Toshiba Carrier RBM-Y0383FUL Manuel D'installation page 8

Multi indoor unit connection
For selection of the branching pipe, refer
to the Installation Manual attached to the
outdoor unit.
Material Seamless phosphorus deoxidized copper pipe
Flow Selector unit RBM-
Total capacity codes of
—
indoor units (kBtu/h)
Indoor unit side pipe Gas pipe
size (in)
Liquid pipe
Outdoor unit side pipe Suction gas pipe
size (in)
Discharge gas pipe
Liquid pipe
Connectable indoor
—
units
<RBM-Y0383FUL (Use pipes attached with the Flow Selector unit.)>
Pipe procured locally
Discharge gas pipe
Liquid pipe
Suction gas pipe
<RBM-Y0383FUL, RBM-Y0613FUL>
Pipe procured locally
Discharge gas pipe
Liquid pipe
Suction gas pipe
<RBM-Y0963FUL (Use pipes attached with the Flow Selector unit.)>
Pipe procured locally
Discharge gas
pipe
Liquid pipe
Suction gas
pipe
EN-13
Outdoor unit Flow Selector unit
Indoor unit
Y0383FUL Y0613FUL Y0963FUL
Below 38 38 to below 61 61 to 96 or less
Ø5/8" Ø5/8" Ø7/8"
Ø3/8" Ø3/8" Ø1/2"
Ø5/8" Ø5/8" Ø7/8"
Ø1/2" Ø1/2" Ø3/4"
Ø3/8" Ø3/8" Ø1/2"
5 8 8
Attached pipe
Pipe procured locally
Gas pipe
Liquid pipe
Attached pipe
Pipe procured locally
Gas pipe
Liquid pipe
Pipe procured locally
- 7 -
CAUTION
* Be sure to wrap the pipe with wet cloth when applying brazing.
Remove the cap.
• For a brazing work of the refrigerant pipes, be sure to use nitrogen gas in order to prevent oxidation of the inside of
the pipes; otherwise clogging of the refrigerating cycle due to oxidized scale may occur.
* Remove all flux after brazing.
Leak check test, evacuation and other procedure
For leak check test, evacuation, addition of refrigerant, and gas leak check, refer to the Installation Manual
attached to the outdoor unit.
REQUIREMENT
• Be sure to use the tool such as charge hose exclusive to R410A.
• Do not supply power to the indoor unit until the leak check test and evacuation are completed. (If the indoor unit is
powered on, the pulse motor valve is fully closed, which extends the time for vacuuming.)
Open fully valves of the outdoor unit
Gas leak check
Check with a leak detector or soap water whether gas leaks or not, from the pipe connecting section.
REQUIREMENT
Use a leak detector manufactured exclusively for HFC refrigerant (R410A, R134a, etc.).
Gas pipe
Liquid pipe
Wet cloth
Apply brazing to full circumference.
Insert the connecting pipe.
EN-14