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8. ALARM INDEX

Through the LED located in the user control
status of the unit. This Led will show the alarm (check see table) in case of produce the
failure of some critical components of the unit or simply by notification (replacement
filters, by-pass manual mode, supply temperature <15ºC). Depending on risk level of
the alarm generated, the control will manage the response required. If it is necessary,
the unit will be stopped for safety reasons.
Priority
Alarm/State
1
Extract fan Failure
2
Supply fan failure
3
Supply air temperature <15ºC Red LED, 4 blinks
4
ODA Sensor failure (fresh air)
5
SUP sensor failure (supply)
6
ETA sensor failure (extract)
7
EHA sensor failure (exhaust)
8
Dirty filter failure
9
ON Bypass manual mode
10
Active defrost
Blink: A=0,75s; Interval : B= 3s
1
A
B
2
A A A
3
A A A A A A A
4
A A A A A A A A A
5
A A A A A A A A A A A
6
A A A A A A A A A A A A A
7
A A A A A A A A A A A A A A A
8
9
10
A A A A A A A A A A A A A A A A A A
Red LED, 1 blink
Red LED, 2 blinks
Red LED, 5 blinks
Red LED, 6 blinks
Red LED, 7 blinks
Red LED, 8 blinks
Red LED continuous
Green LED
continuous
Green LED blinking
B
B
it is possible to supervise the
LED
Unit stops
Unit stops
Unit stops. Every 2 hours
the unit starts for 5 minutes
to check if conditions allow
normal operation.
Normal operation
Normal operation
Normal operation
Normal operation
Normal operation
Normal operation
Defrost management
B
B
B
36
ACTION
B

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