Page 2: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS PREFACE [Chapter 1] SAFETY INSTRUCTIONS [Chapter 2] INSTALLATION PART [Chapter 3] GENERAL INFORMATION Model Information Related Information Parts and Dimensions Control Parts (For Split) Control Parts (For Hydrosplit 1-Pipe) Control Parts (For Hydrosplit 2-Pipe) Control Panel Typical Installation Example Cycle Diagram (For R410A)
Page 3 TABLE OF CONTENTS Ventilation requirements Electrical Wiring [Chapter 6] PIPING AND WIRING FOR OUTDOOR UNIT Refrigerant Piping Preparation for Piping Connecting Pipe to Indoor Unit Connecting Pipe to Outdoor Unit Finalizing Leakage test and Evacuation [Chapter 7] PIPING AND WIRING FOR INDOOR UNIT Water Piping and Water Circuit Connection Water pump Capacity Pressure Drop...
Page 4 TABLE OF CONTENTS External Controller - Setting up programmable digital input operation Remote Temperature Sensor Solar pump External pump Wi-ﬁ Modem Smart Grid (For Split R32 Indoor unit 4 Series, For Split R410A Indoor unit 3 Series) Energy State (For Split Indoor unit 5 Series, For Hydrosplit) Digital Input for energy saving (ESS, Smart Grid)(For Split Indoor unit 5 Series, For Hydrosplit) 2Way Valve 3Way Valve(A)
Page 5 TABLE OF CONTENTS Heater on temperature Water supply off temp. during cooling Tank disinfection setting 1, 2 Tank setting 1 Tank setting 2 Heater priority DHW time setting TH on/off Variable, heating air TH on/off Variable, heating water TH on/off Variable, cooling air TH on/off Variable, cooling water Heating temp.
Page 6 TABLE OF CONTENTS LG Therma V Conﬁguration Forced operation Pump Prerun/Overrun Water Flow Control Energy Monitoring (For Split Indoor unit 5 Series, For Hydrosplit 2-Pipe) Anti-Freezing Option 1 (For Split R32 Indoor unit 5 Series, For Split R410A unit 4 Series,...
Page 7 TABLE OF CONTENTS Modbus gateway memory map CN_EXT 3rd Party Boiler Meter Interface Current ﬂow rate Data logging [Chapter 10] COMMISSIONING Check List before Starting Operation Starting Operation Starting Operation ﬂow chart Airborne Noise Emission Limiting concentration(For R410A) Vacuum & Charge of Refrigerant Trouble shooting...
Page 8: Preface
• Troubleshooting, maintenance, and error code list are presented to correct problems. REMARK : ALL CONTENTS OF THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. TO GET THE LATEST INFORMATION, PLEASE VISIT LG ELECTRONICS WEB SITE. * The feature may be vary according to the type of model.
Page 9: [Chapter 1] Safety Instructions
SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS Read the precautions in This appliance is filled this manual carefully with flammable refrigerant before operating the unit. (R32) This symbol indicates that This symbol indicates that a service personnel the Operation Manual should be handling this should be read carefully.
Page 10 SAFETY INSTRUCTIONS • For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. - There is risk of fire or electric shock. • Always ground the unit. - There is risk of fire or electric shock. •...
Page 11 SAFETY INSTRUCTIONS • 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. •...
Page 12 SAFETY INSTRUCTIONS • Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer. (for R32) • Do not pierce or burn. (for R32) • Be aware that refrigerants may not contain an odour. (for R32) •...
Page 13 SAFETY INSTRUCTIONS • Do not allow water to run into electric parts. - There is risk of fire, failure of the unit, or electric shock. • Do not store or use flammable gas or combustibles near the unit. - There is risk of fire or failure of unit. •...
Page 14 SAFETY INSTRUCTIONS • Turn the main power on 6 hours ago before the product starting operation. - Otherwise, it may cause compressor damage. • Do not touch electric parts for 10 minutes after main power off. - There is risk of physical injury, electric shock. •...
Page 15 SAFETY INSTRUCTIONS • The appliance shall be stored in a room without continuously operating open flames (for example an operating gas appliance) and ignition sources (for example an operating electric heater). (for R32) • The appliance shall be stored so as to prevent mechanical damage from occurring.
Page 16 SAFETY INSTRUCTIONS • Do not install the unit in potentially explosive atmospheres. • Connect the water for filling or refilling the heating system as specified by EN 1717/EN 61770 to avoid contamination of drinking water by return flow. Operation • Do not use the unit for special purposes, such as preserving foods, works of art, etc.
Page 17 SAFETY INSTRUCTIONS • 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. Installation work must be performed in accordance with the national wiring standards by authorized personnel only.
Page 18: [Chapter 2] Installation Part
INSTALLATION PART INSTALLATION PART Thank you for choosing LG Electronics Air-to-Water Heat Pump Before starting installation, please make it sure that all parts are found inside the product box. (For Split) INDOOR UNIT BOX Item Image Quantity Item Image Quantity...
Page 19 INSTALLATION PART (For Hydrosplit) INDOOR UNIT BOX Item Image Quantity Item Image Quantity Indoor unit Installation Sheet OUTDOOR UNIT BOX Item Image Quantity Outdoor Unit U60A Chassis Drain Cap Drain Nipple Installation Manual Owner's / Installation manual Strainer Damper...
Page 20 INSTALLATION PART INSTALLATION TOOLS Figure Name Figure Name Screw driver Ohmmeter Electric drill Hexagonal wrench Measuring tape, Knife Ammeter Hole core drill Leak detector Thermometer, Spanner Horizontal meter Torque wrench Flaring tool set Manifold Gauge Vacuum Pump Pliers...
Page 21: [Chapter 3] General Information
Before beginning installation, read this chapter carefully and find helpful information on installation. Energy Labels and Product Fiches for all possible combinations can be found at https://www.lg.com/global/support/cedoc/cedoc. Search for outdoor unit name in cedoc page. Model Information Factory Model Name...
Page 22 GENERAL INFORMATION Buyer Model Name Outdoor unit Indoor unit Type Refrigerant Type Refrigerant 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 H N 16 1 6 · · · NK 3 H U 16 1 ·...
Page 23: Related Information
GENERAL INFORMATION Related Information Unit Heat Pump Backup Heater Outdoor Unit Indoor Unit Capacity Capacity Type Refrigerant Capacity Capacity Power Supply Heating Cooling Power Supply Series Phase Series Phase [kW] [kW] [kW] [kW] [kW] 1Ø 1Ø 220-240 V~50 Hz 6 (3+3) 220-240 V~50 Hz 12.0 10.4...
Page 24: Parts And Dimensions
GENERAL INFORMATION Parts and Dimensions Indoor unit : External (unit : mm) * The feature may be vary according to the type of model. Description Name Remark Control Panel Built-in Remote Controller...
Page 25 GENERAL INFORMATION Indoor unit : Internal - For Split R410A Indoor unit 3 Series (unit : mm) 289.6 11-A 84.5 76 41...
Page 26 GENERAL INFORMATION Indoor unit : Internal - For Split R410A Indoor unit 5 Series (unit : mm) 11-B 84.5 115.5 123.5...
Page 27 GENERAL INFORMATION Indoor unit : Internal - For Split R32 Indoor unit 4 Series (unit : mm) 289.5 11-A 84.9 115.6 123.3 40.7...
Page 28 GENERAL INFORMATION Indoor unit : Internal - For Split R32 Indoor unit 5 Series (unit : mm) 11-B 84.5 115.5 123.5...
Page 29 GENERAL INFORMATION Indoor unit : Internal - For Hydrosplit 1-pipe (unit : mm) 84.5...
Page 30 GENERAL INFORMATION - For Hydrosplit 2-pipe (unit : mm) 307.4 84.5 81.2...
Page 31 GENERAL INFORMATION - For Split Name Remark Leaving Water Pipe Male PT 1 inch Entering Water Pipe Male PT 1 inch Refrigerant Pipe Ø 9.52 mm Refrigerant Pipe Ø 15.88 mm Water Pump Max Head 9.5 / 7 / 6 m Safety Valve Open at water pressure 3 bar Control Box...
Page 32 GENERAL INFORMATION Outdoor unit : External - For Split Product Heating Capacity : 12 kW, 14 kW, 16 kW Chassis : U60A (unit : mm) 4-holes for anchor bolts Supporter...
Page 33 GENERAL INFORMATION Product Heating Capacity : 5 kW, 7 kW, 9 kW Chassis : U36A (unit : mm) 4-holes for anchor bolts Supporter...
Page 34 GENERAL INFORMATION Outdoor unit : External - For Hydrosplit Product Heating Capacity : 12 kW, 14 kW, 16 kW Chassis : U60A (unit : mm) 4-holes for anchor bolts (M10) Description Name Entering Water Pipe Leaving Water Pipe Air discharge Grille...
Page 35: Control Parts (For Split)
GENERAL INFORMATION Control Parts (For Split) Control Box : Indoor Unit 1Ø Electric Heater Model (For R32 Indoor unit 4 Series, For R410A Indoor unit 3 Series) With magnet switch With heater PCB (Production date : Until Sep. 30, 2019) (Production date : From Oct.
Page 36 GENERAL INFORMATION 1Ø Electric Heater Model 3Ø Electric Heater Model (For R32 Indoor unit 5 Series, (For R410A Indoor unit 5 Series) For R410A Indoor unit 5 Series) Description Name Remark Terminal blocks The terminal blocks allow easy connection of field wiring Unit ELB The ELB protects the unit against overload or short circuit Booster heater ELB...
Page 37: Control Parts (For Hydrosplit 1-Pipe)
GENERAL INFORMATION Control Parts (For Hydrosplit 1-Pipe) Control Box : Indoor Unit Description Name Remark Terminal blocks The terminal blocks allow easy connection of field wiring The Main PCB(Printed Circuit Board) controls the functioning Main PCB of the unit...
Page 38: Control Parts (For Hydrosplit 2-Pipe)
GENERAL INFORMATION Control Parts (For Hydrosplit 2-Pipe) Control Box : Indoor Unit Description Name Remark Terminal blocks The terminal blocks allow easy connection of field wiring The Main PCB(Printed Circuit Board) controls the functioning Main PCB of the unit...
Page 39: Control Panel
GENERAL INFORMATION Control Panel Operation display window Back button On/Off Button OK Button Up/Down/Left/Right Button Operation display window Operation and Settings status display When you move to the previous stage from the menu’s Back button setting stage Up/down/left/right button When you change the menu’s setting value OK button When you save the menu’s setting value On/Off button...
Page 40: Typical Installation Example
GENERAL INFORMATION Typical Installation Example CAUTION is installed with pre-existing boiler, the boiler and should not be operated together. If entering water temperature of is above 55 °C, the system will stop operation to prevent mechanical damage of the product. For detailed electric wiring and water piping, please contact authorized installer.
Page 41 GENERAL INFORMATION CASE 2: Connecting DHW Tank Outdoor Indoor Indoor Unit Outdoor Unit Buffer Tank M / F Hot water Fan coil unit Floor heating loop Radiator tank tank tank City water NOTE • DHW tank - It should be equipped with booster heater to generate sufficient heat energy in very cold season.
Page 42 GENERAL INFORMATION CASE 3: Connecting Solar thermal system Outdoor Indoor Indoor Unit Outdoor Unit Buffer Tank M / F Solar heat source Hot water Fan coil unit Floor heating loop Radiator tank tank tank City water NOTE • DHW tank - It should be equipped with booster heater to generate sufficient heat energy in very cold season.
Page 43 GENERAL INFORMATION CASE 4-1: Connecting 2 Circuit (For Split R32 Indoor unit 4 Series, For Split R410A Indoor unit 3 Series) [Circuit 2] Mixing circuit Outdoor Indoor circuit temp. sensor Indoor Unit Outdoor Unit Mix Kit Floor heating loop Floor heating loop Buffer Tank M / F...
Page 44 GENERAL INFORMATION CASE 4-3: Connecting 2 Circuit (For Hydrosplit) [Circuit 2] Mixing Circuit circuit temp. sensor Outdoor Indoor Outdoor Unit Indoor Unit Mix Kit Floor Floor heating loop heating loop Buffer Tank [Circuit 1] Direct Circuit M / F Hydronic Strainer separator Radiator...
Page 45 GENERAL INFORMATION CASE 5: Connecting 3 Party Boiler 3 Way Valve direction Boiler On : Boiler Off : Outdoor Indoor Indoor Unit Boiler Outdoor Unit Buffer Tank M / F Floor Floor Floor heating loop heating loop heating loop NOTE •...
Page 46: Cycle Diagram (For R410A)
GENERAL INFORMATION Cycle Diagram (For R410A) Outdoor unit 3 Series LIQUID SIDE Service Indoor Unit Valve Plate Heat (3 way) Exchanger Water. Out Outdoor Unit Heat Exchanger Water. In 4 way Valve GAS SIDE Service (Accessories) Valve (3 way) Accumulator Compressor Outdoor unit 4 Series LIQUID SIDE...
Page 47 GENERAL INFORMATION Description Category Symbol Meaning Remarks Connector Pressure sensor CN_H_PRESS Condenser middle temperature CN_MID sensor Compressor-discharge pipe CN_DISCHA temperature sensor Outdoor Compressor-suction pipe CN_SUCTION Unit temperature sensor - Description is expressed based on Condenser temperature sensor CN_C_PIPE Cooling mode. Outdoor air temperature sensor CN_AIR Electronic Expansion Valve...
Page 48 GENERAL INFORMATION Cycle Diagram (For R32 Split) <Refrigerant Side> <Water Side> : Cooling : Heating Pressure Sensor Pressure Switch <Indoor Unit> Air Vent A8/A9 Mufﬂer Accumulator Expansion Tank EEV1 Relief valve Water Air Vent Pressure Sensor/ Pressure Gauge EEV3 (Inj.EEV) Water In Strainer Flow...
Page 49 GENERAL INFORMATION Cycle Diagram (For Hydrosplit 1-Pipe) <Refrigerant Side> <Water Side> : Cooling : Heating Indoor Unit <Accessory> Air Vent A8/A9 Pressure Expansion Tank Sensor Pressure Switch Relief valve Mufﬂer Accumulator Pressure Air Vent Sensor EEV1 Flow Sensor Water EEV2 (Inj.EEV) Water In Strainer...
Page 50 GENERAL INFORMATION Cycle Diagram (For Hydrosplit 2-Pipe) <Refrigerant Side> <Water Side> : Cooling : Heating <Outdoor unit> <Indoor Unit> <Accessory> Air Vent A8/A9 <Accessory> Pressure Sensor Expansion Tank Pressure Switch Relief valve Mufﬂer Pressure Air Vent Sensor Accumulator EEV1 Flow Sensor Water EEV2 (Inj.EEV)
Page 51: Water Cycle (For R410A)
GENERAL INFORMATION Water cycle (For R410A)
Page 52 : Solar panel, Sensors, Thermostats, Interim heat SOLAR party accessory and Field installation exchanger, Water pump, etc. THERMAL (no connector) - To utilized hot water heated by SOLAR THERMAL (sold separately) SYSTEM SYSTEM, end-user must install Solar-Kit accessory (PHLLA) provided by LG...
Page 53 GENERAL INFORMATION Water cycle (For Split R32)
Page 54 GENERAL INFORMATION Description (For Split R32) Category Symbol Meaning PCB Connector Remarks Refrigerant temperature sensor (Gas side) CN_PIPE_OUT - NTC5kOhm Refrigerant temperature sensor (Liquid side) CN_PIPE_IN - NTC5kOhm CN_TH3 Entering water temperature sensor (WATER IN) CN_TH3 - NTC5kOhm - S11,S12 and S13 are connected at Leaving water temperature sensor (PHEX OUT) 6-pin-type connector CN_TH3...
Page 55 GENERAL INFORMATION Water cycle (For Hydrosplit 1-Pipe)
Page 56 GENERAL INFORMATION Water cycle (For Hydrosplit 2-Pipe)
Page 57 GENERAL INFORMATION Description (For Hydrosplit) Category Symbol Meaning PCB Connector Remarks Refrigerant temperature sensor (Liquid side) CN_PIPE_IN Meaning is expressed based on Cooling mode. Inlet water temperature sensor CN_WATER_IN Entering water temperature sensor Outlet water temperature sensor CN_WATER_OUT Leaving water temperature sensor Outdoor Unit - 3rd party accessory and Field installation (sold...
Page 58: Installation Of Outdoor Unit
INSTALLATION OF OUTDOOR UNIT INSTALLATION OF OUTDOOR UNIT The outdoor unit of is installed outside to exchange heat with ambient air. Therefore, it is important to secure proper space around the outdoor unit and care for specific external conditions. This chapter presents a guide to install the outdoor unit, make a route to connect with the indoor, and what to do when installed around seaside.
Page 59: Multiple Installation
INSTALLATION OF OUTDOOR UNIT Multiple installation When installing two or more units, please observe the installation space. - If there is an obstruction in the intake Unit : mm - If there is an obstruction in the discharge part Unit : mm...
Page 60 INSTALLATION OF OUTDOOR UNIT - When there is an obstacle in the suction or discharge part Unit : mm L > H L > H ≤ ≤ - Multiple installation on the roof Unit : mm ≤...
Page 61: Transporting The Unit
INSTALLATION OF OUTDOOR UNIT Transporting the Unit • When carrying the suspended unit, pass the ropes between legs of base panel under the unit. • Always lift the unit with ropes attached at four points so that impact is not applied to the unit. •...
Page 62 INSTALLATION OF OUTDOOR UNIT CAUTION Be very careful while carrying the product. • Do not have only one person carry product if it is more than 20 kg. • PP bands are used to pack some products. Do not use them as a mean for transportation because they are dangerous.
Page 63: Installation At Seaside
INSTALLATION OF OUTDOOR UNIT Installation at Seaside CAUTION • Unit should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced. • Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result corrosion on the product.
Page 64: Seasonal Wind And Cautions In Winter
INSTALLATION OF OUTDOOR UNIT Seasonal wind and cautions in winter • Sufficient measures are required in a snow area or severe cold area in winter so that product can be operated well. • Get ready for seasonal wind or snow in winter even in other areas. •...
Page 65: Installation Of Indoor Unit
INSTALLATION OF INDOOR UNIT INSTALLATION OF INDOOR UNIT The indoor unit of is installed inside where terminal of under floor water pipe cycle and refrigerant pipe from the outdoor unit are accessible at the same time. In this chapter conditions for installation place is described. In addition, considerations when installing accessories or 3rd party accessories are described, too.
Page 66 INSTALLATION OF INDOOR UNIT Mounting to Wall Step 1. Disconnect the remote control case from the front panel and disconnect the remote control cable. CAUTION After installation is completed, return the remote control to its original state. NOTE Use a flat-blade screwdriver or a coin to remove the remote control case. Step 2.
Page 67 INSTALLATION OF INDOOR UNIT Step 4. Detach the Installation sheet. Screw bolts at the hole marks on the wall. When screwing bolts, use M8 ~ M11 anchor bolts to secure hanging the indoor unit. NOTE Self drilling screw can be used as alternatives of M8 ~ M11 anchor bolts. But M8 ~ M11 anchor bolts are more preferred.
Page 68: Floor Area Requirement : Indoor Unit (For R32 Split)
INSTALLATION OF INDOOR UNIT Floor area requirement : indoor unit (For R32 Split) ) is in system ≥1.842 kg, additional minimum floor area - If the total refrigerant charge (m requirements is complied in the following flow chart. Room A Room B >...
Page 69: Ventilation Requirements
INSTALLATION OF INDOOR UNIT Ventilation requirements • Two ventilation openings, one at bottom, another at top, for ventilation purposes are made between room A and room B. • Bottom opening : - Must comply to the minimum area requirement of AV - Opening must be located 300 mm from the floor.
Page 70 INSTALLATION OF INDOOR UNIT Table 2 - Minimum floor area Minimum Floor Area A Minimum Floor Area A Total Ref. Total Ref. Amount m Based on h Amount m Based on h (kg) (kg) 1.84 6.15 5.71 5.33 4.99 4.70 4.44 2.82 14.42 12.43 10.83 9.52 8.43 7.52 1.86...
Page 71 INSTALLATION OF INDOOR UNIT Table 3 - Minimum venting opening area for natural ventilation Minimum opening area Anv (Based on h 1.3 m) room Total Ref. Amount m (kg) Minimum opening area Anv (Based on h 1.4 m) room Total Ref. Amount m (kg)
Page 72 INSTALLATION OF INDOOR UNIT Minimum opening area Anv (Based on h 1.5 m) room Total Ref. Amount m (kg) Minimum opening area Anv (Based on h 1.6 m) room Total Ref. Amount m (kg)
Page 73 INSTALLATION OF INDOOR UNIT Minimum opening area Anv (Based on h 1.7 m) room Total Ref. Amount mc (kg) Minimum opening area Anv (Based on h 1.8 m) room Total Ref. Amount m (kg) NOTE : Installation height, height measured from the bottom of the casing to the floor - For intermediate A values, the value that corresponds to the lower A value from...
Page 74: Electrical Wiring
INSTALLATION OF INDOOR UNIT Electrical Wiring Two kind of cables should be connected to the outdoor unit : One is ‘Power cable’, the other one is ‘Connecting cable’. Power cable is a cable which is used to supply external electricity to the outdoor unit.
Page 75 INSTALLATION OF INDOOR UNIT Precautions when laying power wiring Use round pressure terminals for connections to the power terminal block. Power wire Round pressure terminal When none are available, follow the instructions below. - Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring may cause abnormal heat.) - When connecting wiring which is the same thickness, do as shown in the figure below.
Page 76 INSTALLATION OF INDOOR UNIT Point for attention regarding quality of the public electric power supply - European/International Technical Standard setting the limits for voltage changes, voltage fluctuations and flicker in public low-voltage supply systems for equipment with rated current ≤ 75 A. - European/International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low-voltage systems with input current ≤16 A of >...
Page 77 INSTALLATION OF INDOOR UNIT R410A Split 4 series For 1 Phase (12, 14, 16 kW) This equipment complies with IEC (EN) 61000-3-12 in harmonic currents emission limits corresponding Rsce =33. This device is intended for the connection to a power supply system with a maximum of 0.3268 Ω...
Page 78 INSTALLATION OF INDOOR UNIT Circuit Breaker Speciﬁcation Perform the electrical wiring work according to the electrical wiring connection. - All wiring must comply with local requirements. - Select a power source that is capable of supplying the current required by the unit. - Use a recognized ELCB(Electric Leakage Circuit Breaker) between the power source and the unit.
Page 79 INSTALLATION OF INDOOR UNIT - Power Supply for Heat Pump Indoor Unit Power Source Communication ELCB Switch Box Outdoor Unit - Power Supply for Backup Heater Indoor Unit Power Source Communication ELCB Switch Box Outdoor Unit - Power Supply for DHW Booster Heater Tank kit Indoor Tank...
Page 80: Piping And Wiring For Outdoor Unit
PIPING AND WIRING FOR OUTDOOR UNIT Procedures about refrigerant piping and electric wiring at the outdoor are described in this chapter. Most of procedures are similar to those of LG Air Conditioner. *Pipes and wires should be purchased separately for installation of the product.
Page 81: Preparation For Piping
PIPING AND WIRING FOR OUTDOOR UNIT Preparation for Piping - Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. - Use the de-oxidised copper as piping materials to install. Step 1. Cut the pipes and the cable. Copper - Use the accessory piping kit or the pipes Slanted Uneven Rough...
Page 82: Connecting Pipe To Indoor Unit
PIPING AND WIRING FOR OUTDOOR UNIT Connecting Pipe to Indoor Unit Connecting pipe to the indoor unit is two steps. Read following directions carefully. Step 1. Pre-tightening. - Align the center of the pipes and sufficiently tighten the flare nut by hand. Indoor unit tubing Flare nut Pipings...
Page 83 PIPING AND WIRING FOR OUTDOOR UNIT Step 2. Tightening Continuous - Align the center of the pipes and sufficiently tighten the flare nut by hand. - Tighten the flare nut with a wrench until the wrench clicks. - Tightening torque is as following. Outside diameter [mm(inch)] Torque [kgf·m] 6.35 (1/4) 1.8 ~ 2.5...
Page 84 PIPING AND WIRING FOR OUTDOOR UNIT Step 3. : Use cable clamps (or cord clamps) to prevent unintended move of Power cable and Connecting cable. Step 4. : Reassemble the side panel to the outdoor unit by fastening screws. Control Terminal (Terminal for Connecting Cable) Main Power...
Page 85: Finalizing
PIPING AND WIRING FOR OUTDOOR UNIT CAUTION The Power cord connected to the unit should be selected according to the following specifications. Finalizing After pipes are connected and electric cables are wired, pipe forming and some tests are remained. Especially, careful attention is required while proceeding leakage test because the Seal a small leakage of the refrigerant effects degrade of performance directly.
Page 86: Leakage Test And Evacuation
PIPING AND WIRING FOR OUTDOOR UNIT CAUTION Leakage test and Evacuation Air and moisture remaining in the refrigerant Be sure to use a manifold valve for system have undesirable effects as indicated leakage test. If it is not available, use a below.
Page 87 PIPING AND WIRING FOR OUTDOOR UNIT Indoor unit Evacuation - Connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the "Lo and Hi" knob of the manifold valve is open.
Page 88 PIPING AND WIRING FOR OUTDOOR UNIT Wiring Procedure for Power Cable and Connecting Cable (For Hydrosplit) This cable is generally connected between external power source (such as main electric power distribution panel of user's house) and the unit. Before starting wiring, check if wire specification is suitable and read following directions and cautions VERY carefully.
Page 89 PIPING AND WIRING FOR OUTDOOR UNIT Step 2. : Connect power cable to main power terminal See below figure for detailed information. When connecting earth cable, the diameter of cable should be refer to the below table. The earth cable is connected to the Control box case where earth symbol is marked.
Page 90: Piping And Wiring For Indoor Unit
PIPING AND WIRING FOR INDOOR UNIT PIPING AND WIRING FOR INDOOR UNIT Procedures about water piping and electric wiring at the indoor unit are described in this chapter. Water piping and water circuit connection, water charging, pipe insulations will be shown for water piping procedures.
Page 91 It is normal condition because the sound is due to leakage of charged nitrogen gas inside the valve. The nitrogen gas is applied to secure quality assurance. - For Split R32 Indoor unit 4 Series, For Split R410A Indoor unit 3 Series : LG Supply (Inside ‘AWHP Installation Kit’) - For Split 5 series, For Hydrosplit : Field Supply •...
Page 92 PIPING AND WIRING FOR INDOOR UNIT Water Charging For water charging, please follow below procedures. Step 1. Open all valves of whole water circuit. Supplied water should be charged not only inside the indoor unit, but also in the under floor water circuit, sanitary water tank circuit, FCU water circuit, and any other water circuits controlled by the product.
Page 93: Water Pump Capacity
PIPING AND WIRING FOR INDOOR UNIT Water pump Capacity The water pump is variable type which is capable to change flow rate, so it may be required to change default water pump capacity in case of noise by water flow. In most case, however, it is strongly recommended to set capacity as Maximum.
Page 94: Performance Curve
PIPING AND WIRING FOR INDOOR UNIT Performance curve Indoor : Electric Heater 1Ø, Indoor : Electric Heater 3Ø Pump model : PY-122NDDD3 (For Split R410A Indoor unit 3 Series) 8 000 7 000 6 000 5 000 4 000 3 000 2 000 1 000...
Page 95 PIPING AND WIRING FOR INDOOR UNIT MGQ62321902 : UPM3K GEO 20 - 75 CHBL (5 kW, 7 kW, 9 kW / For Split R32) QH Chart Q [m MGQ62321901 : UPML GEO 20-105 CHBL (12 kW, 14 kW, 16 kW / For Split R410A Indoor unit 5 Series, For Hydrosplit) QH Chart Q [m Performance test based on standard ISO 9906 with pre-pressure 2.0bar and liquid temperature...
Page 96: Water Quality
PIPING AND WIRING FOR INDOOR UNIT Water Quality Water quality should be complied with EN 98/83 EC Directives. Detailed water quality condition can be found in EN 98/83 EC Directives. CAUTION • If the product is installed at existing hydraulic water loop, it is important to clean hydraulic pipes to remove sludge and scale.
Page 97: Frost Protection By Antifreeze Valve (For Hydrosplit)
PIPING AND WIRING FOR INDOOR UNIT Frost protection by antifreeze valve (For Hydrosplit) About antifreeze valve This is a valve to prevent freeze in winter. When no antifreeze is added to the water, you can use antifreeze valves at all lowest points of the field piping to drain the water from the system before it can freeze To install antifreeze valve To protect the field piping against freezing, install the following parts:...
Page 98 PIPING AND WIRING FOR INDOOR UNIT NOTE • Do not make any trap connections. If the shape of the connection pipe has the potential to create a trap effect, part of the pipe will not be able to drain and frost protection will no longer be guaranteed.
Page 99: Water Volume And Expansion Vessel Pressure
PIPING AND WIRING FOR INDOOR UNIT Water Volume and Expansion Vessel Pressure Inside expansion vessel is included which is 8 liter capacity with 1 bar pre-pressure. That means, according to the volume-pressure graph, total water volume of 230 liter is supported as default. If total water volume is changed because of installation condition, the pre-pressure should be adjusted to secure proper operation.
Page 100: Electrical Wiring
PIPING AND WIRING FOR INDOOR UNIT Electrical Wiring General Consideration Followings are should be considered before beginning indoor unit wiring. - Field-supplied electrical components such as power switches, circuit breakers, wires, terminal boxes, etc should be properly chosen with compliance with national electrical legislation or regulation.
Page 101 PIPING AND WIRING FOR INDOOR UNIT Terminal Block Information (For Split R32 Indoor unit 4 Series, For Split R410A Indoor unit 3 Series) Symbols used below pictures are as follows : - L, L1, L2 : Live (230 V AC) - N : Neutral (230 V AC) - BR : Brown, WH : White, BL : Blue, BK : Black Terminal Block 1...
Page 103 PIPING AND WIRING FOR INDOOR UNIT Terminal Block Information (For Hydrosplit 1-Pipe) Symbols used below pictures are as follows : - L, L1, L2, L3 : Live (230 V AC) - N : Neutral (230 V AC) - BR : Brown, WH : White, BL : Blue, BK : Black Terminal Block 1 energizing water water ﬂow switching between...
Page 104 PIPING AND WIRING FOR INDOOR UNIT CAUTION You should separate the communication wiring, in case of communication wiring length is over 40 m. Shield Separation cable Power Supply Communication Wiring Connecting with Outdoor Unit 1(L) 2(N) 3 Terminal block at outdoor unit 1(L) 2(N) 3 (For Split R410A Indoor unit 3 Series, For Split R32 Indoor unit 4 Series) 1(L) 2(N) 3...
Page 105 PIPING AND WIRING FOR INDOOR UNIT Backup Heater Wiring CAUTION Power Cable Specification : The power cord connected to the outdoor unit should be complied with IEC 60245 or HD 22.4 S4(Rubber insulated cord, type 60245 IEC 66 or H07RN-F) 1 Phase(Ø) 3 Phase(Ø) NORMAL...
Page 106 PIPING AND WIRING FOR INDOOR UNIT CAUTION External power supply (same dedicated power supply for the indoor unit and outdoor unit) 1Ø Backup Heater 3Ø Backup Heater (For Split R410A Indoor unit 5 Series, (For Split R410A Indoor unit 5 Series) For Split R32 Indoor unit 5 Series) External power supply (same dedicated power...
Page 107 R410A Split Hydrosplit R32 Split Item Purpose Model 3 Series 5 series 1-Pipe 2-Pipe 4 Series 5 series 1Φ 3Φ 1Φ 3Φ PHLTA : 1Ø To operate w ith DHW DHW Tank Kit tank PHLTC : 3Ø Remote Air To control by air PQRSTA0 Sensor temperature...
Page 108 R410A Split Hydrosplit R32 Split Item Purpose Model 3 Series 5 series 1-Pipe 2-Pipe 4 Series 5 series 1Φ 3Φ 1Φ 3Φ PI485 To use Central Controller PP485A00T Cloud Gatew ay To use Becon cloud PWFMDB200 To enable remote system Wi-Fi Modem PWFMDD200 operation from smartphone...
Page 109: Accessories Installation
ACCESSORIES INSTALLATION CAUTION • Install the drain pan when cooling. • If not installed, water may form. • Please refer to separate installation manual when installing drain pan. Accessories supported by 3rd party Companies Item Purpose Specification (For Split Indoor unit 5 Series, For Hydrosplit) To generate auxiliary heating •...
Page 110: Before Installation
ACCESSORIES INSTALLATION Before Installation WARNING Followings should be kept before installation • Main power must be turned off during installing accessories. • 3rd party accessories should be comply with supported specification. • Proper tools should be chosen for installation. • Never do installation with wet hands. Thermostat Thermostat is generally used to control the product by air temperature.
Page 111 ACCESSORIES INSTALLATION General Information The Heat Pump supports following thermostats. Type Power Operating Mode Supported Heating Only (3) Mechanical 230 V~ Heating / Cooling (4) Heating / Cooling / DHW Heating (5) Heating Only (3) Electrical 230 V~ Heating / Cooling (4) Heating / Cooling / DHW Heating (5) (1) There is no electric circuit inside the thermostat and electric power supply to the thermostat is not required.
Page 112 ACCESSORIES INSTALLATION How to wire thermostat (For Split R32 4 Series, For Split R410A 3 Series) Follow below procedures Step 1 ~ Step 5. Step 1. Uncover front cover of the unit and open the control box. Step 2. Identify the power specification of the thermostat. If it is 220-240 V~, go to Step 3. Step 3.
Page 113 ACCESSORIES INSTALLATION How to wire Heating / Cooling / DHW Heating thermostat (For Split Indoor unit 5 Series, For Hydrosplit) Follow below procedures Step 1 ~ Step 3. Step 1. Uncover front cover of the unit and open the control box. Step 2.
Page 114 ACCESSORIES INSTALLATION Final check • DIP switch setting : Set DIP switch No. 8 to ‘ON’. Otherwise, the unit can not recognize the thermostat. • Remote Controller : - ‘Thermostat’ text is displayed on the remote controller. - Only the water temperature setting is available and the other button input is prohibited. - In case of Heating / Cooling / DHW Heating thermostat, select ‘Heat&Cool / DHW' as the Thermostat Control Type in the remote controller installer settings.
Page 115 ACCESSORIES INSTALLATION Circuit The 2nd circuit is generally used to control the temperature of 2 rooms differently. To use the 2nd Circuit, you need to prepare a separate Mix Kit. The mix kit must be installed in the circuit 2. - For Split R32 Indoor unit 4 Series, For Split R410A Indoor unit 3 Series [Install Guide 2 Circuit Heating]...
Page 116 ACCESSORIES INSTALLATION How to Wire Mix Pump, Mixing Valve and Thermistor for 2nd Circuit (For Split R32 4 Series, For Split R410A 3 Series) Follow below procedures Step 1 ~ Step 3. Step 1. Uncover front cover of the unit. Step 2.
Page 117 ACCESSORIES INSTALLATION [Thermistor for 2 circuit] Sensor Sensor Holder Sensor Connector Follow below procedures step 1 ~ step 4. Step 1. Install sensor connector to discharge pipe of mix pump. (Welding must be performed to connect the sensor connector to the pipe) Step 2.
Page 118 ACCESSORIES INSTALLATION How to Wire Mix Pump, Mixing Valve and Thermistor for 2nd Circuit (For Split Indoor unit 5 Series, For Hydrosplit) Follow below procedures Step 1 ~ Step 3. Step 1. Uncover front cover of the unit. Step 2. Find terminal block and connect wire as below For Split Indoor unit 5 Series For Hydrosplit 1-Pipe For Hydrosplit 2-Pipe...
Page 119 ACCESSORIES INSTALLATION Step3. Insert the temperature sensor to 'CN_MIX_OUT' (Brown) of the main PCB as shown below. The sensor should be mounted correctly to outlet pipe of mix kit water pump as shown below. CN_MIX_OUT [Circuit 2] Mixing Circuit circuit temp. sensor Indoor PCB Mix Kit Floor...
Page 120: 3Rd Party Backup Heater (For Hydrosplit)
ACCESSORIES INSTALLATION party Backup heater (For Hydrosplit) The product can be used by connecting an Auxiliary Backup heater. You can control the Backup heater automatically and manually by comparing the water out temperature of Backup heater and the set temperature. How to install 3 party Backup heater Follow below procedures Step 1 ~ 4.
Page 121 ACCESSORIES INSTALLATION [Thermistor for 3 party Backup heater] Sensor Sensor Holder Sensor Connector Middle link harness Follow below procedures Step 1 ~ 4. Step 1. Install sensor connector to outlet pipe of backup heater. (Welding must be performed to connect the sensor connector to the pipe.) Step 2.
Page 122: 3Rd Party Boiler
ACCESSORIES INSTALLATION 3rd Party Boiler The product can be used by connecting an Auxiliary boiler. 3rd party boiler can be controlled by manually via remote controller or automatically itself by means of comparing the outside air temperature and the pre-set temperature. How to wire 3rd party boiler Follow below procedures step 1 ~ step 3.
Page 124 Connect the meter interface module to terminal block completely.
Page 125: Central Controller
Log in to central controller and register device with address set. Consult a qualified engineer/ technician for the installation of central controller. If you have any installation queries, contact the LG service center or LG Electronics. How to Installation PI485 Fix the PI485 PCB as shown in below images.
Page 126: Dhw Tank
ACCESSORIES INSTALLATION DHW Tank To establish DHW circuit, 3way valve and DHW tank kit is required. If solar thermal system is pre-installed at the installation field, solar thermal kit is required to interface solar thermal system – to – DHW tank – to – Installation condition Installing DHW tank following considerations : - DHW tank should be located at the flat place.
Page 127 ACCESSORIES INSTALLATION Installing recirculation pump (For Split R32 4 Series, Split R410A 3 Series, For Hydrosplit 1-pipe) When is used with DHW tank, it is STRONGLY recommended to install recirculation pump to prevent flooding out cold water at the end of hot water supply and to stabilize the water temperature inside DHW tank - The recirculation pump should be operated when DHW demand is not required.
Page 129: Dhw Tank Kit
ACCESSORIES INSTALLATION How to Wire Booster Heater Step 1. Uncover heater cover of the DHW tank. It is located side of the tank. Step 2. Find terminal block and connect wires as below. Wires are field-supplied item. (L) : Live signal from PCB to Heater. (N) : Neutral signal from PCB to Heater.
Page 131 ACCESSORIES INSTALLATION For Split R410A Indoor unit 3 Series, For Split R32 Indoor unit 4 Series, For Hydrosplit 1-Pipe - 1Ø - 3Ø 1(L) 2(N) 5(L) 6(N) TO ELB FOR TO ELB FOR DHW TANK DHW TANK E/HEATER E/HEATER DHW TANK DHW TANK HEATER HEATER...
Page 132 ACCESSORIES INSTALLATION Check Polarity (For Split R410A Indoor unit 3 Series, For Split R32 Indoor unit 4 Series) Booster heater for 1Ø model With magnet switch With heater PCB (Production date : Until Sep. 30, 2019) (Production date : From Oct. 1, 2019) Booster heater for 3Ø...
Page 133 ACCESSORIES INSTALLATION Check Polarity (For Split Indoor unit 5 Series) Booster heater for 1Ø model Booster heater for 3Ø model...
Page 134: Solar Thermal Kit
This product can be used by connecting the solar thermal kit in the field. It can be utilized hot water heated by solar thermal system. End-user must be install solar thermal kit accessory(PHLLA) provided by LG. How to Install Solar Thermal Kit...
Page 135 ACCESSORIES INSTALLATION Solar Thermal Sensor (less than 12 m) 3way valve (Field Supply) Solar Water In Water Tank Sensor Tube Thermal connecter System (less than 12 m) Water Out (Field Supply) Solar Water In Pump Collector (Field Supply) (Field Supply) Water Out Water Tank h Water In / Water Out installation scene may vary depending on the model.
Page 136: Dry Contact
ACCESSORIES INSTALLATION Dry Contact Dry Contact is a solution for automatic control of HVAC system at the owner's best. In simple words, it's a switch which can be used to turn the unit On/Off after getting the signal from external sources. How to install dry contact [Parts of Dry contact] Dry Contact body...
Page 137 ACCESSORIES INSTALLATION [Setting of Contact Signal Input] • For input contact closure only(No power input) Thermostat LG does not supply this section (Field supply) Notes Do not input the voltage signal in "NON VOLT" setting mode otherwise it will cause serious damage •...
Page 138: External Controller - Setting Up Programmable Digital Input Operation
ACCESSORIES INSTALLATION External Controller - Setting up programmable digital input operation If you require to control depending on external digital input(ON/OFF), connect cable to indoor PCB(CN_EXT). Follow below procedures step 1 ~ step 4. Step 1. Check if the power of the unit is turned off. Step 2.
Page 139: Remote Temperature Sensor
ACCESSORIES INSTALLATION Remote Temperature Sensor Remote temperature sensor can be installed any place a user wants to detect the temperature. • The function is not available for some products. Installation condition Role and constraint while installation of remote air temperature sensor is very similar to that of thermostat.
Page 140 ACCESSORIES INSTALLATION How to Install Remote Temperature Sensor [Parts of Remote Temperature Sensor] Cable Screw(to fix remote sensor) Installation Manual Follow below procedures step 1 ~ step 6. Step 1. Decide where the remote temperature sensor is Installed. Then, Determine the location and height of the fixing screws in fig.
Page 141 ACCESSORIES INSTALLATION Step 6. Integrate the remote temperature sensor with the screws as the Fixing the Remote Sensor order of arrows. CAUTION • Choose the place where the average temperature can be measured for the unit operates. • Avoid direct sunlight. •...
Page 142 Connect the meter interface module to terminal block completely.
Page 143: External Pump
ACCESSORIES INSTALLATION External pump External pump can be required when the room to take floor heating is too large or not well- insulated.(potential free) Also, External pump is installed with buffer tank to retain sufficient capacity. How to wire external pump Follow below procedures step 1 ~ step 3.
Page 144: Wi-Fi Modem
ACCESSORIES INSTALLATION Wi-ﬁ Modem Wi-fi modem enables remote system operation from smartphone. Available functions include selection of on/off, operation mode, DHW heating, temperature setup and weekly scheduling etc. For detailed instructions, refer to the manual included in the accessories. How to wire Wi-ﬁ Modem [Parts of Wi-fi modem] Wi-fi modem body USB Cable...
Page 145: Smart Grid (For Split R32 Indoor Unit 4 Series, For Split R410A Indoor Unit 3 Series)
ACCESSORIES INSTALLATION Smart Grid (For Split R32 Indoor unit 4 Series, For Split R410A Indoor unit 3 Series) This product provides SG function for users. It enables to stop internal operation(Heating / DHW) and control target temperature depending on input signal from power provider. How to wire smart grid Follow below procedures step 1 ~ step 3.
Page 146: Energy State (For Split Indoor Unit 5 Series, For Hydrosplit)
ACCESSORIES INSTALLATION Energy State (For Split Indoor unit 5 Series, For Hydrosplit) This product provides energy states that enable customers to use as much as possible of their own renewable energy. It can shift setpoints depending on input signal from Energy Storage System (ESS) or from any other third-party device using Modbus RTU or Digital 230V inputs.
Page 147: Digital Input For Energy Saving (Ess, Smart Grid)(For Split Indoor Unit 5 Series, For Hydrosplit)
ACCESSORIES INSTALLATION Digital Input for energy saving (ESS, Smart Grid) (For Split Indoor unit 5 Series, For Hydrosplit) This product provides two digital inputs (ES1 / ES2) that can be used to switch between energy states when not using Modbus RTU (CN-COM). Available Energy States There are 8 energy states available in total.
Page 148: 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 149: 3Way Valve(A)
ACCESSORIES INSTALLATION 3Way Valve(A) 3Way Valve(A) is required to operate DHW water tank. Role of 3way valve is flow switching between under floor heating loop and water tank heating loop. Plus, it is required to operate 3 party boiler. General Information supports following 3way valve.
Page 150: 3Way Valve(B)
ACCESSORIES INSTALLATION 3Way Valve(B) 3way valve(B) is required to operate Solar thermal system. Role of 3way valve is flow switching between open and close mode of the solar circuit. General Information supports following 3way valve. Type Power Operating Mode Supported Selecting Flow A between Flow A and Flow B...
Page 151: Final Check
ACCESSORIES INSTALLATION Final check Check point Description - Check if the shut-off valves should be assembled with Connection of Water Water inlet and outlet pipe of the unit Inlet/Outlet - Check the location of the water inlet/outlet water pipe - Check the pressure of supplying water by using pressure gauge inside the unit Hydraulic pressure - Pressure of Supplying water should be Under 3.0 bar...
Page 152: [Chapter 9] Configuration
CONFIGURATION CONFIGURATION is designed to satisfy various installation environment, it is important to set up system correctly. If not configured correctly, improper operation or degrade of performance can be expected. DIP Switch Setting (For Split R32 Indoor unit 4 Series, For Split R410A Indoor unit 3 Series) CAUTION Turn off electric power supply before setting DIP switch...
Page 153 CONFIGURATION DIP Switch Information Option Switch 2 (Production date : Until Aug.31, 2018) Description Description Setting Setting Default Default Heat pump is installed (Heating(Cooling) circuit only) Heat pump + DHW tank Accessory installation is installed information Heat pump + DHW tank + Solar thermal system is installed Heating Only...
Page 154 CONFIGURATION Option Switch 2 (Production date : From Sep.1, 2018) Description Description Setting Setting Default Default Heat pump is installed (Heating(Cooling) circuit only) Heat pump Accessory installation + DHW tank information is installed Heat pump + DHW tank + Solar thermal system is installed Flow Switch Always...
Page 155 CONFIGURATION Option Switch 1 Description Setting Default As Master (LG extensions modules) MODBUS As Slave (3rd party controller) MODBUS Common 3 party Communication Type Option Switch 3 Description Setting Default Remote sensor is not installed Remote Room Air Sensor (Accessory)
Page 156 CONFIGURATION Outdoor PCB U36A Chassis (For R32) (5, 7, 9 kW) OFF is selected ON is selected U36A Chassis (For R410A) (5, 7, 9 kW) OFF is selected ON is selected U60A Chassis (For R410A Outdoor Unit Split 3, For R410A Outdoor Unit Split 4) (12, 14, 16 kW) OFF is selected ON is selected...
Page 157 CONFIGURATION DIP Switch Infaormation Description Description Setting Setting Default Default Always Mode - Maintain low noise mode for target temperature Low Noise Mode ON/OFF Partial mode - Escape low noise mode for target temperature Max Mode Peak Control Step 1 - To limit maximum current Peak Control (Power saving)
Page 158: Dip Switch Setting (For Split Indoor Unit 5 Series, For Hydrosplit)
CONFIGURATION DIP Switch Setting (For Split Indoor unit 5 Series, For Hydrosplit) CAUTION Turn off electric power supply before setting DIP switch • Whenever adjusting DIP switch, turn off electric power supply to avoid electric shock. Indoor PCB (For Split Indoor unit 5 Series) (For Hydrosplit) OFF is selected ON is selected...
Page 159 CONFIGURATION DIP Switch Infaormation Option Switch 2 Description Description Setting Setting Default Default Heat pump is installed (Heating(Cooling) circuit only) Heat pump + DHW tank Accessory installation is installed information Heat pump + DHW tank + Solar thermal system is installed Heating Only Cycle Heating &...
Page 160 CONFIGURATION Option Switch 1 Description Description Setting Setting Default Default As Master (LG extension modules) MODBUS Communication Type As Slave (3rd party controller) MODBUS Function Unified Open Protocol Antifreeze agent is not used Antifreeze Agent Antifreeze agent is used * * Possibility to allow colder water temperature by setting.
Page 161 CONFIGURATION DIP Switch Infaormation Option Switch 1 Description Setting Default Description Description Setting Setting Default Default Always Mode - Maintain low noise mode for target temperature Low Noise Mode ON/OFF Partial mode - Escape low noise mode for target temperature Option Switch 2 Description Description...
Page 162 CONFIGURATION NOTE Emergency Operation • Definition of terms - Trouble : a problem which can stop system operation, and can be resumed temporally under limited operation without certificated professional's assist. - Error : problem which can stop system operation, and can be resumed ONLY after certificated professional's check.
Page 163 CONFIGURATION NOTE • Duplicated trouble : Option trouble with slight or heavy trouble - If option trouble is occurred with slight (or heavy) trouble at the same time, the system puts higher priority to slight (or heavy) trouble and operates as if slight (or heavy) trouble is occurred.
Page 164: Service Setting
SERVICE SETTING SERVICE SETTING How to enter service setting To enter the menu displayed at the bottom, you need to enter the service setting menu as follows. • In the menu screen, press [<,>(left/right)] button to select the setting category, and press [OK] button to move to the setting list.
Page 165: Service Setting
SERVICE SETTING Service contact Check and input the service center phone number that you can call when there is service issue. • In the service setting list, select the service contact point and press [OK] button to move to the detail screen.
Page 166: Model Information
SERVICE SETTING Model information Check product and capacity information to which the remote controller is connected. • In the service setting list, select model information category, and press [OK] button to move to the detail screen. • The Model information - Depending on the model you own, the model name and serial number may not be displayed.
Page 167: Rmc Version Information
SERVICE SETTING RMC version Information View the remote controller software version. • In the service setting list, select the RMC version information and press [OK] button to move to the detail screen...
Page 168: Open Source License
SERVICE SETTING Open source license View the remote controller’s open source license. • In the service setting list, select the open source license category, and press [OK] button to move to the detail screen.
Page 169: Installer Setting
It must be set by the installation specialist with the installation license, and if it is installed or changed without installation license, all problems caused will be the responsibility of the installer, and may void the LG warranty. • In the menu screen, press [<,>(left/right)] button to select the setting category, and press [∧(up)] button for 3 seconds to enter the password input screen for the installer setting.
Page 170: Installer Setting (For Split R32 Indoor Unit 4 Series, For Split R410A Indoor Unit 3 Series)
INSTALLER SETTING Installer setting (For Split R32 Indoor unit 4 Series, For Split R410A Indoor unit 3 Series) • You can set the product user functions. • Some functions may not be displayed/operated in some product types. Function Description 3 Minutes Delay Factory use only Selection for setting temperature as air temperature or leaving Select Temperature Sensor...
Page 171 INSTALLER SETTING Function Description TH on/off Variable, cooling Cooling air temperature TH On / Off Type setting TH on/off Variable, cooling Cooling Water Outlet Temperature TH On / Off Type Water At the water control in heating mode, the control reference water Heating temp.
Page 172 INSTALLER SETTING 3 Minutes Delay Temporarily eliminates the 3-minute delay function of the outdoor unit Comp - Factory use only • In the installer setting list, select 3 Minutes Delay category, and press [OK] button to move to the detail screen.
Page 173: Select Temperature Sensor
INSTALLER SETTING Select Temperature Sensor The product can be operated according to air temperature or water temperature. The selection for setting temperature as air temperature or water temperature is determined. • In the installer setting list, Select Temperature Sensor category, and press [OK] button to move to the detail screen.
Page 174: Dry Contact Mode
INSTALLER SETTING Dry Contact Mode Dry contact function is the function that can be used only when the dry contact devices is separately purchased and installed. • Change setting values using [<,>(left/right)] button. Value Description Auto (Default) Automatically operation ON with release hard lock Manual Keep operation OFF with hard lock NOTE...
Page 175: Central Control Address
INSTALLER SETTING Central Control Address When connecting the central control, set the central control address of the unit. • In the installer setting list, select Central Control Address category, and press [OK] button to move to the detail screen. NOTE Enter address code as hexadecimal value Front: Central Control Gr.
Page 176: Pump Test Run
INSTALLER SETTING Pump test run The pump test run is to test run by operating the water pump for 1 hour. This function can be used for air purging through air vents and checking flow rate and others. • In the installer setting list, Pump Test run category, and press [OK] button to move to the detail screen.
Page 177: Air Cooling Set Temp
INSTALLER SETTING Air cooling set temp. Determine cooling setting temperature range when air temperature is selected as setting temperature. • In the installer setting list, select Air cooling set temp category, and press [OK] button to move to the detail screen. Value Default Range...
Page 178: Water Cooling Set Temp
INSTALLER SETTING Water cooling set temp. Determine cooling setting temperature range when leaving water temperature is selected as setting temperature. • In the installer setting list, select water cooling set temp category, and press [OK] button to move to the detail screen. Value Default Range...
Page 179: Air Heating Set Temp
INSTALLER SETTING Air heating set temp. Determine heating setting temperature range when air temperature is selected as setting temperature • In the installer setting list, select Air heating set temp. category, and press [OK] button to move to the detail screen. Value Default Range...
Page 180: Water Heating Set Temp
INSTALLER SETTING Water heating set temp. Determine heating setting temperature range when water temperature is selected as setting temperature. • In the installer setting list, select Water heating set temp. category, and press [OK] button to move to the detail screen. Default Range Value...
Page 181: Dhw Set Temp
INSTALLER SETTING DHW set temp. Determine heating setting temperature range when DHW temperature is selected as setting temperature • In the installer setting list, select DHW set temp. category, and press [OK] button to move to the detail screen. Value Default Range Min.
Page 182: Screed Drying
INSTALLER SETTING Screed drying This function is a unique feature of AWHP that, when AWHP is installed in a new concrete structure, controls the specific temperature floor heating out temperature for a certain period of time to cure the floor cement. •...
Page 183 INSTALLER SETTING NOTE • During Screed drying operation, button input except for installer function and temperature display is restricted. • When the power is applied again after a power outage during product operation, the product operation state before power failure is remembered and the product is automatically operated.
Page 184: Heater On Temperature
INSTALLER SETTING Heater on temperature Depending on local climatic conditions, it is necessary to change the temperature condition in which backup heater turns on / off. • In the installer setting list, Heater on temperature category, and press [OK] button to move to the detail screen.
Page 185 INSTALLER SETTING NOTE • Heater on temperature Using Half capacity of backup heater : when DIP Switch No. 6 and 7 is set as ‘ON-OFF’ : - Example : If Heater on temperature is set as ‘-1’ and DIP switch No 6. and 7 is set as ‘ON-OFF’, then half capacity of backup heater will start operation when outdoor air temperature is below -1 °C and current leaving water temperature or room air temperature is much belower than target leaving water temperature or target room air...
Page 186: Water Supply Off Temp. During Cooling
INSTALLER SETTING Water supply off temp. during cooling Determine leaving water temperature when the unit is turned off. This function is used for preventing condensation on the floor in cooling mode • In the installer setting list, select Water supply off temp. during cooling category, and press [OK] button to move to the detail screen.
Page 187 INSTALLER SETTING - Stop temp. : cut-off temp. Stop temp. is valid when FCU is set as ‘Use’. - FCU : determines if FCU is installed or not. - Example : If FCU is set as ’Use’, Stop temp. setting is disabled. However, if actually FCU is NOT installed in the water loop, the unit operates continuously in cooling mode until water temperature meets desired temperature.
Page 188: Tank Disinfection Setting
INSTALLER SETTING Tank disinfection setting 1, 2 • Disinfection operation is special DHW tank operation mode to kill and to prevent growth of legionella inside the tank. - Disinfection active : Selecting enable or disable of disinfection operation. - Start date : Determining the date when the disinfection mode is running. - Start time : Determining the time when the disinfection mode is running.
Page 189: Tank Setting 1
INSTALLER SETTING Tank setting 1 • In the installer setting list, select tank setting 1 category, and press [OK] button to move to the detail screen. Value Default Range Min. temp. 5 °C 1 ~ 30 °C Comp. Limit Temp. 55 °C 40 ~ 58 °C NOTE...
Page 190: Tank Setting 2
INSTALLER SETTING Tank setting 2 • In the installer setting list, select tank setting 2 category, and press [OK] button to move to the detail screen. Value Default Range Hysteresis 3 °C 2 ~ 4 °C Heating priority Floor heating / DHW...
Page 191 INSTALLER SETTING • Tank setting 1, 2 Descriptions for each parameters are as following. - Min temp. : temperature gap from Max outdoor temp. - Max outdoor temp. : maximum temperature generated by AWHP compressor cycle. - Example : If Min temp. is set as ‘5’ and Max outdoor temp. is set as ’48’, then Session A (see the graph) will be started when the water tank temperature is below 43 °C….
Page 192: Heater Priority
INSTALLER SETTING Heater priority • Heater priority: It is decided whether to use the boost heater for DHW operation and the backup heater for floor heating at the same time by condition. • Example: If the heater priority is set to 'Main+Boost heater ON', the backup heater and boost heater are turned on/off according to the control logic.
Page 193: Dhw Time Setting
INSTALLER SETTING DHW time setting Determine following time duration : operation time of DHW tank heating, stop time of DHW tank heating, and delay time of 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.
Page 194 INSTALLER SETTING Value Default Range Active time 30 min 5~95 min Stop time 30 min 0~600 min Boost heater delay time 20 min 20~95 min...
Page 195: Th On/Off Variable, Heating Air
INSTALLER SETTING TH on/off Variable, heating air It is a function to adjust the heating air temperature Thermal On / Off temperature according to the field environment in order to offer optimized heating operation. • You can set the following setting values using [<,>(left/right)] button. Description Value TH On...
Page 196: Th On/Off Variable, Heating Water
INSTALLER SETTING TH on/off Variable, heating water It is a function to adjust the heating water temperature Thermal On / Off temperature according to the field environment in order to offer optimized heating operation. • You can set the following setting values using [<,>(left/right)] button. Description Value TH On...
Page 197: Th On/Off Variable, Cooling Air
INSTALLER SETTING TH on/off Variable, cooling air It is a function to adjust the cooling air temperature Thermal On / Off temperature according to the field environment in order to offer optimized cooling operation. • You can set the following setting values using [<,>(left/right)] button. Description Value TH On...
Page 198: Th On/Off Variable, Cooling Water
INSTALLER SETTING TH on/off Variable, cooling water It is a function to adjust the cooling water temperature Thermal On / Off temperature according to the field environment in order to offer optimized cooling operation. • You can set the following setting values using [<,>(left/right)] button. Description Value TH On...
Page 199: Heating Temp. Setting
INSTALLER SETTING Heating temp. setting • At the water control in heating mode, the control reference water temperature position setting - If the air / leaving water temperature selection setting is set to leaving water temperature • Change setting values using [<,>(left/right)] button •...
Page 200: Cooling Temp. Setting
INSTALLER SETTING Cooling temp. setting • At the water control in cooling mode, the control reference water temperature position setting - If the air / leaving water temperature selection setting is set to leaving water temperature • Change setting values using [<,>(left/right)] button. •...
Page 201: Pump Setting In Heating
INSTALLER SETTING Pump setting in heating • It is a function to help the water pump's mechanical life by putting the water pump's rest time • Installer setting function to set water pump on/off interval option during thermo off condition in heating mode.
Page 202: Pump Setting In Cooling
INSTALLER SETTING Pump setting in cooling • It is a function to help the water pump's mechanical life by putting the water pump's rest time • Installer setting function to set water pump on/off interval option during thermo off condition in cooling mode.
Page 203: Forced Operation
INSTALLER SETTING Forced operation • If the product is not used for a long time, the pump will be forced to operate to prevent pump failure and PHEX freezing • Water pump off After 20 consecutive hours, disable / enable the logic that drives the water pump by itself •...
Page 204: Cn_Cc
INSTALLER SETTING CN_CC It is the function to set the usage of the unit’s CN_CC port. • Change setting values using [<,>(left/right)] button Value Description D/C Automatic When power is applied to the product, the unit when the contact point is on in Dry Contact installed state recognizes Dry Contact installation (Default) D/C Not Installed...
Page 205 INSTALLER SETTING Pump frequency setting (RPM) (For Split R410A Indoor unit 3 Series) It is a function to enable installer to control pump RPM of BLDC pump application model. • In the installer setting list, select Pump frequency setting(RPM) category, and press [OK] button to move to the detail screen.
Page 206: Pump Capacity (For Split R32 Indoor Unit 4 Series)
INSTALLER SETTING Pump Capacity (For Split R32 Indoor unit 4 Series) It is a function to enable installer to control Pump capacity application model. • In the installer setting list, select Pump Capacity category, and press [OK] button to move to the detail screen.
Page 207: Smart Grid (Sg)
INSTALLER SETTING Smart Grid (SG) It is the function to enable / disable the SG Ready function and to set the reference value at SG2 step. • In the installer setting list, select Smart Grid(SG) category, and press [OK] button to move to the detail screen.
Page 208: Power Supply Blockage (Smart Grid)
INSTALLER SETTING Power Supply Blockage (Smart Grid) The heat pump operated automatically by the power supply status signals from power supply companies. This function can respond to European countries’ special tariff for heat pump using on a smart grid. Power Supply Status Operating Mode 0:0 [Normal Operation] The heat pump works at maximum...
Page 209: Seasonal Auto Temp
INSTALLER SETTING Seasonal auto temp. It is the function to set the operation reference value in Seasonal Auto mode. • In the installer setting list, select Seasonal auto temp category, and press [OK] button to move to the detail screen. Range Function Description...
Page 210 INSTALLER SETTING - Setting range: Celsius - Seasonal Auto Driving mode: Heating, Heating & Cooling, Air-conditioning * If heating mode is selected, heating & cooling or cooling can not be selected. - Depending on the air / outflow control selection value, the water / air related setting value is displayed on the screen.
Page 211: Modbus Address
INSTALLER SETTING Modbus Address It is function to set the address of the Modbus device that is externally linked to the product. Modbus address setting function is available from indoor unit. • In the installer setting list, select Modbus Address , and press [OK] button to move to the detail screen.
Page 212: Cn_Ext
INSTALLER SETTING CN_EXT It is a function to control external input and output according to DI type set by customer using CN-EXT Port. • In the installer setting list, select CN-EXT Port category, and press [OK] button to move to the detail screen.
Page 213: Anti-Freezing Temperature
INSTALLER SETTING Anti-freezing Temperature This function is to apply an offset to the freezing temperature of the freeze protection logic when using antifreeze mode. Make sure to use this function only when antifreeze is added. • Change setting values using [<, >(left/right)] button. •...
Page 214: Add Zone
INSTALLER SETTING Add Zone Function to set whether or not to use a installed 2nd circuit function using mixing kit. You can set valve closing time[s] and hysteresis temperature[°C] on screen by yourself. Value Default Range Valve Closing Time 240 s 60 ~ 999 s Hysteresis 2 °C...
Page 215: Use External Pump
INSTALLER SETTING Use External Pump This function can be set to control the external water pump. • In the installer setting list, select Use External Pump category, and press [OK] button to move to the detail screen. Value Not use...
Page 216: 3Rd Party Boiler
INSTALLER SETTING Party Boiler This function is to configure the 3rd party boiler to be controlled. If the status of this function is “Use”, you can choose control mode of boiler, Auto or Manual. If the mode of this function is set to “Auto”, you can set temperature of the boiler and hysteresis, respectively.
Page 217: Meter Interface
INSTALLER SETTING Meter Interface It is the function that can check the status of energy and power on screen. It collects and calculates power or calorie data to create data for energy monitoring and energy warning alarm pop-ups. This function can be activated in installer mode. There are 2 options, modbus address and unit, in this function.
Page 218: Pump Prerun/Overrun
INSTALLER SETTING Pump Prerun/Overrun Pump Prerun operates to ensure sufficient flow before the compressor is operated. This is a function that allows heat exchange to work smoothly. Pump Overrun removes latent heat from the PHEX by circulating the water flow when the comp is stopped Value Default...
Page 219: Solar Thermal System
INSTALLER SETTING Solar Thermal System It is function to set operation reference value in Solar Thermal System. In the installer setting list, select Solar thermal system category, and press [OK] button to move to the detail screen. NOTE To use this function, switch No.2 of option switch 2 must be turned ON and No.3 of option switch 2 must be turned OFF.
Page 220 INSTALLER SETTING Descriptions for each parameters are as following. • Solar collector set temp - Min temp : It is the minimum solar collector temperature at which the solar thermal system can operate. - Max temp : It is the maximum solar collector temperature at which the solar thermal system can operate.
Page 221: Current Flow Rate (For Split R32 Indoor Unit 4 Series)
INSTALLER SETTING Current ﬂow rate (For Split R32 Indoor unit 4 Series) It is the function to check the current flow rate. • In the installer setting list, select Current Flow Rate category, and press [OK] button to move to the detail screen.
Page 222: Data Logging
INSTALLER SETTING Data logging This function is to check the operation and error history. • In the installer setting list, select Data logging category, and press [OK] button to move to the detail screen. NOTE Error history lookup range: 50 Error history information Item: date, time, mode (including Off), set temperature, incoming temperature, outgoing temperature, room temperature, Hot water operation / stop, Hot water set...
Page 223: Password Initialization
INSTALLER SETTING Password Initialization It is the function to initialize (0000) when you forgot the password set in the remote controller. • In the installer setting list, select the password initialization setting category, and press [OK] button to move to the detail screen. •...
Page 224: Installer Setting (For Split Indoor Unit 5 Series, For Hydrosplit)
Function to use 2 remote control environment Function to save the environment settings of the LG Therma V Configuration product for use in LG Therma V Configurator through SD Card. Water pump off After 20 consecutive hours, disable / Forced operation...
Page 225 INSTALLER SETTING Segmentation Functions Description At the water control in cooling mode, the control Cooling temp. setting reference water temperature position setting Adjusting range of 'Setting Air Temperature' in Air cooling set temp. cooling mode Adjusting range of 'Setting Leaving Water Water cooling set temp.
Page 226 INSTALLER SETTING Segmentation Functions Description Dry contact function is the function that can be Dry Contact Mode used only when the dry contact devices is separately purchased and installed. When connecting the central control, set the Central Control Address central control address of the unit. It is the function to set whether to install (use) Dry Contact.
Page 227: Select Temperature Sensor
INSTALLER SETTING Select Temperature Sensor The product can be operated according to air temperature or water temperature. The selection for setting temperature as air temperature or water temperature is determined. • In the installer setting list, Select Temperature Sensor category, and press [OK] button to move to the detail screen.
Page 228: Use Heating Tank Heater
INSTALLER SETTING Use Heating Tank Heater This is a function to change the set value for the operation of the hot water tank heater, such as heating tank heater use /not use and heater delay time. • In the installer setting list, Select Configuration category, and press [OK] button to move to the detail screen.
Page 229: Mixing Circuit
INSTALLER SETTING Mixing Circuit Function to set whether or not to use a installed mixing circuit function using mixing kit. Value Default Not Use / Heat / Cool Not Use You can set valve closing time[s] and hysteresis temperature[°C] on screen by yourself. Setting the cut-off temperature protects the water from flowing over the cut-off temperature in the mixing circuit during heating operation.
Page 230 INSTALLER SETTING Installer setting function to set water mixing pump operation / delay time option in heating/cooling mode Value Default Range Time Setting / Type Time Setting Continuous Operation 3 min 1 ~ 60 min 3 min 1 ~ 60 min * When Continuous Operation is selected, On, Off is disabled.
Page 231: Use External Pump
INSTALLER SETTING Use External Pump This function can be set to control the external water pump. • In the installer setting list, select Use External Pump category, and press [OK] button to move to the detail screen. • Heating/Cooling You can use this feature when you have installed a 3 Way valve to switch the water flow between the underfloor and the water tank.
Page 232: Rmc Master/Slave
INSTALLER SETTING RMC master/slave This function can be select Master/Slave on remote controller to use 2 Remote Control environment • In the Installer setting list, and select RMC master/slave setting category, and press [<,>(left/right)] button to following setting values. Value Master (Default) Slave...
Page 233: Lg Therma V Configuration
INSTALLER SETTING LG Therma V Conﬁguration This function can be set to save the environment settings of the product for use in LG Therma V Configurator through SD Card. • In the Installer setting list, and select LG Therma V Configuration setting category, and press [OK] button to move to the detail screen.
Page 234: Forced Operation
INSTALLER SETTING Forced operation • If the product is not used for a long time, the pump will be forced to operate to prevent pump failure and PHEX freezing • Water pump off After 20 consecutive hours, disable / enable the logic that drives the water pump by itself •...
Page 235: Pump Prerun/Overrun
INSTALLER SETTING Pump Prerun/Overrun Pump Prerun operates to ensure sufficient flow before the compressor is operated. This is a function that allows heat exchange to work smoothly. Pump Overrun removes latent heat from the PHEX by circulating the water flow when the comp is stopped Value Default...
Page 236: Water Flow Control
INSTALLER SETTING Water Flow Control This function controls the water flow by controlling the water pump. Select the way to control the water pump and set the target value • In the installer setting list, select Configuration category, and press [OK] button to move to the detail screen.
Page 237: Energy Monitoring (For Split Indoor Unit 5 Series, For Hydrosplit 2-Pipe)
This function can be set to use energy monitoring function of unit. • Change setting values using [<,>(left/right)] button. Value Default Range Energy Monitoring Use/Not Use LG 1Ø / LG 3Ø / Type LG 1Ø EXTERNAL Electric Heater Setting Heater Capacity 6 kW...
Page 238: Anti-Freezing Option 1 (For Split R32 Indoor Unit 5 Series, For Split R410A Unit 4 Series, For Hydrosplit 1-Pipe, For Hydrosplit 2-Pipe)
INSTALLER SETTING Anti-Freezing Option 1 (For Split R32 Indoor unit 5 Series, For Split R410A unit 4 Series, For Hydrosplit 1-Pipe, For Hydrosplit 2-pipe) This function is to select whether to use Type1 or Type2 to prevent freezing when the remote control is turned off.
Page 239: Password Reset
INSTALLER SETTING Password Reset It is the function to initialize (0000) when you forgot the password set in the remote controller. • In the installer setting list, select the password Reset setting category, and press [OK] button to move to the detail screen. •...
Page 240: Screed Drying
INSTALLER SETTING Screed drying This function is a unique feature of AWHP that, when AWHP is installed in a new concrete structure, controls the specific temperature floor heating out temperature for a certain period of time to cure the floor cement. •...
Page 241 INSTALLER SETTING NOTE • During Screed drying operation, button input except for installer function and temperature display is restricted. • When the power is applied again after a power outage during product operation, the product operation state before power failure is remembered and the product is automatically operated.
Page 242: Heater On Temperature
INSTALLER SETTING Heater on temperature Depending on local climatic conditions, it is necessary to change the temperature condition in which backup heater turns on / off. • In the installer setting list, Heater on temperature category, and press [OK] button to move to the detail screen.
Page 243 INSTALLER SETTING NOTE • Heater on temperature Using Half capacity of backup heater (For Split Indoor unit 5 Series) : when DIP Switch No. 6 and 7 is set as ‘ON-OFF’ : - Example : If Heater on temperature is set as ‘-1’ and DIP switch No 6. and 7 is set as ‘ON-OFF’, then half capacity of electric heater will start operation when outdoor air temperature is below -1 °C and current leaving water temperature or room air temperature is much belower than target leaving water temperature or target room air...
Page 244: Air Heating Set Temp
INSTALLER SETTING Air heating set temp. Determine heating setting temperature range when air temperature is selected as setting temperature • In the installer setting list, select Air heating set temp. category, and press [OK] button to move to the detail screen. Value Default Range...
Page 245: Water Heating Set Temp
INSTALLER SETTING Water heating set temp. Determine heating setting temperature range when water temperature is selected as setting temperature. • In the installer setting list, select Water heating set temp. category, and press [OK] button to move to the detail screen. Value Default Range...
Page 246: Hysteresis Room Air(Heating)
INSTALLER SETTING Hysteresis Room Air(Heating) It is a function to adjust the heating air temperature Thermal On / Off temperature according to the field environment in order to offer optimized heating operation. • In the Installer setting list, and select Hysteresis Room Air(Heating) category, and press [OK] button to move to the detail screen.
Page 247: Hysteresis Heating Water
INSTALLER SETTING Hysteresis Heating Water It is a function to adjust the heating water temperature Thermal On / Off temperature according to the field environment in order to offer optimized DHW heating operation. • In the Installer setting list, and select Hysteresis Heating Water category, and press [OK] button to move to the detail screen.
Page 248: Heating Temp. Setting
INSTALLER SETTING Heating temp. setting • At the water control in heating mode, the control reference water temperature position setting - If the air / leaving water temperature selection setting is set to leaving water temperature • Change setting values using [<,>(left/right)] button •...
Page 249: Pump Setting In Heating
INSTALLER SETTING Pump setting in heating • It is a function to help the water pump's mechanical life by putting the water pump's rest time • Installer setting function to set water pump on/off interval option during thermo off condition in heating mode.
Page 250: Air Cooling Set Temp
INSTALLER SETTING Air cooling set temp. Determine cooling setting temperature range when air temperature is selected as setting temperature. • In the installer setting list, select Air cooling set temp category, and press [OK] button to move to the detail screen. Value Default Range...
Page 251: Water Cooling Set Temp
INSTALLER SETTING Water cooling set temp. Determine cooling setting temperature range when water temperature is selected as setting temperature. • In the installer setting list, select water cooling set temp category, and press [OK] button to move to the detail screen. Value Default Range...
Page 252: Water Supply Off Temp. During Cooling
INSTALLER SETTING Water supply off temp. during cooling Determine the leaving water temperature which blocks the flow into underfloor coil in cooling mode. This function is used for preventing condensation on the floor in cooling mode • In the installer setting list, select Water supply off temp. during cooling category, and press [OK] button to move to the detail screen.
Page 253 INSTALLER SETTING - Stop temp. : cut-off temp. Stop temp. is valid when FCU is set as ‘Use’. - FCU : determines if FCU is installed or not. - Example : If FCU is set as ’Use’, Stop temp. setting is disabled. However, if actually FCU is NOT installed in the water loop, the unit operates continuously in cooling mode until water temperature meets desired temperature.
Page 254: Hysteresis Room Air(Cooling)
INSTALLER SETTING Hysteresis Room Air(Cooling) It is a function to adjust the cooling air temperature Thermal On / Off temperature according to the field environment in order to offer optimized cooling operation. • In the Installer setting list, and select Hysteresis Room Air(Cooling) setting category, and press [OK] button to move to the detail screen.
Page 255: Hysteresis Cooling Water
INSTALLER SETTING Hysteresis Cooling Water It is a function to adjust the cooling water temperature Thermal On / Off temperature according to the field environment in order to offer optimized cooling operation. • In the Installer setting list, and select Hysteresis Cooling Water setting category, and press [OK] button to move to the detail screen.
Page 256: Cooling Temp. Setting
INSTALLER SETTING Cooling temp. setting • At the water control in cooling mode, the control reference water temperature position setting - If the air / leaving water temperature selection setting is set to leaving water temperature • Change setting values using [<,>(left/right)] button. •...
Page 257: Pump Setting In Cooling
INSTALLER SETTING Pump setting in cooling • It is a function to help the water pump's mechanical life by putting the water pump's rest time • Installer setting function to set water pump on/off interval option during thermo off condition in cooling mode.
Page 258: Seasonal Auto Temp
INSTALLER SETTING Seasonal auto temp. It is the function to set the operation reference value in Seasonal Auto mode. • In the installer setting list, select Seasonal auto temp category, and press [OK] button to move to the detail screen.
Page 259 INSTALLER SETTING Default Default Function Description Range Boundary (Circuit1) (Circuit2) Outdoor1,Heat Heating lower ambient Out1 ≤ Out2-1 -10 °C (Out1) temp -25 ~ 35 °C Out2 ≥ Out1 +1 Outdoor2,Heat Heating higher ambient 18 °C Out2 ≤ Out3 -5 (Out2) temp Out3 ≥...
Page 260 INSTALLER SETTING - Setting range: Celsius - Seasonal Auto Driving mode: Heating, Heating & Cooling * If heating mode is selected, heating & cooling or cooling can not be selected. - Depending on the air / outflow control selection value, the water / air related setting value is displayed on the screen.
Page 261: Heater Priority
INSTALLER SETTING Heater priority • Heater priority: It is decided whether to use the boost heater for DHW operation and the backup heater for floor heating at the same time by condition. • Example: If the heater priority is set to 'Main+Boost heater ON', the backup heater and boost heater are turned on/off according to the control logic.
Page 262: Dhw Set Temp
INSTALLER SETTING DHW set temp. Determine heating setting temperature range when DHW temperature is selected as setting temperature • In the installer setting list, select DHW set temp. category, and press [OK] button to move to the detail screen. Value Default Range Min.
Page 263: Tank Disinfection Setting
INSTALLER SETTING Tank disinfection setting 1, 2 • Disinfection operation is special DHW tank operation mode to kill and to prevent growth of legionella inside the tank. - Disinfection active : Selecting enable or disable of disinfection operation. - Start date : Determining the date when the disinfection mode is running. - Start time : Determining the time when the disinfection mode is running.
Page 264: Tank Setting 1
INSTALLER SETTING Tank setting 1 • In the installer setting list, select tank setting 1 category, and press [OK] button to move to the detail screen. Value Default Range Min. temp. 5 °C 1 ~ 30 °C Comp. Limit Temp. 55 °C 40 ~ 58 °C NOTE...
Page 265: Tank Setting 2
INSTALLER SETTING Tank setting 2 • In the installer setting list, select tank setting 2 category, and press [OK] button to move to the detail screen. Value Default Range Hysteresis 3 °C 2 ~ 4 °C Heating priority Floor heating / DHW...
Page 266 INSTALLER SETTING • Tank setting 1, 2 Descriptions for each parameters are as following. - Min temp. : temperature gap from Max outdoor temp. - Max outdoor temp. : maximum temperature generated by AWHP compressor cycle. - Example : If Min temp. is set as ‘5’ and Max outdoor temp. is set as ’48’, then Session A (see the graph) will be started when the water tank temperature is below 43 °C….
Page 267: Dhw Time Setting
INSTALLER SETTING DHW time setting Determine following time duration : operation time of DHW tank heating, stop time of DHW tank heating, and delay time of 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.
Page 268 INSTALLER SETTING Value Default Range Active time 30 min 5~95 min Stop time 30 min 0~600 min...
Page 269: Recirculation Time (For Split Indoor Unit 5 Series, For Hydrosplit 2-Pipe)
INSTALLER SETTING Recirculation time (For Split Indoor unit 5 Series, For Hydrosplit 2-Pipe) • It is function to set recirculation water pump on/off interval option • In the installer setting list, select Recirculation time category, and press [OK] button to move to the detail screen.
Page 270: Solar Thermal System
INSTALLER SETTING Solar Thermal System It is function to set operation reference value in Solar Thermal System. In the installer setting list, select Solar thermal system category, and press [OK] button to move to the detail screen. NOTE To use this function, switch No.2 of option switch 2 must be turned ON and No.3 of option switch 2 must be turned OFF.
Page 271 INSTALLER SETTING Descriptions for each parameters are as following. • Solar collector set temp - Min temp : It is the minimum solar collector temperature at which the solar thermal system can operate. - Max temp : It is the maximum solar collector temperature at which the solar thermal system can operate.
Page 272: Pump Test Run
INSTALLER SETTING Pump test run The pump test run is to test run by operating the water pump for 1 hour. This function can be used for air purging through air vents and checking flow rate and others. • In the installer setting list, Pump Test run category, and press [OK] button to move to the detail screen.
Page 273: Frost Protection Temp
INSTALLER SETTING Frost Protection Temp. This function prevents the unit from freezing. This function sets the freeze protection temperature according to the concentration injected after injecting antifreeze. Make sure to use this function only when antifreeze is added. • Change setting values using [<, >(left/right)] button. •...
Page 274: Dry Contact Mode
INSTALLER SETTING Dry Contact Mode Dry contact function is the function that can be used only when the dry contact devices is separately purchased and installed. • Change setting values using [<,>(left/right)] button. Value Description Auto (Default) Automatically operation ON with release hard lock Manual Keep operation OFF with hard lock NOTE...
Page 275: Central Control Address
INSTALLER SETTING Central Control Address When connecting the central control, set the central control address of the unit. • In the installer setting list, select Central Control Address category, and press [OK] button to move to the detail screen. NOTE Enter address code as hexadecimal value Front: Central Control Gr.
Page 276: Cn_Cc
INSTALLER SETTING CN_CC It is the function to set the usage of the unit’s CN_CC port. • Change setting values using [<,>(left/right)] button Value Description D/C Automatic When power is applied to the product, the unit when the contact point (Default) is on in Dry Contact installed state recognizes Dry Contact installation D/C Not Installed...
Page 277: Energy State
INSTALLER SETTING Energy state This function is to control the product according to the energy state. When the charged state of ESS is transmitted, it changes the target temperature of heating, cooling and DHW by setting value according to energy state. Select either Signal Mode or Modbus Mode according to the connection type between the product and the ESS.
Page 278 INSTALLER SETTING Division Value Default Range Division Value Default Range Use / Not Use Use / Not Use Heat Temp. fixed Heat Temp. +5 °C 0 ~ 30 °C ES 1 ES 5 Cool Temp. fixed Cool Temp. -5 °C -30 ~ 0 °C DHW Temp.
Page 279 INSTALLER SETTING When Signal Mode of EES use type is selected, press the Digital Input Assignment button to set the energy state according to the input signal. Input Signal Output state Value TB_SG1 TB_SG2 Default Range fixed fixed ES3-ES8...
Page 280: Thermostat Control Type
INSTALLER SETTING Thermostat control type Set the type of thermostat control. • In the Installer setting list, and select Connectivity category, and press [OK] button to move to the detail screen. Type Heat & Cool (Default) Heat & Cool / DHW...
Page 281: Pump Operation Time
INSTALLER SETTING Pump operation time It is a function to show the water pump’s operation time for check mechanical life. • In the Installer setting list, and select Information category, and press [OK] button to move to the detail screen.
Page 282: Idu Operation Time
INSTALLER SETTING IDU operation time It is a function to show the Indoor Unit’s operation time for check mechanical life. • In the Installer setting list, and select Information category, and press [OK] button to move to the detail screen.
Page 283: Modbus Address
INSTALLER SETTING Modbus Address It is function to set the address of the Modbus device that is externally linked to the product. Modbus address setting function is available from indoor unit. • In the installer setting list, select Modbus Address , and press [OK] button to move to the detail screen.
Page 284: Modbus Gateway Memory Map
INSTALLER SETTING Modbus gateway memory map Baud Rate : 9 600 bps Stop Bit : 1 stop bit Parity : None Parity Coil Register (0x01) Register Description Value explanation 00001 Enable/Disable (Heating/Cooling) 0 : Operation OFF / 1 : Operation ON 00002 Enable/Disable (DHW) 0 : Operation OFF / 1 : Operation ON...
Page 285 INSTALLER SETTING Holding Register (0x03) Register Description Value explanation 30001 Error Code Error Code 30002 ODU operation Cycle 0 : Standby(OFF) / 1 : Cooling / 2 : Heating 30003 Water inlet temp. [0.1 °C ×10] 30004 Water outlet temp. [0.1 °C ×10] 30005 Backup heater outlet temp.
Page 286 INSTALLER SETTING Input Register (0x04) Register Description Value explanation 40001 Operation Mode 0 : Cooling / 4 : Heating / 3 : Auto 0 : Water outlet temp. control 40002 Control method (Circuit 1/2) 1 : Water inlet temp. control 2 : Room air control Target temp (Heating/Cooling) 40003...
Page 287: Cn_Ext
INSTALLER SETTING CN_EXT It is a function to control external input and output according to DI type set by customer using CN-EXT Port. • In the installer setting list, select CN-EXT Port category, and press [OK] button to move to the detail screen.
Page 288 INSTALLER SETTING Party Boiler This function is to configure the 3rd party boiler to be controlled. If the status of this function is “Use”, you can choose control mode of boiler, Auto or Manual. If the mode of this function is set to “Auto”, you can set temperature of the boiler and hysteresis, respectively.
Page 289: Meter Interface
INSTALLER SETTING Meter Interface It is the function that can check the status of energy and power on screen. It collects and calculates power or calorie data to create data for energy monitoring and energy warning alarm pop-ups. This function can be activated in installer mode. There are 2 options, modbus address and unit, in this function.
Page 290: Current Flow Rate
INSTALLER SETTING Current ﬂow rate It is the function to check the current flow rate. • In the installer setting list, select Current Flow Rate category, and press [OK] button to move to the detail screen. The current flow rate can be checked. (Range : 7 ~ 80 L/min) •...
Page 291: Data Logging
INSTALLER SETTING Data logging This function is to check the operation and error history. • In the installer setting list, select Data logging category, and press [OK] button to move to the detail screen. NOTE Error history lookup range: 50 Error history information Item: date, time, mode (including Off), set temperature, incoming temperature, outgoing temperature, room temperature, Hot water operation / stop, Hot water set...
Page 292: [Chapter 10] Commissioning
• Refrigerant leakage degrades the performance. If leakage found, contact Installation Refrigerant leakage qualified LG air conditioning installation person. • While cooling operation, condensed dew can drop down to the bottom of the Drainage treatment unit. In this case, prepare drainage treatment (for example, vessel to contain...
Page 293: Starting Operation
COMMISSIONING To assure best performance of , it is required to perform periodical check and maintenance. It is recommended to proceed following check list for once a year. CAUTION Turn off the power before proceeding maintenance. Category Item Check Point •...
Page 294: Starting Operation Flow Chart
COMMISSIONING Starting Operation ﬂow chart START Check whether the power cable and Operate the unit in heating mode. communication cable are completely connected Does Test operation start? Is hot water discharged for * Check the load (In/Out Temp.) more than 3 minutes ? * Check pipe length and amount of refrigerant Is there any temperature...
Page 295: Vacuum & Charge Of Refrigerant
COMMISSIONING Vacuum & Charge of Refrigerant By default, the product was charged of refrigerant. Vacuum and refrigerant charge, If there is leak refrigerant. 1. Vacuum To work of vacuum action. when the leak of refrigerant. Manifold valve (For Split) Pressure gauge Open Close...
Page 296 COMMISSIONING 2. Charge of refrigerant You should be charged after vacuum. You can see amount of refrigerant at quality label. Please to charge at cooling mode when there is not full charging. (For Split) Refrigerant cylinder SVC Port Manifold gauge (For Hydrosplit) SVC Port Manifold gauge...
Page 297 COMMISSIONING - For R410A Refrigerant Refrigerant cylinder cylinder - For R32 Refrigerant Refrigerant cylinder cylinder * It is recommended to charge the refrigerant container upside down.
Page 298 COMMISSIONING 3. Location of SVC port (For Split) 1Ø : 5 kW, 7 kW, 9 kW SVC Port (For Split) 1Ø : 12 kW, 14 kW, 16 kW 3Ø : 12 kW, 14 kW, 16 kW SVC Port (For Hydrosplit) 1Ø...
Page 299: Trouble Shooting
COMMISSIONING Trouble shooting operates not properly or it does not start operation, please check following list. CAUTION Turn off the power before proceeding troubleshooting. Troubleshooting for Problem while Operation Problem Reason Solution • Set target temperature correctly. • Setting target temperature is •...
Page 300 COMMISSIONING Troubleshooting for Error Code Display Title Cause of error Check point & Normal condition code Problem in remote room air sensor Problem in refrigerant (inlet side) sensor Problem in refrigerant (outlet • Resistance: 10 kΩ at 25 centigrade (unplugged) → for side) sensor Remote room air sensor Problem in water...
Page 301 COMMISSIONING Display Title Cause of error Check point & Normal condition code Flow switch • It is open while internal water pump is working. • It is closed while internal water Flow switch Problem in flow pump is not working. •...
Page 302 COMMISSIONING Display Title Cause of error Check point & Normal condition code • Malfunction of Compressor • Blocking of Pipe Max. C/T Input Over Current • Low Voltage Input • Refrigerant, Pipe length, Blocked... • Check CN_(L), CN_(N) Connection DC Link High / Low •...
Page 303 COMMISSIONING Display Title Cause of error Check point & Normal condition code Problem in outdoor • Open / Short • Bad connection of thermistor connector air temperature • Soldered poorly • Defect of thermistor connector (Open/Short) sensor • Internal circuit error •...

LG THERMA V HN091MR Installation Manual

Preface

[Chapter 1] SAFETY INSTRUCTIONS

[Chapter 2] INSTALLATION PART

[Chapter 3] GENERAL INFORMATION

Installation of Outdoor Unit

Installation of Indoor Unit

Piping and Wiring for Outdoor Unit

Piping and Wiring for Indoor Unit

Accessories Installation

[Chapter 9] CONFIGURATION

Service Setting

Installer Setting

INSTALLER SETTING (for Split Indoor Unit 5 Series, for Hydrosplit)

[Chapter 10] COMMISSIONING

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Summary of Contents for LG THERMA V HN091MR