Page 1 Installation work must be performed in accordance with the national wiring standards by authorized personnel only. Please retain this installation manual for future reference after reading it thoroughly. Original instruction www.lg.com MFL68681818 Rev.00_070220 Copyright © 2020 LG Electronics Inc. All Rights Reserved.
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 Model name and related information Parts and Dimensions Control Parts Control Panel Typical Installation Example Cycle Diagram : Internal Cycle Diagram : External System planning and preparation [Chapter 4]...
Page 3: Table Of Contents
TABLE OF CONTENTS [Chapter 7] HYDRAULIC CONNECTION FOR INDOOR UNIT General Considerations Connection to the Domestic hot water system Connection to the Heating system Water Charging Water pump Capacity Pressure Drop Performance curve Water Quality Frost protection [Chapter 8] ACCESSORIES INSTALLATION Before Installation Domestic hot water expansion vessel –...
Page 4 TABLE OF CONTENTS RMC master/slave LG Therma V Conﬁguration Forced operation Pump Capacity Pump Prerun/Overrun Password Reset Heating temp. setting Air heating set temp. Water heating set temp TH on/off Variable, heating air TH on/off Variable, heating water Pump setting in heating...
Page 5: Preface
• Check points before starting operation are explained. Chapter 10 • 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.
Page 6: [Chapter 1] Safety Instructions
SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS Read the precautions in this This appliance is filled with manual carefully before flammable refrigerant (R32) operating the unit. This symbol indicates that a This symbol indicates that service personnel should be the Operation Manual should handling this equipment with be read carefully.
Page 7 SAFETY INSTRUCTIONS • Always ground the unit. - There is risk of fire or electric shock. • Install the panel and the cover of control box securely. - There is risk of fire or electric shock. • Always install a dedicated circuit and breaker. - Improper wiring or installation may cause fire or electric shock.
Page 8 SAFETY INSTRUCTIONS • Copper in contact with refrigerants shall be oxygen-free or deoxidized, for example Cu-DHP as specified in EN 12735-1 and EN 12735-2. • Compliance with national gas regulations shall be observed. • Refrigerant tubing shall be protected or enclosed to avoid damage.
Page 9 SAFETY INSTRUCTIONS • Do not place anything on the power cable. - There is risk of fire or electric shock. • Do not plug or unplug the power supply plug during operation. - There is risk of fire or electric shock. •...
Page 10 SAFETY INSTRUCTIONS • If you touch the pipe or internal parts, you should be wear protection or wait time to return to normal temperature. - Otherwise , it may cause burns or frostbite, personal injury. • Turn the main power on 6 hours ago before the product starting operation.
Page 11 SAFETY INSTRUCTIONS • The appliance shall be stored so as to prevent mechanical damage from occurring. • Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants.) •...
Page 12 SAFETY INSTRUCTIONS Operation • Do not use the unit for special purposes, such as preserving foods, works of art, etc. - There is risk of damage or loss of property. • Use a soft cloth to clean. Do not use harsh detergents, solvents, etc.
Page 13 SAFETY INSTRUCTIONS • This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
Page 14: [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. INDOOR UNIT BOX Item Image Indoor Unit Installation Manual Shut-off valve...
Page 15: [Chapter 3] General Information
GENERAL INFORMATION GENERAL INFORMATION With advanced inverter technology, is suitable for applications like under floor heating, under floor cooling, and hot water generation. By Interfacing to various accessories user can customize the range of the application. In this chapter, general information of is presented to identify the installation procedure.
Page 16 GENERAL INFORMATION Buyer Model Name Outdoor unit Series Number Chassis Classification U : Outdoor Unit Refrigerant R : R32 M : Middle Temperature Electrical ratings 1 : 1Ø, 220-240 V AC 50 Hz Heating Capacity Ex) “05” : 5 kW, “07” : 7 kW, “09” : 9 kW Classification U : Outdoor Unit H : Air to Water Heat Pump...
Page 17: Model Name And Related Information
GENERAL INFORMATION Model name and related information Model Name Capacity Built-In Backup Power Source Heater(kW) (Unit) Outdoor Unit Indoor Unit Heating Cooling Refrigerant (kW) *1 (kW) *2 Capacity (kW) Tank Capacity (L) 1Ø 2 (2) 220-240 V~ 1Ø 4 (2+2) 50 Hz 3Ø...
Page 18: Parts And Dimensions
GENERAL INFORMATION Parts and Dimensions Indoor unit : External (unit : mm) 107.7 62.6 62.6 107.4 65.2 Description SAE 5/8" Refrigerant gas pipe SAE 3/8" Refrigerant liquid pipe G3/4" Domestic hot water outlet G3/4" Domestic cold water Inlet G3/4" DHW Re-circulation G1"...
Page 19 GENERAL INFORMATION Indoor unit : Internal (unit : mm) Description Item Item Domestic hot water tank Indoor unit PCB Electric heater Terminal blocks Flow sensor Magnesium anode Plate-heat-exchanger (Refrigerant/Water) DHW tank sensor 3-way-valve DHW / Heating Plate-heat-exchanger (Water/DHW) Pressure gauge DHW water pump Expansion vessel for Heating DHW strainer...
Page 20 GENERAL INFORMATION Outdoor unit : External Product Heating Capacity : 5 kW,7 kW,9 kW 4-holes for anchor bolts U4 Chassis (unit : mm) Supporter Description Name Liquid-side Service Valve Gas-side Service Valve Air discharge Grille...
Page 21: Control Parts
GENERAL INFORMATION Control Parts Control Box : Indoor Unit Description Name Remark The main PCB(Printed Circuit Board) controls the functioning Main PCB of the unit Terminal blocks The terminal blocks allow easy connection of field wiring Safety thermostat for The safety thermostat protects the backup heater against Electric heater overload or short circuit Electric heater Relay...
Page 22: 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 Back button When you move to the previous stage from the menu’s 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 23: 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 24 GENERAL INFORMATION CASE 2 : Connecting mixed Circuit [Room A] Circuit 2 (Low Temp.) circuit temp. sensor Domestic hot water Outdoor Indoor City water Mix Kit Floor heating loop Floor heating loop M / F [Room B] Circuit 1 (High Temp.) Buffer Tank Outdoor Unit...
Page 25 GENERAL INFORMATION CASE 3 : Connecting 3 Party Boiler Domestic hot water Outdoor Indoor City water M / F Boiler Buffer Tank Floor Floor Floor heating loop heating loop heating loop Outdoor Unit Indoor Unit NOTE • DHW tank - 3rd Party Boiler - You can control the boiler automatically and manually by comparing the outside temperature and the set temperature.
Page 26: Cycle Diagram : Internal
GENERAL INFORMATION Cycle Diagram : Internal <Refrigerant Side> <Water Side> : Hot Water : Cold Water : Domestic Hot Water : Cooling : Domestic Cold Water : Heating : DHW re-circulation Pressure Gauge Shut-off Valve Shut-off with Valve Strainer Air Vent Drain/Fill cock Flow...
Page 27: Cycle Diagram : External
GENERAL INFORMATION Cycle Diagram : External The following diagram shows an exemplary installation scene. For other examples, please ask your local LG Partner for support. CAUTION The diagram represents a schematic overview of the required system components and their location. It does not include all necessary components and safety devices according to DIN EN 12828, and eventually required equipment for maintenance and service.
Page 28: System Planning And Preparation
GENERAL INFORMATION System planning and preparation The design of the system must be planned and executed by a professional HVAC installer according to European and National regulations and Standards. The following points should be explicitly taken into account. CAUTION • Make sure that the minimum water flow rate as given in the Specification is never undercut.
Page 29: 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 30: 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 31 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 32: Installation At Seaside
INSTALLATION OF OUTDOOR UNIT Installation at Seaside CAUTION • AWHP 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 33: 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 34: Transporting The Unit
INSTALLATION OF INDOOR UNIT Service Space - Ensure that the spaces indicated by arrows around front, right, and top side. - Wider spaces are preferred for easy maintenance and piping. - If minimum service space is not secured, air circulation can be troubled and internal parts of the indoor unit can be damaged by overheating.
Page 35: Connecting Condensate Drainage
INSTALLATION OF INDOOR UNIT Connecting Condensate drainage ② Step 1. Before the indoor unit’s final positioning, attach the flexible Ø16 hose to the drainpipe, which has been prepared in advance. Insert the drainage hose into the drain ①, which leads to the sinkhole or storm drain.
Page 36: Floor Area Requirement : Indoor Unit
INSTALLATION OF INDOOR UNIT Floor area requirement : indoor unit ) is in system ≥1.842 kg, additional minimum floor area requirements - If the total refrigerant charge (m is complied in the following flow chart. Room A Room B > 0.5 * AV >...
Page 37: 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 300mm from the floor.
Page 38 INSTALLATION OF INDOOR UNIT Table 2 - Minimum floor area Total Ref. Minimum Floor Area A Based on h 1.2m Amount m (kg) 1.84 7.20 1.86 7.36 1.88 7.52 1.90 7.68 1.92 7.84 1.94 8.01 1.96 8.17 1.98 8.34 2.00 8.51 2.02 8.68...
Page 39 INSTALLATION OF INDOOR UNIT Table 3 - Minimum venting opening area for natural ventilation Minimum opening area AV ) (Based on h 1.2m) Total Ref. Amount m (kg) room NOTE • The value of "Release height (h )“ in this unit is considered 1200 mm to comply to IEC 60335-2-40:2013 A1 2016 Clause GG2.
Page 40: 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 41 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 42 INSTALLATION OF INDOOR UNIT Point for attention regarding quality of the public electric power supply This equipment complies with respectively: - EN/IEC 61000-3-12 (1) provided that the short-circuit power Ssc is greater than or equal to the minimum Ssc value at the interface point between the user's supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment is connected only to a supply with respectively: Ssc greater than or equal to the minimum Ssc value.
Page 43: 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. Refrigerant Piping Before starting refrigerant piping, constraints in pipe length and elevation should be examined.
Page 44: 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 45: 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 46 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 47 PIPING AND WIRING FOR OUTDOOR UNIT Domestic Water In Domestic Water Out Water Water Outlet Inlet CAUTION After checking and confirming following conditions, start wiring work. • Secure dedicated power source for the Air-to-Water heat pump. The wiring diagram (attached inside the control box of the indoor unit) is presenting related information. •...
Page 48: 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 49: Leakage Test And Evacuation
PIPING AND WIRING FOR OUTDOOR UNIT Leakage test and Evacuation Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. - Pressure in the system rises. - Operating current rises. - Cooling(or heating) efficiency drops. - Moisture in the refrigerant circuit may freeze and block capillary tubing. - Water may lead to corrosion of parts in the refrigeration system.
Page 50 PIPING AND WIRING FOR OUTDOOR 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. Then, run the vacuum pump. The operation time for evacuation varies with tubing length and capacity of the pump.
Page 51: Electrical Wiring
PIPING AND WIRING FOR OUTDOOR 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 52 PIPING AND WIRING FOR OUTDOOR UNIT Terminal Block Information 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 Opening or closing water flow for FCU cooling...
Page 53 PIPING AND WIRING FOR OUTDOOR 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 Terminal block at outdoor unit 2(N) 1 2 3 1(L)
Page 54 PIPING AND WIRING FOR OUTDOOR UNIT Electric Heater Wiring CAUTION Power Cable Specification : The power cord connected to the electric heater 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 55: Hydraulic Connection For Indoor Unit
HYDRAULIC CONNECTION FOR INDOOR UNIT HYDRAULIC CONNECTION FOR INDOOR UNIT Procedures about water piping at the indoor unit are described in this chapter. General considerations, water piping, water charging, and pipe insulations will be shown for hydraulic connection procedures. The other accessories connection, such as DHW expansion vessel, buffer tank, thermostat, 2way valves, etc will be dealt in separated chapter.
Page 56 HYDRAULIC CONNECTION FOR INDOOR UNIT While connecting water pipes, followings should be considered. - Pipe fittings (e.g. L-shape elbow, T-shape tee, diameter reducer, etc) should be tightened strongly to be free from water leakage. - Connected sections should be leakage-proof treatment by applying teflon tape, rubber bushing, sealant solution, etc.
Page 57: Connection To The Domestic Hot Water System
HYDRAULIC CONNECTION FOR INDOOR UNIT Connection to the Domestic hot water system The hydraulic connection has to be installed in accordance with the national and local regulations for connecting buffer tanks for DHW to enable the water flow in full force. To prevent water leakage, install a drain through the floor below the level of the device.
Page 58 HYDRAULIC CONNECTION FOR INDOOR UNIT Shut-off valve Check valve Pressure reducing valve Circulation pump Safety valve (10 bar) Expansion vessel (Accessory) Domestic hot water(DHW) Domestic cold water DHW re-circulation (Optional) CAUTION • Because different materials are used on the pipe installation, all connections on the device (cold and hot water, circulation, heat conductor) have to be galvanically isolated;...
Page 59 HYDRAULIC CONNECTION FOR INDOOR UNIT Setting the pressure for the expansion vessel for DHW NOTE • The cold DHW connection must be fitted with an expansion vessel suitable for drinking water. The selection and installation must be in accordance with the standard DIN 4807 T5. •...
Page 60: Connection To The Heating System
HYDRAULIC CONNECTION FOR INDOOR UNIT Connection to the Heating system The selection of circulation pumps, valves, safety elements and pipes has to be performed by the design engineer according to the heating/cooling capacity of the device and minimum water flow rate.
Page 61 HYDRAULIC CONNECTION FOR INDOOR UNIT CAUTION • For normal operation of the expansion vessel, it is necessary to perform proper adjustments of the vessel’s working pressure. The integrated vessel is supplied with a factory pre-charge of 0.75 bar. The settings have to be checked every 12 months. •...
Page 62: Water Charging
HYDRAULIC CONNECTION 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 63: Water Pump Capacity
HYDRAULIC CONNECTION 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 64: Performance Curve
HYDRAULIC CONNECTION FOR INDOOR UNIT Performance curve Indoor: HN0916T.NB1 Pump model (heating) : WILO Para KU 25-130/8-75/12 iPWM1...
Page 65 HYDRAULIC CONNECTION FOR INDOOR UNIT Pump model (DHW) : WILO ZRS 15/6-3 KU ZRS../6-3 Ku Water flow (m WARNING Selecting a water flowrate outside the curves can cause damage to or malfunction of the unit.
Page 66: Water Quality
HYDRAULIC CONNECTION 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 • The heating system has to be filled with water with the hardness between 5 °dH and 10 °dH.
Page 67: Accessories Installation
In this chapter, specifications about supported 3rd party accessories and how to connect to is introduced. The Product is designed to work with the following LG accessories. Regarding any other compatible accessories refer to Product Databook or ask your local dealer. Accessories supported by LG Electronics...
Page 68: 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. Domestic hot water expansion vessel –...
Page 69: Buffer Tank - Integrated Into The Unit
ACCESSORIES INSTALLATION Step 2. Place the vessel (①) on top of the holder (④) and fasten the connection pipe from below. ① ④ Connection part Buffer tank – integrated into the unit How to install Buffer tank [Parts of Buffer tank] ①...
Page 70 ACCESSORIES INSTALLATION Step 2. Use the Shut-off valve with strainer supplied with the indoor unit and mount it to the inlet pipe assembly. Then screw the double nipple to the bottom part of the valve. Then, attach the assembly as shown in the picture.
Page 71 ACCESSORIES INSTALLATION Step 3. Connect the outlet pipe assembly and the Shut-off valve – provided with the indoor unit – as shown below. Step 4. Finally, assemble the Return pipe from the Heating system at the free connector. ④ ② ①...
Page 72: Thermostat
ACCESSORIES INSTALLATION Thermostat Thermostat is generally used to control the product by air temperature. When thermostat is connected to the product, the product operation is controlled by the thermostat. Installation condition CAUTION • USE 220-240 V~ Thermostat • Some electro-mechanical type thermostat has internal delay time to protect compressor. In that case, mode change can takes time more than user's expectation.
Page 73 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 Only (3) Electrical 230 V~ Heating / Cooling (4) (1) There is no electric circuit inside the thermostat and electric power supply to the thermostat is not required.
Page 74 ACCESSORIES INSTALLATION How to wire thermostat 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 75 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. - Button input is prohibited. Mixing Circuit The 2nd circuit is generally used to control the temperature of 2 rooms differently.
Page 76 ACCESSORIES INSTALLATION How to Wire Mixing Kit 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 (L) : Live signal from PCB to mix pump (N) : Neutral signal from PCB to mix pump (L1) : Live signal (for Normal* Closed type) from PCB to MIXING VALVE...
Page 77: 3Rd Party Boiler
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 78: 3Rd Party Controller
3rd Party Controller The product can also be linked to 3rd party controller. You can connect external controllers using Modbus protocol except for LG controller. If 3rd party controller is used, LG controller is not applied to AWHP simultaneously. How to wire 3rd party controller Follow below procedures step 1 ~ step 4.
Page 79: Meter Interface
ACCESSORIES INSTALLATION Meter Interface This product can be used by connecting the meter interface module supplied in the field. The meter interface module can communicate with the wired remote controller. The meter interface module lets you know the amount of power generated by the product. - For detailed installation method refer to meter interface Installation Manual.
Page 80: 80 2 Zone Controller
ACCESSORIES INSTALLATION 2 Zone Controller This product can be used by connecting the 2 zone controller module supplied in the field. The 2 zone controller module can communicate with the wired remote controller. The 2 zone controller module lets you enable the individual control of each zone. - For detailed installation method refer to 2 zone controller installation manual.
Page 81: Central Controller
/ stop, Warm water temperature, Full lock, Etc) LG Central controller Item Purpose Model ACP 5 PACEZA000 To control AWHP using LG central controller AC Smart 5 PACS5A000 ACP Ez Touch PACP5A000 Accessories for Central controller Item Purpose...
Page 82 ACCESSORIES INSTALLATION How to Installation Modbus gateway Connect the Modbus gateway as shown in below diagram. For detailed installation method refer to Modbus gateway Installation Manual. BMS/ party controller PI485 Outdoor unit PCB RS485 DIGITAL INPUT LD02M LD03M LD05M SW_01M SW_02M RST_2 RS485...
Page 83: 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 84 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 85: External Controller - Setting Up Programmable Digital Input Operation
ACCESSORIES INSTALLATION External Controller - Setting up programmable digital input operation If you require 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. CN_EXT Step 2.
Page 86: 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 87 ACCESSORIES INSTALLATION CN_ROOM Fixing screws 60 mm Sensor Indoor PCB [fig. 1] [fig. 2] Fixing the Step 6. Integrate the remote temperature sensor with the screws Remote Sensor as the order of arrows. CAUTION • Choose the place where the average temperature can be measured for the unit operates. •...
Page 88: 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 89: 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. How to install Wi-ﬁ Modem [Parts of Wi-fi modem] Wi-fi modem body USB Cable Extension Cable Follow below procedures step 1 ~ step 5.
Page 90: Smart Grid
ACCESSORIES INSTALLATION Smart Grid This product provides smart grid 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 signal Follow below procedures step 1 ~ step 3. Step 1.
Page 91: 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.
Page 92: 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 - Pressure of Supplying water should be Under 3.0 bar Hydraulic pressure...
Page 93: [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 CAUTION Turn off electric power supply before setting DIP switch •...
Page 94 CONFIGURATION DIP Switch Information Option Switch 2 Description Description Setting Setting Default Default As Master Group control As Slave Unit + Outdoor unit + DHW tank Accessory installation is installed information Reserved Heating Only Cycle Heating & Cooling Reserved Reserved Reserved Electric heater is not used Electric heater is used...
Page 95 CONFIGURATION Option Switch 1 Description Setting Default Description Description Setting Setting Default Default As Master MODBUS Communication Type As Slave Reserved Reserved Reserved Reserved Reserved Reserved Option Switch 3 Description Description Setting Setting Default Default Remote sensor is not installed Remote Room air sensor Description Setting...
Page 96 CONFIGURATION Outdoor PCB (5, 7, 9 kW) U4 Chassis OFF is selected ON is selected DIP Switch Information Description Description Setting Setting Default Default Normal Low Noise Mode Low Noise Mode Limited Low Noise Mode Max Mode Peak Control Peak Control : To limit maximum current (Power saving) h Only DIP-switch no.
Page 97 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 98 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 99: 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 100: 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 101: 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 unit capacity - 1 kWh = 1 kBtu * 0.29307 kWh is the result calculated based on Btu, There may be a small difference between calculated and actual capacity.
Page 102: 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 103: 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 104: 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 105: Installer Setting
This function is to set master / slave to use two remote controllers RMC master/slave in one indoor unit. This function can be set to save the environment settings of the LG Therma V Configuration product for use in LG Therma V Configurator through SD Card. (LG heating configurator) General Function Description...
Page 106 INSTALLER SETTING Room Cooling Function Description At the water control in cooling mode, the control reference Cooling temp. setting water temperature position setting. Air cooling set temp. Adjusting range of 'Setting Air Temperature' in cooling mode. Adjusting range of 'Setting Leaving Water Temperature' in Water cooling set temp.
Page 107 INSTALLER SETTING Connectivity Function Description Dry contact function is the function that can be used only when the Dry Contact Mode dry contact devices is separately purchased and installed. Selection for setting temperature as air temperature or leaving Central Control Address water temperature or air+leaving water temperature.
Page 108: Overview Settings
........111 Select Temperature Sensor ........112 Use Heating Tank Heater ........113 Mixing Circuit ........114 Use External Pump ........115 RMC master/slave ........116 LG Therma V Configuration General ........117 Forced operation ........118 Pump Capacity ........119 Pump Prerun/Overrun ........120 Password Reset Room Heating ........121 Heating temp.
Page 109 INSTALLER SETTING Room Cooling ........130 Cooling temp. setting ........131 Air cooling set temp........132 Water cooling set temp........133 Water supply off temp. during cooling ........135 TH on/off Variable, cooling air ........136 TH on/off Variable, cooling water ........137 Pump setting in cooling Auto Mode ........138 Seasonal auto temp...
Page 110 INSTALLER SETTING Information ........159 Pump operation time ........160 IDU operation time ........161 Current Flow Rate ........162 Data logging...
Page 111: Select Temperature Sensor
INSTALLER SETTING Select Temperature Sensor The product can be operated according to air temperature or leaving water temperature. The selection for setting temperature as air temperature or leaving water temperature is determined. • In the installer setting list, Select Temperature Sensor category, and press [OK] button to move to the detail screen.
Page 112: Use Heating Tank Heater
INSTALLER SETTING Use Heating Tank Heater This is a function to determine the delay time of the electric heater for water tank. • In the installer setting list, Select Configuration category, and press [OK] button to move to the detail screen. Function Unit Default...
Page 113: Mixing Circuit
INSTALLER SETTING Mixing circuit Function to set whether or not to use a installed mixing circuit function using mixing kit. You can set valve closing time[s] and hysteresis temperature[°C] on screen by yourself. Activating this function, It allows 2 zones(Circuit1, Circuit2) temperature to be controlled, separately.
Page 114: 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 (Default)
Page 115: 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 116: Lg Therma V Configuration
INSTALLER SETTING LG Therma V Conﬁguration This function can be set to save the installation settings of the product for use in LG Therma V Configurator through SD Card (LG heating configurator). • In the Installer setting list, and select LG Therma V Configuration setting category, and press [OK] button to move to the detail screen.
Page 117: Forced Operation
INSTALLER SETTING Forced operation • If the product is not used for a long time, the main water pump will be forced to operate for preventing pump failure and PHEX freezing. • Water pump off After 20 consecutive hours, disable / enable the logic that drives the water pump by itself •...
Page 118: Pump Capacity
INSTALLER SETTING Pump Capacity It is a function to enable installer to control the main water pump capacity application model. • In the installer setting list, select Pump Capacity category, and press [OK] button to move to the detail screen. Value Description 10~100 : %...
Page 119: 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 is a function to prevent water pump failure and to help mechanical life. Value Default Setting Range...
Page 120: Password Reset
INSTALLER SETTING Password Reset It is the function to reset (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 121: 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 122: 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 123: 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 124: 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 125: 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 126: 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 127: Heater On Temperature
INSTALLER SETTING Heater on temperature Depending on local climatic conditions, it is necessary to change the temperature condition in which electric heater turns on / off. • In the installer setting list, Heater on temperature category, and press [OK] button to move to the detail screen.
Page 128: 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 129 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 130: 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 131: 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 132: 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 133: 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 134 INSTALLER SETTING - Stop temp. : cut-off temperature. Stop temp. is valid when FCU is installed. - 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 135: 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 heating operation. • You can set the following setting values using [<,>(left/right)] button. Description Value TH On...
Page 136: 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 heating operation. • You can set the following setting values using [<,>(left/right)] button. Description Value TH On...
Page 137: 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 138: 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. Function Description Range...
Page 139 INSTALLER SETTING - Setting range: Celsius - Seasonal Auto Driving mode: 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 140: 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 Max.
Page 141: Tank Disinfection Setting 1
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 142: Tank Setting1
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 30 ~ 1 °C Comp. Limit Temp 55 °C 58 ~ 40 °C...
Page 143: Tank Setting2
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 4 ~ 2 °C...
Page 144 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 145: 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 146: Pump Test Run
INSTALLER SETTING Pump test run The pump test run is the function to test run by operating the water pump. This function can be used for air vents / flow sensors and others. • In the installer setting list, Pump Test run category, and press [OK] button to move to the detail screen.
Page 147: Frost Protection Temp
INSTALLER SETTING Frost Protection Temp. Frost protection temperature setting is available in installer mode. It prevents frostbite from happening In the range of -25 to -5 degree celsius. • Change setting values using [<, >(left/right)] button. NOTE To use this function, the antifreeze short pin(CN_FLOW2) must be open and switch No.2 in Option SW 3 must be on.
Page 148: 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 Auto (Default) manual NOTE For dry contact mode related detail functions, refer to the individual dry contact manual. What is dry contact? It means the contact point signal input when the hotel card key, human body detection sensor, etc.
Page 149: 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 150: 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 151: Smart Grid (Sg)
INSTALLER SETTING Smart Grid (SG) It is the function to enable / disable the Smart Grid function and to set the reference value at SG2 status. • In the installer setting list, select Smart Grid(SG) category, and press [OK] button to move to the detail screen.
Page 152: 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 153: 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 154: 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 155: 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 156: 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 157: Zone
INSTALLER SETTING Zone It is the function to set the environment and check the operating status when using the 2 Zone module. In the installer setting list, select the zone category, and press [OK] button to move to the detail screen.
Page 158 INSTALLER SETTING <Valve test> This function is provided to check if each valve works properly after installing / setting the zone module. Value1 Value2 Description Start / Stop Open / Close When selecting zone, the status is “OPEN” NOTE If the test is not stopped after the start of valve test, the test is automatically terminated after 60 minutes.
Page 159: Pump Operation Time
INSTALLER SETTING Pump operation time It is a function to show the main 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 160: 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 161: 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 162: 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 163: [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 164: 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 165: Starting Operation Flow Chart
COMMISSIONING Starting Operation ﬂow chart START Check whether the power cable and Is hot water discharged for communication cable are completely connected more than 3 minutes ? Is cold 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 166: 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. SVC Port Manifold gauge Manifold valve Pressure gauge Open...
Page 167 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. SVC Port Manifold gauge Refrigerant cylinder Refrigerant Refrigerant cylinder cylinder...
Page 168 COMMISSIONING 3. Location of SVC port 1Ø : 5 kW, 7 kW, 9 kW SVC Port...
Page 169: Decommissioning And Recycling
COMMISSIONING Decommissioning and Recycling • Sort the packaging according to cardboard, wood and foil and dispose of it in appropriate containers. • After the lifespan of the device ends it has to be disposed of in accordance with the legislation on waste electrical and electronic devices in force.
Page 170 COMMISSIONING 3. Draining the DHW tank Use the drain valve shown below to drain the Domestic hot water tank and circuit. The drain valve CAUTION Turn off the power supply of the heat pump before draining the unit. • Turn off the unit •...
Page 171: Troubleshooting
COMMISSIONING Troubleshooting 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 •...
Page 172 COMMISSIONING Troubleshooting for Error Code Display Title Cause of error Check point & Normal condition code Problem in remote room air sensor • Resistance: 10 k at 25 centigrade (unplugged) → for Remote room Problem in refrigerant (inlet side) sensor air sensor Problem in refrigerant (outlet side) sensor •...
Page 173 COMMISSIONING Display Title Cause of error Check point & Normal condition code • Abnormal operation of electric • If there is no problem in electric heater control, possible Water pipe heater maximum leaving water temperature is 57 °C(R410A)/65 overheated • Leaving water temperature is above °C(R32) 57 °C(R410A)/65 °C(R32) •...
Page 174 COMMISSIONING Display Title Cause of error Check point & Normal condition code • Defective low pressure sensor • Defective unit fan • Refrigerant shortage/leakage • Deformation because of damage of refrigerant pipe • Defective unit EEV Low Presser Error Excessive decrease of low pressure •...
Page 175 COMMISSIONING Display Title Cause of error Check point & Normal condition code 1. Part no. : EBR37798101~09 - Check the heatsink sensor: 10 k / at 25 °C(Unplugged) - Check the outdoor fan is driving rightly 2. Part no. : EBR37798112~21 Heat sink Temp, Heat sink sensor detected high - Check the soldered condition in the 22,23 pin of IPM,...
Page 176: Reset Of The Thermal Protection Of The Electric Heater
COMMISSIONING Reset of the thermal protection of the electrical heater The thermal protection of the electrical heater is an additional safeguard protecting the device in the following cases: • The electrical relay, which turns on the electrical flow heater can be permanently short- circuited.
Page 177 The information for Eco design is available on the following free access website. https://www.lg.com/global/support/cedoc/cedoc [Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands [Manufacturer] KRONOTERM d.o.o, Tranava 5E, 3303 Gomilsko, Brezovica, Slovenia...

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LG THERMA V HN0916T 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

Hydraulic Connection for Indoor Unit

Accessories Installation

[Chapter 9] CONFIGURATION

Service Setting

Installer Setting

[Chapter 10] COMMISSIONING

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Summary of Contents for LG THERMA V HN0916T

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