System Setup And Operation; Change The Communication Parameters - Lowara ecocirc XL Original Instructions Manual

cation channels and cannot be changed via the user
interface. The displayed quantity and unit of meas-
urement remain active on the user interface.
5.2.12 Automatic twin pump operation
(available only on ecocirc XLplus)
Backup operation (bcup / bup
Only the master pump runs. The second pump starts
in case of failure of the master pump.
Alternate operation (alte / alt
Only one pump runs at the time. The working time is
switched every 24 hours so that workload is bal-
anced between both pumps. The second pump is
started immediately in case of failure.
Automatic parallel operation (para / par
Both pumps run simultaneously with the same set
point. Only when the constant pressure mode is se-
lected (for details see section 5.2.1), the master
pump determines the behavior of the full system and
is able to optimize the performance. To guarantee
the required performance with the minimum power
consumption, the master pump starts or stops the
second pump depending on the head and flow that
is required.
• NOTE:The automatic optimization works correct-
ly on most of the installations. In case of unstable
running, switch the pump operation to "forced
parallel operation" (forc / for
Forced parallel operation (forc / for
Both pumps run simultaneously with the same set
point. The master pump determines the behavior of
the full system.

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. Fail-
ure to do so can cause liquid to freeze and dam-
age the pump.
• The sum of the pressure on the suction side (wa-
ter mains, gravity tank) and the maximum pres-
18
on three digit display of models 25-40, 25-60, 32-40, 32-60
19
not described in these instructions, see Communication manual on www.lowara.com
20
requires the installation of Wireless module on the pump
21
on three digit display of models 25–40, 25–60, 32–40, 32–60
22
not available on 25–40, 25–60, 32–40, 32–60 models.
23
Commmunication features and optional modules are available only for ecocirc XLplus models.
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)
18
)
18
)
18
).
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sure generated by the pump must not exceed the
maximum working pressure that is allowed (nom-
inal pressure PN) for the pump.
• Do not use the pump if cavitation occurs. Cavita-
tion can damage the internal components.
6.1 Configure the pump settings
Change the pump settings using one of the following
approaches:
• User interface
19
• Bus communication
XLplus)
• Wireless communication
ecocirc XLplus)
6.1.1 Change the communication
parameters
Change pump communication parameters. See
ure 13 .
1. Switch off the pump.
Wait until the power indicator switch-off before
continuing.
2. Switch on the pump.
3. When the display shows comm (com)
the parameter button (3) to enter inside the
communication menu.
4. Select one of the four values with setting button.
21
• baud (bdr) = baud rate setup (available
values 4.8 - 9.6 - 14.4 - 19.2 - 38.4 - 56.0 -
57.6 kbps)
22
• prot = communication protocol (available
protocols "mod" = Modbus; "bac" = BACnet)
21
• addr (add) = address setup (available ad-
dress 1÷247 for Modbus and 0÷127 for BAC-
net)
21
• modu (mdl) = optional module setup
(none = no module; wifi = Wireless module;
485 = RS-485 module)
5. Press the parameter button to enter the subme-
nu
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 with-
out confirmation are restored at 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
management system) or other devices through the
en - Original instructions
(available only on ecocirc
20
(available only on
Fig-
21
, press
23
(Building
25