Materials for Brazing, Flux | Toshiba RAV-SM1102UT-E, RAV-SM802UT-E

1)Be sure to make setting so that liquid can be charged.

2)When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.

It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant. Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the cylinder upside down if cylinder is not equipped with siphon.

[ Cylinder with siphon ]	[ Cylinder without siphon ]
Gauge manifold	Gauge manifold
OUTDOOR unit	OUTDOOR unit

Refrigerant

cylinder

Electronic balance

R410A refrigerant is HFC mixed refrigerant. Therefore, if it is charged with gas, the composi- tion of the charged refrigerant changes and the characteristics of the equipment varies.

cylinder Refrigerant

Electronic balance

Siphon

Fig. 7-4-2

7-5. Brazing of Pipes

7-5-1. Materials for Brazing

1.Silver brazing filler

Silver brazing filler is an alloy mainly composed of silver and copper. It is used to join iron, copper or copper alloy, and is relatively expensive though it excels in solderability.

2.Phosphor bronze brazing filler

Phosphor bronze brazing filler is generally used to join copper or copper alloy.

3.Low temperature brazing filler

Low temperature brazing filler is generally called solder, and is an alloy of tin and lead. Since it is weak in adhesive strength, do not use it for refrigerant pipes.

1)Phosphor bronze brazing filler tends to react with sulfur and produce a fragile compound water solution, which may cause a gas leakage. Therefore, use any other type of brazing filler at a hot spring resort, etc., and coat the surface with a paint.

2)When performing brazing again at time of servicing, use the same type of brazing filler.

7-5-2. Flux

1.Reason why flux is necessary

•By removing the oxide film and any foreign matter on the metal surface, it assists the flow of brazing filler.

•In the brazing process, it prevents the metal surface from being oxidized.

•By reducing the brazing filler's surface tension, the brazing filler adheres better to the treated metal.

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RAV-SM562UT-E, RAV-SM802UT-E, RAV-SM1402UT-E, RAV-SM1102UT-E specifications

Toshiba has established itself as a leading name in the field of heating, ventilation, and air conditioning (HVAC) systems. Among their extensive range, the RAV-SM802UT-E, RAV-SM1102UT-E, RAV-SM1402UT-E, and RAV-SM562UT-E stand out for their performance, efficiency, and innovative technology.

The Toshiba RAV-SM802UT-E is designed for medium-sized commercial spaces, providing a cooling capacity of 8 kW. It employs advanced inverter technology, which enables it to adjust the compressor speed based on the load demand. This adaptability leads to a significant decrease in energy consumption, making the unit both eco-friendly and cost-effective. The unit also features a high-efficiency rotary compressor and a wide operating temperature range, ensuring reliable performance even in extreme weather conditions.

Next in line, the RAV-SM1102UT-E offers an impressive 11 kW cooling capacity, making it suitable for larger commercial applications. This model incorporates Toshiba’s cutting-edge Superlink technology, which allows multiple indoor units to be connected to a single outdoor unit, providing flexible installation options. The RAV-SM1102UT-E is also equipped with a sleek and modern design that blends seamlessly with any architecture while ensuring low noise levels during operation, enhancing comfort in the workspace.

The RAV-SM1402UT-E is a powerhouse among the series, boasting a cooling capacity of 14 kW. It is built with an enhanced refrigerant management system that minimizes refrigerant leaks and optimizes thermal efficiency. This model supports smart building management systems, making it an ideal choice for tech-savvy businesses looking to integrate their HVAC systems into a broader energy management framework. Furthermore, it maintains high EU energy efficiency ratings, verifying Toshiba's commitment to environmental sustainability.

Lastly, the RAV-SM562UT-E, with its 5.6 kW cooling capacity, is tailored for smaller commercial environments and residential use. It retains all the core technologies featured in its counterparts, including inverter technology and a high-efficiency compressor, ensuring comfort without excessive energy usage. This model also includes a user-friendly remote control and programmable timer functions, allowing for customized comfort settings and enhanced convenience.

In summary, the Toshiba RAV-SM series represents the pinnacle of HVAC innovation, blending energy efficiency with advanced technology. Each model caters to specific needs, from the compact RAV-SM562UT-E to the robust RAV-SM1402UT-E, ensuring that every commercial and residential space can achieve optimal climate control.

Toshiba RAV-SM1102UT-E, RAV-SM1402UT-E, RAV-SM802UT-E, RAV-SM562UT-E Materials for Brazing, Flux

Models: RAV-SM562UT-E RAV-SM802UT-E RAV-SM1402UT-E RAV-SM1102UT-E