Sharp AH-G13 - User Manual

Need help?

Do you have a question about the Sharp AH-G13 and is the answer not in the manual?

Summary

Product Specifications

AH-G13;AU-G13 Specifications

Detailed specifications for the AH-G13/AU-G13 model including electrical and fan data.

AH-PG15;AU-PG15 Specifications

Detailed specifications for the AH-PG15/AU-PG15 model including electrical and fan data.

External Dimensions

Indoor Unit Dimensions (AH-G13;AH-PG15)

Diagrams showing external dimensions for the indoor units.

Outdoor Unit Dimensions (AU-G13;AU-PG15)

Diagrams showing external dimensions for the outdoor units.

Wiring Diagrams

Indoor Unit Wiring Diagram (AH-G13)

Electrical wiring diagram specific to the AH-G13 indoor unit.

Indoor Unit Wiring Diagram (AH-PG15)

Electrical wiring diagram specific to the AH-PG15 indoor unit.

Outdoor Unit Wiring Diagram (AU-G13;AU-PG15)

Electrical wiring diagram for the outdoor units.

Electric Parts List

AH-G13;AU-G13 Electric Parts

List of electrical components for AH-G13/AU-G13 models with models and remarks.

AH-PG15;AU-PG15 Electric Parts

List of electrical components for AH-PG15/AU-PG15 models with models and remarks.

Micro-Computer Control System

Indoor Unit (AH-G13) Electronic Control Diagram

Detailed electronic control diagram for the AH-G13 indoor unit.

Indoor Unit (AH-PG15) Electronic Control Diagram

Printed Wiring Diagrams

Indoor Unit (AH-G13) Printed Wiring Diagram

Printed wiring diagram for the AH-G13 indoor unit control board.

Indoor Unit (AH-PG15) Printed Wiring Diagram

Functions and Operation Modes

Temperature Control Characteristics

How thermostat lines control temperature in COOL and DRY modes.

Operation Modes Overview

Details on COOL operation modes, compressor, and fan control.

Fan Speed Settings

Indoor fan speed settings for various modes and models.

Operation Mode Outputs

Power On Start and Auto Restart

Unit behavior upon power supply and restart after power failure.

Test Mode Procedures

AH-G13 Test Mode Steps

Sequence and outputs for the AH-G13 test mode.

AH-PG15 Test Mode Steps

Sequence and outputs for the AH-PG15 test mode.

Diagnosis Procedure

Diagnosis Procedure and Timing Charts

Steps for diagnosing faults and associated timing charts for fault indication.

Troubleshooting Guide

Unit Unresponsive to Remote Controller

Troubleshooting steps when the remote controller does not operate the unit.

Remote Controller Communication Issues

Troubleshooting steps for issues related to remote controller signal and batteries.

Cooling Issues and Compressor Non-operation

Refrigeration Cycle and Performance Curves

Refrigeration Cycle Diagram

A visual representation of the air conditioner's refrigeration cycle.

Standard Conditions and Performance Curves

Standard operating conditions and graphical performance curves.

Indoor Unit Disassembly Procedure

Opening Panel and Cord Clamp

Steps to open the front panel and remove the cord clamp from the indoor unit.

Wiring and Air Filter Removal

Procedures for disconnecting unit-to-unit wiring and removing air filters.

Cover and Louver Base Removal

Steps for removing screw covers, louvers, and other casing parts of the indoor unit.

Front Panel and Control Box Removal

LED Guide and Display Board Removal

Procedures for removing the LED guide and display board assembly from the indoor unit.

Thermistor and Holder Removal

Steps to disconnect the thermistor and remove its holder from the indoor unit.

Holder and PC Cover Removal

Evaporator and Drain Guide Removal

Procedures for removing the evaporator assembly and drain guide from the indoor unit.

Evaporator Assembly and Drain Pan Removal

Cross Flow Fan Removal

Steps to remove the cross flow fan from the indoor unit.

Outdoor Unit Disassembly Procedure

Side Cover and Terminal Cover Removal

Steps to loosen screws for the side and terminal covers of the outdoor unit.

Cord and Top Panel Removal

Procedures for disconnecting the unit-to-unit cord and removing the top panel.

Plastic Bands and Terminals Removal

Special Nut and Control Box Removal

Procedures for removing the special nut and the control box from the outdoor unit.

Specific Component Procedures

Fan Disassembly Procedure

Detailed steps for disassembling the fan unit.

Compressor Cover Assembly Procedure

Detailed steps for assembling the compressor cover.

This document is a service manual for Sharp split system room air conditioners, specifically models AH-G13 and AH-PG15 for indoor units, and AU-G13 and AU-PG15 for outdoor units. It provides comprehensive information for service and maintenance, covering product specifications, external dimensions, wiring diagrams, electrical parts, microcomputer control system, functions, troubleshooting, refrigeration cycle, performance curves, disassembling procedures, and a replacement parts list.

Function Description

The device is a split system room air conditioner designed for cooling. It operates by controlling the compressor and fan motors based on room temperature and preset temperature settings. The unit features various operation modes including COOL and DRY, with automatic fan speed control and a freeze preventive function. It also incorporates timer functions (ON/OFF and 1-hour timer) and an auto-restart feature in case of power failure. A test mode is available for diagnostic purposes.

Important Technical Specifications

The AH-G13/AU-G13 and AH-PG15/AU-PG15 models share identical specifications:

Cooling Capacity: 3.50 kW
Phase: Single
Rated Frequency: 50 Hz
Rated Voltage: 220 V
Rated Current: 4.95 A
Rated Input: 1045 W
Power Factor: 97-99%
Compressor: Hermetically sealed rotary type (Model: QJ208PHA), using SUNISO 4GSI or NM56M oil (410cc).
Refrigerant System:
- Evaporator: Slit fin and Grooved tube type
- Condenser: Slit fin and Grooved tube type
- Control: Capillary tube
- Refrigerant Volume: 840g
Noise Level (Indoor Unit): High 39 dB(A), Mid 33 dB(A), Low 29 dB(A)
Noise Level (Outdoor Unit): 48 dB(A)
Fan System:
- Drive: Direct drive
- Air Flow Quantity (Indoor Unit): High 10.2 m³/min, Mid 9.6 m³/min, Low 8.7 m³/min
- Air Flow Quantity (Outdoor Unit): 27 m³/min
- Fan Type: Cross flow fan (indoor), Propeller fan (outdoor)
Connections:
- Refrigerant Coupling: Flare type
- Refrigerant Tube Size: Gas 3/8", Liquid 1/4"
- Drain Piping: O.DO 18 mm
Safety Devices: Compressor overload protector, fan motor thermal fuse/protector, fuse, microcomputer control.
Air Filters: Polypropylene net (washable).
Net Dimensions:
- Indoor Unit: Width 790 mm, Height 278 mm, Depth 198 mm
- Outdoor Unit: Width 730 mm, Height 540 mm, Depth 250 mm
Net Weight: Indoor Unit 10 kg, Outdoor Unit 34 kg

Usage Features

Temperature Control: The unit operates in COOL and DRY modes with thermostat lines controlling compressor and fan operation based on room temperature and preset settings.
Preset Temperature Range: 18°C to 32°C. If room temperature falls below 18°C, it's set to 18°C; if above 32°C, it's set to 32°C.
DRY Mode: Divides operation into Cooling, Dehumidifying, and Circulating zones, controlling compressor and fan speed accordingly (DH for cooling, DL for dehumidifying and circulating).
Fan Speed Control: Offers various fan speeds (DL, DH, CL, CAL, CM, CAH, CH) with corresponding RPMs, ranging from 800 to 1170 RPM. An automatic fan speed feature adjusts fan speed based on thermostat lines C1 to C3 in COOL operation.
Freeze Preventive: Automatically turns off the compressor if the indoor pipe temperature falls below 3°C for 3 minutes or more during cool or dry operation, and turns it back on when it rises above 7°C.
Timer Functions: Includes ON/OFF timer and a 1-hour timer. The 1-hour timer has priority over other timer operations.
Automatic Air Conditioning: Automatically sets the operation mode and preset temperature based on room temperature at startup.
Auto Restart: If JP5 is ON, the unit restarts in the same operation mode after a power failure. If JP5 is OFF, this function is disabled.
Test Run Mode: Activated by pressing the "AUX" button for 5 seconds or more, allowing for continuous compressor operation in cool mode or dehumidifying zone operation in dry mode.

Maintenance Features

Disassembly Procedures: Detailed instructions with images are provided for disassembling both indoor and outdoor units, including steps for removing panels, filters, electrical components, and refrigeration cycle parts.
Wiring Diagrams: Comprehensive wiring diagrams for both indoor and outdoor units are included to aid in electrical troubleshooting and component identification.
Electrical Parts List: Lists key electrical components such as compressor, fan motors, capacitors, transformer, and fuses, along with their models, remarks, and locations (indoor/outdoor).
Microcomputer Control System: Electronic control diagrams and explanations of the microcomputer's role in controlling various functions are provided.
Troubleshooting Guide: A flowchart-based troubleshooting guide helps diagnose issues such as the unit not functioning, no cooling, or compressor not operating. It includes steps for measuring voltages and resistances.
Diagnosis Procedure: Explains how to interpret LED indicators (Timer LED, Operation LED) for diagnosing issues like indoor fan motor failure, thermistor open/short states, and louver unit installation problems.
Thermistor Properties: A graph and table detail the resistance properties of indoor thermistors (room temperature and heat exchange) to assist in checking their functionality.
Washable Air Filters: The polypropylene net air filters are washable, simplifying routine maintenance.
Insulation Resistance Check: After repair or parts replacement, it is recommended to measure the insulation resistance; if it's below 1MΩ, further inspection and repair are required.