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Preface

This installation manual is to present information and guide about understanding, installing,
and checking .
Your careful reading before installation is highly appreciated to make no mistake and to prevent potential risks.
The manual is divided into nine chapters. These chapters are classified according to installation procedure.
See the table below to get summarized information.

• Warning and Caution concerned with safety.
• This chapter is directly related with human safety. We STRONGLY

recommend reading this chapter carefully.

• Fundamental knowledge about
• Model identification, accessories information, refrigerant and water cycle

diagram, parts and dimensions, electrical wiring diagrams, etc.

• This chapter is important to understand

• Installation about the outdoor unit.
• Installation location, constraints on installation site, etc

• Installation about the indoor unit.
• Installation location, constraints on installation site, etc
• Constrains when accessories are installed

• How to perform piping (for refrigerant) and wiring at the outdoor unit.
• Refrigerant pipe connection between the indoor unit and the outdoor unit.
• Electrical wiring at the outdoor unit.

• How to perform piping (for water) and wiring at the indoor unit.
• Water pipe connection between the indoor unit and pre-built under floor

water loop pipe.

• Electrical wiring at the indoor unit.
• System set-up and configuration.
• As many control parameters of is adjustable by control panel,

deep understanding about this chapter is required to secure the operation
flexibility of

• For more detailed information, please read the separate OPERATION

MANUAL to use control panel and adjust control parameters.

• Information about supported accessories
• Specification, Constraints, and wiring are described.
• Before purchasing accessories, please find supported specification to buy

proper one.

• Test operation and check point while test running.

• Check points before starting operation are explained.
• Troubleshooting, maintenance, and error code list are presented to correct

problems.

Chapters

Contents

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Chapter 7

Chapter 8

Chapter 9

REMARK : ALL CONTENTS OF THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE.
TO GET THE LATEST INFORMATION, PLEASE VISIT LG ELECTRONICS WEB SITE
www.lgservice.com

Preface

6

Air-to-Water Heat Pump

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Содержание AHNW096A0

Страница 1: ... 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 Air to Water Heat Pump ITALIANO ESPAÑOL FRANÇAIS DEUTSCH PORTUGUÊS ENGLISH ...

Страница 2: ...S SUPPORTED BY LG Electronics 12 ACCESSORIES SUPPORTED BY 3rd PARTY COMPANIES 12 TYPICAL INSTALLATION EXAMPLE 13 CASE 1 13 CASE 2 14 CASE 3 15 CYCLE DIAGRAM 16 REFRIGERANT CYCLE 16 WATER CYCLE 18 PARTS AND DIMENSIONS 19 INDOOR UNIT EXTERNAL 19 INDOOR UNIT INTERNAL 21 OUTDOOR UNIT EXTERNAL 21 CONTROL PARTS 24 CONTROL BOX INDOOR UNIT 24 CONTROL PANEL 25 WIRING DIAGRAM INDOOR UNIT 25 CIRCUIT DIAGRAM ...

Страница 3: ...D SANITARY WATER TANK KIT SOLAR THERMAL KIT 38 3WAY VALVE 2WAY VALVE 40 5 PIPING AND WIRING FOR OUTDOOR UNIT 41 REFRIGERANT PIPING 41 CONSTRAINTS IN PIPE LENGTH AND ELEVATION 41 PREPARATION FOR PIPING 42 CONNECTING PIPE TO INDOOR UNIT 43 CONNECTING PIPE TO OUTDOOR UNIT 43 ELECTRICAL WIRING 46 WIRE SPECIFICATION 46 CIRCUIT BREAKER SPECIFICATION 47 WIRING PROCEDURE FOR POWER CABLE AND CONNECTING CAB...

Страница 4: ...ER 66 HOW TO INSTALL SOLAR THERMAL KIT 67 DRY CONTACT 67 REMOTE TEMPERATURE SENSOR 67 3WAY VALVE 68 HOW TO WIRE 3WAY VALVE 68 FINAL CHECK 68 2WAY VALVE 69 GENERAL INFORMATION 69 HOW TO WIRE 2WAY VALVE 69 FINAL CHECK 69 8 SYSTEM SET UP 70 DIP SWITCH SETTING 70 GENERAL INFORMATION 70 DIP SWITCH INFORMATION 71 CONTROL PANEL SETTING 74 HOW TO ENTER INSTALLER SETTING MODE 74 SUMMARY 76 COMMON SETTING 8...

Страница 5: ...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 www lg com OWNER S MANUAL AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference TYPE WALL MOUNTED Outdoor unit UE1 Ch...

Страница 6: ...pe connection between the indoor unit and the outdoor unit Electrical wiring at the outdoor unit How to perform piping for water and wiring at the indoor unit Water pipe connection between the indoor unit and pre built under floor water loop pipe Electrical wiring at the indoor unit System set up and configuration As many control parameters of is adjustable by control panel deep understanding abou...

Страница 7: ...damage The seriousness is classified by the following indications n Meanings of symbols used in this manual are as shown below This symbol indicates the possibility of death or serious injury This symbol indicates the possibility of injury or damage to properties only n Installation Be sure not to do Be sure to follow the instruction Do not use a defective or underrated circuit breaker Use this ap...

Страница 8: ...he main power off when cleaning or maintaining the product There is risk of electric shock Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injury and product damage Do not allow water to run into electric parts There is risk of fire failure of the product or electric shock Do not store or use flammable gas or combustibles near the product T...

Страница 9: ... If power is not supplied some special product protecting actions such as water pump anti locking will not performed n Operation Do not lay on the cooled floor for long time when the product is in cooling operation This could harm to your health Do not use the product for special purposes such as preserving foods works of art etc It is a consumer product not a precision refrigeration system There ...

Страница 10: ...Series Number N Nordic Model Chassis Name Electrical ratings 6 1 phase 220 240V AC 50Hz 8 3 phase 380 415V AC 50Hz Heating Capacity kW 09 9kW 12 12kW 14 14kW 16 16kW Model Type W Inverter Heat Pump H Heat Pump Classification N Indoor Unit U Outdoor Unit Set Air to Water Heat Pump for R410A A H N W 0 9 A 0 6 A 0 Series Number Chassis Name Heater Electrical ratings 6 1 phase 220 240V AC 50Hz 8 3 pha...

Страница 11: ...1 AHNW16806A1 AHNW16606A1 6 3 3 AHNW16A06A1 AHNW16806A1 AHUW128A1 AHUW148A1 AHUW168A1 AHUW146A2 AHUW126A2 Model Name Built In Electric Heater kW 6 3 3 4 2 2 6 2 2 2 AHUW096AN 6 2 2 2 6 2 2 2 6 2 2 2 6 3 3 6 2 2 2 6 3 3 6 2 2 2 Capacity 9 8 6 9 9 12 17 8 14 16 1 Power Source Electric Heater Power Source Unit 16 15 1 3N 220V 50Hz 3N 380V 415V 50Hz 1 220V 240V 50Hz 3N 220V 50Hz 3N 380V 415V 50Hz 1 22...

Страница 12: ...y type 230V AC or 24V AC Cooling Heating type 230V AC or 24V AC with Mode selection switch 3 wire SPDT Single Pole Double Throw type 230V AC 2 wire NO Normal Open or NC Normal Closed type 230V AC Item Purpose Model Sanitary Water Tank Install Kit Remote Air Sensor Dry Contact Solar Heating Kit Sanitary Water Tank To operate with sanitary water tank To control by air temperature To receive on off e...

Страница 13: ...t Floor heating loop Fan coil unit Radiator High Temperature Room Thermostat Field supply 2way valve Field supply By pass valve Field supply Low Temperature Shut off valve Typical Installation Example Note Room thermostat Type of thermostat and specification should be complied with chapter 4 and chapter 7 of installation manual 2way valve It is important to install 2way valve to prevent dew conden...

Страница 14: ...ly 2way valve Field supply 3way valve Field supply By pass valve Field supply Low Temperature Shut off valve Note Sanitary water tank It should be equipped with internal electric heater to generate sufficient heat energy in very cold season 3way valve Type of 3way valve and specification should be complied with chapter 4 and chapter 7 of installation manual General Information 14 Air to Water Heat...

Страница 15: ...diator High Temperature Room Thermostat Field supply 2way valve Field supply 3way valve Field supply By pass valve Field supply Low Temperature Shut off valve Pump Field supply Note Sanitary water tank It should have additional indirect heat exchanger to utilize heat energy by solar thermal system Pump Maximum power consumption of pump should be less than 0 25kW ENGLISH Installation Manual 15 ...

Страница 16: ...r Unit Th8 1 1 Applied Model AHUW128A1 AHUW148A1 AHUW168A1 AHUW096A1 AHUW126A1 AHUW146A1 AHUW166A1 General Information Refrigerant Cycle Vapor Injection INDOOR UNIT OUTDOOR UNIT Indoor Unit Plate Heat Exchanger Outdoor Unit Phase Separator EEV Heat Exchanger COMPRESSOR Accumulator GAS SIDE LIQUID SIDE 3 Way Service Valve 3 Way Service Valve COOLING HEATING Reversing Valve High Pressure Switch Low ...

Страница 17: ... tan k is installed Sanitary water tan k kit is necessary Solar thermal syst em is connected Solar thermal kit i s necessary Basic installation IDU ODU Solar Thermal Componets Fan Coil Unit Underfloor Heating Radiator ENGLISH Installation Manual 17 ...

Страница 18: ...e sensor Liquid side Entering Water temperature sensor Interim Water temperature sensor Leaving Water temperature sensor Flow Switch Electric Heater Internal Water Pump Expansion Tank Remote Air temperature sensor Control Panel or To control water flow for Fan Coil Unit Remote Controller Sanitary Water Tank Electric Heater Flow control for water which is leaving from indoor unit Flow direction swi...

Страница 19: ...nd Dimensions Indoor unit External 315 490 850 315 3 474 Description No Name Remarks 1 Door Control panel is shown after this door is opened 2 Handle Used to cover or uncover the front case unit mm ENGLISH Installation Manual 19 ...

Страница 20: ...ower input to electric heater at 90 C manual return at 55 C 3Ø Electric Heater is applied 9 Control Box PCB and terminal blocks 10 Flow Switch Minimum operation range at 12 LPM 9kW Minimum operation range at 15 LPM 12kW 14kW 16kW 11 Plate Heat Exchanger Heat exchange between refrigerant and water 12 Pressure Gage Indicates circulating water pressure 13 Expansion Tank Absorbing Volume change of hea...

Страница 21: ...nit External Supporter AHUW146A AHUW126A2 490 Description No Name 1 2 3 Liquid side Service Valve Gas side Service Valve Air discharge Grill Product Heating Capacity 12kW 14kW 16kW U3 Chassis unit mm ENGLISH Installation Manual 21 ...

Страница 22: ...General Information Description No Name 1 2 3 4 Liquid side Service Valve Gas side Service Valve Air discharge Grill Cover Product Heating Capacity 9kW UE1 Chassis unit mm 22 Air to Water Heat Pump ...

Страница 23: ...eneral Information Supporter Description No Name 1 2 3 Liquid side Service Valve Gas side Service Valve Air discharge Grill Product Heating Capacity 9kW U4 Chassis unit mm ENGLISH Installation Manual 23 ...

Страница 24: ...al The terminal blocks allow easy connection of field wiring Voltage down 230V AC 24V AC The ELB protects the unit against overload or short circuit The main PCB Printed Circuit Board controls the functioning of the unit Supporter to install Dry Contact sold separately The MCCB protects the unit against overload The MCCB protects the water tank heater in sanitary water tank against overload The EL...

Страница 25: ...rection Button Up Down Left Right Power Button Function Setting Button Temperature Setting Mode Button Temperature View Mode Button Programming Button Set Clear button Pressure gage Description Wiring Diagram Indoor Unit Refer to the wiring diagram inside the control box Circuit Diagram Indoor Unit Refer to the circuit diagram inside the front panel Wiring Diagram Outdoor Unit Refer to the attache...

Страница 26: ...General Information Wiring Diagram Indoor and Outdoor Unit Including Field wiring Indoor Electric Heater 1Ø Outdoor 1Ø 1 230V 50Hz 26 Air to Water Heat Pump ...

Страница 27: ...al Information Wiring Diagram Indoor and Outdoor Unit Including Field wiring Indoor Electric Heater 3Ø Outdoor 1Ø 1 230V 50Hz 3 220V 50Hz or 3 380V 50Hz 3 MCCB MCCB M C M C M C ENGLISH Installation Manual 27 ...

Страница 28: ...ral Information Wiring Diagram Indoor and Outdoor Unit Including Field wiring Indoor Electric Heater 3Ø 220V Outdoor 3Ø 3 380V 50Hz 3 220V 50Hz 1 220V 50Hz 3 MCCB MCCB M C M C M C 28 Air to Water Heat Pump ...

Страница 29: ...neral Information Wiring Diagram Indoor and Outdoor Unit Including Field wiring Indoor Electric Heater 3Ø 380 415V Outdoor 3Ø 3 380V 50Hz 1 220V 50Hz 3 MCCB MCCB M C M C M C ENGLISH Installation Manual 29 ...

Страница 30: ...by arrows around front back and side of the unit Do not place animals and plants in the path of the warm air Take the weight of the outdoor unit into account and select a place where noise and vibration are minimum Select a place so that the warm air and noise from the outdoor unit do not disturb neighbors Conditions where Outdoor Unit is Installed 300 Fence or obstacles 700 300 600 Sunroof If mak...

Страница 31: ...the sea wind 3 Select a well drained place It should be strong enough like concrete to prevent the sea wind from the sea The height and width should be more than 150 of the outdoor unit It should be keep more than 700 mm of space between outdoor unit and the windbreak for easy air flow CAUTION Sea wind Sea wind Sea wind Windbreak Sufficient measures are required in a snow area or severe cold area ...

Страница 32: ... free from outdoor weather conditions such as rain snow wind frost etc Choose the place where is water resistant or good drainage Service space should be secured No flammable materials around the indoor unit Mice can not be appeared to prevent entering the indoor unit or attacking wires Do not place anything in front of the indoor unit to ensure air circulation around the indoor unit Do not locate...

Страница 33: ...the Installation sheet Screw bolts with supporting plate at the hole marks on the wall When screwing bolts use M8 M11 anchor bolts to secure hanging the indoor unit Bottom screws Remove Hall marks The sheet should be attached level If not the supporting plate and the indoor unit will not be mounted correctly Eight small holes around four large hole marks can be used as alternatives of M8 M11 ancho...

Страница 34: ... can cause damage to or malfunction of the unit Operation cutoff range Max Med 0 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 6 0 6 5 7 0 7 5 8 0 0 10 20 30 40 50 60 70 80 90 100 110 12 has different internal water pump according to the product capacity The water pump is three speed adjustable Maximum Medium Minimum so it may be required to change default water pump speed in case of noise by wate...

Страница 35: ...Expansion vessel bar 20 60 100 140 180 220 260 300 340 2 4 2 1 1 7 1 4 1 0 0 7 0 3 Adjusting pre pressure of expansion vessel is as following Step 1 Refer Volume Height table If installation scene is belong to Case A go to Step 2 Otherwise if it is Case B do nothing pre pressure adjustment is not required Otherwise if it is Case C go to Step 3 Step 2 Adjust pre pressure by following equation Pre p...

Страница 36: ... 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 If the product is installed at existing hyd...

Страница 37: ...ect compressor In that case mode change can takes time more than user s expectation Please read thermostat manual carefully if the product does not response quickly 3 Setting temperature range by thermostat can be different with that of the product The heating or cooling set temperature should be chosen within the setting temperature range of the product 4 It is highly recommended that the thermos...

Страница 38: ...e maximum value of the temperature control device of sanitary tank While installing sanitary water tank with sanitary water tank kit or solar thermal kit there are some constraints like below Sanitary water tank should be located under the indoor unit or same height with the indoor unit Sanitary water tank should be located under the solar thermal system Distance between sanitary water tank sensor...

Страница 39: ...ulation 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 x V x 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 pump performance curve The pump operating st...

Страница 40: ...ot be appeared to prevent entering the indoor unit or attacking wires After cutting out the bottom of the indoor unit remove all burrs completely Burrs could cause personal injury 2Way valve should be located between the indoor unit and the water entering point to the under floor See below picture to identify clearly Water In Water Out 2way valve Field Supply domain where 2way valve installed Fan ...

Страница 41: ...to the table Example If 16kW model is installed at a distance of 50m 2 100g of refrigerant should be added according to following formula 50 15 x 60g 2 100g 2 Rated capacity of the product is based on standard length and maximum allowable length is based on the product reliability in the operation 3 Improper refrigerant charge may result in abnormal operation Note Fill in the f gas Label attached ...

Страница 42: ...flaring tool for R 410A refrigerant as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above Step 5 Check Compare the flared work with right figure If flare is seemed to be defective cut off the flared section and do flaring work again Preparation for Piping Preparation for piping is five steps As main cause of refrigerant leakage is defects in flaring work ...

Страница 43: ...ep 2 Tightening Tighten the flare nut with a wrench Tightening torque is as following Step 1 Determine direction of pipes The pipes can be connectable in four directions The directions are expressed in below figure Step 2 Determine direction of pipes in case of downward Torque wrench Indoor unit tubing Open end wrench fixed Connection pipe Flare nut Indoor unit tubing Flare nut Pipings mm inch kgf...

Страница 44: ... it with two kinds of vinyl tape Ensuring thermal insulation is very important Step 5 PCB Setting when pipe is longer than 15m if necessary If pipe length is longer than 15m the PCB setting should be performed according to following procedures 1 Open the control cover of outdoor unit 2 Set to ʻONʼ for 4th switch of 5 pin DIP switch 3 Close the cover and check the product operation Do not open the ...

Страница 45: ...the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Align the center of the piping and sufficiently tighten the flare nut by hand mm inch kgf m Ø6 35 1 4 1 8 2 5 Ø9 52 3 8 3 4 4 2 Ø12 7 1 2 5 5 6 6 Ø15 88 5 8 6 3 8 2 Ø19 05 3 4 9 9 12 1 Outside diameter Torque Torque wrench Outdoor unit Gas side piping Liquid side p...

Страница 46: ...d with IEC 60245 or HD 22 4 S4 Rubber insulated cord type 60245 IEC 66 or H07RN F Electrical Wiring Round pressure terminal Power wire Terminal Specification of Power Cable and related Cautions Use round pressure terminals for connections to the power terminal block Connecting Cable Specification The connecting cable being used to connect the indoor unit and outdoor unit should be complied with IE...

Страница 47: ...anitary Water Tan Heater Circuit Breaker A MOP A Circuit Breaker A MOP A Circuit Breaker A MOP A FLA A Capacity kW RLA A Capacity kW Outdoor Power Supply Power Supply Power Supply Indoor For Electric Heater with S Heater For Electric Heater without S Heater For Heat Pump Sanitary Tank Heater Electric Heater Compressor RLA A FLA A MOP Circuit Breaker Core Component Electrical Spec Model 3 12 5 1Ø 2...

Страница 48: ...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 Provide an ELB electric leakage breaker when the installation place is wet or moist 9 The following troubles would be caused by abnormal voltage supply such as sudden voltage increasing or voltage drop down Chattering of ...

Страница 49: ...d Vinyl tape narrow Pipe Wrap with vinyl tape wide Taping Procedure 1 Tape the pipes connecting cable and power cable from down to up If taping direction is up to down rain drop may be sinking into the pipes or cables 2 Secure the taped pipe along the exterior wall using saddle or equivalent 3 Trap is required to prevent water from entering into electrical parts Trap is required to prevent water f...

Страница 50: ...der to this service port with charge hoses Be sure to use a manifold valve for leakage test If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 3 0 Mpa with dry nitrogen gas and close the cylinder valve when the gauge reading reached 3 0 Mpa Next test for leaks with liquid soap To avoid nitrogen ...

Страница 51: ... gas side valve counter clockwise to fully open the valve 3 Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose 4 Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system 5 Replace the valve caps at bo...

Страница 52: ...necting valves or elbows are for example in this category Configuration of water circuit is shown in Chapter 2 All connections should be complied with presented diagram While installing water pipes followings should be considered While inserting or putting water pipes close the end of the pipe with pipe cap to avoid dust entering When cutting or welding the pipe always be careful that inner sectio...

Страница 53: ...r unit 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 If cold water enters to the r...

Страница 54: ...minute Sudden water supply can yield water drain through safety valve Fully open the cap of air vent to assure air purging If air is exist inside the water circuit then performance degrade noise at the water pipe mechanical damage at the surface of electric heater coil Step 4 Stop water supplying when the pressure gage located in front of the control panel indicates 2 0 bar Step 5 Close drain valv...

Страница 55: ...ed When adjusting or changing wiring the main electricity supply should be turned off and ground wire should be connected securely Installation place should be free from the attack of wild animal For example miceʼs wire attacking or frogʼs entering into the indoor unit may cause critical electrical accident All power connections should be protected from dew condensation by thermal insulation All e...

Страница 56: ...TANK HEATER 3WAY VALVE A 1 L BR WH BL BR BL BR BR WH BL BL 2 L1 3 N 4 L 5 N 6 L 7 N 8 L 9 L1 10 N Power supply for Indoor unit and communication Connection for thermostat 230V AC or 24V AC Supporting type Heating only or Heating Cooling opening or closing water flow for FCU cooling OUTDOOR UNIT 2WAY VALVE A THERMOSTAT Default 230V AC 11 1 L BR 12 2 N BL 13 3 BK 14 L1 BR 15 L2 WH 16 N BL 17 L BR 18...

Страница 57: ...EATER 3WAY VALVE A 1 L BR WH BL BR BL BR BR WH BL BL 2 L1 3 N 4 L 5 N 6 L 7 N 8 L 9 L1 10 N Power supply for Indoor unit and communication Connection for thermostat 230V AC or 24V AC Supporting type Heating only or Heating Cooling opening or closing water flow for FCU cooling OUTDOOR UNIT 2WAY VALVE A THERMOSTAT Default 230V AC 11 1 L BR 12 2 N BL 13 3 BK 14 L1 BR 15 L2 WH 16 N BL 17 L BR 18 N BL ...

Страница 58: ... should be complied with IEC 60245 or HD 22 4 S4 Rubber insulated cord type 60245 IEC 66 or H07RN F If the supply cord is damaged it must be replaced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard 20mm GN YL 1 Phase Ø 3 Phase Ø 20mm GN YL 1Ø Electric Heater 1Ø Electric Heater 3Ø Electric Heater 3Ø Electric Heater L N Separation Power Supply Communic...

Страница 59: ...ctric circuit such as display LED buzzer etc is included in the thermostat and electric power supply is required 3 Thermostat generates ʻHeating ON or Heating OFFʼ signal according to userʼs heating target temperature 4 Thermostat generates both ʻHeating ON or Heating OFFʼ and ʻCooling ON or Cooling OFFʼ signal according to userʼs heating and cooling target temperature Before Installation Thermost...

Страница 60: ... require electric power supply 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 PCB of the indoor unit can be seriously damaged L Live signal from PCB to Thermostat N Neutral signal from PCB to Thermostat H Heating signal from Thermostat to PCB Heating ...

Страница 61: ...c type thermostat Never connect external electric loads such as valves fan coil units etc If connected PCB of the indoor unit can be seriously damaged Thermostat L N C H THERMOSTAT Default 230V AC 17 L BR 18 N BL 19 L1 WH 20 L2 BK Thermostat Icon Thermostat Operation with Control Panel Following features are permitted when thermostat is installed SET TEMP button VIEW TEMP button Temperature adjust...

Страница 62: ...PDT Single Pole Double Throw Three wires consist of Live1 for selecting Flow A Live 2 for selecting Flow B and Neutral for common 2 Flow A means water flow from the indoor unit to under floor water circuit 3 Flow B means water flow from the indoor unit to sanitary water tank Sanitary Water Tank and Sanitary Water Tank Kit Solar Thermal Kit Yes Selecting Flow B between Flow A and Flow B 3 Yes Selec...

Страница 63: ... For more detail information about installing sanitary water tank please refer installation manual provided with sanitary water tank PHS02060310 LGRTV200E PHS03060310 LGRTV300E PHS02060320 LGRTV200VE PHS03060320 LGRTV300VE unit mm ENGLISH Installation Manual 63 ...

Страница 64: ...rt no 6 to ELB MCCB port no 4 Step 4 Connect relay contactor port no 4 and 8 with terminal block 1 port 6 and 7 symbol Ⓓ at the picture Check Polarity Connect relay contact port no 4 to terminal block 1 port 6 Connect relay contact port no 8 to terminal block 1 port 7 Step 5 1Ø Electric Heater Connect ELB MCCB port no 1 and 3 with terminal block 3 port 3 and 4 symbol Ⓔ at the picture 3Ø Electric H...

Страница 65: ...nsor wire should be passed through holes for sensor symbol Ⓑ and Ⓒ at the picture The sensor should be mounted correctly to the sensor hole of sanitary water tank Sensor mounting Insert sensor into sensor socket and bolt it tightly Sanitary Water Tank D A B C Sanitary Water Tank D A B C 1Ø Electric Heater 3Ø Electric Heater ENGLISH Installation Manual 65 ...

Страница 66: ... L Live signal from PCB to Heater N Neutral signal from PCB to Heater Wire specification Cross sectional area of the wire should be 5mm2 Adjusting thermostat temperature To guarantee proper operation it is recommended to set temperature of thermostat to maximum temperature symbol at the picture L N A WATER TANK HEATER BR BL 6 L 7 N L N A WATER TANK HEATER BR BL 6 L 7 N 1Ø Electric Heater 3Ø Electr...

Страница 67: ...upply LG Dry Contact is a solution for automatic control of air conditioning system at the owner s behest 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 How to Install Dry Contact For more information about installing Dry Contact Please refer installation...

Страница 68: ...ircuit both under floor water loop and sanitary water tank loop fully charged If not additional water charging is required Fast valve operation yields noise and vibration Appropriated valve operating time is 60 90 seconds 3way valve should select water tank loop when electric power is supplied to wire W and wire N 3way valve should select under floor loop when electric power is supplied to wire U ...

Страница 69: ...l 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 wire as below NO Live signal for Normal Open type from PCB to 2way valve NC Live signal for Normal Closed typ...

Страница 70: ...onfigured correctly improper operation or degrade of performance can be expected DIP Switch Setting Turn off electric power supply before setting DIP switch Whenever adjusting DIP switch turn off electric power supply to avoid electric shock General Information OFF ON 1 2 3 4 5 6 7 8 OFF is selected ON is selected 70 Air to Water Heat Pump ...

Страница 71: ...ary water tank Solar thermal system is installed Emergency operation Level 4 4 High temperature cycle Low temperature cycle External water pump installation information 5 External water pump is NOT installed 5 External water pump is installed Selecting electric heater capacity 6 7 Step 2 capacity is used Electric heater is not used 6 7 6 7 Step 1 capacity is used Thermostat installation informatio...

Страница 72: ...s trouble is concerned with sensor problems The outdoor unit is operating under emergency mode operation condition which is configured by DIP switch No 4 of the indoor unit PCB Heavy trouble a problem is found inside the outdoor unit As the outdoor unit has problem the emergency mode operation is performed by electric heater located in the indoor unit Option Trouble a problem is found for option o...

Страница 73: ...ht 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 if sanitary water sensor...

Страница 74: ... 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 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 bottom of the LCD screen Repeat pressing button and the function code will...

Страница 75: ... 02 Value 2 Note Default Range 4 Function Description Value 1 Note Default 01 Range 01 02 Value 2 Note Default Range Test Run Instant cooling operation for charging additional refrigerant Disable 3 Min Delay Factory use only Remote Air Sensor Connection Connection information about remote air sensor 01 Remote air sensor is NOT connected and NOT used 02 Remote air sensor is connected and used Celsi...

Страница 76: ...is enabled and Function Code 03 is set as 02 Auto Dry Contact Setting dry contact auto start option If thermostat is used value should be changed from 2 to 1 01 Auto Start OFF 02 Auto Start ON Address Setting Assigning address when central controller is installed If thermostat is used value should be changed from 2 to 1 Setting Air Temperature in Cooling Mode Adjusting range of Setting Air Tempera...

Страница 77: ...r Temperature is used when user wants to set target temperature by room air temperature Lower Limit of setting range FCU is NOT equipped Setting Air Temperature in Heating Mode Adjusting range of Setting Air Temperature in heating mode Upper Limit of setting range Lower Limit of setting range Setting Leaving Water Temperature in Heating Mode Adjusting range of Setting Leaving Water Temperature in ...

Страница 78: ...floor in cooling mode Cut off temperature Value 1 is valid when Value 2 is 01 that means FCU is installed Determines if FCU is installed or not 01 means FCU is NOT installed and 00 means FCU is installed 00 Equipped 01 NOT Equipped Setting outdoor temperature range for Weather dependent operation Setting outdoor Max Min temperature for weather dependent operation Upper Limit of setting range Lower...

Страница 79: ... 1 Monday 2 Saturday 7 Starting Time in 24 hours 00 23 Setting Disinfection Operation Setting disinfection temperature Maximum heating temperature Maximum heating duration in minute Setting control parameter for Sanitary water heating operation See below notes for each values Temperature gap from Value 2 of Function Code 28 Maximum temperature generated by AWHP compressor cycle Setting control par...

Страница 80: ...y tank heating stop time of sanitary tank heating and delay time of sanitary tank heater operating This time duration defines how long time sanitary tank heating can be stopped It is also regarded as time gap between sanitary tank heating cycle Value 3 Note Default Range 20 95 min step 5 min 20 min This time duration defines how long time sanitary tank heater will not be turned on in sanitary wate...

Страница 81: ...but this function code is not set correctly the product can not be controlled by room air temperature Function Code 04 Celsius Fahrenheit Switching Temperature is displayed in Celsius or Fahrenheit Function Code 05 Setting Temperature Selection The product can be operated according to air temperature or leaving water temperature The selection for setting temperature as air temperature or leaving w...

Страница 82: ...tion on the radiator While cooling operation cold water may not flow to the radiator If cold water enters to the radiator dew generation on the surface of the radiator can be occurred Function Code 13 Setting Air Temperature in Heating Mode Determine heating setting temperature range when air temperature is selected as setting temperature Only available when remote air temperature sensor is connec...

Страница 83: ...emperature or room air temperature is far much belower than target leaving water temperature or target room air temperature Function Code 22 Setting Cut off Temperature in Cooling Mode FCU setting included Determine leaving water temperature when the product is turned off This function is used fr preventing condensation on the floor in cooling mode Value 1 cut off temperature Value 1 is valid when...

Страница 84: ...e 1 and Value 2 of Function Code 24 range of auto adjustable target room air temperature Value 1 and Value 2 of Function Code 25 range of auto adjustable target leaving water temperature Note Weather dependent operation is applied for heating mode only Value 1 of Function Code 23 Auto Adjustable Target Temperature Outdoor air temperature Temperature profile of Weather dependent operation Value 2 o...

Страница 85: ...ction mode Vales of Function Code 26 If Value 1 of Function Code 26 is set as ʼ00ʼ that is ʻdisable disinfection modeʼ Value 2 and Value 3 is not used When Value 1 is set as ʼ01ʼ that is ʻenable disinfection modeʼ ʼ Value 2 is displayed at the position of Value 1 and Value 3 is displayed at the position of Value 2 It is due to limited width of the control panel display Sanitary water heating shoul...

Страница 86: ...ure is below 70 C Example If Value 2 is set as ʻ0ʼ that means heating priority is on sanitary water heating sanitary water is heated by AWHP compressor cycle and water heater In this case the under floor can not be heated while sanitary water heating On the other hand if the Value 2 is set as ʻ1ʼ that means heating priority is on under floor heating sanitary tank is ONLY heated by water heater In ...

Страница 87: ... and delay time of sanitary tank heater operating Value 1 of Function Code 2B This time duration defines how long time sanitary tank heating can be continued Value 2 of Function Code 2B This time duration defines how long time sanitary tank heating can be stopped It is also regarded as time gap between sanitary tank heating cycle Value 3 of Function Code 2B This time duration defines how long time...

Страница 88: ...r charging air should be taken out through the hole of the air purge If water does not splash out when the tip at the top of the hole is pressed then air purging is not completed yet If well purged the water will splash out like fountain Be careful when testing air purge Splashed water may make your dress wet Two shut off valves located at the end of water inlet pipe and water outlet pipe of the i...

Страница 89: ...is less than 0 3 bar please recharge the water Close the shut off valves and disassemble strainer Then wash the strainer to make it clean While disassembling the strainer be careful for water flood out Open the switch of the safety valve and check if water is flood out through the drain hose After checking close the safety valve Look and inspect if there is loosen or defected connection on the ter...

Страница 90: ... not splash out when the tip at the top of the hole is pressed then air purging is not completed yet If well purged the water will splash out like fountain Check if pressure gage indicates above 0 3 bar Check if the expansion tank and pressure gage operates well Flood out the water by opening the switch of the safety valve until pressure gage is indicating 2 0 2 5 bar Replace the expansion tank Op...

Страница 91: ... PCB is set as ON Abnormal operation of electric heater Leaving water temperature is above 72 C Thermal fuse is cut off by abnormal overheating of internal electric heater Mechanical fault at the rmal fuse Wire is damaged Incorrect connection between sensor and PCB PCB fault Sensor fault Outdoor temperature is below 25 If there is no problem in electric heater control possible maximum leaving wate...

Страница 92: ...92 Air to Water Heat Pump ...

Страница 93: ......

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