LG ARNH04GK3A4 Installation Manual
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LG ARNH04GK3A4 Installation Manual

LG ARNH04GK3A4 Installation Manual

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INSTALLATION MANUAL
AIR-TO-WATER
HEAT PUMP
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
Original instruction (R410A/R32)
MFL67086712
Rev.11_032425
Copyright © 2018 - 2025 LG Electronics Inc. All Rights Reserved.
www.lg.com

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Summary of Contents for LG ARNH04GK3A4

  • Page 1 Installation work must be performed in accordance with the national wiring standards by authorized personnel only. Please retain this installation manual for future reference after reading it thoroughly. Hydro Kit Original instruction (R410A/R32) www.lg.com MFL67086712 Copyright © 2018 - 2025 LG Electronics Inc. All Rights Reserved. Rev.11_032425...

  • Page 2: Table Of Contents

    Table of contents TABLE OF CONTENTS SAFETY INSTRUCTIONS INSTALLATION PARTS GENERAL INFORMATION Model Information General Information INSTALLATION Transporting the Unit Selection of the best location Installation Space Foundation for Installation Water Piping and Water Circuit Connection Installation Scenes Refrigerant Piping How to connect wirings Wiring Connection Connecting Cables...

  • Page 3: Safety Instructions

    Safety instructions Safety instructions The following symbols are displayed on indoor and outdoor units. Read the precautions in this manual This appliance is filled with flammable carefully before operating the unit. refrigerant. (for R32) This symbol indicates that a service This symbol indicates that the Operation personnel should be handling this Manual should be read carefully.
  • Page 4 Safety instructions • Install the panel and the cover of control box securely. - There is risk of fire or electric shock. • Always install a dedicated circuit and breaker. - Improper wiring or installation may cause fire or electric shock. •...

  • Page 5: Operation

    Safety instructions • The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater.) • Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
  • Page 6 Safety instructions • Do not allow water to run into electric parts. - There is risk of fire, failure of the unit, or electric shock. • Do not store or use flammable gas or combustibles near the unit. - There is risk of fire or failure of unit. •...
  • Page 7 • 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 8 Safety instructions • A brazed, welded, or mechanical connection shall be made before opening the valves to permit refrigerant to flow between the refrigerating system parts. • Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards. •...

  • Page 9: Installation Parts

    Installation Parts Installation Parts Thank you for choosing LG Electronics Hydro Kit Before starting installation, please make it sure that all parts are found inside the unit box. Item Image Quantity Remote Controller / Cable Sensor Holder Water Tank Temperature...

  • Page 10: General Information

    General Information General Information With advanced inverter technology, Hydro Kit is suitable for applications like under floor heating, and hot water generation. By Interfacing to various accessories user can customize the range of the application. Model Information Model name and related information •...
  • Page 11 General Information • For High Temperature Type Hydro Kit Power Supply Ø, V, Hz 1, 220-240, 50 25.2 13.8 Capacity Heating kcal/h 21 700 11 870 Btu/h 85 900 47 000 Type R134a Refrigerant Quantity kg(lbs) 3(6.6) 2.3(5.04) *1 : Tested under Eurovent Heating condition (Water temperature 55 ℃...

  • Page 12: 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. Accessories supported by LG Electronics...

  • Page 13: Installation

    Installation Installation Transporting the Unit • For High Temperature • When carrying the suspended unit, pass the ropes between legs of base panel under the unit. • Always lift the unit with ropes attached at 6 points so that impact is not applied to the unit. •...

  • Page 14: Selection Of The Best Location

    Installation Selection of the best location Select space for installing the unit, which will meet the following conditions: The place where the unit shall be installed inside. The place shall easily bear a load exceeding four times of the unit weight. The place where the unit shall be leveled.
  • Page 15 Installation <For High Temperature> 300(11-13/16) 520(20-15/32) 400(15-3/4) (Unit : mm(inch)) 100(3-15/16) space Piping space 350(13-25/32) (front side) Service space (left side) Service space 600(23-5/8) (front side) (Unit : mm(inch)) Anti Vibration material 100(3-15/16) 100(3-15/16) space 100(3-15/16) H-Beam supporter 200(7-7/8) Concrete supporter Hydro Kit Installation Manual 15...
  • Page 16 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...

  • Page 17: Foundation For Installation

    Installation Foundation for Installation • Fix the unit tightly with bolts as shown below so that the unit will not fall down due to earthquake. • Noise and vibration may occur from the floor or wall since vibration is transferred through the installation part depending on installation status.

  • Page 18: Water Piping And Water Circuit Connection

    Installation Water Piping and Water Circuit Connection General Considerations Followings should be considered before beginning water circuit connection. • Service space should be secured. • Water pipes and connections should be cleaned using water. • Space for installing external water pump should be provided. •...
  • Page 19 Installation Water cycle minimum requirements 1. For selecting the components of the hydraulic system, be sure they are above the design water pressure. 2. For the water pipe, diffusely tight water pipes are recommended instead of steel pipes. 3. For the drain pipe size, use the same diameter as the product connected or larger. Always install a natural drainage so that the drained water does not flows back 4.
  • Page 20 Installation LG Supply Field Supply Heating Cooling Drainage Shut-Off valve Balancing valve with flow meter Expansion tank Automatic air separator Service port(Drain valve) Pressure safety relief valve Magnetic filter(Recommended) Pressure meter Water Pump Check valve Strainer Buffer tank / Flow switch (included in product)

  • Page 21: Installation Scenes

    Shut-off valves position for spare water pump and water pump service, Flexible joint installation to prevent noise and vibration. 1) Space Heating/Cooling Installation Remote temperature Wired Remote Wi-fi Module sensor(PQRSTA0) Controller (PWFMDD200) LG Supply Field Supply (Cooling → Close) Water Supply Drainage Hydro Kit Installation Manual 21...
  • Page 22 Installation Shut-Off valve Balancing valve with flow meter Expansion tank Automatic air separator Service port(Drain valve) Pressure safety relief valve Magnetic filter (Mandatory with Pressure meter Corrosive material of pipe) Water Pump Check valve Strainer Buffer Tank Flow switch (included in product) Water Tank temperature Sensor (12 m) - For space heating / cooling, ‘DIP switch #2’...
  • Page 23 Wi-fi Module Controller (PWFMDD200) Service port(Drain valve) Magnetic filter (Mandatory with Corrosive material of pipe) Water Pump LG Supply Field Supply Strainer Flow switch (included in product) Balancing valve with flow meter Automatic air separator 10 Pressure safety relief valve...
  • Page 24 Installation 3) Water Tank(DHW) + Floor Heating Installation(Default) Remote temperature sensor(PQRSTA0) Wired Remote Controller Wi-fi Module (PWFMDD200) LG Supply Field Supply (Cooling → Close) Water Supply Water Supply Drainage Shut-Off valve Balancing valve with flow meter Expansion tank Automatic air separator...
  • Page 25 Installation 4) Water Tank(DHW) + Floor Heating + Solar booster Installation Remote temperature sensor(PQRSTA0) Wi-fi Module Wired Remote (PWFMDD200) Controller LG Supply Field Supply (Cooling → Close) Water Supply Water Supply Drainage Shut-Off valve Automatic air separator Expansion tank Pressure safety relief valve...
  • Page 26 Installation How to install Solar Thermal Kit(PHLLA) Step 1. Check the diameter of pre-installed pipes. (symbol Ⓐ and Ⓑ) Step 2. If the diameter of pre-installed pipes is different from diameter of solar thermal kit, it is necessary to reduce or extend of pipe diameter. Step 3.

  • Page 27: Freezing Protection

    Installation CAUTION • If the unit is installed at existing hydraulic water loop, it is important to clean hydraulic pipes to remove sludge and scale. • Installing sludge strainer in the water loop is very important to prevent performance degrade. •...

  • Page 28: Refrigerant Piping

    Installation Refrigerant Piping Cut the pipes and the cable - Use the accessory piping kit or the pipes Copper purchased locally. Slanted Uneven Rough tube 90° - Measure the distance between the indoor and the outdoor unit. - Cut the pipes a little longer than measured distance.
  • Page 29 Installation Connecting Heat Recovery systems PRHR042 / PRHR032 / PRHR022 - One connection of refrigerant pipe for HR unit is insufficient for the flow of refrigerant. Join two pipes with a branch pipe when connecting the Hydro Kit (Up to 16 kW (54 kBtu/h) capacity model: 8, 10 HP).
  • Page 30 Installation Connecting Heat Recovery systems PRHR083 / PRHR063 / PRHR043 / PRHR033 / PRHR023 - One connection of refrigerant pipe for HR unit is insufficient for the flow of refrigerant. Join two pipes with a branch pipe when connecting the Hydro Kit (Up to 61 kBtu/h capacity model: 8, 10 HP).

  • Page 31: How To Connect Wirings

    Installation How to connect wirings • For Medium Temperature Remove the box cover of electric parts and connect the wiring. CAUTION When connecting the power and communication cable, always Communication use the terminal connector cable (O-ring, Y-ring). Ground Communication Power cable cable Power cable...

  • Page 32: Wiring Connection

    Installation 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 33 Installation 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.

  • Page 34: Connecting Cables

    Installation Connecting Cables Types of the cables Classification types Cable cross section Power cable(CV) x cores 4.0 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 35 Installation Installation of Wired Remote Controller 1. Please fix tightly using provided screw after placing remote controller setup board on the place where you like to setup. - Please set it up not to bend because poor setup could take place if setup board bends. Please set up remote controller board fit to the reclamation box if there is a reclamation box.
  • Page 36 Installation 4. When separating remote controller from setup board, as the picture below, after inserting into the lower separating hole using screw driver and then, spinning clockwise, remote controller is separated. - There are two separating holes. Please individually separate one at a time. - Please be careful not to damage the inside components when separating.

  • Page 37: Independent Power Module

    Installation Independent Power Module Independent power module is required to protect a plate heat exchanger burst. When the outdoor unit is operating, if 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.
  • Page 38 Installation How to wire Independent Power Module Step 1. Turn the power off using circuit breaker. Step 2. Disconnect the EEV cable of the indoor units PCB(CN-EEV) Step 3. Connect the independent power kit(CN-EEV/LOAD) to the indoor units EEV, using harness 1. Step 4.

  • Page 39: Accessories Installation

    Accessories Installation Accessories Installation Location of Accessories and External Parts Connection • For Medium Temperature Refrigerant leak detector locking location (CN-LEAK-ROOM2) Water tank temperature sensor locking location (CN-TH4) Remote controller locking location (CN-REMO) Wi-Fi module locking location (CN-WF) Dry contact board locking location (CN-CC) External PCB locking location (CN-EXT) SG ready connecting location (TB-SG) External pump connecting location (TB-EXT-PUMP)
  • Page 40 • Connect 3way valve, if both floor heating and hot water is used. • Connect the separately purchased thermostat. • Dry contact is an accessory supplied by LG and installed by referring to the attached installation manual. • 3way valve, thermostat and pump are external parts for installation, which are not supplied by LG.

  • Page 41: Main Pump Connection

    Accessories Installation Main Pump Connection • Select the suitable pump by referring to the flow rate table with water Pump temperature difference between the entrance and the exit. • It is recommended that the flow rate is Rated water flow (refer to the specification of PDB) •...

  • Page 42: Thermostat

    Accessories Installation Thermostat Thermostat is generally used to control the unit by air temperature. When thermostat is connected to the unit, the unit operation is controlled by the thermostat. Installation Condition 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.

  • Page 43: General Information

    Accessories Installation General Information supports following thermostats. Hydro Kit Supported Supported Type Power Operating Mode (Medium Temperature) (High Temperature) Heating Only (3) 230 V AC Heating / Cooling (4) Mechanical Heating Only (3) 24 V AC Heating / Cooling (4) Heating Only (3) 230 V AC Heating / Cooling (4)

  • Page 44: How To Wire Thermostat

    Accessories Installation How to Wire Thermostat Follow below procedures Step 1 ~ Step 6. 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 230 V AC, go to Step 4. Otherwise, if it is 24 V AC, go to step 3.

  • Page 45: Final Check

    Accessories Installation Step 6. Find terminal block and connect wire as below. WARNING THERMOSTAT (Default : 230 V AC) 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. Thermostat Wire (L) and (N) should be used only for operation Electric type thermostat.

  • Page 46: Remote Temperature Sensor

    Accessories Installation Remote Temperature Sensor Remote temperature sensor can be installed any place a user wants to detect the temperature. How to Install Remote Temperature Sensor Step 1. After deciding where the remote temperature sensor is installed, decide the location and height of the fixing screws.

  • Page 47: How To Wire 3Way Valve

    Accessories Installation 3Way Valve 3way valve is required to operate sanitary water tank. Role of 3way valve is flow switching between under floor heating loop and water tank heating loop. General Information supports following 3way valve. Hydro Kit Type Power Operating Mode Supported Selecting “Flow A”...
  • Page 48 Accessories Installation Final Check • Flow direction : - Water should flow from water outlet of the unit to sanitary tank water inlet when sanitary tank heating is selected. - To verify the flow direction, check temperature at the water outlet of the unit and water inlet of sanitary water tank.

  • Page 49: How To Wire 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. General Information supports following 2way valve.

  • Page 50: Dry Contact

    Accessories Installation Dry Contact LG 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 like key-in lock, door or window switch etc specially used in Hotel rooms.
  • Page 51 Accessories Installation Setting of Contact Signal Input PDRY300 n For input contact closure only(No power input) Thermostat LG does not supply this section (Field supply) Notes Do not input the voltage signal in "NON VOLT" setting mode otherwise it will cause serious damage...

  • Page 52: External Controller

    Accessories Installation External Controller 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: External Pump

    Accessories Installation External pump External pump can be required when the room to take floor heating is too large or not well-insulated.(potential free) Also, External pump is installed with buffer tank to retain sufficient capacity. How to install external pump Follow below procedures step 1 ~ step 3.

  • Page 54: 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 55: Smart Grid

    Accessories Installation Smart Grid This product provides SG Ready function for users. It enables to stop internal operation (Heating / DHW) and control target temperature depending on input signal from power provider. How to install smart grid Follow below procedures step 1 ~ step 3. Step 1.

  • Page 56: System Set-Up

    System Set-Up System Set-Up is designed to satisfy various installation environment, it is important to set up system Hydro Kit 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 57 System Set-Up For Medium Temperature Option Switch 2 ● : OFF : On DIP switch setting Description Function Default 1 2 3 4 5 6 7 8 ○ Master Group Control ● Slave Floor Heating x ● ○ Floor Heating + Hot Water Installation ●...
  • Page 58 System Set-Up For Medium Temperature Option Switch 3 ● : OFF : On DIP switch setting Description Function Default ○ Sensor (Air) in Hydro Kit (RS3) Sensor Selection ● Air Sensor (PQRSTA0) ○ Not Use (connect short key) Antifreeze ● Operation mode Use (disconnect short key) For High Temperature...

  • Page 59: Group Control Setting

    System Set-Up Group Control Setting Group Control - Wired remote controller 1 + Many of Hydro Kit LGAP Network System Slave Slave Slave Master Display Error Message Only connect serial signal and GND lines between slave indoor unit Signal 12 V Master - DIP Switch in PCB ¿...
  • Page 60 System Set-Up CAUTION • Indoor unit(Hydro Kit)’s group setting is possible which connected same outdoor unit. • To install Master and Slave indoor unit, the DIP Switch setting should be same. • Group control is not possible between hydro kit and air conditioner. •...
  • Page 61 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 62 System Set-Up • 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. - Therefore, sometimes DHW heating can be impossible in emergency operation mode.

  • Page 63: Installer Setting

    LG warrenty. h Installer setting password Main screen →...
  • Page 64 System Set-Up Summary • You can set the product user functions. • Some functions may not be displayed/operated in some product types. Range Function text inside Short explanation remote Mid Temp. High Temp. Test run operates Multi V in Cooling mode Test Run Cool test run for max 18 minutes.
  • Page 65 System Set-Up Range Function text inside Short explanation remote Mid Temp. High Temp. Setting Cooling / Heating only mode when - Release(Default) Cooling / Heating only Multi V Indoor unit is used only cooling - Set mode mode in summer and Hydro Kit is used Oil recovery option Type 0(Default), 1(Not use) only heating in winter.
  • Page 66 System Set-Up Range Function text inside Short explanation remote Mid Temp. High Temp. - Operation Holding Time 5 min ~ - Operation Holding Time 5 min ~ 95 min (30 min Default) 95 min (30 min Default) Set the hot water maintenance / DHW time setting - Stop Holding Time 0 min ~ - Stop Holding Time 0 min ~...
  • Page 67 System Set-Up Range Function text inside Short explanation remote Mid Temp. High Temp. The error history of the connected indoor Data logging unit can be inquired. If you forget the user setting password, Password Initialization you can initialize it in the installer settings. The installation of the flare coupling part - Not Installed (Default) Refrigerant Leak Sensor...

  • Page 68: Common Setting

    System Set-Up Common Setting • Test Run Test run should be performed when charging the additional refrigerant is required. The unit must be operated in Cooling mode when the refrigerant is being charged. Test run instantly makes the unit operate in Cooling mode for 18 minutes. Note: •...

  • Page 69: Temperature Range Setting

    System Set-Up Temperature Range Setting • Air cooling set temp. Determine cooling setting temperature range when air temperature is selected as setting temperature. NOTE Only available when remote air temperature sensor is connected. • Accessory PQRSTA0 should be installed. • Also, Remote air sensor connection should be set properly. •...
  • Page 70 System Set-Up • Cooling / Heating only mode Set the Cooling / Heating only mode when Multi V Indoor unit is used only cooling mode in summer and Hydro Kit is used only heating in winter. NOTE • CH51 error occur when Combination Ratio exceed limitation without setting Cooling / Heating only Mode.
  • Page 71 System Set-Up • Tank disinfection setting 1, 2 Disinfection operation is special DHW tank operation mode to kill and to prevent growth of viruses inside the tank. - Disinfection active : Selecting enable or disable of disinfection operation. - Start date : Determining the date when the disinfection mode is running. - Start time : Determining the time when the disinfection mode is running.
  • Page 72 System Set-Up • Tank setting 1, 2 Descriptions for each parameters are as following. - Min temp. : temperature gap from Max outdoor temp. - Max outdoor temp. : maximum temperature generated by AWHP compressor cycle. - Example : If Min temp. is set as ‘5’ and Max outdoor temp. is set as ’48’, then Session A (see the graph) will be started when the water tank temperature is below 45 °C….
  • Page 73 System Set-Up • 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 74 System Set-Up • TH on/off Variable, DHW Setting the step value to adjust DHW temperature gap in heating mode Th On Th Off -2 ℃ 2 ℃ -6 ℃ 4 ℃ -2 ℃ 4 ℃ -1 ℃ 1 ℃ • Heating temp. setting At the leaving water control in heating mode, the control reference water temperature position setting.
  • Page 75 System Set-Up • CN_EXT Determining the purpose of CN_EXT Setting value: 0 ~ 5 step Indoor CN-EXT port setting - 0: default - 1: Simple operation on / off - 2: Dry contact (simple contact) - 3: 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) •...

  • Page 76: Test Run

    Test Run Test Run Caution before Operation Test • Check whether water flow is smoothly supplied. • Check whether the flow switch properly operates. • Check whether the connection status is good. • Check whether the power cable and communication cable are completely connected. •...

  • Page 77: Troubleshooting

    Test Run Troubleshooting If Hydro Kit operates not properly or it does not start operation, please check following list. Error No. Error Type Main Reasons Air temperature sensor disconnection or short Air temperature sensor error circuit Gas side temperature sensor disconnection or Gas side temperature sensor error short circuit No communication between wired...
  • Page 78 Test Run Inverter PCB error ( BC *** displayed in Remote Controller) Error No. Error Type Main Reasons Inverter compressor drive IPM defect / inverter Inverter compressor IPM defect compressor defect Inverter compressor overcurrent Increase of inverter compressor CT value Inverter compressor DC Link low After inverter activation relay is ON, DC voltage voltage...

  • Page 79: Airborne Noise Emission

    Test Run 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 80 80 Hydro Kit...
  • Page 81 Manufacturer : LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA UK 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.

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