Heat Controller VMC24SB-1/VMH24SB-1, VMC09SB-1/VMH09SB-1 service manual Troubleshooting CH21, CH22

Page 58

Part 4

Trouble Shooting

 

 

 

4) Troubleshooting CH21, CH22

 

 

 

 

 

 

Error

Title

Cause of error

Check point & Normal condition

code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

check if the compressor is locked or operating.

 

 

 

Compressor output

Check the compressor insulation and motor wire

21

DC_Peak

resistance.

current over.(30A↑)

 

 

 

Check if the outdoor fan is locked or operating.

 

 

 

 

 

 

 

 

 

 

Check the IPM short.

 

 

 

 

 

 

 

 

 

 

 

Check AC input voltage.

 

 

 

 

 

Check if the outdoor fan is locked or operating.

22

C/T

Initial current error

Check input current.

Check the C01N DC voltage.

Internal circuit

 

 

 

 

 

 

 

 

(From where the electricity is entering and Before

 

 

 

 

 

 

 

 

 

 

the product operates, Normality Vdc value is

 

 

 

 

 

2.5V±0.2V)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V

Check Point

1.Check the power source.

2.Check that the indoor fan is operating correctly.

3.Check the current.

4.Check the install conditions.

5.Check the internal circuit.

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Only for training and service purposes

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Page 57 Page 59
Contents Heat CONTROLLER, INC Contents Part 1 General Information Safety Precautions Be sure not to do Be sure to follow the instructionPart 1 General Information Inspections after Repair Part 2 Functions & Controls List of Functions & Controls Category Function Description RemarkCooling Mode Basic Mode ControlsHeating Mode Heatpump Only Healthy Dehumidification operation Intake air Temp Setting TempAuto changeover operation Heatpump Only Jet Cool operation Special Mode ControlsEnergy saving operation in cooling mode Jet Heat operation Heatpump OnlyForced operation Auto cleaning operationUtility Functions Heat/pump Model Cooling/only ModelSleep timer operation for cooling cycle Air volume controlSleep mode Auto control Natural Air ControlAuto WindSleep timer operation for heating cycle Heatpump Only Auto restartTwo Minutes Stand-by comp Protection Functions & ControlsFive Seconds Stand-by fan Hot start Heatpump OnlySump Heater Control 9, 12kBtu/h Model Only Heatpump Only Outdoor Temperature Running Time secCompressor Preheating Heatpump Only 1 9,12kBtu/h ModelAutomatic defrost Heatpump Only Starting the defrosting operation 2 18,24,30kBtu/h ModelDefrosting Control Algorithm Control algorithm of defrost completionPower Relay Control InverterOverheating Protection Power Module Heat sink temperature control Heat sink sensor failure errorFunction CT2 control Total Current Control Over Current ProtectionCT1 control Model KBtu/h Cooling Heating11A 12A 14A 15.5A DC Peak control Discharge Pipe Temp ControlInverter Compressor 18,24,30kBtu/h Model There can be two situations Constant Compressor only 30kBtu/h ModelCompressor working 12.2 18, 24, 30kBtu/h Model Low Ambient control12.1 9,12kBtu/h Model Model Mode-in Condition Mode-out ConditionOperating Contion Oil return control30kBtu/h Model Heatpump OnlyOil equalizing control30kBtu/h Model Operation ProcessCheck before Test Run Test Run Flow chart Test Run Detail Part 3 Test RunCheck before Test Run Test Run Flow chart StartSettlement of outdoor unit Pump Down ProcedureTest Run Detail Evaluation of the performancePart 4 Trouble Shooting Way, 3-Way Valve Way Valve Liquid SideAir purging of the charge hose ProcedurePumping Down Set the 2-way valve to the closed positionEvacuation Connect the charge hose to the charging cylinder Mount the valve stem nuts and the service port nutGas Charging After Evacuation Purge the air from the charge hoseCycle Troubleshooting Guide Trouble analysisElectronic Parts Troubleshooting Guide Procedure Specification RemedyTrouble Compressor/Outdoor Fan does not operate 9, 12kBtu/h Model Trouble When indoor Fan does not operate.9~30kBtu/h Model Self-diagnosis Function Error Indicator12kBtu/h Model Error code Descrition 18,24,30kBtu/h Model Indoor ErrorOutdoor Error Red Green StatusError CodeTroubleshooting Guide9,12kBtu/h Model Description Cause of error Heat-sink Temp. is over Description Cause of error DC Peak Error Description Cause of error Over current Error Description Cause of error Indoor fan is locked Description Cause of error Discharge pipe temp. is Troubleshooting CH01, CH02, CH06 Check PointPart Trouble Shooting Troubleshooting CH05, CH53Comp Troubleshooting CH21Copper Comp pipe Troubleshooting CH21, CH22 Troubleshooting CH23, CH28 Troubleshooting CH24, CH25 Troubleshooting CH26, CH27 ‘B’Troubleshooting CH32, CH33, CH40 Troubleshooting CH41, CH44, CH45, CH46, CH47, CH65 Inverter/Constant Troubleshooting CH51, CH60Condenser/Suction Pipe Troubleshooting CH61, CH62 Heat CONTROLLER, INC

VMC12SB-1/VMH12SB-1, VMC18SB-1/VMH18SB-1, VMC24SB-1/VMH24SB-1, VMC09SB-1/VMH09SB-1, VMC30SB-1/VMH30SB-1 specifications

The Heat Controller VMC30SB-1/VMH30SB-1, VMC09SB-1/VMH09SB-1, VMC24SB-1/VMH24SB-1, VMC18SB-1/VMH18SB-1, and VMC12SB-1/VMH12SB-1 are versatile and efficient HVAC systems designed for residential and commercial applications. These units stand out due to their innovative technologies, user-friendly features, and reliable performance, making them an excellent choice for heating and cooling needs.

One of the most significant features of these units is their Energy Efficiency Rating (EER). Each model has been engineered to provide optimal energy savings, thus minimizing operating costs and environmental impact. Utilizing advanced inverter technology, the systems adjust their cooling and heating output according to the room's demand, ensuring that energy is used only when necessary. This results in quieter operation, less energy consumption, and enhanced comfort.

The VMC and VMH models are equipped with high-performance compressors that provide rapid heating and cooling capabilities. This feature allows users to attain their desired temperatures more quickly compared to traditional systems, ensuring a comfortable environment throughout the year. In addition, the systems maintain consistent temperatures and reduce temperature fluctuations, contributing to a more enjoyable living or working space.

Another key characteristic of the Heat Controller units is their comprehensive filtration systems. These include multi-stage filters designed to trap dust, allergens, and other particulate matter, contributing to improved indoor air quality. This aspect is particularly important for those who suffer from allergies or respiratory issues, as the units help to create a cleaner, healthier living environment.

The compact design of these models allows for easy installation in various spaces, including small apartments or tight commercial setups. They feature an intuitive control panel that offers user-friendly programming options, enabling users to schedule operations according to their daily routines. Additionally, many models include smart connectivity features, allowing remote access and adjustments via mobile apps.

Finally, the aesthetic design of the VMC and VMH series complements modern interior decors, ensuring that these units not only perform well but look good while doing so. With a combination of reliability, energy efficiency, and user-centric features, the Heat Controller VMC and VMH series stand out as an excellent investment for any heating and cooling requirement. These units promise comfort, convenience, and cost-effective operation.
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