●Do not use a spanner to tighten the valve stem caps. Doing so may damage the valves.

●Depending on the installation conditions, applying excessive torque may cause the nuts to crack.

Precautions for Packed Valve Operation

●If the packed valve is left for a long time with the valve stem cap removed, refrigerant will leak from the valve. Therefore, do not leave the valve stem cap removed.

●Use a torque wrench to securely tighten the valve stem cap.

●Valve stem cap tightening torque:.

Charging port

8 – 10 Nm (80 - 100 kgfcm)

 

 

 

9,52 mm (Narrow side)

19 – 21 N m

(190 - 210 kgf cm)

 

 

 

15,88 mm (Wide side))

28 – 32 N m

(280 - 320 kgf cm)

 

 

 

4-3. Insulating the Refrigerant Tubing

Tubing Insulation

●Thermal insulation must be applied to all unit tub- ing, including distribution joint (purchased sepa- rately).

*For gas tubing, the insulation material must be heat resistant to 120°C or above. For other tubing, it must be heat resistant to 80°C or above.

Insulation material thickness must be 10 mm or greater.

If the conditions inside the ceiling exceed DB 30°C and RH 70%, increase the thickness of the gas tubing insulation material by 1 step.

Packed valve

Charging port

Valve stem

 

Main valve

Valve stem cap

 

 

Fig. 4-8

Two tubes arranged together

Inter-unit

Wide tube

control wiring

Narrow tube

 

Armoring tape

 

Insulation

 

Fig. 4-9

Sealer (supplied)

Insulation tape (white)

 

 

(supplied)

 

Flare insulator (supplied)

Unit side

Tube insulator

(not supplied)

insulator

Heat resistant

 

120°C or above

Flare nut

Vinyl clamps (supplied)

 

CAUTION

Taping the flare nuts

If the exterior of the outdoor unit valves has been finished with a square duct covering, make sure you allow suffi- cient space to use the valves and to allow the panels to be attached and removed.

 

Fig. 4-10

 

Refrigerant tubing and insulator

Drain insulator

(not supplied)

Drain pipe and insulator

and clamp.

Large

(not supplied)

(supplied)

 

Wind the white insulation tape around the flare nuts at the wide tube connections. Then cover up the tubing connections with the flare insulator, and fill the gap at the union with the supplied black insulation tape. Finally, fasten the insulator at both ends with the sup- plied vinyl clamps. (Fig. 4-10)

Insulation material

The material used for insulation must have good insu- lation characteristics, be easy to use, be age resis- tant, and must not easily absorb moisture.

After a tube has been insu-

lated, never try to bend it

CAUTION into a narrow curve because it can cause the tube to break or crack.

Packing

 

 

clamp.

 

Insulation

Small

 

tape

hose band

 

Vinyl

(supplied)

 

Flare

clamp

 

 

insulator

 

Seal

 

 

The procedure used for

 

installing the insulator for

 

both wide and narrow

 

tubes is the same.

Fig. 4-11

Never grasp the drain or refrigerant connecting outlets when moving the unit.

19

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Sanyo SPW-XR254EH56 Precautions for Packed Valve Operation, Insulating the Refrigerant Tubing Tubing Insulation
Page 18 Page 20

SPW-XR254EH56 specifications

The Sanyo SPW-XR254EH56 is a cutting-edge air conditioning unit designed for both residential and commercial applications, offering reliable performance along with advanced features. This model is part of Sanyo’s commitment to providing energy-efficient climate control solutions that ensure comfort while minimizing environmental impact.

One of the standout features of the SPW-XR254EH56 is its high energy efficiency rating. It incorporates advanced inverter technology that allows the system to automatically adjust its cooling and heating output based on the current demand. This ensures that the unit operates at optimal levels, significantly reducing energy consumption and costs. The inverter also helps maintain a consistent temperature within the space, enhancing comfort while preventing the temperature fluctuations commonly associated with traditional units.

In terms of cooling capability, the SPW-XR254EH56 boasts impressive performance metrics. It is designed to efficiently cool medium to large spaces, making it ideal for offices, conference rooms, or larger homes. The unit features a multi-directional airflow system that promotes even distribution of cool air throughout the room, ensuring that every corner is comfortably conditioned.

The Sanyo SPW-XR254EH56 also comes equipped with a range of smart technologies. Its integrated Wi-Fi capability allows users to monitor and control the unit remotely via a smartphone app. This feature enables scheduling, temperature adjustments, and energy usage tracking, offering convenience and enhancing user experience. Additionally, the model includes a programmable timer that further supports energy savings by allowing users to set specific operating times based on their routines.

Noise reduction is another key feature of the SPW-XR254EH56. The unit operates quietly, making it suitable for environments where sound levels need to be kept to a minimum, such as bedrooms or quiet office spaces.

Moreover, the SPW-XR254EH56 is designed with a sleek, modern aesthetic that can seamlessly blend into various interiors. Its durable and compact design not only enhances visual appeal but also ensures reliability and longevity.

In summary, the Sanyo SPW-XR254EH56 stands out for its energy efficiency, advanced inverter technology, smart capabilities, quiet operation, and sleek design, making it an excellent choice for those seeking a dependable and modern air conditioning solution.
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