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Hydro Kit

• Duplicated trouble : Option trouble with Slight or Heavy trouble

If option trouble is occurred with slight (or heavy) trouble at the same time, the system puts higher
priority to slight (or heavy) trouble and operates as if slight (or heavy) trouble is occurred.
Therefore, sometimes sanitary water heating can be impossible in emergency operation mode.
When sanitary water is not warming up while emergency operation, please check whether the
sanitary water sensor and related wiring are connected well or not.

• Emergency operation is not automatically restarted after main electricity power is reset.

In normal condition, the unit operating information is restored and automatically restarted after main
electricity power is reset.
But in emergency operation, automatic re-start is prohibited to protect the unit.
Therefore, user must restart the unit after power reset when emergency operation has been
running.

System Set-Up   

Содержание Hydro Kit ARNH04GK2A4

Страница 1: ...re Original instruction INSTALLATION MANUAL AIR TO WATER HEAT PUMP 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 www lg com Copyright 2018 LG Electronics Inc All Rights Reserved MFL6708...

Страница 2: ...al Kit 18 Installation Scenes 19 Refrigerant Piping 22 How to connect wirings 25 Wiring Connection 25 Connecting Cables 27 5 Accessories Installation 28 Location of Accessories and External Parts Connection 28 Main Pump Connection 31 Water tank temperature sensor Connection 31 Thermostat 32 Remote Temperature Sensor 36 3Way Valve 37 2Way Valve 39 Independent Power Module 40 6 System Set Up 42 DIP ...

Страница 3: ...lation Manual 3 ENGLISH 1 Safety Precautions Installation Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock 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 In...

Страница 4: ...damage to the unit Use a vacuum pump or inert nitrogen gas when doing leakage test or purging air Do not compress air or oxygen and do not use flammable gases There is the risk of death injury fire or explosion Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules This equipment shall be provided with a supply conductor complying with the national reg...

Страница 5: ...tric shock Do not open the front cover of the unit while operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or unit failure When the unit is soaked flooded or submerged contact an Authorized Service Center There is risk of fire or electric shock Be cautious that water could not be poured to the unit directly There is risk of f...

Страница 6: ...ch 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 solvents etc There is risk of fire electric shock or damage to the plastic parts of the unit Do not step on or put anything on the unit There is risk of personal injury and failure of unit Use a firm stool or ladder when cleaning or maintaining the unit Be caref...

Страница 7: ...Cable OK 1 Sensor Holder 1 Water Tank Temperature Sensor 1 Strainer 1 Independent Power Module 1 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 ...

Страница 8: ...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 Max Allowable pressure High side 4 2 MPa Low Side 2 4 MPa Max Allowable water temperature High side 50 C Low side 10 C Max Allowable water pressure 0 98 Mpa 0 3 10 kg f cm2 Type Hydro Kit HP Power Supply Ø V Hz Ca...

Страница 9: ...ation Solar 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 cont...

Страница 10: ...is not affected by 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 16 200 7 7 8 631 24...

Страница 11: ...allation status Thus 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...

Страница 12: ...oid dust entering When cutting or welding 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 tefron tape rubber bushi...

Страница 13: ...lled 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 of the water pipe If t...

Страница 14: ...erred from the pump 4 Install the pressure gauge 4 to monitor the water pressure from water tank Option 5 Install the expansion tank 5 to accommodate the water contracted or expanded from the temperature difference and to supply the water 6 After the installation of water pipe system is completed open the water supply valve 6 and supply the water 7 When installing the water tank insert the water t...

Страница 15: ...ection 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 periodically Once a year or more frequent Water In Strainer Side Front 45 ...

Страница 16: ...lean hot water Near the sanitary 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 tank Water tank outer wall Water Tank Temperature Sensor Sensor holder If hot water mode is used make sure to install sensor to water tank Make PT15A female bolt hole in the water tank and install sensor in the water t...

Страница 17: ...al time scheduler to determine when the 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 sanitary water tank liter R Water flow rate of pump liter per minute which is determined by pu...

Страница 18: ...end of pipe s diameter Step 3 After Step 2 connect the pipe and solar thermal kit Step 4 Connect solar thermal sensor to CN_TH4 Red connector of the indoor unit 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...

Страница 19: ...Floor Heating only Without mixing tank Floor heating loop Fan coil unit Radiator 2 Floor Heating only With mixing tank Floor heating loop Fan coil unit Radiator 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 Radiator...

Страница 20: ...ethane 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 Sanitary ...

Страница 21: ... 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...

Страница 22: ...ing within the pipe to interfere with normal operation of valve and compressor etc Insulation Use rubber foamed insulation material EPDM NBR with high thermal resistance When installed in humid environment use thicker insulation material than usual Insert the insulation material within the product as deep as possible h The thickness of the above insulation material is based on thermal conduction r...

Страница 23: ...Kit Up to 16kW 54kBut h capacity model 10HP 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 10HP model is connected to No 1 valve and No 2 valve No 1 2 Valve No 3 4 Valve Control No 3 4 Valve Co...

Страница 24: ... 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 10HP model is connected to No 1 valve and No 2 valve For more detailed information refer to the installation manual of Heat Recovery Unit Valve Group SW01D Setting Valve Group SW01D Setting Not cont...

Страница 25: ...looseness Remove the box cover of electric parts and connect the wiring Wiring Connection Communi cationcable Communi cationcable Power cable Power cable Ground CAUTION When connecting the power and communication cable always use the terminal connector O ring Y ring Make sure to tighten so that the screw of the terminal does not get loose How to connect wirings CAUTION Be sure to test the power li...

Страница 26: ...ent 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the relation between cable length and thickness 8 Do not install the leakage breaker in a place which is wet or moist Water or moist may cause short circuit 9 The following...

Страница 27: ...s shall not be in the same transmission line Power cables and communication lines shall not be tied together 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 conditions surrounding temperature direct sunlight rain water etc when wiring the cabl...

Страница 28: ...ry 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 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 ...

Страница 29: ...ontroller cable into upper and right side please set up after removing remote controller cable guide groove h Remove guide groove with long nose Reclamation to the surface of the wall Upper part guide groove Right part guide groove 3 Please fix remote controller upper part into the setup board attached to the surface of the wall as the picture below and then connect with setup board by pressing lo...

Страница 30: ...s Hydro Kit OK When installing 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 50 m 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 If you install the extension c...

Страница 31: ...acity to guarantee the loss of entire water pressure and to supply the Hydro Kit with water Select a suitable relay for pump capacity when connecting the pump to the unit Connect the relay to the terminal block 11 and 12 of the control box Connect sensor housing to PCB CN TH4 connector red 11 12 L N Pump main Relay Pump Water tank thermistor Housing CN TH4 CAUTION Make sure to supply external powe...

Страница 32: ... 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 with that of the unit The ...

Страница 33: ...ooling target temperature CAUTION Choosing Heating Cooling Thermostat Heating Cooling Thermostat must have Mode Selection feature to distinguish operation mode Heating Cooling Thermostat must be able to assign heating target temperature and cooling target temperature differently If above conditions are not kept the unit can not operation properly Heating Cooling Thermostat must send cooling or hea...

Страница 34: ...ck 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 valves fan coil units etc If connected Main PCB As...

Страница 35: ...Thermostat to PCB H Heating signal from Thermostat to PCB Step 6 Find terminal block and connect 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 a...

Страница 36: ... 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 where the heating devices...

Страница 37: ...s consist of Live for selecting Flow A Live 1 for selecting Flow B and Neutral for common 2 Flow A means water flow from the unit to sanitary water tank 3 Flow B means water flow from the unit to under floor water circuit 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 block and connect wire as below ...

Страница 38: ...t equivalent 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 sanitary water tank loop fully charged If not additional water charging is req...

Страница 39: ... 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 wire as below NO Live signal for Normal Open type from PCB to 2way valve NC Live signal for Normal Closed type from PCB to 2way valve N Neutral s...

Страница 40: ...enly 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 Accessories Installation ...

Страница 41: ...the power WARNING The 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 f...

Страница 42: ...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 operation mode connect short key Antifre...

Страница 43: ...se 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 controlled by Cen...

Страница 44: ...et possible using a PCB DIP Switch 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 PZCWRCG3 Indoor unit 2 EA Wired remote controller PZCWRCG3 cable used for connection OK Master CAUTION Indoor unit Hydro Kit s group setting is possible which connected same outdoor unit To inst...

Страница 45: ...e 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 tr...

Страница 46: ... sanitary water is not warming up while emergency operation please check whether the sanitary water sensor and related wiring are connected well or not Emergency operation is not automatically restarted after main electricity power is reset In normal condition the unit operating information is restored and automatically restarted after main electricity power is reset But in emergency operation aut...

Страница 47: ...staller setting mode is incorrectly set it may cause product failure user s injury or property damage 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 warrenty h Installer setting password Main screen menu setting service RMC ...

Страница 48: ... on the floor in cooling mode Outdoor temp for auto mode Setting outdoor Min Max temperature for auto mode Indoor air temp for auto mode Setting indoor Min Max temperature for auto mode LWT for auto mode Setting heating flow Min Max temperature for auto mode Tank disinfection setting 1 Setting start maintain time for pasteurisation Tank disinfection setting 2 Setting pasteurisation temperature Tan...

Страница 49: ...water flow rate HS Model Setting Setting whether to install HS Model or not Refrigerant Leak Sensor Setting whether to install Refrigerant Leak detector or not IDU Address Verification Displaying the IDU address CN_EXT Setting whether to install IO Module or not ODU Function Master Setting ODU Function Master Low Noise Mode Priority Setting whether to control in IDU or in ODU Mode Standby Piority ...

Страница 50: ...ing 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 Remote Air Sensor Connection is set as 02 Dry Contact Mode This function allows the Dry contact indoor unit operate under Auto Run mode or Manual mode with remote cont...

Страница 51: ... temperature DHW set temp Determine heating setting temperature range of water tank leaving water Air heating set temp Determine heating setting temperature range when air temperature is selected as setting temperature CAUTION Only available when remote air temperature sensor is connected Accessory PQRSTA0 should be installed Also Remote air sensor connection should be set properly NOTICE Water co...

Страница 52: ...and FCU is Use and actually FCU is NOT installed in the water loop the unit stop operation in cooling mode when the leaving water temperature is below 10 C Example If Stop temp is set as 10 and FCU is Not use and actually FCU is installed in the water loop the Stop temp is not used and the unit do NOT stop operation in cooling mode when the leaving water temperature is below 10 C FCU Installation ...

Страница 53: ...ion active is set as Not use that is disable disinfection mode Start date and Start time is not used When Disinfection active is set as Use that is enable disinfection mode Start date is displayed at the position of Disinfection active and Start time is displayed at the position of Start date DHW heating should be enable If Disinfection active is set as Not use that is disable disinfection mode St...

Страница 54: ...perature is above 73 C The water tank heater will be turned on when the water temperature is below 70 C Example If Heating priority is set as DHW that means heating priority is on DHW heating DHW is heated by AWHP compressor cycle and water heater In this case the under floor can not be heated while DHW heating On the other hand if the Heating priority is set as Floor heating that means heating pr...

Страница 55: ...f DHW tank heater operating Active time This time duration defines how long time DHW tank heating can be continued Stop time This time duration defines how long time DHW tank heating can be stopped It is also regarded as time gap between DHW tank heating cycle Boost heater delay time This time duration defines how long time DHW tank heater will not be turned on in DHW heating operation ...

Страница 56: ...eceiving night power timer function from indoor unit Night time power setting Setting to distinguish power on time type of model using night power Th On Th Off 0 0 5 0 5 1 6 4 2 2 4 3 1 1 Th On Th Off 0 0 5 0 5 1 6 4 2 4 2 3 1 1 Th On Th Off 0 2 2 1 6 4 2 2 4 3 1 1 Th On Th Off 0 2 2 1 6 4 2 2 4 3 1 1 TH on off Variable cooling water Setting the step value to adjust water temperature gap in coolin...

Страница 57: ... absence 5 Emergency stop of all indoor units It can be set only when indoor unit has emergency stop function ODU Function Master 1 Setting of outdoor unit function Master status Low noise operation control subject can be set Low noise operation time setting Defrost mode can be set 2 Setting of outdoor unit function Slave status No noise operation control subject setting No noise operation time se...

Страница 58: ...s controlled by outdoor unit according to switch setting value of low noise operation of outdoor unit PCB Function Setting Low noise operation time menu is inactivated 2 Setting remote control management of low noise operation Low noise operation switch setting of outdoor unit PCB is ignored Function Setting Low noise operation time menu is activated ...

Страница 59: ...esistance between 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 ...

Страница 60: ...t 08 Water tank temperature sensor error Water tank temperature sensor disconnection or short circuit 09 Indoor unit EEPROM error Communication between the micro processor the EEPROM Error due to EEPROM damage 13 Solar thermal temperature sensor error Solar thermal temperature sensor disconnection or short circuit 14 Flow switch error Abnormal working of flow switch 15 Water pipe overheated Water ...

Страница 61: ...hich an operator exposed to the noise Also the permissible exposure level can vary from country to country This information however will enable the user of the equipment to make a better evaluation of the hazard and risk Airborne Noise Emission Limiting concentration is the limit of Freon gas concentration where immediate measures can be taken without hurting human body when refrigerant leaks in t...

Страница 62: ...62 Hydro Kit ...

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