37
7-4. Auto Address Setting
Basic wiring diagram: Example (1)
(
S
004)
1-1
1-2 1-
3
1-
8
•
If link wirin
g
i
s
not u
s
ed
(The inter-unit control wire
s
are not connected to multiple refri
g
erant
s
y
s
tem
s
.)
Indoor
u
nit
a
ddre
ss
e
s
c
a
n
b
e
s
et witho
u
t oper
a
ting the compre
ss
or
s
.
No. 1
u
nit
s
etting
s
Unit
No. 1
O
u
tdoor Unit
Indoor Unit
Remote Controller
Inter-
u
nit control wiring
Remote control
comm
u
n
u
c
a
tion wiring
(
S
004)
8
S
y
s
tem
a
ddre
ss
(
s
y
s
tem 1
s
etting)
No. of indoor
u
nit
s
(
8
u
nit
s
s
etting)
ON
1
2
ON
OFF
(
S
00
3
) (
S
002)
1
(1) Automatic Address Setting from the Outdoor Unit
1. On the outdoor unit control PCB, check that the system address rotary switch (S002) is set to “1” and that the
DIP switch (S003) is set to “0.”
(These are the settings at the time of factory shipment.)
2. To set the number of indoor units that are connected to the outdoor unit to 8 on the outdoor unit control PCB, set
the No. of indoor units rotary switch (S004) to “8.”
3. Turn ON the power to the indoor and outdoor units.
4. On the outdoor unit control PCB, short-circuit the automatic address pin (CN51) for 1 second or longer, then
release it.
↓
(Communication for automatic address setting begins.)
↓
(Automatic address setting is completed when LEDs 1 and 2 on the outdoor unit control PCB turn OFF.)
↓
5. Operation from the remote controllers is now possible.
* To perform automatic address setting from the remote controller, perform steps 1 to 3, then use the remote controller and
complete automatic address setting.
Refer to “Automatic Address Setting from the Remote Controller.”
ON
ON
OFF
1
2
* To cancel, again short-circuit the automatic address pin (CN51) for 1 second or longer, then pull it out.
The LED that indicates that automatic address setting is in progress turns OFF and the process is
stopped.
Fig. 7-5
Summary of Contents for U-36LE1U6
Page 35: ...35 7 3 Outdoor Unit PCB Setting CN51 CN50 D043 LED2 D042 LED1 S003 CN33 S002 S004 Fig 7 4...
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