SystemAir SAVEWALL HRV NEXT, Installation Manual

Page: 4 / 20

4
Filter reset
Every 3 months a yellow warning led switches on (fixed light) to indicate
that the filters have to be maintained. Press the dedicated button for 5
seconds to reset the timing.
green short
Smart humidity control
When the humidity sensor detects a quick variation of the Relative
Humidity level, the running speed automatically increases to the next
higher speed. After 10 minutes from the last quick RH variation, the unit
returns running at the selected speed. The smart humidity control is active
if the airflow direction is set on alternate or extract only: if speed 5 has
been selected, no speed increase happens. To disable this functionality,
press the button for 5 seconds: on the top side of the LCD display
the symbol is shown.
flashing blue
Antifrost
This functionality prevents frost building up on the heat exchanger due
to extremely cold air. When it is activated, the unit runs in extract only at
speed 1, for 30 minutes.
fixed red
Acoustic signal
Any time a setting is transferred from the controller to the unit, a short
acoustic signal is emitted. This can be deactivated by pressing the
cgfgf
button for 7 seconds, after when a green led flashes to indicate that the
acoustic signal is off. To reactivate the acoustic signal repeat the same
operation for 7 seconds until the led becomes green and an acoustic signal
is emitted.
green short
FILTER
RESET
BACK UP BUTTON
In case the remote controller gets lost or the batteries are dead, speeds 1, 3 and OFF position can be selected from the on
board touch button (C). The airflow direction is always alternate and the operation mode (either comfort or efficiency) is the
last selected from the remote controller.
SYNCHRONISATION OF A NUMBER OF UNITS
It is possible to synchronized up to 10 units contemporaneously, through wire (2 pole twisted pair type , max 30m length)
so to have mode and inversion time synchronized. When the unit is switched on for the first time, the rotation direction of
each unit (clockwise or anti-clockwise) is automatically established. Other functionalities like speed, smart humidity control
and boost , continue to be controlled independently on each single unit.
Wiring diagram as per fig. 16B.
Maintenance can be carried out by the user as indicated in page 12.
MAINTENANCE
SPEED LED COLOUR ACOUSTIC SIGNAL
speed 1 single green led short, single
speed 3 double green led short, double
OFF red led long