LG Therma V HM091MRS Installation Manual Download Page 165

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[EU Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared

Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands

[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu,

Changwon-si, Gyeongsangnam-do, KOREA

[U.K. Importer] LG Electronics U.K. Ltd Velocity 2, Brooklands Drive, Weybridge, KT13 0SL

Eco design requirement

• The information for Eco design is available on the following free access website.

https://www.lg.com/global/support/cedoc/cedoc

Summary of Contents for Therma V HM091MRS

Page 1: ...only Please retain this installation manual for future reference after reading it thoroughly Original instruction EU Representative LG Electronics Inc EU Representative LG Electronics European Shared Service Center B V Krijgsman 1 1186 DM Amstelveen The Netherlands Manufacturer LG ElectronicsInc Changwon 2nd factory 84 Wanam ro Seongsan gu Changwon si Gyeongsangnam do KOREA PORTUGUÊS MAGYAR БЪЛГАР...

Page 2: ... Pressure Drop 48 Performance curve 49 Water Quality 49 Frost protection 50 Water Volume and Expansion Vessel Pressure 51 ACCESSORIES INSTALLATION 51 Accessories supported by LG Electronics 52 Accessories supported by 3rd party Companies 53 Before Installation 53 Thermostat 56 2nd Circuit 59 3rd Party Boiler 60 3rd Party Controller 61 Meter Interface 62 Central Controller 63 Remote Controller 66 D...

Page 3: ...ater priority 124 DHW time setting 125 TH on off Variable heating air 126 TH on off Variable heating water 127 TH on off Variable cooling air 128 TH on off Variable cooling water 129 Heating temp setting 130 Cooling temp setting 131 Pump setting in heating 132 Pump setting in cooling 133 Forced operation 134 CN_CC 135 Pump Capacity 136 Seasonal auto temp 138 Modbus Address 139 CN_EXT 140 Anti free...

Page 4: ...e diagram parts and dimensions electrical wiring diagrams etc This chapter is important to understand Chapter 4 Installation about the unit Installation location constraints on installation site etc Electrical wiring at the unit System set up and configuration Information about water pump Chapter 5 Information about supported accessories Specification Constraints and wiring are described Before pu...

Page 5: ... read carefully This symbol indicates that a service personnel should be handling this equipment with reference to the Installation Manual WARNING This indicates that the failure to follow the instructions can cause serious injury or death CAUTION This indicates that the failure to follow the instructions can cause the minor injury or damage to the product This symbol is displayed to indicate matt...

Page 6: ...toxic product For installation always contact the dealer or an authorized Service Center There is risk of fire electric shock explosion or injury Do not install the unit on a defective installation stand It may cause injury accident or damage to the unit Be sure the installation area does not deteriorate with age If the base collapses the unit could fall with it causing property damage unit failur...

Page 7: ...with an industry recognized assessment specification Pipe work shall be protected from physical damage and shall not be installed in an unventilated space if that space is smaller than 1 The minimum floor area 49 4 m2 2 The maximum refrigerant charge amount 2 4 kg Do not use means to accelerate the defrosting process or to clean other than those recommended by the manufacturer Do not pierce or bur...

Page 8: ... and open a window for ventilation before turning the unit on There is risk of explosion or fire If strange sounds or smell or smoke comes from unit turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the unit from the window before the hurricane arrives There is risk of prope...

Page 9: ...nter There is risk of fire or electric shock Be cautious that water could not be poured to the unit directly There is risk of fire electric shock or unit damage Ventilate the unit from time to time when operating it together with a stove etc There is risk of fire or electric shock Turn the main power off when cleaning or maintaining the unit There is risk of electric shock Take care to ensure that...

Page 10: ... be re fabricated Be aware that refrigerants may not contain an odor Periodic more than once year cleaning of the dust or salt particles stuck on the heat exchangers by using water Keep any required ventilation openings clear of obstruction CAUTION Installation Always check for gas refrigerant leakage after installation or repair of unit Low refrigerant levels may cause failure of unit Keep level ...

Page 11: ...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 In order to avoid a hazard due to inadvertent resetting of the thermal cut out this appliance must not be supplied through an external switching device such as a timer or connected to a circuit...

Page 12: ...on please make it sure that all parts are found inside the product box INSTALLATION PART Item Image Installation Manual Outdoor Unit UN36A Chassis Product heating capacity 5 7 9 kW Outdoor Unit UN60A Chassis Product heating capacity 9 12 14 16 kW Remote Controller Remote Controller Cable Damper Drain Cap Drain Nipple ...

Page 13: ... heat pump S Silent Electrical ratings 6 50 Hz 220 240 V 8 50 Hz 380 415 V 3N Series Number Series Number Heating Capacity Ex 05 5 kW 07 7 kW 09 9 kW 12 12 kW 14 14 kW 16 16 kW Model Type W Inverter Heat Pump B AWHP Monobloc ZH Air to Water Heat Pump ZH B W 16 6 A 0 M AWHP Monobloc H Air to Water Heat Pump Electrical ratings 1 50 Hz 220 240 V 3 50 Hz 380 415 V 3N H M 16 1 MU3 3 Leaving Water Combi...

Page 14: ...sted under EN14511 water temperature 23 C 18 C at outdoor ambient temperature 35 C 24 C h All appliances were tested at atmospheric pressure Model Name Capacity kW Power Source Unit Chassis Phase Ø Capacity kW Heating1 Cooling2 UN36A 1 5 5 5 5 5 220 240 V 50 Hz 7 7 7 9 9 9 UN60A 1 9 9 9 12 12 12 14 14 14 16 16 16 3 12 12 12 380 415 V 3N 50 Hz 14 14 14 16 16 16 ...

Page 15: ... 1 inch 3 Strainer Filtering and stacking particles inside circulating water 4 Top cover 5 Control Box PCB and terminal blocks 6 Plate Heat Exchanger Heat exchanger between refrigerant and water 7 Water Pump Circulating the water 8 Pressure Gage Indicates circulating water pressure 9 Safety valve Open at water pressure 3 bar 10 compressor h The shape may differ depending on the model ...

Page 16: ...16 GENERAL INFORMATION ENGLISH UN60A 9 12 14 16 kW 3D View Side View h The shape may differ depending on the model ...

Page 17: ...de Panel 7 Signal A Network Kit cables 8 Signal B Network Kit cables 9 Signal C 10 Outdoor Entry Power Cable 11 Water Pump Circulating the water 12 Plate Heat Exchanger Heat exchanger between refrigerant and water 13 Pressure Gage Indicates circulating water pressure 14 Safety valve Open at Water pressure 3 bar 15 Heater Control Box Heater PCB and terminal blocks 16 Outdoor Control Box Outdoor PCB...

Page 18: ...nnection of field wiring 2 Main PCB The main PCB Printed Circuit Board controls the functioning of the unit UN36A 5 7 9 kW UN60A 9 12 14 16 kW h The shape may differ depending on the model Refer to Exploded View in SVC Manual Control box before structural change Until August 2020 Control box after structural change From September 2020 ...

Page 19: ...onnection of field wiring 2 Main PCB The main PCB Printed Circuit Board controls the functioning of the unit UN36A 5 7 9 kW h The shape may differ depending on the model Refer to Exploded View in SVC Manual Control box before structural change Until January 2021 Control box after structural change From February 2021 ...

Page 20: ...tton 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 When you turn ON OFF the Unit OK Operation display window On Off Button OK Button Back button Up Down Left Right Button ...

Page 21: ...iator R T Outdoor Indoor M F High Temperature Room Thermostat Field supply 2way valve Field supply By pass valve Field supply Low Temperature Magnetic Filter Mandatory Shut off valve M F Remote controller R NOTE Room thermostat Type of thermostat and specification should be complied with chapter 4 and chapter 7 of installation manual 2way valve It is important to install 2way valve to prevent dew ...

Page 22: ...2way valve Field supply 3way valve Field supply By pass valve Field supply Low Temperature Shut off valve Magnetic Filter Mandatory M F Remote controller R NOTE DHW tank It should be equipped with internal electric heater to generate sufficient heat energy in very cold season DHW Domestic Hot Water 3way valve Type of 3way valve and specification should be complied with chapter 4 and chapter 7 of i...

Page 23: ...er Pump Maximum power consumption of pump should be less than 0 25 kW Solar heat source Floor heating loop Fan coil unit DHW tank Hot water City water Radiator M F R T Outdoor Indoor High Temperature Room Thermostat Field supply 2way valve Field supply 3way valve Field supply By pass valve Field supply Low Temperature Shut off valve Pump Field supply Magnetic Filter Mandatory M F Remote controller...

Page 24: ... By pass valve Field supply Low Temperature Shut off valve Magnetic Filter Mandatory Air vent Field supply M F Pressure Regulation valve Field supply 3way valve Field supply Pump Field supply Mix Kit Field supply NOTE Mix Kit You can install it when you want to set the temperature of two rooms individually When heating Main Zone can not be higher than Add Zone When cooling Main Zone can not be low...

Page 25: ...lve and specification should be complied with chapter 4 and chapter 7 of installation manual Floor heating loop 3 Way V V direction Boiler On Ơ Boiler Off ȯ Boiler Floor heating loop Floor heating loop M F Buffer Tank R T Outdoor Indoor High Temperature Room Thermostat Field supply 2way valve Field supply By pass valve Field supply Low Temperature Shut off valve Magnetic Filter Mandatory Air vent ...

Page 26: ...eating loop M F Buffer Tank High Temperature Room Thermostat Field supply By pass valve Field supply Low Temperature Magnetic Filter Mandatory Shut off valve M F Remote controller R 3way valve Field supply NOTE Backup heater Accessory You can retain sufficient capacity even though ambient temperature will be decreased in winter ...

Page 27: ...eating IHEX Water Out Water In Backup Heater S13 Accessory S2 S6 S5 S7 S10 S3 S1 S9 S12 S11 S4 S8 Inv Comp UN60A 12 14 16 kW Water Side Refrigerant Side Inside of Monobloc Product Inv Comp PHE EEV1 EEV3 Inj EEV EEV2 IHEX Cooling Heating Backup Heater S13 Accessory S2 S6 S5 S7 S10 S3 S1 S9 S12 S11 S4 S8 Accumulator High Pressure Sensor Muffler Expansion Tank Relief valve Pressure Gage Air Vent W Pu...

Page 28: ...ature sensor CN_VI_OUT S9 PHEX gas temp sensor CN_PIPE_OUT S10 PHEX liquid temp sensor CN_PIPE_IN Water Side S11 Entering water temperature sensor CN_TH3 S12 Leaving water temperature sensor S13 Electric backup heater outlet Accessory kit S9 S10 S5 Description is expressed based on Cooling mode Water Side Refrigerant Side Inside of Monobloc Product Inv Comp PHE EEV1 EEV3 Inj EEV Cooling Heating Ba...

Page 29: ...adiator DHW Tank is Installed DHW tank is necessary Solar thermal system is connected Solar thermal kit is necessary M F Magnetic Filter Mandatory Indoor Unit Hydro Kit EXP TANK W PUMP_1 W PUMP_2 B HT 3WAY V V_2 3WAY V V_1 F S 2WAY V V_1 SOLAR THERMAL SYSTEM Solor Panel Remote Room Temp Sensor S14 S9 S12 S15 S16 S11 S10 Solar Thermal Componets ...

Page 30: ...ately Generating and storing DHW by AWHP or built in electric heater B HT Booster heater in DHW tank CN_B HEAT A 3rd party accessory and Field installation usually built in at W TANK Supplying additional water heating capacity 3WAY V V_1 Flow control for water which is leaving from unit Flow direction switching between underfloor and water tank CN_3WAY A 3rd party accessory and Field installation ...

Page 31: ... Attach the ropes to the unit at an angle Ⓐ of 40 or less Use only accessories and parts which are of the designated specification when installing Forklift trucks are not available without a palette Be careful not to damage the product when moving the forklift Sub line 40º or less Air outlet grille Intake hole Corner Handle Forklift Always hold the unit by the corners as holding it by the side int...

Page 32: ...f snow accumulation Please secure the space to Maintain the shut off valve and strainer More than 300 Fence or obstacles More than 700 More than 600 Minimum 300 Awning Awning Awning Unit mm 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...

Page 33: ...dbreak Select a well drained place If you can t meet above guide line in the seaside installation please contact your supplier for the additional anticorrosion treatment Periodic more than once year cleaning of the dust or salt particles stuck on the heat exchanger by using water Seasonal Wind and Cautions in Winter Sufficient measures are required in a snow area or severe cold area in winter so t...

Page 34: ...eparate pedestal with enough height to install the drain nipple Unit mm Foundation bolt executing method 200 Nut 75 75 200 Spring washer Frame Anti vibration materials Six bolt are required 3 thread ridges H Beam Concrete base 100 620 293 361 WARNING Be sure to remove the Pallet Wood Support of the bottom side of the unit Base Pan before fixing the bolt It may cause the unstable state of the unit ...

Page 35: ...rk deficiency it may cause an electric shock or fire CAUTION Be sure to correct the unit to earth Do not connect earth line to any gas pipe liquid pipe lightening rod or telephone earth line If earth is incomplete it may cause an electric shock CAUTION This product have reversed phase protection detector that only works when the power is turned on If there exists black out or the power goes on and...

Page 36: ...s may only be used if their length does not exceed 2 m between the point where the cord or cord guard enters the appliance and the entry to the plug b Cords having the cross sectional areas indicated in the parentheses may be used for portable appliances if their length does not exceed 2 m CAUTION GN YL 20mm 35 5mm 10 3 mm For the 1 Phase 20mm GN YL 35 5mm 10 3 mm For the 3 Phase Model name Maximu...

Page 37: ...ire and connect firmly then secure to prevent outside pressure being exerted on the terminal block Use an appropriate screwdriver for tightening the terminal screws A screwdriver with a small head will strip the head and make proper tightening impossible Over tightening the terminal screws may break them Round pressure terminal Power wire Connect same thickness wiring to both sides It is forbidden...

Page 38: ...that the equipment is connected only to a supply with respectively Ssc greater than or equal to the minimum Ssc value 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 b...

Page 39: ...d by authorized personnel Only Select a circuit breaker suitable for the current specification 1 Maximum running current is the maximum current value maintained during the operation of the unit 2 Current Max is the maximum current value when a compressor of unit is off Unit Backup Heater Live Signal for Backup Heater A B Live Signal for DHW Tank kit CB CB DHW Tank kit Switch Box Power source Senso...

Page 40: ...n Check these screws and make it sure if they are all fastened tightly If not tightened burn out of the wire can be occurred Check the specification of power source such as phase voltage frequency etc Confirm that electrical capacity is sufficient Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate Confirm that the cable thickness i...

Page 41: ...s or cord clamps to prevent unintended move of power cable Step 4 Reassemble the side panel to the unit by fastening screws Failure to do these instruction can result in fire electric shock or death Make sure the power cable do not touch to copper tube Make sure to fix cord clamp firmly to sustain the connection of terminal Make sure to connect unit power heater power separately UNIT POWER CODE CL...

Page 42: ...r 3rd PARTY CONTROLLER Terminal Block 4 Accessory Terminal Block 2 Terminal Block 1 Terminal Block 3 Terminal Block 2 Terminal Block 3 Terminal Block 4 Turn on or off backup heater Connection for thermostat 230 V AC Supporting type Heating only or Heating Cooling HEATER A HEATER B THERMOSTAT Default 230 V AC L N L N L N L1 L2 21 22 23 24 25 26 27 28 29 30 Connection for 3rd PARTY CONTROLLER Openin...

Page 43: ...itch or electrical outlet to disconnect each of unit separately from the power supply WARNING Follow ordinance of your governmental organization for technical standard related to electrical equipment wiring regulations and guidance of each electric power company Make sure to use specified wires for connections so that no external force is imparted to terminal connections If connections are not fix...

Page 44: ...0 bar and water inside the unit will be discharged to drain hose Pipe fittings e g L shape elbow T shape tee diameter reducer etc should be tightened strongly to be free from water leakage Connected sections should be leakage proof treatment by applying tefron tape rubber bushing sealant solution etc Appropriate tools and tooling methods should be applied to prevent mechanical breakage of the conn...

Page 45: ...f the unit Water condensation on the floor While cooling operation it is very important to keep leaving water temperature higher than 16 C Otherwise dew condensation can be occurred on the floor If floor is in humid environment do not set leaving water temperature below 18 C Water condensation on the radiator While cooling operation cold water may not flow to the radiator If cold water enters to t...

Page 46: ...s exist inside the water circuit then performance degrade noise at the water pipe mechanical damage at the surface of electric heater coil Step 4 Stop water supplying when the pressure gage located in front of the control panel indicates 2 0 bar Step 5 Close drain valve and fill valve Then wait for 20 30 seconds to observe water pressure being stabilized Step 6 If following conditions are satisfac...

Page 47: ...kW Rated flow rate LPM m3 h Pump Head m At rated flow rate Product pressure drop m Plate heat exchanger Serviceable Head m 16 46 0 2 8 9 0 1 4 7 6 14 40 25 2 4 9 3 1 1 8 2 12 34 5 2 1 9 8 0 8 9 0 9 25 87 1 5 6 1 0 4 5 7 7 20 12 1 2 7 3 0 3 7 0 5 14 37 0 9 7 5 0 2 7 3 Water pump Capacity The water pump us variable type which is capable to change flow rate so it may be required to change default wat...

Page 48: ...re pressure 2 0 bar and liquid temperature 20 C WARNING Selecting a water flowrate outside the curves can cause damage to or malfunction of the unit Performance curve MGQ62321901 UPML GEO 20 105 CHBL UN60A 12 14 16 kW MGQ62321902 UPM3K GEO 20 75 CHBL UN36A 5 7 9 kW UN60A 9 kW ...

Page 49: ...e AWHP unit And add six liters to this total volume to allow for the water contained in AWHP unit Antifreeze type Antifreeze mixing ratio 0 C 5 C 10 C 15 C 20 C 25 C Ethylene glycol 0 12 20 30 Propylene glycol 0 17 25 33 Methanol 0 6 12 16 24 30 CAUTION Use only one of the above antifreeze If a antifreeze is used pressure drop and capability degradation of the system can be occurred If one of anti...

Page 50: ...Pre pressure in Expansion vessel bar 20 60 100 140 180 220 260 300 340 2 4 2 1 1 7 1 4 1 0 0 7 0 3 Adjusting pre pressure of expansion vessel is as following Step 1 Refer Volume Height table If installation scene is belong to Case A go to Step 2 Otherwise if it is Case B do nothing pre pressure adjustment is not required Otherwise if it is Case C go to Step 3 Step 2 Adjust pre pressure by followin...

Page 51: ...To receive on off external signal PDRYCB000 Dry Contact For Thermostat PDRYCB300 Solar thermal Kit To operate with solar heating system PHLLA Limit temperature 96 C Meter Interface To measure production consumption power PENKTH000 Central Controller Multiple installed products into one central control Backup heater To supplement insufficient capacity HA031M E1 HA061M E1 HA063M E1 Wi Fi Modem To en...

Page 52: ...V AC with Mode selection switch 3way valve and actuator A To control water flow for hot water heating or floor heating To control water flow when installing 3rd party boiler B To control close open mode of solar circuit 3 wire SPDT Single Pole Double Throw type 230 V AC 2way valve and actuator To control water flow for Fan Coil Unit To serve as 3way valve when installing backup heater 2 wire SPST ...

Page 53: ...tect compressor In that case mode change can takes time more than user s expectation Please read thermostat manual carefully if the unit does not response quickly Setting temperature range by thermostat can be different with that of the unit The heating or cooling set temperature should be chosen within the setting temperature range of the unit It is highly recommended that the thermostat should b...

Page 54: ...ng signal is permitted 1 There is no electric circuit inside the thermostat and electric power supply to the thermostat is not required 2 Electric circuit such as display LED buzzer etc is included in the thermostat and electric power supply is required 3 Thermostat generates Heating ON or Heating OFF signal according to user s heating target temperature 4 hermostat generates both Heating ON or He...

Page 55: ...on electric type thermostat Never connect external electric loads such as valves fan coil units etc If connected Main PCB Heater can be seriously damaged WARNING Mechanical type thermostat Do not connect wire N as mechanical type thermostat does not require electric power supply CAUTION Do not connect external electric loads Wire L and N should be used only for operation Electric type thermostat N...

Page 56: ...Mix Kit The mix kit must be installed in the main zone Main Zone zone where the water temperature is lowest when heating Add Zone The other zone Install Guide 2nd Circuit Heating h To use a floor combination during cooling operation the flow through the floor of the flow must be blocked by the 2 way valve Install Guide 2nd Circuit Cooling Main Zone Add Zone Floor 35 C Convector FCU 45 C Radiator 4...

Page 57: ...lve L2 Live signal for Normal Open type from PCB to mixing valve N1 Neutral signal from PCB to mixing valve Closed NOT Mixed CN_MIX_OUT Indoor PCB Floor heating loop Mix 2nd circuit temp sensor Mix Kit Room B Additional zone High Temp Room A Main zone Low Temp Floor heating loop Radiator Radiator Buffer Tank Step 3 Insert the temperature sensor to CN_MIX_OUT Brown of the main PCB as shown below Th...

Page 58: ... Follow below procedures step 1 step 4 Step 1 Install sensor connector to outlet pipe of mix kit water pump Welding must be performed to connect the sensor connector to the pipe Step 2 Check if the power of the unit is turned off Step 3 Fasten the sensor connector to the sensor holder as shown in the figure below Step 4 Insert harness into PCB CN_TH4 fully and fix the thermal sensor into tube conn...

Page 59: ... comparing the outside temperature and the set temperature How to install 3rd party boiler Follow below procedures step 1 step 3 Step 1 Check if the power of the unit is turned off Step 2 Disassemble front panels and Distinguish terminal block in Indoor PCB Step 3 Connect Power cable to terminal block TB_BOILER fully Indoor PCB 3rd party boiler Voltage free TB_BOILER ...

Page 60: ...4 1 L 2 N 1 L 2 N 11 12 3rd PARTY CONTROLLER DC 5 V 3rd PARTY CONTROOLER or METER INTERFACE LG CN_COM Indoor PCB Step 1 Check if the power of the unit is turned off Step 2 Disassemble front panels and distinguish control box Indoor of the unit Step 3 Check if the harness White is inserted fully to the indoor unit PCB CN_COM Step 4 Connect the 3rd party controller to terminal block 2 11 12 complete...

Page 61: ...2 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 How to install Meter Interface Parts of Meter interface CN_COM A B 11 12 11 Black 12 White 3rd PARTY CONTROLLER Meter interface Indo...

Page 62: ...te Operation Stop Desired temperature Hot water operation stop Warm water temperature Full lock Etc How to Installation PI485 Fix the PI485 PCB as shown in below images For detailed installation method refer to PI485 Installation Manual UN36A 5 7 9 kW UN60A 9 12 14 16 kW For detailed installation instructions refer to the manual included in the accessories The shape may differ depending on the mod...

Page 63: ...nment Installation direction Rear entry top side right side When you install the remote controller cable at the top side and right side remove the remote controller cable guide hole before the installation Use a long nose pliers to remove the guide hole After removing the hole trim the cut surface neatly After fixing the remote controller top side on the installation plate attached to the wall as ...

Page 64: ...tuation Do not install the cable over 50 m It may cause communication issues If the distance between the wired remote controller and the unit is 10 m or more 10 m extension cable model name PZCWRC1 During the wired remote controller installation do not bury it in the wall It may cause temperature sensor failure Do not install the cable over 50 m It may cause communication defect When you install t...

Page 65: ...onnectors on the other side and then extend and connect the cables Extension cable specification 24 26 AWG CAUTION For the External device connection use the cable insulated with sheath for the extension connection Before combining with the installation plate arrange the cables to avoid interference with the internal parts RMC DO Port 2 GND_Black 3 DC 12 V_Red Field connection 30 cm Output specifi...

Page 66: ... recommend to wash out inside of the DHW water tank after installation It ensures generating clean hot water Near the DHW water tank there should be water supply and water drain to easy access and maintenance Set the maximum value of the temperature control device of DHW tank General Information supports following 3way valve 1 SPDT Single Pole Double Throw Three wires consist of Live1 for selectin...

Page 67: ...circulation pump should turn on and turn off is required The operating duration time of the recirculation pump is calculated as follow Duration time minute k x V x R k 1 2 1 5 is recommended If distance between pump and tank is far then choose high number V Volume of DHW water tank liter R Water flow rate of pump liter per minute which is determined by pump performance curve The pump operating sta...

Page 68: ...tem L Live signal from PCB to Heater N Neutral signal from PCB to Heater Adjusting thermostat temperature To guarantee proper operation it is recommended to set temperature of thermostat to maximum temperature symbol at the picture 1Ø Electric Heater Model and 3Ø Electric Heater Model are set by same method as below WARNING Wire specification Cross sectional area of the wire should be 6 mm2 L N A ...

Page 69: ...fective you can purchase it separately Model name PHRSTA0 Follow below procedures step 1 step 4 Step 1 Uncover DHW tank kit and locate it on the wall Step 2 Connect Harness Violet of Main PCB assembly TB1 6 7 to CN_B_Heat_A of the Main PCB like following fig 1 Step 3 Insert DHW tank sensor to CN_TH4 Red of the Main PCB refer as below Step 4 Connect power supply to the DHW tank kit as shown fig 1 h...

Page 70: ... Out Water In 3way valve Field Supply Pump Field Supply Tube connecter Water Pipe Tube connector Solar thermal sensor CN_TH4 Indoor PCB Holder sensor Tube Connector Solar Thermal Sensor 12 m 1 EA Follow below procedures step 1 step 4 Step 1 Install tube connector it is necessary to reduce or extend diameter of pipe the pipe and solar thermal kit Step 2 Check if the power of the unit is turned off ...

Page 71: ...l sources How to install dry contact Parts of Dry contact Follow below procedures step 1 step 4 Step 1 Check if the power of the unit is turned off Step 2 Disassemble front panels and distinguish terminal block in Indoor PCB Step 3 Connect cable to the unit PCB CN_CC fully Step 4 Then Insert harness to the dry contact PCB CN_INDOOR firmly as shown below CN_INDOOR Dry contact CN_CC Indoor PCB Dry C...

Page 72: ...COMM FAN HEAT LOW MIDDLE HIGH COOL For input contact voltage DC 12 V 24 V Notes Do not input the voltage signal in NON VOLT setting mode Otherwise it will cause serious damage Thermostat LG does not supply this section Field supply COMM Themal Operation COMM FAN HEAT LOW MIDDLE HIGH COOL For input contact closure only No power input Setting of Contact Signal Input ...

Page 73: ... Emergency stop only for indoor unit 4 Reattachment absence 5 Emergency stop of all indoor units It can be set only when indoor unit has emergency stop function CN_EXT Indoor PCB Adapter Cable Indoor Unit Supplied Part X 0 5 m Max 10 m X Relay Circuit Power supply of relay SW PCB Field Installation Part Installation example 2 SW Single pole switch Select a part with contacts for extremely low ampe...

Page 74: ...he Connection wire does not matter if you change the color of the wire because of nonpolar Remote Temperature Sensor Remote temperature sensor can be installed any place a user wants to detect the temperature Installation condition Role and constraint while installation of remote air temperature sensor is very similar to that of thermostat Distance between the unit and the remote air temperature s...

Page 75: ...e cooling heating devices do not affect the remote sensor Choose the place where the outlet of the cooling fan do not affect the remote sensor Choose the place where the remote sensor isn t affected when door is open For more information about installing Remote Temperature Sensor Please refer installation manual provided with Remote Temperature Sensor For system set up please read chapter 8 Especi...

Page 76: ...e front panels and distinguish control box Indoor of the unit Step 3 Check if the harness Black is inserted fully to the indoor unit PCB CN_W_PUMP_B Step 4 Connect the external pump to terminal block 1 4 5 h It is possible to un use solar pump depending on installation environment L N BR BL 4 5 WATER PUMP B CN_W_PUMP_B Solar pump AC 230 V Indoor PCB h The terminal block connection number may diffe...

Page 77: ... pump is installed with buffer tank to retain sufficient capacity How to install external pump Follow below procedures step 1 step 3 Step 1 Check if the power of the unit is turned off Step 2 Disassemble front panels and distinguish terminal block in Indoor PCB Step 3 Connect signal cable to terminal block TB_W_PUMP_C fully Indoor PCB External pump Voltage free Power TB_W_PUMP_C ...

Page 78: ...edures step 1 step 5 Step 1 Check if the power of the unit is turned off Step 2 Disassemble front panels and distinguish control box Indoor of the unit Step 3 Connect the USB cable to the indoor unit PCB CN_WF Blue until it clicks into place Step 4 Connect the Wi Fi modem to the USB cable fully Step 5 Refer to the image below to install the Wi Fi modem in the marked position USB Cable CN_WF Indoor...

Page 79: ...Fixed Maintain operation status Fixed Maintain operation status Fixed 3 Operation On Recommend High Increase 2 C from target temperature Fixed Maintain operation Status Fixed Increase 5 C from target temperature Fixed 4 Operation On Recommend Very High Maintain operation status Fixed Maintain operation status Fixed DHW Target 80 C Fixed 5 Operation On Commend Very High Increase from target tempera...

Page 80: ...f the control pane different Energy states can be selected for Signals 0 1 and 1 1 0 0 is always linked with ES2 Normal operation and 1 0 is always linked with ES1 Operation off Utility lock How to set Digital input signal Follow below procedures step 1 step 3 Step 1 Check if the power of the unit is turned off Step 2 Disassemble front panels and distinguish terminal block in Indoor PCB Step 3 Con...

Page 81: ... wire1 Supported Operating Mode Power Type 2way valve NO NC N 2WAY VALVE A L1 L2 N 18 19 20 WARNING Wiring Normal Open type should be connected to wire NO and wire N for valve opening in cooling mode Normal closed type should be connected to wire NC and wire N for valve closing in cooling mode CAUTION Dew Condensation Wrong wiring can yield dew condensation on the floor If radiator is connected at...

Page 82: ... procedures Step 1 Step 2 Step 1 Uncover front cover of the unit Step 2 Find terminal block and connect wire as below W Live signal Water tank heating from PCB to 3way valve U Live signal Under floor heating from PCB to 3way valve N Neutral signal from PCB to 3way valve Type Power Operating Mode Supported SPDT 3 wire1 220 240 V Selecting Flow A2 between Flow A and Flow B Yes Selecting Flow B3 betw...

Page 83: ...cedures Step 1 Step 2 Step 1 Uncover front cover of the unit Step 2 Find terminal block and connect wire as below W Live signal close solar circuit from PCB to 3way valve U Live signal open solar circuit from PCB to 3way valve N Neutral signal from PCB to 3way valve Type Power Operating Mode Supported SPDT 3 wire1 220 240 V Selecting Flow A2 between Flow A and Flow B Yes Selecting Flow B3 between ...

Page 84: ...ctric Heater should be installed with enough space for installation and service Water pipes and connections should be cleaned using water Methods to prevent leakage in plumbing connections must be applied Heater must not be impacted Do not let dirty particle be dropped inside tank to avoid possibility of degrade After installation make it sure that no leakage is appeared in the connection WARNING ...

Page 85: ...GLISH Terminal Block Information Symbols used below pictures are as follows L L1 L2 Live 220 240 V N Neutral 220 240 V BR Brown WH White BL Blue BK Black Terminal Block 1 Terminal Block 2 Terminal Block 1 Terminal Block 2 3 kW 6 kW ...

Page 86: ... injury AC 220 240 V signal For more information about installing Electric Heater Please refer installation Manual provided with Electric Heater 1 L 2 N 3 4 5 6 Terminal Block 2 In Backup Heater Terminal Block 3 In Unit HEATER A HEATER B 3 kW 23 BR L 24 BL N 25 BR L 26 BL N L Power Supply 50 Hz 220 240 V ELECTRIC HEATER A SIGNAL N A A1 A A2 1 L 2 N 3 4 5 6 Terminal Block 2 In Backup Heater 6 kW L ...

Page 87: ... A bypass Electric power is supplied to wire NO and wire N When type of 2way valve is NC type 3way valve should select Flow B heating In Backup heater Electric power is supplied to wire NC and wire N 3way valve should be connected together with 2way valve in terminal block Keep the distance between 3way valve and Backup Heater more than 0 5m To prevent reverse flow It is important to use one way v...

Page 88: ... is not electronic noise may occur from the power source 5 The power cord specifications Check the power cord specifications Refer to Chapter 4 Connecting Cables 6 3Way Valve Water should flow from Water outlet of the unit to DHW tank Water inlet when DHW tank heating is selected To verify the flow direction Make sure that the water outlet temperature of the unit and water inlet temperature of DHW...

Page 89: ...operation or degrade of performance can be expected DIP Switch Setting General Information Indoor PCB CAUTION Turn off electric power supply before setting DIP switch Whenever adjusting DIP switch turn off electric power supply to avoid electric shock OFF ON SW1 1 2 3 4 OFF ON 1 2 3 4 OFF is selected ON is selected OFF ON SW2 1 2 3 4 5 6 7 8 SW3 1 2 3 4 1 2 3 4 1 2 3 4 5 6 7 8 ...

Page 90: ...Outdoor unit is installed Unit Outdoor unit DHW tank is installed Unit Outdoor unit DHW tank Solar thermal system is installed Full capacity is used Cycle 4 4 Heating Only Heating Cooling Selecting electric heater capacity Electric heater is not used 1Ø model Half capacity is used 3Ø model 1 3 capacity is used Thermostat installation information 8 8 Thermostat is NOT installed Thermostat is instal...

Page 91: ...s Slave 2 2 Common 3rd party SIEMENS 1 2 Description Setting Default Option Switch 3 Description Setting Default Description Description Setting Setting Default Default Remote Air Sensor ANTIFREEZE 1 1 Remote sensor is not installed Remote sensor is installed 2 2 Antifreezing solution not using mode Antifreezing solution using mode 1 2 ...

Page 92: ...on Input current value can be limited by DIP Switch operation h Only DIP Switch no 2 and no 3 has a function Others have no function h When setting the limited low noise mode Mode can be exited to secure capacity after operating for a certain time NOTE Model Name Max Mode Running Current A Peak Control Mode Running Current A Chassis Phase Ø Capacity kW Mode UN36A 1 5 7 9 Cooling 23 17 Heating 23 1...

Page 93: ... problems The outdoor unit is operating under emergency mode operation condition which is configured by DIP switch No 4 of the unit PCB Heavy trouble a problem is found inside the outdoor unit As the outdoor unit has problem the emergency mode operation is performed by electric heater located in the unit Option Trouble a problem is found for option operation such as water tank heating In this trou...

Page 94: ...ency operation mode When DHW is not warming up while emergency operation please check if DHW sensor and related wiring are all Ok Emergency operation is not automatically restarted after main electricity power is reset In normal condition the product operating information is restored and automatically restarted after main electricity power is reset But in emergency operation automatic re start is ...

Page 95: ... controller s open source license Service setting You can set the product service functions Some functions may not be displayed operated in some product types 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 mov...

Page 96: ... 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 While edit button is selected press OK button to move to the edit screen change it and press OK button to change the service contact point OK OK ...

Page 97: ...d 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 Ex If the unit capacity is 18 kBtu it is displayed as 5 kWh OK ...

Page 98: ...ERVICE SETTING ENGLISH RMC Version lnformation 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 OK ...

Page 99: ...ICE SETTING ENGLISH 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 OK ...

Page 100: ...sion 1 00 1 a In the above case the password is 1001 CAUTION The installer setting mode is the mode to set the remote controller s detail function If the installer setting mode is incorrectly set it may cause product failure user s injury or property damage It must be set by the installation specialist with the installation license and if it is installed or changed without installation license all...

Page 101: ... Adjusting range of Setting Heating Flow Temperature in heating mode DHW Set Temp Setting DHW set temperature Screed drying Setting for using Step 1 or 2 capacity of electric Heater on temperature Setting outdoor air temperature where half capacity of electric heater starts operation Water supply off temp during cooling Determine leaving water temperature when the unit is turned off This function ...

Page 102: ...oduct Modbus address setting function is available from indoor unit CN_EXT Function to set external input and output control according to DI DO set by customer using dry contact port of indoor unit Determine the use of the contact port CN_EXT mounted on the indoor unit PCB Anti freezing Temperature This function prevents the product from freezing Add Zone Install additional valve in product to con...

Page 103: ...LISH 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 OK ...

Page 104: ...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 Value Water Air Air Water OK Air temperature as setting temperature is ONLY available when Remote Air Sensor Connection is enabled and Remote Air Sensor Connection is set as 02 NOTE ...

Page 105: ...ing values using left right button Value Auto manual 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 are interfacing with the air conditioner Added system functionality by using external inputs dry contacts and wet contacts NOTE ...

Page 106: ...rol address of the unit In the installer setting list select Central Control Address category and press OK button to move to the detail screen OK Enter address code as hexadecimal value Front Central Control Gr No Back side Central control indoor the number NOTE This function is not available for monobloc NOTE ...

Page 107: ...n 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 OK ...

Page 108: ...installer setting list select Air cooling set temp category and press OK button to move to the detail screen Upper lower limit default value is in C Value Default Range Max 30 30 24 Min 18 22 16 OK Only available when remote air temperature sensor is connected Accessory PQRSTA0 should be installed Also Remote air sensor connection should be set properly NOTE ...

Page 109: ... Value Default Range Max 24 27 22 Min 18 20 5 OK Water condensation on the floor While cooling operation it is very important to keep leaving water temperature higher than 16 C Otherwise dew condensation can be occurred on the floor If floor is in humid environment do not set leaving water temperature below 18 C NOTE Water condensation on the radiator While cooling operation cold water may not flo...

Page 110: ...staller setting list select Air heating set temp category and press OK button to move to the detail screen Upper lower limit default value is in C Value Default Range Max 30 30 24 Min 16 22 16 CAUTION Only available when remote air temperature sensor is connected Accessory PQRSTA0 should be installed Also Remote air sensor connection should be set properly OK ...

Page 111: ...as setting temperature In the installer setting list select Water heating set temp category and press OK button to move to the detail screen Upper lower limit default value is in C Value Default Range Max 65 65 35 Min 15 34 15 OK When the E heater is not used the minimum temperature of the water temperature can be set from 34 C to 20 C NOTE ...

Page 112: ...etting 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 Upper lower limit default value is in C Value Range Max 80 50 Min 40 30 OK ...

Page 113: ...the bottom of the display is displayed Setting value Start up step 1 11 Maximum temperature 35 C 55 C Step 8 Holding time 1 days 30 days Function operation It is performed by the following procedure from the selected starting step After all steps are completed turn off the cement curing operation If the upper limit setting value of the heating LW temperature is 55 C or lower it is set to 55 C forc...

Page 114: ...reset to the error occurrence state it is compensated in the unit of one day Upon releasing after an error Screed drying operation may take up to 1 minute of waiting time after boot up The Screed drying operation status is judged as 1 minute cycle During Screed drying operation installer function Screed drying operation is selectable During Screed drying operation starting operation low noise mode...

Page 115: ...ions 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 Upper lower limit default value is in C Default Range Split 5 18 15 Mono 5 18 25 OK ...

Page 116: ...er temperature or room air temperature is much belower than target leaving water temperature or target room air temperature Using Full capacity of electric heater when DIP Switch No 6 and 7 is set as OFF OFF Example If Heater on temperature is set as 1 and DIP switch No 6 and 7 is set as OFF OFF then full capacity of electric heater will start operation when outdoor air temperature is below 1 C an...

Page 117: ...unction 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 Function Value Default Setting Rang cooling water temperature Water supply off temperature 16 25 16 FCU Use not use use Use Not Use OK ...

Page 118: ... when the leaving water temperature is below 10 C Example If Stop temp is set as 10 and FCU is Not use and actually FCU is installed in the water loop the Stop temp is not used and the unit do NOT stop operation in cooling mode when the leaving water temperature is below 10 C CAUTION FCU Installation If FCU is used related 2way valve should be installed and connected to the unit PCB If FCU is set ...

Page 119: ...the date when the disinfection mode is running Start time Determining the time when the disinfection mode is running Max temp Target temperature of disinfection mode Duration time Duration of disinfection mode Time Start time Max temp Duration time Water temperature Inside DHW Temperature profile of Disinfection operation DHW heating should be enable If Disinfection active is set as Not use that i...

Page 120: ...0 INSTALLER SETTING ENGLISH Tank setting 1 In the installer setting list select tank setting 1 category and press OK button to move to the detail screen Value Range Max outdoor temp 58 40 Min temp 30 1 OK ...

Page 121: ...LLER SETTING ENGLISH Tank setting 2 In the installer setting list select tank setting 2 category and press OK button to move to the detail screen Value Range Hysteresis 4 2 Heating priority Floor heating DHW OK ...

Page 122: ...r temperature is above 73 C The water tank heater will be turned on when the water temperature is below 70 C Example If Heating priority is set as DHW that means heating priority is on DHW heating DHW is heated by AWHP compressor cycle and water heater In this case the under floor can not be heated while DHW heating On the other hand if the Heating priority is set as Floor heating that means heati...

Page 123: ...ectric heater and DHW tank heater are on and off according to control logic If Heater priority is set as Boost heater only ON then electric heater is never turned on and only DHW tank heater is on and off according to control logic In the installer setting list heater priority category and press OK button to move to the detail screen Value Boost heater only ON Main Boost heater ON OK ...

Page 124: ...e duration defines how long time DHW tank heating can be stopped It is also regarded as time gap between DHW tank heating cycle Boost heater delay time This time duration defines how long time DHW tank heater will not be turned on in DHW heating operation Example of timing chart DHW tank heating is enabled DHW tank heater is enabled DHW tank heating operation DHW tank heater operation 1 active 0 n...

Page 125: ...the heating air temperature Thermal On Off temperature according to the field environment in preparation for heating or heating claim You can set the following setting values using left right button Value Description TH On TH Off Type0 0 5 C 1 5 C Type1 1 C 2 C Type2 2 C 3 C Type3 3 C 4 C ...

Page 126: ...t the heating water temperature Thermal On Off temperature according to the field environment in preparation for heating or heating claim You can set the following setting values using left right button Value Description TH On TH Off Type0 2 C 2 C Type1 3 C 3 C Type2 4 C 4 C Type3 1 C 1 C ...

Page 127: ... 1 C Type2 2 C 2 C Type3 3 C 3 C 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 preparation for cooling or cooling claim You can set the following setting values using left right button ...

Page 128: ...the cooling water temperature Thermal On Off temperature according to the field environment in preparation for cooling or cooling claim You can set the following setting values using left right button Value Description TH On TH Off Type0 0 5 C 0 5 C Type1 1 C 1 C Type2 2 C 2 C Type3 3 C 3 C ...

Page 129: ... leaving 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 Value Outlet Default Inlet ...

Page 130: ... leaving 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 Value Outlet Default Inlet ...

Page 131: ...g the water pump s rest time Installer setting function to set water pump operation delay time option in heating mode In the installer setting list select Pump setting in heating category and press OK button to move to the detail screen OK Type Time setting Operation continue On 1 Minute 60 minutes Off 1 Minute 60 minutes ...

Page 132: ...tting 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 operation delay time option in cooling mode In the installer setting list select Pump setting in cooling category and press OK button to move to the detail screen OK ...

Page 133: ...event pump failure and PHEX freezing Water pump off After 20 consecutive hours disable enable the logic that drives the water pump by itself In the installer setting list select Forced operation category and press OK button to move to the detail screen Type Use Not use Oper Cycle 20 minutes 60 minutes Oper Time 1 Minute 60 minutes OK ...

Page 134: ...escription 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 D C Not Installed Do not use install Dry Contact D C Installed Use install Dry Contact CN_CC is the device connected to the unit to recognize and control the external contact point NOTE ...

Page 135: ...acity category and press OK button to move to the detail screen T Control This function automatically adjusts the pump capacity during heating operation Automatically adjusts between the pump set volume and the minimum pump volume Minimum pump capacity will change from 40 Default to suit the installation environment OK Value Description 100 Default 10 100 Change unit 5 ...

Page 136: ...Outdoor4 Cool Out4 Cooling higher ambient temp 40 C Out4 Out3 1 Water1 Heat LW1 Heating higher water temp Use heater LW STD 15 65 C EW STD 15 55 C Not use heater LW STD 20 65 C EW STD 20 55 C 15 57 C 35 C LW1 LW2 Water 2 Heat LW2 Heating lower water temp 28 C LW2 LW1 Water3 Cool LW3 Cooling higher water temp Use FCU 5 C IDU LW STD 5 27 C EW STD 10 27 C Use FCU 6 C IDU LW STD 6 27 C EW STD 11 27 C ...

Page 137: ...cally This mode adds the cooling season function to the conventional weather dependent operation mode Auto Adjustable Target Temp Room Air Temp C Leaving Water Temp Outdoor Air Temp Heating Set point 1 30 20 57 39 Set point 5 20 10 Set point 2 19 16 38 20 Set point 6 5 5 Cooling Set point 3 30 24 25 17 Set point 7 10 18 Set point 4 23 18 16 6 Set point 8 22 30 Auto Adjustable Target Temperature Se...

Page 138: ...us 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 OK To use this function switch No 1 of option switch 1 must be turned ON NOTE ...

Page 139: ...l 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 Value Not use Simple Operation Simple Dry Contact Single emergency stop OK ...

Page 140: ...stbite from happening In the range of 25 to 5 degree celsius Change setting values using left right button To use this function the antifreeze short pin CN_FLOW2 Black of indoor PCB must be remove and switch No 2 in option SW 3 must be on NOTE Indoor PCB OFF ON 1 2 3 4 SW3 CN_FLOW2 Antifreeze short Pin 1 2 3 4 1 2 3 4 1 2 3 4 5 6 7 8 ...

Page 141: ...tivating this function It allows 2 zones Room1 Room2 temperature to be controlled separately In case of heating the temperature of Room1 can not be set higher than Room2 temperature In case of cooling the temperature of Room1 can not be set lower than Room2 temperature Setting range Add Zone 2nd Circuit function setting Use Not Use Value Closing Time 60 999 seconds Default 240 Hysteresis Thermal O...

Page 142: ...lect 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 The external pump operates only in the direction of water flow in the underfloor Value Not use Use Heating Cooling ...

Page 143: ...emperature external boiler operation temperature value installer setting turn off the indoor unit and operate the external boiler External boiler OFF condition If External air temperature external boiler operation temperature value installer setting Hysteresis installer setting turn off external boiler operation and operate indoor unit If the mode of this function is set to Manual you can set temp...

Page 144: ...a 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 Activating the modbus address option you choose one address B0 or B1 or don t use Then you set the port and specification in range of 0000 0 9999 9 pulse kW as shown in the figure below OK ...

Page 145: ...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 If the water pump has been off for 20 hours Water pump will operate for the set time OK Value Default Setting Range Prerun 1 min 1 10 min Overrun 10 min 1 10 min ...

Page 146: ...ion 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 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 NOTE ...

Page 147: ...that can be reached by solar thermal system Boost Heater Enable DHW tank heater can be used when operating the Solar Thermal system Disable DHW tank heater cannot be used when operating the Solar Thermal system Solar pump flush schedule It is the function to circulate the solar water pump intermittently for solar collector temperature detection when the solar water pump does not operate for a long...

Page 148: ... 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 OK OK 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 Value Input Signal Output state TB_SG1 TB_SG2 Default Range X 0 0 ES2 fixed X 1 0 ES1 fixed 0 1 0 1 ES3...

Page 149: ...move to the detail screen OK 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 temperature Hot water temperature Outdoor unit On Off Error code Number of Display Within 50 Save criteria ν ν Error occurred released ON OFF of outdoor unit operation...

Page 150: ...t 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 When you press initialization button a popup screen appears and when you press check button password initialization starts and the user password is changed to 0000 OK ...

Page 151: ...5 126 96 97 98 99 3 Minutes Delay Select Temperature Sensor Dry Contact Mode Central Control Address Pump test run Air cooling set temp Water cooling set temp Air heating set temp Water heating set temp DHW set temp Screed drying 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...

Page 152: ...ooling water Heating temp setting Cooling temp setting Pump setting in heating Pump setting in cooling Forced operation CN_CC Pump Capacity Seasonal auto temp Modbus Address CN_EXT Anti freezing Temperature Add Zone Use External Pump 3rd Party Boiler Meter Interface Pump Prerun Overrun Solar Thermal System Energy state Data logging Password Initialization Overview settings ...

Page 153: ...ter charging air should be taken out through the hole of the air purge If water does not splash out when the tip at the top of the hole is pressed then air purging is not completed yet If well purged the water will splash out like fountain Be careful when testing air purge Splashed water may make your dress wet Two shut off valves located at the end of water inlet pipe and water outlet pipe of the...

Page 154: ...rainer Water filter Safety valve Terminal block wiring 1 2 3 4 Starting Operation Check before Starting Operation 1 Check to see whether there is any refrigerant leakage and check whether the power or transmission cable is connected properly 2 Confirm that 500 V megger shows 2 0 MΩ or more between power supply terminal block and ground Do not operate in the case of 2 0 MΩ or less NOTE Never carry ...

Page 155: ...ct is below 70 dB The noise level can vary depending on the site The figures quoted are emission level and are not necessarily safe working levels Whilst there is a correlation between the emission and exposure levels this cannot be used reliably to determine whether or not further precautions are required Factor that influence the actual level of exposure of the workforce include the characterist...

Page 156: ...uum action when the leak of refrigerant Vacuum pump 0 5 1 HP Lo Hi Manifold valve Pressure gage Open Close SVC Port Manifold gage When selecting a vacuum you should select one which is capable of achieving 0 2 Torr of ultimate vacuum 0 Pa gage 1 atm 760 Torr 760 mmHg 1 013 25 hPa Unit Standard atmospheric pressure Perfect vacuum Gage Pressure Pa 0 1 033 Absolute Pressure kgf cm2 1 033 0 ...

Page 157: ...igerant 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 Refrigerant cylinder Refrigerant cylinder Refrigerant cylinder SVC Port Manifold gage ...

Page 158: ...connect them Step2 To drain the rest of the water out of the product open the cock of the drain valve counterclockwise After draining lock it in the opposite direction to the end CAUTION If the product is not used for a long period of time with remaining water there is a risk of freezing in winter Drain Valve Outlet Valve Inlet Valve Cock Step1 Step2 To use the product again you have to refill wat...

Page 159: ...ter inlet temperature is below 15 C in heating operation the unit does not operated for the sake of system protection Wait while unit warms up to 18 C the water inlet temperature If you are not using the back up heater accessory HA 1M E1 increase the water temperature with the external heat source heater boiler If the problem persists contact your dealer If you want to use the screed drying functi...

Page 160: ...B Heater PCB Heater fault Sensor fault Wire connection between remote controller and Main PCB assembly Heater should be tight Output voltage of PCB should be 12 V DC 5 Bad communication between Main PCB assembly Heater and Main PCB assembly Inverter of the unit The connector for transmission is disconnected The connecting wires are misconnected The communication line is broken Main PCB assembly In...

Page 161: ... over 100 A peak for 2 us 1 Overload operation Pipe clogging Covering EEV defect Ref overcharge 2 Compressor damage Insulation damage Motor damage 3 Input voltage abnormal L N 4 Power line assemble condition abnormal 5 PCB assembly 1 Damage input current sensing part 29 Inverter compressor over current HM 1M U 3 Inverter Compressor input current is 35 Apk HM 3M U 3 Inverter Compressor input curren...

Page 162: ...ion Error Checking the communication state between Main PCB and Inverter PCB Generation of noise source interfering with communication 54 Open and Reverse Phase Error Prevention of phase unbalance and prevention of reverse rotation of constant rate compressor Main power wiring fault 60 PCB Inverter Main EEPROM check sum error EEPROM Access error and Check SUM error 1 EEPROM contact defect wrong in...

Page 163: ...roundings 114 Problem in Vapor injection inlet temperature sensor Open Below 48 7 C Short Over 96 2 C Soldered poorly Internal circuit error 1 Bad connection of thermistor connector 2 Defect of thermistor connector Open Short 3 Defect of outdoor PCB Outdoor 115 Problem in Vapor injection outlet temperature sensor Open Below 48 7 C Short Over 96 2 C Soldered poorly Internal circuit error 1 Bad conn...

Page 164: ...164 ENGLISH ...

Page 165: ...lands Manufacturer LG Electronics Inc Changwon 2nd factory 84 Wanam ro Seongsan gu Changwon si Gyeongsangnam do KOREA U K Importer LG Electronics U K Ltd Velocity 2 Brooklands Drive Weybridge KT13 0SL Eco design requirement The information for Eco design is available on the following free access website https www lg com global support cedoc cedoc ...

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LG Therma V HM091MRS, Installation Manual

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