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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.
Air-to-Water Heat Pump (For High Temperature)
[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
For more information, Refer to the CD or LG Web site (www.lg.com).
P/NO : MFL67212813
www.lg.com
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Related Manuals for LG AHNW166T0
Summary of Contents for LG AHNW166T0
- Page 1 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 For more information, Refer to the CD or LG Web site (www.lg.com). www.lg.com P/NO : MFL67212813...
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Page 2: Table Of Contents
AWHP Installation Manual TABLE OF CONTENTS 1. SAFETY PRECAUTIONS......................3 2. INSTALLATION PARTS ........................8 3. GENERAL INFORMATION ......................9 4. INSTALLATION ...........................10 TRANSPORTING THE UNIT ......................10 SELECTION OF THE BEST LOCATION..................11 INSTALLATION SPACE ......................12 COLLECTIVE / CONTINUOUS INSTALLATION FOR ROOF TOP USE ........16 FOUNDATION FOR INSTALLATION ..................17 WATER PIPING AND WATER CIRCUIT CONNECTION............18 SANITARY WATER TANK AND SANITARY WATER TANK KIT ..........22... -
Page 3: Safety Precautions
Safety Precautions 1. Safety Precautions To prevent injury to the user or other people and property damage, the following instruc- tions must be followed. n Be sure to read before installing the unit. n Be sure to observe the cautions specified here as they include important items related to safety. - Page 4 Safety Precautions Do not modify or ex- Do not install, remove, For antifreeze, always tend the power cable. or reinstall the unit by contact the dealer or an yourself (customer). authorized service cen- ter. • There is risk of fire or •...
- Page 5 Safety Precautions n Operation Take care to ensure Do not place anything Do not plug or unplug that power cable could on the power cable. the power supply plug not be pulled out or during operation. damaged during opera- tion. •...
- Page 6 Safety Precautions When the unit is Be cautious that water Ventilate the unit from soaked (flooded or sub- could not be poured to time to time when oper- merged), contact an the unit directly. ating it together with a Authorized Service stove, etc.
- Page 7 Safety Precautions n Installation Always check for gas Keep level even when Use two or more people (refrigerant) leakage installing the unit. to lift and transport the after installation or re- unit. pair of unit. • Low refrigerant levels • To avoid vibration or •...
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Page 8: Installation Parts
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 For more information, Refer to the CD or LG Web site (www.lg.com). www.lg.com P/NO : MFL67212813 OWNER’S MANUAL... -
Page 9: General Information
Model Information Model name and related information Type Air-to water Heat Pump (For High Temperature) Model Unit AHNW166T0 (Indoor) AHUW166T0 (Outdoor) Power Supply Ø, V, Hz 1, 220-240, 50 Capacity Heating kcal/h... -
Page 10: Installation
Installation 4. Installation Transporting the Unit • When carrying the suspended unit, pass the ropes between legs of base panel under the unit. • Always lift the unit with ropes attached at four points so that impact is not applied to the unit. •... -
Page 11: Selection Of The Best Location
Installation 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 12: Installation Space
Installation 3. When installing the outdoor unit in a place that is constantly exposed to a strong wind like a coast or on a high story of a building, secure a normal fan operation by using a duct or a wind shield. •... - Page 13 Installation 2) Outdoor Unit • 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. n In case of obstacles on the suction side 1.
- Page 14 Installation n In case of obstacles on the discharge side 1. Stand alone installation 2. Collective installation [Unit:mm] n In case of obstacles on the suction and the discharge side Ú Obstacle height of discharge side is higher than the unit 1.
- Page 15 Installation 2. Collective installation L > H L > H [Unit:mm] Ú Obstacle height of discharge side is lower than the unit 1. Stand alone installation L ≤ H L ≤ H 2. Collective installation L ≤ H L ≤ H [Unit:mm] Installation Manual 15...
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Page 16: Collective / Continuous Installation For Roof Top Use
Installation Collective / Continuous Installation for roof top use Space required for collective installation and continuous installation: When installing several units, leave space between each block as shown below considering passage for air and people. 1. One row of stand alone installation [Unit:mm] 2. -
Page 17: Foundation For Installation
Installation Foundation for Installation 1) Indoor Unit • 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 in- stallation 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 * For the water pipe system, use the closed loop type. 1. For the parts of the water pipe system, use the parts above the design water pressure. 2. For the water pipe, do not use steel pipe. 3.
- Page 20 Installation * Water tank & Floor heating installation 1. Use the pump (1) with sufficient capacity to assure loss of overall water pressure and to supply water to the Indoor Unit. 2. Install the shut-off valve (2) on both sides of the pump to clean and repair the pump. 3.
- Page 21 Installation Strainer - Use the 50 mesh strainer. (Exclude scale diameter of 0.4mm or less and other net) - Check the strainer direction and assemble on the inlet hole (Refer to picture) - Wrap the Teflon tape on the screw thread of the water pipe for more than 15 times for assembly. - Install the service port facing downward.
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Page 22: Sanitary Water Tank And Sanitary Water Tank Kit
Installation Sanitary Water Tank and Sanitary Water Tank Kit Installation Condition Installing sanitary water tank requires following considerations : • Sanitary water tank should be located at the flat place. • Water quality should comply with EN 98/83 EC Directives. •... -
Page 23: Installation Scenes
Installation Installation Scenes Some installation scenes are presented for example. As these scenes are conceptual figures, in- staller should optimize the installation scene according to the installation conditions. 1) Floor Heating only Fan coil unit Floor heating loop Radiator 2) Floor Heating + Hot water Fan coil unit Floor heating loop Radiator... - Page 24 Installation Water Quality Water quality should comply with EN 98/83 EC Directives. Requirement for resolved chemical ingre- dients is following table. Detailed water quality condition can be found in EN 98/83 EC Directives. Parameter Value Parameter Value Acrylamide 0.10 μg/ Fluoride 1.5 mg/ Antimony...
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Page 25: Refrigerant Piping
Installation Refrigerant Piping Cut the pipes and the cable Copper - Use the accessory piping kit or the pipes pur- Slanted Uneven Rough tube 90° chased locally. - Measure the distance between the indoor and the outdoor unit. - Cut the pipes a little longer than measured distance. - Cut the cable 1.5m longer than the pipe length. -
Page 26: Flare Shape And Flare Nut Tightening Torque
Installation Flare shape and flare nut tightening torque Precautions when connecting pipes • See the following table for flare part machining dimensions. • When connecting the flare nuts, apply refrigerant oil to the inside and outside of the flares and turn them three or four times at first. -
Page 27: Connecting The Pipes To The Outdoor Unit
Installation Connecting the pipes to the outdoor unit • Align the center of the piping and sufficiently Continuous tighten the flare nut by hand. • Finally, tighten the flare nut with torque wrench until the wrench clicks. - When tightening the flare nut with torque wrench, ensure the direction for tightening fol- lows the arrow on the wrench. -
Page 28: Cautions For Handling Service Valve
Installation CAUTION • Make sure that pipe doesn't contact with the compressor terminal cover and comp bolt. • Always insulate the liquid and gas-side field piping and branch. Cautions for Handling Service Valve • The service valves are closed at shipment from the factory CAUTION Make sure to keep the valve open during operation The names of parts of the service valve are... -
Page 29: Selection Of Refrigerant Piping
Installation Selection of Refrigerant Piping Outdoor unit Gas pipe Liquid pipe Main pipe L 50m Piping parts Name Selection of pipe size Size of main pipe Outdoor unit Liquid pipe Gas pipe Indoor Main pipe capacity[kW(Btu/h)] [mm(inch)] [mm(inch)] 16.0(54,600) Ø9.52(3/8) Ø15.88(5/8) The Amount of Refrigerant The calculation of the additional charge should take into account the length of pipe. -
Page 30: Leak Test And Vacuum Drying
Installation Leak Test and Vacuum Drying 1. Leak test Leak test should be made by pressurizing nitrogen gas to 3.8 MPa(38.7kgf/cm ). If the pressure does not drop for 24 hours, the system passes the test. If the pressure drops, check where the nitro- gen leaks. - Page 31 Installation 2. Vacuum Vacuum drying should be made from the service port provided on the outdoor unit’s service valve to the vacuum pump commonly used for liquid pipe, gas pipe. Vaccum of the pipe and the indoor units should be made from the port of the outdoor unit's service valve with the service valve closed.
- Page 32 Installation 3. Refrigerant charging Follow following procedure to charge the refrigerant. 1. Open all service valves 2. Run the unit with cooling mode 3. Charging the refrigerant to gas service valve during operation. Open Open Refrigerant cylinder CAUTION Never charge the refrigerant with service valves closed and unit stopped. If charging is carried out with service valves closed and unit stopped, the compressor will be damaged.
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Page 33: How To Connect Wirings
Installation How to connect wirings 1) Indoor Remove the box cover of electric parts and connect the wiring CAUTION When connecting the power and communication cable, always use the terminal connector (O- ring, Y-ring). Communication cable Power cable Make sure to tighten so that the screw of the ter- minal does not get loose. -
Page 34: Connection Method Of The Connecting Cable (Example)
Installation Connection method of the connecting cable (Example) 1. Make a hole appropriate for the passage of connection cable through on cap by tool. 2. After knocking out the holes, we recommend you paint the edges and areas around the edges using the repair paint to prevent rusting 3. - Page 35 Installation 2) Outoor 1. Caution 1) Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company. WARNING Be sure to have authorized electrical engineers do the electric work using special circuits in accordance with regulations and this installation manual.
- Page 36 Installation CAUTION • This product have reversed phase protection detector that only works when the power is turned on. If there exists black out or the power goes on and off which the product is operating, attach a reversed phase protection circuit locally. run- ning the product in reversed phase may break the compressor and other parts.
- Page 37 Installation Connection method of the connecting cable (Example) 1. Connect power supply cable to terminal block of control case using clamps on the sup- porter and control case as shown figure right. 2. Connect communication cable to main PCB terminal block using clamps on the supporter and main PCB case as shown figure right.
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Page 38: Connecting Cables
Installation Connecting Cables Types of the cables Classification types Cable cross section Indoor Power cable(CV) x cores 4.0 x 3 Outdoor Power cable(H05RN-F) x cores 6.0 x 3 Communication cable(VCTF-SB) x cores 1.0~1.5 x 2 Safety Breaker Current Recommended Fuses Indoor Unit Outdoor Unit The distance between communication cable and power cable... -
Page 39: Communication And Power Cable
Installation Communication and Power cable 1) Remote control cable • Types : 3-core cable 2) Central control cable • Types : 4-core cable (Shielding wire) • Cross section : over 1.0~1.5mm • Insulation material : PVC 3) Separation of communication and power cable •... -
Page 40: Wiring Of Main Power Supply And Equipment Capacity
Installation Wiring of Main Power Supply and Equipment Capacity Indoor unit (1Ø, 220-240, 50Hz) Outdoor unit (1Ø, 220-240, 50Hz) 1. Separate power supply lines for the indoor units from outdoor unit. 2. Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections. -
Page 41: Accessories Installation
Accessories Installation 5. Accessories Installation Location of Accessories and External Parts Connection Dry contact board attachment location Dry contact board locking location (CN-CC) Remote controller locking location (CN-REMO) Water tank temperature sensor locking location (CN-TH4) PUMP 3WAY VALVE THERMOSTAT (Default : 230V AC) •... - Page 42 Accessories 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 43 Accessories Installation 4. Please connect indoor unit and remote controller using connection cable. Please check if connector is normally connected. Indoor Unit side Connecting cable 5. Please use extension cable if the distance between wired remote controller and indoor unit is more than 10m. When installing the wired remote controller, do not bury it in the wall.
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Page 44: Main Pump Connection
Accessories Installation Main Pump Connection • Select the suitable pump by referring to the flow rate table with water tem- Pump perature difference between the entrance and the exit. (main) *It is recommended that the flow rate is 23LPM. • Use the pump with enough capacity to guarantee the loss of entire water pressure and to supply the Indoor Unit with water. -
Page 45: 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 1~230 V 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 46 Accessories Installation General Information Indoor Unit supports following thermostats. Type Power Operating Mode Supported Mechanical (1) 1~ 230 V Heating Only (3) Electrical (2) 1~ 230 V Heating Only (3) (1) There is no electric circuit inside the thermostat and electric power supply to the thermostat is not required.
- Page 47 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’ icon is displayed on the remote controller. - Button input is prohibited. Thermostat Icon NOTICE Thermostat Operation with Remote Controller...
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Page 48: 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 in- stalled, decide the location and height of the fixing screws. (Interval between the screws : 60mm) Fixing screws 60mm... -
Page 49: 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 Indoor Unit supports following 3way valve. Type Power Operating Mode Supported Selecting “Flow A”... - Page 50 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.
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Page 51: 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 like key-in lock, door or window switch etc specially used in Hotel rooms. How to Install Dry Contact Connect CN_DRY with Control Unit. -
Page 52: System Set-Up
System Set-Up 6. System Set-Up As Air-to-Water Heat Pump (For High Temperature) is designed to satisfy various installation environ- ment, it is important to set up system correctly. If not configured correctly, improper operation or degrade of performance can be expected. DIP Switch Setting 1) Indoor •... - Page 53 System Set-Up 2) Outdoor Main PCB 1. When outdoor unit is powered on after con- SW02V Auto addressing figuring the DIP switch, proper input of con- 7 - Segment SW01V Data confirm figuration value can be verified through 7-Segment. 2. This function is shown only for 2 seconds after turning on the power.
- Page 54 System Set-Up n Setting the DIP switch • If you set the Dip switch when power is on, the changed setting will not be applied immediately. The changed setting will be enabled only when Power is reset or by pressing Reset button. 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7...
- Page 55 System Set-Up n The Procedure of Automatic Addressing Power On All DIP switch should be off before auto adressing Waiting 3 minutes Press SW02V for 5 s Auto addressing start 7-segment LED = 88 • Auto addressing setting end Waiting about 2~7 minutes Numbers of indoor unit connection set whose addressing is completed are indicated for 30seconds on 7-segment LED after completing setting...
- Page 56 System Set-Up n How to connect central controller - The communication lines connected to INTERNET terminal should be connected to central control of Outdoor unti with care for their polarity( A → A, B → B ) - Connect communication lines between outdoor unit and indoor units through the terminal block. - When connecting communication line between outdoor unit and indoor units with shielded wire, connect the shield ground to the earth screw.
- Page 57 System Set-Up NOTICE 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 58 System Set-Up • Following features are permitted in emergency operation : WATER OPER Operation On/Off HEATING MODE WATER OPER HEATING MODE VIEW TEMP button(*) TEMP Temperature adjusting button(**) TEMP TEMP WATER WATER OPER Sanitary water heating button HEATING HEATING MODE (*) : Temperature measured by failed sensor is displayed as ‘- -’.
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Page 59: Installer Setting
System Set-Up Installer Setting How to enter installer setting mode CAUTION Installer setting mode is to set the detail function of the remote controller. If the installer setting mode is not set correctly, it could cause problems to the unit, user injury or property damage. - Page 60 System Set-Up Summary Example of Fuction Code Display Function Code Value #1 Value #2 Function Default Value #1 Value #2 Remark Disable 3 Min. Delay 02:01 01 : NOT connected. Remote Air Sensor Connection 03:01 02 : connected. 01 : Celsius Celsius/Fahrenheit Switching 04:01 02 : Fahrenheit...
- Page 61 System Set-Up Common Setting • Function Code 02 : Disable 3 minute Delay Only used for an inspection in a factory. • Function Code 03 : Remote Air Sensor Connection If remote air sensor is connected to control the unit by room air temperature, the connection infor- mation should be notified to the unit.
- Page 62 System Set-Up Temperature Range Setting • Function Code 13 : Setting Air Temperature in Heating Mode Determine heating setting temperature range when air temperature is selected as setting tempera- ture. CAUTION Only available when remote air temperature sensor is connected. •...
- Page 63 System Set-Up Temperature Control Parameter Setting and Etc • Function Code 23, 24, and 25 : Setting Weather-dependent operation Weather-dependent operation is that the unit automatically adjusts target temperature (leaving water or room air) according to the outdoor air temperature. - Value #1 and Value #2 of Function Code 23 : range of outdoor air temperature - Value #1 and Value #2 of Function Code 24 : range of auto-adjustable target room air temperature - Value #1 and Value #2 of Function Code 25 : range of auto-adjustable target leaving water tem-...
- Page 64 System Set-Up • Function Code 26 and 27 : Setting Disinfection operation Disinfection operation is special sanitary tank operation mode to kill and to prevent growth of viruses inside the tank. - Value #1 of Function Code 26 : Selecting disinfection operation mode. ‘00’ for setting disinfection mode off, and ‘01’...
- Page 65 System Set-Up • Function Code 28 and 29 : Setting control parameter for Sanity water heating operation Descriptions for each parameters are as following. - Value #1 of Function Code 28 : temperature gap from Value #2 of Function Code 28. - Value #2 of Function Code 28 : maximum temperature.
- Page 66 System Set-Up • Function Code 2B : Setting sanitary water heating timers Determine time duration : Operation time and stop time of sanitary tank heating. - Value #1 of Function Code 2B : This time duration defines how long sanitary tank heating can be continued.
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Page 67: Test Run
Test Run 7. Test Run Checks before Test Run 1. Test run should be performed after auto-addressing 2. Test run can be performed when 3 minutes passed after power on, by DIP switches and but- tons. - needs time for initializing data of micom and readying communication with indoor unit. 3. -
Page 68: Checks Before 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 69: Caution Before Operation Test
Test Run Troubleshooting 1) Indoor Unit • This function displays the disorder types at the self diagnostics and the occurrence of the dis- order for the product. • The disorder display shows the code in the following table on the red/green LED of the wired remote controller and outdoor unit control board. - Page 70 Test Run Inverter PCB error display method Red LED means error number 10 digits, and green LED means 1 digit, and if red and green blink at the same time, it means the unit of 100. Ex) Inverter compressor IPM defect Error : error number 21 Error LED 1 LED 2...
- Page 71 Test Run 2) Outdoor Unit Error Indicator • This function indicates types of failure in self-diagnosis and occurrence of failure for air condition. • Error mark is displayed on display window of indoor units and wired remote controller, and 7-seg- ment LED of outdoor unit control board as shown in the table.
- Page 72 Test Run Error No. Error Type Main Reasons Inverter compressor suction pipe Inverter compressor suction temperature temperature sensor defect sensor disconnection or short circuit Defective IPM Temperature Disconnection or short circuit on IPM Sensor temperature sensor of the outdoor unit Communication error : inverter Failing to receive inverter signal at main PCB →...