Toshiba RAS-13UAV-E2 Capacity control, Compressor revolution range Operation Model, 16 to

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(3)Contents of operation command signal (Serial signal) from indoor unit controller to outdoor unit controller

The following three types of signals are sent from the indoor unit controller.

•Operation mode set on the remote control

•Compressor revolution command signal defined by indoor temperature and set tem- perature (Correction along with variation of room

temperature and correction of indoor heat exchanger temperature are added.)

•For these two types of signals ([Operation mode] and [Compressor revolution]), the outdoor unit controller monitors the input current to the inverter, and performs the followed operation within the range that current does not exceed the allowable value.

•Temperature of indoor heat exchanger by indoor heat exchanger sensor (Minimum revolution control)

(4)Contents of operation command signal (Serial signal) from outdoor unit controller to indoor unit controller

The following signals are sent from the outdoor unit controller.

•The current operation mode

•The current compressor revolution

•Outdoor temperature

•Existence of protective circuit operation

For transferring of these signals, the indoor unit controller monitors the contents of signals, and judges existence of trouble occurrence.

Contents of judgment are described below.

•Whether distinction of the current operation status meets to the operation command signal

•Whether protective circuit operates

When no signal is received from the outdoor unit controller, it is assumed as a trouble.

FILE NO. SVM-03008

8-1-1. Capacity control

The cooling and heating capacity is varied by changing compressor motor speed. The inverter changes compressor motor speed by changing

AC 220-240 V power to DC once, and controls capac- ity by changing supply power status to the compressor with transistor module (includes 6 transistors). The outline of the control is as follows:

The revolution position and revolution speed of the motor are detected by detecting winding electromotive force of the compressor motor under operation, and the revolution speed is changed so that the motor drives based upon revolution speed of the operation command by changing timing (current transfer timing) to exchange inverter output voltage and supply power winding.

Detection of the revolution position for controlling is performed 12 times per 1 revolution of compressor. The range of supply power frequency to the compressor differs according to the operation status (COOL, HEAT, DRY).

Table 8-1-1 Compressor revolution range

Operation

Model

Compressor

mode

name

revolution (rps)

 

 

 

COOL

13UKV-E2

13 to 88

 

 

HEAT

16 to 110

 

 

 

 

8-1-2. Current release control

The outdoor main circuit control section (Inverter assembly) detects the input current to the outdoor unit. If the current value with compressor motor speed instructed from indoor side exceeds the specified value, the outdoor main circuit control section controls compressor motor speed by reducing motor speed so that value becomes closest to the command within the limited value.

8-1-3. Power factor improvement control

Power factor improvement control is performed mainly aiming to reduce the current on much power consump- tion of cooling/heating operation. Controlling starts from the time when input power has reached at a certain point. To be concrete, IGBT of the power factor improvement circuit is used, and the power factor is improved by keeping IGBT on for an arbitrary period to widen electro-angle of the input current.

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Contents AIR Conditioner Contents HOW to Replace the Main Parts Specifications SpecificationsOperation Characteristic Curve Capacity Variation Ratio According to TemperatureSafety During Installation/Servicing Refrigerant Piping InstallationRefrigerant R410A Piping materials and joints used1 Thicknesses of annealed copper pipes Thickness mmOuter diameter mm R410A R22 Processing of piping materialsFlare tool for R410A Conventional flare tool Clutch type Wing nut typeWidth Diameter·m kgf·cm ·m kgf·mTools Required toolsGeneral tools Conventional tools can be used 1 Configuration of refrigerant charging Recharging of RefrigerantBrazing of Pipes Characteristics required for flux Types of flux Noncorrosive fluxActivated flux BrazingIndoor Unit 215Outdoor Unit Cover PVWiring Diagram 1 Simple Check for Failure DiagnosisCheck Item Diagnosis Result BRW Specification of Electrical Parts SpecificationsParts name RatingRefrigerant Cycle Diagram Refrigerant Cycle DiagramOperation Data Control Block Diagram RaysOutdoor Unit Inverter Assembly MCC813P.C.BOperation Description Outlined of Air Conditioner ControlPower factor improvement control Capacity control1 Compressor revolution range Operation Model Revolution rpsPrevent-freezing control 5. P.M.V. Pulse Modulating ValveLouver control Indoor fan control DC fan motorOutdoor fan control DC fan motor Model nameCompressor revolution rps From Description of Operation Circuit Cooling capacity controlLimit for maximum compressor motor speed By indoor fan speedBasic control Heating operationStarting and in stability Stability Heating capacity controlHigh-temp. release control Defrost controlAutomatic operation TimeTemporary Operation Temporary button ControlTemporary auto operation Temporary cooling operationHow to set auto restart function When the unit is on standby Not operating OperationWhen the unit is in operation Operation Auto Restart FunctionFilter Check Lamp Remote Control and its Functions Mode display Temperature displayTimer and clock time display Hi-POWER displayFile NO. SVM-03008 Installation Procedure Safety CautionsTo Disconnect the Appliance from the Main Power Supply File NO. SVM-03008 Installation Diagram of Indoor and Outdoor Units AttachOptional installation parts Part Parts name ’ty Code Fixing bolt arrangement of outdoor unitAccessory and installation parts OthersName OptionNew tools for R410A Applicable to R22 model Changes Installation place Remote controllerMounting the installation plate Cutting a holeWhen the installation plate is directly mounted on the wall Electrical workHow to remove the Drains Cap Die-cutting Front panel slitChanging drain hose How to fix the Drains Cap Case of right or left pipingLeft-hand connection with piping Case of bottom right or bottom left pipingIndoor unit fixing Drainage Run the drain hose sloped downwardsRefrigerant piping connection Flaring Projection margin in flaring a Unit mmR410A Conventional Copper pipe Tool used Copper pipe Tightening connectionUsing a vacuum pump Outer dia Tightening torque Copper pipeShaping pipes EvacuatingPacked valve handling precautions Wiring connectionStripping length of connection cable Auto restart setting How to set the auto restartGas leak test Test operationHOW to Diagnose the Trouble First ConfirmationPrimary Judgment Operation which is not a trouble Program operationOperation of air conditioner Description Indoorindication Judgment by Flashing LED of Indoor UnitSelf-Diagnosis by Remote Control Check Code How to use remote control in service modeCause of operation Short circuit. Replace Judgment of Trouble by Every Symptom Check ItemTurn on power supply Only indoor fan motor does not operate Primary check YESInspection procedure Troubleshooting for remote control Pipe clogging Check Code 1C Miswiring in indoor/outdoor units and 1E Check procedureHow to Diagnose Trouble in Outdoor Unit AGE on P.C. boardHow to Check Simply the Main Parts Diagnosis/Process flowchart Contents SummaryInspection procedures Main P.C. board partCheck procedures Procedure Check points Symptom Causes OPERATION, TIMER, PRE. DEFSensor characteristic table 10-8-2. P.C. board layoutBottom View Indoor unit Other parts Part name Checking procedure Outdoor unit Part name Checking procedureChecking Method for Each Part Part name Checking procedure Diode check Igbt checkSymptom CauseHOW to Replace the Main Parts Part name Procedures RemarksFigure below For position of the fan motor connector Microcomputer Detachment Requirement Connector is one Assembly to other parts Fan motor Perform work of item 1 of 1 Set take-out part of the lead wire of coil to Part name Board layout MCC-813 Exploded Views and Parts List Indoor Unit E-Parts AssyFront Panel Assy Cabinet, Front, Assy Outdoor Unit E-Parts Assy Toshiba Carrier Corporation

RAS-13UAV-E2, RAS-13UKV-E2 specifications

The Toshiba RAS-13UKV-E2 and RAS-13UAV-E2 air conditioning units represent a significant step forward in both comfort and energy efficiency. Designed for residential and light commercial use, these models are packed with features that cater to diverse climate control needs while adhering to modern standards of sustainability.

One of the standout features of both models is the implementation of inverter technology. This advanced system allows for more precise temperature control by adjusting the compressor speed based on the ambient temperature requirements. This not only enhances energy efficiency but also ensures a quieter operation compared to traditional air conditioning systems. As a result, users benefit from consistent comfort without the disruptive sounds often associated with cooling units.

The RAS-13UKV-E2 and RAS-13UAV-E2 also feature a high energy efficiency rating, which is crucial for reducing electricity bills. The Seasonal Energy Efficiency Ratio (SEER) is a vital measure of energy efficiency over an entire cooling season. Both units excel in this regard, making them an environmentally friendly choice. This is further supported by Toshiba's commitment to incorporating R32 refrigerant, known for its lower environmental impact compared to older refrigerants.

User convenience is enhanced with integrated smart controls. Both models are compatible with wireless remote control features, allowing for easy adjustments from a distance. This is complemented by programmable settings that let users schedule operation times, ensuring that the units run only when needed, which further optimizes energy consumption.

Design-wise, these air conditioners boast a sleek and modern appearance, making them a visually appealing addition to any room. They are constructed with durable materials that ensure longevity and reliability. Moreover, the filters are designed for easy maintenance, ensuring cleaner indoor air quality and prolonging the lifespan of the unit.

The Toshiba RAS-13UKV-E2 and RAS-13UAV-E2 units also come equipped with advanced air purification technologies. These features help to reduce airborne pollutants and allergens, contributing to a healthier indoor environment. With exceptional cooling and heating capabilities, easy installation, and advanced features, these models are designed to meet the modern user's needs for comfort, efficiency, and health. Overall, they represent an excellent investment in both cooling technology and eco-friendly practices.
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