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Toyotomi TAN-A20EW User Manual

Toyotomi TAN-A20EW
47 pages
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CONTENTS
SPECIFICATION .................................................................... 1
FUNCTIONS .......................................................................... 7
SERVICE FUNCTION EXPLANATION .................................. 9
OPERATION DETAILS .........................................................10
TROUBLESHOOTING GUIDE .............................................19
PERFORMANCE CURVE DIAGRAM .................................. 27
SCHEMATIC DIAGRAM AND
THERMISTOR RESISTANCE CHART.................................
ELECTRIC CIRCUIT DIAGRAM ..........................................
EXPLODED VIEW (INDOOR UNIT) ....................................
EXPLODED VIEW (OUTDOOR UNIT) ................................
PARTS LIST (INDOOR UNIT) ..............................................
PARTS LIST (OUTDOOR UNIT)..........................................
SERVICE MANUAL
ROOM AIR CONDITIONER
TAN/TAG-A20EW
TAN/TAG-A28EW
TAN/TAG-A32EW
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Toyotomi TAN-A20EW Specifications

General IconGeneral
TypeSplit System
Cooling Capacity2.0 kW
Heating Capacity2.5 kW
Power Supply220-240V, 50Hz
Energy Efficiency Ratio (EER)3.21
Coefficient of Performance (COP)3.61
Noise Level (Outdoor)50 dB(A)
RefrigerantR32
Noise Level (Indoor)38 dB(A)
Weight (Indoor Unit)8.0 kg
Dimensions (Outdoor Unit)700 x 550 x 275 mm

Summary

FUNCTIONS

REMOTE-CONTROL TRANSMITTER FUNCTIONS

Describes the functions and controls available on the remote transmitter.

INDOOR UNIT FUNCTIONS

Explains the operational functions and features of the indoor unit.

OUTDOOR UNIT FUNCTIONS

Details the operational functions and protective mechanisms of the outdoor unit.

SERVICE FUNCTION EXPLANATION

EMERGENCY AND TEST OPERATION MODES

Explains how to use emergency and test operation modes.

SIGNAL INTERFERENCE PREVENTION

Provides methods to prevent signal interference between multiple indoor units.

OPERATION DETAILS

TIMER AND AIRFLOW CONTROLS

Details timer operations and airflow direction adjustments.

COOLING MODE AND COMPRESSOR PROTECTION

Describes cooling mode logic and compressor safety controls.

FAN SPEED AND HEAT EXCHANGE CONTROLS

Explains fan speed adjustments and heat exchanger protection.

MODE OPERATIONS (DRY & HEATING)

Details the operational sequences for dry and heating modes.

OPERATIONAL PROTECTIONS AND DEFROSTING

Covers overload controls and defrosting procedures.

REFRIGERATION CYCLE DIAGRAM

Illustrates the refrigerant flow in cooling and heating modes.

TROUBLESHOOTING GUIDE

SAFETY PRECAUTIONS AND WARNINGS

Outlines safety warnings and precautions for handling the appliance.

DRY AND COOLING OPERATION FAULT FINDING

Provides troubleshooting steps for dry and cooling operation issues.

HEATING OPERATION FAULT FINDING

Offers troubleshooting guidance for heating operation problems.

DIAGNOSTIC CHECKS AND ELECTRICAL DATA

Lists steps for checking components and relevant electrical characteristics.

CONTROL BOX AND MAIN CONTROLLER ACCESS

Details the procedure for removing the control box and main controller.

SYSTEM BLOCK DIAGRAM

Presents the overall block diagram of the air conditioner's electrical system.

WIRING DIAGRAMS

Shows the electrical wiring diagrams for different unit models.

OVERHEAT PROTECTION CHECK

Explains how to diagnose issues with overheat preventive relays (OHR/INNER PROTECTOR).

PERFORMANCE CURVE DIAGRAM

GAS PRESSURE CHECK AND CHARGING REMARKS

Provides guidelines for checking gas pressure and refrigerant charging.

COOLING PERFORMANCE CHARACTERISTICS

Displays performance curves for cooling mode across different conditions.

HEATING PERFORMANCE CHARACTERISTICS

Displays performance curves for heating mode across different conditions.

THERMISTOR RESISTANCE CHART

ROOM TEMPERATURE SENSOR RESISTANCE

Lists resistance values for the room temperature sensor at various temperatures.

DEFROST TEMPERATURE SENSOR RESISTANCE

Lists resistance values for the defrost sensor at various temperatures.

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