External Sensors; Communication Bus; Wireless Module; Automatic Two-Pump Operation - Xylem Bell & Gossett ecocirc XL Serie Manual De Instrucciones

Motor running
Fault present Not possible

5.2.9 External sensors

The pump can be equipped with a differential pressure sensor and a
temperature sensor according to the following table:
Sensor description Type
Differential pressure 15 PSI
sensor 4-20mA
30 PSI
Absolute pressure
sensors 4-20 mA
Temperature sensor KTY83
Pressure sensor setup — single phase pumps
1. Install differential pressure sensor on the pipe
2. Connect wires at terminals 9 and 10. See Figure 4 on page 8.
3. Power the pump on.
4. Upon startup, the pump detects the sensor and displays the setup
menu.
5. Select the right sensor model and confirm the selection using the
parameter button (3). See User interface
6. The pump will run through the startup sequence and automatically
start working in constant pressure mode. The sensors must be wired
to terminals 15, 16, 17, & 18.
7. The setpoint can be changed using the settings button (5). See
interface on page 9.
Pressure sensor setup — three phase pumps
Two absolute pressure sensors are factory provided to be installed on
the pump flange pressure ports. The sensors must be installed to allow
for precise pump operation in constant and proportional pressure
mode. In case of sensor failure, the pump will display the correspond-
ing alarm code (see par. 8.2) and will continue to operate with limited
precision using pressure estimation.
External temperature sensor setup
The external temperature sensor setup and related control modes are
available only through RS-485 or wireless module connection.
For details refer to the electronic drive manual on www.bellgos-
sett.com
NOTICE:
The Sensor Cables shall not exceed 65 ft.

5.2.10 Communication bus

The pumps have two built-in RS-485 communication channels.
Single phase pumps — One channel is available as standard (terminals
15-16-17), while the second one is enabled only with optional RS-485
or wireless module (terminals 18–19–20). See Figure 6 on page 8.
Three phase pumps — One channel is available as standard (terminals
5-6-7), while the second one is enabled only with optional RS-485 or
wireless module (terminals 8-9-10). See Figure 7 on page 8.
The pump can communicate with external BMS systems via Modbus or
BACnet protocol. For a complete description of the protocols, refer to
the electronic drive manual at www.bellgossett.com.
NOTICE:
When remote control is active, the set points and control modes are
managed only through communication channels and cannot be
changed via the user interface. The displayed quantity and unit of
measurement remain active on the user interface.

5.2.11 Wireless module

The wireless module is an optional module, to be coupled with the
ecocircXL circulators. When correctly configured, it generates a wire-
ecocirc ® XL INSTRUCTION MANUAL
Motor stopped
Relay 1 Closed (24-25
short circuit)
Relay 2 Open (22-23
open circuit)
Terminals
1–Phase Pump 3–Phase Pump
9 - 10
— —
13 - 14 11 - 12
on page 9.
less network accessible by a mobile device, tablet or a personal com-
puter. See wireless module instructions manual for details at www.bell-
gossett.com.

5.2.12 Automatic two-pump operation

Backup operation (bcup)
Only the lead pump runs. The second pump starts in case of failure of
the lead pump.
Alternate operation (alte)
Only one pump runs at a time. The working time is switched every 24
hours so that workload is balanced between both pumps. The second
pump is started immediately in case of failure of the lead pump.
Automatic parallel operation (para)
—
Both pumps run simultaneously at the same set point. Only when the
constant pressure mode is selected (for details see section 5.2.1), the
17-18
lead pump determines the behavior of the full system and is able to
15-16
optimize the performance. To guarantee the required performance
with the minimum power consumption, the lead pump starts or stops
the lag (second) pump to satisfy system requirement of flow and head.
NOTE: The automatic optimization works correctly on most installa-
tions. In the case of unstable running, switch the pump operation to
"forced parallel operation" (forc).
Forced parallel operation (forc)
Both pumps run simultaneously with the same set point. The master
pump determines the behavior of the full system.

6 System Setup and Operation

User
CAUTION:
Always wear protective gloves when handling the pumps and
motor. When pumping hot liquids, the pump and its parts
may exceed 104°F (40°C).
NOTICE:
The pump must not run dry as this can damage the bearings. Fill the
system correctly with liquid and vent the air before first start-up
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
9.
1. Switch off the pump.
Wait until the power indicator light turns off.
2. Switch on the pump.
3. When the display shows COMM, press the parameter button (3) to
access the communication menu.
6 System Setup and Operation
User interface on page
11