installation &
operating instructions
3750 Pulpress
Pressurisation unit
17
23.5 pump 1 tripped
In 1 Pump configuration system, Pump-1 trip alarm is
activated, if the pump is tripped during operation, either in
hand or auto.
functions
• Pump will stop running.
• Activates PF1 alarm on display
• Activates Pump 1 tripped and Common Alarm VFCs
note
Pump fault need to be rectified and alarm to be manually
reset before the unit can resume operation of the tripped
pump.
23.6 pump 2 tripped
In 2 Pumps configuration system, if a single pump is tripped
during operation, either in hand or auto, it will activate the
following:
functions
• Pump 2 will stop running.
• Activates either PF2 alarm on display
• Activates Pump 2 tripped and Common Alarm VFCs
note
Pump fault need to be rectified and alarm to be manually
reset before the unit can resume operation of the tripped
pump.
23.7 all pumps tripped
If all the pumps on the unit are tripped during the operation,
either in hand or auto mode, it will activate the following:
functions
• Activates PFA alarm on display
• Activates Pump
1 & 2 tripped Common Alarm VFCs.
note
This is a major alarm. The unit will not operate with the
pumps tripped. The fault will need to be rectified and alarm
to be manually reset before the unit can resume operation.
23.8 pump run
If the pump(s) is running it will activate the following:
functions
• Shows Pump run status on the main screen
• Activates Pump Run VFC (Optional).
23.8 maximum pump run time
The maximum pump run time alarm will be activated if the
pump runs for an excessive amount of time.
functions
• Pump(s) will stop running.
• Activates Prt alarm on display
• Activates Common Alarm contact (G)
note
This is a major alarm. Excessive pump run time may indicate
a system fault such as a slow leak. The problem must be
rectified and this alarm must be reset manually.
23.9 excessive starts
The excessive start alarm will be activated if any pump starts
an excessive number of times over a certain period of time
for a particular system (Hand mode starts are not counted).
functions
• Activates Est alarm on display
• Activates Excessive starts and Common Alarm VFCs
note
This is a major alarm. Excessive pump starts may indicate
a system fault such as a slow leak. The problem must be
rectified and this alarm must be reset manually.
23.10 boiler interlock
Boiler interlock alarm would be activated when the pressure
at the transducer rises above the set high pressure limit,
drops below the set low pressure limit or the unit loses the
power.
functions
• Activates Boiler interlock alarm on display
• Activates Boiler interlock and Common Alarm VFCs
note
This is a major alarm. The system will stop pumping to the
system with the low or high pressure alarm until it returns to
normal.
The unit will then auto reset and operate as normal.
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