Heat Controller B-MMC09FA-1, B-MMH12FA-1 Defrost ControlHeating, Fuzzy Operation for Cooling

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Operation

operates (except in sleep mode, the airflow will be at medium speed).

While compressor is 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 mode, the indoor and outdoor fans are turned off.

Defrost Control(Heating)

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

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

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

Fuzzy Operation

When the unit is turned on and an operation mode has not been selected, after 3 hours has passed, the opera- tion mode will be automatically selected via fuzzy operation.

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

However, if any of the operation modes among cooling / dehumidification / heating mode operations has been carried out for 10 sec or longer before Fuzzy operation, the last mode that the unit operated in will be automati- cally selected.

1)Fuzzy Operation for Cooling

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

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

the compressor is turned on.

 

Compressor ON Temp

Set point Temp +0.5°C(0.9°F)

Compressor OFF Temp

Set point Temp + 0.5°C(0.9°F)

At the beginning of Fuzzy mode operation, the set point 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 set point temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the set point 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.

Wall Mounted Multi-Zone Split System Air Conditioner

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Contents Heat CONTROLLER, INC Table of Contents Symbols Used in this Manual KBtu/h 2 roomsKBtu/h 3 rooms Be sure not to do Be sure to follow the instruction Safety PrecautionsInstallation Control box securely Cuit and breakerDefective installation stand Do not install, remove, or reDo not install the product on a Do not allow water to run into electric partsWhen the product is soaked Be cautious that water can Never 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 Do not use the remote is the batteries have leaked Seaside applications and installation Selecting the locationOutdoor UnitDimensions Indoor UnitSplit Type Indoor Outdoor Unit 18kBtu/h24kBtu/h UE2 36kBtu/hProduct Specifications Indoor Unit Type Wall Mounted ModelOutdoor Unit Multiple piping models MMC18FA-1 MMH18FA-1MMC24FA-1 MMH24FA-1 MMC36FA-1 MMH36FA-1 Installation Installation PartsInstallation Tools Selecting the best location Piping length and elevation Multi Piping Type18 / 24 kBtu/h KBtu/h Installing Installation PlateStandard Type Drilling the hole in the wallFlaring Work and Connection of Piping Flaring workConnecting the Piping CheckIndoor Indoor unit installation Wrap the insulation material around the all connectionsFor left rear piping Wrap the insulation material around the connecting por- tion Good case Bad caseRemote Control Preparationoptional Outdoor Outdoor unit 18/24 kBtu/hOutdoor unit 36 kBtu/h Connect the cable to the Indoor unit Tions ETL recognized and CSA certifiedConnect the cable to the Outdoor unit Outdoor unitMethods of connecting the cable How to connect wiring to the terminalsModel Checking the drainage To check the drainageDrain piping Secure the taped piping along the exterior wall using Insulating the Pipe and Special Piping ApplicationsPreparation Air Purging and EvacuationLeak checking Leakage testRepeat evacuation procedure for each indoor unit EvacuationFinishing the job Charging AdditionalTest Running Split TypeHeating Mode Operation Cooling Mode OperationSoft Dry Operation Mode OperationDefrost ControlHeating Fuzzy OperationFuzzy Operation for Cooling Airflow Speed Selection On-Timer OperationOff-Timer Operation Fuzzy Operation for DehumidificationChaos Swing Mode Off-Timer = On-Timer OperationSleep Timer Operation Chaos Natural Wind ModeForced Operation Buzzer SoundFunction of Indoor Unit Split Type Indoor UnitFunction of Outdoor Unit Remote Control Operation Time Setting Buttons Used to adjust the timeCooling Model , Heat Pump Model 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 Indoor Unit Outdoor UnitMMC24FA-1 Component Locations Bottom ViewDisplay Assembly Split Type 6871A20680 Component side Solder side MMC18FA-1 Troubleshooting GuideRefrigeration Cycle Diagram MMH18FA-1MMH24FA-1 MMC36FA-1 MMH36FA-1Error Indicator Indoor ErrorOutdoor Error Self-diagnosis FunctionCycle Troubleshooting Guide Trouble analysisElectronic Parts Troubleshooting Guide Procedure Specification RemedyProduct doesnt operate with the remote controller Compressor/Outdoor Fan dont operate Check Point Comp. on Comp. OFFTrouble 4 When indoor Fan does not operate NectorVoltage of Connectors according to Indoor Fan Speed RY-COMP-BWhen Vertical Louver does not operate Indoor air sensor Error CodeCheck Point Indoor inlet pipe sensorDescription Cause of error Check point & Normal condition Power input AC 230V.Outdoor, IndoorCommunication line is shorted at GND Comp OFF Outdoor air sensor Condensor pipe sensorPipe sensor Way, 3-way Valve Way Valve Liguid SideProcedure Pumping downReplace the valve and service port caps EvacuationAll the refrigerant leaked After Evacuation Replace the valve stem nuts and the service port nutGas Charging Connect the gauge to the charging cylinderExploded View Model B-MMC09FA-1, B-MMH09FA-1, B-MMC12FA-1, B-MMH12FA-1Model A-MMC18FA-1, A-MMH18FA-1 Model A-MMC24FA-1, A-MMH24FA-1 Model A-MMC36FA-1, A-MMH36FA-1 Heat CONTROLLER, INC 08/06/2008