Helios AIR1 XC 500 L Notice De Montage Et D'entretien page 104

Installation and Operating Instructions
EN
Compact Ventilation Units AIR1 XC
4�3 Priorities
If multiple ventilation modes are active at the same time, the ventilation unit will run at the respective ventilation stage
with the highest priority. This means that the external switch contact overrides all other ventilation stages.
Priority list (highest priority first):
• Fire/emergency contact
• External switch contact
• Manual operation with HMI or use of building control system (Bacnet, Modbus)
• External switch contact Intensive
• External switch contact Normal
• External switch contact Minimal
• External switch contact Recirculation
• Timer Intensive
• Timer Normal or Timer VOD with higher ventilation requirement
• Timer Minimal or Timer VOD with higher ventilation requirement
• Timer Recirculation or Timer VOD
• Free cooling (night cooling)
4�4 User levels/Access rights
Depending on the selected operating level, different functions/menus are active via the controller.
The following user levels are available:
• No rights
• User (password: 3333)
• Service (password: 2222)
• Administrator (password: 1111)
The user levels can be modified in the "Access rights" menu. All user levels will automatically reset to "No rights" after
a pre-set time of 5 minutes from the last press of a button.
All passwords can be modified in the "Access rights" menu under "Change password".
If the Administrator password was modified and then forgotten, a temporary master password can be requested from
Helios (Helios customer services).
The following menus can only be read at the following user levels:
• Operating mode – No rights
• Temperature – No rights
• Fan control – No rights
• Timer – No rights
• Selected functions (pure menu display) – No rights
• Alarms – No rights
• Manual/Automatic – Service
• Configuration – Service
• Settings – Service
• Commissioning assistant (wizard) – Administrator
The following menus can only be actively modified at the following user levels:
• Operating mode – No rights
• Temperature – User
• Fan control – User
• Timer – User
• Alarms – User acknowledge, Administrator block
• Manual/Automatic – Service
• Configuration – Service
• Settings – Service
Commissioning assistant (wizard) – Administrator
41