7-4-4. Check after Address Setup when Central Control System Is
Connected
When the central control system is connected, check that the following setup has finished after address setup.
NOTE
The figure above does not show all the electric wires.
For details, refer to the installation manuals for the outdoor unit, indoor unit, remote controller, or optional devices.
k
c
e
h
C
s
m
e
t
i
k
c
e
h
c
n
i
a
M
Relay
connector
(1) Is the relay connector of the
outdoor
unit connected after address setup?
Terminator
resistor
(
2
)Is the
terminator resistor
(SW30-bit 2) of the
outdoor
unit with the smallest line address
number
in the central control turned on?
(
3
)Is the
terminator resistor
(SW30-bit 2) of the
outdoor
unit, except for the line with the
smallest central control line address, turned off?
Line address
(
4
) Are addresses in the line address (SW13, SW14) not duplicated in each refrigerant line?
U1
U2
U1
U2
U1
U2
U1
U2
U1
U2
U3
U4
A B
A B
A B
A B
(
4
)
(
3
)
(
4
)
(1)
(
2
)
Other refrigerant line
U1
U2
U3
U4
U3
U4
U1
U2
To other refrigerant line
Line address = 1
Line address = 2
Central remote
controller
Outdoor unit
Indoor unit
Remote
controller
Remote
controller
Remote
controller
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