Indoor Unit; Setup At Local Site / Others - Toshiba RAV-SM2242DT-E Service Manual

9-2. Setup at Local Site / Others

Model name: TCB-PCNT30TLE2
9-2-1. 1:1 Model Connection Interface
1. Function
This model is an optional P .C. board to connect the indoor unit to 1:1 model connection interface.
2. Microprocessor block diagram
CN050
Indoor control
P.C. board
CN041
Terminal block
(A, B)
Remote controller
3. 1:1 model connection interface wiring connection
1) When controlling customized setup collectively, 1:1 model connection interface (This option) is required.
2) In case of group operation, the 1:1 model connection interface is necessary to be connected to the main unit.
3) Connect the central control devices to the central control system wiring.
4) When controlling DI, SDI series only, turn on only Bit 1 of SW01 of the least line of the system address No. (OFF
when shipped from the factory)
∗ In case of DI, SDI series, the address is necessary to be set up again from the wired remote
controller after automatic addressing.
Central control device
U1 U2
U3 U4

Indoor unit

1:1 model connection interface
This product
(
sold separately
Indoor unit
1:1 model connection interface
P.C. board
1:1 model
CN51
connection interface
communication circuit
Central control device
U1 U2
U3 U4
Refrigerant line 1
Outdoor unit
1 2 3
U3 U4 1 2 3
A B
)
Remote controller
Indoor units in all refrigerant lines: Max.64 units
[If mixed with SMMS series (Link wiring), multi indoor units are included.]
* However group follower units of SDI, DI series are not included in number of the units.
CN40
Terminal
resistance
SW01
MCC-1440
CAUTION
Central control devices: Max. 10 units
Refrigerant line 2 Refrigerant line 3
1 2 3
Header
unit
U3 U4 1 2 3
A B
Remote controller
wiring
Remote controller
Group operation (Max. 8 units)
– 62 –
Central controller
1:1 model
connection interface
Communication units : Total 64 units
Communication distance : 2000 m
1 2 3
Follower
unit
1 2 3
A B
Remote controller