Heat Controller B-MMC09FA-1, B-MMH12FA-1, B-MMC12FA-1, B-MMH09FA-1, A-MMH24FA-1 manual MMC24FA-1

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Troubleshooting Guide

3. A-MMC24FA-1				OUTDOOR UNIT
	Ø9.52			High pressure S/W
	Ø9.52
Field Piping	Room B
Field Piping	Ø9.52
Gas	Ø9.52	Strainer
	Room A
		Header		Th3
				Th3
			Th1	Th2
		Accumulator	Constant Compressor	Constant Compressor
				Heat
				Exchanger
	Ø6.35	EEV-B
Field Piping	Room B
Field Piping	Ø6.35	EEV-A
Liquid	Ø6.35	EEV-A
	Room A
Refrigerant Flow
Cooling			Strainer
Th1: Discharge thermistor

Th2: Discharge thermistor

Th3: Outdoor temperature thermistor

4. A-MMH24FA-1

				OUTDOOR UNIT
	Ø9.52
Field Piping	Room B
Field Piping	Ø9.52
Gas	Ø9.52	Strainer
	Room A
				High pressure S/W
		Header
		Accumulator	Constant Compressor	Th3
		Accumulator	Constant Compressor	Constant Compressor
			Th1	Th2
				Heat
				Exchanger
	Ø6.35	EEV-B
Field Piping	Room B
Field Piping	Ø6.35
Liquid	Ø6.35	EEV-A
	Room A
				Th4
Refrigerant Flow
Cooling			Strainer
			Strainer
Heating

Th1: Discharge thermistor

Th2: Discharge thermistor

Th3: Outdoor temperature thermistor

Th4: Defrost thermistor

Wall Mounted Multi-Zone Split System Air Conditioner

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Contents Heat CONTROLLER, INC Table of Contents KBtu/h 3 rooms Symbols Used in this ManualKBtu/h 2 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 partsFlooded or submerged, contact When the product is soaked Be cautious that water canNever enter the product Use two or more people to lift and transport the product Install the drain hose to ensure that Keep level even whenInstalling the product Operational Do not use the remote is the batteries have leaked Seaside applications and installation Selecting the locationOutdoor UnitSplit Type Indoor DimensionsIndoor Unit 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 Tools InstallationInstallation Parts Selecting the best location 18 / 24 kBtu/h KBtu/h Piping length and elevationMulti Piping Type Installing Installation PlateStandard Type Drilling the hole in the wallFlaring Work and Connection of Piping Flaring workIndoor Connecting the PipingCheck 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 unit 36 kBtu/h OutdoorOutdoor unit 18/24 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 Drain piping Checking the drainageTo check the drainage Secure the taped piping along the exterior wall using Insulating the Pipe and Special Piping ApplicationsPreparation Air Purging and EvacuationLeak checking Leakage testFinishing the job Repeat evacuation procedure for each indoor unitEvacuation Charging AdditionalTest Running Split TypeHeating Mode Operation Cooling Mode OperationSoft Dry Operation Mode OperationFuzzy Operation for Cooling Defrost ControlHeatingFuzzy Operation 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 Cooling Model , Heat Pump Model Remote Control OperationTime Setting Buttons Used to adjust the time Disassembly To remove the Grille from the ChassisTo remove the Control Box To remove the Motor Cover Indoor Unit Schematic DiagramElectronic Control Device 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 sensorCommunication line is shorted at GND Description Cause of error Check point & Normal conditionPower input AC 230V.Outdoor, Indoor Comp OFF Pipe sensor Outdoor air sensorCondensor pipe sensor Way, 3-way Valve Way Valve Liguid SideProcedure Pumping downAll the refrigerant leaked Replace the valve and service port capsEvacuation 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