Sanyo CH4272R Service Manual
Sanyo split system air conditioner service manual
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Also See for CH4272R:
- Installation instructions manual (111 pages) ,
- Specifications (2 pages) ,
- Submittal data (2 pages)
Table of Contents
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TECHNICAL DATA
&
SERVICE MANUAL
XH2672R / CH2672R, C2672R
XH3672R / CH3672R, C3672R
XH4272R / CH4272R, C4272R
TH2672R / CH2672R, C2672R
TH3672R / CH3672R, C3672R
TH4272R / CH4272R, C4272R
THH2672R / CH2672R
THH3672R / CH3672R
SPLIT SYSTEM AIR CONDITIONER
INDOOR MODEL No.
XH2672R
XH3672R
XH4272R
TH2672R
TH3672R
TH4272R
THH2672R
THH3672R
KH2672R
KH3072R
KH3672R
KHH2672R
UH2672R
UH3672R
XH2672R
UH2672R
85464849248002
PRODUCT CODE No.
OUTDOOR MODEL No.
854 028 32
854 028 33
854 031 89
854 028 35
854 028 36
854 031 90
854 028 38
854 028 39
854 028 28
854 028 29
854 028 30
854 028 31
854 028 40
854 028 41
Indoor Unit
XH3672R
XH4272R
UH3672R
KHH2672R
FILE NO.
KH2672R / CH2672R, C2672R
KH3072R / CH3072R, C3072R
KH3672R / CH3672R, C3672R
KHH2672R / CH2672R
UH2672R / CH2672R, C2672R
UH3672R / CH3672R, C3672R
PRODUCT CODE No.
854 028 20
CH3072R
854 028 21
CH3672R
854 028 22
854 031 87
854 028 24
C3072R
854 028 25
C3672R
854 028 26
854 031 88
TH2672R, THH2672R
TH3672R, THH3672R
TH4272R
KH3072R
KH3672R
REFERENCE NO.
KH2672R
Outdoor Unit
CH2672R, C2672R
CH3072R, C3072R
CH3672R, C3672R
CH4272R, C4272R
SM
831148-2
Section
1
2
3
4
5
6
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Table of Contents
Related Manuals for Sanyo CH4272R
Summarization of Contents
Please Read Before Starting
For Safe Installation and Trouble-Free Operation
General guidelines for safe and efficient installation and operation, emphasizing adherence to manual instructions and codes.
If Necessary, Get Help
Instruction on contacting sales/service outlets or certified dealers for assistance with special problems.
In Case of Improper Installation
Manufacturer's disclaimer regarding responsibility for issues arising from improper installation or failure to follow instructions.
Special Precautions
Specific safety advice for wiring, transporting, installing, and servicing the unit.
1. Specifications
1-1 Unit Specifications
Detailed specifications for various indoor and outdoor unit types, including performance and electrical ratings.
1-2 Major Component Specifications
Specifications for major indoor and outdoor unit components like fan motors, compressors, and heat exchangers.
1-3 Other Component Specifications
Details on other components such as power transformers, thermistors, drain pumps, and float switches.
1-4 Dimensional Data
Provides detailed dimensional drawings and measurements for various indoor and outdoor unit types.
1-5 Refrigerant Flow Diagram
Illustrates the refrigerant flow path for cooling and heating cycles in different unit configurations.
1-6 Operating Range
Defines the specified operating temperature ranges for cooling and heating modes.
1-7 Heating Capacity
Presents heating capacity ratios and correction coefficients based on operating conditions.
1-8 Noise Criterion Curves
Graphical representation of sound pressure levels across different frequency bands for various unit models.
1-9 Increasing the Fan Speed
Procedure to increase indoor fan speed to improve airflow when external static pressure is high.
1-10 Air Throw Distance Chart
Charts showing air throw distance based on horizontal distance and vertical air velocity for different unit types.
1-11 Installation Instructions
Guidelines for tubing length, selecting installation sites, and outdoor unit placement requirements.
1-12 Electrical Wiring
Precautions for wiring, recommended wire sizes, and wiring system diagrams for power supply and control.
1-13 Using Wireless Remote Controller
Instructions for setting up the indoor unit to use a wireless remote controller.
2. PROCESSES AND FUNCTIONS
2-1 Room Temperature Control
Explains how the system maintains room temperature by cycling the compressor based on thermostat signals.
2-2 Cold Draft Prevention
Describes how indoor fan speed is controlled during heating to prevent cold drafts.
2-3 Automatic Fan Speed
Details how the indoor fan speed automatically adjusts based on room temperature in cooling and heating modes.
2-4 Control Functions
Explains various control logic, including discharge temp, current release, fan control, freeze prevention, and overcurrent.
2-5 Outdoor Unit Control PCB
Provides a layout diagram and explanation of components on the outdoor unit control PCB.
3. ELECTRICAL DATA
3-1 Indoor Units
Presents electrical wiring and schematic diagrams for various indoor unit types.
3-2 Outdoor Units
Provides electrical wiring and schematic diagrams for various outdoor unit types.
4. SERVICE PROCEDURES
4-1 Meaning of Alarm Messages
Lists possible causes of malfunction corresponding to remote controller alarm displays.
4-2 Symptoms and Parts to Inspect
Details specific alarm symptoms, judgment conditions, and recommended parts for inspection and correction.
4-3 Details of Alarm Messages
Provides troubleshooting flowcharts for specific alarms like P29, P26, E31, P22, F04, F06, F07, F08, F12.
4-4 Table of Thermistor Characteristics
Presents resistance characteristics for thermistors at different temperature points.
5. OUTDOOR UNIT MAINTENANCE REMOTE CONTROL
5-1 Overview
Introduces the outdoor unit maintenance remote controller as a tool for checking EEPROM settings and monitoring system status.
5-2 Functions
Outlines the controller's capabilities, including starting/stopping units, mode switching, test runs, and displaying system data.
5-3 Normal Display Operations and Functions
Explains how to use the controller's buttons for unit start/stop, mode switching, and test runs.
5-4 Monitoring Operations: Display of Indoor and Outdoor Unit Sensor Temperatures
Describes how to access and view sensor temperatures for indoor and outdoor units.
5-5 Monitoring Outdoor Unit Alarm History
Details how to view the outdoor unit's alarm history and clear recorded alarms.
5-6 Setting Modes: Outdoor Unit EEPROM
Provides procedures for setting and changing outdoor unit parameters via the EEPROM.
6. TEST RUN
6-1 Preparing for Test Run
Checklist of essential steps before starting the air conditioner for a test run.
6-2 Caution
Important notes regarding system compatibility and the use of wired remote controllers for test runs.
6-3 Test Run Procedure
Step-by-step guide for performing a test run, including checking unit combinations and setting the remote controller.
6-4 Items to Check Before Test Run
Pre-test run checks including breaker energization and opening service valves.
6-5 Test Run Using Remote Controller
Instructions for operating the test run mode via the remote controller, including display indicators.
6-6 Precautions
Safety precautions to follow during the test run, including customer presence and wiring checks.
6-7 Table of Self-Diagnostic Functions and Corrections
A table correlating remote controller displays with causes and corrections for system issues.
6-8 Examples of Wiring Diagrams
Illustrates basic wiring diagrams for single-type systems and group controls.
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