6 ELECTRICAL WORK

For the air conditioner that has no power cable, connect a power cable as mentioned below.

Model

RAV-

SM1100AT-E

SM1400AT-E

 

 

 

 

Power supply

 

220 – 240 V

 

Single phase 50 Hz

 

 

 

 

 

Maximum running current

22.0 A

 

22.8 A

 

 

 

 

Installation fuse rating

25 A (D type

)

 

 

 

Power cable

 

H07 RN-F or 245 IEC 66

 

(2.5 mm2 or more)

 

 

 

 

 

CAUTION

Wrong wiring may cause a burn-out to some electrical parts.

Be sure to use the cord clamps attached to the product.

Do not damage or scratch the conductive core and inner insulator of power and inter-connecting cables when peeling them.

Be sure to comply with local regulations of the cable from outdoor unit to indoor unit.

(wire size and cabling method etc.)

Use the power and Inter-connecting cables with specified thickness, specified type and protective devices required.

How to wire

1.Connect the connecting cable to the terminal as identified with their respective numbers on the terminal block of indoor and outdoor unit.

H07 RN-F or 245 IEC 66 (1.0 mm2 or more)

2.When connecting the connecting cable to the outdoor unit terminal, prevent water coming in the outdoor unit.

3.Insulate the unsheathed cords (conductors) with electrical insulation tape. Process them so that they do not touch any electrical or metal parts.

4.For inter connecting cable, do not use a wire jointed to another on the way.

Use wires long enough to cover the entire length.

Power supply

To Indoor unit

terminal block

terminal block

L N

1

2

3

 

 

 

 

Earth screw

 

 

Power cable

Connecting cable

Stripping length power cord and connecting cable

L N

10

10

1 2 3

10

 

 

10

50

40

40

30

Earth line

Earth line

(mm)

 

 

Power cable

Connecting

 

 

cable

 

CAUTION

The installation fuse (25A D type ) must be used for the power supply line of this air conditioner.

Incorrect/incomplete wiring might cause an electrical fire or smoke.

Prepare the exclusive power supply for the air conditioner.

This product can be connected to the mains. Connection to the fixed wiring :

A switch which disconnects all poles and has a contact separation of at least 3 mm must be incorporated in the fixed wiring.

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Toshiba R410A service manual SM1100AT-E SM1400AT-E Power supply 220 240, Single phase 50 Hz, Mm2 or more

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.