Special Installation Methods - Fujitsu R410A Installation Instruction

9
SPECIAL INSTALLATION
METHODS
CAUTION
1 When setting the rotary switch and DIP switches, do
not touch any other parts on the circuit board directly
with your bare hands.
2 Be sure to turn off the main power.
1. GROUP CONTROL SYSTEM
A number of indoor units can be operated at the same time using a single
remote controller.
(1) Wiring method (indoor unit to remote controller)
0 1 2
Indoor unit No. Indoor unit No. Indoor unit No. Indoor unit No.
1 2 3 1 2 3 1 2 3
Remote
controller
wire 1 2 3
Remote
controller
(2) Rotary switch setting (indoor unit)
Set the unit number of each indoor unit using the rotary switch on the
indoor unit circuit board.
The rotary switch is normally set to 0.
(3) DIP switch setting (remote controller)
Change DIP switch 1 No. 3 on the remote controller from OFF to ON.
Indoor unit Remote controller
OFF
1
2
3
4
5
6
SW3
ON
Rotary Switch DIP Switch 1
2. DUAL REMOTE CONTROLLERS (OPTIONAL)
Two separate remote controllers can be used to operate the indoor units.
(1) Wiring method (indoor unit to remote controller)
Indoor unit
1 2 3
Remote
controller
wire
1 2 3 1 2 3
Remote
Master Slave
controller
unit unit
(2) DIP switch setting (remote controller)
Set the remote controller DIP switch 1 No. 1 and 2 according to the
following table.
Number of Master unit
Remote controller
remote
DIP-SW 1 No. 1 DIP-SW 1 No. 2
controllers
OFF
1 (Normal) ON OFF
2 (Dual) OFF OFF
Number of
Slave unit
remote
DIP-SW 1 No. 1 DIP-SW 1 No. 2
controllers
DIP Switch 1
1 (Normal) – –
2 (Dual) ON ON
3. AUTO RESTART
• When the air conditioner power was temporarily turned off by a power
failure etc., it restarts automatically after the power recovers.
(Operated by setting before the power failure)
The auto restart function can be
canceled.
(1) DIP switch setting (indoor unit)
Change the DIP switch (SW1-1)
on the indoor unit circuit board
from ON to OFF. The auto restart
function will be canceled.
[DIP-SWITCH SETTING]
● Indoor unit
3
SW state
1 2 3
NO.
OFF
1 Invalidity
DIP-Switch 1 2 —
3 —
★
1 —
★
DIP-Switch 4
2 —
★
3 —
● Remote controller
ON
SW state
No.
OFF
★
1
★
2
★ One unit
DIP- 3 Multiple units
switch 1 ★ Heat & cool model
4 Cooling only model
★ Validity
5 Invalidity
★ Invalidity
6 Validity
★ Validity
1 Invalidity
★ Validity
2 Invalidity
★ Invalidity
DIP- 3 Validity
switch 2 ★ Validity
4 Invalidity
★ Fixed at OFF
5
★ Fixed at OFF
6
10
OPENING THE DUCT
CONNECTION HOLE
Distribution duct
ON
1
2
3
4
5
6
1 When performing hole opening work, be careful not to
2 When connecting the distribution duct, to make the air
Indoor unit
OFF
SW1 SW4
1. DIMENSION
DIP Switch
Screw position and connection hole which are fresh air duct and distribu-
tion duct.
Detail
ON
Validity ★ Auto restart setting
★ Temperature correction
—
★ setting
—
— Remote controller setting
2. DISTRIBUTION DUCT AND FRESH AIR DUCT
—
HOLE PROCESSING
Air flow setting
—
Use the distribution duct hole and fresh air duct hole by removing the
insulation material as shown below.
Detail
ON
Dual remote controller setting
Group control setting
Model setting
AUTO changeover setting
Memory Backup setting
THERMO SENSOR button setting
ENERGY SAVE button setting
• Cut off the part (Cabinet) indicated by the arrow in the figure with
Horizontal airflow direction and swing button setting
nippers, needle nose pliers, etc.
Vertical airflow direction and swing button setting
Cannot be used.
Cannot be used.
(★: Factory setting)
Fresh air • Open the holes and cut the insulation with a knife.
* Be careful not to damage the internal parts.
* Be careful not to cut yourself on the cutout in the metal plate.
* Please remove the insulation (inner box) left over after cutting.
• Connect the distribution duct.
Distribution duct * When mounting the duct, block the gap so that there is no cold air leakage.
* Insulate the duct and cut connection.
The air conditioner cannot take in fresh air by itself. When
connecting a fresh air duct, always use a duct fan.
CAUTION
damage the drain pan.
flow easily, block the outlet port with the blower cover
insulation as shown by the hatched lines in the figure.
For the blocking direction, refer to blower cover insu-
lation figure.
P. D 120 P. D 88
160 mm (6-5/16") 334.2 mm (13-5/32")
12-ø3.3 self tapping screw holes (for 4 mm)
Cut
Cabinet
Cut
Knife
Cabinet
Insulation
(Inner box)
CAUTION