Toshiba RAV-SM304ATJP-E, Руководство по обслуживанию

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FILE NO. SVM-1
4059
6-6-5. Final Installation Checks
Existing pipe: NO
∗
Use a new pipes.
Clean the pipes or use the new pipes.
Is it possible to operate the existing air conditioner?
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.)
∗
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
s 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.
Connect the indoor/outdoor units to the existing pipe.
s
Use a flare nut attached to the main unit for the
indoor/outdoor units.
(Do not use the flare nut of the existing pipe.)
s
Re-machine the flare machining size to size for R410A.
Nitrogen gas pressure 0.5 Mpa
(If there is discharge of remains,
it is judged that there is a large quantity of remains.)
If you are in trouble of
pipe cleaning, please contact us.
Is there no scratch or dent on the existing pipes?
YES
YES
NO
NO
SVM-13072.indb 37 SVM-13072.indb 37 11/01/13 1:53 PM 11/01/13 1:53 PM
Trial run
∗
(Airtight test), Vacuum dry, Refrigerant charge,
Gas leak check