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INSTALLATION MANUAL
AIR
CONDITIONER
Please read this installation manual completely before installing the
product. Installation work must be performed in accordance with the
national wiring standards by authorized personnel only.
Please retain this installation manual for future reference after reading
it thoroughly.
Hydro Kit Wall mounted (medium temperature)
Original instruction (R32)
MFL67086714
Rev.00_072120
Copyright © 2020 LG Electronics Inc. All Rights Reserved.
www.lg.com
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Table of Contents
Related Manuals for LG Hydro Kit ARNH30GK1A4
Summary of Contents for LG Hydro Kit ARNH30GK1A4
- Page 1 Please retain this installation manual for future reference after reading it thoroughly. Hydro Kit Wall mounted (medium temperature) Original instruction (R32) www.lg.com MFL67086714 Rev.00_072120 Copyright © 2020 LG Electronics Inc. All Rights Reserved.
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Page 2: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS SAFETY INSTRUCTIONS INSTALLATION PART GENERAL INFORMATION Model Information Accessories INSTALLATION Transporting the Unit Selection of the best location INSTALLATION OF INDOOR UNIT Conditions where Indoor Unit is Installed PIPING AND WIRING FOR INDOOR UNIT Water Piping and Water Circuit Connection Water pump Capacity Pressure Drop... -
Page 3: Table Of Contents
TABLE OF CONTENTS SERVICE SETTING How to enter service setting Service setting Service contact Model information RMC version lnformation Open source license Installer setting 3 Minutes Delay Select Temperature Sensor Dry Contact Mode Pump test run Air cooling set temp. Water cooling set temp. -
Page 4: Safety Instructions
SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS Read the precautions in this This appliance is filled with manual carefully before flammable refrigerant (R32) operating the unit. This symbol indicates that a This symbol indicates that service personnel should be the Operation Manual should handling this equipment with be read carefully. - Page 5 SAFETY INSTRUCTIONS • For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. - There is risk of fire or electric shock. • Always ground the unit. - There is risk of fire or electric shock. •...
- Page 6 SAFETY INSTRUCTIONS • Be sure the installation area does not deteriorate with age. - If the base collapses, the unit could fall with it, causing property damage, unit failure, and personal injury. • Do not install the unit outdoor. - It may cause damage to the unit. •...
- Page 7 SAFETY INSTRUCTIONS • To prevent the mixing of different types of refrigerants, be sure to check the type of refrigerant used in the outdoor unit. • When mechanical connectors are reused indoors, sealing parts shall be renewed. (for R32) • When flared joints are reused indoors, the flare part shall be re- fabricated.
- Page 8 SAFETY INSTRUCTIONS • When flammable gas leaks, turn off the gas 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.
- Page 9 • The appliance shall be stored so as to prevent mechanical damage from occurring. • If anyone other than a licensed Professional installs, repairs, or alters LG Electronics Air Conditioning Products, the warranty is voided. - All costs associated with repair are then the full responsibility of the owner.
- Page 10 SAFETY INSTRUCTIONS • Refrigerant tubing shall be protected or enclosed to avoid damage. • Flexible refrigerant connectors (such as connecting lines between the indoor and outdoor unit) that may be displaced during normal operations shall be protected against mechanical damage. •...
- Page 11 SAFETY INSTRUCTIONS • Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants. (for R32) •...
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Page 12: Installation Part
INSTALLATION PART INSTALLATION PART Thank you for choosing LG Electronics Air-to-Water Heat Pump Hydro Kit Before starting installation, please make it sure that all parts are found inside the product box. INDOOR UNIT BOX Item Image Indoor unit Owner's / Installation manual... -
Page 13: General Information
To extend the functionality of Hydro Kit, there are various external auxiliary apparatus called as "accessories". They are classified by "accessories" and "3rd party accessories" according to the manufacturer. Accessories are presented LG Electronics, and 3rd party accessories are presented by related manufacturers. - Page 14 GENERAL INFORMATION Accessories supported by LG Electronics Item Purpose Model PHLTA : 1Ø DHW Tank Kit To operate with DHW tank PHLTC : 3Ø Remote Air To control by air temperature PQRSTA0 Sensor To receive on & off external signal...
- Page 15 GENERAL INFORMATION Accessories supported by 3rd party Companies Item Purpose Specification To generate auxiliary heating energy • Solar collector Solar Heating System for water tank • 3way valve(B) Heating-Only type (230 V AC) Thermostat To control by air temperature Cooling/Heating type (230 V AC with Mode selection switch) To connect external controller using Party Controller...
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Page 16: Installation
INSTALLATION INSTALLATION Transporting the Unit 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. - Page 17 INSTALLATION Minimum floor area(for R32) - The appliance shall be installed, operated and stored in a room with a floor area larger than the minimum area. - Use the graph of table to determine the minimum area. Amin (m Floor standing Wall mounted Ceiling mounted m (kg)
- Page 18 INSTALLATION If this product is installed in the a room smaller than minimum floor area, there shall be continuously operated mechanical ventilation system or natural ventilation openings. Natural ventilation [Room A] [Room B] → ≥ 50 % of Anv ≥ 1.5 m →...
- Page 19 INSTALLATION Mechanical ventilation If there is a mechanical ventilation system that satisfies with minimum air flow, a product can be installed in the room smaller than the minimum floor area. • The room shall comply with machinery room’s requirements of ISO 5149. m (kg) <...
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Page 20: Installation Of Indoor Unit
INSTALLATION OF INDOOR UNIT INSTALLATION OF INDOOR UNIT The indoor unit of Hydro Kit is installed inside where terminal of under floor water pipe cycle and refrigerant pipe from the outdoor unit are accessible at the same time. In this chapter conditions for installation place is described. In addition, considerations when installing accessories or 3rd party accessories are described, too. - Page 21 INSTALLATION OF INDOOR UNIT Mounting to Wall Step 1. Disconnect the remote control case from the front panel and disconnect the remote control cable. CAUTION After installation is completed, return the remote control to its original state. NOTE Use a flat-blade screwdriver or a coin to remove the remote control case. Step 2.
- Page 22 INSTALLATION OF INDOOR UNIT Step 4. Detach the Installation sheet. Screw bolts at the hole marks on the wall. When screwing bolts, use M8 ~ M11 anchor bolts to secure hanging the indoor unit. NOTE Self drilling screw can be used as alternatives of M8 ~ M11 anchor bolts. But M8 ~ M11 anchor bolts are more preferred.
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Page 23: Piping And Wiring For Indoor Unit
PIPING AND WIRING FOR INDOOR UNIT PIPING AND WIRING FOR INDOOR UNIT Procedures about water piping and electric wiring at the indoor unit are described in this chapter. Water piping and water circuit connection, water charging, pipe insulations will be shown for water piping procedures. - Page 24 PIPING AND WIRING FOR INDOOR UNIT WARNING Installing shut-off valve • While assembling two shut-off valves, that are found inside ‘AWHP Installation Kit (AET69364401)’, pop sound will be heard when valve is open or close by rotating handles. It is normal condition because the sound is due to leakage of charged nitrogen gas inside the valve.
- Page 25 PIPING AND WIRING FOR INDOOR UNIT Water Charging For water charging, please follow below procedures. Step 1. Open all valves of whole water circuit. Supplied water should be charged not only inside the indoor unit, but also in the under floor water circuit, sanitary water tank circuit, FCU water circuit, and any other water circuits controlled by the product.
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Page 26: Water Pump Capacity
PIPING AND WIRING FOR INDOOR UNIT Water pump Capacity The water pump use variable type which is capable to change flow rate, so it may be required to change default water pump capacity in case of noise by water flow. In most case, however, it is strongly recommended to set capacity as Rated flow-rate. - Page 27 PIPING AND WIRING FOR INDOOR UNIT MGQ62321902 : UPM3K GEO 20 - 75 CHBL (5 kW, 7 kW, 9 kW / for R32) Performance test based on standard ISO 9906 with pre-pressure 2.0bar and liquid temperature 20 °C. WARNING Selecting a water flowrate outside the curves can cause damage to or malfunction of the unit.
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Page 28: Typical Installation Example
PIPING AND WIRING FOR INDOOR UNIT Typical Installation Example CAUTION If Hydro Kit is installed with pre-existing boiler, the boiler and Hydro Kit should not be operated together. If entering water temperature of Hydro Kit is above 50 °C, the system will stop operation to prevent mechanical damage of the product. - Page 29 PIPING AND WIRING FOR INDOOR UNIT CASE 2: Connecting DHW Tank Outdoor Indoor Indoor Unit Outdoor Unit M / F Hot water Fan coil unit Floor heating loop Radiator tank tank tank City water NOTE tank • DHW tank - It should be equipped with internal electric heater to generate sufficient heat energy in very cold season.
- Page 30 PIPING AND WIRING FOR INDOOR UNIT CASE 3: Connecting Solar thermal system Outdoor Indoor Indoor Unit Outdoor Unit M / F Solar heat source Hot water tank Fan coil unit Floor heating loop Radiator tank tank tank City water NOTE •...
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Page 31: Water Cycle (For R32)
PIPING AND WIRING FOR INDOOR UNIT Water cycle (For R32) - Page 32 : Solar panel, Sensors, Thermostats, Interim heat SOLAR party accessory and Field installation exchanger, Water pump, etc. THERMAL (no connector) - To utilized hot water heated by SOLAR THERMAL (sold separately) SYSTEM SYSTEM, end-user must install Solar-Kit accessory (PHLLA) provided by LG...
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Page 33: Water Quality
PIPING AND WIRING FOR INDOOR UNIT Water Quality Water quality should be complied with EN 98/83 EC Directives. Detailed water quality condition can be found in EN 98/83 EC Directives. CAUTION • If the product is installed at existing hydraulic water loop, it is important to clean hydraulic pipes to remove sludge and scale. -
Page 34: Preparation For Piping
PIPING AND WIRING FOR INDOOR UNIT Preparation for Piping - Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. - Use the de-oxidised copper as piping materials to install. Step 1. Cut the pipes and the cable. Copper - Use the accessory piping kit or the pipes Slanted Uneven Rough... -
Page 35: Electrical Wiring
PIPING AND WIRING FOR INDOOR UNIT Electrical Wiring General Consideration Followings are should be considered before beginning indoor unit wiring. - Field-supplied electrical components such as power switches, circuit breakers, wires, terminal boxes, etc should be properly chosen with compliance with national electrical legislation or regulation. -
Page 36: Wiring Connection
PIPING AND WIRING FOR INDOOR UNIT Wiring Connection Connect the wires to the terminals on the control board individually according to the outdoor unit connection. • Ensure that the wire color of the outdoor unit and terminal No. are same as those of the indoor unit respectively. - Page 37 PIPING AND WIRING FOR INDOOR UNIT Electric Heater Wiring CAUTION Power Cable Specification : The power cord connected to the outdoor unit should be complied with IEC 60245 or HD 22.4 S4(Rubber insulated cord, type 60245 IEC 66 or H07RN-F) External power supply (same dedicated power 1 Phase(Ø)
- Page 38 PIPING AND WIRING FOR INDOOR UNIT CAUTION After the confirmation of the above conditions, prepare the wiring as follows: 1. Use a separate power source only for the air conditioner. For the method of wiring, follow the circuit diagram on the inner side of control box cover. 2.
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Page 39: Connecting Cables
PIPING AND WIRING FOR INDOOR UNIT Connecting Cables Types of the cables Classification Types Cables cross section Power cable(CV) x cores 4.0 x 3 Power cable(H07RN-F) x cores 1.5 x 3 Communication cable(VCTF-SB) x cores 1.0~1.5 x 2 The distance between communication cable and power cable - If the power cable and communication cable are tied together, system malfunction may occur with electrostatic, electromagnetic combination effect causing the interference signal. -
Page 40: Accessories Installation
In this chapter, specifications about supported 3rd party accessories and how to connect to Hydro Kit is introduced. It is noted that this chapter only deal with 3rd party accessories. For accessories supported by LG Electronics, please refer to installation manual of each accessories. - Page 41 ACCESSORIES INSTALLATION Direct Sun ray contact area 5 ft (1.5 m) Thermostat General Information The Heat Pump supports following thermostats. Type Power Operating Mode Supported Heating Only (3) Mechanical 230 V~ Heating / Cooling (4) Heating Only (3) Electrical 230 V~ Heating / Cooling (4) (1) There is no electric circuit inside the thermostat and electric power supply to the thermostat is not required.
- Page 42 ACCESSORIES INSTALLATION How to wire thermostat Follow below procedures Step 1 ~ Step 5. Step 1. Uncover front cover of the unit and open the control box. Step 2. Identify the power specification of the thermostat. If it is 220-240 V~, go to Step 3. Step 3.
- Page 43 ACCESSORIES INSTALLATION Final check • DIP switch setting : Set DIP switch No. 8 to ‘ON’. Otherwise, the unit can not recognize the thermostat. • Remote Controller : - ‘Thermostat’ text is displayed on the remote controller. - Button input is prohibited.
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Page 44: Dhw Tank
ACCESSORIES INSTALLATION DHW Tank To establish DHW circuit, 3way valve and DHW tank kit is required. If solar thermal system is pre-installed at the installation field, solar thermal kit is required to interface solar thermal system – to – DHW tank – to – Hydro Kit Installation condition Installing sanitary water tank requires following considerations : - Sanitary water tank should be located at the flat place. - Page 45 ACCESSORIES INSTALLATION General Information Hydro Kit supports following 3way valve. Type Power Operating Mode Supported Selecting “Flow A” between SPDT 230 V AC “Flow A” and “Flow B” (2) 3-wire Selecting “Flow B” between “Flow A” and “Flow B” (3) (1) : SPDT = Single Pole Double Throw.
- Page 46 ACCESSORIES INSTALLATION How to Wire DHW Tank Heater Step 1. Uncover heater cover of the DHW tank. It is located side of the tank. Step 2. Find terminal block and connect wires as below. Wires are field-supplied item. (L) : Live signal from PCB to Heater. (N) : Neutral signal from PCB to Heater.
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Page 47: Dhw Tank Kit
ACCESSORIES INSTALLATION DHW Tank Kit This product can be used by connecting the DHW tank kit in the field. It can be utilized hot water heated by booster heater in DHW tank. How to install DHW tank kit [Parts of DHW Tank Kit] Tank kit body Sensor Multi harness... - Page 48 ACCESSORIES INSTALLATION DHW Tank Inside Sensor Temperature Sensor DHW tank holder DHW tank outer wall Fig. 2 Insert sensor until the cable tie as shown below. CAUTION Sensor mounting Insert sensor into sensor socket and bolt it tightly.
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Page 49: Solar Thermal Kit
Solar Thermal Kit This product can be used by connecting the solar thermal kit in the field. It can be utilized hot water heated by solar thermal system. End-user must be LG AWHP solar thermal kit. How to Install Solar Thermal Kit... -
Page 50: Dry Contact
ACCESSORIES INSTALLATION Dry Contact Dry Contact is a solution for automatic control of HVAC system at the owner's best. In simple words, it's a switch which can be used to turn the unit On/Off after getting the signal from external sources. How to install dry contact [Parts of Dry contact] Dry Contact body... - Page 51 ACCESSORIES INSTALLATION [Setting of Contact Signal Input] • For input contact closure only(No power input) Thermostat LG does not supply this section (Field supply) Notes Do not input the voltage signal in "NON VOLT" setting mode otherwise it will cause serious damage •...
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Page 52: External Controller - Setting Up Programmable Digital Input Operation
ACCESSORIES INSTALLATION External Controller - Setting up programmable digital input operation If you require to operate control depending on external digital input(ON/OFF), connect cable to indoor PCB(CN_EXT). Follow below procedures step 1 ~ step 4. Step 1. Check if the power of the unit is turned off. Step 2. -
Page 53: Remote Temperature Sensor
ACCESSORIES INSTALLATION Remote Temperature Sensor Remote temperature sensor can be installed any place a user wants to detect the temperature. • The function is not available for some products. Installation condition Role and constraint while installation of remote air temperature sensor is very similar to that of thermostat. - Page 54 ACCESSORIES INSTALLATION How to Install Remote Temperature Sensor [Parts of Remote Temperature Sensor] Sensor Screw(to fix remote sensor) Follow below procedures step 1 ~ step 5. Step 1. Decide where the remote temperature sensor is Installed. Then, Determine the location and height of the fixing screws in fig.
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Page 55: Solar Pump
ACCESSORIES INSTALLATION Solar pump Solar pump can be required to energize water flow when solar thermal system is installed. How to install solar pump Follow below procedures step 1 ~ step 4. Step 1. Check if the power of the unit is turned off. Step 2. -
Page 56: Wi-Fi Modem
ACCESSORIES INSTALLATION Wi-fi Modem Wi-fi modem enables remote system operation from smartphone. Available functions include selection of on/off, operation mode, DHW heating, temperature setup and weekly scheduling etc. How to install Wi-fi Modem [Parts of Wi-fi modem] Wi-fi modem body USB Cable Extension Cable Follow below procedures step 1 ~ step 5. -
Page 57: 2Way Valve
ACCESSORIES INSTALLATION 2Way Valve 2way valve is required to control water flow while cooling operation. Role of 2way valve is to cut off water flow into under floor loop in cooling mode when fan coil unit is equipped for cooling operation. -
Page 58: 3Way Valve(A)
ACCESSORIES INSTALLATION 3Way Valve(A) 3Way Valve(A) is required to operate DHW water tank. Role of 3way valve is flow switching between under floor heating loop and water tank heating loop. Plus, it is required to operate 3 party boiler. General Information Hydro Kit supports following 3way valve. -
Page 59: 3Way Valve(B)
ACCESSORIES INSTALLATION 3Way Valve(B) 3way valve(B) is required to operate Solar thermal system. Role of 3way valve is flow switching between open and close mode of the solar circuit. General Information Hydro Kit supports following 3way valve. Type Power Operating Mode Supported Selecting “Flow A”... -
Page 60: Final Check
ACCESSORIES INSTALLATION Final check Check point Description - Check if the shut-off valves should be assembled with Connection of Water Water inlet and outlet pipe of the unit Inlet/Outlet - Check the location of the water inlet/outlet water pipe - Check the pressure of supplying water by using pressure gauge inside the unit Hydraulic pressure - Pressure of Supplying water should be Under 3.0 bar... - Page 61 SYSTEM SET-UP SYSTEM SET-UP As Hydro Kit is designed to satisfy various installation environment, it is important to set up system correctly. If not configured correctly, improper operation or degrade of performance can be expected. DIP Switch Setting CAUTION Turn off electric power supply before setting DIP switch •...
- Page 62 SYSTEM SET-UP DIP Switch Information Option Switch 2 Description Description Setting Setting Default Default As Master Role when central controller is equipped As Slave Unit + Outdoor unit is installed Unit + Outdoor unit + DHW tank Accessory installation is installed information Unit + Outdoor unit + DHW tank...
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Page 63: System Set-Up
SYSTEM SET-UP Option Switch 3 Description Description Setting Setting Default Default Remote sensor is not installed Remote Air Sensor Remote sensor is installed Antifreeze mode not use ANTIFREEZE Antifreeze mode Reserved Reserved Reserved Not Use... - Page 64 SYSTEM SET-UP NOTE Emergency Operation • Definition of terms - Trouble : a problem which can stop system operation, and can be resumed temporally under limited operation without certificated professional's assist. - Error : problem which can stop system operation, and can be resumed ONLY after certificated professional's check.
- Page 65 SYSTEM SET-UP NOTE • Duplicated trouble : Option trouble with slight or heavy trouble - If option trouble is occurred with slight (or heavy) trouble at the same time, the system puts higher priority to slight (or heavy) trouble and operates as if slight (or heavy) trouble is occurred.
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Page 66: Service Setting
SERVICE SETTING SERVICE SETTING How to enter service setting To enter the menu displayed at the bottom, you need to enter the service setting menu as follows. • In the menu screen, press [<,>(left/right)] button to select the setting category, and press [OK] button to move to the setting list. -
Page 67: Service Contact
SERVICE SETTING Service contact Check and input the service center phone number that you can call when there is service issue. • In the service setting list, select the service contact point and press [OK] button to move to the detail screen. -
Page 68: Model Information
SERVICE SETTING Model information Check product and capacity information to which the remote controller is connected. • In the service setting list, select model information category, and press [OK] button to move to the detail screen. • The unit capacity - 1 kWh = 1 kBtu * 0.29307 kWh is the result calculated based on Btu, There may be a small difference between calculated and actual capacity. -
Page 69: Rmc Version Lnformation
SERVICE SETTING 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... -
Page 70: Open Source License
SERVICE SETTING Open source license View the remote controller’s open source license. • In the service setting list, select the open source license category, and press [OK] button to move to the detail screen. -
Page 71: Installer Setting
SERVICE SETTING Installer setting • You can set the product user functions. • Some functions may not be displayed/operated in some product types. Function Description 3 Minutes Delay Factory use only Selection for setting temperature as air temperature or leaving Select Temperature Sensor water temperature or air+leaving water temperature Dry contact function is the function that can be used only when the... - Page 72 SERVICE SETTING Function Description TH on/off Variable, cooling Cooling air temperature TH On / Off Type setting TH on/off Variable, cooling Cooling Water Outlet Temperature TH On / Off Type water At the leaving water control in heating mode, the control reference Heating temp.
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Page 73: 73 3 Minutes Delay
SERVICE SETTING 3 Minutes Delay Temporarily eliminates the 3-minute delay function of the outdoor unit Comp - Factory use only • In the installer setting list, select 3 Minutes Delay category, and press [OK] button to move to the detail screen. -
Page 74: Select Temperature Sensor
SERVICE SETTING Select Temperature Sensor The product can be operated according to air temperature or leaving water temperature. The selection for setting temperature as air temperature or leaving water temperature is determined. • In the installer setting list, Select Temperature Sensor category, and press [OK] button to move to the detail screen. -
Page 75: Dry Contact Mode
SERVICE SETTING Dry Contact Mode Dry contact function is the function that can be used only when the dry contact devices is separately purchased and installed. • Change setting values using [<,>(left/right)] button. Value Auto manual NOTE For dry contact mode related detail functions, refer to the individual dry contact manual. What is dry contact? It means the contact point signal input when the hotel card key, human body detection sensor, etc. -
Page 76: Pump Test Run
SERVICE SETTING Pump test run The pump test run is the function to test run by operating the water pump. This function can be used for air vents / flow sensors and others. • In the installer setting list, Pump Test run category, and press [OK] button to move to the detail screen. -
Page 77: Air Cooling Set Temp
SERVICE SETTING Air cooling set temp. Determine cooling setting temperature range when air temperature is selected as setting temperature. • In the installer setting list, select Air cooling set temp category, and press [OK] button to move to the detail screen. Value Default Range... -
Page 78: Water Cooling Set Temp
SERVICE SETTING Water cooling set temp. Determine cooling setting temperature range when leaving water temperature is selected as setting temperature. • In the installer setting list, select water cooling set temp category, and press [OK] button to move to the detail screen. Value Default Range... -
Page 79: Air Heating Set Temp
SERVICE SETTING Air heating set temp. Determine heating setting temperature range when air temperature is selected as setting temperature • In the installer setting list, select Air heating set temp. category, and press [OK] button to move to the detail screen. Value Default Range... -
Page 80: Water Heating Set Temp
SERVICE SETTING Water heating set temp. Determine heating setting temperature range when leaving water temperature is selected as setting temperature. • In the installer setting list, select Water heating set temp. category, and press [OK] button to move to the detail screen. Value Default Range... -
Page 81: Dhw Set Temp
SERVICE SETTING DHW set temp. Determine heating setting temperature range when DHW temperature is selected as setting temperature • In the installer setting list, select DHW set temp. category, and press [OK] button to move to the detail screen. Value Range Max. -
Page 82: Water Supply Off Temp. During Cooling
SERVICE SETTING Water supply off temp. during cooling Determine leaving water temperature when the unit is turned off. This function is used for preventing condensation on the floor in cooling mode • In the installer setting list, select Water supply off temp. during cooling category, and press [OK] button to move to the detail screen. - Page 83 SERVICE SETTING - Stop temp. : cut-off temperature. Stop temp. is valid when FCU is installed. - FCU : determines if FCU is installed or not. - Example : If Stop temp. is set as ‘10’ 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 10 °C.
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Page 84: Heater Priority
SERVICE SETTING Heater priority • Heater priority : determine electric heater and DHW tank heater on and off. • Example : If Heater priority is set as ‘Main+Boost heater ON’, then electric 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. -
Page 85: Dhw Time Setting
SERVICE SETTING DHW time setting Determine following time duration : operation time of DHW tank heating, stop time of DHW tank heating, and delay time of DHW tank heater operating. - Active time : This time duration defines how long time DHW tank heating can be continued. - Stop time : This time duration defines how long time DHW tank heating can be stopped. -
Page 86: Th On/Off Variable, Heating Air
SERVICE SETTING TH on/off Variable, heating air It is a function to adjust the heating air temperature Thermal On / Off temperature according to the field environment in preparation for heating or heating claim. • You can set the following setting values using [<,>(left/right)] button. Description Value TH On... -
Page 87: Th On/Off Variable, Heating Water
SERVICE SETTING TH on/off Variable, heating water It is a function to adjust the heating water temperature Thermal On / Off temperature according to the field environment in preparation for heating or heating claim. • You can set the following setting values using [<,>(left/right)] button. Description Value TH On... -
Page 88: Th On/Off Variable, Cooling Air
SERVICE SETTING TH on/off Variable, cooling air It is a function to adjust the cooling air temperature Thermal On / Off temperature according to the field environment in preparation for cooling or cooling claim. • You can set the following setting values using [<,>(left/right)] button. Description Value TH On... -
Page 89: Th On/Off Variable, Cooling Water
SERVICE SETTING TH on/off Variable, cooling water It is a function to adjust the cooling water temperature Thermal On / Off temperature according to the field environment in preparation for cooling or cooling claim. • You can set the following setting values using [<,>(left/right)] button. Description Value TH On... -
Page 90: Heating Temp. Setting
SERVICE SETTING Heating temp. setting • At the 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 •... -
Page 91: Cooling Temp. Setting
SERVICE SETTING Cooling temp. setting • At the 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. •... -
Page 92: Pump Setting In Heating
SERVICE SETTING Pump setting in heating • It is a function to help the water pump's mechanical life by putting the water pump's rest time • Installer setting function to set water pump operation / delay time option in heating mode •... -
Page 93: Pump Setting. In Cooling
SERVICE SETTING Pump setting. in cooling • It is a function to help the water pump's mechanical life by putting the water pump's rest time • installer setting function to set water pump operation / delay time option in cooling mode •... -
Page 94: Forced Operation
SERVICE SETTING 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 / enable the logic that drives the water pump by itself •... -
Page 95: Cn_Cc
SERVICE SETTING CN_CC It is the function to set the usage of the unit’s CN_CC port. • Change setting values using [<,>(left/right)] button Value Description When power is applied to the product, the unit when the contact point D/C Automatic is on in Dry Contact installed state recognizes Dry Contact installation D/C Not Installed Do not use (install) Dry Contact... -
Page 96: Pump Frequency Setting (Rpm)
SERVICE SETTING Pump frequency setting (RPM) It is a function to enable installer to control pump RPM of AC pump application model. • In the installer setting list, select Pump frequency setting(RPM) category, and press [OK] button to move to the detail screen. •... -
Page 97: Pump Capacity
SERVICE SETTING Pump Capacity It is a function to enable installer to control Pump capacity application model. • In the installer setting list, select Pump Capacity category, and press [OK] button to move to the detail screen. • The function is not available for some products. Value Description 10~100 : %... -
Page 98: Cn_Ext
SERVICE SETTING CN_EXT It is a function to control external input and output according to DI type set by customer using CN-EXT Port. • In the installer setting list, select CN-EXT Port category, and press [OK] button to move to the detail screen. -
Page 99: Anti-Freezing Temperature
SERVICE SETTING Anti-freezing Temperature Anti-freeze temperature setting is available in installer mode. It prevents frostbite from happening In the range of -25 to -5 degree celsius. • Change setting values using [<, >(left/right)] button. • The function is not available for some products. NOTE To use this function, the antifreeze short pin(CN_FLOW2) must be open and switch No.2 in Option SW 3 must be on. -
Page 100: Pump Prerun/Overrun
SERVICE SETTING Pump Prerun/Overrun Pump Prerun operates to ensure sufficient flow before the compressor is operated. This is a function that allows heat exchange to work smoothly. Pump Overrun is a function to prevent water pump failure and to help mechanical life. If the water pump has been off for 20 hours, Water pump will operate for the set time Value Default... -
Page 101: Solar Thermal System
SERVICE SETTING Solar Thermal System It is function to set operation reference value in Solar Thermal System. In the installer setting list, select Solar thermal system category, and press [OK] button to move to the detail screen. NOTE To use this function, switch No.2 of option switch 2 must be turned ON and No.3 of option switch 2 must be turned OFF. - Page 102 SERVICE SETTING Descriptions for each parameters are as following. • Solar collector set temp - Min temp : It is the minimum solar collector temperature at which the solar thermal system can operate. - Max temp : It is the maximum solar collector temperature at which the solar thermal system can operate.
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Page 103: Current Flow Rate
SERVICE SETTING Current flow rate It is the function to check the current flow rate. • In the installer setting list, select Current Flow Rate category, and press [OK] button to move to the detail screen. The current flow rate can be checked. (Range : 7 ~ 80 L/min) •... -
Page 104: Data Logging
SERVICE SETTING Data logging It is the function to set the operation reference value in Seasonal Auto mode. • In the installer setting list, select Data logging category, and press [OK] button to move to the detail screen. NOTE Error history lookup range: 50 Error history information Item: date, time, mode (including Off), set temperature, incoming temperature, outgoing temperature, room temperature, Hot water operation / stop, Hot water set... -
Page 105: Password Initialization
SERVICE SETTING Password Initialization It is the function to initialize (0000) when you forgot the password set in the remote controller. • In the installer setting list, select the password initialization setting category, and press [OK] button to move to the detail screen. •... -
Page 106: Troubleshooting
SERVICE SETTING Troubleshooting If Hydro Kit operates not properly or it does not start operation, please check following list. CAUTION Turn off the power before proceeding troubleshooting. Troubleshooting for Problem while Operation Problem Reason Solution • Set target temperature correctly. •... - Page 107 SERVICE SETTING Troubleshooting for Error Code Display Title Cause of error Check point & Normal condition code Problem in remote room air sensor • Resistance: 10 k at 25 centigrade Problem in refrigerant (inlet side) sensor (unplugged) → for Remote room air sensor Problem in refrigerant (outlet side) sensor •...
- Page 108 SERVICE SETTING Display Title Cause of error Check point & Normal condition code • Abnormal operation of electric • If there is no problem in electric heater control, possible Water pipe heater maximum leaving water temperature is 57 °C(R410A)/65 • Leaving water temperature is above overheated °C(R32) 57 °C(R410A)/65 °C(R32)
- Page 109 SERVICE SETTING Airborne Noise Emission 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 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.
- Page 111 [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 The information for Eco design is available on the following free access website.