6-6-5. Final Installation Checks

Is there no scratch or dent on the existing pipes?

Is it possible to operate the existing air conditioner?

YES

*After the existing air conditioner operated in cooling mode for approx. 30 minutes or longer*, recover the refrigerant.

*For cooling the pipes and recovering of oil

• Refrigerant recovery: Pump down method

*Remove the existing air conditioner from the piping and carry out flashing (nitrogen pressure 0.5 Mpa) to remove the remains inside of the pipe.

Note] In case of twin, also be sure to flash the branching pipe.

Was not largely discolored oil or

a large quantity of remains discharged? (When the oil deteriorates, the color of the oil changes to muddy and black color.)

YES

„Connect the indoor/outdoor units to the existing pipe.

•Use a flare nut attached to the main unit for the indoor/outdoor units.

(Do not use the flare nut of the existing pipe.)

•Re-machine the flare machining size to size for R410A.

„In case that the gas pipe Ø19 mm is used for the outdoor unit of SM803 (3 HP) or higher:

(Gas pipe size of our R410A model 3 to 5 HP is Ø15.9 mm) → Turn the existing pipe switch on the cycle control

P.C board of the outdoor unit to ON side.

At shipment from factory OFF → ON for existing pipe (Refer to the table below.) (Be sure to set the contents in the table below in order to restrict the refrigerating cycle pressure of the equipment in the pipe standard.)

Existing pipe SW

 

Switch

 

 

3 HP

Bit 3 of SW801 → ON

 

 

4, 5 HP

Bit 3 of SW802 → ON

*(Airtight test), Vacuum dry, Refrigerant charge, Gas leak check

Trial run

Existing pipe: NO * Use a new pipes.

NO

Nitrogen gas pressure 0.5 Mpa

(If there is discharge of remains,

it is judged that there is a large quantity of remains.)

NO

Clean the pipes or use the new pipes.

If you are in trouble of

pipe cleaning, please contact us.

Piping necessary to change the flare nut/ machining size due to pipe compression.

1)

Flare nut width: H

 

 

 

(mm)

 

 

 

 

 

 

 

 

 

 

 

Copper pipe

Ø6.4

 

Ø9.5

Ø12.7

Ø15.9

Ø19.0

 

 

 

 

 

 

 

 

 

 

 

outer dia.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For R410A

17

 

22

26

29

36

 

 

 

 

 

 

H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For R22

Same as above

24

27

Same

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

as above

 

 

 

 

 

 

 

 

 

 

 

 

2)

Flare machining size: A

 

 

 

(mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copper pipe

Ø6.4

 

Ø9.5

Ø12.7

Ø15.9

Ø19.0

 

 

 

 

 

 

A

 

 

 

 

outer dia.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For R410A

9.1

 

13.2

16.6

19.7

24.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For R22

9.0

 

13.0

16.2

19.4

23.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Becomes large a little for R410A

Do not apply the refrigerator oil to the flare surface.

– 41 –

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Image 41
Toshiba RAV-SM804UT-E, RAV-SM1404UT-E, RAV-SM1104UT-E, RAV-SP1104AT-E Final Installation Checks, Existing pipe SW Switch
Page 40 Page 42

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.

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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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