Toshiba RAV-SM2802DT-TR, RAV-SM2802DT-E, RAV-SM2242DT-TR Tc, Tcj, Tcn, Conditions Tc n

Page 26

No.

Item

Outline of specifications

Remarks

 

 

 

 

7

Freeze preventive control

1) The cooling operation is performed as follows

Tc, Tcj:

 

(Low temperature release)

based on the detected temperature of Tc sensor or

Indoor heat exchanger

 

 

Tcj sensor.

 

 

sensor temperature

 

 

When [J] zone is detected for 6 minutes

 

 

 

 

 

(Following figure), the commanded frequency is

 

 

 

decreased from the real operation frequency.

 

 

 

After then the commanded frequency changes

 

 

 

every 30 seconds while operation is performed in

 

 

 

[J] zone.

 

 

 

In [K] zone, time counting is interrupted and the

 

 

 

operation is held.

 

 

 

When [ I ] zone is detected, the timer is cleared

 

 

 

and the operation returns to the normal operation.

 

 

 

If the commanded frequency becomes S0

 

 

 

because the operation continues in [J] zone, the

 

 

 

return temperature A is raised from 5°C to 12°C

 

 

 

until [ I ] zone is detected and the indoor fan

 

 

 

operates with [Fan] mode.

 

(˚C)

5

I

A

K

2

J

In heating operation, the freeze-preventive control

Tcn:

works if 4-way valve is not exchanged and the

Tc temperature when

following conditions are satisfied.

5 minutes elapsed after

(However the temperature for J zone dashing

activation

control is changed from 2°C to –5°C.)

 

<Conditions>

Tc (n – 1):

Tc temperature at start

• When Q or R is established 5 minutes after

time

activation.

 

Q Tcn Tc (n – 1) – 5

 

R Tcn < Tc (n – 1) – 1 and Tcn Ta < 5°C

 

– 26 –

Image 26
Contents Split Type Contents Original instruction Work undertaken Protective gear worn Explanation of indicationsExplanation of illustrated marks Indication ExplanationConfirmation of warning label on the main unit DescriptionPrecaution for Safety Proceeding with the repair work Refrigerant used by this air conditioner is the R410A Resistance and water drainage Explanations given to user SpecificationsModel Sound power level dB Weight kg Cooling Heating RelocationCopper pipe Piping Safety Caution Concerned to New RefrigerantPipe Materials Flare nutR410A Conventional air ToolsGeneral tools Conventional tools can be used Used tool UsageConcealed Duct High static pressure Type Model Indoor unitConcealed Duct High static pressure Type Contined RAV-SM2242DT-TR RAV-SM2802DT-TRIndoor Unit SM2242DT-EDimension table Indoor unitIndoor UnitRAV-SM2242 type 100RAV-SM2802 type 350 300 250 200 150 100 3200 3360Standard Middle static pressure F2 Wire connection change of fan motorLow static pressure F1 High static pressure F3Specifications of Electrical Parts Parts name Type SpecificationsIndoor unit #1 Header Indoor Controller Block DiagramConnection of Wired Simple Remote Controller Outdoor unitOutside temp Correction value a Outline of specifications RemarksControl outline Setup data Indoor formationTa ˚C Cooling +1.5 Conditions Tc n Tc, TcjTcn Setup at shipment Control temp. CCase of wired remote controller HeatUsual control Print Circuit Board MCC-1403Optional Connector Specifications of Indoor P.C. Board Function Connector Pin Specifications RemarksWired remote controller type Before troubleshootingTroubleshooting procedure How to read check monitor display Main remote controller RBC-AMT32EConfirmation of error log ProcedureRemote controller switch monitoring function Central control devices detected Check Code List Indoor Indoor unit detectedRemote controller detected Cause of operation Status Error mode detected by indoor unitOperation of diagnostic function Judgment and measures Series Error mode detected by outdoor unitAfter H03 Current detection circuit error Stop Power supply error of remote controller, Indoor E09 error YESE04 error E10 errorL09 error E18 errorE08, L03, L07, L08 error P30 error Central controller L20 errorL30 error P10 error P01 errorP19 error F02 error F01 errorC06 error 11 model connection interface P31 error Follower indoor unit E03 error Master indoor unitF29 error TA, TC, TCJ sensors Temperature Resistance value characteristic tableTemperature sensor TA, TC, TCJ Representative valuePart name Checking procedure Resistance valueReplacement of Service P.C. Board Replacement proceduresCode No. required at least Contents Setting data read out from EepromC. Board for indoor unit servicing replacement procedures Operation is available again Writing the setting data to EepromStep Type Code No Indoor unit capacity Code NoTest Run Setup on Remote Controller Wired remote controller Practical operationD203 Red Function Selection SetupLED Display on Indoor P.C. Board D002 Red TEMP. buttons, specify the Code No. DNContents Function selection item No. DN listHow to set wired remote controller as sub remote controller Wired remote controllerSetup method When connected 2 remote controllers operate an indoor unitContents Pushing Test button returns the display to usual display Calling of error historyGroup control operation System exampleIndoor unit power-ON sequence Power onModel Connection Interface Function Microprocessor block diagramModel connection interface wiring connection Model name TCB-PCNT30TLE2Wiring specifications C. board switch SW01 setupPush Test + Vent buttons for 4 seconds or more External view of P.C. board assemblyAddress setup Push Test buttonDuring unset time, At shipment from factory is displayed Code No Data at shipment Setup data range System Configuration Address Setup & Group Control TerminologyAutomatic Address Example from Unset Address No miswiring Only turning on source power supply Automatic completionPush SET Button. OK when display goes on Push Test Using the temperature setup ButtonsUsing timer time Buttons, set the line address PushTo know the position of indoor unit body by address ProcedureConfirmation of indoor unit No. position Contents Precautions for Safety Concealed Duct High Static Pressure Relocation Symbol DescriptionExamples of indication on the carton Other cautions DescriptionDisplay section Wired Remote ControllerPart Names Operation section Start Correct UsagePreparation StopPush button during operation Timer OperationPower Saving Mode SetEnergy Saving Recommendations Advanced SettingsPower saving mode Maintenance List MaintenanceCleaning air filters Preparing for long Shut Down PeriodAIR Conditioner Operations and Performance InstallationDo not install the air conditioner in the following places Be careful with noise or vibrationsTroubleshooting SpecificationsInstallation Manual Definition of Protective Gear Work undertaken Protective gear wornGeneral Selection of installation locationElectrical wiring Refrigerant pipingTo Disconnect the Appliance from Main Power Supply Accessory PartsNew Refrigerant Air Conditioner Installation Installation space Unit mm Selection of Installation PlaceInstallation under high-humidity atmosphere Filter cleaning sign term settingInstallation of indoor unit External DimensionsInstallation of hanging bolt Installation of hanging boltDuct design Diagrams for making connecting flangesDuct installation example First floor Air outlet port flangeRAV-SM2802 Type FAN CharacteristicsRAV-SM2242 Type Low static pressure F1 Wire connection change of fan motorDrain Piping Work Standard Middle static pressure F2Drain up Connecting drain pipePipe material, size and insulator Check the drainingRefrigerant Piping Refrigerant Piping and EvacuatingHeat insulating process Liquid side refrigerant pipe connectionGas side refrigerant pipe connection EvacuationPower and Wiring Specification Wire connectionWiring diagram Electrical ConnectionWiring diagram Remote Controller WiringChanging of setting applicable control Applicable ControlsConcealed Duct High Static Pressure Procedure Remote controller switch monitoring functionFilter sign setting To secure better effect of heatingInstallation Manual Procedure Procedure exampleManual address setup procedure Group controlProcedure 8C OperationBefore test run Daily maintenanceTest RUN Execute a test runConfirmation and check Confirmation of error logConcealed Duct High Static PressureInstallation Manual Error codes and parts to be checked StatusFan assembly How to replace the parts Fan assembly and replacementPart name Work procedure Remarks Pull out the fan assembly a fan toward you Fan/Fan case104 Fan motor Location Description 2242DT-E215, 216 219 218 214218 213 108 Check of Concentration Limit Toshiba Carrier Corporation
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RAV-SM2802DT-TR, RAV-SM2242DT-TR, RAV-SM2802DT-E specifications

Toshiba has long been a leader in heating, ventilation, and air conditioning (HVAC) technology, offering innovative solutions that cater to both residential and commercial needs. Among their impressive lineup, the Toshiba RAV-SM2802DT-E and RAV-SM2242DT-E stand out as exceptional models designed for efficiency, performance, and comfort.

The RAV-SM2802DT-E is a powerful unit ideal for larger spaces, boasting a cooling capacity of 28,000 BTU/h and a heating capacity of 31,000 BTU/h. This model features a highly efficient inverter compressor, which adjusts the power consumption based on the cooling or heating demand, ensuring optimal energy use. This inverter technology not only reduces energy consumption but also maintains a stable indoor temperature for enhanced comfort.

On the other hand, the RAV-SM2242DT-E is tailored for mid-sized applications with a cooling capacity of 22,000 BTU/h and a heating capacity of 25,000 BTU/h. This model also embraces inverter technology, promoting lower operational costs while delivering reliable performance. Both units come with a high energy efficiency rating, reducing environmental impact and saving on utility bills.

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Both the RAV-SM2802DT-E and RAV-SM2242DT-E are designed with user convenience in mind. They come with a user-friendly remote control, allowing for easy adjustments and settings from anywhere in the room. Compatibility with smart home systems further enhances user experience by enabling remote monitoring and control through smartphones or tablets.

Constructed with durability in mind, these units are built to withstand diverse weather conditions, making them suitable for various climatic environments. Additionally, their aesthetic design allows for seamless integration into any setting, ensuring that performance does not compromise on looks.

In summary, Toshiba's RAV-SM2802DT-E and RAV-SM2242DT-E offer a blend of superior technology, energy efficiency, and user-friendly features. With their inverter technology, advanced filtration systems, and durable designs, these models represent Toshiba's commitment to quality and innovation in the HVAC industry. Whether for residential or commercial applications, these units guarantee comfort and reliability all year round.