LG Multi V PRHR041 Service Manual

Heat recovery unit (exploded view)
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Heat Recovery Unit

SERVICE MANUAL

(Exploded View)

MODEL : PRHR041/PRHR041A
PRHR031/PRHR031A
PRHR021/PRHR021A
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only
http://biz.lgservice.com
R410A

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  Summary of Contents for LG Multi V PRHR041

  • Page 1: Service Manual

    Internal Use Only http://biz.lgservice.com Heat Recovery Unit R410A SERVICE MANUAL (Exploded View) MODEL : PRHR041/PRHR041A PRHR031/PRHR031A PRHR021/PRHR021A CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.
  • Page 2: Table Of Contents

    3. Dimensions ........................5 4. Piping Diagrams ......................6 5. Wiring Diagrams ......................7 6. Electric Characteristics ....................8 7. Exploded View .........................9 - 2 - Copyright ©2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 3: Specifications

    1. Voltage range : Units are suitable for sue on electrical systems where voltage supplied to units terminals is not below or above listed range limits. 2. Maximum allowable voltage unbalance between phases is 2% - 3 - Copyright ©2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 4: Parts Functions

    High pressure gas pipe Subcooling EEV Balancing valve Gas pipe Liquid pipe2 Liquid bypass valve Solenoid assembly 1 Solenoid assembly 2 - 4 - Copyright ©2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5: Dimensions

    Dimensions 3. Dimensions 3.1 HR Units - 5 - Copyright ©2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 6: Piping Diagrams

    Ⓒ : To prevent liquid charging between high pressure gas valve and HR unit at cooling mode Ⓓ : To be controlled the pressure between high and low pressure pipe during operation switching - 6 - Copyright ©2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7: Wiring Diagrams

    Setting, the address of indoor_10(When manual address) SW04M Setting, the address of indoor_1(When manual address) SW05M Setting, HR unit number - 7 - Copyright ©2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8: Electric Characteristics

    (Next lower standard fuse rating. Minimum 15A) 4. Select wire size based on the MCA. 5. Instead of fuse, use Circuit Breaker. - 8 - Copyright ©2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9: Exploded View

    PVC : blue Thermistor 2 263230 SC in heatproof PVC : white Thermistor 3 Liquid heatproof PVC : black - 9 - Copyright ©2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 PVC : blue Thermistor 2 263230 SC in heatproof PVC : white Thermistor 3 Liquid heatproof PVC : black - 10 - Copyright ©2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 PVC : blue Thermistor 2 263230 SC in heatproof PVC : white Thermistor 3 Liquid heatproof PVC : black - 11 - Copyright ©2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 AUGUST, 2011 P/NO : MFL67400004...