S&P CADB-HE BASIC Series Manual page 37

Heat recovery unit with integrated control
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The number of LED fl ashes refers to the type of error detected:
Priority
Alarm/Status
1
Communication error
between hand terminal
and electronic board
2
Extraction fan failure
3
Supply fan failure
4
Defrost active
5
Bypass OPEN in manual
mode
6
Clogged fi lter alarm
7
ODA temp. probe failure
(fresh air)
8
SUP temp. probe failure
(supply)
9
ETA temp. probe failure
(extraction)
10
EHA temp. probe failure
(exhaustion)
The appearance of an alarm generates the activation of the digital output A1-A2, with the exception of
alarms for "Defrost active" and "Bypass open in manual mode".
Hand terminal communication error
Fault extraction fan
Fault supply fan
ODA temp. probe failure
SUP temp. probe failure
ETA temp. probe failure
EHA temp. probe failure
Clogged fi lter alarm
Bypass ON manual mode
Defrost active
A: 0,75 s
B: 3 s
Led
Red led, 1 blink
Red led, 2 blinks
Red led, 3 blinks
Flashing green led
Continuous green led
Continuous red led
Red led, 4 blinks
Red led, 5 blinks
Red led, 6 blinks
Red led, 7 blinks
A
B
A A A
B
A A A A A
A A A A A A A
A A A A A A A A A
A A A A A A A A A A A
A A A A A A A A A A A A A
A A A A A A A A A A A A A A A A A
Actuation
Stop the unit
Stops unit after 90 s (adjustable) from the
"Fan Fault" activation. The "Fan Fault" will be
activated only when the alarm situation has
been maintained active for 30 s (confi gurable).
Stop unit after 90 s (adjustable) from the
"Fan Fault" activation. The "Fan Fault" will be
activated only when the alarm situation has
been maintained active for 30 s (confi gurable).
Defrost management
Normal operation
Normal operation
The unit stops
Normal operation
Normal operation
The unit stops (freezing risk of the heat
exchanger)
B
B
B
B
B
37

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