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Toshiba RAS-16SKV2-E User Manual

Toshiba RAS-16SKV2-E
111 pages
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R410A
SERVICE MANUAL
SPLIT TYPE
Indoor Unit Outdoor Unit
<High Wall, Heat Pump Type> <Heat Pump Type>
RAS-10SKV2-E RAS-10SAV2-E
RAS-13SKV2-E RAS-13SAV2-E
RAS-16SKV2-E RAS-16SAV2-E
January, 2010
FILE NO. SVM-10001

Table of Contents

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Toshiba RAS-16SKV2-E Specifications

General IconGeneral
Cooling Capacity4.5 kW
Heating Capacity5.4 kW
Seasonal Energy Efficiency Ratio (SEER)6.1
Power Supply230V / 50Hz / 1Ph
RefrigerantR410A
Weight (Indoor Unit)9 kg
Coefficient of Performance (COP)3.61
Indoor Unit Weight9 kg
TypeSplit Type Air Conditioner
Noise Level (Outdoor)50 dB(A)

Summary

1. SAFETY PRECAUTIONS

General Servicing Precautions

Covers reading manual, trial operation, and turning off power before maintenance.

R410A Refrigerant Installation Safety

Highlights safety for new refrigerant R410A, impurities, tools, and piping.

Electrical Safety and Connection

Covers power supply, circuit breaker, grounding, and high voltage precautions.

Installation Environment and General Warnings

Covers location, refrigerant mixing, modification, weight, leaks, wiring, grounding, water, vibration.

2. SPECIFICATIONS

Model Specifications Overview

Provides detailed technical specifications for various models across tables.

Operation Characteristic Curves

Displays graphical data illustrating compressor speed vs. current for cooling and heating.

Capacity Variation Ratio by Temperature

Shows how cooling and heating capacity changes with outdoor temperature.

3. REFRIGERANT R410A

Installation and Servicing Safety

Covers safety precautions for R410A during installation and servicing.

Refrigerant Piping Installation

Details requirements for installing refrigerant piping, materials, and joints.

Piping Material Processing

Covers pipe cutting, burrs, flare nut insertion, and flare processing.

Flare Processing Dimensions

Provides dimensions for flare processing for R410A and R22.

Flare Nut Dimensions

Details dimensions for flare nuts used with R410A.

Flare Connecting Procedures and Precautions

Covers correct flare connection and tightening torque.

3-3. Tools

Required Tools for R410A Installation

Lists tools exclusive to R410A and their interchangeability.

General Tools for Installation

Lists common tools also usable for R22.

3-4. Recharging of Refrigerant

Refrigerant Charging Procedure

Step-by-step guide for charging refrigerant, including setup and safety.

3-5. Brazing of Pipes

Brazing Materials

Lists silver, phosphor bronze, and low temp. brazing fillers.

Flux Usage and Types

Explains why flux is needed and its different types.

Brazing Method for Oxidation Prevention

Describes using nitrogen gas during brazing to prevent oxidation.

Piping Materials for Brazing

Table showing piping materials, filler, and flux compatibility.

4. CONSTRUCTION VIEWS

Indoor Unit Construction Details

Provides diagrams and dimensions for the indoor unit's components.

Outdoor Unit Construction Details

Provides diagrams and dimensions for the outdoor unit's components.

5. WIRING DIAGRAM

Indoor/Outdoor Unit Wiring (Models 10/13)

Wiring diagram illustrating connections for models 10 and 13.

Indoor/Outdoor Unit Wiring (Model 16)

Wiring diagram illustrating connections for model 16.

6. SPECIFICATIONS OF ELECTRICAL PARTS

Indoor Unit Electrical Parts

Lists electrical parts and specifications for the indoor unit.

Outdoor Unit Electrical Parts

Lists electrical parts and specifications for the outdoor unit.

7. REFRIGERANT CYCLE DIAGRAM

Refrigerant Cycle Diagram (Models 10/13)

Illustrates the refrigerant flow for models 10 and 13.

Refrigerant Cycle Diagram (Model 16)

Illustrates the refrigerant flow for model 16.

7-2. Operation Data

Cooling Operation Data

Provides operational data for cooling mode, including pressure and temperatures.

Heating Operation Data

Provides operational data for heating mode, including pressure and temperatures.

8. CONTROL BLOCK DIAGRAM

Indoor Unit Control Block Diagram

Shows control logic and components for the indoor unit.

Outdoor Unit Control Block Diagram

Illustrates control logic and components for the outdoor unit.

9. OPERATION DESCRIPTION

Overall Control System Overview

Describes the air conditioner's control system, roles, and communication.

Detailed Operation Modes

Lists and briefly describes various operation modes like ECO, Temporary, etc.

Auto Restart Function Setup

Covers setting and cancelling the auto restart feature.

Remote Controller Functions and Operations

Describes remote controller parts and how to use its functions.

Basic Operation Control Flow

Illustrates the basic operation flow and control.

Cooling/Heating Operation Details

Explains the logic and control for cooling and heating operation modes.

AUTO Operation Logic

Describes the logic and flow for AUTO operation mode.

DRY Operation Logic

Explains the logic and control for DRY operation mode.

Indoor Fan Motor Control (Cooling)

Details indoor fan speed control in cooling operation.

Indoor Fan Motor Control (Heating)

Details indoor fan speed control in heating operation.

Outdoor Fan Motor Control

Explains outdoor fan speed control logic and tables.

Capacity Control Logic

Describes how cooling/heating capacity is adjusted by compressor speed.

Current Release Control Logic

Explains function to prevent inverter part damage by controlling current.

Indoor Heat Exchanger Protective Control

Protective control based on indoor heat exchanger temperature.

Defrost Control (Heating Operation)

Describes defrost operation for heating mode.

Louver Control Functions

Explains louver position, adjustment, and swing operations.

ECO Operation Mode

Describes the energy-saving ECO operation.

Temporary Operation Mode

Explains temporary operation via reset button.

Discharge Temperature Control

Control based on discharge temperature for error detection.

Pulse Modulating Valve (P.M.V.) Control

Describes control of refrigerant flow via PMV.

Self-Cleaning Function

Explains the self-cleaning operation for hygiene.

Remote Controller A/B Selection

Describes how to set remote control for multi-unit systems.

QUIET Mode Operation

Describes the low-noise QUIET mode.

COMFORT SLEEP Mode

Explains the COMFORT SLEEP mode for energy saving.

One-Touch Comfort Operation

Describes the automated one-touch comfort setting.

Hi-POWER Mode Operation

Explains the Hi-POWER mode for rapid cooling/heating.

FILTER Indicator Reset

Instructions on how to reset the filter indicator.

9-3. Auto Restart Function

Setting the Auto Restart Function

Step-by-step guide to enable the auto restart feature.

Canceling the Auto Restart Function

Steps to disable the auto restart feature.

Power Failure During Timer Operation

Behavior during power failure when timer is active.

9-4. Remote control

Remote Control Overview and Functions

Identifies buttons and basic functions of the remote controller.

Remote Control Operation Modes

Describes operations like ONE-TOUCH, AUTO, COOL/HEAT/FAN.

Remote Control Operation Modes (Continued)

Continues operation modes: DRY, Hi-POWER, ECO, TEMPORARY, TIMER.

PRESET Operation Mode

Setting and operating preset preferences.

AUTO RESTART OPERATION

Setting auto restart after power failure.

QUIET Operation Mode

Describes the quiet operation mode.

COMFORT SLEEP Operation

Explains comfort sleep mode for energy saving.

SLEEP TIMER OPERATION

Setting sleep timer for operation.

9-4-3. Name and Functions of Indications on Remote Controller

10. INSTALLATION PROCEDURE

Indoor and Outdoor Unit Installation Diagram

Visual guide for unit placement and piping.

Optional Installation Parts

Lists parts needed for installation.

Outdoor Unit Fixing Bolt Arrangement

Details how to secure the outdoor unit with bolts.

Included Accessories and Installation Parts

Lists items supplied with the unit for installation.

Installation and Servicing Tools for R410A

Highlights new tools required for R410A systems.

10-3. Indoor Unit

Indoor Unit Installation Location

Guidelines for choosing a suitable indoor unit location.

Drilling and Mounting Installation Plate

Instructions for drilling holes and mounting the installation plate.

Electrical Work Requirements

Details electrical supply and wiring standards.

Connecting Cable Wiring

Procedure for wiring the connecting cable.

Piping and Drain Hose Installation

Instructions for routing pipes and drain hose.

Drain Cap and Hose Attachment

Steps for attaching the drain cap and hose.

Indoor Unit Installation Procedure

Steps for mounting the indoor unit onto the installation plate.

Drainage Instructions

Proper drainage setup and precautions.

10-4. Outdoor Unit

Outdoor Unit Installation Location

Guidelines for selecting a suitable outdoor unit location.

Outdoor Unit Water Drainage

Procedure for draining water from the outdoor unit base.

Refrigerant Piping Connection

Details on flaring and connecting refrigerant pipes.

Flare Connection Tightening

Correct torque and procedure for tightening flare connections.

Evacuating Procedure (Air Purge)

Steps for evacuating air from the refrigerant system.

Packed Valve Handling Precautions

Guidelines for handling packed valves.

Outdoor Unit Wiring Connection

Procedure for connecting the outdoor unit wiring.

10-5. Test Operation

Gas Leak Test

How to check for gas leaks after installation.

System Test Operation

Procedure to test the installed system.

Auto Restart Function Setting

How to enable the auto restart feature.

Remote Controller A/B Selection

Setting remote controller for multiple indoor units.

11. HOW TO DIAGNOSE THE TROUBLE

Troubleshooting Procedure Overview

Lists general steps for diagnosing issues.

Inverter (3DV) Precautions

Safety warnings for handling the new inverter.

Outdoor Unit Control Section Inspection

Precautions and procedure for inspecting the outdoor unit controller.

First Confirmation Checks

Checks for normal power supply, voltage, and non-trouble operations.

Troubleshooting Using Indoor Unit LEDs

Interpreting flashing LEDs for self-diagnosis.

Using Remote Controller in Service Mode

Guide on how to use the remote for self-diagnosis.

Servicing Cautions and Check Code Table

Cautions during servicing and details of error check codes.

Check Code Details and Actions

Lists various check codes and corresponding troubleshooting actions.

Indoor Unit Symptom Diagnosis

Troubleshooting steps for indoor unit issues.

Indoor Unit Symptom Diagnosis (Power Issues)

Troubleshooting power-on issues for the indoor unit.

Indoor Fan Motor Troubleshooting (Cooling)

Diagnosing indoor fan motor issues in cooling operation.

Indoor Fan Motor Troubleshooting (General)

Diagnosing indoor fan motor issues for model 16SKV2-E.

Indoor Fan Motor Auto-Rotation Diagnosis (DC Motor)

Diagnosing auto-rotation for DC fan motors.

Indoor Fan Motor Auto-Rotation Diagnosis (AC Motor)

Diagnosing auto-rotation for AC fan motors.

Remote Controller Troubleshooting Guide

Steps to diagnose remote controller problems.

Wiring Failure Diagnosis

Troubleshooting wiring issues between indoor and outdoor units.

Main Parts Checking Procedures

Procedures for checking key components like pulse motor valve.

Inverter Assembly Diagnosis Summary

Summarizes diagnosis steps for the inverter assembly.

Indoor Unit PC Board Checking

Procedures for checking the indoor unit PC board.

Indoor Unit Check Procedures (Models 10/13)

Detailed check procedures for specific models.

Indoor Unit Check Procedures (Model 16)

Detailed check procedures for model 16.

Indoor Unit PC Board Layout and Sensor Table

Diagram of PC board and sensor resistance characteristics.

Indoor Unit Component Checks

Checking procedures for indoor unit components like sensors and motors.

Outdoor Unit Component Checks

Checking procedures for outdoor unit components like compressor and motors.

Part Checking Methods

Detailed checking methods for capacitors and converter modules.

Outdoor Fan Motor Diagnosis

Method to determine if the outdoor fan motor is good or bad.

12. HOW TO REPLACE THE MAIN PARTS

Indoor Unit Parts Replacement Overview

General precautions and introduction to indoor unit parts replacement.

Front Panel Replacement

Procedure for removing and installing the front panel.

Electric Parts Box Assembly Replacement

Procedure for replacing the electric parts box assembly.

Horizontal Louver and Evaporator Replacement

Procedures for replacing the horizontal louver and evaporator.

Bearing Replacement

Procedure for replacing the bearing.

Fan Motor Replacement

Procedure for replacing the fan motor.

Cross Flow Fan Replacement

Procedure for replacing the cross flow fan.

12-2. Microcomputer

Microcomputer Replacement Procedure

Procedure for replacing the microcomputer.

12-3. Outdoor Unit

Outdoor Unit Detachment and Attachment

General steps for disassembling and reassembling the outdoor unit.

Front Cabinet Replacement

Procedure for removing and installing the front cabinet.

Inverter Assembly Replacement

Procedure for replacing the inverter assembly.

Control Board Assembly Replacement

Procedure for replacing the control board assembly.

Side Cabinet Replacement

Procedure for replacing the side cabinets.

Outdoor Fan Motor Replacement

Procedure for replacing the outdoor fan motor.

Compressor Replacement

Procedure for replacing the compressor.

Reactor Replacement

Procedure for replacing the reactor.

Electronic Expansion Valve Coil Replacement

Procedure for replacing the electronic expansion valve coil.

Fan Guard Replacement

Procedure for replacing the fan guard.

Temperature Sensor Replacement (TE, TS, TD, TO)

Procedures for replacing various temperature sensors.

Temperature Sensor Servicing Replacement

Detailed procedure for replacing temperature sensors.

13. EXPLODED VIEWS AND PARTS LIST

Indoor Unit Parts List (Part-E)

Exploded view and parts list for the indoor unit.

Indoor Unit Exploded View and Parts List

Exploded view and parts list for the indoor unit.

Outdoor Unit Exploded View and Parts List

Exploded view and parts list for the outdoor unit.

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