Drain-up, Connection of the drain hose

Drain-up

If down-slope cannot be set on a drain pipe, drain-up is possible.

•Set the height of drain pipe 550mm or less from the bottom face of the indoor unit.

•Pull out the drain pipe from connecting port of the drain pipe of the indoor unit by 100mm or shorter, and stand up it vertically.

•After standing up it vertically, arrange immediately so that it is set with down-slope.

100mm or shorter

Indoor unit

Standing-up: 550mm or less

Connection of the drain hose	As long as possible (Approx. 100mm)
• Insert the drain hose completely into	As long as possible (Approx. 100mm)
the connecting port of the drain pan.	VP 30		VP 30		VP 30
the connecting port of the drain pan.	VP 30		VP 30		VP 30
• Apply thermal insulation surely to the
• Apply thermal insulation surely to the
drain hose with socket thermal insulation seal.
		VP 30 or more		Downward grading
				1/100 or more

Extended ventilating pipe

Check of water drain

After drain pipe work, check that water is drained and there is no water leak from pipe connection portion. In this time, also check there is no trouble of motor sound of the drain pump. Be sure also to perform this check when installing the unit in heating time.

After electric piping work

•Before installing a panel, infuse water as shown in the following figure. By operating the unit in COOL mode, check that water is drained from the drain pipe and then check there is no water leak from the drain pipe.

Before electric piping work

•Pull out the float switch connector (3P: Red) from

connector (CN34: Red) on P.C. board of the electric parts box. (In this time, be sure to check the power has been turned off.)

•Connect 200V single-phase to R and S of the power supply terminal block. (Never apply 200V to

A , B , U1 , and U2 of the terminal block, otherwise it causes a trouble of P.C. board.

•Infuse water followed to the figure below. (Water amount: 1500cc to 2000cc)

•The drain pump automatically operates by power-on. Check that water is drained from the drain pipe and then check there is no water leak from the drain pipe.

•After checking water drain and water leak, turn off the power, connect the float switch connector to the original position (CN34) of P.C. board, and then return the electric parts box to the original position.

Insert the end of hose	Service plate
up to the near of suction
port of drain pump.

200–240V ~ single-phase

R S

White

Black Red

Black

Pull out CN34 connector from P.C. board.

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.