting an Auxiliary boiler. 3 party boiler can be controlled by manually via RS3 remote controller or automatically itself by means of comparing the outside air temperature and the preset temperature. How to wire 3 party boiler Follow below procedures step 1 ~ step 3.
Page 54: 3Rd Party Controller
ACCESSORIES INSTALLATION Party Controller The product can also be linked to 3 party controller. You can connect external controllers using Modbus protocol except for LG controller. If 3 party controller is used, LG controller is not applied to simultaneously. Hydro Kit...
Page 55: Dry Contact
ACCESSORIES INSTALLATION Dry Contact Dry Contact is a solution for automatic control of HVAC system at the owner's best. In simple words, it's a switch which can be used to turn the unit On/Off after getting the signal from external sources. How to install dry contact [Parts of Dry contact] Dry Contact body...
Page 56 ACCESSORIES INSTALLATION Step 3. Before installing the dry contact PCB inside control box, Remove the marking label on control box for using the holes. Step 4. Secure the dry contact PCB using the provided supporters in control box. Step 5. Connect cable to the unit PCB(CN_CC) fully. Step 6.
Page 57 ACCESSORIES INSTALLATION [Setting of Contact Signal Input - PDRYCB320] • For input contact closure only(No power input) Thermostat LG does not supply this section (Field supply) Notes Do not input the voltage signal in "NON VOLT" setting mode otherwise it will cause serious damage •...
Page 58: External Controller - Setting Up Programmable Digital Input Operation
ACCESSORIES INSTALLATION External Controller - Setting up programmable digital input operation If you require to control depending on external digital input(ON/OFF), connect cable to indoor PCB(CN_EXT). Follow below procedures step 1 ~ step 4. Step 1. Check if the power of the unit is turned off. Step 2.
Page 59: Remote Temperature Sensor
ACCESSORIES INSTALLATION Remote Temperature Sensor Remote temperature sensor can be installed any place a user wants to detect the temperature. • The function is not available for some products. Installation condition Role and constraint while installation of remote air temperature sensor is very similar to that of thermostat.
Page 60 ACCESSORIES INSTALLATION How to Install Remote Temperature Sensor [Parts of Remote Temperature Sensor] Remote sensor Connection wire Screw(to fix remote sensor) Follow below procedures step 1 ~ step 6. Step 1. Decide where the remote temperature sensor is Installed. Then, Determine the location and height of the fixing screws in fig.
Page 61 ACCESSORIES INSTALLATION CAUTION • Choose the place where the average temperature can be measured for the unit operates. • Avoid direct sunlight. • Choose the place where the cooling/heating devices do not affect the remote sensor. • Choose the place where the outlet of the cooling fan do not affect the remote sensor. •...
Page 62: External Pump
ACCESSORIES INSTALLATION External pump External pump can be required when the room to take floor heating is too long or the pressure drop of heat emitter is too large to produce the required flow rate. Also, the external pump shall be installed to assist water circulation when the buffer tank is installed.
Page 63: Wi-Fi Modem
ACCESSORIES INSTALLATION Wi-ﬁ Modem Wi-fi modem enables remote system operation from smartphone. Available functions include selection of on/off, operation mode, DHW heating, temperature setup and weekly scheduling etc. How to install Wi-ﬁ Modem [Parts of Wi - fi modem] Wi-fi modem body USB Cable Extension Cable Holder...
Page 64: Energy State
ACCESSORIES INSTALLATION Energy State This product provides energy states that enable customers to use as much as possible of their own renewable energy. It can shift setpoints depending on input signal from Energy Storage System (ESS) or from any other third-party device using Modbus RTU or Digital 230V inputs. Available Energy States There are 8 energy states available.
Page 65: Digital Input For Energy Saving(Ess)
ACCESSORIES INSTALLATION Digital Input for energy saving (ESS) This product provides two digital inputs (ES1/ES2) that can be used to switch between energy states when not using Modbus RTU (CN_MODBUS). Available Energy States There are 8 energy states available in total. Four different states can be triggered using the 230V-inputs –...
Page 66: 2Way Valve
ACCESSORIES INSTALLATION 2Way Valve 2way valve is required to control water flow while cooling operation. Role of 2way valve is to cut off water flow into under floor loop in cooling mode when fan coil unit is equipped for cooling operation.
Page 67: Domestic Hot Water Expansion Vessel - Integrated Into The Unit
ACCESSORIES INSTALLATION Domestic hot water expansion vessel – integrated into the unit How to install DHW expansion vessel (Field Supply) ① DHW expansion vessel (Field Supply) ② Connection hose ① ② Step 1. Screw the hose to the dedicated port ③ inside of the unit. ⑥...
Page 68: Final Check
ACCESSORIES INSTALLATION Final check Check point Description - Check if the shut-off valves should be assembled with Connection of Water Water inlet and outlet pipe of the unit Inlet/Outlet - Check the location of the water inlet/outlet water pipe - Check the pressure of supplying water by using pressure gauge inside the unit - Pressure of Supplying water should be Under 3.0 bar Hydraulic pressure...
Page 69: Configuration
CONFIGURATION CONFIGURATION Hydro Kit is designed to satisfy various installation environment, it is important to set up system correctly. If not configured correctly, improper operation or degrade of performance can be expected. DIP Switch Setting CAUTION Turn off electric power supply before setting DIP switch •...
Page 70: Dip Switch Information
CONFIGURATION DIP Switch Information Option Switch 2 Description Setting Default As Master Group control As Slave DHW integrated indoor unit Accessory installation + Outdoor unit is installed information Reserved Heating Only Cycle Heating & Cooling Electric heater is not used Electric heater is used Selecting electric heater capacity...
Page 71 CONFIGURATION Option Switch 1 Description Description Setting Setting Default Default As Master (LG Extension Module) MODBUS As Salve Party Controller) REGINE MODBUS Function Unified Open Protocol Antifreeze mode not use ANTIFREEZE Antifreeze mode * h Only the switch in the table has a function. Others have no function.
Page 72 CONFIGURATION NOTE 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 73 CONFIGURATION NOTE • 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.
Page 74: Service Setting
SERVICE SETTING SERVICE SETTING How to enter service setting To enter the menu displayed at the bottom, you need to enter the service 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 75: Service Setting
SERVICE SETTING Service contact Check and input the service center phone number that you can call when there is service issue. • In the service setting list, select the service contact point and press [OK] button to move to the detail screen.
Page 76: Model Information
SERVICE SETTING Model information Check product and capacity information to which the remote controller is connected. • In the service setting list, select model information category, and press [OK] button to move to the detail screen. • The unit capacity - 1 kWh = 1 kBtu * 0.29307 kWh is the result calculated based on Btu, There may be a small difference between calculated and actual capacity.
Page 77: Rmc Version Lnformation
SERVICE SETTING RMC version information View the remote controller software version. • In the service setting list, select the RMC version information and press [OK] button to move to the detail screen Indoor Unit | Main : SAA43794505(A2C6) EEPROM : SAA43794607(4EF6) Outdoor Unit SW Version l 3.07.2a(Master)
Page 78: Open Source License
SERVICE SETTING Open source license View the remote controller’s open source license. • In the service setting list, select the open source license category, and press [OK] button to move to the detail screen.
Page 79: Installer Setting
It must be set by the installation specialist with the installation license, and if it is installed or changed without installation license, all problems caused will be the responsibility of the installer, and may void the LG warranty. • In the menu screen, press [<,>(left/right)] button to select the setting category, and press [∧(up)] button for 3 seconds to enter the password input screen for the installer setting.
Page 80: Installer Setting
INSTALLER SETTING Installer setting • You can set the product user functions. • Some functions may not be displayed/operated in some product types.
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Page 95: Commissioning
Product Refrigerant leakage • Refrigerant leakage degrades the performance. If leakage found, Installation contact qualified LG air conditioning installation person. • While cooling operation, condensed dew can drop down to the Drainage treatment bottom of the unit. In this case, prepare drainage treatment (for...
Page 96: Starting Operation
COMMISSIONING Hydro Kit To assure best performance of , it is required to perform periodical check and maintenance. It is recommended to proceed following check list for once a year. CAUTION Turn off the power before proceeding maintenance. Category Item Check Point •...
Page 97: Starting Operation Flow Chart
COMMISSIONING Starting Operation ﬂow chart START Check whether the power cable and Operate the unit in heating mode. communication cable are completely connected Does Test operation start? Does cold water continue to * Check the load (In/Out Temp.) come out after 3 minutes of * Check pipe length and amount of operation? refrigerant...
Page 98: Decommissioning And Recycling
COMMISSIONING 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 99 COMMISSIONING 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 •...
Page 100: Reset Of The Thermal Protection Of The Electrical Heater
COMMISSIONING 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 101: Troubleshooting
COMMISSIONING Troubleshooting If Hydro Kit operates not properly or it does not start operation, please check following list. CAUTION Turn off the power before proceeding troubleshooting. Troubleshooting for Problem while Operation Problem Reason Solution • Set target temperature correctly. • Setting target temperature •...
Page 102: Troubleshooting For Error Code
COMMISSIONING Troubleshooting for Error Code Error Description Main Reasons Code Problem in Remote Room Air Remote air temperature sensor of 01 * sensor MainPCB(indoor) is open or short. Problem in Refrigerant (Inlet Refrigerant inlet pipe temperature sensor of 02 ** side) sensor indoor unit is open or short.
Page 103 COMMISSIONING CAUTION Precaution in service or check. Even after stopping the operation of product, it takes some time to discharge the remaining electricity of the electrolytic capacitor that was charged early. Before conducting a checking or repairing job, pull out the plug out of the outlet and make sure that the lamp on the control board outdoor unit is off.
Page 104: Model Designation
COMMISSIONING Model Designation Serial Number Combinations of functions A:Basic function Chassis Name Electrical Ratings 1:1 Ø, 115 V, 60 Hz 2:1 Ø, 220 V, 60 Hz 6:1 Ø, 220 - 240 V, 50 Hz 7:1 Ø, 100 V, 50/60 Hz 3:1 Ø, 208/230 V, 60 Hz G:1 Ø, 220 - 240 V, 50 Hz/1 Ø, 220 V, 60 Hz Total Heating Capacity in kBtu/h...
Page 105: 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 106 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.09, JinWei Road, Beichen District,Tianjin, 300402.P.R.China UK Importer : LG Electronics U.K. Ltd...

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