5. Refrigerant Tubing

5-1. Use of the Flaring Method

Many of the conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units. In this method, the copper tubes are flared at each end and connected with flare nuts.

5-2. Flaring Procedure with a Flare Tool

(1)Cut the copper tube to the required length with a tube cutter. It is recommended to cut approx. 12" to 20" (30 to 50 cm) longer than the tubing length you estimate.

(2)Remove burrs at the end of the copper tube with a tube reamer or file. This process is important and should be done carefully to make a good flare.

(Fig. 47)

NOTE

When reaming, hold the tube end downward and be sure that no copper scraps fall into the tube. (Fig. 48)

(3)Remove the flare nut from the unit and be sure to mount it on the copper tube.

(4)Make a flare at the end of copper tube with a flare tool.* (Figs. 49a and 49b)

(*Use “RIGID” or equivalent.)

NOTE

A good flare should have the following characteristics:

●inside surface is glossy and smooth.

●edge is smooth.

●tapered sides are of uniform length.

5-3. Caution before Connecting Tubes Tightly

a)Be sure to apply a sealing cap or water-proof tape to prevent dust or water from getting into the tubes before they are used.

b)Be sure to apply refrigerant lubricant to the match- ing surfaces of the flare and union before connect- ing them together. This is effective for reducing gas leaks. (Fig. 50)

c)For proper connection, align the union tube and flare tube straight with each other, then screw in the flare nut lightly at first to obtain a smooth match. (Fig. 51)

Deburring

Before

After

Fig. 47

Copper tubing

Reamer

 

 

 

Fig. 48

If the special R410A

If the previous flare tool

flare tool is used:

(clutch-type) is used:

 

 

0 to 0.0196"

 

 

0.0472" (1.2 mm)

 

 

 

 

 

 

(0 to 0.5 mm)

Adjust so that the amount of tube

 

 

 

 

 

 

protrusion is as shown in the figure.

Fig. 49a

Flare nut

Copper tubing

Flare tool

Fig. 49b

Apply refrigerant

lubricant here and here

Fig. 50

Union

Flare nut

Fig. 51

19

Page 99 Page 101
Page 100
Image 100
Sanyo C1271, CL0971, CL1271, C0971 Refrigerant Tubing, Use of the Flaring Method, Flaring Procedure with a Flare Tool
Page 99 Page 101

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.

The Sanyo C0971 stands out for its user-friendly interface and connectivity features. Equipped with multiple ports, it supports various multimedia inputs, including HDMI, USB, and VGA. This adaptability allows users to connect an array of devices, making it an excellent choice for presentations or media playback. The C0971 also employs sophisticated image processing technology, enhancing the clarity and detail of both video and images. With a focus on ease of use, its intuitive menu navigation allows even novice users to access the full range of features without difficulty.

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.

Finally, the Sanyo CL0971 combines portability with powerful features, making it an ideal option for individuals on the go. Its lightweight design ensures easy transport, while the battery life enables prolonged usage without the need for frequent recharges. This model's advanced connectivity options further enhance its versatility, allowing seamless integration with smartphones and tablets.

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.
Top Page Image Contents