Heat Controller DMH09SB-0, DMC18SB-1, DMC12SB-0 Phenomena in case of connecting error, Indoor Unit

Page 59

Troubleshooting Guide

The phenomena in case of connecting error

INDOOR UNIT

Connector Type

Condition

Phenomena

CN-DC/DC

Open and connecting error

• The same as the phenomenon of Outdoor Unit.

Blue

Black

Brown

Red

• The indoor fan does not operate.

CN-MOTOR

Open

• The operation indicator of Indoor unit blinks 8 times.

Open

• The up/down vane does not operate.

CN-UP/DOWN

Short between terminals

• The up/down vane does not smoothly operate.

CN-DISP

Open

• It does not operate with a remote controller.

• The operation indicator blinks once.

On for 0.5 second

Open

Off for 3 seconds

• The compressor and the outdoor fan stop.

• The indoor fan speed is low.

CN-TH

• The operation indicator blinks once

Short between terminals

(on for 0.5 second, off for 3 seconds).

• The compressor operates continuously regardless

(

and

) of ROOM-TH.

of the setting temperature and the variation of room

temperature.

Short between terminals

• The operation indicator blinks once

(

and

) of PIPE-TH.

(on for 0.5 second, off for 3 seconds)

• Continuous operation

Service Manual 59

Image 59

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 could result in personal injury and product dam- age There is risk of fire or electrical shockThere is risk of electric shock There is risk of electrical shockDo not block the inlet or outlet of air flow Water is drained away properly ProductLeakage Do not direct airflow at room occu- pantsReplace all the batteries in the remote DisuseDo not drink the water drained from the unit Indoor Unit DimensionsMminch 109042.9 30011.8 1787.0 Model Btu SeriesUnit Outdoor Unit9k, 12k 9k, 12k18k, 24k Introduction Symbols Used In This ManualFeatures Read carefully, and then follow step by step InstallationInstallation Parts Installation ToolsInstallation Map This Product Contains R-410A Refrigerant Confirm The RefrigerantOutdoor unit Rooftop InstallationsSelect The Best Location Indoor unitPiping Length And Elevation Drill a Hole In The Wall How To Mount Installation PlatePutting nut on Flaring WorkCut the pipes and the cable Burrs removalIndoor Connecting The PipingIndoor unit installation Tighten the flare nut with a wrench Wrap the insulation material around the connecting portionTape the drain hose and the connecting cable Insert the connecting cable into the indoor unitIndoor unit installation Piping for passage through piping hole Incorrect case Correct caseConnection Of Piping -Outdoor Connection Of The Drain HoseOutdoor unit Connection Of The CableInstallation Avoid these situations Checking The DrainageDrain piping Drain hose should point downward for easy drain flowSeal small openings around pipings with a gum type sealer Forming The PipingLeak test Air PurgingAir purging With Vacuum Pump PreparationClockwise to fully open the valve EvacuationFinishing the job Connect the charge hose end describedImportantUnit is critically charged ChargingEvaluation of the performance Prepare remote controlTest Running Settlement of outdoor unitFunction of Controls Cooling Mode OperationHealthy Dehumidification Mode OperationDefrost Control Heating Mode OperationJet Cool Mode Operation H/P Model Sleep Timer OperationChaos Natural Wind Mode Jet Cool Mode Operation C/O ModelProtection of the evaporator pipe from frosting Forced operationTest operation Auto restartCooling Model Display FunctionSelf-diagnosis Function Heating ModelNd F Button Remote Control OperationsTo remove the Grille from the Chassis DisassemblyTo remove the Evaporator When repair, do not damage the Caution labelTo remove the Control Box To remove the Discharge GrilleTo remove the Cross-Flow Fan To remove the Motor CoverCooling & Heating Models Troubleshooting GuideRefrigeration Cycle Diagram Cooling Only ModelsWay Valve Liquid Side Way, 3-way ValveAir purging of the charge hose ProcedurePumping Down Gas leakage Balance Refrigerant of the 3-way ValveAll amount of refrigerant leaked Connect the charge hose to the charging cylinder Mount the valve stem nuts and the service port nutGas Charging After EvacuationAdditional gas charging Method of using graphMethod of using equation According to Indoor & Outdoor TemperatureTrouble analysis Cycle PartsProduct does not operate at all Electronic Parts 9k modelElectronic 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 Nector When indoor Fan does not operateWhen Vertical Louver does not operate When a comunication error occurs Indoor Unit Phenomena in case of connecting errorOutdoor Unit Electric Control Device Schematic DiagramOutdoor 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 Cooling Only Product SpecificationsDMH09SB-0 DMH12SB-0 DMH18SB-1 DMH24SB-1 Cooling & HeatingHeat 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.