Carel MasterAria, Руководство пользователя

Страница: 7 / 60

7
ENG
MasterAria +030220481 - rel. 1.0 - 12.11.2007
1. INTRODUCTION
Features of the MasterAria family:
“Acqua” remote terminal with an elegant appearance, built-in room
•
temperature sensor and diversifi ed access to the various functions
(values set using the front buttons, operating mode changed using
the side buttons);
Control board with high number of I/Os (5 digital inputs, 3 probes,
•
5 relay outputs and dipswitches for simple confi guration by the
installer);
Custom connection to supervisory systems with the numerous
•
protocols supported (Modbus®, PlantVisor);
Parameter programming key (accessory);
•
Expansion board to control modulating 3-point or ON/OFF valves
•
(accessories)
MasterAria is a product designed for small air heater and air handling unit
(AHU) market, for both units with outside air only and with recirculation
or heat recovery units. It is used to manage a hot/cold water coil with
modulating valve and modulating outside air damper or alternatively two
coils with modulating valve and ON/OFF outside damper. The compact
electrical panel (IP54) contains the main control board, the expansion
board with 2 modulating 0 to 10 Vdc outputs and 2 relay outputs, the
circuit breaker and the fan protection and control contactor. Versions are
available for the control of single-phase and three-phase fan motors, with
the possibility to adjust the maximum cutoff current.
The product can also be supplied without the electrical panel, with the
main control board and expansion board selected with 2 modulating 0
to 10 Vdc outputs and 2 relay outputs, 4 triac outputs, 2 triac outputs and
2 relays, or 4 relay outputs and the “acqua” remote terminal.
The 3 outputs on the main board for controlling the fan can be used to
manage single-phase 3-speed fans (the fi rst output controls the contactor
in the MasterAria electrical panel) and three-phase fans.
The system is simple to confi gure by setting the dipswitches on the main
control board and the parameters on the “acqua” remote terminal; this
can in fact be used to display the alarms, set the parameters and the on/
off time bands.
The possibility of confi gure the outputs and the availability of various
expansion boards means various types of loads can be controlled, such
as hot/cold water coil valves, heaters, hot and cold water signals to the
chiller/heat pump and boiler, outside damper, recirculation damper and
heat recovery unit damper.
The RS485 serial board (accessory) can be used to create custom
(PlantVisor) or open (Modbus®) supervisory systems.
Finally, the pCOWeb board (accessory) can be used to connect MasterAria
to a computer on an intranet, or alternatively to a save the variables and
graphs to a fi le that can be sent using Internet Explorer™.