Heat Controller VMC12SB-1/VMH12SB-1 Basic Mode Controls, Cooling Mode, Heating Mode Heatpump Only

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Part 2 Functions & Controls

2. BasicModeControls

2.1 Cooling Mode

+0.5°C(1°F)

 

 

 

 

Thermo ON

Setting

 

 

 

 

 

Temp.

 

 

 

 

 

-0.5°C(-1°F)

 

 

 

 

Thermo OFF

 

 

 

 

 

INV. Comp.

High

Low

Comp. OFF

High

Low

Frequency

 

 

 

 

 

•Operating frequency of compressor depends on the load condition, like the difference between the room temp. and the set temp., frequency restrictions.

•If the compressor operates at some frequency, the operating frequency of compressor cannot be changed within 30 seconds. ( not emergency conditions)

•Compressor turned off when

-intake air temperature is in between ±0.5°C(±1°F) of the setting temp. limit for three minutes continuously.

-intake air temperature reaches below 1.0°C(2°F) of the temperature of setting temp..

•Compressors two minutes time delay.

-After compressor off, the compressor can restart minimum 2 minutes later.

2.2 Heating Mode Heatpump Only

5˚C(9˚F) Thermo OFF

2˚C(3.6˚F) Thermo ON

Setting

Temp.

INV. Comp.

High

Low

Comp. OFF

High

Low Comp. OFF

Frequency

 

 

 

 

 

•Operating frequency of compressor depend on the load condition, The difference between the room temp. and set temp., frequency restrictions.

•If compressor operates at some frequency, the operating frequency of compressor cannot be changed within 30 sec- onds.

•Condition of compressor turned off

-When intake air temperature reaches +5°C(9°F) above the setting temperature.

•Condition of compressor turned on

-When intake air temperature reaches +2°C(3.6°F) above the setting temperature.

*Condition of indoor fan turned off

-While in compressor on : indoor pipe temp. < 20°C(68°F)

-While in compressor off : indoor pipe temp. < 30°C(86°F)

•While in defrost control, the indoor and outdoor fans are turned off.

•Compressor 2minutes delay

-After compressor off, the compressor can restart minimum 2 minutes later.

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Only for training and service purposes

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Contents Heat CONTROLLER, INC Contents Part 1 General Information Be sure not to do Be sure to follow the instruction Safety PrecautionsPart 1 General Information Inspections after Repair Part 2 Functions & Controls Category Function Description Remark List of Functions & ControlsBasic Mode Controls Cooling ModeHeating Mode Heatpump Only Intake air Temp Setting Temp Healthy Dehumidification operationAuto changeover operation Heatpump Only Energy saving operation in cooling mode Special Mode ControlsJet Cool operation Jet Heat operation Heatpump OnlyUtility Functions Auto cleaning operationForced operation Heat/pump Model Cooling/only ModelSleep mode Auto control Air volume controlSleep timer operation for cooling cycle Natural Air ControlAuto WindAuto restart Sleep timer operation for heating cycle Heatpump OnlyFive Seconds Stand-by fan Protection Functions & ControlsTwo Minutes Stand-by comp Hot start Heatpump OnlyCompressor Preheating Heatpump Only Outdoor Temperature Running Time secSump Heater Control 9, 12kBtu/h Model Only Heatpump Only 1 9,12kBtu/h ModelAutomatic defrost Heatpump Only 2 18,24,30kBtu/h Model Starting the defrosting operationControl algorithm of defrost completion Defrosting Control AlgorithmInverter Power Relay ControlOverheating Protection Power Module Heat sink sensor failure error Heat sink temperature controlFunction CT1 control Total Current Control Over Current ProtectionCT2 control Model KBtu/h Cooling Heating11A 12A 14A 15.5A Discharge Pipe Temp Control DC Peak controlInverter Compressor 18,24,30kBtu/h Model Constant Compressor only 30kBtu/h Model There can be two situationsCompressor working 12.1 9,12kBtu/h Model Low Ambient control12.2 18, 24, 30kBtu/h Model Model Mode-in Condition Mode-out ConditionOil equalizing control30kBtu/h Model Oil return control30kBtu/h Model Heatpump OnlyOperating Contion Operation ProcessPart 3 Test Run Check before Test Run Test Run Flow chart Test Run DetailCheck before Test Run Start Test Run Flow chartTest Run Detail Pump Down ProcedureSettlement of outdoor unit Evaluation of the performancePart 4 Trouble Shooting Way Valve Liquid Side Way, 3-Way ValvePumping Down ProcedureAir purging of the charge hose Set the 2-way valve to the closed positionEvacuation Gas Charging After Evacuation Mount the valve stem nuts and the service port nutConnect the charge hose to the charging cylinder Purge the air from the charge hoseTrouble analysis Cycle Troubleshooting GuideProcedure Specification Remedy Electronic Parts Troubleshooting GuideTrouble Compressor/Outdoor Fan does not operate 9, 12kBtu/h Model Trouble When indoor Fan does not operate.9~30kBtu/h Model Error Indicator Self-diagnosis Function12kBtu/h Model Outdoor Error 18,24,30kBtu/h Model Indoor ErrorError code Descrition Red Green StatusCode ErrorTroubleshooting 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 Check Point Troubleshooting CH01, CH02, CH06Troubleshooting CH05, CH53 Part Trouble ShootingTroubleshooting CH21 CompCopper Comp pipe Troubleshooting CH21, CH22 Troubleshooting CH23, CH28 Troubleshooting CH24, CH25 ‘B’ Troubleshooting CH26, CH27Troubleshooting CH32, CH33, CH40 Troubleshooting CH41, CH44, CH45, CH46, CH47, CH65 Troubleshooting CH51, CH60 Inverter/ConstantCondenser/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.

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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.

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