Sanyo SAP-KRV94EHDX 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 Table of Contents Checking Electrical Components For safe installation and trouble-free operation, you Must Please Read Before StartingOperating Range Unit Specifications Indoor Unit SAP-KRV94EHDXSAP-KRV124EHDX Outdoor Unit SAP-CRV124EHDXMajor Component Specifications SAP-KRV94EHDXCB-KRV124EHDX Outdoor Unit CB-CRV124EHDX Other Component Specifications Dimensional Data Dia .35 1/4 Refrigerant Flow Diagram Refrigerant Flow DiagramInsulation of Refrigerant Tubing Indoor Unit SAP-KRV94EHDX Outdoor Unit SAP-CRV94EHDXTemperature Charts Performance DataIndoor Unit SAP-KRV124EHDX Outdoor Unit SAP-CRV124EHDX Air Throw Distance Charts Indoor Unit SAP-KRV124EHDX Electrical Characteristics CoolingHeating Electric Wiring Diagrams Outdoor Unit Indoor UnitSAP-CRV94EHDX SAP-KRV94EHDX SAP-CRV124EHDX SAP-KRV124EHDX Installation Site Selection About Recommended Wire Length and Diameter Wiring System DiagramRemote Control Unit Installation Position Mounting on a WallHow to Test Run the Air Conditioner ON/OFFRemove the Grille to Install the Indoor Unit How to remove the grilleHow to replace the grille Maintenance Address Setting of the Remote Control UnitSwitching the remote controller address Removing and Mounting the Drain Hose Removing the Electrical Component Box Page Removing the Panel Motor Removing and Mounting the Drain Pan Air Outlet Assy Removing the Drain Pan Air Outlet AssyMounting the Drain Pan Air Outlet Assy Water in the drain panRemoving the Negative Ion Generator Removing and Mounting the Fan Motor Removing the Fan MotorMounting the Fan Motor Removing the Fan How to Disconnect How to ConnectFunctions Operation FunctionsEmergency operation Auto cooling/heating operationTimer backup Lamp colorsCompressor discharge temperature control Protective FunctionsOverload prevention during heating Freeze preventionMode Cooling Mode HeatingNon-Stop Defrosting Troubleshooting Precautions before Performing Inspection or RepairMethod of Self-Diagnostics Self-diagnostics Lamps ION Timer OperationChecking the Indoor and Outdoor Units Diagnostic procedure Diagnostic resultsRemedy for symptom 3 to Trouble Diagnosis of Indoor and Outdoor Fan MotorOutdoor Fan Motor Noise Malfunction and Electromagnetic Interference Noise malfunctionElectromagnetic interference Upper right screw Grille Screw Flap Screw cover Making a Diagnosis of the Panel Motor 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 Size of flareTubing precautions No addition of compressor oil for R410ANo use of refrigerant other than R410A If refrigerant R410A is exposed to fireTubing Installation Procedures Tools Specifically for R410AFor servicing, use the following tools for R410A Tool Distinction Tool NameProcedure for Replacing Compressor Case of Compressor MalfunctionConfiguration and characteristics of cylinders RechargingNever charge a large amount Unit. This may causeCase Refrigerant is Leaking Welding leaking pointsWhen Tubes are Extended Charging Additional RefrigerantRetro-Fitting Existing Systems Use of Existing UnitsOI-852-6-4180-791-00-0 Features Child LockContents Alert SymbolsProduct Information Installation Location Safety InstructionsElectrical Requirements Names of Parts Unit Display and Operation Button Remote Control Unit Display Remote Control Unit Auto HeatDRY CoolUsing the Remote Control Unit ONE TIME/EVERYDAYUsing the Remote Control Unit Remote control unit mount Mounting screws 4 x 16 includedControl Unit Operation with the Remote Control Unit StepStep Press the ON/OFF operation buttonOperation with the Remote Control Unit Cover closed Cover opened StepAdjusting the Fan Speed Cooling and DRY Mode Night Setback Mode is used for saving energySetting Setting TemperatureQuiet Mode Special Remarks Setting the Timer Example To set toOperation Indication Setting the Timer To cancel a timer program Press the Cancel button2230 610 2000 Present time OFFUsing the 1.2.3.5-Hour OFF Timer Setting procedureCancellation procedure Operation together with the Daily ON/OFF Repeat TimerAdjusting the Airflow Direction SweepFAN Heat Care and Cleaning Indoor UnitCare and Cleaning How to replace the anti-moldRemounting the front panel FilterHow to clean the air clean filter Negative ion generator metal electrodes inside plastic caseTroubleshooting Operating RangeTrouble Possible Cause Remedy Osaka, Japan Sept

SAP-KRV94EHDX specifications

The Sanyo SAP-KRV94EHDX is a cutting-edge split-type air conditioning unit that exemplifies advanced technology and efficiency. Designed for both residential and commercial spaces, this model is equipped with features that cater to various cooling and heating needs.

One of the main highlights of the Sanyo SAP-KRV94EHDX is its energy efficiency. With a high Energy Efficiency Ratio (EER), this unit minimizes energy consumption while maximizing cooling performance. This not only results in lower electricity bills but also contributes to a reduced carbon footprint, making it an environmentally friendly choice for users.

The SAP-KRV94EHDX employs inverter technology, which allows the compressor to adjust its speed dynamically based on the temperature requirements of the environment. This means that the unit operates more quietly and uses less energy when maintaining a consistent temperature. The inverter system ensures that the air conditioner can quickly reach the desired cooling or heating temperature and maintain it without the frequent on-off cycles typical of traditional units.

Additionally, the air conditioning unit comes with a powerful cooling capacity, effectively managing larger spaces. It can easily handle varying ambient conditions while providing rapid cooling in extremely warm weather, making it perfect for areas with hot climates.

Other notable features include a user-friendly remote control, allowing users to adjust settings from a distance effortlessly. The unit also incorporates a multi-stage air filtration system designed to remove dust, allergens, and other airborne particles, contributing to better indoor air quality.

The Sanyo SAP-KRV94EHDX is not just about functionality; it also boasts a sleek and modern design that blends seamlessly with various interior aesthetics. Its quiet operation ensures that it does not disturb daily activities, making it suitable for bedrooms, offices, and living spaces.

Moreover, the unit comes with various operational modes, including cooling, dehumidification, and a heating function. This versatility makes the SAP-KRV94EHDX an all-season solution for climate control.

In summary, the Sanyo SAP-KRV94EHDX is a top-tier air conditioning unit that combines efficiency, advanced technology, and user convenience. Its inverter technology, multi-stage air filtration, and modern design make it a reliable choice for anyone seeking comfort throughout the year.
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