4. Installing the refrigerant piping

Refrigerant pipe and insulating material

Pipe cover (large)

Pipe cover (small)

Refrigerant pipe (gas)

Refrigerant pipe (liquid)

Band

Cross-sectional view of connection

Pipe

Insulating material Squeeze

4.3. Indoor unit (Fig. 4-3)

Heat insulation for refrigerant pipes:

1Wrap the enclosed large-sized pipe cover around the gas pipe, making sure that the end of the pipe cover touches the side of the unit.

2Wrap the enclosed small-sized pipe cover around the liquid pipe, making sure that the end of the pipe cover touches the side of the unit.

3Secure both ends of each pipe cover with the enclosed bands. (Attach the bands 20 mm, 25/32 inch from the ends of the pipe cover.)

•After connecting the refrigerant piping to the indoor unit, be sure to test the pipe connections for gas leakage with nitrogen gas. (Check that there is no refrigerant leakage from the refrigerant piping to the indoor unit.)

4.4. For twin/triple combination

Refer to the outdoor unit installation manual.

,

Fig. 4-3

5. Drainage piping work

Max. 65 ft

5 to 7 ft

5.1. Drainage piping work (Fig. 5-1)

•Use VP25 (O.D. ø32 mm, 1-1/4 inch PVC TUBE) for drain piping and provide 1/100 or more downward slope.

•Be sure to connect the piping joints using a polyvinyl type adhesive.

•Observe the fi gure for piping work.

•Use the included drain hose to change the extraction direction.

Max. 6 inch

Fig. 5-1

Correct piping Wrong piping

Insulation (9 mm, 23/64 inch or more) Downward slope (1/100 or more)

Grouped piping

O.D. ø32 mm, 1-1/4 inch PVC TUBE

Make it as large as possible Indoor unit

Make the piping size large for grouped piping.

Support metal

Air bleeder

Raised

Odor trap

Downward slope (1/100 or more)

O.D. ø38 mm, 1-1/2 inch PVC TUBE for grouped piping.(9 mm, 23/64 inch or more insulation)

Up to 850 mm, 33-7/16 inch

 

 

(inch)

7/16

 

 

1

1

1

 

 

Fig. 5-2

1.Connect the drain socket (supplied with the unit) to the drain port. (Fig. 5-2) (Fix the tube using PVC adhesive then secure it with a band.)

2.Install a locally purchased drain pipe (PVC pipe, O.D. ø32mm, 1-1/4 inch). (Fix the pipe using PVC adhesive then secure it with a band.)

3.Insulate the tube and pipe. (PVC pipe, O.D. ø32mm, 1-1/4 inch and socket) 4.Check that drain fl ows smoothly.

5.Insulate the drain port with insulating material, then secure the material with a band. (Both insulating material and band are supplied with the unit.)

Unit

Drain pipe (O.D. ø32mm, 1-1/4inch PVC

 

TUBE)

Insulating material

Insulating material (purchased locally)

Band

Transparent PVC pipe

Drain port (transparent)

O.D. ø32 mm, 1-1/4 inch PVC TUBE (Slope

 

1/100 or more)

Insertion margin

Drain socket

Matching

 

6

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Image 6
Mitsumi electronic PLA-ABA installation manual Indoor unit Fig, For twin/triple combination, Drainage piping work Fig
Page 5 Page 7

PLA-ABA specifications

Mitsumi Electric, a leading manufacturer in the electronic components sector, has made significant strides in audio equipment with the development of the PLA-ABA, a premium audio amplifier. This device is engineered to deliver exceptional sound quality while integrating advanced technologies that enhance its performance and usability.

One of the standout features of the PLA-ABA is its class-D amplifier architecture. This design ensures high efficiency, allowing the device to operate coolly even under heavy load conditions. The amplifier boasts a power output that can drive a wide range of speaker systems, making it suitable for both casual listeners and audio professionals. With a total harmonic distortion (THD) level that is notably low, users can experience pristine audio reproduction without the unwanted artifacts that often plague lower-quality amplifiers.

In addition to its robust performance characteristics, the PLA-ABA is equipped with advanced digital signal processing (DSP). This technology allows for various audio enhancement features, including equalization settings that can be adjusted to suit different musical genres or personal preferences. The user-friendly interface makes it easy to navigate through these settings, ensuring that users can customize their audio experience effortlessly.

Connectivity is another facet where the PLA-ABA excels. It supports multiple input options, including AUX, optical, and Bluetooth, making it versatile for various setups, whether for home theater systems or portable use. The integration of Bluetooth technology not only enables wireless streaming from smartphones and tablets but also ensures a stable connection with minimal latency, making it perfect for both music streaming and gaming.

Durability is paramount in the design of the PLA-ABA. The chassis is constructed from high-grade materials that not only provide a sleek aesthetic but also protect internal components from electromagnetic interference and physical damage. This attention to ruggedness makes the amplifier suitable for both stationary and mobile applications.

Moreover, Mitsumi has placed a strong emphasis on energy efficiency with the PLA-ABA. The device incorporates features that help reduce power consumption when not in use, contributing to a smaller carbon footprint, while still delivering the high-quality audio performance that users expect.

In summary, the Mitsumi electronic PLA-ABA represents a blend of cutting-edge technology and practical design, making it a formidable choice for audiophiles and casual users alike. Its combination of class-D amplification, advanced DSP, versatile connectivity options, and durable construction positions it as a leading product in its category, setting a benchmark for future audio amplifiers.
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