Helios AIR1-CO DX-Serie Montage- Und Betriebsvorschrift Seite 50

Installation and Operating Instructions
EN
NOTE
m
CAUTION
Change-over-unit AIR1-CO DX
2�7 Commissioning of change-over-unit DX
For AIR1 series XC, XH and RH commissioning and wiring is described in the installation and operating inst-
ructions for the AIR1-SM DX control module (
The accessory AIR1-SM DX - control module DX is not acquired for ventilation units in series XVP and XHP� The
necessary connections are already available on the terminal board of the units�
2�7�1 Wiring change-over register DX and control module DX for AIR1 XVP und AIR1 XHP series
Overview of input and output signals
Terminal Name
42-43 DX alarm
44-45 DX Defrosting alarm
46-47 24V DC heating activate
48-49 24V DC cooling activate
50-51 0-10 V heating/cooling
10-11 Ventilation active
The signals are provided in 24 V DC, if necessary use on-site relays for adaptation to your system� The DX
alarms must be guaranteed with a potential-free contact�
2�7�2 Commissioning
Adjust the settings in the commissioning assistant after installing the change-over register DX. Refer to the correspon-
ding chapter of the installation and operating instructions for the respective AIR1 ventilation unit.
The 1-stage DO control mode must be configured in the commissioning assistant.
2�7�3 Setting the control module DX
Select a suitable AIR1 ventilation unit which is already installed.
AIR1 XHP series
Choose configuration
None
AIR1 XVP series
Choose configuration
AIR1 XVP 850
2�7�4 Configuration of on-site cooling system
If the change-over register DX is to be used as a cooler, select cooler type "DX".
- Press the "OK" button in the "Cooler type" menu.
Cooler type
DX
Select "Yes" in the "Accept all settings" menu, the controller will restart to start the desired application.
Accept all settings
and activate the
application
Yes
�
art� no� 20 384)
Signal Connection requirement
type
DI Optional alarm input.
DI Necessary for heating operation.
DO Always required if heating is
necessary.
DO Always required if cooling is
necessary.
AO Required if temperature control
via 0-10 V signal is necessary.
DO Depends on control module DX
of the cooling system.
#
OK OK
OK OK
$
#
OK OK OK OK
$
#
OK OK OK OK
$
#
OK OK OK OK
$
23
Function
As soon as control module DX alarm
is active, the AIR1 unit will issue the
alarm.
The fans are deactivated during the
defrosting process.
24 V present when heating is required.
Serves as heating start signal.
24 V present when cooling is required.
Serves as cooling start signal.
Continuously variable 0-10 V signal
present depending on the cooling or
heating requirement.
24 V
Operatingsignal of ventilation unit.
always present when fans in operation.