ALNOR
®
systemy wentylacji
jest prawnie chronionym znakiem i technicznym patentem. Prawo do zmian zastrzeżone.
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Instrukcja obsługi
HRU-WALL
5.3 BACK UP button (only HRU-WALL-RC)
In case the remote controller gets lost or the batteries are dead, the device can be controller, to a limited
extent, using the BACK UP button. You can on and turn off the heat recovery unit. (K image pag.15).
The airflow direction is always alternate and the operation mode (either comfort or efficiency) is the last
selected from the remote controller.
6. Synchronisation
Speed
LED colour
Acoustic signal
ON
green led
short
OFF
red led
long
HRU-WALL version:
When the units are installed in pair, they must be synchronised so that when one unit is extracting, the other
is supplying, and viceversa.
This is achieved by setting the dedicated jumper (Fig. 20A-20B). One unit is set in A position, other in B
position. Units which are supposed to work in synchronisation mode can be connected to a single HRU-WALL-
CONTR / HRU-WALL-CONTR-I controller. One can connect up to 10 units to a single controller.
6.1 Reset of the synchronisation
OPTION 1
: If two or more units are connected under the same main switch, to reset the synchronisation, the
main switch must be switched first OFF and then ON to reactivate (Fig. 34).
OPTION 2
: If two or more units are not connected under the same main switch, to reset the synchronisation,
press at the same time the black pin of each unit (Fig. 36) for at least 3 seconds.
6.2 Jumper positioning
Integral jumper set in position A (Fig. 20A) means “extract-only” mode.
Integral jumper set in position B (Fig. 20B) means “supply-only” mode.
The jumper position defines both the air-flow direction when the unit is activated for the first time
(for the synchronisation) and the air-flow direction of the free-cooling mode.
HRU-WALL-RC version:
It is possible to synchronized up to 10 units contemporaneously, through wire (2 pole twisted pair type, max 30
m 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.
Conditions and scenarios during synchronization process:
1. Each device must have been turned on independently. Turning on one device will NOT turn on the other
synchronized units.
2. The fan speed is set on each unit independently.
3. The change between Alternate / Extract / Intake modes
is independent for each unit. If, for example,
only in one unit the intake mode is turned on, the other units will continue to operate in alternate mode.
4. The change of the COMFORT / EFFICIENCY modes is synchronized, i.e. a change of mode in one unit results
in a change to all units.
Wiring diagram as per Fig. 16B
