Midea V8 Series User Manual

V8 Mini R410A VRF 50Hz
115
Part 3
-
System Design and Installation
Figure 3-8.8: M1 M2 communication wiring configuration – IDUs separate power supplied
8.3.5 System X Y E and O A communication
 The cross-sectional area of each core of the communication wiring is not less than 0.75 mm2, and the length must not
exceed 1200 m.
 The centralized controller and digital electric meter are optional accessories. Please contact the local dealer for
purchase if needed.
 Connect the shielding nets at both ends of the shielded wire to the sheet metal “ ” of the electronic control box.
 Applicable standards: EN 55014-1 and EN 55014-2. The communication line must be shielded wire.
Figure 3-8.9: X Y E and O A communication wiring configuration
M1 M2
M1
M2
TO UP IDU
TO DOWN IDU
M1 M2
M1 M2
L
N
···
(2-9)# IDU
M1
M2
L
L
N
breaker
Breaker
M1
M2
L1
La
Lx
L11
ODU
Breaker
N L
N L
N L
10# IDU
11# IDU
1# IDU
Power wire
Communication wire
Repeater 1
L1+La+Lx≤200m, L11≤200mm. Communication wiring 2*1.5mm
2
Digital Power Meter
O
A
Refrigerant system 1#
IDU 1#
IDU (n-1)# IDU n#
Refrigerant system 2#
Resister
P Q
ODU
P
Q
L
N
P Q
L
N
P Q
L
N
P Q
L
N
E
E
E
E
E
Digital Power Meter
O
A
Centralized controller
X Y E
X Y
E
O A
...
3-(n-2)# IDU
Refrigerant shut-off
Device
Refrigerant shut-off
Device
IDU 1#
IDU (n-1)# IDU n#
Resister
P Q
ODU
P
Q
L
N
P Q
L
N
P
Q
L
N
P Q
L
N
E
E
E
E
E
X Y E O
A
...
3-(n-2)# IDU

Midea V8 Series Specifications

General

Brand	Midea
Model	V8 Series
Category	Air Conditioner
Language	English