Toshiba RAS-13UAV-E2, RAS-13UKV-E2 Starting and in stability Stability, Heating capacity control

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[In starting and in stability]

 

 

In starting

 

In stability

 

 

 

 

 

 

Until 12 minutes

When 12 to 25

 

 

passed after

 

minutes passed

 

operation start

 

after operation

 

When 12 to 25

 

start and room

FAN

 

minutes passed

 

temp. is higher

 

after operation

 

than (set temp.

AUTO

 

 

 

start and room

 

–3°C)

 

 

 

 

 

temp. is 3° C or

When 25 minutes

 

 

lower than set

 

or more passed

 

 

temp.

 

after operation

 

 

 

 

start

 

 

 

 

 

FAN

Room temp. < Set

Room temp.

Manual

 

temp. –4°C

 

Set temp. –3.5°C

 

 

 

 

 

The outdoor unit controls the outdoor fan based upon the operation signal sent from the indoor unit, and also controls revolution speed of the compressor motor.

The power coupler (IC20) for 4-way valve is turned on, and turned off in defrost operation.

(1)Heating capacity control

Calculate the difference between temperature detected by room temp. sensor every minute and the set temp. set on “Temp. indicator” and variation amount of room temp.

Then, obtain the correction amount of the com- mand signal, and correct the current frequency command signal.

(2)High-temp. release control

If temperature of the indoor heat exchanger

detected by the indoor heat exchanger sensor is 55° C or higher, compressor motor speed is gradually lowered to prevent over-temp. rising of

compressed pressure.

If temperature becomes below 48° C, return to above item (1).

(3)Current release control

The input current of compressor and outdoor fan motor (Precisely inverter main circuit control section) which occupies most of air conditioner input is detected by the outdoor current sensor. The compressor motor speed is lowered gradually according to the range of TO (outside air temp.) if the input current exceeds the current value determined in each zone as shown in Fig. 8-2-8 so that the input current does not exceed the set value.

In case that the current lowered by approx. 0.5A than each set value, return to above item (1).

 

 

FILE NO. SVM-03008

C)

TO

 

(°

 

 

temp.

16.0

9.8A

 

air

15.5

 

 

 

Outside

11.0

10.3A

 

 

10.5

 

 

 

10.8A

Fig. 8-2-8

(4)Defrost control

1)Detection of frost

In heating operation, time duration while the compressor operates is counted, and defrost operation starts by any condition described below.

a.The counted time is 28 minutes or more, and status that temperature of the outdoor

heat exchanger detected by the outdoor heat exchanger is –20°C or lower continued for 2 minutes or more.

b.The counted time is 28 minutes or more, and status that temperature of the outdoor

heat exchanger detected by the outdoor heat exchanger is –7°C or lower and temperature lowered by 2.5° C than the minimum value of the outdoor heat exchanger during 10 to 15 minutes count time continued for 2 minutes or more.

c.The counted time is 34 minutes or more, and status that temperature of the outdoor

heat exchanger detected by the outdoor heat exchanger is -5°C or lower and temperature lowered by 3.0° C than the minimum value of the outdoor heat exchanger during 10 to 15 minutes count time continued for 2 minutes or more.

d.If the following three conditions are satis-

fied, defrost operation (Timer defrost) starts after heating operation for 37 minutes.

1Setting on remote control, HEAT

(mode), HIGH (Fan), 30° C (temp.).

2Room temp. is 19° C to 24° C, and outside air temp. is 5° C or lower.

3Defrost operation has been already performed once.

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Contents AIR Conditioner Contents HOW to Replace the Main Parts Specifications SpecificationsOperation Characteristic Curve Capacity Variation Ratio According to TemperatureRefrigerant R410A Safety During Installation/ServicingRefrigerant Piping Installation Piping materials and joints usedOuter diameter mm R410A R22 1 Thicknesses of annealed copper pipesThickness mm Processing of piping materialsWidth Flare tool for R410A Conventional flare toolClutch type Wing nut type 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 Activated flux Characteristics required for fluxTypes of flux Noncorrosive flux BrazingIndoor Unit 215Outdoor Unit Cover PVWiring Diagram 1 Simple Check for Failure DiagnosisCheck Item Diagnosis Result BRW Parts name Specification of Electrical PartsSpecifications RatingRefrigerant Cycle Diagram Refrigerant Cycle DiagramOperation Data Control Block Diagram RaysOutdoor Unit Inverter Assembly MCC813P.C.BOperation Description Outlined of Air Conditioner Control1 Compressor revolution range Operation Model Power factor improvement controlCapacity control Revolution rpsLouver control Prevent-freezing control5. P.M.V. Pulse Modulating Valve 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 operationHigh-temp. release control Starting and in stability StabilityHeating capacity control Defrost controlAutomatic operation TimeTemporary auto operation Temporary OperationTemporary button Control Temporary cooling operationWhen the unit is in operation Operation How to set auto restart functionWhen the unit is on standby Not operating Operation Auto Restart FunctionFilter Check Lamp Remote Control and its Functions Timer and clock time display Mode displayTemperature 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 unitName Accessory and installation partsOthers OptionNew tools for R410A Applicable to R22 model Changes Mounting the installation plate Installation placeRemote controller 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 Left-hand connection with piping How to fix the Drains CapCase of right or left piping Case of bottom right or bottom left pipingIndoor unit fixing Drainage Run the drain hose sloped downwardsR410A Conventional Copper pipe Tool used Refrigerant piping connection FlaringProjection margin in flaring a Unit mm Copper pipe Tightening connectionShaping pipes Using a vacuum pumpOuter dia Tightening torque Copper pipe EvacuatingPacked valve handling precautions Wiring connectionStripping length of connection cable Gas leak test Auto restart settingHow to set the auto restart 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. boardInspection procedures How to Check Simply the Main PartsDiagnosis/Process flowchart Contents Summary 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.

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