EasyManua.ls Logo

Argo ASR409VHG User Manual

Argo ASR409VHG
61 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
TECHNICAL DATA
& SERVICE MANUAL
INDOOR UNIT:
ASR409VHG
ASR412VHG
ASR418VHG
SPLIT SYSTEM AIR CONDITIONER
ASR418VHG
0.8180.370.0 07/2004
Model No. Product Code No.
ASR409VHG 387006990
387006992
387006991ASR412VHG
Question and Answer IconNeed help?

Do you have a question about the Argo ASR409VHG and is the answer not in the manual?

Argo ASR409VHG Specifications

General IconGeneral
BrandArgo
ModelASR409VHG
CategoryAir Conditioner
LanguageEnglish

Summary

Important Safety and Installation Guidelines

Installation and Operation Safety

Crucial safety guidelines for installers and service personnel, covering installation, wiring, and operation.

Refrigerant Tubing and Servicing Precautions

Detailed instructions for refrigerant tubing connections and safety measures during unit servicing.

1. SPECIFICATIONS

Unit Specifications (ASR409VHG)

Details on unit performance, features, dimensions, and weight for ASR409VHG.

Unit Specifications (ASR412VHG)

Details on unit performance, features, dimensions, and weight for ASR412VHG.

Unit Specifications (ASR418VHG)

Details on unit performance, features, dimensions, and weight for ASR418VHG.

Major Component Specifications (ASR409VHG)

Specs for Controller PCB, Fan Motor, Panel, Expansion Valve for ASR409VHG.

Major Component Specifications (ASR412VHG)

Specs for Controller PCB, Fan Motor, Panel, Expansion Valve for ASR412VHG.

Major Component Specifications (ASR418VHG)

Specs for Controller PCB, Fan Motor, Panel, Expansion Valve for ASR418VHG.

Other Component Specifications

Specs for Transformer, Thermistors, Drain pump, and Safety float switch.

2. DIMENSIONAL DATA

Indoor Unit Dimensional Drawings

Detailed diagrams and measurements for the indoor unit, including suspension brackets and fresh air intake port.

3. ELECTRICAL DATA

3-1 Electric Wiring Diagram

Schematic diagram illustrating electrical connections between indoor unit, outdoor unit, and remote controller.

4. FUNCTIONS

4-1 Room Temperature Control (Cooling)

How the unit regulates room temp in cooling mode, controlling compressor and fan operations.

4-1 Room Temperature Control (Heating)

How the unit regulates room temp in heating mode, controlling compressor, fan, and standby ops.

4-2 Cold Draft Prevention (Heating)

Controls indoor fan speed during heating to prevent cold drafts until heat exchange coils warm up.

4-3 Automatic Fan Speed (Indoor Unit)

Details on auto indoor fan speed adjustment based on room temp in cooling and heating modes.

4-4 Freeze Prevention (Cooling)

Prevents indoor heat exchanger coil freezing by controlling refrigerant flow and compressor operation.

4-5 Overload Protection (Heating)

Prevents unit overloading by controlling fan speed and refrigerant flow based on coil temperature.

4-6 Discharge Temperature Control (Cooling/Heating)

Prevents compressor burnout by managing discharge gas temp via refrigerant control and fan speed.

4-7 Auto Mode for Heating/Cooling Switching

Unit automatically switches between cooling and heating modes based on room and set temperatures.

4-8 Automatic Restart after Power Interruption

Description of the unit's power failure recovery function.

4-9 Electronic Expansion Valve Operation

Explanation of the electronic expansion valve's role in precise refrigerant flow control.

4-10 Dehumidifying Operation

Details on dehumidification mode, using cooling cycle with low fan speed to remove moisture.

4-11 Auto-flap Control (Indoor Unit)

How the auto-flap controls airflow direction in 5 steps for different operation modes.

4-12 Electronic Expansion Valve Control Logic

Control logic and order for the electronic expansion valve in cooling and heating modes.

4-13 Voltage Detection Control

Monitors voltage and issues alarm for protection if voltage is outside the safe range.

5. TROUBLESHOOTING

Troubleshooting Overview and Guides

Explains how to diagnose and resolve unit issues using flow charts, alarm messages, and LED indicators.

Initial Wiring and Power Checks

Crucial pre-troubleshooting steps involving verification of power supply and inter-unit wiring connections.

Specific Model Wiring and Power Checks

Crucial pre-troubleshooting steps for specific models involving power supply and inter-unit wiring verification.

Cooling Troubleshooting Flow Chart

Diagnostic chart for poor cooling issues, listing causes like refrigerant failure, air circulation problems, and their remedies.

Heating Troubleshooting Flow Chart

Diagnostic chart for poor heating issues, covering refrigerant flow, air circulation, and cold air discharge problems.

3. Alarm Messages and Error Codes

Serial Communication and Mis-setting Errors

Troubleshooting codes for serial communication failures and incorrect settings like unit addresses or wiring.

Protective Device Activation Indicators

Causes and indicators for protective devices activating due to thermal overload, voltage, or high pressure.

Thermistor and Compressor Fault Codes

Error codes indicating problems with thermistor sensors or compressor faults like overload, lock, and protector activation.

4. LED Indication on Outdoor Unit PCB

Interpreting Outdoor Unit LED Error Codes

Explanation of LED indicators on the outdoor unit PCB and their corresponding possible causes of trouble.

5. Symptoms and Parts Inspection

Symptom: LCD No Display / Controller Inoperative

Troubleshooting steps for a non-responsive remote controller, checking power, wiring, and PCB components.

Symptom: CHECK E01 (Communication Error)

Troubleshooting steps for E01 error, indicating unusual communication between remote controller and indoor unit.

Symptom: CHECK E02 (Communication Error)

Troubleshooting steps for E02 error, indicating unusual communication between remote controller and indoor unit.

Symptom: CHECK E04 (Indoor/Outdoor Communication Error)

Troubleshooting steps for E04 error, indicating unusual communication between indoor and outdoor units.

Symptom: CHECK E05 (Indoor/Outdoor Communication Error)

Troubleshooting steps for E05 error, indicating unusual communication between indoor and outdoor units.

Symptom: CHECK E06 (Communication Error)

Troubleshooting steps for E06 error, related to communication issues between indoor and outdoor units.

Symptom: CHECK E08 (Duplicate Unit Address)

Troubleshooting steps for E08 error, indicating duplicate indoor unit address settings.

Symptom: CHECK E09 (Duplicate RCU Address)

Troubleshooting steps for E09 error, indicating duplicate remote controller address settings.

Symptom: CHECK P01 (Fan Protection Warning)

Troubleshooting steps for P01 error, related to indoor fan protection thermostat operation.

Symptom: CHECK P02 (Compressor/Fan Protection/Voltage)

Troubleshooting steps for P02 error, involving compressor/fan protection or voltage abnormalities.

Symptom: CHECK P03 (Discharge Temp. Warning)

Troubleshooting steps for P03 error, indicating unusual discharge temperature of the compressor.

Symptom: CHECK P04 (High-Pressure Warning)

Troubleshooting steps for P04 error, related to high-pressure switch activation.

Symptom: CHECK P05 (Negative Phase Warning)

Troubleshooting steps for P05 error, indicating negative phase detection operation warning.

Symptom: CHECK E15 (Capacity Mismatch)

Troubleshooting steps for E15 error, related to capacity mismatch in multi-unit installations.

Symptom: CHECK E16 (Capacity Mismatch/Unit Count)

Troubleshooting steps for E16 error, related to capacity mismatch or incorrect indoor unit count.

Symptom: CHECK P9 (Connector Issue)

Troubleshooting steps for P9 indication, related to connector attachment issues.

Symptom: CHECK H01/H02/H03 (Compressor Current Detection)

Troubleshooting steps for H01/H02/H03 errors, related to compressor overload, lock, or current detection circuit faults.

Indoor Unit Operation Check (Communication Failure)

Procedure to check indoor unit operation and sensors when communication failure occurs in multi-unit systems.

6. Component Troubleshooting Procedures

Indoor Fan Not Operating Diagnosis

Steps to diagnose and fix issues where the indoor fan motor fails to operate, checking capacitor, voltage, and winding.

Flap Operation Issues (Sweep Function)

Troubleshooting for non-operating flaps when using the sweep function, checking motor resistance and connections.

Flap Operation Issues (Fan Aim Button)

Troubleshooting for flap issues when using the fan aim button, checking limit switch and connections.

Compressor Motor Not Operating Diagnosis

Diagnostic steps for a non-operating compressor motor, checking magnetic contactor and winding resistance.

Outdoor Fan Not Operating Diagnosis

Troubleshooting for a non-operating outdoor fan, checking relays, capacitor, voltage, and winding resistance.

7. Remote Controller Service Functions

Setting Service Check Switches

Instructions on setting service check switches (RCU.CK, RCU.ADR) on the remote controller's PCB.

Using the Test Run Procedure

Procedure for performing a test run to directly control unit operation without thermostat intervention.

Checking Sensor Temperature Readings

How to display and check temperature readings from various indoor and outdoor unit sensors via the remote controller.

Sensor Address and Location Reference

Reference table mapping sensor addresses (CODE No.) to their physical locations and types.

Accessing Past Service Problems

How to access and review the last 4 alarm messages stored in the remote controller's memory.

Navigating Alarm Message History

Procedure for navigating and viewing stored alarm messages using the remote controller's SET TEMP buttons.

Checking Remote Controller Self-Operation

Using the remote controller's self-diagnostic function to verify its correct operation.

Executing Automatic Address Operation

Procedure for performing automatic address assignment for indoor units using the remote controller.

Confirming and Changing Indoor Unit Address

How to check and modify the address of individual indoor units after auto-address operation.

Setting New Indoor Unit Number

Steps to set a new indoor unit number and confirm it via the remote controller interface.

Changing Shift Temperature in Heating Mode

Adjusting the shift temperature setting for heating mode to compensate for high-location installations.

Manually Setting Indoor Unit Address

Manual method to set the indoor unit address when auto-address operation is not available.

Setting Remote Control Unit (R.C.) Number

Procedure to set the Remote Control Unit (R.C.) number using the remote controller.

Setting Group Number for Multiple Units

Steps to set the group number for multiple units or confirm indoor unit addresses.

Changing Filter Timer Period

Adjusting the filter timer duration to suit environmental conditions like dirty environments.

6. CHECKING ELECTRICAL COMPONENTS

Measuring Insulation Resistance

Procedure for measuring insulation resistance of power supply wires and unit terminals to ensure good insulation.

Checking Fuse Continuity on PCB

Method to check fuse continuity using a multimeter after removing it from the PCB.

Checking Motor Capacitors

Procedure to test motor capacitors (compressor and fan) using a multimeter to check their charge and discharge behavior.

Thermistor Characteristic Curves

Graphs showing resistance-temperature characteristics for various thermistor sensors used in the unit.

7. P.C.B. Layout and Connections

Outdoor Unit PCB Component and Terminal Identification

Diagram showing the layout of components and terminal connections on the outdoor unit's Printed Circuit Board (PCB).

Related product manuals