FULTON RB Series Installation, Operation And Maintenance Manual page 25

Fulton Ltd
Boiler controls and indicators are housed in a control panel mounted on the side of the boiler.
These are as follows:
Power Isolator Switch
Control panel power supply ON/OFF switch, mounted on the panel door.
Power On Indicator
Indicates that the door mounted 'power on' isolator is in the ON position and that the panel is
electrically live.
The Power On indicator is derived from a single phase. It is possible that with the control phase down
or a defective bulb the other phases could be live. Always isolate the supply before investigating any
Pump Only/Off/Pump & Burner On
This rocker switch has three separate functions. In the PUMP ONLY and PUMP & BURNER
ON positions, the power supply is switched through to the control system. It is a mandatory
requirement of the AOTC and Gas Supply Standards that when the control system is first
energised, or re-energised (power restoration), it must go to a fail-safe shutdown position, sound
an alarm and require manual resetting to cancel the alarm. The alarm condition, when activated,
is cancelled by resetting the 2nd low water reset switch.
PUMP ONLY Position
This position should only be selected to fill the boiler. The normal functions of the level control
alarm system are overridden to prevent a continuous alarm while the boiler is being filled. The
pump off level control will function normally and switch the pump off once the correct water
level is reached.
Note: The burner mounted Burner On/Off/Reset Switch should be in the OFF position during the filling process.
Note: The Pump On/Pump Off Switch should be in the PUMP ON position.
Both alarms will be cancelled when pressing the reset switches irrespective of the water level in the boiler.
OFF Position
In this position the burner, feedwater pump and control system are off.
PUMP & BURNER ON Position
In this position, both burner and pump will run under automatic control providing that the
burner mounted Burner On/Off/Reset Switch is in the ON position, and the Pump On/Pump Off
Switch is in the PUMP ON position.
Note: When selecting this position from either PUMP ONLY or OFF, the power restoration alarms will be
activated. The alarm can be cancelled by pressing the 2nd Low Water Alarm/Reset switch.
Note: The 2nd Low Water alarm can only be cancelled if the boiler water level is above the 2nd low water level.
If the alarm cannot be cancelled, allow the feedwater pump to restore the water level to the normal working level
(approximately midway up the sight glass) and then reset the alarm.
Pump Off/On switch
This switch is only used for evaporation and low water tests.
It interrupts the power supply to the feed pump contactor coil.
RB-RBC-IOMM-2015-1
!
CAUTION
fault.
OPERATION - 3
CONTINUED ON NEXT PAGE
Page 19