Toshiba RAV-SP804ATP-E Bedienungsanleitung Seite 51

Are there scratches or dents on the existing pipes?
NO
Is it possible to operate the existing air conditioner?
YES
• After the existing air conditioner is operated in cooling
mode for approx. 30 minutes or longer,* recover the
refrigerant.
• For cleaning the pipes and recovering oil
• Refrigerant recovery: Pump down method
• Remove the existing air conditioner from the piping and
carry out flushing (nitrogen pressure 0.5 MPa) to remove
any remains inside of the pipe.
Note]
In case of twin pipes, also be sure to flush the
branching pipe.
Was largely discolored oil or a large quantity
of remains discharged? (When the oil
deteriorates, the color of the oil changes to a
muddy or black color.)
NO
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 a gas pipe 19 mm or bigger is used for the
Ø
outdoor unit of SP80 (3 HP): (Our R410A model 3 to 5 HP
gas pipe size is Ø 15.9 mm)
Turn the existing pipe switch on the cycle control PC
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 SW802
• (Airtight test), Vacuum dry, Refrigerant charge, Gas leak
check
Trial run
EN-99
Downloaded from www.Manualslib.com
YES
Existing pipes: Cannot be used.
• Use new pipes.
NO
Nitrogen gas pressure 0.5 MPa
(If there is discharge of remains, it is judged that a
large quantity of remains are present.)
YES
Clean the pipes or use new pipes.
Piping necessary to change the flare nut/
machining size due to pipe compression
1) Flare nut width: H
Copper pipe
outer Ø6.4 Ø9.5 Ø12.7
diameter
H For R410A 17 22
For R22 Same as above
2) Flare machining size: A
Copper pipe
A
outer Ø6.4 Ø9.5 Ø12.7
diameter
ON
For R410A 9.1 13.2 16.6
9.0 13.0 16.2
For R22
Becomes a little larger for R410A
Do not apply refrigerator oil to the flare surface.
manuals search engine
15
SPECIFICATIONS
Model
RAV-SP804ATP-E
RAV-SP804ATJP-E
* Under 70 dBA
(mm)
Ø15.9 Ø19.0
26 29 36
Same as
24 27
above
(mm)
Ø15.9 Ø19.0
19.7 24.0
19.4 23.3
- 50 -
Sound power level (dB)
Cooling Heating
* *
* *
Weight (kg)
66
66
EN-100