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Toyotomi TAN-A70IV User Manual

Toyotomi TAN-A70IV
32 pages
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TAN/TAG-A70IV(A)
CONTENTS
SPECIFICATION .................................................................... 1
FUNCTIONS .......................................................................... 7
SERVICE FUNCTION EXPLANATION .................................. 9
OPERATION DETAILS......................................................... 10
TROUBLESHOOTING GUIDE ............................................. 16
PERFORMANCE CURVE DIAGRAM ..................................22
ELECTRIC CIRCUIT DIAGRAM .......................................... 26
SCHEMATIC DIAGRAM AND PCB’S .................................. 30
PARTS LIST (PCB) .............................................................. 40
SEMICONDUCTOR LEAD IDENTIFICATION...................... 54
SEMICONDUCTOR PIN FUNCTION................................... 58
THERMISTOR RESISTANCE CHART ................................. 63
EXPLODED VIEW (INDOOR UNIT) .................................... 71
EXPLODED VIEW (OUTDOOR UNIT) ................................ 74
PARTS LIST (INDOOR UNIT) .............................................. 76
PARTS LIST (OUTDOOR UNIT) .......................................... 77
SERVICE MANUAL
ROOM AIR CONDITIONER
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Toyotomi TAN-A70IV Specifications

General IconGeneral
BrandToyotomi
ModelTAN-A70IV
CategoryAir Conditioner
LanguageEnglish

Summary

Specification

Functions

Service Function Explanation

Emergency and Test Operation

Explains emergency and test operation modes for the air conditioner.

How to Release Emergency and Test Operation

Details how to stop emergency or test operation using the remote control or switch.

Interference Prevention of Signals from the Remote Controller

Provides steps to avoid signal interference between multiple indoor units.

Operation Details

Timer Operation

Describes the ON, OFF, and Sleep timer functions for operating the unit.

Airflow Direction Control

Explains automatic and manual control of the air direction louvers.

Time Delay Safety Control

Explains the compressor protection feature that prevents immediate restarts after stopping.

Cooling Mode Operation

Details the operational logic and compressor control for cooling mode.

Dry Mode Operation

Details the operational logic and compressor control for dry mode.

Heating Mode Operation

Details the operational logic and compressor control for heating mode.

Defrosting Operation

Explains the conditions and process for defrosting the outdoor unit heat exchanger.

Compressor Starting Sequence

Outlines the step-by-step process for starting the compressor at different frequencies.

Troubleshooting Guide

For Your Safety Use

Provides essential safety instructions for product use and handling.

Danger and Warning Symbols

Explains the meaning of danger, warning, and caution symbols used in the manual.

Indication Lamp

Details error codes indicated by lamp combinations on the indoor unit.

Check a Following Steps

Outlines diagnostic checks with specific figures and procedures for troubleshooting.

Electric Character

Provides resistance charts for various sensors used in the unit.

Display of Errors in the Past

Explains how to access and interpret past error logs using the emergency operation switch.

Wiring Diagram

Shows the electrical wiring connections for both indoor and outdoor units.

Performance Curve Diagram

Remarks for Gas Pressure Check and Charging

Provides guidelines for checking gas pressure and recharging refrigerant.

Thermistor Resistance Chart

RC Sensor, Room Temperature

Table of resistance and voltage values for the room temperature sensor.

Sensor, Heat Exchanger Temperature

Table of resistance and voltage values for the heat exchanger temperature sensor.

AE Sensor, Defrost Temperature & Outdoor Temperature

Table of resistance and voltage for defrost and outdoor temperature sensors.

AE Sensor, Discharge Temperature

Table of resistance and voltage values for the discharge temperature sensor.

Exploded View (Indoor Unit)

Exploded View (Outdoor Unit)

Parts List (Indoor Unit)

Parts List (Outdoor Unit)

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