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LG Therma V R32, Installation Instructions Manual, Page: 21 / 39

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LG Therma V R32 Installation Instructions Manual Download Page 21

Installation Schematic. 

 

21 

Therma V R32 Installation Instructions.  

DHW with 2 Heat Pumps 

– 12, 14 & 16kW. 

 

Summary of Contents for Therma V R32

Page 1: ...R32 Monobloc April 2020 Installation Instructions Therma V R32 Generation 3 ...

Page 2: ...erma V R32 Installation Instructions Unpack the equipment carefully and check all components are complete Layout all components so each may be identified Please retain this installation instruction document for future reference ...

Page 3: ...Outdoor Installation Bill of Materials 3 Therma V R32 Installation Instructions The LG controller comes packed within the Heat Pump ...

Page 4: ...y be pre fix ed to the tank or may be wall mounted The LG controller has the ability to perform the sterilization process via the Tank Kit Relay date time temperature and hold parameters may be set The Tank sensor has a 10m cable this must be connected to the printed circuit board within the outdoor unit Shown in the wiring diagram shown below PHLTB DHW sensor PHRSTA0 Relay Box Link cable approx 4...

Page 5: ...n valves on the back of the unit Recommend Additional 400 micron Y strainer external with isolation vales on either side Use a through wall insulation kit this allows for thermal insulation within the wall All pipework to be 28mm copper or 32mm multi layer composite pipe Allow for condensate to feed into a soakaway tray or soil stack Recommend Magnetic Cleaner Flow Setter Water volume 25L for sing...

Page 6: ...32 Installation Instructions Heating Only 5 7 9kW It is possible to use the LG controller as a room thermostat in this application control of the pump after the buffer tank will be done by the heat pump TB_EXT_PUMP Please see note below ...

Page 7: ...2 Installation Instructions Heating Only 12 14 16kW Please see note below It is possible to use the LG controller as a room thermostat in this application control of the pump after the buffer tank will be done by the heat pump TB_EXT_PUMP ...

Page 8: ...Installation Wiring 8 Therma V R32 Installation Instructions Heating Only 5 7 9 12 14 16kW TB_EXT_PUMP ...

Page 9: ...Installation Schematic 9 Therma V R32 Installation Instructions DHW Heating with 1 Zone 5 7 9kW ...

Page 10: ...Installation Schematic 10 Therma V R32 Installation Instructions DHW Pre Plumb Heating with 1 Zone 5 7 9kW ...

Page 11: ...Installation Schematic 11 Therma V R32 Installation Instructions DHW Heating with 1 Zone 12 14 16kW ...

Page 12: ...Installation Schematic 12 Therma V R32 Installation Instructions DHW Pre Plumb Heating with 1 Zone 12 14 16kW ...

Page 13: ...Installation Schematic 13 Therma V R32 Installation Instructions DHW Heating with 2 Zone s 5 7 9kW ...

Page 14: ...Installation Schematic 14 Therma V R32 Installation Instructions DHW Pre Plumb Heating with 2 Zone s 5 7 9kW ...

Page 15: ...Installation Schematic 15 Therma V R32 Installation Instructions DHW Heating with 2 Zone s 12 14 16kW ...

Page 16: ...Installation Schematic 16 Therma V R32 Installation Instructions DHW Heating Rad s UFH 2 Zone 12 14 16kW ...

Page 17: ...Installation Schematic 17 Therma V R32 Installation Instructions DHW Pre Plumb Heating with 2 Zone s 12 14 16kW ...

Page 18: ...Installation Wiring 18 Therma V R32 Installation Instructions DHW Heating with 2 Zone s 12 14 16kW DHW Heating 5 7 9 12 14 16kW ...

Page 19: ...Installation Schematic 19 Therma V R32 Installation Instructions DHW Boiler with Two Heating Zone s 12 14 16kW ...

Page 20: ...n Wiring 20 Therma V R32 Installation Instructions DHW Heating with 2 Zone s 12 14 16kW Boiler DHW Heating 5 7 9 12 14 16kW Boiler LR Live Return LS Live Supply TB_EXT_BOILER Within installer settings Change to ON ...

Page 21: ...Installation Schematic 21 Therma V R32 Installation Instructions DHW with 2 Heat Pumps 12 14 16kW ...

Page 22: ...Installation Wiring 22 Therma V R32 Installation Instructions DHW 2 Heat Pumps 12 14 16kW ...

Page 23: ...Installation Instructions Installation Mains Power Cable RCD Type C Rotary Enclosed Isolation switch IP65 Mandatory electricity meter fitted within an enclosed box Ensure power cable does not touch refrigerant pipework ...

Page 24: ...Installation Terminal Block 1 24 Therma V R32 Installation Instructions Honeywell 3 Way Valve V4044c 2 Wire Terminal 8 L Port A DHW Cylinder Port B Buffer Tank 230V when DHW demand Terminal 10 Neutral ...

Page 25: ...Installation Terminal Block 3 25 Therma V R32 Installation Instructions 230V 2 Pole Relay Please see wiring diagram Slides 26 27 ...

Page 26: ...26 Therma V R32 Installation Instructions Installation Wiring Relay Example ...

Page 27: ...27 Therma V R32 Installation Instructions Installation Wiring Relay Example ...

Page 28: ...ed later Possible settings are displayed as below Temperature 5 10 15 20 25 Default 5 The values shown are not actual temperature setting but an offset that can be applied to the def ault value of 0 as shown in the previous slide When the function is activated the default valu e is 5 Example if setting 10 is used entering water temp for judgment is reduced from 15 to 5 for protection starting ente...

Page 29: ...orrect amount of antifreeze additive is applied to the water system to protect the product against water temperatures below 0 The correct volume of water contained in the system should be calculated with six additional liters added for the AWHP product as per the installation instructions Guidance from this instruction is provided below ...

Page 30: ...Installation Antifreeze Solution Temp 30 Therma V R32 Installation Instructions Anti freezing temperature setting is available in installer mode Change the value from 5 to 10 ...

Page 31: ...Central Controller 31 Therma V R32 Installation Instructions ...

Page 32: ...HW water tank sensor into the back of the unit shown in the diagram Connect the red connector to the main PCB Top right hand side of unit Terminal CN_TH4 the 7th terminal down from the top right Insert copper sensor into dry pocket tube of cylinder The sensor can be cut and extended cable no bigger than 0 75mm2 ...

Page 33: ...nk Heater 33 Therma V R32 Installation Instructions Wire CN_B HEAT A to Top Terminal s 6 7 Wire from Heat Pump 6 7 Terminals to DHW Tank Kit Terminals 5 6 Wire from DHW Tank Kit Terminals 3 4 to immersion element in Tank ...

Page 34: ...n To the right Room Thermostat Control Field Supplied Dip switch 8 On To the right Antifreeze Logic Dip switch 2 On To the right Note Please ensure the heat pump is turned off before changing dip switches When dip switch 8 is turned on ALL HEATING functions are locked from the controller ...

Page 35: ...Instructions Press the Right arrow to select Menu Press Ok Settings is shown Press and Hold the UP arrow button for 3 seconds 4 square boxed are shown Insert the Password Shown in the bottom right corner Software Version Example 3 0 3 1 or 3 0 5 1 Software Version ...

Page 36: ...se the strainers will need to be cleaned Recommendation once the unit has been installed advise the customers that it is quite likely and normal for a CH14 alarm to occur in the first two weeks This will give the customer reassurance if and when the fault does arise If the cause was air then a simple power reset could allow the system to continue working as normal once the pocket of air has made i...

Page 37: ...Configuration Installer Setting 37 Therma V R32 Installation Instructions ...

Page 38: ...Configuration Installer Setting 38 Therma V R32 Installation Instructions Rads 50degC UFH 40degC ...

Page 39: ...39 Therma V R32 Installation Instructions ...

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