Toshiba CEILING TYPE, CONCEALED DUCK TYPE service manual Case, Replacement procedures

Page 64

7. REPLACEMENT OF SERVICE P.C. BOARD

7-1. Indoort Unit

<Note: when replacing the P.C. board for indoor unit servicing>

The nonvolatile memory (hereafter called EEPROM, IC10) on the indoor unit P.C. board before replacement includes the model specific type information and capacity codes as the factory-set value and the important setting data which have been automatically or manually set when the indoor unit is installed, such as system/indoor/group addresses, high ceiling select setting, etc.

When replacing the P.C. board for indoor unit servicing, follow the procedures below.

After replacement completes, confirm whether the settings are correct by checking the indoor unit No., Group master unit / sub unit settings and perform the cooling cycle confirmation through the trial operation.

<Replacement procedures>

CASE 1

Before replacement, the indoor unit can be turned on and the setting data can be read out by wired remote control operation.

EEPROM data read out [1]

ò

Replacement of P.C. board for Indoor unit servicing and power on [2]

ò

Writing the read out EEPROM data [3]

ò

Power reset

(for all indoor units connected to the remote control when the group operation control is performed.)

CASE 2

Before replacement, the indoor unit cannot be turned on or the wired remote controller operation is impossible due to trouble of the power supply circuit to the remote controller. (Defective P.C. board)

Replacement of EEPROM

Remove EEPROM installed on the P.C. board before replacement

and then replace it with EEPROM of the service P.C. board.

ò

Replacement & power ON for service P.C. board [2]

ò

Read-out of EEPROM data [1]

If reading-out is impossible, proceed to CASE 3.

ò

Replacement of EEPROM

Replace EEPROM again. (Set the original EEPROM to the service P.C. board.)

ò

Replacement & power ON for service P.C. board [2]

ò

Writing-in of the read-out EEPROM data [3]

Power reset

(for all indoor units connected to the remote controller when the group operation control is performed.)

CASE 3

The EEPROM before replacement is defective and the setting data cannot be read out.

Replacement & power ON for service P.C. board [2]

ò

Writing the setting data to EEPROM, such as high ceiling installation setting and optional connection setting, etc., based on the customer information. [3]

ò

Power reset

(for all indoor units connected to the remote control when the group operation control is performed.)

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Contents Split Type Contents Troubleshooting Indoort UnitOriginal instruction Explanation of indications Explanation of illustrated marksWork undertaken Protective gear worn 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 Relocation Explanations given to userDeclaration of Conformity Specifications Safety Caution Concerned to New Refrigerant Copper pipe PipingFlare nut JointTools General tools Conventional tools can be usedConcealed Duct type SM56 type Round ductSM110 type Round duct Space required for Installation and servicing RAV-SM404MUT∗, RAV-SM454MUT∗, RAV-SM564MUT∗Dimension RAV-SM564BT∗, RAV-SM804BT∗, RAV-SM1104BT∗, RAV-SM1404BT∗RAV-SM564CT∗, RAV-SM804CT∗, RAV-SM1104CT∗, RAV-SM1404CT∗ Compact 4-way Cassette Type RAV-SM564BT ∗, RAV-SM804BT ∗, RAV-SM1104BT ∗, RAV-SM1404BT ∗ Ceiling Type RAV-SM564CT ∗, RAV-SM804CT ∗, RAV-SM1104CT ∗, RAV-SM1404CT ∗Specifications of Electrical Parts Parts name Type SpecificationsIndoor Controller Block Diagram Case of Connection of Wired Simple Remote ControllerCase of Connection of Wireless Remote Controller Wireless remote controllerMax units Outline of specifications Remarks Control outline CommandTemperature in heating Heat Outline of specifications Ceiling typeTcj TcnTc n ConditionsSetup at shipment Cooling/dry operation Heating/fan operation All operationsAlarm All modesCase of wired remote controller LCD Figure if To 28C Setup AT Local Outline of specifications Remarks MCC-1402 TCJ Exct Disp CHKIndoor P.C. Board Optional Connector Specifications MCC-1402 Summary of Troubleshooting Before troubleshootingTroubleshooting procedure Wired remote controller typeWireless remote controller type Outline of judgment Lamp indication Check code Cause of trouble occurrenceLamp indication Check code Others Other than Check Code Indoor unit detected Remote controller detectedCentral control devices detected Check Code List Error mode detected by indoor unitError mode detected by outdoor unit Air conditionerOperation of diagnostic function Check Status Power supply error of remote controller, Indoor Check code E01 error E09 errorE04 error E10 errorE08, L03, L07, L08 error E18 errorL09 error L30 error L20 errorP30 error Central controller P10 error F10 errorP12 error P19 error Check by testerExchange to cooling cycle Exchange to heating cycleF02 error F01 errorC06 error 11 model connection interface F29 error E03 error Master indoor unitP31 error Follower indoor unit Temperature Resistance value characteristic table TA, TC, TCJ, TE, TS, to sensorTA, TC, TCJ, TE,TS, to sensor TD, TL sensorPart name Checking procedure Position Resistance valueReplacement procedures CaseC. Board for indoor unit servicing replacement procedures Setting data read out from EepromCode No. required at least Contents Writing the setting data to Eeprom MCC-1402Setting data Factory-set value Setting data Type Type name abbSetting data Type Type Code NoTest Run Setup on Remote Controller Wired remote controller Compact 4-way Cassette Type and Concealed Duct TypeProcedure Description Test cooling operation Test heating operationLED Display on Indoor P.C. Board D002 Red Practical operationD203 Red Function Selection Setup Using the set temperatureTo change the selected indoor unit, proceed to Procedure To change item to be set up, proceed to ProcedureItem No. DN table Selection of function Description At shipmentDescription At shipment Wireless remote controller When connected 2 remote controllers operate an idoor unitWhen connected 2 remote controllers operate the twin Setup methodContents Calling of error history Contents Pushing Test button returns the display to usual displayGroup control operation System exampleInitial communication Indoor unit power-ON sequenceUsual regular communication Microprocessor block diagram Model connection interface wiring connectionModel Connection Interface TCC-LINK adapter Model name TCB-PCNT30TLEWiring Specifications C. Board Switch SW01 SetupHow to set up from indoor unit side by remote controller External view of P.C. board assemblyAddress setup Push Test + Vent buttons for 4 seconds or moreDuring unset time, At shipment from factory is displayed Address Setup Address setup procedureSystem configuration Address Setup & Group Control TerminologyExample Automatic Address Example from Unset Address No miswiring Only turning on source power supply Automatic completionUsing timer time Buttons, set the line address Push SET + CL + Test buttonsSimultaneously for 4 seconds or more ButtonTo know the position of indoor unit body by address ProcedureButton if the unit stops Part name Procedure Ceiling panel RBC-UM11PGWE Preparing workDetachment AttachmentPart name Procedure Remarks Part name Procedure Remarks Ceiling panel Panel has directionalityProcedure Remarks No. Part nameElectric parts box No. Part name Procedure Fan motor 1. Detachment Drain pan 1. Detachment Drain pump 1. DetachmentExchanger Recover refrigerant gas Part name Procedure Remarks HeatDetails of sensor lead wire drawing Part name Procedure Remarks RAV-SM∗∗∗BT ∗Fan motor Remove the Multi blade fan † Drain pump Remove the drain pan and float switch No. Part name Procedure Remarks 100101 102 103 209 104Location Description Model name 105404MUT-E 454MUT-E 564MUT-E 106 404MUT-TR 454MUT-TR 564MUT-TRElectric parts 401107 Location Model name108 109 RAV-SM564BT-E RAV-SM564BT-TR110 111 RAV-SM804BT-E RAV-SM804BT-TR112 113 1104BT-TRLocation Model name RAV-SM Description 114564BT-E 804BT-E 1104BT-E 1404BT-E 220 264115 Description Model name RAV-SM 116Location 117 118 Description 564CT-E 804CT-E 1104CT-E 1404CT-ECheck of Concentration Limit Toshiba Carrier Corporation

CONCEALED DUCK TYPE, CEILING TYPE specifications

Toshiba has long been a name associated with innovative and efficient HVAC solutions, and their Concealed Duck Type, Ceiling Type air conditioning units exemplify this legacy. These units are designed to provide exceptional comfort while seamlessly integrating into a variety of interior spaces.

One of the main features of the Toshiba Concealed Duck Type, Ceiling Type system is its discreet installation method. Unlike traditional wall-mounted units, this system is installed within the ceiling, allowing for an unobtrusive appearance. The result is a clean and modern aesthetic, ideal for residential and commercial settings where design is a priority. With only the supply and return grilles visible, the units maintain the integrity of the interior decor.

The technology employed in Toshiba's air conditioning systems revolves around energy efficiency and user comfort. The units are equipped with inverter technology, which allows for precise temperature control and reduces energy consumption. The inverter adjusts the compressor speed to meet the cooling or heating demand, ensuring not only optimal comfort but also reduced operational costs.

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Toshiba's advanced air filtration system further enhances indoor air quality. Integrated filters capture dust and allergens, creating a healthier indoor environment. This is particularly beneficial for individuals with allergies or respiratory concerns, as the system works to reduce airborne pollutants.

The units also offer flexible control options. With the availability of remote control or smart home integration, users can easily adjust settings to suit their preferences. Additionally, some models come with programmable timers, allowing for energy savings when the space is unoccupied.

Furthermore, these units are designed for reliability and ease of maintenance. Toshiba emphasizes durability in their construction, and the concealed installation not only enhances aesthetics but also protects the unit from potential damage. Routine maintenance can be performed efficiently, ensuring longevity and sustained performance.

In summary, Toshiba's Concealed Duck Type, Ceiling Type air conditioning units deliver a blend of innovative technology, energy efficiency, and contemporary design. With features like inverter technology, quiet operation, advanced air filtration, and flexible control options, they offer a compelling choice for those seeking comfort without compromising style. These units stand as a testament to Toshiba's commitment to quality and customer satisfaction in the HVAC industry.
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