LG Hydro Kit Installation Manual Download Page 18

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Installation

Hydro Kit

1) Space Heating/Cooling

Installation

Installation scenes are presented for example.

Installer should optimize the installation scene according to the installation conditions and
local/national regulation.

i.e. Shut-off valves position for spare water pump and water pump service, Flexible joint
installation to prevent noise and vibration.

Field Supply

LG Supply

Drainage

Water Supply

FCU

(Cooling → Close)

PQRSTA0

Wired Remote

Controller

Wi-fi Module

(PWFMDD200)

Installation Scenes

Summary of Contents for Hydro Kit

Page 1: ...in this installation manual for future reference after reading it thoroughly 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 INSTALLATION MANUAL AIR TO WATER HEAT PUMP Hydro Kit Original ...

Page 2: ... Cables 34 Independent Power Module 36 ACCESSORIES INSTALLATION 36 Location of Accessories and External Parts Connection 38 Main Pump Connection 38 Water tank temperature sensor Connection 39 Thermostat 43 Remote Temperature Sensor 44 3Way Valve 46 2Way Valve 47 Dry Contact 49 External Controller 50 External pump 51 Wi fi Modem 52 Smart Grid 53 SYSTEM SET UP 53 DIP Switch Setting 56 Group Control ...

Page 3: ... instruction Safety Precautions Installation Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center There is risk of fire or electric shock Always ground the unit There is risk of fire or electric shock Install the pan...

Page 4: ...damage to the unit Use a vacuum pump or inert nitrogen gas when doing leakage test or purging air Do not compress air or oxygen and do not use flammable gases There is the risk of death injury fire or explosion Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules This equipment shall be provided with a supply conductor complying with the national reg...

Page 5: ...tric shock Do not open the front cover of the unit while operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or unit failure When the unit is soaked flooded or submerged contact an Authorized Service Center There is risk of fire or electric shock Be cautious that water could not be poured to the unit directly There is risk of f...

Page 6: ...s 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 There is risk of fire electric shock or damage to the plastic parts of the unit Do not step on or put anything on the unit There is risk of personal injury and failure of unit Use a firm stool or ladder when cleaning or maintaining the unit Be careful a...

Page 7: ...ce 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 INSTALLATION MANUAL AIR TO WATER HEAT PUMP Hydro Kit Original instruction www lg com Copyright 2018 LG Electronics Inc All Rights Reserved MFL67086712 Rev 00_101118 001 ENGLISH ɊɍɋɋɄɂɃ əɁɕɄ ITALIANO ESPAÑOL FRANÇAIS DEUTSCH Ǽȁȁ...

Page 8: ...n water temperature 30 C 35 C at outdoor ambient temperature 7 C 6 C 2 Tested under Eurovent Cooling condition water temperature 23 C 18 C at outdoor ambient temperature 35 C 24 C Max Allowable pressure High side 4 2 MPa Low Side 2 4 MPa Max Allowable water temperature High side 50 C Low side 10 C Max Allowable water pressure 0 98 MPa 0 3 10 kgf cm2 Type Hydro Kit HP Power Supply Ø V Hz Capacity C...

Page 9: ...temperature 7 6 Max Allowable pressure High side 4 2 MPa Low Side 2 4 MPa Max Allowable water temperature High side 80 C Low side 10 C Max Allowable water pressure 0 98 MPa 0 3 10 kgf cm2 Type Hydro Kit HP Power Supply Ø V Hz Capacity Heating kW kcal h Btu h Refrigerant Type Quantity kg lbs 8 4 1 220 240 50 25 2 13 8 21 700 11 870 85 900 47 000 R134a 3 6 6 2 3 5 04 ...

Page 10: ...gy for water tank Thermostat To control the unit by air temperature Heating Only type 230 V AC or 24 V AC Cooling Heating type 230 V AC or 24 V AC with Mode selection switch 3way valve and actuator To control water flow for hot water heating or floor heating 3 wire SPDT Single Pole Double Throw type 230 V AC 2way valve and actuator To control water flow for Fan Coil Unit 2 wire NO Normal Open or N...

Page 11: ...lling Sub line 40º or less Line supporter CAUTION Be very careful while carrying the unit Do not have only one person carry the unit if it is more than 20 kg 44 1 lbs PP bands are used to pack some products Do not use them as a mean for transportation because they are dangerous Tear plastic packaging bag and scrap it so that children cannot play with it Otherwise plastic packaging bag may suffocat...

Page 12: ...t affected by an electrical noise The place where there should not be any heat source or steam near the unit Installation Space The following values are the least space for installation If any service area is needed for service according to field circumstance obtain enough service space The unit of values is mm inch For Medium Temperature Unit mm inch 100 3 15 16 100 3 15 16 100 3 15 16 100 3 15 1...

Page 13: ... 4 520 20 15 32 300 11 13 16 Service space front side Service space left side 1 080 42 17 32 1 080 42 17 32 H Beam supporter Concrete supporter space space Anti Vibration material Unit mm inch 350 13 25 32 600 23 5 8 100 3 15 16 100 3 15 16 100 3 15 16 200 7 7 8 100 3 15 16 Piping space front side ...

Page 14: ... The base pad shall be more than 200 mm 7 7 8 inch For Medium Temperature For High Temperature Flat washer Anchor bolt Spring washer Nut Anti vibration material Concrete base Support 75 2 15 16 3 or more screw threads of the 2 bolts must be shown Unit mm inch 392 15 7 16 340 13 3 8 354 13 31 32 Unit mm inch 392 15 7 16 Drain pipe connection For Medium Temperature Hydro Kit does not use the drain p...

Page 15: ...e 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 connections Operation time of flow valve e g 3way valve or 2way valve should be less than 90 seconds Pipe i...

Page 16: ...ng combined circumstances 9 Install a circulation pump 5 which meets the water flow specifications mentioned inside product data book 10 Install the strainer 6 at the inlet water pipe connection to protect the PHE Do not charge water into the water pipe directly during Hydro Kit operation If the strainer is not installed component malfunction of Hydro Kit may occur For the strainer use one with 30...

Page 17: ...9 Automatic air separator 3 Service port Drain valve 10 Pressure safety relief valve 4 Magnetic filter Recommended 11 Pressure meter 5 Water Pump 12 Check valve 6 Strainer 13 Buffer tank DHW1 Sanitary Water Tank 7 Flow switch included in product Install the closed loop type water pipe system Balancing valve with flow meter is recommended to ensure 100 of the nominal flow 1 DHW Domestic Hot Water N...

Page 18: ... the installation conditions and local national regulation i e Shut off valves position for spare water pump and water pump service Flexible joint installation to prevent noise and vibration 13 12 1 1 Field Supply LG Supply 3 3 11 10 9 8 6 5 4 2 7 Drainage 1 Water Supply 5 1 1 FCU 14 Cooling Close PQRSTA0 Wired Remote Controller Wi fi Module PWFMDD200 Installation Scenes ...

Page 19: ...tion on the floor For 2 way valve control please refer the Accessories Installation 2 Way valve Balancing valve with flow meter is recommended to ensure 100 of the nominal flow If the water flow rate is too low or High PHEX could be frozen and burst or capacity could be reduced 1 Cooling operation is only available for Medium temperature Hydro Kit NOTICE Mode Condition 2 way valve Cooling FCU Not ...

Page 20: ...asy access and maintenance Water tank temperature sensor 14 connection 13 12 1 1 Field Supply LG Supply 3 3 11 10 9 8 6 5 4 2 7 Drainage 1 Water Supply 14 Wired Remote Controller Wi fi Module PWFMDD200 1 1 Shut Off valve 2 Expansion tank 3 Service port Drain valve 4 Magnetic filter Mandatory with Corrosive material of pipe 5 Water Pump 6 Strainer 7 Flow switch included in product 8 Balancing valve...

Page 21: ...ng operation mode of the hot water tank is not a mode selection by the remote controller it changes the 3 way valve direction to Water Tank base on the water tank temperature It is impossible to operate Hot water DHW during cooling mode 13 12 1 1 3 3 11 10 9 8 6 5 4 2 7 Drainage 1 Water Supply FCU 14 Cooling Close PQRSTA0 Wired Remote Controller Wi fi Module PWFMDD200 1 Water Supply Field Supply L...

Page 22: ...with EN 98 83 EC Directives DHW Sanitary water tank indirect heat exchange do not use anti water freezing treatment like ethylene glycol It is highly recommend to wash out inside of the DHW Sanitary water tank after installation for clean hot water Near the DHW Sanitary water tank there should be water supply and water drain for easy access and maintenance For 2 way or 3 way valve control please r...

Page 23: ... If the DHW does not have a anode tester manually the anode must be inspected and replaced each 3 5 year if needed What is an anode An anode protects the DHW tank against corrosion It consist of a bar of magnesium oxide A correct working anode is crucial to increase the lifetime of a Non stainless steel DHW tank while it makes the tank cathodic and prevent against corrosion How to install Solar Th...

Page 24: ...eze is used for installation or operation take care to ensure that antifreeze must not be touched 6 Ensure to respect all laws and norms of your country about Anti freeze usage 7 When hydro kit is applied for cooling the antifreeze must be added in the water circuit to prevent freezing 8 Set the DIP S W and short key to Anti Freeze mode only after the addition of brine Anti freeze Or else the prod...

Page 25: ...te a thick oxidized coating within the pipe to interfere with normal operation of valve and compressor etc Insulation Use rubber foamed insulation material EPDM NBR with high thermal resistance When installed in humid environment use thicker insulation material than usual Insert the insulation material within the product as deep as possible h The thickness of the above insulation material is based...

Page 26: ...ranch pipe when connecting the Hydro Kit Up to 16 kW 54 kBtu h capacity model 8 10 HP The pipe number of the connected gas pipe and liquid pipe must be same Flow water in the Hydro Kit when pipe searching process is performed Pipe searching process error may occur if the pipe temperature does not increase It is recommended that Hydro Kit 8 10 HP model is connected to No 1 valve and No 2 valve For ...

Page 27: ...o 5 6 7 8 Valve Control 8 No 1 2 Valve Control 1 No 1 2 5 6 Valve Control 9 No 2 3 Valve Control 2 No 1 2 7 8 Valve Control A No 3 4 Valve Control 3 No 3 4 5 6 Valve Control B No 5 6 Valve Control 4 No 3 4 7 8 Valve Control C No 6 7 Valve Control 5 No 1 2 3 4 5 6 Valve Control D No 7 8 Valve Control 6 No 1 2 3 4 6 7 Valve Control E No 1 2 3 4 Valve Control 7 No 1 2 3 4 7 8 Valve Control F One conn...

Page 28: ... sure to tighten so that the screw of the terminal does not get loose How to connect wirings For Medium Temperature For High Temperature Communication cable Communication cable Power cable Power cable Ground Communication cable Power cable Communication cable Power cable 8 HP 4 HP Make sure to tighten so that the screw of the terminal does not get loose CAUTION When connecting the power and commun...

Page 29: ... product will be damaged 2 Incorrect wiring confirmation test method Measure the resistance across the power terminals L N using a multi meter Resistance value of a normal connection 1 MΩ or more Incorrect wiring resistance value 500 mΩ or less For Medium Temperature For High Temperature Terminal block of indoor unit 1 L 2 N Terminal block of indoor unit 3 A 4 B Terminal block of outdoor unit SODU...

Page 30: ...lation between cable length and thickness 8 Do not install the earth leakage breaker in a place which is wet or moist Water or moisture may cause a short circuit 9 The following troubles could be caused by voltage drop down Vibration of a magnetic switch damage on the contact point there of fuse breaking disturbance to the normal function of a an overload protection device Proper starting power is...

Page 31: ... communication lines shall not be tied together WARNING Are all of the indoor units and outdoor units grounded If grounding is not properly done there is a risk of electric shock Grounding must be done by a qualified technician Consider the surrounding conditions surrounding temperature direct sunlight rain water etc when wiring the cable The thickness of the power cable is the minimum thickness o...

Page 32: ...er right If setting up remote controller cable into upper and right side please set up after removing remote controller cable guide groove h Remove guide groove with long nose Reclamation to the surface of the wall 3 Please fix remote controller upper part into the setup board attached to the surface of the wall as the picture below and then connect with setup board by pressing lower part Please c...

Page 33: ...lease connect indoor unit and remote controller using connection cable Optional extension cable purchased separately Please check if connector is normally connected Male plug ends Female plug ends Hydro Kit OK When installing the wired remote controller do not bury it in the wall It can cause damage in the temperature sensor Do not install the cable to be 50 m or above It can cause communication e...

Page 34: ...f Hydro Kit is suddenly powered off a plate heat exchanger burst may happen during oil return and defrosting cycle in cooling mode How to install Independent Power Module Step 1 Open the front panel of the control box Independent Power Module Step 2 Assemble the cover of independent power module fix it tightly with bolts and connect wires ...

Page 35: ...wer WARNING The wire should not be exposed to the outside otherwise it may leads to the malfunction of the independent power kit due to wire damage Wrong wiring also causes the malfunction of the independent power kit or damage to it Power should be supplied more than 20 minutes continuously in order to operate the independent power kit correctly Otherwise the independent power kit can not fully c...

Page 36: ... pump connecting location TB EXT PUMP SG ready connecting location TB SG Dry contact board locking location CN CC Wi Fi module locking location CN WF Remote controller locking location CN REMO Accessories Installation SG ready connecting location TB SG External PCB locking location CN EXT Remote controller locking location CN REMO Wi Fi module locking location CN WF Dry contact board locking locat...

Page 37: ...ter tank or Floor circuit 2way valve Hydro kit Terminal Block Mid Temp 14 15 16 230V output Live 14 15 Neutral 16 Change water flow to FCU or Floor Circuit Pump Hydro kit Terminal Block Mid Temp 11 12 High Temp 1 2 230V output Live 11 1 Neutral 12 2 Water circulation 3way valve Solar Terminal Block Mid Temp 1 2 3 230V output Live 1 2 Neutral 3 Change the water flow to Solar or Water tank circuit W...

Page 38: ...lay for pump capacity when connecting the pump to the unit Connect the relay to the terminal block Pump A of the control box Water tenk temperature sensor is needed for hot water mode Connect sensor housing to PCB CN TH4 connector red To activate hot water mode Dip S W should be set 2 3 according to DIP Switch Setting N L Pump A Relay Pump Water tank thermistor Housing CN TH4 CAUTION Make sure to ...

Page 39: ...al thermal influence may be applied such as above heating radiator or open window CAUTION 1 Use 230 V AC Thermostat 2 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 Please read thermostat manual carefully if the unit does not response quickly 3 Setting temperature range by thermostat can be ...

Page 40: ...ooling Thermostat Heating Cooling Thermostat must have Mode Selection feature to distinguish operation mode Heating Cooling Thermostat must be able to assign heating target temperature and cooling target temperature differently If above conditions are not kept the unit can not operation properly Heating Cooling Thermostat must send cooling or heating signal immediately when temperature condition i...

Page 41: ...t go to step 6 Step 5 Find terminal block and connect wire as below After connecting go to step 6 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 Never connect external electric loads such as valves fan ...

Page 42: ...ignal from Thermostat to PCB H Heating signal from Thermostat to PCB Step 6 Find terminal block and connect wire as below 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 Never connect external electric l...

Page 43: ...3 Separately set the option code of the attached controller on the indoor unit In detail refer to installer setting mode Step 4 The Connection wire does not matter if you change the color of the wire because of non polar Fixing screws 60 mm Fixing the Remote Sensor 2 1 CAUTION 1 Choose the place where the average temperature can be measured for the indoor unit operates 2 Avoid direct sunlight 3 Ch...

Page 44: ...Three wires consist of Live for selecting Flow A Live 1 for selecting Flow B and Neutral for common 2 Flow A means water flow from the unit to sanitary water tank 3 Flow B means water flow from the unit to under floor water circuit How to Wire 3Way Valve Follow below procedures Step 1 Step 2 Step 1 Uncover front cover of the unit and open the control box Step 2 Find terminal block and connect wire...

Page 45: ...ired these temperatures should be almost equivalent if thermal insulation of water pipe is well performed Noise or water pipe vibration while 3way valve operation Due to surging effect or cavitation effect noise or water pipe vibration can be occurred while 3way valve is operating In that case check followings Is water circuit both under floor water loop and sanitary water tank loop fully charged ...

Page 46: ...ic power is NOT supplied the valve is closed When electric power is supplied the valve is open How to Wire 2Way Valve Follow below procedures Step 1 Step 2 Step 1 Uncover front cover of the indoor unit and open the control box Step 2 Find terminal block and connect wire as below NO Live signal for Normal Open type from PCB to 2way valve NC Live signal for Normal Closed type from PCB to 2way valve ...

Page 47: ...ooms How to Install Dry Contact Connect CN_DRY with Control Unit To apply power source through Dry Contact PCB PDRYCB100 Dry Contact DRY CONTACT PCB LG does not supply this section Dry contact Controller CN_DRY 4 3 2 4 3 2 1 1 2 2 1 1 L N 220 240 V RY1 RY2 CN CC DRY CONTACT PCB Operation Display Error Check Display CN CC DRY CONTACT PCB INPUT 220 240 V LG does not supply this section 4 4 3 3 2 2 1...

Page 48: ...DLE HIGH Notes Do not input the voltage signal in NON VOLT setting mode otherwise it will cause serious damage Connect separate External voltage of DC 12 V AC 24 V Thermostat LG does not supply this section Field supply Thermostat LG does not supply this section Field supply COMM Themal Operation COMM FAN HEAT COOL LOW MIDDLE HIGH n For input contact voltage DC 12 V AC 24 V ...

Page 49: ... Reattachment absence 5 Emergency stop of all indoor units It can be set only when indoor unit has emergency stop function External Controller Indoor PCB CN_EXT 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 50: ...nt 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_EXT_PUMP fully External pump Relay External Pump TB_W_PUMP_C TB_W_PUMP_C Indoor PCB Indoor PCB Contact Signal Non Voltage Relay Power Source 30...

Page 51: ...tep 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 Wi fi Modem USB Cable CN_WF CN...

Page 52: ...g on input signal from power provider How to install smart grid 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 in PCB TB_SG2 TB_SG1 fully as shown below Smart Grid TB_SG2 TB_SG2 TB_SG1 TB_SG1 Indoor PCB Indoor PCB ...

Page 53: ...roper operation or degrade of performance can be expected DIP Switch Setting System Set Up CAUTION Turn off electric power supply before setting DIP switch Whenever adjusting DIP switch turn off electric power supply to avoid electric shock General Information Indoor PCB 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 54: ...ater pump is on Electric Heater Setup x x Not Use x Reserved Don t Select x Thermostat Connection x Not installed Installed Description DIP switch setting Function Default 1 2 3 4 5 6 7 8 Group Control x Master Slave Installation Scene x x Floor Heating x Floor Heating Hot Water x Floor Heating Hot Water Solar Hot Water Operation Mode Setting x Heating Only Heating Cooling Flow Switch Detection x ...

Page 55: ...RNING Do not add brine Anti freeze during Hot water mode x OFF On Description DIP switch setting Function Default 1 2 3 4 Sensor Selection x Sensor Air in Hydro Kit RS3 Air Sensor PQRSTA0 For High Temperature Option Switch 3 x OFF On Description DIP switch setting Function Default 1 2 3 4 Sensor Selection x Sensor Air in Hydro Kit RS3 Air Sensor PQRSTA0 Antifreeze Operation mode x Not Use connect ...

Page 56: ...er can control indoor units after setting only the address of master indoor unit Slave indoor unit will be operated like master indoor unit Slave indoor unit can not be individually controlled by Central controller Some remote controller can t perform with Dry Contact and Central controller at the same time So contact us further information about it 3 When using hot water mode it can be operated b...

Page 57: ...setting of indoor units be set possible using a PCB DIP Switch h It can be the cause of malfuctions when there is no setting of master and slave Accessories for group control setting Accessories for group control setting Slave Master PZCWRCG3 Indoor unit 2 EA Wired remote controller PZCWRCG3 cable used for connection OK Master CAUTION Indoor unit Hydro Kit s group setting is possible which connect...

Page 58: ... 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 59: ...possible in emergency 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 autom...

Page 60: ...r 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 problems caused will be the responsibility of the installer and may void the LG warrenty h Installer setting password Main screen menu setting service RMC versio...

Page 61: ...e of opposite operating mode cooling heating Pump test run Test Run Checking whether water circulation is normal Air cooling set temp Upper Limitation 24 C 30 C 30 default Lower Limitation 16 C 22 C 18 default N A Adjusting range of Setting Air Temperature in cooling mode Water cooling set temp FCU is not installed Upper limitation 20 25 24 default Lower limitation 16 20 16 default FCU is installe...

Page 62: ...or auto mode Tank disinfection setting 1 N A Disable default Enable Setting start maintain time for pasteurisation N A Sun Mon Fri Sat Default Fri Setting start maintain day for pasteurisation N A Start Time 00 23 Default 23 Setting start maintain time for pasteurisation Tank disinfection setting 2 N A 40 C 80 C 70 C Default The temperature set point during disinfection operation N A 5 min 60 min ...

Page 63: ... 0 It is a function to set the step value to adjust the hot water temperature thermal on off according to the field environment Heating temp setting 00 Leaving Default 01 Entering It is a function to set the water pipe temperature control standard for heating in accordance with the field environment Cooling temp setting 00 Leaving Default 01 Entering N A It is a function to set the water pipe temp...

Page 64: ...tion to set external input and output control ODU Function Master mastar slave slave default Setting of outdoor function Setting function of Master Slave Low Noise Mode Priority ODU ODU default RMC Function to set low noise mode control subject ODU cycle priority Not use Not use default Standby Function to enable or disable the standby mode of the indoor unit Use External Pump Not use Not use defa...

Page 65: ...mperature select Remote control and Indoor Unit Dry Contact Mode This function allows the Dry contact indoor unit operate under Auto Run mode or Manual mode with remote control panel 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 interfac...

Page 66: ...ving 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 NOTICE Water condensation on the radiator While cooling operation cold water may not flow to the radiator If cold water enters to the radiator dew generation on the surface of the radiator can be occurred NOTICE Water heati...

Page 67: ... FCU is installed FCU determines if FCU is installed or not Example If Stop temp is set as 16 and FCU is Use and actually FCU is NOT installed in the water loop the unit stop operation in cooling mode when the leaving water temperature is below 16 C Example If Stop temp is set as 16 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 sto...

Page 68: ...ion mode is running Max temp Target temperature of disinfection mode Duration time Duration of disinfection mode DHW heating should be enable If Disinfection active is set as Not use that is disable disinfection mode Start date and Start time is not used When Disinfection active is set as Use that is enable disinfection mode Start date is displayed at the position of Disinfection active and Start ...

Page 69: ...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 heating priority is on under floor heating ...

Page 70: ...e gap between DHW tank heating cycle Th On Th Off 0 0 5 1 5 1 1 2 2 2 3 3 3 4 TH on off Variable heating air Setting Thermal on off Air Temperature gap in heating mode TH on off Variable heating water Setting Thermal on off Water Temperature gap in heating mode TH on off Variable cooling air Setting the step value to adjust air temperature gap in cooling mode Th On Th Off 0 0 5 0 5 1 1 1 2 2 2 3 3...

Page 71: ...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 operation delay time option in cooling mode Forced operation If the product is not used for a long time the product will be forced to operate to prevent pump failure and PHEX freezing Water pump off After 20 consecutive hours disable e...

Page 72: ... operation time setting Defrost mode can be set 2 Setting of outdoor unit function Slave status No noise operation control subject setting No noise operation time setting No defrost mode setting Low Noise Mode Priority Setting whether to control in IDU or in ODU 1 Setting outdoor management of low noise operation It is controlled by outdoor unit according to switch setting value of low noise opera...

Page 73: ...resistance between the terminal block and ground is measured with DC mega tester DC 500 V Never check insulation resistance for the connector of the control board Operation Test of Water Pipe Category Status Check point Flow Switch Error CH14 Check whether operation of water pipe is normal Check for the block inside water pipe Strainer cleaning valve locked valve malfunction air remaining etc Chec...

Page 74: ...tion or short circuit 09 Indoor unit EEPROM error Communication between the micro processor the EEPROM Error due to EEPROM damage 11 Indoor unit inverter PCB communication error No signal communication between indoor unit inverter PCB 12 Inverter PCB error Error occurrence in inverter PCB 13 Solar thermal temperature sensor error Solar thermal temperature sensor disconnection or short circuit 14 F...

Page 75: ...of low pressure of inverter compressor causing compressor OFF 36 Low pressure ratio error of inverter compressor High pressure low pressure ratio of inverter compressor is maintained at below 1 8 for 3 min or more 40 Inverter compressor CT sensor defect Inverter compressor CT sensor defect 41 Inverter compressor discharge pipe temperature sensor defect Inverter compressor discharge temperature sen...

Page 76: ...e taken without hurting human body when refrigerant leaks in the air The limiting concentration shall be described in the unit of kg m3 Freon gas weight per unit air volume for facilitating calculation Limiting concentration The A weighted sound pressure emitted by this product is below 70 dB The noise level can vary depending on the site The figures quoted are emission level and are not necessari...

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