Toshiba R410A Troubleshooting, Confirmation and check, Confirmation of error history

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10 TROUBLESHOOTING

Confirmation and check

When a trouble occurred in the air conditioner, the check code and the indoor unit No. appear on the display part of the remote controller.

The check code is only displayed during the operation.

If the display disappears, operate the air conditioner according to the following “Confirmation of error history” for confirmation.

 

CODE No.

 

UNIT No.

 

R.C. No.

Check code

Indoor unit No. in which

 

an error occurred

Confirmation of error history

When a trouble occurred on the air conditioner, the trouble history can be confirmed with the following procedure. (The trouble history is stored in memory up to 4 troubles.)

The history can be confirmed from both operating

3

status and stop status.

UNIT

SET CL

1

2

Procedure

Description

1

When pushing [SET] and buttons at the same time for 4 seconds or more, the following display appears.

If [Service check] is displayed, the mode enters in the trouble history mode.

[01 : Order of trouble history] is displayed in CODE No. window.

[Check code] is displayed in CHECK window.

[Indoor unit address in which an error occurred] is displayed in UNIT No.

UNIT No.

R.C. No.

CODE No.

2

3

Every pushing of [ , ] button used to set temperature, the trouble history stored in memory is displayed in order.

The numbers in CODE No. indicate CODE No. [01] (latest) [04] (oldest).

REQUIREMENT

Do not push CL button because all the trouble history of the indoor unit will be deleted.

After confirmation, push button to return to the usual display.

1.Check the troubles according to the above procedure.

2.Ask an authorized dealer or qualified service (maintenance) professional to repair or maintain the air conditioner.

3.More details of the service code are explained in Service Manual.

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Contents Split Type Accessories Adoption of NEW RefrigerantConcealed Duct Type Accessory parts and Parts to be procured locallyProgram Weekly Timer Type Applicable ControlsTo Disconnect the Appliance from Main Power Supply Precautions for SafetyNew Refrigerant Air Conditioner Installation Connect the connecting cable correctlyInappropriate grounding may cause electric shock Accessory and Installation Parts Accessory and RefrigerantSelection of Installation Before installationObstacle at rear side Upper side is free Installation PlaceNecessary Space for Installation Obstacle at front side Upper side is freeSelection of Installation Installation of Outdoor UnitFor Reference Optional Installation Parts Local ProcureRefrigerant Piping Connection Piping connectionKnockout procedure How to remove the front panelKnockout of Pipe Cover Flaring size a Unit mm Refrigerant PipingPipe Forming/End Positioning Projection margin in flaring B Unit mm FlaringRequirement Tightening of Connecting PartRefrigerant Piping Outer diam. of copper pipe Tightening torqueEvacuating Air PurgeVacuum pump Valve size How to open the valveEvacuating Charge portStripping length power cord and connecting cable SM560AT-E How to remove the valve coverHow to wire Electrical WorkFinal Installation Checks Check and Test OperationSelf-Diagnosis by LED Indication Changes in the product and components New tools for R410ANew tools for R410A Applicable to R22 model Changes Precautions for Safety RAV Length of refrigerant pipe Single unitIn installation Selection of Installation Liquid side Gas side Outer diameter Thickness Ø9.5 Ø15.9 Projection margin in flaring B Unit mm Outer dia. of copper pipe R410AOuter dia Valve at gas side Outer dia. of copper pipe Tightening torqueEvacuating How to close the valve SM1100AT-E SM1400AT-E Power supply 220 240 Single phase 50 HzMm2 or more Useful Functions Final Installation Checks Accessories Sold Separately Precautions for SafetyRemote controller RAV-SM561BT-E/RAV-SM801BT-E RAV-SM1101BT-E/RAV-SM1401BT-E Parts Name Indoor unitOutdoor unit Parts Name of Remote Controller Display sectionOperation section Preparation Turn on the main power switch and/or the leakage breakerCorrect Usage StopWhen restarting the operation after stop Mode select button ModeTemperature button StartTimer Operation Timer operationClear of timer operation Window curtains Hints for Economical OperationDo not open doors and windows more often than necessary Get uniform circulation of room airIf you do not plan to use the unit for more than 1 month MaintenanceCleaning of remote controller Checks before operationAIR Conditioner Operations and Performance Troubles and Causes RE-INSTALLATIONDo not install the air conditioner in the following places Be careful with noise or vibrationsInoperative Auto Part name ’ty Shape Standard wired remote Controller Separate sold partsPart name ’ty Shape Precautions for Safety Inappropriate grounding may cause electric shock Advice Selection of Installation PlaceInstallation space Selection of installation place Secure the space required to installation and servicingInstallation of Indoor Unit Installation procedureExternal view Installation of Indoor UnitDimension RAV-SM1101, 1401BTHanging down of indoor unit Installation of remote controller Sold separatelyMounting of clamp Accessory Clamp mounting Removal of air filterLedge ceiling concealed duct type Restriction to installationInstallation clearance Quality of supplying grillesStatic pressure characteristics of each model AIR Ducting WorkAIR Ducting Work RAV-SM1101BT Round ductConnecting method of the duct Points at installation work General cautionsMounting of remote controller Hanging of indoor unitMounting of filter and canvas for suction port Piping and cautions Drain Piping WorkPiping material Thermal-insulating processCheck of water drain Drain-upConnection of the drain hose After electric piping workTightening connection Permissible piping length and heatFlaring dia meter size a Unit mm Tightening torque of flare pipe connectionsGas leak check Packed valve handling precautionsOpen valve fully Use a vacuum pumpFor 801, 1101, 1401AT model 801, 1101, 1401 type valve at gas sideElectrical Work Electrical Work Remote controller cablingCabling diagram CablingTest RUN How to execute a test runCase of wired remote controller Before test runProcedure Description TroubleshootingConfirmation of error history Confirmation and checkApplicable Controls NotificationAutomatic address Applicable Controls Setup of external static pressureWhen using wireless remote controller To incorporate a filter sold separatelyChange of lighting time of filter sign To secure better effect of heatingCleaning of Return grille INSTALLATION/SERVICING ToolsMaintenance Clean the Return grilles with waterAccessories ContentsHow to check the program operation time FeaturesTurn on the power supply of the air conditioner RBC-EXW21EHoliday setting indication mark Timer set buttonCancel button Setting error display Present time displaySetup of the day of the week Operation procedureTurn on the power supply of the air conditioner HeatingWhen ON/OFF time is set as follows, Error is displayed When push SET Button,Set error Next set up the operation time to the program 2To be checked Clearance of Holiday setupPush DAY button and put the operation Clear of a part of the programMatters to be memorized Power failure Operation of program weekly timer and air conditionerResuming of operation RBC-AS21E Selected mode displays Cooling only type Temperature Setup buttonSelected mode displays Heat pump type Start/Stop button Check button Used in servicingAutomatic Cool/Heat Power supplyPush either or set to Auto Recommended temperature Push button Push button to select fan speedRequirement for installation Multiple remote controllers Accessory partsHow to install remote controller Requirement to install Remote controllerRemote controller test run setup Accessory partsRequirement for installation Multiple remote controllers How to perform cabling of the remote controllerRequirement to install Program weekly timer Accessory parts Part Name ’tyHow to install the program weekly timer Program weekly timer test run setupAccessory parts Requirement to install the remote sensorHow to install the remote sensor Installation of filter sold separately SpecificationsSafety Cautions Maintenance of filter sold separatelyHigh-Efficiency Filter Installation of high-efficiency filterSetup of fan when building in the high-efficiency filter High-Efficiency filter 65% Model TCB-UFM11BEDeodorant Filter Model TCB-DF11BE Setup of fan when building in the filter sold separatelyDeodorant Filter, Ammonium Filter Ammonium Filter Model TCB-DF11BE-AM

R410A specifications

Toshiba R410A is a highly regarded refrigerant known for its efficiency and environmental benefits. This hydrofluorocarbon (HFC) mixture is widely used in various air conditioning and refrigeration applications due to its excellent thermodynamic properties. One of the standout features of R410A is its superior energy efficiency, which contributes to lower energy consumption and reduced CO2 emissions in HVAC systems.

One significant advantage of R410A over older refrigerants, such as R22, is its lower ozone depletion potential (ODP). R410A has an ODP of zero, making it a more environmentally friendly choice. This characteristic aligns with global initiatives aimed at protecting the ozone layer and promoting sustainable practices. The shift to R410A has been supported by government regulations in many countries, phasing out older, more harmful refrigerants.

Toshiba has incorporated advanced technologies in its R410A compatible products, enhancing performance and reliability. Among these technologies is the inverter technology that allows the compressor to operate at variable speeds. This functionality leads to improved temperature regulation, reduced noise levels, and further energy savings. Inverter systems provide precise control over the cooling and heating processes, allowing for a comfortable indoor environment while minimizing wastage of energy.

R410A also exhibits excellent heat transfer properties, which boosts cooling capacity. This feature makes it suitable for large-scale HVAC systems, including commercial and industrial applications. Its high-pressure characteristics enable the design of more compact and efficient components, allowing for smaller units and easier installation.

Furthermore, Toshiba's dedication to technological innovation is visible in its commitment to research and development. The company continuously strives to optimize systems that utilize R410A, focusing on reliability and longevity. This includes improved compressor designs, enhanced heat exchangers, and the integration of smart controls that adapt to the varying load conditions in real-time.

In terms of safety, R410A is classified as non-toxic and non-flammable under normal conditions, making it a safe choice for use in residential and commercial settings. However, it is important to note that R410A operates at higher pressures compared to traditional refrigerants, necessitating proper equipment design and handling procedures.

In conclusion, Toshiba R410A stands out in the market for its energy efficiency, environmental safety, and technological advancements. It is an ideal refrigerant for modern HVAC applications, contributing to both comfort and sustainability. As the industry continues to evolve, R410A remains a pivotal element in the quest for responsible and efficient refrigeration solutions.