(7)If Ch displays on the PCB display after tracking, it is the state of compressor not preheated, which means the operation is possible after 2 and half hours. (Supply the power and preheat the compressor).

(8)If the preheating of compressor is completed, the communication is performed between indoor unit connected and options. It is the normal at the time when the address on the right display is shown as many as shown on the left side display.

(9)Check through the PC connected with outdoor unit whether the data is correct from temperature sensor and electronic expansion valve.

(10)Once the above process is all completed, press the test operation button on PCB.

-Check before pressing key whether all the service valves are open.

(11)Check the high and low pressure through the manifold gauge .

-Refer to the pressure table separately provided as per the outdoor temperature and piping length.

-Since the high pressure and low pressure varies at the initial operation, take the input data 20 minutes after the start of compressor at least.

-Since the compressor may reciprocate if there is loud noise or if the low and high pressure do not vary, check the power L1(R)-L2(S)-L3(T) from (1). If there is not trouble in the power but the problems continues to occur, check the wire connected to the compressor.

● Neglect the RCS on the compressor power incoming and check the order of T1-L1(R)-red, T2-L2(S)-white, T3-L3(T)-black.

(12)Check through the PC connected to the outdoor unit.

-Check the temperature, RPM, power and opening of electronic expansion valve for each indoor unit.

-Check whether the compressor discharge, condenser outlet temperature, outdoor fan are operated.

(13)During the test operation, check whether error is shown on the outdoor PCB.

-Test operation shall be continued for more than 2 hours continuously at least.

-After the long initial operation of outdoor unit, check whether the condensate is well treated.

(14)Press again the test button to complete the test operation. (Operation completion of whole rooms)

(15)If the test operation mode is completed, operate one indoor unit only in cooling mode.

-The operation shall be continued for more than 30 minutes for one unit and then check the temperature of indoor unit connected through PC to check the leak of electronic expansion valve. If there is no problem, put off the indoor unit which is operating and operate another indoor unit to check the electronic expansion valve leak as in the above manner.

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Samsung 3759 technical manual Check the high and low pressure through the manifold gauge
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3759 specifications

The Samsung 3759 is a cutting-edge smartphone that exemplifies the renowned craftsmanship and innovative technology that Samsung is known for. Released as part of the Galaxy series, this model has quickly garnered attention for its impressive features and sophisticated design.

One of the standout features of the Samsung 3759 is its stunning display. With a large AMOLED screen, users can expect vibrant colors, deep blacks, and exceptional clarity. This display not only enhances the visual experience for streaming videos and playing games but also makes everyday tasks like browsing the internet or reading emails more enjoyable. The screen's high resolution ensures that images and text are sharp and clear, making it ideal for both multimedia consumption and professional use.

Under the hood, the Samsung 3759 is powered by a robust processor that ensures smooth performance across applications. Whether multitasking between heavy-duty apps or smoothly running graphics-intensive games, the device handles it all with ease. Coupled with ample RAM, users are assured of a seamless experience, reducing lag and enhancing productivity.

Another impressive characteristic of the Samsung 3759 is its camera system. Featuring a high-resolution primary camera along with advanced imaging technologies, it allows users to capture stunning photos and videos in various lighting conditions. The inclusion of multiple lenses, such as ultra-wide and macro, provides flexibility and creative options for photography enthusiasts. Additionally, the front camera is equipped with features aimed at optimizing selfies and video calls, ensuring that users can look their best in every situation.

Battery life is another area where the Samsung 3759 shines. With a long-lasting battery, users can enjoy their device for extended periods without the need for frequent charging. The inclusion of fast charging technology means that users can quickly recharge their device, minimizing downtime and keeping them connected throughout the day.

The Samsung 3759 also emphasizes user security and convenience. With biometric authentication features like facial recognition and fingerprint scanning, users can ensure their data remains secure while enjoying easy access to their device. The smartphone runs on a user-friendly interface, providing easy navigation and customization options to enhance the overall user experience.

In conclusion, the Samsung 3759 is a remarkable smartphone that combines cutting-edge technology with user-centric design. With its impressive display, powerful performance, advanced camera capabilities, long battery life, and robust security features, it is a compelling choice for anyone in the market for a new smartphone. Whether for work or play, the Samsung 3759 meets the demands of modern users with grace and efficiency.
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