START/STOP MENU
300 - Start/Stop of Zones
The top line indicates the specific zone (“A” is the default
for BoosterpaQs), the zone name if entered, and its control
parameter.
The bottom line selects whether the zone is active or
switched off.
The zone has four settings:
[on] The pumps are started by the PMU 2000, depending
on the required performance.
[off] The pumps in the zone are switched off.
[local] The pumps are not controlled by the PMU 2000, but
by the PFU 2000.
[max.] All pumps which are set to [on] in display 301 are
operated at maximum performance. All internal monitor-
ing functions remain active. Any remote-controlled set-
points, clock program (multiple set-points), and external
start/stop inputs are not active.
301 - Start/Stop of Pumps
The top line indicates the specific pump and its operating
condition (see the Pump Status Menu).
The bottom line is used to select whether the pump is
active or switched off.
[on] The pump is started by the PMU 2000, depending on
the required performance.
[off] The pump is switched off.
ZONE STATUS MENU
(Adjustments cannot be made here—for viewing only)
401 - Actual Set-point
This display indicates the actual set-point. If it is different
than “set-point max.” it may be due to the settings entered
in other displays. These are called “influences.” To see if
there are any factors influencing the actual set-point, press
“Enter” when in Display 401 to bring up Display 402.
If the operating pressure is lower than the set-point, before
assuming a hardware problem, check this menu to deter-
mine if other factors may be lowering the set-point, result-
ing in a lower actual system pressure.
402 - Set-point Influence
This display indicates the set-point influences selected and
the impact they will have on modifying “set-point max.”
to produce “set-point act.” If more than one set-point
influenced is entered, several underlying displays can be
triggered (for example: 201, 202, 217, 222, 224, 225, and
226). Display 204, system time constant does not change
the set-point, but if it is set much lower than it should be,
sluggish action could incorrectly give an appearance that
the set-point is too low or a hardware problem exists.
This function can be used to check for a broken pipe. The
system designer must confirm what the limit should be to
indicate a broken pipe to avoid nuisance tripping. If a pipe
has actually broken, the pressure won’t rise and the system
won’t restart, preventing further water loss and possible
water damage.
If the pressure at the sensor drops below the “min. limit”
for more than five seconds and display 230 is set to [off],
all pumps will stop and a fault indication will be produced.
If the pressure falls below “min. limit” and Display 230
is set to [on], the pumps will not be switched off, but a
fault indication will be produced and recorded in the Fault
Indication Menu.
If the pressure rises above “min. limit” or more than five
seconds, the fault indication will disappear and the pumps
will be switched on automatically.
The set range is from 0 to the maximum value of the pres-
sure sensor.
230 - Min. Limit Operation
[on] No pumps are switched off at “min. limit” operation,
but a fault indication is produced.
[off] The pumps are switched off at “min. limit operation”
and a fault indication is produced.
231 - Min. Pre-pressure (low suction pressure)
This display only appears if pre-pressure measuring is [on],
Display 216.
This display sets the “min. pre-pressure” at which a fault
indication is produced. If the inlet pressure falls below
“min. pre-pressure,” all the pumps are switched off and a
fault indication is produced. It protects against dry run and
can be used to shut off the system if the inlet drops below
local government low inlet pressure limits. When the pres-
sure rises above the “min.” pressure value, the fault resets
and the system will run.
See PMU factory settings.
232 - Maximum Head
This display records the maximum pump head for each
pump at 0 flow (shut-off) and 100% RPM. The PMU 2000
requires this information for smooth operation.
233 - Running Hours
This display changes the recorded running hours for each
pump. If a pump is replaced or service is performed, the
running hours can be set to 0 in order to keep a record of
total running hours without having to log it.
234 - Pump Start Time
Only available when the service code is entered. Consult
factory.
235 - Hydraulic
Sets the pumps to operate in series or parallel. BoosterpaQ
pumps always operate in parallel. Only available when ser-
vice code is entered.
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