Sanyo SAP-CRV123EH, SAP-KRV123EH, SAP-KRV93EH Noise malfunction and electromagnetic interference

Page 42

<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.

■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.

 

 

 

 

 

 

 

 

 

 

■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 Please Read Before Starting Table of Contents Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Operating RangeIndoor Unit SpecificationsUnit Specifications SAP-KRV93EHSAP-KRV123EH Outdoor Unit SAP-CRV123EHMajor Component Specifications SAP- KRV93EHSAP- KRV123EH Outdoor Unit Outdoor Unit SAP- CRV93EHOutdoor Unit SAP- CRV123EH Other Component Specifications Indoor Unit SAP- KRV93EHSAP- CRV123EH Data Ø65SAP-CRV123EH AIR DischargeInsulation of Refrigerant Tubing Refrigerant Flow DiagramRefrigerant Flow Diagram Proper insulation material. The thickness of the insulationTemperature Charts Performance DataIndoor Unit SAP-KRV93EH Outdoor Unit SAP-CRV93EH Indoor Unit SAP-KRV123EH Outdoor Unit SAP-CRV123EH Indoor Air TempAir Throw Distance Charts Axis air Vertical Indoor Unit SAP- KRV93EH Outdoor Unit SAP- CRV93EH Operating Frequency Charts230V Single-phase 50Hz CoolingHeating Indoor Unit SAP- KRV123EH Heating Electrical Data Electric Wiring Diagrams Outdoor Unit Indoor UnitSAP-CRV93EH SAP-KRV93EH SAP-CRV123EH SAP-KRV123EH Indoor Unit SAP-KRV123EHInstallation Instructions Installation Site SelectionAvoid Out Recommended Wire Length and Diameter Wiring System DiagramRemote 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 Maintenance Address Setting of the Remote Control UnitHow to Disconnect Emergency operation Auto cooling/heating operationPAM-αcontrol Timer backup Lamp colorsFreeze prevention Compressor discharge temperature controlOverload prevention during heating Cold-air prevention during heatingDefrost detection and release CT Peak current cut-off controlPrecautions before performing inspection or repair Method of self-diagnosticsExecuting self-diagnostics S03 S01S02 S04Checking serial communications If self-diagnostics function fails to operateChecking the outdoor unit NormalRemedy for symptom 3 to Diagnostic procedureDiagnostic results Measurement location Normal valueNoise malfunction and electromagnetic interference Noise malfunctionElectromagnetic interference Checking Electrical Components Measurement of Insulation ResistanceChecking Continuity of Fuse on PCB Ass’y Checklist Before Servicing Refrigerant R410A Special Precautions When Servicing UnitCharacteristics of New Refrigerant R410A HFC32 50% / HFC125 50%No use of refrigerant other than R410A Tubing precautionsNo addition of compressor oil for R410A If refrigerant R410A is exposed to fireTubing Installation Procedures Tools Specifically for R410ACase of Compressor Malfunction Unit. This may cause dam- age to the compressor Configuration and characteristics of cylindersRecharging ExampleCase Refrigerant is Leaking Welding leaking pointsCharging Additional Refrigerant Retro-Fitting Existing SystemsOI-852-6-4180-671-00-0 Features Contents Alert SymbolsProduct Information Installation Location Safety InstructionsElectrical Requirements Names of Parts Indoor UnitOutdoor Unit Unit Display and Operation Button Remote Control Unit Display Remote Control Unit Hour OFF TimerOn Time DRY AutoHeat CoolHow to Install Batteries Using the Remote Control UnitTemperature Display Selector Button Time Display Selector buttonMounting screws 4 x 16 included Using the Remote Control UnitRear side Remote control unit mount HoleOperation with the Remote Control Unit StepPress the ON/OFF operation button Operation with the Remote Control Unit Manual OperationAdjusting the Fan Speed Setting Night Setback Mode is used for saving energyCooling and DRY Mode TemperatureQuiet Mode Special Remarks Setting the Timer Operation Indication1030 pm 710 am 1100 am Present time Setting the TimerTo cancel a timer program Press the Cancel button OFFCancellation procedure Using the 1-Hour OFF TimerSetting procedure Operation together with the Daily ON/OFF Repeat TimerAdjusting the Airflow Direction Cool Sweep DRY FAN HeatOperation without the Remote Control Unit Care and CleaningWhen the air conditioner is not running Care and Cleaning Air intake grille Anti-mold filter CleaningSuffocation in extreme cases FilterTroubleshooting Operating RangeTrouble Possible Cause Remedy Osaka, Japan SM700590 FEB/2004
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SAP-CRV93EH, SAP-CRV123EH, SAP-KRV93EH, SAP-KRV123EH specifications

The Sanyo SAP-KRV93EH and SAP-KRV123EH are innovative air conditioning units that stand out in the market for their performance, energy efficiency, and user-friendly features. Designed to cater to various cooling needs, these models are suitable for both residential and commercial spaces, ensuring comfort in every environment.

One of the main features of both models is their advanced inverter technology. This technology allows the air conditioners to adjust the compressor speed according to the desired temperature, offering precise climate control while significantly reducing energy consumption. This not only translates to lower electricity bills but also minimizes the environmental impact, making the SAP-KRV93EH and SAP-KRV123EH eco-friendly options.

The SAP-KRV93EH has a cooling capacity of 9,000 BTU, while the SAP-KRV123EH boasts an impressive 12,000 BTU. This range ensures that users can choose the appropriate unit according to the size of the room or area requiring cooling. The units are equipped with high-efficiency filters that purify the air, removing dust, allergens, and other particulates. This feature is particularly beneficial for those with allergies or respiratory issues, providing a healthier indoor environment.

In terms of user interface, both models are designed with ease of use in mind. They include a remote control that allows users to adjust settings without needing to get up. Additionally, the units have a programmable timer, ensuring that users can set the air conditioning to operate only when needed, enhancing convenience and energy savings.

Another notable technology present in these models is the “Smart Duct” airflow system. This system optimizes air distribution, allowing for an even distribution of cooled air throughout the room. This means fewer hot spots, leading to a more comfortable living or working space.

Both the SAP-KRV93EH and SAP-KRV123EH have sleek designs that blend well with various interior styles, allowing them to fit seamlessly into homes or offices. Furthermore, they operate quietly, ensuring that users can enjoy a peaceful environment.

Overall, the Sanyo SAP-KRV93EH and SAP-KRV123EH air conditioning units combine advanced technology, energy efficiency, and practical features, making them an excellent choice for those looking to enhance their comfort while being conscious of energy usage. With their robust performance and user-friendly attributes, these models epitomize what modern air conditioning solutions should offer.
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