BoosterpaQ® Grundfos CR-Booster Systems 60 Hz

Faults, general
Fault conditions in the system are indicated by:
• Red indicator light (LED) on PFU or PMU
• Red indicator light(s) (LED) on control panel door
• PFU 2000 fault signal relay (if connected to alarm or
light)
• PMU 2000 fault signal relay (if connected to alarm or
light)
• PMU 2000 LCD display
In the PMU 2000, if installed, the last 10 “Fault” indications
are stored and sorted by time, occurrence and correction. If
more than 10 faults occur, the current faults and the latest
reset faults will be kept in the fault memory. “Warnings”
remain stored until they are reset on the PMU 2000. This
does not apply to the faults exceeding 10.
Manual resetting (restarting of PFU 2000)
A manual reset followed by an immediate restart is accomplished
in one of the following ways:
Automatic resetting
(restarting of PFU 2000)
When a fault has been corrected, the system will attempt
to restart automatically at the following intervals:
• 1st time after 15 seconds
• 2nd time after five minutes
• 3rd - 4th time at 30 minute intervals
• 5th - time once every 24 hours until the fault has been
corrected
Your BoosterpaQ will not restart automatically until the
fault has been corrected. Each fault condition, except for
faults which do not shut down operation, increases the
restarting count attempts stored in memory. The number
of stored restarting attempts is reduced to zero by manual
resetting, allowing an immediate restarting attempt.
If not manually reset, the number of stored restarting
attempts will be reduced by one every three hours after
the alarm disappears. After a certain time without faults,
an automatic restarting attempt will be made 15 seconds
after the fault has been corrected (“1st time mode”).
• Press the “Reset” button on the PFU 2000
• Turn the function selector in the PFU 2000 to STOP,
then adjust back to the original settings
• Reset the fault indication(s) which caused the stop by
pressing “Enter” while in the “Fault Indication Menu”
of the PMU 2000 until all faults are reset
The PFU 2000 can be manually reset every fifth second.
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