Double Pump Installation/Y-Pump Installation; Setting The Pump Performance - salmson SIE Installation And Starting Instructions

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9.2 Double pump installation/Y-pump
installation
Fig. 38: Setting the master pump
9.3

Setting the pump performance

90
NOTE:
For double pumps, the left-hand pump in the direction of flow is
already factory-configured as the master pump.
For the initial commissioning of a double pump or Y-pump installation
that is not preconfigured, both pumps are set to their factory setting.
Error code 'E035' is displayed after the double pump communication
cable is connected. Both drives run at the emergency operation
speed.
On acknowledgement of the fault signal, menu <5.1.2.0> is displayed
and 'MA' (= master) flashes. In order to acknowledge 'MA' , the access
disable must be deactivated and service mode must be active (Fig.
38).
Both pumps are set to "master" and 'MA' flashes on the displays of
both electronic modules.
• Acknowledge one of the two pumps as master pump by pressing the
red button. The status 'MA' appears on the display of the master
pump. Connect the differential pressure sensor to the master.
The measuring points of the differential pressure sensor of the master
pump must be on the suction and pressure side of the double-pump
system in the corresponding collector pipe.
The other pump will then display the status 'SL' (= slave).
All further pump settings must now be made via the master only.
NOTE:
The procedure can be manually started later by selecting the menu
<5.1.2.0>.
(For information about navigation in the service menu, see 8.6.3
"Navigation" on page 80.)
• The system was designed for a certain duty point (full load point, cal-
culated maximum heating capacity requirement). During commis-
sioning, the pump output (delivery head) must be set according to the
duty point of the system.
• Factory settings do not comply with the flow rate required for the
system. It is determined with the help of the pump curve diagram for
the selected pump type (from catalogue/data sheet).
NOTE:
The flow value shown on the IR-Monitor/IR-PDA display or output to
the building management system must not be used to control the
pump. This value is merely an indicator of general trends.
A flow value is not output on every type of pump.
CAUTION! Risk of property damage!
An inadequate volume flow can lead to damage on the mechanical
shaft seal; the minimum volume flow depends on the rotation
speed of the pump.
• Make sure that the volume flow does not go below the minimum
value Q .
min
Calculation of Q :
min
Q = 10% x Q x
min max pump
Actual speed
max. speed
Pompes Salmson 04/2012