Toshiba R410A service manual Precautions for Safety

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1 PRECAUTIONS FOR SAFETY

SM1100AT-E

SM1400AT-E

RAV-

RAV-

Ensure that all Local, National and International regulations are satisfied.

Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.

The precautions described below include the important items regarding safety. Observe them without fail.

After the installation work, perform a trial operation to check for any problem.

Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.

Turn off the main power supply switch (or breaker) before the unit maintenance.

Ask the customer to keep the Installation Manual together with the Owner’s Manual.

CAUTION

New Refrigerant Air Conditioner Installation

THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DE- STROY OZONE LAYER.

The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle.

To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the main unit and installation tools are charged from those for the conventional refrigerant.

Accordingly the exclusive tools are required for the new refrigerant (R410A).

For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does not enter. Moreover, do not use the existing piping because there are problems with pressure-resistance force and impurity in it.

CAUTION

To Disconnect the Appliance from Main Power Supply.

This appliance must be connected to the main power supply by means of a switch with a contact separation of at least 3 mm.

The installation fuse (25A D type ) must be used for the power supply line of this conditioner.

WARNING

Ask an authorized dealer or qualified installation professional to install/maintain the air conditioner.

Inappropriate installation may result in water leakage, electric shock or fire.

Turn off the main power supply switch or breaker before attempting any electrical work.

Make sure all power switches are off. Failure to do so may cause electric shock.

Connect the connecting cable correctly.

If the connecting cable is connected in a wrong way, electric parts may be damaged.

When moving the air conditioner for the installation into another place, be very careful not to enter any gaseous matter other than the specified refrigerant into the refrigeration cycle.

If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes abnor- mally high and it may resultingly causes pipe burst and injuries on persons.

Do not modify this unit by removing any of the safety guards or by by-passing any of the safety interlock switches.

Exposure of unit to water or other moisture before installation may cause a short-circuit of electrical parts.

Do not store it in a wet basement or expose to rain or water.

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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.