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LG MFL67478328 Service Manual

Thermav system ah series
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SERVICE MANUAL
AIR
CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
System
AH Series
P/NO : MFL67478328
www.lg.com

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Summary of Contents for LG MFL67478328

  • Page 1 SERVICE MANUAL CONDITIONER Please read this manual carefully before operating your set and retain it for future reference. System AH Series P/NO : MFL67478328 www.lg.com...

  • Page 2: Specification

    2. * : This information is given as a guideline about the connection of sanitary water tank 3. ** : This specification is data when electric heater is not used. - 2 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 3 2. * : This information is given as a guideline about the connection of sanitary water tank 3. ** : This specification is data when electric heater is not used. - 3 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 4 2. * : This information is given as a guideline about the connection of for purpose of improvement. sanitary water tank - 4 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 2. * : This information is given as a guideline about the connection of for purpose of improvement. sanitary water tank - 5 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 6 2. Wiring cable size must comply with the applicable local and national code. 3. The specification may be subject to change without prior notice for purpose of improvement. - 6 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 2. Wiring cable size must comply with the applicable local and national code. 3. The specification may be subject to change without prior notice for purpose of improvement. - 7 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 2. Wiring cable size must comply with the applicable local and national code. 3. The specification may be subject to change without prior notice for purpose of improvement. - 8 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 2. Wiring cable size must comply with the applicable local and national code. 3. The specification may be subject to change without prior notice for purpose of improvement. - 9 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 10: Function Table

    * TH8 : Refer to 'Chapter 8. Piping Diagram' of 'Part 2. Indoor Unit (Hydro kit)' * Accessory: Installed at field, ordered and purchased separately by the corresponding model name, supplied with separate package. - 10 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 * TH8 : Refer to 'Chapter 8. Piping Diagram' of 'Part 2. Indoor Unit (Hydro kit)' * Accessory: Installed at field, ordered and purchased separately by the corresponding model mane, supplied with separate package. - 11 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 * TH8 : Refer to 'Chapter 8. Piping Diagram' of 'Part 2. Indoor Unit (Hydro kit)' * Accessory: Installed at field, ordered and purchased separately by the corresponding model mane, supplied with separate package. - 12 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 * TH8 : Refer to 'Chapter 8. Piping Diagram' of 'Part 2. Indoor Unit (Hydro kit)' * Accessory: Installed at field, ordered and purchased separately by the corresponding model mane, supplied with separate package. - 13 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 O : Applied, X : Not applied, – : No relation * Accessory: Installed at field, ordered and purchased separately by the corresponding model name, supplied with separate package. - 14 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 Warning : Selecting a water flowrate outside the curves can cause damage to or malfunction of the unit. : Operation cutoff range - 15 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 Warning : Selecting a water flowrate outside the curves can cause damage to or malfunction of the unit. : Operation cutoff range - 16 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 17: Piping Diagrams

    4. Piping Diagrams - 17 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 (sold separately) MAL SYSTEM - To utilized hot water heated by SOLAR THERMAL SYSTEM, end-user must buy LG AWHP Solar-Kit. - 18 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: Wiring Diagrams

    5. Wiring Diagrams Indoor Unit Model : AHNW096A0, AHNW126A0, AHNW146A0, AHNW166A0 - 19 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 Indoor Unit Model : AHNW09606A0, AHNW16606A1, AHNW09604A1, AHNW09606A1 - 20 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 Indoor Unit Model : AHNW09A06A0, AHNW09806A0 , AHNW09A06A1, AHNW09806A1,AHNW16A06A1,AHNW16806A1 - 21 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 Outdoor Unit : AH-W126A0, AH-W146A0, AH-W166A0 - 22 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 Outdoor Unit : AH-W096A0 - 23 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 24 Outdoor Unit : AHUW096AN - 24 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 Outdoor Unit : AHUW096A1 - 25 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 Outdoor Unit : AHUW128A1, AHUW148A1, AHUW168A1 - 26 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 27: External Wiring Diagram

    6. External Wiring Diagram Indoor Unit Model : AHNW096A0, AHNW126A0, AHNW146A0, AHNW166A0, AHNW09606A0 - 27 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 28 Indoor Unit Model : AHNW09A06A0, AHNW09806A0 - 28 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 Wiring Diagram : Indoor and Outdoor Unit(Including Field wiring) (Indoor : Electric Heater 1Ø, Outdoor : 1Ø) - 29 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 30 Wiring Diagram : Indoor and Outdoor Unit(Including Field wiring) (Indoor : Electric Heater 3Ø, Outdoor : 1Ø) - 30 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 31 Wiring Diagram : Indoor and Outdoor Unit(Including Field wiring) (Indoor : Electric Heater 3Ø 220V, Outdoor : 3Ø) - 31 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 32 Wiring Diagram : Indoor and Outdoor Unit(Including Field wiring) (Indoor : Electric Heater 3Ø 380-415V, Outdoor : 3Ø) - 32 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 33: Exploded View

    Note) * Please ensure GCSC since the replacement parts may be changed depending upon the buyer's request. Please check the correct parts in View RPL(Replacement Part List) on GCSC. (GCSC Website http://biz.Lgservice.com,) - 33 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 34 263230B 552207 263230C 165020 269300A 269300B 152141 W6640C 566001A 235042 266007 W52240 566001B W6640B 158580 267110 130411 265020 148382 - 34 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 349001 566001A 165020 269300A 269300B W6640C 552207 235042 566001B 566001A 753000 W52240 152141 W6640B 130411 158580 267110 265020 148382 - 35 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 36 340090 148391 263230C 135500 269300 165020 349001 552207 235042 566001 266007 W52240 W6640C W6640B 158580 130411 152141 267110 552120 - 36 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 37 Note) * Please ensure GCSC since the replacement parts may be changed depending upon the buyer's request. Please check the correct parts in View RPL(Replacement Part List) on GCSC. (GCSC Website http://biz.Lgservice.com,) - 37 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 38 Note) * Please ensure GCSC since the replacement parts may be changed depending upon the buyer's request. Please check the correct parts in View RPL(Replacement Part List) on GCSC. (GCSC Website http://biz.Lgservice.com,) - 38 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 39 Note) * Please ensure GCSC since the replacement parts may be changed depending upon the buyer's request. Please check the correct parts in View RPL(Replacement Part List) on GCSC. (GCSC Website http://biz.Lgservice.com,) - 39 - Copyright ©2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 40 This product qualifies for ENERGY STAR in the “factory default (Home Use)” setting. Changing the factory default settings or enabling other features may increase power consumption that could exceed the limits necessary to quality for ENERGY STAR.