Group Control And Optional Controllers - Toshiba HWT-60 Installation Manual

Hydro Unit
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.
Terminal block (TB04) for the
remote control wiring
A B
Earth Earth
Remote
controller
(Header)
Hydro Unit No.1
▼Fig.8-01
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Remote controller inter-unit wires for group
control (Locally procured)
A B A B
Earth Earth
Remote Remote
controller
controller
Hydro Unit No.2 Hydro Unit No.3
Hydro Unit No.1
wiring of remote
O
controller
Remote controller
Remote controller
(Second)
(Sold
separately)
A B
A B
NOTE
The above address is set by automatically when the power is turned on. However, Line Address and Group
Remote
Address are set randomly.
controller
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.
Hydro Unit No.8
Group control
No.2~8
• When Group control is used, the follower Hydro Units are also able to share the value of the Master Hydro Unit
x
TTW sensor. In this case TTW Connection of each follower Hydro units are not necessary.
O: connected, x: disconnected
• Set "DN AB" of each follower Hydro Units to "1".
– 20 –
Outdoor Unit Outdoor Unit
Hydro Unit Hydro Unit
Address: 1-1-1 Address: 2-1-2
Line address Group address
Indoor address
Item DN
Line address 12
Indoor address 13
Group address 14
Installation Manual
Outdoor Unit Outdoor Unit
Hydro Unit Hydro Unit
Address: 3-1-2
Address: 8-1-2
Details
1 ~ 128
1: Default ( 1 ~ 128 )
0: Individual (Not Group control)
1: Header unit
2: Follower unit
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