Heat Controller DMC24DB-1, DMH24DB-1 manual Defrost ControlHeating, Fuzzy Operation for Cooling

Page 36

Operation

27°C(80.6°F), it operates with Super-Low(while in sleep mode, with the medium airflow speed).

While compressor off, the indoor fan is off when the indoor pipe temp is below 33°C(91.4°F), when above 35°C(95°F) , it operates with the low airflow speed.

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

Defrost Control(Heating)

Defrost operation is controlled by timer and sensing temperature of outdoor pipe.

The first defrost starts only when the outdoor pipe temperature falls below -6°C(21.2°F) after 35 minutes passed from starting of heating operation and more than 4 minutes operation of compressor.

Defrost ends after 12 minutes passed from starting of defrost operation when the outdoor pipe temperature rises over 15°C(59°F) even before 12 minutes.

The second defrost starts only when the outdoor pipe temperature falls below -6°C(21.2°F) after 35 minutes passed from ending of the first defrost and more than 4 minutes operation of compressor.

Fuzzy Operation

When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off, the operation mode is selected.

When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and only the indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake air temp at that moment as follows.

24°C(75.2°F)

Intake Air Temp

Fuzzy Operation for Cooling

21°C(69.8°F)

Intake Air Temp<24°C(75.2°F)

Fuzzy Operation for Dehumidification

Intake Air Temp<21°C(69.8°F)

Fuzzy Operation for Heating

If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10 sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated.

1)Fuzzy Operation for Cooling

According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C(0.9°F) or more

below the setting temp, the compressor is turned off. When 0.5°C(0.9°F) or more above the setting temp, the

compressor is turned on.

 

Compressor ON Temp

Setting Temp +0.5°C(0.9°F)

Compressor OFF Temp

Setting Temp + 0.5°C(0.9°F)

At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

26°C(78.8°F)

Intake Air Temp

25°C(77°F)

24°C(75.2°F)

Intake Air Temp<26°C(78.8°F)

Intake Air Temp + 1°C(1.8°F)

22°C(71.6°F)

Intake Air Temp<24°C(75.2°F)

Intake Air Temp + 0.5°C(0.9°F)

18°C(64.4°F)

Intake Air Temp<22°C(71.6°F)

Intake Air Temp

Intake Air Temp<18°C(64.4°F)

18°C(64.4°F)

When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temper- ature.

36Multi type Air Conditioner

Image 36
Contents Heat CONTROLLER, INC Table of Contents Symbols Used in this Manual Combination tableSafety Precautions InstallationBe sure not to do Be sure to follow the instruction Control box securely Cuit and breakerDo not install, remove, or re Do not install the product on aDefective installation stand Do not allow water to run into electric partsWhen the product is soaked Not enter the productFlooded or submerged, contact Install the drain hose to ensure that Keep level even when Installing the productUse two or more people to lift and transport the product Operational Be careful and avoid personal injury Dimensions Indoor UnitSplit Type Indoor Outdoor Unit 24kBtu/hProduct Specifications DMC24DB-1Operation UnitDMH24DB-1 Installation Installation PartsInstallation Tools Rooftop Installations Select the best locationIndoor unit Outdoor unitPiping length and elevation Multi Piping Type24k Fixing Installation PlateStandard Type Flaring Work and Connection of Piping Flaring workConnecting the Piping CheckIndoor Wrap the insulation material around the connecting por- tion For left rear piping Plastic bands Insulation material Connection Indoor Remote Control Preparationoptional Outdoor Outdoor unitConnecting the Cable between Indoor Unit and Outdoor Unit Connect the cable to the Indoor unitConnect the cable to the Outdoor unit Outdoor unitConnection method of the connecting cableExample How to connect wiring to the terminalsConnect the cable to the indoor unit Checking the drainage To check the drainageDrain piping Forming the piping Down to upAir Purging and Evacuation Checking methodRepeat evacuation procedure for each indoor unit EvacuationFinishing the job Charging AdditionalTest Running Split TypeCooling Mode Operation Soft Dry Operation ModeHeating Mode Operation OperationDefrost ControlHeating Fuzzy OperationFuzzy Operation for Cooling On-Timer Operation Off-Timer OperationAirflow Speed Selection Fuzzy Operation for DehumidificationOff-Timer = On-Timer Operation Sleep Timer OperationChaos Swing Mode Chaos Natural Wind ModeForced Operation Buzzer Sounding OperationFunction of Indoor Unit Split Type Indoor UnitFunction of Outdoor Unit Remote Control Operation Cooling Model , Heat Pump Model15 2nd F Button Disassembly To remove the Grille from the ChassisTo remove the Control Box To remove the Motor Cover Schematic Diagram Electronic Control DeviceIndoor Unit Outdoor Unit TMP87CM41FRY-4WAY RY-LIQ RY-GAS RY-FANL RY-FANH Wiring Diagram Room Type Indoor UnitComponents Locations Bottom ViewDisplay Assembly Split Type 6871A20680 Component side Solder side Troubleshooting Guide Refrigeration Cycle DiagramDMH24DB-1 DMC24DB-1Indoor Error Outdoor ErrorError Indicator Self-diagnosis FunctionCycle Troubleshooting Guide Trouble analysisElectronic Parts Troubleshooting Guide Procedure Specification RemedyProduct doesnt operate with the remote controller Compressor/Outdoor Fan are dont operate Check Point Comp. on Comp. OFFTrouble 4 When indoor Fan does not operate NectorTroubleshooting Guide Error Code Check PointIndoor air sensor Indoor inlet pipe sensorPower input AC 230V.Outdoor, Indoor Communication line is shorted at GNDError Title Cause of error Check point & Normal condition Title Cause of error Check point & Normal condition Outdoor air sensorCondensor pipe sensor Pipe sensorWay, 3-way Valve Way Valve Liguid SideProcedure Pumping downAir purging of the charge hose Set the liquid side valve to the closed positionMount the valve caps and the service port caps EvacuationAll amount of refrigerant leaked Mount the valve stem nuts and the service port nut Gas ChargingAfter Evacuation Connect the gauge to the charging cylinderHeat CONTROLLER, INC
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