LG MULTI V PRHR022 Installation Manual Download Page 21 | Manualshive

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Summary of Contents for MULTI V PRHR022

Page 1: ...se 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 ENGLISH ESPAÑOL ...

Page 2: ...condi tioner is used for many hours Clean the air filter once every 2 weeks Dust and impurities collected in the air filter may block the air flow or weaken the cooling dehumidifying functions For your records Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes Write the model number and the serial number here Model number Serial number You c...

Page 3: ...h Only a qualified experienced electrician should attempt to wire this system Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked Highly dangerous electrical voltages are used in this system Carefully refer to the wiring diagram and these instructions when wiring Improper connections and inadequate grounding can cause accidental injury or death Grou...

Page 4: ...led product always contact a dealer or an Authorized Service Center There is risk of fire electric shock explosion or injury Do not install remove or re install the unit by your self customer There is risk of fire electric shock explosion or injury Do not store or use flammable gas or com bustibles near the HR Unit There is risk of fire or failure of product Use the correctly rated breaker or fuse...

Page 5: ...N STRUCTIONS 6 FEATURES 7 INSTALLATION PART 8 INSTALLATION 8 Selection of the best location 8 Dimensional drawings 10 HR Unit Installation 12 Insulation 13 Wiring Connection 14 Setup the switch of HR Unit 19 COIL EXCHANGING METHOD 20 JOINT METHOD OF HR UNIT TABLE OF CONTENTS ...

Page 6: ...40 40 Net Weight kg 15 2 17 2 19 2 lbs 33 5 37 9 42 3 Dimensions WxHxD mm 801x218x632 801x218x632 801x218x632 Inch 31 5x8 6x24 9 31 5x8 6x24 9 31 5x8 6x24 9 Casing Galvanized steel plate Connecting Pipes Indoor side Liquid Pipe mm Ø9 52 Ø6 35 Gas Pipe mm Ø15 88 Ø12 7 Outdoor side Liquid mm Ø9 52 Ø12 7 Ø15 88 Low Pressure mm Ø22 2 Ø28 58 Ø28 58 High Pressure mm Ø19 05 Ø22 2 Ø22 2 Sound Absorbing In...

Page 7: ...pe Low pressure Liquid pipe HR unit reducer PRHR022 OD22 2 7 8 Ø19 05 3 4 Ø15 88 5 8 Ø6 35 1 4 OD9 52 3 8 OD19 05 3 4 Ø15 88 5 8 OD12 7 1 2 Ø9 52 3 8 Ø12 7 1 2 OD22 2 7 8 Ø19 05 3 4 Ø15 88 5 8 OD15 88 5 8 Ø12 7 1 2 OD12 7 1 2 Ø9 52 3 8 PRHR032 PRHR042 OD19 05 3 4 Ø15 88 5 8 OD28 58 1 1 8 Ø22 2 7 8 Ø19 05 3 4 OD15 88 5 8 Ø12 7 1 2 Ø9 52 3 8 OD15 88 5 8 Ø12 7 1 2 Unit mm ...

Page 8: ...l spattering vapor spray or high frequency electric noise is expected Install the unit at a place in which it is not affected by operation noise Installation within cell such as meeting room etc may disturb business due to noise Place where refrigerant piping drain piping and electrical wiring works are easy Dimensional drawings Inspection door servicing space 481 345 300 more 300 more 300 more 45...

Page 9: ...HR042 Ø12 7 Brazing connection PRHR032 Ø9 52 Brazing connection 4 Indoor unit Gas pipe connec tion port Ø15 88 Ø12 7 Brazing connection Ø15 88 Ø12 7 Brazing connection 5 Indoor unit Liquid pipe con nection port Ø9 52 Ø6 35 Brazing connection Ø9 52 Ø6 35 Brazing connection 6 Control box 7 Hanger metal Suspension bolt M10 or M8 Suspension bolt M10 or M8 NOTE Be sure to install the inspection door at...

Page 10: ...bolts Old building New building CAUTION Tighten the nut and bolt to prevent unit falling 1 Using an insert hole in anchor hang the suspension bolt 2 Install a hexagon nut and a flat washer lo cally procured to the suspension bolt as shown in the figure in the bottom and fit the main unit to hang on the hanger metal 3 After checking with a level that the unit is level tighten the hexagon nut The ti...

Page 11: ... Before brazing work remove gas in the HR Unit by cutting the three pipes in the small cir cles on the figure If not it may cause injuries Remove the caps before connecting pipes Ceiling Top side Top side Top side Liquid pipe Low pressure gas pipe High pressure gas pipe Gas pipe Ø15 88 Ø12 7 Liquid pipeØ9 52 Ø6 35 Brazing Type Liquid pipe Liquid pipe Low pressure gas pipe Low pressure gas pipe Hig...

Page 12: ...require ment Refrigerant pipe Local supply Thermal insulator for refrigerant pipe Local supply Overlap with thermal insulator for piping Make sure that there is no Thermal insulator for refrigerant pipe Local supply clearance here Not connected pipe Always seal up the tip of unused pipe by brazing Thermal insulator for refrigerant pipe Local supply Make sure that there is no clearance here ...

Page 13: ...minal Block HR Unit L L1 N L2 Terminal Block HR Unit A B HR UNIT POWER INPUT Master Outdoor Unit SODU B SODU A IDU B IDU A CEN B CEN A DRY1 DRY2 GND 12V Lock nut Conduit L L1 N L2 Power Supply High Voltage 220 240V A B Communi cation WARNING Loose wiring may cause the terminal to overheat or result in unit malfunction A fire hazzard may also exist Therefore be sure all wiring is tightly connected ...

Page 14: ...group setting No 6 Valve group setting No 7 Use only in factory production preset to OFF Zoning setting ON No 8 Use only in factory production preset to OFF 1 Selection of the method for pipe detection of an HR unit Auto Manual 2 Setting the zoning control Auto Manual Switch No 1 Off Switch No 1 On DIP S W setting Normal control SW01M Zoning control SW01M Turn the dip switch of the zoning branch o...

Page 15: ...d No 3 pre adjusted as above in the factory WARNING If you want to use a PRHR032 for 2 branches HR unit after closing the 3rd pipes set the dip switch for 2 branches HR unit If you want to use a PRHR042 for 3 branches HR unit after closing the 4th pipes set the dip switch for 3 branches HR unit If you want to use a PRHR042 for 2 branches HR unit after closing the 3rd and 4th pipes set the dip swit...

Page 16: ...ity indoor unit Large capacity indoor unit 1 2 3 4 NOTE If the large capacity indoor units are installed below Y branch pipe should be used Models Low Pressure Gas Pipe Liquid pipe High Pressure Gas Pipe ARBLB03321 413 390 I D19 05 I D19 05 I D19 05 I D12 7 I D12 7 70 I D15 88 I D15 88 I D25 4 I D25 4 O D25 4 80 110 83 1 2 3 3 O D19 05 O D19 05 1 2 I D22 2 I D22 2 I D22 2 I D28 58 I D12 7 I D12 7 ...

Page 17: ...he central control address of the connected in door unit SW01M selection of the valve to address SW03M increase in the digit of 10 of valve address SW04M increase in the last digit of valve address Prerequisite for manual valve addressing central control address of each indoor unit must be preset differently at its wired remote control 1 2 3 4 1 2 3 4 1 2 3 4 A B A B A B SW01M S W No Setup No 1 Ma...

Page 18: ...ress SW05M Rotary S W Prerequisite for manual valve addressing central control address of each indoor unit must be preset differently at its wired remote control SW01M S W No Setup No 1 Manual addressing of valve 1 No 2 Manual addressing of valve 2 No 3 Manual addressing of valve 3 No 4 Manual addressing of valve 4 SW03M SW03M Increase in the digit of 10 of valve address SW04M SW04M Increase in th...

Page 19: ...efer to the label concerned the solenoid coil s position attached on the cover inside NOTICE Be sure that system power off before exchanging the coil Check the position of the sole noid coil with the label at tached on the cover inside when abnormal noise is heard loudly during operation Branch 4 Bypass CN11 Branch 4 Low CN07 Branch 3 Low CN06 Branch 2 Low CN05 Branch 1 Low CN04 Bypass CN12 Branch...

Page 20: ...neighboring outlets within one HR unit JOINT METHOD OF HR UNIT Joint Method is required when use indoor unit that exceed 54k is installed In Joint Method two neighboring outlets of one HR unit are linked by Y branch pipe and connected to one indoor unit 1 st 2 HR Unit 1 st HR Unit 1 st HR Unit 1 st HR Unit nd HR Unit 2nd HR Unit 2nd HR Unit 2nd HR Unit 1 2 3 4 B8 96k 28k BG 1 2 3 4 B8 76k 21k BH 1...

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