NOTICE:
• Never operate the pump with discharge valve closed for longer
than a few seconds.
• Do not expose an idle pump to freezing conditions. Drain all liquid
that is inside the pump. Failure to do so can cause liquid to freeze
and damage the pump.
• The suction plus shut-off discharge pressure must not exceed the
pump pressure rating.
• Do not use the pump if cavitation occurs. Cavitation can damage
the internal components.
Do not use the pump if cavitation occurs. Cavitation can damage
the internal components and cause reduced life of the pump.
6.1 Configure the pump settings
Change the pump settings using one of the following methods:
• User interface
• Bus communication
• Wireless communication
6.1.1 Change the communication parameters
Change pump communication parameters. See User interface on page
9.
1. Switch off the pump.
Wait until the power indicator light turns off.
2. Turn on the pump.
3. When the display shows COMM, press the parameter button (3) to
access the communication menu.
4. Select one of the four below parameters using the settings button
(5).
– BAUD = baud rate setup (available values 4.8 - 9.6 - 14.4 - 19.2 -
38.4 - 56.0 - 57.6 kbps)
– PROT = communication protocol (available protocols “mod” =
Modbus; “bac” = BACnet
– ADDR = address setup (available address 1–247 for Modbus 0–
127 for BACnet)
– MODU = optional module setup (“none” = no module; “wifi” =
Wireless module; “485” = RS-485 module)
5. Press the parameter button to enter the submenu
6. Edit the values using setting buttons.
7. Press the parameter button to confirm and store the new values.
8. Press mode button to exit the submenu.
9. Repeat above procedure for each of the three parameters.
If no buttons are pressed for 10 seconds, then the pump exits the cur-
rent menu and continues start-up procedure. All the parameters that
are changed but not confirmed restore back to previous state.
NOTE: The communication setup menu is available only on display and
not through communication bus.
6.1.2 Change the control mode
The pump can be controlled by a BMS (Building management system)
or other devices through the RS-485 communication port via Modbus
or BACnet protocol.
The following instructions are used when making the change on the
user interface. See User interface on page 9.
• Press the operating mode button (1).
• The operating modes are cyclically changed by the pressed button.
6.1.3 Change the set point
See User interface on page 9.
1. Press one of the arrow setting buttons (5).
The display starts to blink.
2. Change the value using the buttons (5).
3. Wait 3 seconds to store and activate the new set point.
The display will stop blinking to confirm the change.
NOTICE:
If a check valve is installed in the system, ensure that the pump head is
sufficient to allow flow through the system.
6.1.4 Change the displayed unit of measurement
Power, Flow, Head and Speed parameters cyclically change by press-
ing the parameter button (3). In order to change the unit of measure-
ment, follow these steps:
1. Press the button (3) to change the unit of measurement. See User
interface on page 9.
Power
Speed
Head
Flow
Parameter
button
Parameter
button
Parameter
button
Parameter
button
2. When flow and head are displayed, by pressing the button (3) for
more than one second at each of these parameters, the unit of
measurement automatically changes as below:
– Flow: m3/h ↔ gpm (US)
– Head: m ↔ ft
6.2 Start or stop the pump
CAUTION:
• The pump must not run dry as this can result in premature
failure of the bearings in a very short time. Fill and vent
the system correctly before first start-up. The pump rotor
chamber will be vented after the pump is powered on
with an automatic air venting procedure. "deg" will be dis-
played indicating degassing process.
NOTICE:
The system cannot be vented through the pump.
• Start the pump in one of the following ways:
6 System Setup and Operation
12 ecocirc
®
XL INSTRUCTION MANUAL
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