Toshiba HWT-60 - Page 19

Hydro Unit
Installation Manual
– 18 –
■Wiretheremotecontroller
Wiring diagram
Terminal block (TB04) for the remote control wiring on
the Hydro Unit
* Use wire of 0.5 mm
2
to 2.0 mm
2
.
* A crimp-style terminal cannot be used.
Second remote controller installation
requirements
Installation
For a dual remote controller system, install the remote
controllers in the following way.
1. Set one of remote controllers as the header
remote controller. (Remote controller of Hydro
Unit is preset as Header.)
2. Set from “Header / Second” in “Initial setting” on
the setting screen.
• To control room temperature instead of water
temperature with this remote controller, set DN “40”
of Hydro Unit to “1”.
Basic wiring diagram
NOTE
Terminals of A and B have no polarity.
To diverge from the Hydro Unit
Remote control wiring (procured locally)
Terminal block for the
remote control wiring
* Terminals of A and B
have no polarity.
Remote
controller
A
B
A
B
■CentralRemoteController(option)
To connect the Central Controller and BMS (TU2C-LINK)
CN902 for the central remote control wiring on the Hydro Unit PCB
Communication wiring and central control wiring use 2-core non-polarity wires.
Use 2-core shield wires to prevent noise trouble.
In this case, for the system grounding, close (connect) the end of shield wires, and isolate the end of terminal.
Remote controller
(Header)
Remote controller
(Second)
Terminal block (TB04)
for the remote control
wiring
Hydro Unit
Earth
(Sold
separately)
Remote control
wiring (Locally
procured)
0.5 mm
2
to 2.5 mm
2
.
BABA
AB
When connecting and controlling the system controller, the central control address (DN03) setting is required.
On some system controllers, DN03 may be set automatically.
For details, refer to the manual of the system controller used and the installation manual
Item DN Details
Central control address 03 1 ~ 128
35-EN
36-EN
Termination resistance setting
method
Turn on the termination resistance
of the equipment connected to both
ends of the central control wiring
(TU2C-LINK, Uh line).
Turn on DIP switch 1 of SW901 on the
Hydro Unit PCB(MCC-1753)
Link(Uh)
Termination
resistance ON
Termination
resistance OFF
Termination
resistance ON
Link(Uh) Link(Uh) Link(Uh)
1
2
Remote controller
Connection
point
Locally procured
(Terminal block, connector, etc.)
Locally procured
2-core, non-polarity, Shielded wire type
Size : Total Length
1.0 to 1.5 mm
2
: Up to 1000 m
2.5 mm
2
: Up to 2000 m
Central
Remote
Controller
(Optional parts)
White
50cm
Red
Blue
TCB-KBCN32VEE
Hydro Unit
main PCB
CN903
CN902
SW901