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Samsung AQV12NSAN Service Manual

Samsung AQV12NSAN
93 pages
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Refer to the service manual in the GSPN(see the rear cover) for the more information.
AIR CONDITIONER CONTENTS
SPLIT-TYPE AIR CONDITIONER
INDOOR UNIT OUTDOOR UNIT
Basic : AQV12NSAN
Model: AQV09UGAN
AQV12UGAN
Model Code : AQV09UGAN AQV09UGAX
AQV12UGAN AQV12UGAX
Q
good' sleep Mode
Q
Catechin Filter
Q
Silver Nano Evaporator
Q
Deodorizing Filter
Q
Anti-Bacterial Cross Fan

Table of Contents

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Samsung AQV12NSAN Specifications

General IconGeneral
TypeSplit system
Compressor typeRotary
Hose length (max)15 m
Remotely operatedYes
Cooling capacity (max)11942 BTU/h
Dehumidifying capacity1.4 l/h
Heating capacity (max)13649 BTU/h
Cooling capacity in watts (max)3500 W
Heating capacity in watts (max)4000 W
Cooling energy efficiency (EER, W/W)3.30
Heating energy efficiency (COP, W/W)3.61
Indoor unit typeWall-mountable
Airflow480 m³/h
Power requirements220-240V/50Hz
Power consumption (typical)1060 W
Weight and Dimensions IconWeight and Dimensions
Weight9000 g
Dimensions (WxDxH)825 x 189 x 285 mm

Summary

1. Precautions

Precautions for the Service

Guidelines for safe and correct service procedures, including part replacement and harness connection.

Precautions for Static Electricity and PL

Safety measures related to static electricity and personal safety during repair.

Precautions for the Safety

General safety guidelines to prevent electric shock, fire, and damage during operation and repair.

2. Product Specifications

Product Features

Details on product features like good' sleep Mode, Catechin Filter, Silver Nano Evaporator, and MPI Mode.

Modified Items Compared with Basic Model

Highlights design and chassis changes between basic and new models for indoor and outdoor units.

Comparative Product Specifications

Table comparing performance, capacity, size, and other specifications for AQV09UGA and AQV12UGA models.

Accessory and Option Specifications

Lists included accessories like remote control and plate hanger, and optional items like filters.

3. Disassembly and Reassembly

Necessary Tools

Lists essential tools required for disassembling the unit, such as screwdrivers and spanners.

Indoor Unit Disassembly

Step-by-step procedure for disassembling the indoor unit, covering parts like the front panel and tray drain.

Outdoor Unit Disassembly

Detailed steps for disassembling the outdoor unit, including removing covers, plates, and internal components.

4. Troubleshooting

Setting Option Setup Method

Step-by-step guide on how to enter and configure option settings using the remote control.

Display Error and Check Method

Details various error codes displayed by the unit and provides methods for checking and diagnosing the faults.

Fault Diagnosis by Symptom

Guides users through troubleshooting common issues based on symptoms like communication errors, sensor failures, and motor problems.

PCB Inspection Method

Outlines procedures for inspecting Printed Circuit Boards (PCBs) including pre-checks, general procedures, and detailed indoor/outdoor inspections.

Main Part Inspection Method

Instructions for inspecting key components like temperature sensors, fan motors, and stepping motors using a tester.

5. Exploded Views and Parts List

Indoor Unit Exploded View and Parts

Provides an exploded view diagram and a comprehensive list of parts for the indoor unit.

Outdoor Unit Exploded View and Parts

Presents an exploded view diagram and a detailed list of parts for the outdoor unit.

Ass'y Control Out Parts List

Details the parts and quantities for the control assembly, referencing specific model codes.

6. PCB Diagram and Parts List

Block Diagram

Shows the high-level functional blocks and interconnections for the Ass'y Control In.

Indoor Main PCB Diagram

Identifies connectors and their functions on the indoor main PCB (DB93-07430B).

Indoor Display PCB Diagram

Details the connectors and signals for the indoor display PCB (DB93-06984C).

Outdoor Main PCB Diagram

Shows connections for the outdoor main PCB (DB93-07108C/DB93-07108D).

Outdoor EMI PCB Diagram

Illustrates the components and connections for the outdoor EMI PCB (DB93-07050A).

Electrical Part List

Comprehensive list of electronic components used on the main PCB, including code numbers, descriptions, and specifications.

7. Wiring Diagram

Indoor Wiring Diagram

Illustrates the wiring connections and component layout for the indoor unit.

Outdoor Wiring Diagram

Shows the electrical wiring and connections between components in the outdoor unit.

8. Schematic Diagram

Indoor Unit Schematic

Provides a detailed schematic of the indoor unit's electronic circuits, including power, control, and sensor connections.

Display Schematic

Details the circuitry related to the display unit, showing component connections and options.

Outdoor Unit Schematic

Presents the schematic diagram for the outdoor unit, illustrating modules like AC Zero Cross, BLDC Motor Drive, Communication, and SMPS.

9. Reference Sheet

Refrigerating Cycle Diagram

Illustrates the flow of refrigerant through the air conditioning system's components.

Model Name Index

Explains the coding system used for model names, breaking down each character's meaning.

Pressure Distribution Chart

Displays charts showing the relationship between outdoor temperature, indoor temperature, and refrigerant pressure.

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