Heat Controller DMH24DB-1, DMC24DB-1 Install the drain hose to ensure that Keep level even when

Page 7

Safety Precautions

When the product is not to be used for a long time, disconnect the power by turning off the breaker.

Take care to ensure that nobody could step on or fall onto the outdoor unit.

There is risk of product damage or failure, or unintend- ed operation.

This could result in personal injury and product dam- age.

CAUTION

Installation

Always check for gas (refrigerant) leak- age after installation or repair of product.

Install the drain hose to ensure that

Keep level even when

water is drained away properly.

installing the product.

Low refrigerant levels may cause failure of product.

A bad connection may cause water leakage.

To avoid vibration or water leak- age.

90°

Do not install the product where the noise or hot air from the outdoor unit could oftend neighbors.

Use two or more people to lift and transport the product.

Do not install the product where it will be exposed to sea wind (salt spray) directly.

• It may cause a problem for your

• Avoid personal injury.

• It may cause corrosion on the

neighbors.

 

product. Corrosion, particularly on

 

 

the condenser and evaporator fins,

 

 

could cause product malfunction or

 

 

inefficient operation.

Service Manual 7

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Contents Heat CONTROLLER, INC Table of Contents Combination table Symbols Used in this Manual Control box securely Cuit and breaker Safety Precautions Installation Be sure not to do Be sure to follow the instructionDo not allow water to run into electric parts Do not install, remove, or reDo not install the product on a Defective installation standNot enter the product When the product is soakedFlooded or submerged, contact Installing the product Install the drain hose to ensure that Keep level even whenUse two or more people to lift and transport the product Operational Be careful and avoid personal injury Indoor Unit DimensionsSplit Type Indoor 24kBtu/h Outdoor UnitUnit Product SpecificationsDMC24DB-1 OperationDMH24DB-1 Installation Parts InstallationInstallation Tools Outdoor unit Rooftop InstallationsSelect the best location Indoor unitMulti Piping Type Piping length and elevation24k Fixing Installation PlateStandard Type Flaring work Flaring Work and Connection of PipingCheck Connecting the PipingIndoor Wrap the insulation material around the connecting por- tion For left rear piping Plastic bands Insulation material Connection Indoor Remote Control Preparationoptional Outdoor unit OutdoorConnect the cable to the Indoor unit Connecting the Cable between Indoor Unit and Outdoor UnitOutdoor unit Connect the cable to the Outdoor unitHow to connect wiring to the terminals Connection method of the connecting cableExampleConnect the cable to the indoor unit To check the drainage Checking the drainageDrain piping Down to up Forming the pipingChecking method Air Purging and EvacuationEvacuation Repeat evacuation procedure for each indoor unitFinishing the job Additional ChargingSplit Type Test RunningOperation Cooling Mode OperationSoft Dry Operation Mode Heating Mode OperationFuzzy Operation Defrost ControlHeatingFuzzy Operation for Cooling Fuzzy Operation for Dehumidification On-Timer OperationOff-Timer Operation Airflow Speed SelectionChaos Natural Wind Mode Off-Timer = On-Timer OperationSleep Timer Operation Chaos Swing ModeBuzzer Sounding Operation Forced OperationSplit Type Indoor Unit Function of Indoor UnitFunction of Outdoor Unit Cooling Model , Heat Pump Model Remote Control Operation15 2nd F Button To remove the Grille from the Chassis DisassemblyTo remove the Control Box To remove the Motor Cover Electronic Control Device Schematic DiagramIndoor Unit TMP87CM41F Outdoor UnitRY-4WAY RY-LIQ RY-GAS RY-FANL RY-FANH Room Type Indoor Unit Wiring DiagramBottom View Components LocationsDisplay Assembly Split Type 6871A20680 Component side Solder side DMC24DB-1 Troubleshooting GuideRefrigeration Cycle Diagram DMH24DB-1Self-diagnosis Function Indoor ErrorOutdoor Error Error IndicatorTrouble analysis Cycle Troubleshooting GuideProcedure Specification Remedy Electronic Parts Troubleshooting GuideProduct doesnt operate with the remote controller Check Point Comp. on Comp. OFF Compressor/Outdoor Fan are dont operateNector Trouble 4 When indoor Fan does not operateTroubleshooting Guide Indoor inlet pipe sensor Error CodeCheck Point Indoor air sensorCommunication line is shorted at GND Power input AC 230V.Outdoor, IndoorError Title Cause of error Check point & Normal condition Pipe sensor Title Cause of error Check point & Normal conditionOutdoor air sensor Condensor pipe sensorWay Valve Liguid Side Way, 3-way ValveSet the liquid side valve to the closed position ProcedurePumping down Air purging of the charge hoseEvacuation Mount the valve caps and the service port capsAll amount of refrigerant leaked Connect the gauge to the charging cylinder Mount the valve stem nuts and the service port nutGas Charging After EvacuationHeat CONTROLLER, INC
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