Heat Controller DMC18SB-1, DMC12SB-0, DMC09SB-0, DMH09SB-0 When indoor Fan does not operate, Nector

Page 56

Troubleshooting Guide

When indoor Fan does not operate.

Does the voltage of each terminals of CN-MOTOR CONNECTOR in

Indoor unit corresponds to values in the Table of page 56

Does the voltage of terminal of CN-DC/DC CONNECTOR in Indoor unit corresponds to the values in the table of page 56

Check connecting condition of the CN-MOTOR CON-

NECTOR

Do the voltage of terminal of CN-DC/DC CONNECTOR in Outdoor unit corresponds to the values in the table of page 56

Check the pattern and the condition of Indoor unit PWB Ass'y.

Check the interference of Indoor Fan.

NO

Check the patterns and the conditions of outdoor unit PWB Assy's.

Check the connecting condi- tion and disconnection of connecting wires between Indoor and Outdoor unit.

Check the motor of Indoor Fan

Indoor Fan may be stopped in the Soft Dry Mode(change to the Cooling Operation Mode).

Indoor Fan is to be stopped when Indoor pipe(coil) termperature is lower than 79°F. (At that times, Defrost indicator is turned on)

56Room Air Conditioner

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Contents Heat CONTROLLER, INC Table of Contents Be sure not to do Be sure to follow the instruction Safety PrecautionsInstallation Do not allow water to run into electric part OperationDo not handle the pipe by your- selfCostomer There is risk of fire or electrical shock There is risk of electric shockThere is risk of electrical shock There could result in personal injury and product dam- ageWater is drained away properly Product LeakageDo not direct airflow at room occu- pants Do not block the inlet or outlet of air flowReplace all the batteries in the remote DisuseDo not drink the water drained from the unit Dimensions Indoor UnitModel Btu Series Mminch 109042.9 30011.8 1787.0Outdoor Unit 9k, 12k9k, 12k Unit18k, 24k Introduction Symbols Used In This ManualFeatures Installation Installation PartsInstallation Tools Read carefully, and then follow step by stepInstallation Map Confirm The Refrigerant This Product Contains R-410A RefrigerantRooftop Installations Select The Best LocationIndoor unit Outdoor unitPiping Length And Elevation How To Mount Installation Plate Drill a Hole In The WallFlaring Work Cut the pipes and the cableBurrs removal Putting nut onIndoor Connecting The PipingIndoor unit installation Wrap the insulation material around the connecting portion Tighten the flare nut with a wrenchTape the drain hose and the connecting cable Insert the connecting cable into the indoor unitIndoor unit installation Piping for passage through piping hole Correct case Incorrect caseConnection Of The Drain Hose Connection Of Piping -OutdoorConnection Of The Cable Outdoor unitInstallation Checking The Drainage Drain pipingDrain hose should point downward for easy drain flow Avoid these situationsForming The Piping Seal small openings around pipings with a gum type sealerAir Purging Air purging With Vacuum PumpPreparation Leak testEvacuation Finishing the jobConnect the charge hose end described Clockwise to fully open the valveCharging ImportantUnit is critically chargedPrepare remote control Test RunningSettlement of outdoor unit Evaluation of the performanceCooling Mode Operation Healthy Dehumidification ModeOperation Function of ControlsHeating Mode Operation Defrost ControlSleep Timer Operation Chaos Natural Wind ModeJet Cool Mode Operation C/O Model Jet Cool Mode Operation H/P ModelForced operation Test operationAuto restart Protection of the evaporator pipe from frostingDisplay Function Self-diagnosis FunctionHeating Model Cooling ModelRemote Control Operations Nd F ButtonDisassembly To remove the Grille from the ChassisWhen repair, do not damage the Caution label To remove the Control BoxTo remove the Discharge Grille To remove the EvaporatorTo remove the Motor Cover To remove the Cross-Flow FanTroubleshooting Guide Refrigeration Cycle DiagramCooling Only Models Cooling & Heating ModelsWay, 3-way Valve Way Valve Liquid SideAir purging of the charge hose ProcedurePumping Down Balance Refrigerant of the 3-way Valve Gas leakageAll amount of refrigerant leaked Mount the valve stem nuts and the service port nut Gas ChargingAfter Evacuation Connect the charge hose to the charging cylinderMethod of using graph Method of using equationAccording to Indoor & Outdoor Temperature Additional gas chargingCycle Parts Trouble analysisElectronic Parts 9k model Product does not operate at allElectronic Parts 18k model Product is not operate with the remote controller Compressor/Outdoor Fan are unable to drive.9k Model Compressor/Outdoor Fan are unable to drive.18k Model When indoor Fan does not operate NectorWhen Vertical Louver does not operate When a comunication error occurs Phenomena in case of connecting error Indoor UnitOutdoor Unit Schematic Diagram Electric Control DeviceOutdoor 9k, 12k Outdoor 18k, 24k Wiring Diagram Models 9kC/O Models 12kH/P, 12kC/O, H/P Models 18kC/O Models 18kH/P, 24kC/O, H/P Components Location Outdoor9k, 12k Outdoor18k, 24k 6870A90240D 6870A90240E Product Specifications Cooling OnlyCooling & Heating DMH09SB-0 DMH12SB-0 DMH18SB-1 DMH24SB-1Heat CONTROLLER, INC

DMH12SB-0, DMH18SB-1, DMC24SB-1, DMH24SB-1, DMH09SB-0 specifications

The Heat Controller DMC24SB-1, DMH18SB-1, DMH09SB-0, DMH24SB-1, and DMC18SB-1 are a series of high-efficiency air conditioning systems designed to meet diverse climate control needs. Each model is equipped with advanced technologies to ensure optimal performance, energy efficiency, and user comfort.

One of the standout features across this range is the incorporation of inverter technology. This technology allows the units to adjust the compressor speed based on the desired temperature, significantly reducing energy consumption compared to traditional systems. As a result, users can enjoy lower utility bills while maintaining a consistent indoor climate.

The DMC24SB-1 is particularly notable for its robust cooling capacity, making it ideal for larger spaces. It boasts a sleek design that complements modern interiors while providing efficient air distribution through its multi-directional airflow system. The unit is also equipped with a programmable timer and remote control for added convenience.

The DMH series, including the DMH18SB-1, DMH09SB-0, and DMH24SB-1, offers versatility in terms of size and cooling capacity. The DMH09SB-0 is perfect for smaller rooms, while the DMH24SB-1 can effectively cool larger areas. Each model in the series features a quiet operation mode, ensuring minimal noise when cooling or heating.

The DMC18SB-1 stands out for its dual functionality, providing both heating and cooling options. This model is equipped with an advanced Eco-friendly refrigerant that not only reduces environmental impact but also enhances overall system efficiency. Additionally, it features self-cleaning technology that eliminates dust and allergens, improving indoor air quality.

All models are designed with user-friendliness in mind, featuring clear digital displays and easy-to-navigate controls. Moreover, these heat controllers adhere to the highest energy efficiency ratings, ensuring they meet stringent environmental guidelines.

In summary, the Heat Controller line featuring models DMC24SB-1, DMH18SB-1, DMH09SB-0, DMH24SB-1, and DMC18SB-1 exemplifies cutting-edge heating and cooling solutions. With their advanced technologies, energy-efficient performance, and user-centric designs, these units are well-suited for both residential and commercial applications, offering reliable comfort year-round.
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