Toshiba RAS-10SAX, RAS-10SKX Misleading but Good Operations Program Controlled Operation

Page 33

9-1-3. Misleading but Good Operations (Program Controlled Operation)

The microcomputer performs the operations listed in Table 9-1-1 to control the air conditioner. If a claim is made on the operation, check whether it corresponds to the contents in the Table 9-1-1. If it does, it is an indispensable operation for the control and mainte- nance of the air conditioner: it is not a failure of the unit.

 

 

Table 9-1-1

 

 

 

No.

Operation of air-conditioner

Description

 

 

 

1

When the power plug or the power cord

The OPERATION lamp flashes, indicating that power is turned

 

of the indoor unit is inserted, the

on. If this happens, push the START/STOP button once to cause

 

OPERATION lamp on the setting

the lamp to stop flashing. A power outage also causes the lamp

 

indication part flashes.

to flash.

 

 

 

2

Fan speed remains unchanged in the dry

Fan speed is automatically controlled in the dry mode.

 

mode.

 

 

 

 

3

Room temperature is in the range under

The compressor will not stop while the compressor on hold timer

 

which the compressor is turned off, but

(3-minutes timer) is actuated.

 

the compressor will not stop.

 

 

 

 

4

The compressor will not switch on or off

In the dry mode, the compressor goes on and off at regular

 

even when the thermo control is operated

intervals, independent of the thermo control.

 

in the dry operation.

 

 

 

 

5

Compressor does not work though room

Compressor does not work while the compressor restart delay

 

temperature is in the range of turning the

(3-min.) timer is active. The same is true after power is turned

 

compressor on.

on, as the time is still active.

 

 

 

6

During automatic operation, the

After selection of the cooling and dry operation, the operation

 

operation mode changes.

mode is selected again when the compressor off mode continues

 

 

for 15 min. according to the room temperature. And after selection

 

 

of the dry operation, the condition of the room temperature which

 

 

is Room temp. ³Set temp.+1 and which is Room temp.<Set

 

 

temp.–4 continues for 15 min., the operation mode is selected

 

 

again.

 

 

 

7

When the power is turned on, the

When the auto restart controlling is selected, the operation is

 

operation starts automatically.

performed automatically in the previous operation mode after

 

 

the power supply has been turned on.

 

 

 

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Contents R C O Contents Troubleshooting Flowcharts What to be Prechecked FirstPrimary Judgement of Trouble Sources RAS-10SK-E/10SA-E RAS-10SKX/10SAX Cooling SpecificationsCondition JIS C9612-1994 Temperature Cooling Indoor Unit Construction ViewsRAS-10SA-E RAS-10SAX Outdoor UnitMain P.C. Board Wiring DiagramParts name Type Specifications Specifications of Electrical PartsRAS-10SK-E / RAS-10SA-E RAS-10SKX / RAS-10SAX Refrigerant Cycle DiagramAUTO, COOL, DRY, FAN only MICRO-COMPUTER Block DiagramFAN only Operation Operation DescriptionsCool Operation M3/hLouver Control DRY OperationTemporary Auto Auto OperationECONO. Mode Low-Temperature Limit Control Cooling OperationCooling Auto Restart Function How to Set the Auto RestartCase of Power Failure during the Timer Operation How to Cancel the Auto RestartSafety Cautions For general public use Installation ProcedureUK Plugs and Sockets etc Safety Regulations SI Number Attach Installation Diagram of Indoor and Outdoor UnitsInstallation Installation PartsOptional Parts Cutting a Hole and Mounting Installation Plate Installation placeRemote control Mounting the installation plateElectrical Work When the installation plate is directly mounted on the wallHow to remove the front cabinet Wiring ConnectionHow to open the screw cap Taking out the power cordHow to install the front cabinet on the indoor unit Stripping length of connecting cableCase of rightward piping Piping and Drain Hose InstallationCase of downward piping Left-hand connection with pipingDrainage Indoor Unit InstallationStrong wind Vacuum Pumping Refrigerant Piping ConnectionFlaring Tightening connectionA5 mm hexagon wrench is required Packed Valve Handling PrecautionsHow to set the Auto Restart Auto Restart SettingOthers Gas Leak TestPower Supply Voltage Troubleshooting ChartWhat to be Prechecked First Incorrect Cable Connection between Indoor and Outdoor UnitsOperation of air-conditioner Description Misleading but Good Operations Program Controlled OperationPrimary Judgement of Trouble Sources Role of Indoor Unit ControllerBlock display Selecting ordinary mode Self-diagnosis with remote controlOperating key Indication after operation Self-diagnosis by check codesCondition Code Status Troubleshooting Flowcharts Power can not be Turned on No Operation at AllPreliminary checks Power can not be Turned on after Replacing Indoor PC Board Checking ProcedureOutdoor Unit does not Operate Only Compressor does not Operate Only Outdoor Fan does not Operate Only the Indoor Fan does not Operate Check procedureThere is no beep from Operating precautions How to Check the PC BoardInspection procedures Main PC board partProcedure Check Point Symptom Causes Top View Bottom View PC Board LayoutSensor How to Reduce the Operation Time of the Anti-Restart TimerIndoor Unit RAS-10SK-E, RAS-10SKX Part ReplacementPart name Procedure Remarks Microcomputer RAS-10SK-E, RAS-10SKX Outdoor Unit RAS-10SA-E, RAS-10SAX OFF Part Description Exploded Views and Parts ListIndoor Unit Capillary Tube