
CRC
/
CRR units with IRC electronic board
IRC-ETN-M 9060166
IRC-ETN-S 9060167
ETN +/-3°C with electronic board fitted on the unit
ETN +/-3°C with electronic board not fitted on the unit
Infra-red remote control with electronic board fitted on the unit (MV-MO-MVB only)
Infra-red remote control with electronic board not fitted on the unit (IV-IO only)
desCRiption
IRC-M 9060175
IRC-S 9060176
identifiCation Code
The Carisma units can be supplied with a micro-processor managing system operated by an infra-red remote control
with liquid crystall display or by a wall-mounted IRC-ETN control.
Integral with the unit is an electronic board with RS485 communicating connection which can control up to 20 units
connected between them. The electronic board is of master/slave mode and the serial communicating connection
allows the serial connection; in the master/slave connection of more units, it is recommended to install the infra-red
receiver on the master unit.
IRC controls are not suitable for Crystall electronic filter and BEL electric heater.
The units with IR control are supplied with room temperature probe and
water temperature probe (cut-out thermostat).
The infra-red remote control
features the following functions:
- Temperature set.
- Fan speed switch
with possible automatic speed selection.
- 24 hours on/off program.
- ON/OFF cooling valve control.
- ON/OFF heating valve control.
- Control of the valves only or of the valves and the fan together.
- Valve control of 2 or 4 pipe systems
with winter/summer switch on the infra-red control.
- Valve control of 4 pipe systems
with automatic heating/cooling mode selection with 2°C dead zone.
-
Activating the sensor connected to the T3 contact of the board (non active
in the standard configuration), it works like a cut-out thermostat: fitted
between the coil fins it stops the fan when the water temperature is lower
than 38°C and it starts the fan when the water temperature reaches 42°C.
The wall-mounted control
features the following functions:
- Switch the appliance ON and OFF.
- Set the fan speed.
- Set the range of temperature settings
(default +/- 3 °C, modifiable on site up to +/- 9°C).
- Modify the set point determined by the system by a value of +/- X°C.
The Maxinet system (see the following pages) can set the operating mode,
the set point and all other operating parameters of the unit, as well as
display the settings made by the user. The Maxinet system always has
priority over the ETN controller. For the correct use of the system, also see
the manual for the Fan-coil with remote control and the Maxinet supervision
program.
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