LG THERMA V Split Comprehensive Application And Installation Manual Download Page 45

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Comprehensive application

and installation manual

LG Electronics Home Appliance & Air Solution Company, Air Solution Division
July 2018
LG Electronics Gasan A B/D, 56, Digital-ro 10-gil, Geumcheon-gu, Seoul, Korea
http://partner.lge.com

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Issued date
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All rights are reserved by LG Electronics.

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Summary of Contents for THERMA V Split

Page 1: ...Comprehensive application and installation manual Visual Elements Logo Life s Good Split ...

Page 2: ...Navigation Bar The different category are shown at the side So you can go directly to the index page with a single click Installation check list Configuration System Design Applications Introduction ...

Page 3: ... System 10 037 11 System 11 039 12 System 12 044 Ⅲ Configuration 1 Controller configuration 048 2 Dip S W Setting 052 Ⅳ Installation check list 1 Checklist 056 2 Test run 077 Please read this guide completely before installing the product Installation work must be performed in accordance with the national wiring standards by authorized personnel only Please retain this guide for future reference a...

Page 4: ...I Introduction 1 Overview 2 Cycle Diagram 3 Product Diagram Installation check list Configuration System Design Applications Introduction Split ...

Page 5: ...eaning PCB Connector Remarks Indoor Unit Th1 Remote air temperature sensor CN_ROOM Optional accessory being sold separately Not shown in diagram Th2 Inlet evaporator temperature sensor CN_PIPE_IN Meaning is expressed based on Cooling mode Th3 Outlet evaporator temperature sensor CN_PIPE_OUT Outdoor Unit Th4 Compressor suction pipe temperature sensor CN_SUCTION Th5 Compressor discharge pipe tempera...

Page 6: ...hange between refrigerant and water 11 Pressure Gage Indicates circulating water pressure 12 Expansion Tank Absorbing Volume change of heated water 13 Air Vent Air purging when Charging water 14 Electric Heater Please refer to the below Page Model name and related information 15 Strainer Filtering and stacking particles inside circulating water 16 Shut off valve To drain or to block water when pip...

Page 7: ...ty Dry contact IDU IDU FCU UFH DHW Temp sensor DHW Temp sensor Buffer tank IDU External pump IDU O X X 2Way valve System diagram Space heating cooling DHW Booster heater Remark System 7 3way V V 2Way valve Smart ThinQ DHW tank DHW Temp sensor IDU IDU Remote room sensor Thermostat IDU DHW tank DHW tank DHW Temp sensor IDU IDU DHW tank DHW Temp sensor IDU IDU IDU Controller 3rd party Dry contact IDU...

Page 8: ... 4 5 6 7 8 System diagram IDU Remote room sensor Purpose Configuration for generic floor heating and cooling by utilizing indoor air temperature sensor Can be set up generally with radiator and floor heating coils and product is operated based on indoor air temperature setup Necessary configuration and feature Dip s w N A Keep default Check if 2 and 3 are off Remote controller Use the default one ...

Page 9: ...ection Air System diagram DHW tank DHW Temp sensor IDU Purpose Configuration for DHW exclusive operation System is set up by connecting piping to heat exchanger installed in DHW tank Necessary configuration and feature Dip s w Separate setup is required Dip s w No 3 On Remote controller Use the default one attached to indoor unit No installation required Leaving water temperature DHW temperature i...

Page 10: ...t or fluctuation of conditions is drastic Booster heater must be installed if DHW operation requires sterilization Necessary configuration and feature Dip s w Separate setup is required Dip s w No 3 On Remote controller Use the default one attached to indoor unit No installation required Leaving water temperature Set up by remote controller Single temperature control Control of DHW temperature sen...

Page 11: ..._B HEAT A white connector of the indoor unit PCB with magnetic switch contact using en closed cable symbol Ⓑ at the picture Connect magnetic switch contactor port no A1 and A2 Step 3 Connect magnetic switch contactor port no L1 and L3 with ELB MCCB port no 2 and 4 symbol Ⓒ at the picture Step 4 Connect magnetic switch contactor port no T1 and T3 with terminal block 1 port 6 and 7 sym bol Ⓓ at the ...

Page 12: ...N L N A WATER TANK HEATER BR BL 6 L 7 N Installer setting For DHW operation Select on installer setup whether to use booster heater alone or both backup heater and booster heater Sterilization is required in order to suppress germs in water stored in tank when installing DHW tank Set up whether to enable sterilization operation sterilization temperature and duration 022 023 _COMPREHENSIVE APPLICAT...

Page 13: ...ller setting Installer of remote controller needs to be set up separately Dip s w Setting OFF ON 1 2 3 4 5 6 7 8 Installing temperature sensor and 3Way v v Connect solar thermal sensor to CN_TH4 Red connector of the indoor unit PCB If the DHW tank sensor is connected disconnect the sensor from PCB first Separate connector and set p is required when installing both DHW temperature sensor and solar ...

Page 14: ...ting in winter while focusing on FCU in summer Install 2Way valve and set temperature to prevent dewing on floor Necessary configuration and feature Dip s w N A Keep default Check if 2 and 3 are off Remote controller Use the default one attached to indoor unit No installation required Leaving water temperature Set up by remote controller Single temperature control Control of leaving water temperat...

Page 15: ...14 15 16 Normal Open type should be connected to wire NO and wire N for valve closing in cooling mode NO Live signal for Normal Open type from PCB to 2way valve NC Live signal for Normal Closed type from PCB to 2way valve N Neutral signal from PCB to 2way valve Power 230V AC Example of 2Way valve Field Scope 2way valve NO NC N 2WAY VALVE A L1 L2 N 14 15 16 Voltage 220 240 V 50 Hz Protection class ...

Page 16: ...Controller To be purchased from 3rd party Required Installer setting Remote controller needs to be set up separately Dip s w Setting OFF ON 1 2 3 4 5 6 7 8 Instaling dry contact LG Dry Contact is a solution for automatic control of air conditioning system at the owner s behest In simple words it s a switch which can be used to turn the unit On Off after getting the signal from external sources lik...

Page 17: ...ving water tempera ture Set up by remote controller Single temperature control Control of leaving water temperature Thermostat Installation Thermostat is an option and needs to be purchased and installed separately Spec 230V Installer setting Remote controller does not need to be set up separately Dip s w Setting OFF ON 1 2 3 4 5 6 7 8 Manual off signal from drycontact Prod uct shall be off and lo...

Page 18: ...ALVE A THERMOSTAT Default 230V AC 1 L 2 N 3 L1 L2 N L N L1 L2 11 12 13 14 15 16 17 18 19 20 Thermostat L N C H THERMOSTAT Default 230 V AC 17 L BR 18 N BL 19 L1 WH 20 L2 BK L Live signal from PCB to thermostat N Neutral signal from PCB to thermostat C Cooling signal from thermostat to PCB H Heating signal from thermostat to PCB Installer setting N A System diagram IDU Purpose Configuration for sup...

Page 19: ...k and external pump when the room to provide floor heating for is too large and requires pump of a bigger capacity Buffer tank enables a highly efficient operation while external tank provides stable flow Necessary configuration and feature Dip s w Separate setup is required Dip s w No 5 On 2 3 off Remote controller Use the default one attached to indoor unit Leaving water tempera ture Set up by r...

Page 20: ... DDC controller option Thermostat option Electric Power Additional power Installer setting N A System diagram Smart ThinQ IDU Purpose Enabling remote system operation from smartphone Available functions include selection of operation mode DHW temperature setup and scheduling Necessary configuration and feature Dip s w Separate setup is required Default Remote controller Use the default one attache...

Page 21: ... to the location where you want to install the Wi Fi modem 5 Connect the Wi Fi modem to the USB cable 6 Attach the Wi Fi modem to a wall or ceiling near the router Use the included double sided tape to fix it in place Name Quantity Appearance Wi Fi Modem 1 USB Cable 60 cm 1 Extension Cable 50 m 1 USB Extension Cable 10 m 1 USB Extension Cable Sold Separately Model PWYREW000 Control configuration T...

Page 22: ...gistration Tap Create account to make a new account Tap the button Select a product to register Ex AWHP There are diverse ways to make an account and register the product other than the aforementioned way Refer to user manual Installer setting Controller Pair the product after installing Wifi modem Tap Settings on menu and go to Function for pairing Tap the button to register Ex AWHP 042 043 _COMP...

Page 23: ...s to be pur chased and installed Installing 3Way v v To be purchased and installed separately Booster heater If applied and tank kit is not used Separate option Dip s w Setting OFF ON 1 2 3 4 5 6 7 8 Installing temperature sensor and 3Way v v Connect solar thermal sensor to CN_TH4 Red connector of the indoor unit PCB If the DHW tank sensor is connected disconnect the sensor from PCB first Separate...

Page 24: ...ANK HEATER 3WAY VALVE A L L1 N L N L L L1 N N 1 2 3 4 5 6 8 9 7 10 Sensor Thermister energizing water pump for solar thermal system water flow switching between under floor heating and DHW tank heating water flow switching between using solar thermal heating and skipping solar thermal heating turn on or off DHW tank heater 3WAY VALVE B WATER PUMP B WATER TANK HEATER 3WAY VALVE A L L1 N L N L L L1 ...

Page 25: ...uct yields cool water to use in FCU cooling Heat The product yields hot water to use in under floor heating or FCU heating AI Auto In this mode heating setpoint is automatically determined by pre defined temperature profile Controller User setting Setting Function Low noise mode time User Language Temperature Unit Screen saver timer LCD brightness in idle Date time summer time password schedule in...

Page 26: ...er supply off temp during cooling For setting up FCU and setting temperature to stop water supply Tank disinfection setting 1 Setting up sterilization function and date time to activate it Tank disinfection setting 2 Setting up target temperature and duration of sterilization Setting Tank setting 1 Setting up minimum temperature of DHW and maximum tem perature of Heat Pump Tank setting 2 Setting u...

Page 27: ...installation information 5 off External water pump is NOT installed 5 on External water pump is Installed 5 off 5 Selecting electric heater capacity 6 7 off Full capacity is uesd 6 off 7 on Half capacity is uesd 6 on 7 off Electric heater is not used 6 off 7 on 6 Thermostat installation information 8 off Thermostat is NOT installed 8 on Thermostat is installed 8 off OFF ON 1 2 3 4 5 6 7 8 PCB Dip ...

Page 28: ...IV Installation Checklist 1 Checklist 2 Test run Installation check list Configuration System Design Applications Introduction Split ...

Page 29: ...or unit installed and fixed firmly Wooden pallet removed and fixed with anchor 9 Installation Common Is the outdoor unit installed at an appropriate loca tion Consider air flow noise and being under the eaves and etc 10 Electric Common Is there a proper protective measure or earthing against lightning 11 Electric Common Is capacity of power lines and circuit breaker se lected based on the latest c...

Page 30: ...ipings Applicants AWHP SPLIT Connect the manifold valve with pressure gauges and dry nitrogen gas cylinder to this service port with charge hoses Charge hose Outdoor unit Manifold valve Lo Hi Pressure gauge Nitrogen gas cylinder in vertical standing position A Nitrogen gas B Manifold gauge C Low pressure cover D High pressure cover E Liquid pipe F Gas pipe G Service port Indoor unit Be sure to use...

Page 31: ...he valve stem of gas side valve counter clock wise to fully open the valve 3 Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose 4 Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system 5 Replace the...

Page 32: ... check Is the indoor unit installed in the building and installed and fixed ac cording to the installation manual Result Purpose Installation of indoor unit Applicants AWHP SPLIT The installation place should be free from outdoor weather conditions such as rain snow wind frost etc Choose the place where is water resistant or good drainage Service space should be secured No flammable materials arou...

Page 33: ...heck Is the outdoor unit installed and fixed firmly Removal of wooden pal let and fixing with anchor Result Purpose Installation of outdoor unit Applicants AWHP SPLIT Check the strength and level of the installation ground so that the unit will not cause any vibration or noise after installation Fix the unit securely by means of the foundation bolts Prepare 4sets of M12 foundation bolts nuts and w...

Page 34: ...turb neighbors Place that can sufficiently endure the weight and vibration of the outdoor unit and where even installa tion is possible Place that has no direct influence from snow or rain Place with no danger of snowfall or icicle drop Place without weak floor or base such as decrepit part of the building or with a lot of snow accumulation 1 10 Connect electric wire Items to check Is there a prop...

Page 35: ...ect the pipe in the flow velocity range based on the y axis flow line Result 25 A or 32 A Pipe spec Remark If select 32 A 1 High material cost 2 Difficult to make layout If select 20 A 1 High Pressure drop by high velocity 2 Noise Pipe dia Velocity Water flow 2 Method by Pressure drop 40 kPa m 100 kPa m Pipe diameter ˠ Water velocity Pressure drop Water flow rate Ex 16 kW Therma V Rated water flow...

Page 36: ...ater quality to verify the following Also check pH TDS Total dissolved Solid and water quality by applying formula such as LSI Langelier saturation index 1 14 Preventing freezing and bursting Items to check Is there an appropriate measure to prevent freezing and bursting of flat heat exchanger in winter and is air vent valve installed on bent part of water pipings Use antifreeze solution or operat...

Page 37: ...is 3bar Release water with relief valve inside the product if pres sure is higher than 3bar Supply tap water until pressure is stabilized and maintained and start supplying tap water when pressure reaches minimum of 0 3bar Supply tap water Pressure gauge Field scope option Underfloor Pressure gauge inside product Pressure gauge inside piping 1 16 Check flush Items to check Is it flushed Result Pur...

Page 38: ...nufacturer of magnetic strainer Magnetic filter Filter Inlet Outlet Magnet Magnetic strainer 1 19 Check air vent valve Items to check Is air vent valve installed and open at the angled part of water piping Result Purpose Remove air from water piping Applicants AWHP SPLIT Monobloc Air vent valve is integrated in the product by default but additional ones may be needed if there are bent parts when p...

Page 39: ... DDC Controller Additional power Design Installation Scene Design Installation Scene Buffer tank Check compliance with installation checklist after installing the system and engage in pilot operation See if air vent is open first and engage in air fudge operation Will take 10 60 minutes depending on on site conditions Check if there is no noise from air getting released nor flow inside before enga...

Page 40: ...e 10 kΩ at 25 C unplugged for Remote room air sensor Resistance 5 kΩ at 25 C unplugged for all sen sors EXCEPT remote room air sensor Voltage 2 5 V DC at 25 C plugged for all sensors Refer resistance temper ature table to check in different temperature 2 Problem in refrigerant inlet side sensor 6 Problem in refrigerant outlet side sensor 8 Problem in water tank sensor 16 Problem in sensors 17 Prob...

Page 41: ...athers too much particles If so strainer should be cleaned Check if pressure gage indicates above 4 Bar Check if water pipe is getting closed due to stacked particles or lime 2 Although electric power supply is OK remote control ler displays informa tion the unit does not start working Water inlet temperature is too high If water inlet temperature is above 55 C unit does not operate in order to pr...

Page 42: ...ge Temp C Above 95 C Ref Shortage EEV clogging Pipe clogging Outdoor Discharge Superheat C Below 5 C Overcharging EEV malfunction Full open Cooling Mode Mode Item Unit R32 Cause Check Point Normal Condition Abnormal Condition Cooling Operation High Pressure kPa 1800 3600 Above 3800 Overcharging Outdoor Unit Fan lock Poor airflow in outdoor unit heat exchang er Check that the outdoor air temperatur...

Page 43: ...084 085 _COMPREHENSIVE APPLICATION AND INSTALLATION MANUAL LG Electronics Installation check list Configuration System Design Applications Introduction ...

Page 44: ...086 087 _COMPREHENSIVE APPLICATION AND INSTALLATION MANUAL LG Electronics Installation check list Configuration System Design Applications Introduction ...

Page 45: ... Appliance Air Solution Company Air Solution Division July 2018 LG Electronics Gasan A B D 56 Digital ro 10 gil Geumcheon gu Seoul Korea http partner lge com Publisher Issued date Adress Web All rights are reserved by LG Electronics Visual Elements Logo Life s Good Split ...

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