Heat Controller DMC18SB-1 Gas Charging, After Evacuation, Purge the air from the charge hose

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Troubleshooting Guide

Gas Charging

(After Evacuation)

Indoor unit

Liquid side

 

Open

Outdoor unit

3-Way valve

Gas side

Open

 

3-Way

Check valve

valve

 

Charging cylinder

Lo

(1) OPEN

CLOSE

• Procedure

(1)Connect the charge hose to the charging cylinder.

–Connect the charge hose which you dis- connected from the vacuum pump to the valve at the bottom of the cylinder.

–If you are using a gas cylinder, also use a scale and reverse the cylinder so that the system can be charged with liquid.

(2)Purge the air from the charge hose.

–Open the valve at the bottom of the cylin- der and press the check valve on the charge set to purge the air. (Be careful of the liquid refrigerant). The procedure is the same if using a gas cylinder.

(3)Open the valve (Lo side on the charge set and charge the system with liquid refrig- erant.

–If the system can not be charged with the specified amount of refrigerant, it can be charged with a little at a time (approximate- ly 0.33 lb each time) while operating the air conditioner in the cooling cycle; however, one time is not sufficient, wait approxi- mately 1 minute and then repeat the pro- cedure (pumping down-pin).

\

This is different from previous procedures. Because you are charging with liquid refrigerant from the gas side, absolutely do not attempt to charge with larger amounts of liquid refrigerant while operating the air conditioner.

(4)Immediately disconnect the charge hose from the 3-way valve’s service port.

–Stopping partway will allow the gas to be discharged.

–If the system has been charged with liquid refrigerant while operating the air condi- tioner turn off the air conditioner before disconnecting the hose.

(5)Mount the valve stem nuts and the service port nut.

–Use torque wrench to tighten the service port nut to a torque of 13 lb·ft.

–Be sure to check for gas leakage.

This unit is charged with R-410A.

Pay attention not to charge R-22.

48Room Air Conditioner

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Contents Heat CONTROLLER, INC Table of Contents Safety Precautions InstallationBe sure not to do Be sure to follow the instruction Operation Do not handle the pipe by your- selfCostomerDo not allow water to run into electric part 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 flowDisuse Do not drink the water drained from the unitReplace all the batteries in the remote Dimensions Indoor UnitModel Btu Series Mminch 109042.9 30011.8 1787.0Outdoor Unit 9k, 12k9k, 12k Unit18k, 24k Symbols Used In This Manual FeaturesIntroduction 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 onConnecting The Piping Indoor unit installationIndoor Wrap the insulation material around the connecting portion Tighten the flare nut with a wrenchInsert the connecting cable into the indoor unit Indoor unit installationTape the drain hose and the connecting cable 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 SideProcedure Pumping DownAir purging of the charge hose 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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