Toshiba MMY-MAP0806FT8P-E Installation Manual page 20

• Communication wiring and central control wiring use 2-core non-polarity wires.
Use 2-core shield wires to prevent noise trouble.
• Connecting the closed end terminal of shield wire.
(Connected to all connecting sections in each unit)
• Use 2-core non-polarity wire for remote controller. (A, B terminals)
Use 2-core non-polarity wire for Multi port type FS unit and Single port type FS unit (Long piping model). (A, B terminals)
Use 2-core non-polarity wire for wiring of group control. (A, B terminals)
• In case of Single port type FS unit, control wire and power line wire between FS unit and indoor unit are the accessory parts of
FS unit. (Wire length : 6 m)
If the length between indoor unit and Flow selector unit exceeds 5 m, connect by using the Connection cable kit sold separately
(RBC-CBK15FE).
37-EN
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Restriction of control wiring
Be sure to keep the rule of below tables about size and length of control wiring.
Central
control
device
U1 U2
U3 U4
Header Header
unit unit
U3 U4 U3 U4
Outdoor
unit
U1 U2 U5 U6 U1 U2 U5 U6
L1
Indoor U1 U2 U1 U2 U1 U2
unit
A B A B
Remote
controller controller
Table-1 Control wiring between indoor and outdoor units (L1, L2, L3), Central control wiring (L4)
Wiring 2-core, non-polarity
Type Shield wire
Size/Length 1.25 mm : Up to 1000 m/2.0 mm
2
(*1): Total length of Communication wiring length for all refrigerant circuits (L1 + L2 + L3 + L4)
Table-2 Communication wiring between outdoor units (L5)
Wiring 2-core, non-polarity
Type Shield wire
Size/Length 1.25 mm 2
Table-3 Remote controller wiring (L6, L7), Multi port type FS unit and Single port type FS unit
(Long piping model) wiring (L8)
Wiring 2-core, non-polarity
Type 0.5 mm to 2.0 mm
2
• Up to 500 m (L6 + L7)
• Up 400 m in case of wireless remote controller in group control.
• Up to 200 m total length of control wiring between indoor units and Multi port type FS unit
Size/Length
and Single port type FS unit (Long piping model) (L6+L8)
• Up to 300 m (L6 + L7+L8)
• Up to 300 m (L7)
Super modular multi system
Table-1
L4
Follower Follower Header
unit unit unit
U3 U4 U3 U4
U3 U4
U1 U2 U5 U6 U1 U2 U5 U6 U1 U2
U1 U2 U5 U6
L5
Table-1
L2
U1 U2 U1 U2 U1 U2 U1 U2
A B A B
A B A B
Table-3
L7
Table-3
Remote Remote
controller
: Up to 2000 m (*1)
2
to 2.0 mm 2 /Up to 100 m (L5)
2
Follower
unit
U3 U4
U5 U6
Table-2
L3
U1 U2
A B A B
Table-3
L6 L8
A B A B A B A B
Multi port type
FS unit and
Single port type
FS unit (Long
piping model)
38-EN