Alarm - Helios AIR1 RH 1500 Montage- Und Betriebsvorschrift

Installation and Operating Instructions
Central ventilation units AIR1 RH
Manual: xxx.x – The value for the control output is set between 0 and 10 V. The recirculation damper can only be com-
pletely opened or completely closed, since it is connected via a relay. Therefore, the control output should only be set
to 0 or 10 V for testing.
5 .7 Alarms
Alarm priorities A, B, C
Alarm A has no delay time and immediately deactivates the unit. The alarm must be confirmed and resolved for
•
deactivation (Log on as User).
Alarm B has a delay time. The alarm must be confirmed and resolved for deactivation (Log on as User).
•
• Alarm C has no delay time. The alarm is automatically deactivated as soon as the reasons for the triggered alarm
no longer exists.
The last 40 alarm activities are stored. The following alarm states are possible:
– Acknowledged The alarm has been acknowledged. Acknowledged alarms are displayed until the alarm is no longer
present.
– Reset The alarm is no longer present.
– Blocked The alarm has been blocked. A blocked alarm is displayed until it is no longer present and the block
is cancelled. New identical alarms will not be activated while the block exists.
– Unblocked The block has been cancelled for a blocked alarm.
– Activated The alarm has been activated from the normal state.
Alarm list:

Alarm

Fan alarms
Malfunction supply air fan
Malfunction extract air fan
Supply fan external operation
Extract fan external operation
Filter change
Filter guard 1
Filter guard 2
Temperature alarms
Supply air control error
High supply air temp.
Low supply air temp.
High room temperature
Priority Stop Check/Solution
A Yes • Please make sure that the volume flow of ventilation stage
minimal is not setto low.
• Check pressure hose connection (also inside the pressure
sensor)
• Is the duct clear before/after the unit?
• Are the volume control dampers closed?
• Is the electrical connection of the fan ok?
A Yes • Please make sure that the volume flow of ventilation stage
minimal is not setto low.
• Check pressure hose connection (also inside the pressure
sensor)
• Is the duct clear before/after the unit?
• Are the volume control dampers closed?
• Is the electrical connection of the fan ok?
C No • Fan rotating despite deactivated system
• Check external inputs
• Fan possibly propelled by booster fan
• Strong wind/draught possibly driving the impeller
C No • Fan rotating despite deactivated system
• Check external inputs
• Fan possibly propelled by booster fan
• Strong wind/draught possibly driving the impeller
B No • Replace supply air filter
B No • Replace exhaust air filter
B No • TARGET/ACTUAL temp. difference is greater than 5 K for
30 minutes
• Setpoint is unrealistic check
• Check optional heating/cooling register
• Check mixer for optional hydraulic unit
• Check flow temperature of water heating register
B No • Outdoor temp./solar radiation is very high
• Setpoint is too high (35 °C) check
• Check optional heating
• Check mixer for optional hydraulic unit
B Yes • Setpoint is too low (10 °C) check
• Check optional heating
• Check mixer for optional hydraulic unit
• Check bypass functionality
B No • Outdoor temp./solar radiation is very high
• Setpoint is too high (35 °C) check
• Check optional heating
• Check mixer for optional hydraulic unit
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