Xylem ECOCIRC XL & XLplus - Manual (Page 25)

pump instability and the clapet valve may be-
come noisy. The use of ecocirc XLplus is sug-
gested for parallel operation.
6 System Setup and Operation
Precaution
WARNING:
• Always wear protective gloves when
handling the pumps and motor.
When pumping hot liquids, the
pump and its parts may exceed
40°C (104°F).
• The pump must not run dry as this
can result in the destruction of the
bearings. Fill the system correctly
with liquid and vent the air before
first start-up.
NOTICE:
• Never operate the pump with ON-OFF valve
closed for longer than a few seconds.
• Do not expose an idle pump to freezing condi-
tions. Drain all liquid that is inside the pump.
Failure to do so can cause liquid to freeze and
damage the pump.
• The sum of the pressure on the suction side
(water mains, gravity tank) and the maximum
pressure generated by the pump must not ex-
ceed the maximum working pressure that is al-
lowed (nominal pressure PN) for the pump.
• Do not use the pump if cavitation occurs. Cavi-
tation can damage the internal components.
6.1 Configure the pump settings
Change the pump settings using one of the follow-
ing approaches:
• User interface
• Bus communication
13 (available only on ecocirc XLplus)
• Wireless communication
14 (available only on ecocirc XLplus)
6.1.1 Change the communication
parameters
Change pump communication parameters. See
Figure 13 .
1. Switch off the pump.
Wait until the power indicator switch-off be-
fore continuing.
2. Switch on the pump.
3. When the display shows COMM (COM)
15 ,
press the parameter button (3) to enter inside
the communication menu.
4. Select one of the three values with setting but-
ton.
• BAUD (BDR) 6 = baud rate setup (available
values 4.8 - 9.6 - 14.4 - 19.2 - 38.4 - 56.0 -
57.6 kbps)
• ADDR (ADDR) 6 = address setup (available
address 1÷255 for Modbus and 0÷127 for
BACnet)
• MODU (MDL) 6 = optional module setup (0
= no module; 1 = Wireless module; 2 =
RS-485 module)
5. Press the parameter button to enter the sub-
menu
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.
If no buttons are pressed for 10 seconds, then the
pump exit the current menu and continue start-up
procedure. All the parameters that are changed
without confirmation are restored at previous state.
6.1.2 Change the control mode
The pump can be controlled by a BMS 16 (Building
management system) or other devices through the
RS-485 communication port via Modbus or BAC-
net 17 protocol.
The following instruction is used when making the
change on the user interface. See Figure 13 .
• Press the operating mode button.
• The operating modes are cyclically changed by
the pressed button.
mode
mode
mode mode
mode
mode
6.1.3 Change the set point
See Figure 13 as reference.
1. Press one of the setting buttons (5).
The display starts to blinking the actual set
point.
2. Change the value using the buttons (5).
3. Wait 3 seconds to store and activate the new
set point.
13 not described in these instructions, see Communication manual on www.lowara.com
14 requires the installation of Wireless module on the pump
15 On three digit display of models 25-40, 25-60, 32-40, 32-60
16 Commmunication features and optional modules are available only for ecocirc XLplus models.
17 Not available on 25-40, 25-60, 32-40, 32-60 models.
en - Translation of the original instructions
25