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Sanyo CH2442 User Manual

Sanyo CH2442
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85464849182000 REFERENCE NO. SM830082
FILE NO.
TECHNICAL DATA
&
SERVICE MANUAL
1
2
3
4
Section
5
XH2442 / CH2442
XH3642 / CH3642
XH4242 / CH4242
TH2442 / CH2442
TH3642 / CH3642
TH4242 / CH4242
KH2442 / CH2442
KH3642 / CH3642
UH2442 / CH2442
UH3642 / CH3642
SPLIT SYSTEM AIR CONDITIONER
OUTDOOR MODEL No. PRODUCT CODE No.
CH2442 854 017 21
CH3642 854 017 22
CH4242 854 017 23
INDOOR MODEL No. PRODUCT CODE No.
XH2442 854 017 11
XH3642 854 017 12
XH4242 854 017 13
TH2442 854 017 14
TH3642 854 017 15
TH4242 854 017 16
KH2442 854 017 07
KH3642 854 017 08
UH2442 854 017 19
UH3642 854 017 20
XH2442 XH3642
XH4242
CH3642
CH4242
CH2442
UH2442
TH2442
TH3642
TH4242
KH2442
KH3642
Indoor Unit Outdoor Unit
UH3642

Table of Contents

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Sanyo CH2442 Specifications

General IconGeneral
TypeSplit System
Power Supply220-240V, 50Hz
Operating Temperature (Cooling)18°C to 43°C
Noise Level (Indoor)45 dB
Cooling Capacity24000 BTU/h

Summary

2. Processes and Functions

2-1 Room Temperature Control

Adjusts room temperature by controlling compressor ON/OFF based on thermostat input.

2-2 Cold Draft Prevention (Heating Cycle)

Controls indoor fan speed to prevent cold air draft until indoor heat exchange coils warm up.

2-3 Automatic Fan Speed (Indoor Unit)

Adjusts indoor fan speed automatically based on room temperature when AUTO mode is selected.

2-4 Outdoor Fan Speed Control

Selects outdoor fan speed automatically based on outdoor temperature to optimize performance.

2-5 Freeze Prevention (Cooling)

Prevents the indoor heat exchange coil from freezing by regulating electronic refrigerant control valve.

2-6 Condensing Temperature Control (Cooling)

Controls condensing temperature by sensing outdoor heat exchanger coil temperature.

2-7 Overload Protection (Heating)

Prevents the air conditioner from overloading, particularly during heating.

2-8 Discharge Temperature Control (Cooling and Heating)

Prevents the compressor motor from burnout by controlling discharge gas temperature.

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

Automatically switches between heating and cooling modes based on room temperature relative to set temperature.

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

Operates defrosting system when frost forms on the outdoor coil to maintain performance.

2-11 4-Way Valve, Solenoid Control

Directs refrigerant flow in the correct direction based on the selected operation mode (Cooling/Heating).

2-12 Automatic Restart after Power Interruption

Features a power failure recovery function to resume operation after power interruption.

2-13 Electronic Refrigerant Control Valve

Provides precise control of refrigerant flow amount for smooth heating/cooling adjustments.

2-14 Compressor Discharge Gas Temperature

Monitors compressor discharge gas temperature to prevent overheating and burnout.

2-15 Compressor Current Detection Circuit

Detects compressor current to stop the motor and prevent damage from overcurrent.

2-16 Electronic Refrigerant Control Valve Control

Controls refrigerant circulation volume via a pulse-type electronic valve based on multiple conditions.

2-17 Voltage Detection Control

Protects compressor and electrical components by monitoring power voltage levels.

3. Electrical Data

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

Provides electric wiring diagrams and schematic diagrams for various indoor unit types.

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

Provides electric wiring diagrams and schematic diagrams for outdoor units.

4. Service Procedures

4-1 Troubleshooting

Guides users through diagnosing and solving unit problems using flow charts and alarm messages.

4-2 Checking the Electrical Components

Details procedures for checking electrical components like resistance, fuses, and PCB settings.

1. Specifications

1-1 Unit Specifications

Lists detailed technical specifications for each indoor and outdoor unit model.

1-2 Major Component Specifications

Provides specifications for key internal components of indoor and outdoor units.

1-3 Other Component Specifications

Lists specifications for various auxiliary components like transformers, motors, and sensors.

1-4 Dimensional Data

Provides detailed physical dimensions and mounting information for indoor and outdoor units.

1-5 Refrigerant Flow Diagram

Illustrates the refrigerant flow path during cooling and heating cycles for different models.

1-6 Operating Range

Specifies the acceptable indoor and outdoor temperature ranges for cooling and heating operation.

1-7 Cooling Capacity

Presents cooling capacity data under various temperature and airflow conditions for different models.

1-8 Heating Capacity

Shows heating capacity data under various temperature conditions for different models.

1-9 Performance Charts

Displays charts related to operating current, pressure, and fan speed based on conditions.

1-10 Noise Criterion Curves

Provides octave band sound pressure level data for different unit types and models.

1-11 Increasing the Fan Speed

Explains how to increase fan speed to address low airflow due to high static pressure.

1-12 Air throw distance chart

Illustrates air throw distance based on louver angle, fan speed, and room temperature.

1-13 Installation Instructions

Details tubing length limits, elevation differences, and refrigerant charging requirements.

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