Toshiba HWT-601XWHT6W-E - Group Control and Optional Controllers

Hydro Unit
Installation Manual
– 20 –
▼Fig.8-01
8 Group Control and optional controllers
To operate a group control of multiple Hydro Units
• Hydro Units are available to connect maximum 8 units.
• The wiring of remote controller on the Hydro Unit No.2 to No.8 should be disconnected as shown Fig.8-01.
• When the power supply has been turned ON, the automatic address setup starts and the address that is being
setup flashes on the remote controller display in approximately 3 minutes. During the setup of the automatic
address, the remote controller operation is not accepted.
Required time up to the finish of automatic addressing is approximately 5 minutes.
Please make sure all the DN codes in regard to the operation mode with the same setup.
• The remote Controller line (AB line) is avilable to connect maximum 2 units. Header plus Second Remote
controller or KNX or MODBUS or Wireless Adapter or 0-10V controller.
Remote controller
(Second)
Remote controller inter-unit wires for group
control (Locally procured)
Terminal block (TB04) for the
remote control wiring
Remote
controller
Earth Earth Earth Earth
(Header)
Hydro Unit No.1 Hydro Unit No.2
Hydro Unit No.3 Hydro Unit No.8
Remote
controller
Remote
controller
(Sold
separately)
Remote
controller
NOTE
The above address is set by automatically when the power is turned on. However, Line Address and Group
Address are set randomly.
In some cases, it is necessary to change the address manually after setup of the automatic address accrding to
the system configuration of the group control.
Group control
• When Group control is used, the follower Hydro Units are also able to share the value of the Master Hydro Unit
TTW sensor. In this case TTW Connection of each follower Hydro units are not necessary.
• Set “DN AB” of each follower Hydro Units to “1”.
Hydro Unit No.1 No.2~8
wiring of remote
controller
O x
O: connected, x: disconnected
AB AB AB AB
AB
Outdoor Unit
Hydro Unit Hydro Unit Hydro Unit Hydro Unit
Outdoor Unit Outdoor Unit Outdoor Unit
Remote controller
Address: 1-1-1
Address: 2-1-2
Address: 3-1-2
Address: 8-1-2
Line address
Group address
Indoor address
Item DN Details
Line address 12 1 ~ 128
Indoor address 13 1: Default ( 1 ~ 128 )
Group address 14
0: Individual (Not Group control)
1: Header unit
2: Follower unit
39-EN
40-EN