42 WHC/AQUASMART
GB - 8
Communicating AQUASMART control system
Wiring diagram
To the valve
The control system consists of two boards - HY-NEC and HY-NEC
(Prime). As an option it is possible to have a Room Controller or an
infrared remote control.
To facilitate maintenance operations and work times, all
Aquasmart controller connections have faston connections,
pre-wired in the factory.
The AQUASMART system is supplied in the following configurations:
• 2 pipes version.
The controller senses the room temperature either via the
temperature sensor incorporated in the room control panel (CRC)
(if supplied) or via a temperature sensor incorporated in the return
air of the FAN COIL.
P
G
C
WS
230V ~ 50Hz
Air sensor
To the Room
Controller
(CRC) optional
Warning lights and controls
Room Controller
connector
Infrared remote
control connector
Legend
WS Window contact switch
N* Green indicator: unit ON - unit OFF when not lit.
P*
Yellow indicator: (not used).
Q*
Red indicator: indicates a failure on the unit.
R Operation switch (used by authorized service personnel
only
):
three-position switch for “normal”, “emergency” or “X” not
used.
“Normal”: switch position for unit standard operation.
“Emergency”: put switch in this position if you want to start the
unit and the infrared remote control does not work
(e.g. - exhausted batteries). With the switch in this position unit will
keep the room temperature at 23°C at the following conditions:
•Fan speed: automatic;
•Louvre: automatic.
After the controller operation has been restored, reset the switch
to the “normal” position.
“X”: not used.
S Signal receiver from infrared remote controller.
* Planned for future availability.
The unit is factory-set to operate with the
infrared remote control.
To connect the Room Controller (CRC)
disconnect the connector of infrared remote
control (4 red wires) and substitute
it with the Room Controller connector
(orange/brown/blue wires).
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