6-3. Tools

6-3-1. Required Tools

Refer to the “4. Tools” (Page 8)

6-4. Recharging of Refrigerant

When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps.

Recover the refrigerant, and check no refrigerant remains in the equipment.

Connect the charge hose to packed valve service port at the outdoor unit’s gas side.

Connect the charge hose of the vacuum pump adapter.

Open fully both packed valves at liquid and gas sides.

Place the handle of the gauge manifold Low in the fully opened position, and turn on the vacuum pump’s power switch. Then, evacuating the refrigerant in the cycle.

When the compound gauge’s pointer has indicated –0.1 Mpa (–76 cmHg), place the handle Low in the fully closed position, and turn off the vacuum pump’s power switch.

Keep the status as it is for 1 to 2 minutes, and ensure that the compound gauge’s pointer does not return.

Set the refrigerant cylinder to the electronic balance, connect the connecting hose to the cylinder and the connecting port of the electronic balance, and charge liquid refrigerant.

(For refrigerant charging, see the figure below.)

1)Never charge refrigerant exceeding the specified amount.

2)If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.

3)Do not carry out additional charging.

When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high pressure, and may cause a rupture or personal injury.

(INDOOR unit)

(Liquid side)

(OUTDOOR unit)

Opened

(Gas side)

Refrigerant cylinder (With siphon pipe)

Check valve

Closed

Open/Close valve

for charging

Service port

Electronic balance for refrigerant charging

Fig. 6-4-1 Configuration of refrigerant charging

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Toshiba RAV-SM1104UT-E, RAV-SM1404UT-E, RAV-SP1104AT-E, RAV-SP1404AT-E Required Tools, Configuration of refrigerant charging
Page 36 Page 38

RAV-SP1104ATZG-E, RAV-SP1104ATZ-E, RAV-SP1404ATZ-E, RAV-SM804UT-E, RAV-SP1404AT-E specifications

Toshiba has long been a notable player in the air conditioning market, with a range of products designed to deliver effective cooling and heating solutions. Among its recent offerings are the RAV-SP1104AT-E, RAV-SM1404UT-E, RAV-SM1104UT-E, RAV-SP1104ATZ-E, and RAV-SP1404ATZ-E models. Each of these models is engineered for efficiency, performance, and user convenience.

The RAV-SP1104AT-E is designed for residential and commercial spaces alike, featuring advanced inverter technology. This model operates efficiently by adjusting compressor speed according to the required cooling load, resulting in reduced energy consumption and optimal performance. With a cooling capacity of 11 kW, it is suitable for medium to large spaces.

The RAV-SM1404UT-E model builds on this efficiency with enhanced features aimed at maximizing comfort. It includes a built-in Wi-Fi capability, allowing users to control the system remotely through a mobile app. This model boasts a high-energy efficiency rating, which translates into lower operating costs and a smaller environmental footprint.

Similarly, the RAV-SM1104UT-E emphasizes versatility and adaptability, adept at handling various climatic conditions. In addition to its robust cooling performance, it supports heating capabilities, making it an excellent choice for year-round use. The unit's quiet operation ensures comfort without the nuisance of disruptive noise, making it ideal for both residential and commercial settings.

The RAV-SP1104ATZ-E and RAV-SP1404ATZ-E models represent the pinnacle of Toshiba's innovation in multi-split systems. Both models utilize advanced refrigerant technology, ensuring rapid cooling and heating while minimizing energy loss. The RAV-SP1104ATZ-E offers a balanced performance with a focus on high efficiency, while the RAV-SP1404ATZ-E provides greater capacity, ideal for larger establishments requiring substantial climate control.

All these units feature Toshiba's cutting-edge technologies, including advanced filtration systems that improve indoor air quality by capturing dust, allergens, and other particulates. The robust design of these models ensures durability and longevity, making them a worthwhile investment for any property owner.

In summary, Toshiba’s RAV-SP1104AT-E, RAV-SM1404UT-E, RAV-SM1104UT-E, RAV-SP1104ATZ-E, and RAV-SP1404ATZ-E models reflect the brand's commitment to innovation and energy efficiency. These air conditioning solutions cater to a variety of needs while ensuring comfort, reduced environmental impact, and user-friendly operation.
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