Low Water Limiter 1
This light will energise when the boiler water is below low limiter 1. The light will illuminate, a
continuous alarm will sound and the burner will go to lockout. Once the water in the boiler has
been restored to a safe operating level, pressing the Common Alarm Reset button will reset the
controls and allow the burner start sequence to initiate.
Low Water Limiter 2
This light will energise when the boiler water is below low limiter 2. The light will illuminate, a
continuous alarm will sound and the burner will go to lockout. Once the water in the boiler has
been restored to a safe operating level, pressing the Common Alarm Reset button will reset the
controls and allow the burner start sequence to initiate.
Burner Alarm
This light will be illuminated when the burner has gone to a lock-out condition due to flame failure.
The burner controller can be reset by pressing the Common Alarm reset button.
High Steam Pressure
This light indicates when the boiler exceeds the maximum allowable pressure. The high pressure
limiter can be reset using the switch on top of the controller when the steam pressure has
dropped below the set pressure.
VSD Fault
This light will illuminate when there is a fault with the variable speed drive (burner fan motor).
Common Alarm Reset
Pressing this button will clear rectified alarms. This light will extinguish when all alarms are
rectified.
Collection Chamber Full
Air Filter Bucket Requires emptying (Burner will remain OFF until emptied).
Collection Chamber Detached
Air Filter Bucket not connected or incorrectly connected preventing burner from firing.
Alarm Mute
Pressing this button will silence the audible alarms but will not clear them. Alarms must be
checked and rectified.
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