Sanyo C0971, C1271, CL0971, CL1271 Case Refrigerant is Leaking, Welding leaking points, Recharging

Models: CL0971 C1271 C0971 CL1271

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11-6. In Case Refrigerant is Leaking

CAUTION

Never attempt to charge additional refrigerant when refrigerant has been leaking from the unit. Follow the procedure described below to locate points of leaks and carry out repairs, then recharge the refrigerant.

(1) Detecting Leaks

Use the detector for R410A to locate refrigerant leak points.

(2) Recovering refrigerant

Never release the gas to the atmosphere; recover residual refrigerant using the refrigerant recovery unit for R410A, instead.

Do not reuse the recovered refrigerant because its composition will have been altered.

(3) Welding leaking points

Confirm again that no residual refrigerant exists in the unit before starting welding.

Weld securely using flux and wax for R410A.

Prevent oxide film from forming inside the tubes utilizing substitution with nitrogen (N2) in the refrigerant circuit of the unit. Leave ends of tubes open during welding.

(4) Checking for sealing

Use nitrogen gas for the pressurized gas, and never use a refrigerant other than R410A. Also do not use oxygen or any flammable gas.

(5) Evacuation

Use a solenoid valve-installed vacuum pump so that even if power is cut off in the middle of evacuation of air due to a power interruption, the valve will prevent the pump oil from flowing back.

The equipment may be damaged if moisture remains in the tubing, thus carry out the evacuation thoroughly.

When using a vacuum pump with exhaust air volume more than 0.883 cu.ft./min. and ultimate vacuum pressure rate of 50 micron Hg.

(1) Detect leaks

OK

(2)Recover refrigerant

OK

(3)Weld leaking points

OK

(4)Check for sealing

OK

(5)Evacuation

OK

(6) Recharge

Standard time for evacuation

Length of tubing

Less than 33 ft. (10 m)

More than 33 ft. (10 m)

Evacuation time

More than 10 minutes

More than 15 minutes

(6) Recharging

Recharge unit in the same manner explained on the previous page "(5) Recharging."

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Sanyo C0971, C1271, CL0971, CL1271 service manual Case Refrigerant is Leaking, Welding leaking points, Recharging

CL0971, C1271, C0971, CL1271 specifications

The Sanyo CL1271, C0971, C1271, and CL0971 are a series of advanced audio and video technologies that showcase Sanyo's commitment to innovation and quality in consumer electronics. These models exemplify solid performance and versatility, catering to a wide range of user needs.

The Sanyo CL1271 is recognized for its compact design and robust functionality. It features high-definition video output, which elevates the viewing experience with crisp images and vibrant colors. Its energy-efficient design is an asset for users who are conscious of power consumption while still seeking premium performance. The device also incorporates advanced audio technologies, ensuring that sound quality matches the high-definition visuals. The integration of built-in speakers eliminates the need for additional audio equipment, making the CL1271 a convenient choice for casual viewing.

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The Sanyo C1271 builds on the foundation established by its predecessors, adding additional enhancements in terms of screen resolution and color accuracy. With a full HD display, it offers exceptional picture quality that is ideal for both entertainment and educational purposes. This model is particularly suited for professional environments, thanks to its superior performance in bright settings. The C1271's durability and reliability are other key points, making it a long-term investment for users who value quality.

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Overall, the Sanyo CL1271, C0971, C1271, and CL0971 represent a comprehensive solution for anyone seeking high-quality audio-visual equipment. With distinct features and technologies, these models cater to a diverse range of needs, ensuring that users experience the best of what Sanyo has to offer.