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Installation Inspection
Step 4.1 Performing the gas leak tests
1 Before inspecting the leakage, use a torque
wrench to close the cap for the stop valve. (Comply
with a tightening torque for each size of the
diameter, and tighten the cap firmly to prevent
any leakage.)
Charging core
R-22: Thread of the screw - 7/16-2OUNF
R-410A: Thread of the screw -1/2-2OUNF
Tightening torque for charging port cap (Refer to the table)
Outer diameter
Body cap
(mm)
(N•m)
ø 6.35
20 to 25
ø 9.52
20 to 25
ø 12.70
25 to 30
ø 15.88
30 to 35
Over ø 19.05
35 to 40
2 Insert inert gas into the pipes connected to indoor
and outdoor units.
3 Test leakage on the connection parts of the indoor
and outdoor units with soap lather or liquid.
Tightening torque for body cap
(Refer to the table)
Spindle
Tightening torque
Charging port cap (N•m)
10 to 12
( 1 N•m = 10 kgf•cm )
Test parts for the
indoor unit
Step 4.2 Running the Smart Install
mode
1 Make sure that the air conditioner is in the standby
status.
2 Hold down the
(Power),
(SET) buttons on the remote control
simultaneously for 4 seconds.
3 Wait until Smart Install mode succeeds or fails. It
takes approximately 7 to 13 minutes.
• While Smart Install mode is proceeding:
Type
Display
Indoor
unit
indicator
The progress is
displayed as a
number between
0 and 99 on the
indoor unit display.
• When Smart Install mode succeeds: Smart
Install mode ends with ringing sound, and the
air conditioner is in standby status.
• When Smart Install mode fails: An error
message is displayed on the indoor unit display,
and Smart Install mode ends.
NOTE
• Smart Install mode can be operated only with the
supplied remote control.
• During the Smart install mode procedure, remote
control cannot be operated.
Test parts for the
indoor unit
Test parts for the
indoor unit
(Mode), and
LED Display
LED3
LED2
LED1
The LEDs on the
indoor unit display
blink in sequence,
then all of them blink
simultaneously. These
operations repeat.
English
41
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