6 system setup and operation, 1 configure the pump settings, 1 change the communication parameters – Xylem ECOCIRC XL & XLplus User Manual

Page 25: 2 change the control mode, 3 change the set point

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

(available only on ecocirc XLplus)

• Wireless communication

(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)

press the parameter button (3) to enter inside

the communication menu.

4. Select one of the three values with setting but-

ton.

• BAUD (BDR)

= baud rate setup (available

values 4.8 - 9.6 - 14.4 - 19.2 - 38.4 - 56.0 -

57.6 kbps)

• ADDR (ADDR)

= address setup (available

address 1÷255 for Modbus and 0÷127 for

BACnet)

• MODU (MDL)

= optional module setup (0

= no module; 1 = Wireless module; 2 =

RS-485 module)

5. Press the parameter button to enter the sub-

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

(Building

management system) or other devices through the

RS-485 communication port via Modbus or BAC-

net

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

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.

not described in these instructions, see Communication manual on www.lowara.com

requires the installation of Wireless module on the pump

On three digit display of models 25-40, 25-60, 32-40, 32-60

Commmunication features and optional modules are available only for ecocirc XLplus models.

Not available on 25-40, 25-60, 32-40, 32-60 models.

en - Translation of the original instructions