6 REFRIGERANT PIPING

Tightening connection

Align the centers of the connecting pipes and tighten the flare nut as far as possible with your fingers. Then tighten the nut with a spanner and torque wrench as shown in the figure.

CAUTION

•Do not apply excess torque. Otherwise, the nut may crack depending on the conditions.

 

(Unit : N•m)

 

 

Outer diam. of copper pipe

Tightening torque

 

 

6.35 mm (diam.)

14 to 18 (1.4 to 1.8 kgf•m)

 

 

9.52 mm (diam.)

33 to 42 (3.3 to 4.2 kgf•m)

 

 

12.7 mm (diam.)

50 to 62 (5.0 to 6.2 kgf•m)

 

 

15.9 mm (diam.)

63 to 77 (6.3 to 7.7 kgf•m)

 

 

•Tightening torque of flare pipe connections

Pressure of R410A becomes higher than that of R22. (Approx. 1.6 times) Therefore, using a torque wrench, tighten firmly the flare pipe connecting sections which connect the indoor and outdoor units up to the specified tightening torque.

Incorrect connections may cause not only a gas leakage, but also a trouble of the refrigeration cycle or compressor damage.

Flare at

indoor unit side

 

Flare at

 

outdoor unit side

Half union

Flare nut

Externally

Internally

threaded side

threaded side

Use a wrench to secure.

Use a torque wrench to tighten.

7 EVACUATING

AIR PURGE

Evacuate the air in the connecting pipes and in the indoor unit using vacuum pump.

Do not use the refrigerant in the outdoor unit. For details, see the manual of vacuum pump.

Use a vacuum pump

Be sure to use a vacuum pump with counter-flow prevention function so that inside oil of the pump does not flow backward into pipes of the air conditioner when the pump stops.

1.Connect the charge hose from the manifold valve to the service port of the gas side packed valve.

2.Connect the charge hose to the port of vacuum pump.

3.Open fully the low pressure side handle of the gauge manifold valve.

4.Operate the vacuum pump to start for evacuating.

Perform evacuating for about 35 minutes if the piping length is total 30 meters for model SM560 and 50 meters for model SM800.

(assuming a pump capacity of 27 liters per minute.) Then confirm that the compound pressure gauge reading is –101 kPa ( –76 cmHg).

5.Close the low pressure side valve handle of gauge manifold.

6.Open fully the valve stem of the packed valves (both sides of Gas and Liquid).

7.Remove the charging hose from the service port.

8.Securely tighten the caps on the packed valves.

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Toshiba RAM-SM560KRT-E, RAM-SM800KRT-E, RAM-SM560AT-E, RAM-SM800BT-E, RAM-SM560UT-E, RAM-SM800AT-E, RAM-SM800UT-E Evacuating
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RAM-SM560BT-E, RAM-SM560KRT-E, RAM-SM800UT-E, RAM-SM800AT-E, RAM-SM560UT-E specifications

Toshiba has established itself as a leader in the memory module market with a range of products tailored for various computing needs. Among its offerings, the RAM-SM560AT-E, RAM-SM560UT-E, RAM-SM800KRT-E, RAM-SM800UT-E, and RAM-SM560BT-E stand out due to their advanced features, high performance, and reliable technologies.

The RAM-SM560AT-E is engineered for optimal efficiency and speed, specifically targeting the demands of modern applications. With a capacity of up to 8GB, this module leverages DDR4 technology, allowing for faster data transfers and improved energy efficiency compared to previous generations. The design focuses on low power consumption which is crucial for laptop users who seek longer battery life without compromising performance.

Next in line, the RAM-SM560UT-E offers similar capacities but is tailored with higher clock speeds. This model is particularly beneficial for gamers and professionals engaging in graphics-intensive tasks. Its enhanced throughput enables smoother multitasking and significantly reduces latency during operations that require extensive computational power.

The RAM-SM800KRT-E is a powerhouse within the lineup, boasting increased bandwidth and specifications that cater to high-end systems. Its capacity reaches up to 16GB, and it supports advanced features like dual-channel configuration, which maximizes performance by allowing simultaneous data transfer across channels. This is ideal for users working with large datasets, as it significantly accelerates processing times.

On the other hand, the RAM-SM800UT-E is designed for versatility, accommodating a broader range of devices, from ultrabooks to gaming laptops. Its emphasis on thermal management ensures reliability during extended usage. Coupled with error-correcting code (ECC) technology, it provides enhanced data integrity, making it suitable for mission-critical applications.

Lastly, the RAM-SM560BT-E is geared towards users who value balance between performance and cost. It features a robust construction and is compatible with a variety of motherboards. This makes it an excellent choice for upgrades in systems that require reliable performance without extensive investment.

In summary, Toshiba's RAM lineup, featuring the RAM-SM560AT-E, RAM-SM560UT-E, RAM-SM800KRT-E, RAM-SM800UT-E, and RAM-SM560BT-E, showcases a diverse array of memory solutions. Each model is built with cutting-edge technology, meeting the diverse demands of users ranging from casual home users to high-power gaming enthusiasts. With high capacity options, advanced data handling features, and energy-efficient designs, Toshiba continues to be at the forefront of memory technology.
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