Sanyo CL2472, C2472, C1872 Noise Malfunction and Electromagnetic Interference, Noise malfunction

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10-5. Noise Malfunction and Electromagnetic Interference

An inverter A/C operates using pulse signal control and high frequencies. Therefore, it is susceptible to the effects of external noise, and is likely to cause electromagnetic interference with nearby wireless devices.

A noise filter is installed for ordinary use, preventing these problems. However, depending on the installation conditions, these effects may still occur. Please pay attention to the points listed below.

(1) Noise malfunction

This refers to the application of high-frequency noise to the signal wires, resulting in abnormal signal pulses and malfunction.

Locations most susceptible to noise

Trouble

Correction

 

 

 

 

1.

Locations near broadcast stations where

Either of the following trouble may occur.

(The fundamental concept is to make the

 

there are strong electromagnetic waves

1. The unit may stop suddenly during

system less susceptible to noise.)

 

 

 

2.

Locations near amateur radio (short wave)

operation.

- Insulate for noise or

 

stations

2. Indicator lamps may flicker.

distance from the noise source. -

3.

Locations near electronic sewing machines

1. Use shielded wires.

 

 

and arc-welding machines

 

2. Move unit away from the noise source.

 

 

 

 

 

 

 

(2) Electromagnetic interference

This refers to noise generated by high-speed switching of the microcomputer and compressor. This noise radiates through space and returns to the electric wiring, affecting any wireless devices (televisions, radios, etc.) located nearby.

Locations most susceptible to noise

Trouble

 

Correction

 

 

 

 

1.

A television or radio is located near the

1. Noise appears in the television picture,

1. Select a separate power source.

 

A/C and A/C wiring.

or the picture is distorted.

2.

Keep the A/C and A/C wiring at least 1 meter

 

 

 

2.

The antenna cable for a television or

2. Static occurs in the radio sound.

 

away from wireless devices and antenna cables.

 

radio is located close to the A/C and A/C

 

3.

Change the wireless device’s antenna to a high-

 

wiring.

 

 

 

 

sensitivity antenna.

3.

Locations where television and radio

 

 

 

4.

Change the antenna cable to a BS coaxial cable.

 

signals are weak.

 

 

 

5.

Use a noise filter (for the wireless device).

 

 

 

 

 

 

6.

Use a signal booster.

 

 

 

 

 

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Contents DC Inverter Split System AIR Conditioner KS1872 + C1872 + CL1872 KS2472 + C2472 + CL2472Please Read Before Starting Table of Contents Checking Electrical Components Operating Range Models KS1872 + C1872 KS2472 + C2472Models KS1872 + CL1872 KS2472 + CL2472 Unit Specifications KS1872C1872 208V Single-Phase 60Hz KS2472 C2472KS2472 CL1872 KS1872 CL2472 KS2472 Major Component Specifications Indoor UnitCB-KS2472 Outdoor Unit Outdoor Unit C2472 Outdoor Unit CL1872 Outdoor Unit CL2472 Compressor temp sensor Other Component SpecificationsIndoor heat exchanger sensor Outdoor air temp sensorDimensional Data Outdoor Unit C1872 Outdoor Unit C2472 Indoor unit Outdoor unit Refrigerant Flow DiagramRefrigerant Flow Diagram Curve because it can cause the tube to break or crackTemperature Charts Performance DataIndoor Unit KS1872 Outdoor Unit CL1872 Indoor Unit KS2472 Outdoor Unit C2472 Indoor Unit KS2472 Outdoor Unit CL2472 Air Throw Distance Charts Cooling Electrical Characteristics C1872 CoolingCL2472 C2472 CoolingElectric Wiring Diagrams Indoor Unit KS1872 KS2472Outdoor Unit C1872 CL1872 Controller8FA2-5257-68700-3 8FA2-5257-68400-3 Installation Site Selection C1872, CL1872 C2472, CL2472Recommended Wire Length and Diameter AWGRemote Control Unit Installation Position To take out the remote control unit, pull it forwardHow to Test Run the Air Conditioner Remove the Grille to Install the Indoor Unit How to remove the grilleHow to replace the grille Maintenance Address Setting of the Remote Control UnitHow to Disconnect How to ConnectFunctions Operation FunctionsHigh Power Protective Functions Freeze preventionTroubleshooting Precautions before Performing Inspection or RepairMethod of Self-Diagnostics Self-diagnostics Lamps S01Replace the controller Replace the circuit board or the fuseChecking the indoor unit Control Check items unit operation Using the TEST/T-RUN terminalsChecking the Indoor and Outdoor Units Checking the serial communicationsRemedy for symptom 3 to Diagnostic procedureDiagnostic results Trouble Diagnosis of Fan MotorOutdoor Fan Motor Noise Malfunction and Electromagnetic Interference Noise malfunctionElectromagnetic interference Checking Electrical Components Measurement of Insulation ResistanceChecking Continuity of Fuse on PCB Assy Refrigerant R410A Special Precautions When Servicing Unit Characteristics of New Refrigerant R410AChecklist before Servicing For servicing, use the following tools for R410A Tubing Installation ProceduresTools Specifically for R410A Tool Distinction Tool NameCase of Compressor Malfunction Never charge a large amount Configuration and characteristics of cylindersRecharging Unit. This may causeCase Refrigerant is Leaking Welding leaking pointsCharging Additional Refrigerant Retro-Fitting Existing SystemsKS1872 + C1872 + CL1872 KS2472 + C2472 + CL2472 Features Contents Alert SymbolsProduct Information Installation Location Safety InstructionsElectrical Requirements Names of Parts Unit Display and Operation Button Quiet lampRemote Control Unit Display Advance button Remote Control UnitHR. Timer button TransmitterDRY Using the Remote Control Unit How to Install BatteriesACL button ALL Clear Using the Remote Control Unit Operation with the Remote Control Unit OperationOperation with the Remote Control Unit Press the ON/OFF operation buttonCooling and DRY Mode Night Setback Mode is used for saving energyQuiet Mode Power failure during operation Special RemarksClicking sound is heard from the air conditioner Setting the Timer Operation IndicationSetting the Timer To cancel a timer program Press the Cancel button1030 pm 710 am 1100 am Present time Cancellation procedure Using the 1-Hour OFF TimerSetting procedure Operation together with the Daily ON/OFF Repeat TimerHorizontal Adjusting the Airflow DirectionSetting the airflow manually Sweep functionOperation without the Remote Care and CleaningWhen the air conditioner is not running Control UnitCare and Cleaning CleaningFilter How to clean the air clean filterWashing the grille with water Air clean filter Negative ion generator metal electrodes inside plastic caseTroubleshooting Operating RangeTrouble Possible Cause Remedy

CL1872, CL2472, C1872, C2472 specifications

The Sanyo C1872, CL2472, CL1872, and C2472 models are notable additions to Sanyo's esteemed line of electronics, primarily focusing on providing high-quality performance in their respective categories. These models exemplify advanced technology coupled with user-friendly features, catering to both individual consumers and business professionals.

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The C2472 model stands out with its impressive display quality and resolution, ideal for professionals working in graphic design or video editing. It boasts a high-definition screen that provides vibrant colors and sharp details, enhancing the user experience significantly. Furthermore, the C2472 incorporates advanced processing technology, ensuring that tasks are completed efficiently without lag.

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In summary, the Sanyo C1872, CL2472, CL1872, and C2472 are excellent examples of modern electronics, combining portability, advanced technology, and robust performance. Whether for leisure, work, or creative projects, these models offer features that meet a variety of user needs, ensuring that Sanyo remains a trusted name in the electronics market.
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