McQuay MDS080B, Руководство по установке

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©2005 McQuay International
20
Indoor unit 1
To network or central
control (optional)
Communication cable
Screen
layer
D
et
ai
l f
or
T
er
m
in
al
A
p
c
Outdoor unit
Control box
Main PCB
Connection
port
B
p
c
A
p
c
A
i
n
B
i
n
B
p
c
B
in
A
in
Control box
A B
PCB
Control box
Indoor unit 2
B
Communication cable
Control box
A
PCB
Communication cable
JP
1
of last unit on
main bus should be on
Indoor unit i
A B
PCB
JP1
A
B
A
B
A
B
Connection port
com1
c
o
m
2
c
o
m
2
com1
Connection port
Connection port
c
o
m
2
com1
Master unit
Outdoor unit
To network or central
control (optional)
A
in
B
in
B
p
c
A
p
c
Main PCB
Connection
port
Screen
layer
Communication cable
Connection
port
Slave unit
Main PCB
A
in
B
p
c
A
p
c
B
in
Indoor unit 2
Communication cable
Indoor unit 1
Control box
PCB
Connection port
A B
Control box
PCB
A B
JP
1
of last unit on
main bus should be on
Indoor unit i
B
Communication cable
Control box
A
PCB
JP1
A
B
A
B
A
B
c
o
m
2
Connection port
Connection port
com1
c
o
m
2
c
o
m
2
com1
com1
8.3.2 For combined outdoor units
Note: For MDS320B(R) you can use only the separate connection, other combined units we recommend use the series connection.
8. 4 Communication cable wiring for indoor and outdoor unit;
As shown as below:
For combined unit:
Indoor unit
Switch
Fuse
Fuse
Switch
Power
L1
L2
Fuse
Switch
L1
L2 L3 L2 N
Fuse
Switch
L1 L3 N
L3 N
Two-core cable
(power circuit)
Switch
Fuse
Outdoor unit
Master Slave
Two-core cable
(power circuit)
Separate electrical connection for
combined outdoor unit(FOR MDS260
～
320B(R))
Indoor unit
Master
Outdoor unit
Two-core cable
(power circuit)
Two-core cable
(power circuit)
Fuse
Switch
L1 N
Switch
Fuse
L1 N
Power
L3
L1 L2
N
Fuse
Switch
L2 L1
L3
N
Switch
Fuse
L1 N
Slave
Series electrical connection for combined outdoor unit
(FOR MDS260
～
300BR)