How To Wiring - Toshiba TCB-CC163TLE Installations-Handbuch

How to wiring

CAUTION
<Basic wiring diagram>
Refrigerant
system 1
(VRF)
Central control wiring
ON-OFF
controller
1-1
When
connecting to
VRF outdoor
units
MMO : Super Modular Multi Indoor Unit model name.
(MMU, MMD, MMC, MML, MMK and MMF)
"VRF" shows S-MMS and S-HRM.
"RAV" shows DI and SDI.
"1:1 Model" connection interface : TCB-PCNT30TLE.
8
Ensure that wiring connections are correct. (Incorrect wiring will
damage the equipment.)
How to wire the ON-OFF controller
In order to ensure safety, turn off the air conditioner power before mounting or
removing the ON-OFF controller.
1) Connect the communication wires to the indoor/outdoor unit connecting
wires or central control wiring.
2) Use the following as the control wiring.
Total wire length of less than 1,000 meters: Shield wire 1.25mm
Total wire length of less than 2,000 meters: Shield wire 2.0mm
The total wire length is obtained by adding the lengths of the indoor/outdoor
unit control wiring to the lengths of the central control wiring.
3) Do not run the control wiring inside the same electrical wire conduits as the
power cables, connect them using similar wires or allow them to be routed
near other wires.
4) For the communication wires, use control wires that visually identify them as
being different from either the remote controller wires or the power cables.
5) Connect the power cable of the ON-OFF controller to the AC220–240V
power source. (Incorrect wiring will damage the equipment.)
6) Connect the wires in such a way that none of the wires will be connected
incorrectly. (Incorrect wiring will damage the equipment.)
Connect the control wiring of the air conditioners shown which is the
wiring employed when using central control is used.
• The maximum number of air conditioners which can be connected in one
central control system is 64 indoor units and 16 outdoor units (Header
units).
(With VRF system)
• The ON-OFF controller can connect two units (main and sub) to each zone.
Indoor/outdoor unit
connecting wire
1-2 1-3 2-1
• When connecting to VRF outdoor units, make the connection to the central
NOTE
control wiring (U3 and U4 terminals).
• When connecting to MMO indoor units, make the connection to the indoor/
outdoor unit connecting wire (U1 and U2 terminals).
• When connecting to a RAV air conditioner, make the connection to the U3
and U4 terminals.
• The "1:1 Model" connection interface is required for the RAV air
conditioner. (except KRT series.)
• A general-purpose unit control interface is required with some air
conditioner models.
Refrigerant
system 2
(VRF)
"1:1 Model"
connection interface
2-2 2-3
When connecting to
MMO indoor units
2
2
Refrigerant
system 3 (RAV)
ON-OFF
3-1 controller
When connecting a ON-OFF
controller for RAV series
indoor unit (except KRT),
add the "1:1 Model"
connection interface on
indoor unit.
Fig. 4
OI-744-08EG