Xylem Bell & Gossett Ecocirc XL Installation, Operation And Maintenance Manual page 13

• Switch off power supply to the pump.
• Open the start/stop contact.
• Send stop command through the communication bus.
6.2.1 Automatic air venting procedure
At each power-on of the pump unit, an automatic air venting proce-
dure is executed. During this phase, the user interface displays "deg"
(degassing) and a count-down begins until the completion of the pro-
cedure.
The air venting procedure can be recalled or skipped:
• Manually by pressing simultaneously the two buttons (5). See
interface (page 8). The feature will remain disabled until power to
pump is disconnected.
The procedure can be permanently enabled or disabled by:
• Manually by pressing simultaneously the two buttons (5) for at
least 10 seconds. See User interface
• Via communication bus. See the electronic drive manual on
www.bellgossett.com.
6.2.2 Twin pump configuration setup
The circulators are configured as single units by factory default. To acti-
vate the 2–pump functions, follow the procedure below only on one of
the two units. The other unit will be auto configured. The working
modes are described in Automatic two-pump operation
Activate automatic two-pump operation
6.2.3 Activate automatic two-pump operation
Once the communication cable is connected, configure only the "lead"
pump. The twin pump submenu for this configuration is available at
each power-on, when the drive is displaying SING (which stands for
"Single Pump).
The following procedure must be executed during the start-up phase
of the pump.
1. Enter the two-pump sub menu when the display is showing
TWMA (two-pump master) or TWSL (two-pump slave).
2. Select the applicable two-pump operation.
• bcup = backup operation
• alte = alternative operation
• para = automatic parallel operation
• forc = forced parallel operation
3. Push the parameter button to activate the new setting.
The second pump is configured by the lead pump.
7 Maintenance
Precaution
Electrical Hazard:
Disconnect and lock out electrical power before installing or
servicing the unit.
Wait 2 minutes before opening the conduit box.
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).
• Maintenance and service must be performed by skilled
and qualified personnel only.
• Observe accident prevention regulations in force.
• Use suitable equipment and apply personal protection.
• Risk of property damage, serious personal injury or
death. You must repair or replace the pump if corrosion
or leakage is found.
8 Troubleshooting
Introduction
See User interface (page 8).
2
Switch off the pump for 5 minutes and then power on. If the problem persists, contact service.
ecocirc ® XL Installation, Operation, and Maintenance manual
User
(page 8). Or
(page 9) and
(page 11).
• In case of any alarm that allows the pump to continue running, the
display shows a blinking alarm code and the last quantity select-
ed, while the status indicator (8) becomes orange.
• In case of a failure that stops the pump, the display shows the er-
ror code permanently and the status indicator (8) becomes red
8.1 Periodic inspection
Bell & Gossett ecocircXL circulators are designed to provide years of
trouble-free service. It is recommended that periodic inspections be
made to check for potential problems with the pump. If any leakage or
evidence of leakage is present, repair or replace the unit.
8.2 Display messages
Table 1: Default
Operating LEDs / Display
Power On
All LEDs and display On
Status Green light
Remote On
Table 2: Fault messages
Operating LEDs / Dis- Cause
play
Power Off Pump is not connected
or is incorrectly con-
nected
Power failure
Status light Orange Alarm for system prob-
lem
Status light Red Pump failure
Remote Off Remote communica-
tion is deactivated
8.3 Fault and error codes (Red LED)
Error code Cause
E01 Internal communication lost
E02 High motor current
E03 DC Bus overvoltage
E04 Motor stall
E05 Data memory corrupted
E06 Voltage supply out of operating
range
7 Maintenance
Cause
Pump powered
Start-up of the pump
Pump is working properly
Remote communication is activated
Solution
Check connection
Check power supply
and circuit breaker
Check the displayed
alarm code and find
cause from table 8.4.
Check the displayed
error code and find the
cause from table 8.3.
If the communication
does not work, check
the connection and the
configuration parame-
ters for communication
on the external con-
troller.
Solution
Restart the pump
Restart the pump
Indicates excessive
power through the
pump. Confirm system
setup, verify correct
position and opera-
tion of check valves.
Restart the pump
Restart the pump
Check the electrical
system voltage and
wiring connection.
2
2
2
2
11