Pipe Installation-2; Installing Insulation; Filling With Putty; How To Operate Field Setting Buttons - Fujitsu AOYG72LRLA Installation Manual

7. PIPE INSTALLATION-2

7.1. Installing insulation

• Install insulation material after conducting the "5.4. Sealing test".
• To prevent condensation and water droplets, install insulation material on the refrigerant
pipe.
• Refer to the table to determine the thickness of the insulation material.
• If the outdoor unit is installed at a level that is higher than the indoor unit, the water that
has condensed in the 3-way valve of the outdoor unit could travel to the indoor unit.
Therefore, use putty in the space between the pipe and the insulation to prevent the
entry of water.
Table. Selection of insulation
(Use an insulation material with equal heat transmission rate or below 0.040
W/(m·k))
Insulation material minimum thickness (mm)
Relative humidity ≤ 70%
Pipe diameter
6.35 8
(mm)
9.52 9
12.70 10
15.88 10
19.05 10
22.22 11
25.40 11
* When an ambient temperature and relative humidity exceed 32 °C, please strengthen
heat insulation of refrigerant pipe.

7.2. Filling with putty

WARNING
Fill the piping holes and wiring holes with putty
(locally purchased) to avoid any gap (Fig. A). If
small animals such as insects enter the external
unit, a short circuit may be caused near electrical
components in the service panel.
If the outdoor unit is installed at a level that is higher
than the indoor unit, the water that has condensed
in the 3-way valve of the outdoor unit could travel
to the indoor unit. Therefore, use putty in the space
between the pipe and the insulation to prevent the
entry of water to the indoor units.

8. HOW TO OPERATE FIELD SETTING BUTTONS

8.1. Display and buttons position

Never touch electrical components such as the terminal blocks except the button on
the display board. It may cause a serious accident such as electric shock.
Once refrigerant charging is completed, be sure to open the valve prior to performing
the local settings. Otherwise, the compressor may fail.
Discharge any static electricity from your body before touching the push buttons.
Never touch any terminal or pattern of any parts on the control board.
• Remove the front panel of the outdoor unit to access the print circuit board of the
display unit.
• The positions of the buttons on the outdoor unit control board are shown in the fi gure
below.
• Various settings can be adjusted by changing Push buttons on the board of the outdoor
unit.
≤ 75% ≤ 80% ≤ 85%
10 13
11 14
12 15
12 16
13 16
13 17
13 17
Fig. A
Putty
Insulation
WARNING
CAUTION
17
18
19
20
21
22
22
• The printed characters for the LED display are shown below.
LED display part
/
SW107 SW108 SW109 SW112 SW110

8.2. Description of display and button

Display lamp
(1) POWER / MODE
(2) ERROR
(3) PUMP DOWN
(L1)
(4) LOW NOISE
(L2, L3)
(5) PEAK CUT
(L4, L5, L6)
Button
SW107 MODE/EXIT
SW108 SELECT
SW109 ENTER
SW112 EXIT
SW110 PUMP DOWN

9. FIELD SETTING

Discharge the static electricity from your body before setting up the switches.
Never touch the terminals or the patterns on the parts that are mounted on the board.
LED display and button
Function or operation method
Lights on while power on. Local setting in out-
Green
door unit or error code is displayed with blink.
Blinks during abnormal air-conditioner
Red
operation.
Lights on during pump down operation.
Orange
Lights on during "Low noise" function when
local setting is activated. (Lighting pattern of L2
Orange
and L3 indicates low noise level)
*See page 13.
Lights on during "Peak cut" function when local
setting is activated. (Lighting pattern of L4, L5
Orange
and L6 indicates peak cut level)
*See page 13.
Function or operation method
To switch between "Local setting" and "Error code
display".
To switch between the individual "Local settings"
and the "Error code displays".
To fi x the individual "Local settings" and the "Error
code displays".
To return to "Operation status displays."
To start the pump down operation.
CAUTION
Button part
En-12