LG ARNH963K2A2 User Manual Download

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P/NO : MFL67086705

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.

TYPE :

(For Medium Temperature)

Hydro Kit

http://www.lghvac.com

www.lg.com

ENGLISH

FRANÇAIS

ESPAÑOL

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Summary of Contents for ARNH963K2A2

Page 1: ...alling 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 TYPE For Medium Temperature Hydro Kit http www lghvac com www lg com ENGLISH FRANÇAIS ESPAÑOL ...

Page 2: ... CABLES 23 5 ACCESSORIES INSTALLATION 24 LOCATION OF ACCESSORIES AND EXTERNAL PARTS CONNECTION 24 WATER PUMP INTERLOCK WIRING FIELD PROVIDED 27 WATER TANK TEMPERATURE SENSOR CONNECTION 27 THERMOSTAT 28 REMOTE TEMPERATURE SENSOR 32 3WAY VALVE 33 2WAY VALVE 34 DRY CONTACT 35 INDEPENDENT POWER MODULE 36 6 SYSTEM SET UP 38 DIP SWITCH SETTING 38 GROUP CONTROL SETTING 39 INSTALLER SETTING 43 7 TEST RUN ...

Page 3: ...ury For antifreeze always contact the dealer or an authorized service center Almost the antifreeze is a toxic product The refrigerant of this product is R410A The installation tool such as manifold gauge should be complied with R410A For installation always contact the dealer or an Authorized Service Center There is risk of fire electric shock explosion or injury Do not install the unit on a defec...

Page 4: ...nit or electric shock Do not store or use flammable gas or combustibles near the unit There is risk of fire or failure of unit Do not use the unit in a tightly closed space for a long time It may cause damage to the unit 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 small or smoke comes...

Page 5: ...water leakage Use two or more people to lift and transport the unit Avoid personal injury n Operation Do not lay on the cooled floor for long time when the unit is in cooling operation This could harm to your health Do not use the unit for special purposes such as preserving foods works of art etc There is risk of damage or loss of property Use a soft cloth to clean Do not use harsh detergents sol...

Page 6: ...nit box P NO MFL67212802 www lg com INSTALLATION MANUAL AIR CONDITIONER ţ Please read this installation manual completely before installing the product ţ Installation work must be performed in accordance with the national wiring standards by authorized personnel only ţ Please retain this installation manual for future reference after reading it thoroughly TYPE For High Temperature Hydro Kit OWNER ...

Page 7: ...related information 1 Tested under Eurovent Heating condition water temperature 30 C 86 F 35 C 95 F at outdoor ambient temperature 7 C 44 F 6 C 42 F 2 Tested under Eurovent Cooling condition water temperature 23 C 73 F 18 C 64 F at outdoor ambient temperature 35 C 95 F 24 C 75 F Type Hydro Kit Model Unit Power Supply Ø V Hz Capacity Cooling kW kcal h Btu h Heating kW kcal h Btu h Net Weight kg lbs...

Page 8: ...ar Thermal System To generate auxiliary heating energy for water tank Thermostat To control the unit by air temperature Heating Only type 1 230 V or 1 24 V Cooling Heating type 1 230 V or 1 24 V AC with Mode selection switch 3way valve and actuator To control water flow for hot water heating or floor heating 3 wire SPDT Single Pole Double Throw type 1 230 V 2way valve and actuator To control water...

Page 9: ... an electrical noise The place where there should not be any heat source or steam near the unit Installation Space The following values are the least space for installation If any service area is needed for service according to field circumstance obtain enough service space The unit of values is mm inch Unit mm inch 100 3 15 16 100 3 15 16 100 3 15 16 100 3 15 16 Base pad 200 7 7 8 631 24 16 19 63...

Page 10: ...s use anti vibration materials cushion pad fully The base pad shall be more than 200 mm 7 7 8 inch Flat washer Anchor bolt Spring washer Nut Anti vibration material Concrete base Support 75 2 15 16 3 or more screw threads of the 2 bolts must be shown Unit mm inch 392 15 7 16 340 13 3 8 Drain pipe connection Hydro Kit does not use the drain pump Do not install in upward direction Install the drain ...

Page 11: ...ng the pipe always be careful that inner section of the pipe should not be defective For example no weldments or no burrs are found inside the pipe Pipe fittings e g L shape elbow T shape tee diameter reducer etc should be tightened strongly to be free from water leakage Connected sections should be leakage proof treatment by applying Teflon tape plumbers putty or other thread sealing material App...

Page 12: ... strainer is not installed component malfunction of Hydro Kit may occur For the strainer use one with 50 mesh or above with measurement diameter of 0 4mm or less Exclude other net Always install the strainer on the horizontal pipe When dirt trash rusted pieces get into the water pipe system it can cause problems to the product by corroding the metallic material 7 Install the air vent 5 at the top ...

Page 13: ... valve 6 and supply the water 7 When installing the water tank insert the water tank temperature sensor 7 to measure the temperature of the water inside the tank For the water tank temperature sensor use the sensor supplied on the product When heating the floor measure the temperature by using the remote controller or remote temperature sensor Separately sold 8 Use the water tank 9 with the heat e...

Page 14: ...ner 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 Within left right 45 degrees Check if there is any leakage on the connecting part Clean the strainer Water In Strainer Side Front 45 ...

Page 15: ...t ensures generating clean hot water Near the Domestic Hot Water DHW tank there should be water supply and water drain for easy access and maintenance PT 1 2 inch Process PT 1 2 inch female bolt Inside water tan Water tank outer wall Sensor holder cap Sensor holder If hot water mode is used make sure to install sensor to water tank Make PT1 2 inch female bolt hole in the water tank and install sen...

Page 16: ...end of pipeʼs diameter Step 3 After Step 2 connect the pipe and solar thermal kit Step 4 Connect solar thermal sensor to ʻCN_TH4ʼ Red connector of the Hydro Kit PCB If the water tank sensor is connected disconnect the sensor from PCB first Solar Thermal System Field Supply Solar Collector Field Supply Water Tank Water Tank Sensor less than 5 meter Solar Thermal Sensor less than 5 meter Water In Wa...

Page 17: ...oor Heating only Without mixing tank Floor heating loop Fan coil unit Radiator M 2 Floor Heating only With mixing tank Floor heating loop Fan coil unit Radiator M WARNING At the installation site where Hydro Kit is combined with a mixing tank each water circulation pump one is installed between Hydro Kit and the mixing tank the other is installed between the mixing tank and indoor units FCU Radiat...

Page 18: ... 3 0 μg l Epichlorohydrin 0 10 μg l Parameter Value Fluoride 1 5 mg l Lead 10 μg l Mercury 1 0 μg l Nickel 20 μg l Nitrate 50 mg l Nitrite 0 50 mg l Pesticides 0 10 μg l Pesticides Total 0 50 μg l Polycyclic aromatic hydrocarbons 0 10 μg l Selenium 10 μg l Tetrachloroethene and Trichloroethene 10 μg l Trihalomethanes Total 100 μg l Vinyl chloride 0 50 μg l 3 Floor Heating Hot water M Floor heating...

Page 19: ... above antifreeze 2 If a antifreeze is used pressure drop and capability degradation of the system can occur 3 If one of antifreezes is used corrosion can occur So please add corrosion inhibitor 4 Please check the concentration of the antifreeze periodically to keep same concentration 5 When the antifreeze is used for installation or operation take care to ensure that antifreeze must not be touche...

Page 20: ...e while brazing If the brazing is done without flowing Nitrogen it can generate a thick oxidized coating within the pipe to interfere with normal operation of valve and compressor etc Insulation Use insulation material with high thermal resistance and rated for the anticipated operating temperature range When installed in humid environment use thicker insulation material as specified by system des...

Page 21: ...n connecting the Hydro Kit The pipe number of the connected gas pipe and liquid pipe must be same Flow water in the Hydro Kit when pipe searching process is performed Pipe searching process error may occur if the pipe temperature does not increase It is recommended that Hydro Kit is connected to No 1 valve and No 2 valve No 1 2 Valve No 3 4 Valve Control No 3 4 Valve Control DIP S W setting No 2 3...

Page 22: ...Make sure to check again and fasten them tightly If they are loose it may cause fire 4 Verify the power supply is within the tolerance range of the nameplate value 10 5 Electrical capacity shall be sufficient 6 The initial voltage shall be maintained at 90 of the rated voltage on the name plate 7 The size of the power wiring complies with the designated specification length and thickness of the po...

Page 23: ...he same transmission line Power cables and communication lines shall not be tied together Classification types Cable cross section Power cable CV mm2 2 5 Communication cable VCTF SB mm2 1 0 1 5 WARNING Are all of the indoor units and outdoor units grounded If grounding is not properly done there is a risk of electric shock Grounding must be done by a qualified technician Consider the surrounding c...

Page 24: ...ccessory supplied by LG and installed by referring to installation manual 3way valve thermostat and pump are external parts for installation which are not supplied by LG After checking each part carefully install external parts respectively Connect the cable of each accessory to the terminal block of the control box in the Hydro Kit Check the label attached on the terminal block to prevent wrong c...

Page 25: ...e connected to the wired remote controller from the rear the top edge and the right side of the subbase If using the top right corner entry points snap off the plastic tab with needle nose pliers as shown Rear entry point Top entry Right side entry 3 Please fix remote controller body to the subbase attached to the surface of the wall Snap the comptroller body onto the subbase by gently pressing al...

Page 26: ...alling the wired remote controller do not bury it in the wall It can cause damage in the temperature sensor Do not install the cable to be 50m or above It can cause communication error When installing the extension cable check the connecting direction of the connector of the remote controller side and the product side for correct installation When roughing in the communication cable provided LG do...

Page 27: ... static head pressure of the system piping and Hydro Kit Select a suitable relay for pump capacity when connecting the pump to the unit Connect the relay to terminals 11 and 12 located in the Hydro Kit control box Connect the domestic hot water tank sensor to PCBʻCN TH4ʼ socket red 11 12 L N Pump main Relay Pump Water tank thermistor Housing CN TH4 CAUTION Make sure to supply external power with t...

Page 28: ... influence may be applied such as above heating radiator or open window 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 Please read thermostat manual carefully if the unit does not response quickly 3 Setting temperature range by thermostat can be different w...

Page 29: ...and cooling target temperature CAUTION Choosing Heating Cooling Thermostat Heating Cooling Thermostat must have Mode Selection feature to distinguish operation mode Thermostat shall be a manual changeover design and be able to accept separate heating and cooling setpoints If above conditions are not kept the unit can not operation properly Heating Cooling Thermostat must send cooling or heating si...

Page 30: ... Thermostat go to step 6 Step 5 Find terminal block and connect wire as below After connecting go to step 6 WARNING 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 type thermostat Never connect external electric loads such as v...

Page 31: ...wire as below WARNING 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 type thermostat Never connect external electric loads such as valves fan coil units etc If connected Main PCB Assembly 1 can be seriously damaged Thermostat ...

Page 32: ...et the option code of the attached controller on the indoor unit In detail refer to installer setting mode Step 4 The Connection wire does not matter if you change the color of the wire because of non polar Fixing screws 60mm Fixing the Remote Sensor 2 1 CAUTION 1 Choose the place where the average temperature can be measured for the indoor unit operates 2 Avoid direct sunlight 3 Choose the place ...

Page 33: ...Double Throw Three wires consist of Live for selecting Flow A Live 1 for selecting Flow B and Neutral for common 2 Flow A means ʻwater flow from the unit to Domestic Hot Water tankʼ 3 Flow B means ʻwater flow from the unit to under floor water circuitʼ How to Wire 3Way Valve Follow below procedures Step 1 Step 2 Step 1 Uncover front cover of the unit and open the control box Step 2 Find terminal b...

Page 34: ...n electric power is NOT supplied the valve is open When electric power is supplied the valve is closed 2 Normal Closed type When electric power is NOT supplied the valve is closed When electric power is supplied the valve is open How to Wire 2Way Valve Follow below procedures Step 1 Step 2 Step 1 Uncover front cover of the indoor unit and open the control box Step 2 Find terminal block and connect...

Page 35: ...l rooms How to Install Dry Contact Connect CN_DRY with Control Unit To apply power source through Dry Contact PCB Dry Contact Dry contact Controller CN CC DRY CONTACT PCB DRY CONTACT PCB INPUT AC 220V LG does not supply this section LG does not supply this section 4 4 3 3 2 2 1 1 2 2 1 1 RY1 RY2 CN_DRY N L Operation Display Error Check Display Dry contact Controller CN_DRY 4 3 2 4 3 2 1 1 2 2 1 1 ...

Page 36: ...ting if Hydro Kit is suddenly powered off a plate heat exchanger burst may happen during oil return and defrosting cycle in cooling mode How to install Independent Power Module Step 1 Open the front panel of the control box Independent Power Module Step 2 Assemble the cover of independent power module fix it tightly with bolts and connect wires ...

Page 37: ...e wire should not be exposed to the outside otherwise it may leads to the malfunction of the independent power kit due to wire damage Wrong wiring also causes the malfunction of the independent power kit or damage to it Power should be supplied more than 20 minutes continuously in order to operate the independent power kit correctly Otherwise the independent power kit can not fully close the EEV d...

Page 38: ...g Function Default 1 2 3 4 5 6 7 8 Group Control x Master Slave Installation Scene x x Floor heating only x Floor heating Hot water solar booster x Floor heating Hot water Hot water only Emergency operation x High temperature operation Low temperature operation Water pump control x Water pump controlled with Hydro Kit Water pump NOT controlled with Hydro Kit Antifreeze operation mode x Nomal opera...

Page 39: ...er only In case of Central controller and Group controller at the same time it is possible to connect standard 2series indoor units or later since Feb 2009 In case of Central controller setting the Central controller can control indoor units after setting only the address of master indoor unit Slave indoor unit will be operated like master indoor unit Slave indoor unit can not be individually cont...

Page 40: ...rate High Middle Low It is not possible at some functions h Master Slave setting of indoor units be set possible using a PCB Dip Switch h It is possible to connect indoor units since Feb 2009 In the other cases please contact LGE h It can be the cause of malfuctions when there is no setting of master and slave Accessories for group control setting Accessories for group control setting Slave Master...

Page 41: ...is classified two levels according to the seriousness of the problem Slight Trouble and Heavy trouble Slight Trouble Sensor trouble Heavy trouble Compressor cycle trouble 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 the system is faced with trou...

Page 42: ...me the system puts higher priority to slight or heavy trouble and operates as if slight or heavy trouble is occurred Therefore sometimes Domestic Hot Water heating can be impossible in emergency operation mode When Domestic Hot Water is not warming up while emergency operation please check whether the Domestic Hot Water sensor and related wiring are connected well or not Emergency operation is not...

Page 43: ...ificated installer and any installation or change that is carried out by a non certificated person should be responsible for the results In this case free service cannot be provided 58 58 78 78 0 16 0 16 57 57 1 Function Code Value Press Function Setting button for 3 seconds to enter the installer setting mode When you enter the installer setting mode initially function code is displayed on the bo...

Page 44: ...ater Temp Domestic Hot Water Heating 15 050 040 50 C 122 F Upper Limit of setting range 30 C 86 F 40 C 104 F Lower Limit of setting range Setting Cut off Temp FCU Cooling Mode 22 016 000 16 C 60 F 25 C 77 F 00 FCU is installed 01 FCU is NOT installed Setting outdoor Temp range Weather dependent operation 23 10 015 10 50 20 68 Upper Limit of setting range 20 4 05 41 Lower Limit of setting range Set...

Page 45: ... or Fahrenheit Function Code 05 Setting Temperature Selection The unit can be operated according to air temperature or leaving water temperature The selection for setting temperature as air temperature or leaving water temperature is determined Note Air temperature as setting temperature is ONLY available when Remote Air Sensor Connection is enabled and Function Code 03 is set as 02 Function Code ...

Page 46: ...e radiator While the unit operates in cooling mode cold water may not flow to the radiator If cold water enters to the radiator dew generation on the surface of the radiator can occur Function Code 13 Setting Air Temperature in Heating Mode Determine heating setting temperature range when air temperature is selected as setting temperature CAUTION Only available when remote air temperature sensor i...

Page 47: ...ration in cooling mode when the leaving water temperature is below 10 C 50 F FCU Installation If FCU is used 2way valve should be installed and connected to the Main PCB assembly 1 If Value 2 is set as ʼ00ʼ but FCU or 2way valve is NOT installed the unit may not operate normally NOTICE Function Code 23 24 and 25 Setting Weather dependent operation Weather dependent operation is that the unit autom...

Page 48: ...ʼs target temperature is set as ʼ50ʼ and Value 1 is set as ʻ3ʼ then water tank heating will be turned off when the water temperature is above 53 C 127 F Water tank heating will be turned on when the water temperature is below 50 C 122 F Example If Value 2 is set as ʻ0ʼ that means heating priority is on Domestic Hot Water heating In this case the under floor can not be heated while Domestic Hot Wat...

Page 49: ...can be continued Value 2 of Function Code 2B This time duration defines how long Domestic Hot Water tank heating can be stopped It is also regarded as time gap between Domestic Hot Water tank heating cycle Example of timing chart Function Code 2C Setting water flow rate Determine the difference between target inlet water temperature and target outlet water temperature from water flow rate Value 1 ...

Page 50: ...een the terminal block and ground is measured with DC mega tester DC 500V Never check insulation resistance for the connector of the control board Operation Test of Water Pipe Category Status Check point Flow Switch Error CH14 Check whether operation of water pipe is normal Check for the block inside water pipe Strainer cleaning valve locked valve malfunction air remaining etc Check problem with f...

Page 51: ... recirculation pump should turn on and turn off is required The operating duration time of the recirculation pump is calculated as follow Duration time minute k V R k 1 2 1 5 is recommended If distance between pump and tank is far then choose high number V Volume of DHW tank liter R Water flow rate of pump liter per minute which is determined by pump performance curve DHW Tank Recirculation Pump E...

Page 52: ...hermostat is installed SET TEMP button VIEW TEMP button Temperature adjusting button DHW 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 Operating mode cooling heating weather dependent selection Time scheduling Operatio...

Page 53: ...ivalent if thermal insulation of water pipe is well performed Noise or water pipe vibration while 3way valve operation Due to surging effect or cavitation effect noise or water pipe vibration can be occurred while 3way valve is operating In that case check followings Is water circuit both under floor water loop and DHW tank loop fully charged If not additional water charging is required Fast valve...

Page 54: ...gnal from indoor unit during specific time 05 Indoor unit outdoor unit communication error No signal communication between indoor unit outdoor unit 06 Liquid side temperature sensor error Liquid side temperature sensor disconnection or short circuit 08 Water tank temperature sensor error Water tank temperature sensor disconnection or short circuit 09 Indoor unit EEPROM error Communication between ...

Page 55: ...ng contractor of your product as warranty service will be provided by them 2 If you have service issues that have not been addressed by the contractor please call 1 888 865 3026 CANADA Service call Number 888 LG Canada 888 542 2623 ...

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