Toshiba Carrier MMD-AP0076BHPUL Manuel D'installation page 19

<In the case of combining with outdoor units other than Super Modular Multi System u series (SMMS-u)>
Control wiring between indoor units, and outdoor unit (L2, L3)
(2-core shield wire, non-polarity)
Central control line wiring (L1)
(2-core shield wire, non-polarity)
Control wiring between outdoor units (L4)
(2-core shield wire, non-polarity)
• The length of the communication line (L1+L2+L3) means the total length of the inter-unit wire length between
indoor and outdoor units added with the central control system wire length.
Central control device
<Other than U series>
Outdoor unit
(SMMS-i)
(SMMS-e)
(MiNi SMMS)
etc.
<U series>*
Indoor unit
<U series>*
Remote controller
* Even if the indoor unit and the remote controller are "other than U series", the wiring specification are
the same.
35-EN
1116950170_01_EN.indd 18 1116950170_01_EN.indd 18
AWG16 (Up to 3280'10" (1000 m))
Wire size :
AWG14
(Up to 6561'8" (2000 m))
Wire size : AWG14 (Up to 328'1" (100 m))
[Communication line]
(L1+L2+L3) = Up to 6561'8" (2000 m)
Remote controller wiring
2-core with non-polarity wire is used for wiring of the remote controller wiring and group remote controllers wiring.
Remote controller wiring, remote controller inter-unit
wiring
Total wire length of remote controller wiring and remote
controller inter-unit wiring = L + L1 + L2 + ... Ln
T t o l a i w e r e l n g h t f o e r m o e t c o t n o r e l l i r t n r e u - n t i w
CAUTION
The remote controller wire (Communication line) and AC 208/230V wires cannot be parallel to contact
each other and cannot be stored in the same conduits. If doing so, a trouble may be caused on the
control system due to noise or other factor.
communication specifications when carrying out the installation, maintenance, or repair For its details, refer to
8 Electrical connection.
Indoor unit Indoor unit
L
Remote
controller
L1
wiring
Remote
Remote controller inter-unit wiring
controller
– 18 –
Wire size: AWG20 to AWG14
In case of wired type only Up to 1640'5" (500 m)
In case of wireless type
Up to 1312'4" (400 m)
included
r i n i g = L 1 + L 2 + ... L n
Up to 656'2" (200 m)
Indoor unit Indoor unit
L 2 L n
EN
FR
ES
36-EN
10/21/20 12:31 PM 10/21/20 12:31 PM