Samsung MH026FNCA service manual Connecting Up and Purging the Circuit, MH050FXCA2A

Page 91

10-2 Connecting Up and Purging the Circuit

• The air in the indoor unit and in the pipe must be purged. If air remains in the refrigeration pipes, it will affect the compressor, reduce to cooling capacity and could lead to a malfunction. Refrigerant for air purging is not charged in the outdoor unit. Use Vacuum Pump as shown at the right figure. Each unit must be purged in turn.

■MH050FXCA2A

1.Check the piping connections.

2.Connect the charging hose of low pressure side of manifold gauge to the packed valve having a service port (3/8" service valve) as shown at the figure.

3.Open the valve of the low pressure side of manifold gauge counter- clockwise.

4.Purge the air from the system using vacuum pump for about 10 minutes.

•Close the valve of the low pressure side of manifold gauge clockwise.

•Make sure that pressure gauge show -0.1MPa(-76cmHg) after about 10 minutes.

•This procedure is very important in order to avoid gas leak.

•Turn off the vacuum pump

•Remove the hose of the low pressure side of manifold gauge.

5.Set valve cork of both liquid side and gas side of packed valve to the open position.

6.Mount the valve stem nuts and the service port cap to the valve, and tighten them at the torque of 183kgf•cm with a torque wrench.

7.Check for gas leakage.

•At this time, especially check for gas leakage from the 3 way valve’s stem nuts, and from the service port cap.

Indoor

A-unit

Indoor

B-unit

Vacuum

Pump

Valve stem

Stem cap

Service port

10-3

Samsung Electronics

Page 90 Page 92
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Page 90 Page 92
Contents Free Joint Multi AIR Conditioner Contents 10-1 Precautions Others Disposing of the unitFeature of Product Product SpecificationsModel Product SpecificationsMH026FNCA Product Specificationscont MH026FECA MH035FECA MH052FECA 176&11470+6 Qfgn&#$ %## +VGOIndoor Unit Accessories Accessory and Option SpecificationsQFG0Q Remark Descriptions Code-NoUnit Indoor Unit AccessoriescontDescriptions Cable-tieTCKP2NWI1WV Outdoor Unit Accessories$# Cable-tie DB65-10088B Transmitter Unit AccessoriesGuetkrvkqp &J@KKN2JEP124#6+10 +/4 674$1 Abnormal conditions Operating Blue Red IndicatorsBreakaway of Cond MID sensor Remark DisplayOutdoor Unitcont Enter the Option Setup mode Setting Option Setup MethodFeature Feature Display Pressing the ON/OFF button Error ModeUnit operation test-run Technical Bulletin   Table of the option code  5VCPFCTF Necessary Tools Disassembly and ReassemblyIndoor Unit Procedure RemarkUnlock 3 hooks to fix Panel Front Tray Drain Back-Body Parts Procedure Remark 2 MH026FECA/MH035FECA Parts Procedure Drain Pan Parts Procedure Disassemble if after disassembling the Cabinet Top Motor Parts Procedure 3 MH052FECA Parts Procedure Detach the Motor Wire Connected to PCB and Capacitor Parts Procedure Samsung Electronics Detach the Evaporator from the set Control Samsung Electronics 1 MH050FXCA2A Outdoor UnitSamsung Electronics Detach the Compressor 2 MH080FXCA4A Parts Procedure Remark Use Monkey Spanner TLHK@A@3EASO=J@-=NPOEOP 2CTVU.KUV Samsung Electronics 2 MH052FNCAGuetkrvkqp 5RGEKHKECVKQP 0Q QFG0Q#50# 3 MH026FECA/MH035FECA 50# Parts List4 MH052FECA #55 %#$+$#5 #55 5%%/6         %##    13-1 #$ Wiring Diagram # a @KKN2JEPĠ?KJPMH050FXCA2A MH080FXCA4A Schematic Diagram Mhfeca Main PCBIndoor Unit PCB DiagramMhfnca 02- Ġ&J@KKN2JEP Ġ?KJP@ 4 # $% ‘ + = Q #5 *%#5  *&+ Ġ,QP@KKN2JEPTroubleshooting Reset button Checking and Testing operationsButton K1 times Pipe Checking Operation Auto Addressing ModeMode Function Move dip switch n1 of SW02 Model Type PictureConnected 0=A1=B2=C3=D Installation Test Mode with all indoor units functioningContents Auto address setting Operation case Try-run Check Error Basic Check Flow Fault Diagnosis by SymptomBasic Check Flowcont Hardware trouble Checking Outdoor ControllerLED1 Red Always on LED3 Yellow OFFIndex Value Remark Measuring point Normal valueChecking Temperature sensor -ELAI=P?DEJC  DA?GEJC3PCB Inspection ProcedureIndoor Unit Selecting Area for InstallationOutdoor Unit Remote Control Unit#FFKPITGHTKIGTCPV MH050FXCA2A Connecting Up and Purging the CircuitMH080FXCA4A 10-3-1 MH050FXCA2A Refrigerant Refill10-3-2 MH080FXCA4A Ncuu #VKPUVCNNCVKQP #VUGTXKEG 5#5CA*%8#5C4AOuter diameter Torquekg..cm Fixing Torque Final Torque Flare Nut Fixing Torque10-6-1 MH050FXCA2A Pump down ProcedureRelocation of the air conditioner 10-6-2 MH080FXCA4A 052 O O O Index for Model Name07 / O O O Refrigerating Cycle Diagram Samsung Electronics 11-4 544.4 Power/HeatPressure & Capacity mark Cal/s Kcal/h Btu/h Kg . m/s Ib . m/s11-5 Q & a for Non-trouble For Non-trouble Is it possible to install the outdoor unit outside? Class Description Remote controller wont operateAir CleannessCommon sense of refrigeration Air supplierElectronics

MH026FNCA specifications

The Samsung MH026FNCA is an innovative solution designed to meet the diverse needs of residential and commercial spaces. As a part of Samsung's advanced lineup of air conditioning systems, this model exemplifies the brand's commitment to quality, efficiency, and cutting-edge technology. With an array of features, the MH026FNCA stands out as an ideal choice for users seeking reliable climate control in their environments.

One of the standout characteristics of the Samsung MH026FNCA is its energy efficiency. Equipped with a powerful inverter technology, it adjusts the compressor speed to maintain the desired temperature with minimal energy consumption. This not only helps in reducing electricity bills but also contributes to a more sustainable lifestyle, making it an eco-friendly choice for consumers.

The MH026FNCA also incorporates a multi-stage filtration system, which significantly improves indoor air quality. This system includes a washable pre-filter and a high-performance HEPA filter that captures dust, allergens, and other microscopic particles, ensuring that the air circulated in the room is fresh and clean. This feature is particularly beneficial for those who suffer from allergies or respiratory issues.

In terms of usability, the Samsung MH026FNCA is designed with convenience in mind. It comes with a user-friendly remote control that allows users to adjust settings effortlessly from a distance. Additionally, its smart technology enables compatibility with various smart home systems, offering the ability to control the unit via smartphone apps or voice commands for seamless integration into modern living spaces.

The robust build quality of the MH026FNCA enhances its reliability, ensuring long-lasting performance even in demanding conditions. With a sleek design and compact size, it can easily blend into different interior decors while providing quick and effective cooling or heating, depending on the season.

Furthermore, the MH026FNCA features advanced noise reduction technologies, making it one of the quietest models in its class. Users can enjoy a peaceful environment without the distraction of loud operational sounds, making it ideal for bedrooms, offices, and public spaces where tranquility is essential.

Overall, the Samsung MH026FNCA is a testament to innovation in air conditioning technology, combining energy efficiency, advanced filtration, smart features, and aesthetic appeal. For those in search of an effective climate control solution, this model sets a high standard that meets various consumer requirements without compromising on performance or comfort.
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