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Sanyo SPW-T253GH56 User Manual

Sanyo SPW-T253GH56
106 pages
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FILE NO.
SERVICE MANUAL
SPW-T253GH56 SPW-C253GH5
SPW-T253GH56 SPW-C253GH8
SPW-T363GH56 SPW-C363GH8
SPW-T483GH56 SPW-C483GH8
SPLIT SYSTEM AIR CONDITIONER
INDOOR MODEL No. PRODUCT CODE No. OUTDOOR MODEL No. PRODUCT CODE No.
SPW-T253GH56 854 011 44 SPW-C253GH5 854 012 18
SPW-T253GH56 854 011 44 SPW-C253GH8 854 012 19
SPW-T363GH56 854 011 45 SPW-C363GH8 854 012 20
SPW-T483GH56 854 011 46 SPW-C483GH8 854 012 21
Indoor Unit Outdoor Unit
SPW-T253GH56
SPW-T363GH56
SPW-T483GH56
SPW-C253GH5
SPW-C253GH8
SPW-C363GH8
SPW-C483GH8
0408_C_S
0409_C_S
0178_T_I
85464849134001 REFERENCE NO. SM830034
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Section

Table of Contents

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Sanyo SPW-T253GH56 Specifications

General IconGeneral
Cooling Capacity2.5 kW
Heating Capacity3.2 kW
Power Supply220-240V, 50Hz
RefrigerantR410A
Weight (Indoor)9 kg
TypeSplit System
Noise Level (Outdoor)50 dB

Summary

Introduction: Read Me First!

HOW TO USE THIS MANUAL

Guidance on effectively navigating and utilizing the service manual's sections for optimal understanding and troubleshooting.

1. SPECIFICATIONS

1-1 Unit Specifications

Detailed technical specifications for various indoor and outdoor unit models, including performance and electrical ratings.

1-2 Major Component Specifications

Technical details of key components within both indoor and outdoor units, such as motors, compressors, and heat exchangers.

1-3 Other Component Specifications

Specifications for auxiliary components like power transformers, thermistors, relays, and solenoid valves used in the air conditioning system.

1-4 Dimensional Data

Provides physical dimensions and layout diagrams for indoor and outdoor units, crucial for installation and space planning.

1-5 Refrigerant Flow Diagram

Illustrates the refrigerant circulation path for both cooling and heating cycles, detailing component interactions.

1-6 Operating Range

Defines the environmental temperature limits for efficient cooling and heating operation of the air conditioning unit.

2. PROCESSES AND FUNCTIONS

2-1 Room Temperature Control

Explains how the system manages room temperature by controlling compressor and fan operations based on sensor readings.

2-2 Cold Draft Prevention (Heating Cycle)

Describes the mechanism to prevent cold air discharge during heating by managing indoor fan speed until coils warm up.

2-3 Automatic Fan Speed (Indoor Unit)

Details how the indoor fan speed automatically adjusts based on room temperature in cooling and heating modes.

2-4 Outdoor Fan Speed Control

Explains the automatic adjustment of the outdoor fan speed based on ambient temperature for optimized performance.

2-5 Freeze Prevention (Cooling)

Outlines the system's protection against indoor coil freezing by regulating refrigerant flow and compressor operation.

2-6 Condensing Temperature Control (Cooling)

Describes how condensing temperature is managed by controlling outdoor fan speed and refrigerant flow based on outdoor coil temperature.

2-7 Overload Protection (Heating)

Explains the function that prevents the air conditioner from overloading during heating operation to protect components.

2-8 Discharge Temperature Control (Cooling and Heating)

Details the system's method to prevent compressor burnout by monitoring and controlling discharge gas temperature.

2-9 Auto. Mode for Automatic Heating/Cooling Switching

Explains how the unit automatically switches between cooling and heating modes based on temperature differentials.

2-10 Defrosting Control, Outdoor Heat Exchanger Coil (Heating)

Describes the defrost cycle operation to remove frost from the outdoor coil, ensuring efficient heating.

2-11 4-Way Valve, Solenoid Control

Explains the function of the 4-way valve in directing refrigerant flow for cooling and heating modes.

2-12 Automatic Restart after Power Interruption

Details the unit's ability to resume operation automatically after a power failure, preserving settings.

2-13 Electronic Refrigerant Control Valve

Describes the function and precise control capability of the electronic valve for managing refrigerant flow.

2-14 Compressor Discharge Gas Temperature

Provides temperature ranges for compressor discharge gas under various operating conditions for troubleshooting.

2-15 Compressor Current Detection Circuit

Explains the circuit that monitors compressor current to prevent damage from overcurrent or locked rotor conditions.

2-16 Dehumidifying Operation

Details the dehumidification mode, which removes moisture while minimizing temperature reduction using low fan speed.

2-17 Auto-flap Control

Explains the control of the auto-flap for directing airflow in multiple steps across different operating modes.

2-18 Electronic Refrigerant Control Valve Control

Describes the control logic for the electronic refrigerant valve, including fuzzy control for optimal flow rate.

2-19 Voltage Detection Control

Details the voltage monitoring function that issues an alarm to protect components from abnormal voltage levels.

3. ELECTRICAL DATA

3-1 Indoor Unit (Electric Wiring Diagram, Schematic Diagram)

Provides wiring diagrams and schematic representations for the indoor unit's electrical system.

3-2 Outdoor Unit (Electric Wiring Diagram, Schematic Diagram)

Offers detailed wiring diagrams and schematic representations for the outdoor unit's electrical system.

4. SERVICE PROCEDURES

4-1 Troubleshooting

Guides users through diagnosing and resolving common problems using flow charts, alarm messages, and LED indicators.

4-2 Checking the Electrical Components

Provides detailed procedures for testing electrical components, including resistance measurements and continuity checks.

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