Installation Inspection

Step 4.1 Performing the gas leak tests

1Before 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.)

Tightening torque for body cap (Refer to the table)

Charging core

Spindle

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

Tightening torque

(mm)

Body cap (N•m)

Charging port cap (N•m)

 

ø 6.35

20 to 25

 

 

 

 

ø 9.52

20 to 25

 

 

 

 

ø 12.70

25 to 30

10 to 12

 

 

 

ø 15.88

30 to 35

 

 

 

 

Over ø 19.05

35 to 40

 

 

 

 

( 1 N•m = 10 kgf•cm )

2Insert inert gas into the pipes connected to indoor and outdoor units.

3Test leakage on the connection parts of the indoor and outdoor units with soap lather or liquid.

Test parts for the indoor unit

Test parts for the indoor unit

Step 4.2 Running the Smart Install mode

If using a multi system, this function is not supported.

1Make sure that the air conditioner is in the standby status.

2Hold down the (Power), (Mode) and

(SET / Temperature type (℃↔℉)) buttons on the remote control simultaneously for 4 seconds.

3Wait until Smart Install mode succeeds or fails. It takes approximately 7 to 13 minutes.

• While Smart Install mode is proceeding:

Type

Display

LED Display

 

 

 

 

 

 

 

LED1

 

 

 

 

 

 

 

 

LED2

 

 

 

 

 

 

 

 

LED3

 

Indoor

 

 

 

 

unit

The progress is

The LEDs on the

indicator

indoor unit display

 

displayed as a

blink in sequence,

 

number between

 

then all of them

 

0 and 99 on

 

blink simultaneously.

 

the indoor unit

 

These operations

 

display.

 

repeat.

 

 

 

 

 

 

 

•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.

English 21

Installation