Airwell Airflow 2020, Installation And Operating Manual

Page: 18 / 80

18
6 - ELECTRIC CONNECTIONS
xc
Remote summer-winter selector switch (heat/cool)
It allows the change of the operating mode from
heating to cooling from an external control.
•
Set parameter 161
= 0 only from keypad/thermostat
= 1 control only from remote control
On - Off
Remove the jumper 12cn1 and 12a on the XC terminal
block
•
Set parameter 162 :
= 0 only from keypad/thermostat
= 1 control only from remote control
Silent
It reduces the fan speed.
•
Set parameter 224
= 0 disabled
= 1 from digital input
= 2 digital / supervisor input
Ventilation (fan)
Only the fans are actives and no check on the
temperature and humidity is performed ( compressor,
humidifier and resistances are disabled).
Fire signalling (alarm AI)
In case of alarm signalling from a fire surveying station,
the unit can put the ambient:
-
in negative pressure
-
in pressure
-
maintains a neutral ambient
Set parameter 91 :
= 0neutral ambient
= 1 depressurized ambient
= 2 ambient in pressure
Remove the jumper 11cn1 and 3cn1 on the XC
terminal block.
Connect the alarm signalling to terminals 11cn1 and
3cn1
.
Cumlative block
Unit blocked signal
RCW15 AMBIENT THERMOSTAT
Connect the RCW15 ambient thermostat as indicated
in the figure
.
Connections :
•
3x0,34mm
2
shielded
•
max. length 80 m
RCW15 - REMOTE CONTROL WITH TOUCH SCREEN DI-
SPLAY
Remote user keypad, to control the unit main functions.
To use the keyboard, you need:
•
7ACEL1733 - 12Vdc power supply unit (supplied
separately)
•
serial communication module
(supplied separately)
For details, see instructions accessory.
RCW15 opt.
Pressing any button of the thermostat there is not
control / communication check the fuses (FU 12v and
FU NET).
If the fuses are burnt replace them and check the
connections.