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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.

INSTALLATION MANUAL

AIR

CONDITIONER

P/NO : MFL69676201

ENGLISH

IT

ALIANO

1,MFL69676201,영영  2017. 3. 8.  영영 3:06  Page 1

Summary of Contents for THERMAV AHNW16606B0

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 INSTALLATION MANUAL AIR CONDITIONER P NO MFL69676201 ENGLISH ITALIANO 1 MFL69676201 영영 2017 3 8 영영 3 06 Page 1 ...

Page 2: ...N THE WALL 13 INSTALLATION AT SEASIDE 14 SEASONAL WIND AND CAUTIONS IN WINTER 14 INSTALLATION OF INDOOR UNIT 15 GENERAL 15 LOCATION OF THE DEVICE 16 CONNECTION WITH THE OUTDOOR UNIT 18 HYDRAULIC CONNECTION 22 ELECTRICAL CONNECTION 31 CONNECTION OF THE SPATIAL CORRECTOR KT 1 AND KT 2 ACCESSORIES 44 REFRIGERANT PIPING 46 PIPING AND WIRING FOR OUTDOOR UNIT 46 ELECTRICAL WIRING 50 FINALIZING 55 LEAKAG...

Page 3: ... authorized by the manufacturer to perform maintenance and servicing of the device The user uses the device according to its use The installer is a person professionally trained for performing hardware and or electric installation work and mounting of the device Incorrect use of the device can lead to damage to the device property or injury to the user To reduce risk the manual points out importan...

Page 4: ... understand possible hazards of its operation Children older than 8 and people with reduced physical and mental capacities and with lack of experience and knowledge can only operate the device under the supervision of an informed person Before installation and any further adjustments to the device it is necessary to consider the man ual for safe use and maintenance The installation has to be perfo...

Page 5: ...on area does not deteriorate with age Do not install the water pipe system as Open loop type Use a vacuum pump or inert nitrogen gas when doing leakage test or purging air Do not com press air or oxygen and do not use flammable gases Make sure the connected condition of connector in product after maintenance Do not touch leaked refrigerant directly Take care to ensure that power cable could not be...

Page 6: ...as to provide electricity of ade quate quality SIST EN 50160 In normal conditions this is within 10 of the rated voltage The data about the state of the electrical grid have to be acquired from the electrical distributor Connecting the device to the electric grid has to be performed in accordance with the standards The device has to be connected to the electric grid via the power supply cut off wh...

Page 7: ...roughly study the instructions for use and installation accompanying the device before instal lation To install the device in accordance with the instructions and national legislation policies and stan dards in force For ensuring unobstructed and effective operation of the device the user has to follow the following instructions To thoroughly study the instructions for use and installation accompa...

Page 8: ...re 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 INSTALLATION MANUAL AIR CONDITIONER 1 Owner s Manual www lg com Please read this manual carefully before operating your set and retain it for future reference OWNER S MANUA...

Page 9: ...or ambient temperature 7 C 6 C 2 tested under Eurovent Cooling condition water temperature 23 C 18 C at outdoor ambient temperature 35 C 24 C 3 All appliances were tested at atmospheric pressure Model Information A H N W 1 6 6 0 6 B 0 Series Number Function B DHW tank inegrated with Buffer tank D DHW tank integrated Heater Capacity kW 06 6kW Heater Electrical ratings 6 1 phase 220 240V AC 50Hz Hea...

Page 10: ...ank 2 Heating Cooling Outlet B Circulating pump 3 Warm sanitary water C Electric flow heater 4 DHW circulation D TT3000 Controller 5 Cold sanitary water supply E Condenser 6 Gas pipe 5 8 refrigerant F 3 Way Valve 7 Liquid pipe 3 8 refrigerant G DHW tank 8 Mg Anode unit mm 1 MFL69676201 영영 2017 3 8 영영 3 06 Page 10 ...

Page 11: ...ral Information Outdoor unit External Supporter 490 Description No Name 1 2 3 Liquid side Service Valve Gas side Service Valve Air discharge Grill Product Heating Capacity 14kW U3 Chassis unit mm 1 MFL69676201 영영 2017 3 8 영영 3 06 Page 11 ...

Page 12: ...t direct sunlight or rain exposure make sure that heat ra diation from the heat exchanger is not restricted Ensure that the spaces indicated by arrows around front back and side of the unit Do not place animals and plants in the path of the warm air Take the weight of the outdoor unit into account and select a place where noise and vibration are minimum Select a place so that the warm air and nois...

Page 13: ...g the heating according to the external temperature it is necessary to install the exter nal temperature sensor The sensor must be set up in a shady spot The sensor must not be set up above a window or door It must be located away from heat sources For measuring external temperature the sensor type PT 1000 is used T Temperature sensor for external temperature The external sensor must be connected ...

Page 14: ...easide 1 Air conditioners should not be installed in areas where corrosive gases such as acid or alkaline gas are produced 2 Do not install the product where it could be exposed to sea wind salty wind directly It can result corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunc tion or inefficient performance 3 If outdoor unit is installed ...

Page 15: ... Cooling Outlet 4 DHW circulation C Electrical and communication connection 5 DHW inlet E Connection to outdoor unit 6 Gas pipe 5 8 refrigerant D Connection to outdoor unit 7 Liquid pipe 3 8 refrigerant P6 Power supply cable P7 Communication cable connection between outdoor and indoor unit Installation of Indoor Unit 1 MFL69676201 영영 2017 3 8 영영 3 06 Page 15 ...

Page 16: ... for installing the device servicing and maintenance separately these costs are not subject of the warranty When you install the device into the building make sure that you build in a water drain which will serve as a water drain in case of spillage Minimal clearance from the device The device must not be installed under pipelines because there is a possibility of condensate form ing Ingress of wa...

Page 17: ...Installation Manual 17 ENGLISH Minimal clearances of the external device from walls for seamless operation maintenance and serv icing The unit should be installed straightly upward unit mm 1 MFL69676201 영영 2017 3 8 영영 3 06 Page 17 ...

Page 18: ...ections soaking in cases of high groundwater or rain water and with it intensive draining of heat into its surroundings Gas and liquid connection The pipe connection between the external and internal device can be made by laying the pipes in two ways A inside two separate ribbed protective pipes B in one joint ribbed protective pipe Connection with the outdoor unit First unscrew 2 screws of panel ...

Page 19: ... connecting the internal and external device normally STEP 2 Removal of chips Remove all chips from the part where the pipe was cut Hold the pipe downward during cleaning so that the chips do not fall into the pipe A B P16 Fill with waterproof polyurethane foam P20 Ribbed protective pipe min ɸ 75 P17 Protective pipe for external sensors or communication cables P21 The ribbed protective pipe for th...

Page 20: ...ng has to be performed with tools for edging as shown Mount the copper pipe firmly into the tool for edging Consider the dimensions listed in the table below 1 Copper pipe 2 Copper pipe held downward 3 Beveler 1 Copper pipe 2 Screw nut 1 Holder 2 Copper pipe 3 Fitting 4 Cone 5 Bracket 6 Handle 7 Holder External diameter A mm inch mm 9 52 3 8 1 5 1 7 15 88 5 8 1 6 1 8 1 MFL69676201 영영 2017 3 8 영영 3...

Page 21: ... unit Please refer to the device draw ing for additional information STEP 2 Mounting Align with the middle of the pipe and then tighten the screw nut by hand Tighten the screw nut with a torque wrench until it clicks Prescribed torques for tightening External diameter Torque mm inch Nm 9 52 3 8 34 42 15 88 5 8 65 81 1 Circular edging of the pipe of the same length 2 Circularly smooth edge 3 Interi...

Page 22: ...ctions on the device cold and hot water circulation heat conductor have to be galvanically isolated otherwise corrosion of connections can occur on the inner side of the buffer tank for DHW We recommend placing gal vanic isolators made of red brass the length of at least twice the diameter of the pipe on the con nections The DHW tank is intended for storing drinking water this is why the water has...

Page 23: ...e of the DHW L Expansion vessel L 200 5 8 12 Setting the pressure for the expansion vessel for DHW Expansion vessel for DHW is factory filled to a precharge pressure p0 with dry nitrogen The pressure must be set depending on the settings of the pressure reducing valve on the DHW supply to the building The pressure in the expansion vessel must be set according to the following formula P0 Prv 0 2 ba...

Page 24: ...cumulator is needed for hydraulic balancing ensuring un obstructed flow and defrosting A larger accumulator ensures a more balanced temperature of heating and more comfort When installing an additional larger heat accumulator it is necessary to close the ball valve in the indoor unit The location of the closing valve is indicated on the picture below C C Ball valve 1 MFL69676201 영영 2017 3 8 영영 3 0...

Page 25: ...ther cir cuits see The Hydraulic Circuit Diagram Catalogue Scheme of the heating system in hydro modules with an integrated boiler The elements on the scheme are marked in the following manner Legend of reading OC1 Mark of the element MD1 Q7 Mark of the connecting clip on the input output module MD Mark of the input output module MD1 MD2 1 MFL69676201 영영 2017 3 8 영영 3 06 Page 25 ...

Page 26: ...Digital outputs of regulation 230 V input output module MD1 and MD2 A1 A8 Analogue input input output module MD1 and MD2 D1 D9 Digital input input output module MD1 and MD2 MD1 Basic input output module 1 T1 Thermostat of heating cycle 1 T2 Thermostat of heating cycle 2 OC1 Circulation pump of heating cycle 1 OC2 Circulation pump of heating cycle 2 MV2 Mixing valve of heating cycle 2 OGK 1 Heating...

Page 27: ... pressure The settings have to be checked every 12 months Consider the maximal operational pressure of the vessel The pressure settings of the expansion vessel and filling the hating system A Filling the system B Expansion vessel C Ball valve with exhaust D Air filling valve H Height of the heating system from expansion vessel to the highest heating body in the building Psv Pressure of the safety ...

Page 28: ...ating system H m Height of the heating system Set the amount of pressure in the expansion vessel by releasing or adding dry nitrogen Record the new value of the pressure P0 on the data label Open the closing valve of the expansion vessel carefully open the vents and close the drain Filling the heating system Use the filling valve to fill the system with water of suitable quality with anti corrosio...

Page 29: ...oldering dirty pipes oil grease etc In case the impurities start accumulating in the device this can worsen the flow and heat transfer in worst cases also freezing of water in the heat exchanger and consequently the destruction of the device To protect the device from intake and accumulation of dirt in the heat exchanger you must install the strainer on the return line inlet into the device A galv...

Page 30: ...he heating system influence 0 Table Influence of various aggressive substances in the heating water on the stability of stainless copper welded plate transmitters no influence 0 danger of corrosion corrosion use not permitted The heating system has to be filled with water with the hardness between 5 dH and 10 dH Mal functions of the device because of water hardness are not covered by the warranty ...

Page 31: ...vices to the electrical network The device has to be connected to the electrical network via the power supply cut off which is installed into the electrical installation under the regulations in force The device must be connected to the mains with a cable with an appropriate diameter refer to paragraph 7 for more detailed information The electrician defines the cable diameter according to the inst...

Page 32: ...ET button Thermal protection of the electrical heater 9 Place of grounding the plated braided communication cable 4 Connecting clips of external devices 10 Communication with outdoor unit and inter nal expansion unit TT3003 5 Connecting clips of the power line 11 Connecting clips neutral conductor 6 WEB module Option 12 Electrical contactor Installation of Indoor Unit 1 MFL69676201 영영 2017 3 8 영영 ...

Page 33: ...spot functional earthing 1 Process module PLC 5 WM connection with the WEB module factory made 2 TE2 connection with the input output module factory made 6 RQ2 connection for resetting the alarm factory made 3 TS connection of the spatial corrector KT 1 2 factory made 7 RQ1 connection of the signal for reporting an alarm optional 4 TEX communication with the ODI Gateway module PI485 Installation o...

Page 34: ...for the spatial correctors optional A B Communication GND 12 V Power supply X5 Connecting terminal for communication with external module Gateway PI485 in WPLV device BUS A BUS B Communication GND Power supply 5 Web module TW MODBUS Communication with PLC TX MODUBUS Not in use Ethernet Internet Ethernet connection PLC Process module WM Communication with Web module TEX Communication with outdoor u...

Page 35: ...Installation Manual 35 ENGLISH Installation of Indoor Unit 1 MFL69676201 영영 2017 3 8 영영 3 07 Page 35 ...

Page 36: ...g valve X3 Q7 N 3 x 0 75 mm2 Circulation pump of heating cycle 1 optional Q8 N 3 x 0 75 mm2 Circulation pump of heating cycle 2 optional N Q9 Q10 3 x 0 75 mm2 Mixing valve of heating cycle 2 optional A7 GND 2 x 0 75 mm2 Temperature sensor of mixing heating cycle 2 optional X4 D8 GND 2 x 0 75 mm2 Switch for heating cooling optional D7 GND 2 x 0 75 mm2 Thermostat of mixing cycle 2 optional D6 GND 2 ...

Page 37: ...Installation Manual 37 ENGLISH TW TX Ethernet 5 Installation of Indoor Unit 1 MFL69676201 영영 2017 3 8 영영 3 07 Page 37 ...

Page 38: ...a small hole in the thin rubber membrane for each cable 2 Push the cable through making sure the membrane isn t damaged and that the membrane tightly wraps the cable 3 Pull the cable back for approximately 5 mm to make a positive seal Make sure only one cable is fed through each cable gland hole to ensure a proper water tightness seal Installation of Indoor Unit 1 MFL69676201 영영 2017 3 8 영영 3 07 P...

Page 39: ...is manual Multi strand flexible cables must be connected to the indoor unit terminal blocks with crimped end sleeves Solid core wires do not need crimped end sleeves The device comes with an electrical heater 3 x 2 kW The power supply is connected according to your needs a 230 V 50 Hz on the connecting clips L1 N and PE Connecting terminals of the supply cable Clip PE yellow green cable clip N blu...

Page 40: ...tion between the indoor and outdoor For the dimensions of the communication cable see technical data It is important to correctly connect the cable to terminal block X5 The communication cable connects the external device to the terminal terminals X5 on the indoor unit It is necessary to connect the terminals BUS A BUS B and GND In the case of a prefabricated FTP cable connect cable 1 2 to BUS A 2...

Page 41: ...Installation Manual 41 ENGLISH I Indoor unit O Outdoor unit PI485 Installation of Indoor Unit 1 MFL69676201 영영 2017 3 8 영영 3 07 Page 41 ...

Page 42: ...A2 A3 5V 5V GND A4 A5 5V 5V GND A6 A7 5V 5V GND A8 SK Q1 Q2 Q3 230V 230V 230V SK Q4 Q5 Q6 230V 230V 230V SK Q7 Q8 Q9 230V 230V 230V SK Q10 Q11 Q12 230V 230V 230V MD1 MBIO12 PWM JMP 4BBBB BBBB 4 3 2 1 0 BBBB 4BBBB 4 3 2 1 0 7 7 7 CD 7 7 7 7 CD 7 Installation of Indoor Unit 1 MFL69676201 영영 2017 3 8 영영 3 07 Page 42 ...

Page 43: ... electrical heater 2 Tree way valve for switching between heating and DHW 3 Basic input output module MD1 4 D4 Flow switch 5 Web module OPTIONAL TW Modbus Communication with PLC TX Modbus Not in use Ethernet Internet connection 6 A6 Temperature sensor of the supply pipe 7 Q3 Main circulation pump 8 A1 Temperature sensor of the return line 9 Process module PLC WM Communication with the Web module T...

Page 44: ...ICS KT 1 2 Spatial corrector KT 1 2 optional A B Communication 12 V GND Power supply Grounding of the plated cable Functional earthing PLC Process module RQ1 ALARM dry contact RQ2 RESET dry contact WM Communication with web module TEX MODBUS communication with outdoor unit PI485 Gateway TS Communication with the spatial corrector TE2 Communication with the basic module MD1 X6 Connecting clip of th...

Page 45: ...H Pump capacity AHNW16606B0 Pump model Yonos PARA RS 25 7 0 PWM1 Ku Selecting a water flowrate outside the curves can cause damage to or malfunction of the unit Installation of Indoor Unit 1 MFL69676201 영영 2017 3 8 영영 3 07 Page 45 ...

Page 46: ...dditional charge of the re frigerant is required according to the table Example If 16kW model is installed at a distance of 50m 1 700g of refrigerant should be added according to following formula 50 7 5 x 40g 1 700g 2 Rated capacity of the product is based on standard length and maximum allowable length is based on the product reliability in the operation 3 Improper refrigerant charge may result ...

Page 47: ...edicated flaring tool for R 410A refrigerant as shown below Firmly hold copper tube in a bar or die as indi cated dimension in the table above Step 5 Check Compare the flared work with right figure If flare is seemed to be defective cut off the flared section and do flaring work again Preparation for Piping Preparation for piping is five steps As main cause of refrigerant leakage is defects in fla...

Page 48: ...are expressed in below figure The pipes cannot be connected in downward direction Step 1 Pre tightening Align the center of the pipes and sufficiently tighten the flare nut by hand Step 2 Tightening Tighten the flare nut with a wrench Tightening torque is as following Torque wrench Indoor unit tubing Open end wrench fixed Connection pipe Flare nut Indoor unit tubing Flare nut Pipings mm inch kgf m...

Page 49: ...sects or small animals enter the outdoor unit it may cause a short circuit in the electrical box Finally form the pipes by wrapping the con necting portion of the indoor unit with insulation material and secure it with two kinds of vinyl tape Ensuring thermal insulation is very impor tant mm inch kgf m 6 35 1 4 1 8 2 5 9 52 3 8 3 4 4 2 12 7 1 2 5 5 6 6 15 88 5 8 6 6 8 2 19 05 3 4 9 9 12 1 Outside ...

Page 50: ...fied persons in order to avoid a hazard Terminal Specification of Power Cable and related Cautions Use round pressure terminals for connections to the power terminal block When none are available follow the instructions below Do not connect wiring of different thicknesses to the power terminal block Slack in the power wiring may cause abnormal heat When connecting wiring which is the same thicknes...

Page 51: ...ower supply and heater supply Wiring Procedure for Power Cable for outdoor unit only Step 1 Disassemble the side panel from the outdoor unit by loosing screws Step 2 Connect Power cable to Main Power Terminal See below figure for detailed information When connecting earth cable the diameter of cable should be bigger than 1 6mm2 to secure safety The earth cable is connected to the terminal block wh...

Page 52: ...ufficient 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the relation between cable length and thickness 8 Provide an RCCB when the installation place is wet or moist 9 The following troubles would be caused by abnormal vol...

Page 53: ...accessory After you assemble Gateway PI485 Modbus Converter on the C box Outdoor Unit Connect Cables CN OUT CN PWR After laying the plated cable between Indoor unit and Outdoor unit use three cables you connect to the connection clips Bus_A Bus_B GND on the Gateway PI485 Modbus Converter module Gateway PI485 Modbus Converter is located on the Outdoor Unit as shown on the picture below Gateway PI48...

Page 54: ...e GND 3 BUS A 1 BUS B 2 Communication cable Not in use Field install PI485 Modus Converter 1 L 2 N 1 L Indoor Power supply N L Switch 2 N 3 Power cable Power cable Outdoor Power supply N L Switch Fuse Do not connect cable at terminal block where plate name is To Indoor Unit 1 MFL69676201 영영 2017 3 8 영영 3 07 Page 54 ...

Page 55: ...ape narrow Pipe Wrap with vinyl tape wide Taping Procedure 1 Tape the pipes connecting cable and power cable from down to up If taping direction is up to down rain drop may be sinking into the pipes or cables 2 Secure the taped pipe along the exterior wall using saddle or equivalent 3 Trap is required to prevent water from entering into electrical parts Trap is required to prevent water from enter...

Page 56: ...ylinder to this service port with charge hoses Be sure to use a manifold valve for leak age test If it is not available use a stop valve for this purpose The Hi knob of the mani fold valve must always be kept close Pressurize the system to no more than 3 0 Mpa with dry nitrogen gas and close the cylinder valve when the gauge reading reached 3 0 Mpa Next test for leaks with liq uid soap To avoid ni...

Page 57: ...ve stem of gas side valve counter clock wise to fully open the valve 3 Loosen the charge hose connected to the gas side service port slightly to release the pressure then re move the hose 4 Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench This process is very impor tant to prevent leakage from the system 5 Replace the val...

Page 58: ...Whenever adjusting DIP switch turn off electric power supply to avoid electric shock If change Dip switch on operating it is not able to operate as setting You must turn off power before setting DIP switch After setting turn on power General Information Dip Switch Setting value DIP Switch Setting ON is selected OFF is selected ON is selected in No 5 6 Model AHUW146A2 System Set Up 1 MFL69676201 영영...

Page 59: ...ugh the hole of the air purge If water does not splash out when the tip at the top of the hole is pressed then air purging is not completed yet If well purged the water will splash out like fountain Be careful when testing air purge Splashed water may make your dress wet Two shut off valves located at the end of water inlet pipe and water outlet pipe of the indoor unit should be open By pass valve...

Page 60: ...ls i e Leakage of the system and as a result there is not enough water flow the display displays a warning of flow malfunction Caution flow Cleaning of the heat exchangers Cleaning of the heating system water section Residue of grease and sealants in pipes can pollute the condenser of the device up to a point where cleaning is necessary In this case the authorized person should perform the cleanin...

Page 61: ...easiest way to determine whether the thermal protection of the electrical heater is turned off is to turn on the operation of the auxiliary source on the control unit Determine if you can feel by hand the difference between the supply line and the return line The electrical heater works if the supply line is warmer How to activate the auxiliary source is explained in the manual In case the electri...

Page 62: ...sult of refrig erant accumulation in the internal compressor If the insulation resistance is less than 2 0 MΩ turn on the main power supply n Calculate refrigerant concentration Refrigerant concentration Total amount of replenished refrigerant in refrigerant facility kg Capacity of smallest room where indoor unit is installed m3 Limiting concentration 0 44kg m3 R410A Limiting concentration is the ...

Page 63: ...Electronics Inc EU Representative Krijgsman 1 1186 DM Amstelveen The Netherlands Manufacturer LG Electronics Inc EU Representative Krijgsman 1 1186 DM Amstelveen The Netherlands 1 MFL69676201 영영 2017 3 8 영영 3 06 Page 100 ...

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