Toshiba SUPER-HRM MMY-MAP0802FT8 Installationshandbuch Seite 9

6
ELECTRIC WIRING
• Specifications of wires for controlling
1. Connect each wire for controlling as shown below.
Connect control wiring between indoor and outdoor unit to the header unit.
Shield wire
earth
• Group Control through a
Remote Controller
Group control of multiple indoor units
(8 units) through a single remote controller
For Indoor unit power supply (The outdoor unit has a separate power supply.)
Model
All models of indoor units
Indoor unit - FS unit power supply wiring
NOTE :
The connecting length indicated in the table represents the length from the pull box to the outdoor unit when the
indoor units are connected in parallel for power, as shown in the illustration below. A voltage drop of no more than
2% is also assumed. If the connecting length will exceed the length indicated in the table, select the wire thickness
in accordance with indoor wiring standards.
Indoor power source
single phase 220–240V, 50Hz
Switch
Earth leakage breaker
FS unit
1
FS unit
5
Header unit
U1 U2 U3 U4 U5 U6 U1
Control wiring
between outdoor units Shield wire
Control wiring between
indoor and outdoor units
Remote
controller
Item
2.0 mm² (AWG#14) Max. 20m
Use the communication wire (6m) attached to FS unit.
If the indoor unit is placed 5m or more apart from the FS unit, use the connecting wire
(RBC-CBK15FE (16m)) sold separately
(1) Keep the refrigerant piping system and the indoor-indoor/indoor-outdoor control
wiring systems together.
(2) When running power wires and control wires parallel to each other, either run
them through separate conduits, or maintain a suitable distance between them.
(Current capacity of power wires: 10A or less for 300mm, 50A or less for 500mm)
Pull box
FS unit
2
FS unit
6
Follower unit Follower unit
U2 U3 U4 U5 U6 U1
indirect
connection
Indoor unit No.1 No.2
A B A B
(A.B)
Power supply wiring
Wire size
CAUTION
FS unit
3 4
FS unit
7 8
5
U3 and U4 terminals
U2 U3 U4 U5 U6
are used when a central
control which connects
each line is adopted.
Shield wire
earth
No.3 No.4
A B A B
3.5 mm² (AWG#12) Max. 50m
FS unit
FS unit
No.7 No.8
A B A B