LG ARNH10GK2A2 Installation Manual

Hydro kit (for medium temperature)

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Owner's manual (27 pages)

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Page 1 [Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands [Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA For more information, Refer to the CD or LG Web site (www.lg.com). www.lg.com P/NO : MFL67086703...
Page 2: Table Of Contents
Hydro Kit Installation Manual TABLE OF CONTENTS 1. Safety Precautions........................3 2. Installation Parts ..........................8 3. General Information........................9 Model Information ..........................9 General Information ........................10 4. Installation ..........................11 Selection of the best location .......................11 Installation Space.........................11 Foundation for Installation ......................12 Water Piping and Water Circuit Connection ................13 Sanitary Water Tank and Sanitary Water Tank Kit ...............17 Solar Thermal Kit .........................19 Installation Scenes........................20...
Page 3: Safety Precautions
Safety Precautions 1. Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be fol- lowed. n Be sure to read before installing the unit. n Be sure to observe the cautions specified here as they include important items related to safety. n Incorrect operation due to ignoring instruction will cause harm or damage.
Page 4 Safety Precautions Do not modify or Do not install, remove, For antifreeze, always extend the power cable. or reinstall the unit by contact the dealer or an yourself (customer). authorized service cen- ter. • There is risk of fire or •...
Page 5 Safety Precautions n Operation Take care to ensure Do not place anything Do not plug or unplug that power cable could on the power cable. the power supply plug not be pulled out or during operation. damaged during opera- tion. •...
Page 6 Safety Precautions When the unit is Be cautious that water Ventilate the unit from soaked (flooded or sub- could not be poured to time to time when oper- merged), contact an the unit directly. ating it together with a Authorized Service stove, etc.
Page 7 Safety Precautions n Installation Always check for gas Keep level even when Use two or more people (refrigerant) leakage installing the unit. to lift and transport the after installation or unit. repair of unit. • Low refrigerant levels • To avoid vibration or •...
Page 8: Installation Parts
Installation Parts 2. Installation Parts Thank you for choosing LG Electronics Hydro Kit Before starting installation, please make it sure that all parts are found inside the unit box. Item Image Quantity INSTALLATION MANUAL Installation Manual CONDITIONER Please read this installation manual completely before installing the product.
Page 9: General Information
By Interfacing to various accessories user can customize the range of the application. Model Information Model name and related information Hydro Kit Type Model Unit ARNH10GK2A2 ARNH04GK2A2 Power Supply Ø, V, Hz 1, 220~240, 50 12.3 Cooling kcal/h...
Page 10: General Information
, there are various external auxiliary apparatus called as Hydro Kit "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 man- ufacturers. Accessories supported by LG Electronics Item...
Page 11: Installation
Installation 4. Installation Selection of the best location 1. Select space for installing the unit, which will meet the following conditions: The place where the unit shall be installed inside. The place shall easily bear a load exceeding four times of the unit weight. The place where the unit shall be leveled.
Page 12: Foundation For Installation
Installation Foundation for Installation • Fix the unit tightly with bolts as shown below so that the unit will not fall down due to earthquake. • Noise and vibration may occur from the floor or wall since vibration is transferred through the in- stallation part depending on installation status.
Page 13: Water Piping And Water Circuit Connection
Installation Water Piping and Water Circuit Connection General Considerations Followings should be considered before beginning water circuit connection. • Service space should be secured. • Water pipes and connections should be cleaned using water. • Space for installing external water pump should be provided. •...
Page 14: Water Cycle
Installation Water cycle * For the water pipe system, use the closed loop type. 1. For the parts of the water pipe system, use the parts above the design water pressure. 2. For the water pipe, do not use steel pipe. 3.
Page 15 Installation * WATER TANK & FLOOR HEATING INSTALLATION 1. Use the pump (1) with sufficient capacity to assure loss of overall water pressure and to supply water to the Hydro Kit 2. Install the shut-off valve (2) on both sides of the pump to clean and repair the pump. 3.
Page 16 Installation Strainer - Use the 50 mesh strainer. (Exclude scale diameter of 0.4mm or less and other net) - Check the strainer direction and assemble on the inlet hole (Refer to picture) - Wrap the Teflon tape on the screw thread of the water pipe for more than 15 times for assembly. - Install the service port facing downward.
Page 17: Sanitary Water Tank And Sanitary Water Tank Kit
Installation Sanitary Water Tank and Sanitary Water Tank Kit Installation Condition Installing sanitary water (DHW) tank requires following considerations : • Sanitary water tank should be located at the flat place. • Water quality should comply with EN 98/83 EC Directives. •...
Page 18 Installation WARNING : Installing recirculation pump When Hydro Kit is used with the sanitary water tank, it is STRONGLY recommended to install recirculation pump to prevent cold water at the end of hot water supply flooding out and to stabilize the water temperature inside the sanitary water tank. - The recirculation pump should be operated when sanitary water demand is not required.
Page 19: Solar Thermal Kit
Installation Solar Thermal Kit How to Install Solar Thermal Kit Step 1. Check the diameter of pre-installed pipes. (symbol Ⓐ and Ⓑ) Step 2. If the diameter of pre-installed pipes is different from diameter of solar thermal kit, it is neces- sary to reduce or extend of pipe’s diameter.
Page 20: Installation Scenes
Installation Installation Scenes Some installation scenes are presented for example. As these scenes are conceptual figures, in- staller should optimize the installation scene according to the installation conditions. This is a simple concept diagram. Refer to the water cycle(page 12~13) for installation components. 1) Floor Heating only (Without mixing tank) Fan coil unit Floor heating loop...
Page 21: Water Quality
Installation 3) Floor Heating + Hot water Fan coil unit Floor heating loop Radiator Hot water Sanitary water tank City water 4) Floor Heating + Hot Water + Solar Thermal Pump 3way valve 2way valve Bypass valve Solar heat source Fan coil unit Floor heating loop Radiator...
Page 22 Installation CAUTION: • If the unit is installed at existing hydraulic water loop, it is important to clean hydraulic pipes to remove sludge and scale. • Installing sludge strainer in the water loop is very important to prevent performance degrade. •...
Page 23: Refrigerant Piping
Installation Refrigerant Piping Cut the pipes and the cable - Use the accessory piping kit or the pipes Copper purchased locally. Slanted Uneven Rough tube 90° - Measure the distance between the indoor and the outdoor unit. - Cut the pipes a little longer than measured distance.
Page 24 - Pipe-searching process error may occur if the pipe tem- Ø22.2 Gas pipe Ø9.52 Liquid pipe perature does not increase. - It is recommended that Hydro Kit (ARNH10GK2A2 model) is connected to No.1 valve and No.2 valve. DIP S/W setting Example Indoor Unit Indoor Unit...
Page 25: How To Connect Wirings
Installation How to connect wirings Remove the box cover of electric parts and connect the wiring. CAUTION: When connecting the power and communication Communi- cable, always use the terminal connector (O- Ground cation cable Communi- Power cation cable ring, Y-ring). cable Power cable Make sure to tighten so that the screw of the ter-...
Page 26: Connecting Cables
Installation Connecting Cables Types of the cables Classification types Cable cross section Power cable(CV) Communication cable(VCTF-SB) 1.0~1.5 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 27: Accessories Installation
• Connect 3way valve, if both floor heating and hot water is used. • Connect the separately purchased thermostat. • Dry contact is an accessory supplied by LG and installed by referring to the attached installation manual. • 3way valve, thermostat and pump are external parts for installation, which are not supplied by LG.
Page 28: Installation Of Wired Remote Controller
Accessories Installation Installation of Wired Remote Controller 1. Please fix tightly using provided screw after placing remote controller setup board on the place where you like to setup. - Please set it up not to bend because poor setup could take place if setup board bends. Please set up remote controller board fit to the reclamation box if there is a reclamation box.
Page 29 Accessories Installation 4. Please connect indoor unit and remote controller using connection cable. Male plug ends Please check if connector is normally connected. Hydro Kit Female plug ends Optional extension cable (purchased separately) 5. Please use extension cable if the distance between wired remote controller and indoor unit is more than 10m.
Page 30: Main Pump Connection
Accessories Installation Main Pump Connection • Select the suitable pump by referring to the flow rate table with water tem- Pump perature difference between the entrance and the exit. (main) • It is recommended that the flow rate is Rated water flow (refer to the specifi- cation of PDB) •...
Page 31: Thermostat
Accessories Installation Thermostat Thermostat is generally used to control the unit by air temperature. When thermostat is connected to the unit, the unit operation is controlled by the thermostat. Installation Condition CAUTION: 1. USE 1~230 V Thermostat. 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.
Page 32 Accessories Installation General Information supports following thermostats. Hydro Kit Type Power Operating Mode Supported Heating Only (3) 1~ 230 V Heating / Cooling (4) Mechanical Heating Only (3) 1~ 24 V Heating / Cooling (4) Heating Only (3) 1~ 230 V Heating / Cooling (4) Electrical Heating Only (3)
Page 33: How To Wire Thermostat
Accessories Installation How to Wire Thermostat Follow below procedures Step 1 ~ Step 6. 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 1~ 230 V, go to Step 4. Otherwise, if it is 1~ 24 V, go to step 3.
Page 34 Accessories Installation Step 6. Find terminal block and connect wire as below. THERMOSTAT WARNING : (Default : 1~ 230 V) Mechanical type Thermostat. Do not connect wire (N) as mechanical type thermostat does not require electric power supply. CAUTION: Do not connect external electric loads. Wire (L) and (N) should be used only for operation Electric Thermostat type thermostat.
Page 35 Accessories Installation NOTICE Thermostat Operation with Remote Controller Following features are permitted when thermostat is installed : • SET TEMP button • VIEW TEMP button • Temperature adjusting button(*) • Sanitary water heating button (*) : The unit is not turned on/off according to the setting temperature at the remote controller. It is turned on/off according to the thermostat signal Following features are NOT permitted when thermostat is installed : •...
Page 36: Remote Temperature Sensor
Accessories Installation Remote Temperature Sensor Remote temperature sensor can be installed any place a user wants to detect the temperature. How to Install Remote Temperature Sensor Step 1. After deciding where the remote temperature sensor is in- stalled, decide the location and height of the fixing screws. (Interval between the screws : 60mm) Fixing screws 60mm...
Page 37: 3Way Valve
Accessories Installation 3Way Valve 3way valve is required to operate sanitary water tank. Role of 3way valve is flow switching between under floor heating loop and water tank heating loop. General Information supports following 3way valve. Hydro Kit Type Power Operating Mode Supported Selecting “Flow A”...
Page 38 Accessories Installation Final Check • Flow direction : - Water should flow from water outlet of the unit to sanitary tank water inlet when sanitary tank heating is selected. - To verify the flow direction, check temperature at the water outlet of the unit and water inlet of sanitary water tank.
Page 39: 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. General Information supports following 2way valve.
Page 40: Dry Contact
Accessories Installation Dry Contact LG 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 like key-in lock, door or window switch etc specially used in Hotel rooms.
Page 41: Independent Power Module
Accessories Installation Independent Power Module Independent power module is required to protect a plate heat exchanger burst. When the outdoor unit is operating, if Hydro Kit is suddenly powered off, a plate heat exchanger burst may happen dur- ing oil-return and defrosting cycle in cooling mode. How to install Independent Power Module Step 1.
Page 42 Accessories Installation How to wire Independent Power Module Step 1. Turn the power off using circuit breaker. Step 2. Disconnect the EEV cable of the indoor units PCB(CN-EEV) Step 3. Connect the independent power kit(CN-EEV/LOAD) to the indoor units EEV, using harness 1. Step 4.
Page 43: System Set-Up
System Set-Up 6. System Set-Up (For Medium Temperature) is designed to satisfy various installation environment, it is Hydro Kit important to set up system correctly. If not configured correctly, improper operation or degrade of per- formance can be expected. DIP Switch Setting •...
Page 44: Group Control Setting
System Set-Up Group Control Setting Group Control - Wired remote controller 1 + Many of Hydro Kit Slave Slave Slave Master Display Error Message Only connect serial signal and GND lines between slave indoor unit Master Signal 12 V - Dip Switch in PCB ¿...
Page 45 System Set-Up CAUTION: • Indoor unit(Hydro Kit)’s group setting is possible which connected same outdoor unit. • To install Master and Slave indoor unit, the Dip Switch setting should be same. • Group control is not possible between hydro kit and air conditioner. •...
Page 46 System Set-Up NOTICE 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 47 System Set-Up • Following features are permitted in emergency operation : Operation On/Off VIEW TEMP button(*) Temperature adjusting button(**) Sanitary water heating button (*) : Temperature measured by failed sensor is displayed as ‘- -’. (**) : The unit is not turned on/off according to the setting temperature at the remote controller. It is turned on/off according to the thermostat signal •...
Page 48: Installer Setting
System Set-Up Installer Setting How to enter installer setting mode CAUTION: Installer setting mode is to set the detail function of the remote controller. If the installer setting mode is not set correctly, it could cause problems to the unit, user injury or property damage.
Page 49 System Set-Up Summary Example of Fuction Code Display Function Code Value #1 Value #2 Function Default Value #1 Value #2 Remark Test Run 01:01 01 : Set Disable 3 Min. Delay 02:01 01 : NOT connected. Remote Air Sensor Connection 03:01 02 : connected.
Page 50: Common Setting
System Set-Up Common Setting • Function Code 01 : Test Run Test run should be performed when charging the additional refrigerant is required. The unit must be operated in Cooling mode when the refrigerant is being charged. Test run instantly makes the unit operate in Cooling mode for 18 minutes.
Page 51: Temperature Range Setting
System Set-Up Temperature Range Setting • Function Code 11 : Setting Air Temperature in Cooling Mode Determine cooling setting temperature range when air temperature is selected as setting temperature. NOTICE Only available when remote air temperature sensor is connected. • Accessory PQRSTA0 should be installed. •...
Page 52: Temperature Control Parameter Setting And Etc
System Set-Up Temperature Control Parameter Setting and Etc • Function Code 22 : Setting Cut-off Temperature in Cooling Mode (FCU setting included) Determine leaving water temperature when the unit is turned off. This function is used for prevent- ing condensation on the floor in cooling mode. - Value #1 : cut-off temperature.
Page 53 System Set-Up • Function Code 28 and 29 : Setting control parameter for Sanity water heating operation Descriptions for each parameters are as following. - Value #1 of Function Code 28 : temperature gap from Value #2 of Function Code 28. - Value #2 of Function Code 28 : maximum temperature.
Page 54 Determine the difference between target inlet water temperature and target outlet water tem- perature from water flow rate. - Value #1 of Function Code 2C : Water flow rate which flows to Hydro Kit Water flow rate (l/min) Setting value ARNH04GK2A2 ARNH10GK2A2 20~22 45~50 23~24 51~55 25~26 56~60...
Page 55: Test Run
Test Run 7. Test Run Caution before Operation Test • Check whether water flow is smoothly supplied. • Check whether the flow switch properly operates. • Check whether the connection status is good. • Check whether the power cable and communication cable are completely connected. •...
Page 56: Troubleshooting
Test Run Troubleshooting • This function displays the disorder types at the self diagnostics and the occurrence of the dis- order for the product. • The disorder display shows the code in the following table on the red/green LED of the wired remote controller and outdoor unit control board.

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Arnh04gk2a2

LG ARNH10GK2A2 Installation Manual

1 Safety Precautions

2 Installation Parts

3 General Information

4 Installation

5 Accessories Installation

6 System Set-Up

7 Test Run

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