Related Manuals for Toshiba RAS-10NKV-A
Summarization of Contents
SPECIFICATIONS
1-1. Specifications
Detailed specifications for cooling and heating capacity, power supply, and dimensions.
1-2. Operation Characteristic Curve
Graphs illustrating current vs. compressor speed for cooling and heating modes.
1-3. Capacity Variation Ratio According to Temperature
Graphs showing capacity variation based on outdoor temperature for cooling and heating.
REFRIGERANT R410A
2-1. Safety During Installation/Servicing
Precautions for safe installation and servicing with R410A refrigerant.
2-2. Refrigerant Piping Installation
Guidelines for installing refrigerant piping, including materials and joints.
2-3. Tools
Lists tools required for R410A installation and their interchangeability with R-22.
2-4. Recharging of Refrigerant
Step-by-step procedure for recharging refrigerant according to specifications.
2-5. Brazing of Pipes
Information on brazing materials, flux, and methods to prevent oxidation.
CONSTRUCTION VIEWS
3-1. Indoor Unit
Detailed diagrams showing dimensions and parts of the indoor unit.
3-2. Outdoor Unit
Detailed diagrams showing dimensions and parts of the outdoor unit.
WIRING DIAGRAM
4-1. Indoor Unit
Wiring diagram for the indoor unit, including terminal connections and failure diagnosis checks.
4-2. Outdoor Unit
Wiring diagram for the outdoor unit, showing connections to components like compressor and fan.
SPECIFICATION OF ELECTRICAL PARTS
5-1. Indoor Unit
List of electrical parts for the indoor unit with their types and specifications.
5-2. Outdoor Unit
List of electrical parts for the outdoor unit with their types and specifications.
REFRIGERANT CYCLE DIAGRAM
6-1. Refrigerant Cycle Diagram
Schematic diagram illustrating the refrigerant flow and components of the air conditioner.
6-2. Operation Data
Table showing operation data (pressure, temperature, speed) for cooling and heating modes.
CONTROL BLOCK DIAGRAM
7-1. Indoor Unit
Block diagram showing the control functions and signals of the indoor unit.
7-2. Outdoor Unit (Inverter Assembly)
Block diagram of the outdoor unit's inverter assembly and its control functions.
OPERATION DESCRIPTION
8-1. Outline of Air Conditioner Control
Overview of the air conditioner's control system, roles of indoor/outdoor units.
8-1-1. Capacity control
Explanation of how compressor speed controls cooling and heating capacity.
8-1-2. Current release control
Mechanism to reduce compressor speed when input current exceeds limit.
8-1-3. Power factor improvement control
Method to improve power factor by controlling IGBT for reduced current consumption.
8-1-4. Prevent-freezing control
Control to prevent indoor heat exchanger freezing by reducing compressor speed.
8-1-5. P.M.V. (Pulse Modulating Valve)
Function of the Pulse Modulating Valve for varying refrigerant flow.
8-1-6. Louver control
Description of vertical air flow louver operation and setting.
8-1-7. Indoor fan control
Details on indoor fan speed control, including AUTO and manual settings.
8-2. Description of Operation Circuit
Explanation of operation circuits for different modes like cooling, dry, and heating.
8-2-1. Cooling operation
Step-by-step description of the cooling operation mode.
8-2-2. DRY operation
Description of the DRY operation mode, prioritizing dehumidification.
8-2-3. Heating operation
Detailed explanation of the heating operation mode, including fan control.
8-2-4. Automatic operation
How the unit automatically selects operation mode based on temperature.
8-2-5. Piping and Drain Hose Installation
Instructions for proper installation of piping and drain hose to prevent issues.
8-2-6. ECONO operation control
Explanation of the ECONO mode to restrain airflow and compressor speed.
8-2-7. COMFORT SLEEP operation control
Details on the COMFORT SLEEP mode activation and timer settings.
8-2-8. Hi POWER operation control
Description of the Hi POWER mode for faster cooling/heating performance.
8-2-9. QUIET operation control
Explanation of the QUIET mode for reduced noise operation.
8-3. Temporary Operation
Overview of temporary operation modes like auto and cooling start.
8-3-1. Temporary auto operation
Procedure to start temporary auto operation using the RESET button.
8-3-2. Temporary cooling operation
Procedure to start temporary cooling operation with fixed fan and compressor speed.
8-4. Auto Restart Function
Explanation of the auto restart function after power failure.
8-4-1. How to set auto restart function
Step-by-step guide on how to enable the auto restart function.
8-4-2. How to cancel auto restart function
Procedure to disable the auto restart function.
8-4-3. Power failure during timer operation
Information on timer operation cancellation due to power failure.
8-5. Filter Check Lamp
Function of the filter check lamp and how to reset it.
8-5-1. How to turn off filter check lamp
Instructions for turning off the filter check lamp.
8-6. Remote control
Overview of the remote control unit and its functions.
8-6-1. Remote control and its functions
Detailed description of each button and its function on the remote control.
8-6-2. Names and functions of indications on remote contol
Explanation of the display indicators and symbols on the remote control.
INSTALLATION PROCEDURE
9-1. Safety Cautions
General safety precautions for installation, including electrical and refrigerant handling.
9-1-1. Installation Diagram of Indoor and Outdoor Units
Diagrams showing placement and mounting of indoor and outdoor units.
9-2. INDOOR UNIT
Detailed procedures for installing the indoor unit, including placement and cutting holes.
9-2-1. Installation Place
Criteria for selecting an appropriate installation place for the indoor unit.
9-2-2. Cutting a Hole and Mounting Installation Plate
Steps for cutting wall holes and mounting the indoor unit's installation plate.
9-2-3. Electrical Work
Guidelines for electrical wiring connections for the indoor unit.
9-3. OUTDOOR UNIT
Procedures for installing the outdoor unit, including placement and piping.
9-3-1. Installation Place
Criteria for selecting an appropriate installation place for the outdoor unit.
9-3-2 Refrigerant Piping Connection
Steps for connecting refrigerant pipes, including flaring and tightening.
9-3-3. Evacuating
Procedure for evacuating air from the refrigerant circuit using a vacuum pump.
9-3-4. Wiring Connection
Instructions for connecting the power and control wiring cables.
9-3-5. Gas Leak Test
Method for testing for gas leaks after installation.
9-3-6. Test Operation
Procedure for performing a test run of the air conditioner.
9-3-7. Auto Restart Setting
Instructions on how to set the Auto Restart function.
HOW TO DIAGNOSE THE TROUBLE
10-1. First Confirmation
Initial checks for troubleshooting, including power supply and operation status.
10-1-1. Confirmation of power supply
Procedure to confirm if the power breaker is operating normally.
10-1-2. Confirmation of power voltage
Check if the input power voltage is within the specified range.
10-1-3. Operation which is not a trouble (Program operation)
Describes normal operations that may be mistaken for troubles.
10-2. Primary Judgement
Methods for initial diagnosis: LED flashing, remote control check, symptom analysis.
10-3. Judgement by Flashing LED of Indoor Unit
Interpreting LED blinking patterns for self-diagnosis of indoor unit faults.
10-4. Self-Diagnosis by Remote Control (Check Code)
Using the remote control in service mode to diagnose faults and check codes.
10-4-1. How to use remote control in service mode
Step-by-step guide to enter and navigate the remote control's service mode.
10-4-2. Caution at servicing
Important cautions to follow after performing service or diagnosis procedures.
10-5. Judgement of Trouble by Every Symptom
Troubleshooting flowcharts for various symptoms, starting with the indoor unit.
10-5-1. Indoor unit (Including remote controller)
Troubleshooting flowchart for indoor unit issues when power is not turned on.
10-5-2. Wiring Failure (Interconnected and serial signal wire)
Diagnosing issues related to wiring failures between indoor and outdoor units.
10-6. Check Code 1C (Miswiring in indoor/outdoor units) and 1E
Troubleshooting specific check codes related to miswiring and gas leakage.
HOW TO DIAGNOSE THE TROUBLE (Outdoor Unit)
10-7. How to Diagnose Trouble in Outdoor Unit
General approach for diagnosing troubles in the outdoor unit.
10-7-1. Summarized inner diagnosis of inverter assembly
Flowchart for diagnosing the inverter assembly in the outdoor unit.
10-8. How to Check Simply the Main Parts
Methods for checking main components like PC boards and motors.
10-8-1. How to check the P.C. board (Indoor unit)
Procedure for inspecting the indoor unit's PC board for defects.
10-8-3. Indoor unit (Other parts)
Checking procedures for indoor unit sensors and louver motor.
10-8-4. Outdoor unit
Checking procedures for outdoor unit components like compressor and fan motor.
10-8-5. Checking method for each part
Methods for checking electrolytic capacitors and rectifiers.
10-9. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad
Simple method to determine if the outdoor fan motor is functioning correctly.
HOW TO REPLACE THE MAIN PARTS
11-1. Indoor Unit
Procedures for removing and mounting main parts of the indoor unit.
11-2. Microcomputer
Procedure for replacing the microcomputer on the PC board.
11-3. Outdoor Unit
Procedures for removing and mounting main parts of the outdoor unit.
EXPLODED VIEWS AND PARTS LIST
12-1. Indoor Unit (E-Parts Assy)
Exploded view and parts list for the indoor unit's E-Parts assembly.
12-2. Indoor Unit
Exploded view and parts list for the main components of the indoor unit.
12-4. Outdoor Unit (E-Parts Assy)
Exploded view and parts list for the outdoor unit's E-Parts assembly.
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