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3.3 Normal Run / Standby / Start-up – No User Intervention Required
Once the unit has initialised User LED 1 refers to cylinder 1, while User LED 2 refers
to Cylinder 2. For combinations of LED 1 and LED 2 being off, RED or RED Flashing
refer to following table.
User LED 1 User LED 2 Description
1 OFF OFF
Cylinder 1 and Cylinder 2 (if fitted) in shutdown.
Or
Cylinder 1 in standby and Cylinder 2 in shutdown.
2 OFF
RED Flashing
1 second period
Cylinder 1 and Cylinder 2 (if fitted) in standby
3
Green Amber
Flashing Variable
RED Flashing
Variable Period or ON
OFF
OFF
Cylinder 1 Startup. Cylinder 2 (if fitted) in standby.
Cylinder 1 Online. Cylinder 2 (if fitted) in standby
The variable period is determined by the demand signal for cylinder
1 as follows,
Cylinder 1 demand LED ON RED LED OFF
<12.5% 0.5 seconds 3.5 seconds
<25% 1.0 seconds 3.0 seconds
<37.5% 1.5 seconds 2.5 seconds
<50% 2.0 seconds 2.0 seconds
<62.5% 2.5 seconds 1.5 seconds
<75% 3.0 seconds 1.0 seconds
<87.5% 3.5 seconds 0.5 seconds
>=87.5% ON RED Continually
4 Any
Green Amber
RED
Cylinder 2 Start-up
Cylinder 2 Online
The above are purely indications of the current state of the unit, and require no action
from the operator. When the state changes the indication will automatically change.
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