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Manuals
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LG Manuals
Heating System
MULTIV III
Service manual
LG MULTIV III Service Manual
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Contents
Table of Contents
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Table of Contents
Table of Contents
Safety Precautions
Part 1 General Information
Model Names
External Appearance
Nomenclature
Part 2 HR Units
Hr Units
Specifications
Parts Functions
Dimensions
Piping Diagrams
Wiring Diagrams
Electric Characteristics
Functions
Part 3 PCB Setting
Pcb Setting
Switch for Setup of HR Unit
Unit PCB
Method for Addressing of Indoor and HR Unit
Flow Chart for Auto-Addressing of Indoor and HR Unit
Example of Manual Valve Addressing(Non-Zoning Setting)
Example of Manual Valve Addressing(Zoning Setting)
Example of Checking Valve Address
Identification of Manual Valve ID (Address)
Method of Checking the Pipe Detection Result at Outdoor Unit
Setting Method of Master Indoor Unit in Zoning
Part 4 Trouble Shooting Guide
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Table of Contents
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Part 3 Pcb Setting
3
Unit Pcb
4
Part 4 Trouble Shooting Guide
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Heat Recovery Unit
SERVICE MANUAL
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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Table of Contents
2
Hr Units
10
Pcb Setting
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Table of Contents
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This manual is also suitable for:
Multiv prhr041
Multiv prhr041a
Multiv prhr031
Multiv prhr031a
Multiv prhr021
Multiv prhr021a
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