Changes in the product and components

Installation/Servicing Tools

In the case of an air conditioner using R410A, in order to prevent any other refrigerant from being charged acciden- tally, service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch)

•In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite side of flare nuts has been changed. (for copper pipes with nominal dimensions 1/2 and 5/8)

New tools for R410A

New tools for R410A	Applicable to R22 model		Changes
	⋅		As pressure is high, it is impossible to measure by means of conventional
Gauge manifold	⋅		gauge. In order to prevent any other refrigerant from being charged, each
			port diameter is changed.

	⋅		In order to increase pressure resisting strength, hose materials and port
Charge hose	⋅		size are changed (to 1/2 UNF 20 threads per inch).
			When purchasing a charge hose, be sure to check the port size.

Electronic balance	¡		As pressure is high and gasification speed is fast, it is difficult to read the
for refrigerant charging	¡		indicated value by means of charging cylinder, as air bubbles occur.
for refrigerant charging

Torque wrench	⋅		The sizes of opposite sides of flare nuts have been increased. Inciden-
(nominal diam. 1/2, 5/8)			tally, a common wrench is used for nominal diameters 1/4 and 3/8.

Flare tool	¡		By increasing the clamp bar’s receiving hole, strength of spring in the tool
(clutch type)	¡		has been improved.
(clutch type)			has been improved.

Gauge for projection adjustment	—	—	Used when flare is made with using conventional flare tool.

			Connected to the conventional vacuum pump. It is necessary to use an
			adapter to prevent vacuum pump oil from flowing back to the charge hose.
Vacuum pump adapter	¡		The charge hose connecting part has two ports - one for conventional
Vacuum pump adapter	¡		refrigerant (7/16 UNF 20 threads per inch) and the other for R410A. If the

			vacuum pump oil (mineral) mixes with R410A, sludge may occur and
			damage the equipment.
Gas leakage detector	⋅	X	Exclusive for HFC refrigerant.

•Incidentally, the “refrigerant cylinder” comes with the refrigerant designation (R410A) and protector coating in the U.S.’s ARI specified rose color (ARI color code: PMS 507).

•Also, the “charge port and packing for refrigerant cylinder” require 1/2 UNF 20 threads per inch corresponding to the charge hose’s port size.

R410A specifications

Toshiba R410A is a highly regarded refrigerant known for its efficiency and environmental benefits. This hydrofluorocarbon (HFC) mixture is widely used in various air conditioning and refrigeration applications due to its excellent thermodynamic properties. One of the standout features of R410A is its superior energy efficiency, which contributes to lower energy consumption and reduced CO2 emissions in HVAC systems.

One significant advantage of R410A over older refrigerants, such as R22, is its lower ozone depletion potential (ODP). R410A has an ODP of zero, making it a more environmentally friendly choice. This characteristic aligns with global initiatives aimed at protecting the ozone layer and promoting sustainable practices. The shift to R410A has been supported by government regulations in many countries, phasing out older, more harmful refrigerants.

Toshiba has incorporated advanced technologies in its R410A compatible products, enhancing performance and reliability. Among these technologies is the inverter technology that allows the compressor to operate at variable speeds. This functionality leads to improved temperature regulation, reduced noise levels, and further energy savings. Inverter systems provide precise control over the cooling and heating processes, allowing for a comfortable indoor environment while minimizing wastage of energy.

R410A also exhibits excellent heat transfer properties, which boosts cooling capacity. This feature makes it suitable for large-scale HVAC systems, including commercial and industrial applications. Its high-pressure characteristics enable the design of more compact and efficient components, allowing for smaller units and easier installation.

Furthermore, Toshiba's dedication to technological innovation is visible in its commitment to research and development. The company continuously strives to optimize systems that utilize R410A, focusing on reliability and longevity. This includes improved compressor designs, enhanced heat exchangers, and the integration of smart controls that adapt to the varying load conditions in real-time.

In terms of safety, R410A is classified as non-toxic and non-flammable under normal conditions, making it a safe choice for use in residential and commercial settings. However, it is important to note that R410A operates at higher pressures compared to traditional refrigerants, necessitating proper equipment design and handling procedures.

In conclusion, Toshiba R410A stands out in the market for its energy efficiency, environmental safety, and technological advancements. It is an ideal refrigerant for modern HVAC applications, contributing to both comfort and sustainability. As the industry continues to evolve, R410A remains a pivotal element in the quest for responsible and efficient refrigeration solutions.

Installation/Servicing Tools