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

Page: 13 / 52

• 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 User
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 (page 8). Or
• 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 (page 9) and
Activate automatic two-pump operation (page 11).
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).
• 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 Cause
Power On Pump powered
All LEDs and display On Start-up of the pump
Status Green light Pump is working properly
Remote On Remote communication is activated
Table 2: Fault messages
Operating LEDs / Dis-
play
Cause Solution
Power Off Pump is not connected
or is incorrectly con-
nected
Check connection
Power failure Check power supply
and circuit breaker
Status light Orange Alarm for system prob-
lem
Check the displayed
alarm code and find
cause from table 8.4.
Status light Red Pump failure Check the displayed
error code and find the
cause from table 8.3.
Remote Off Remote communica-
tion is deactivated
If the communication
does not work, check
the connection and the
configuration parame-
ters for communication
on the external con-
troller.
8.3 Fault and error codes (Red LED)
Error code Cause Solution
E01 Internal communication lost Restart the pump
2
E02 High motor current Restart the pump
2
E03 DC Bus overvoltage Indicates excessive
power through the
pump. Confirm system
setup, verify correct
position and opera-
tion of check valves.
E04 Motor stall Restart the pump
2
E05 Data memory corrupted Restart the pump
2
E06 Voltage supply out of operating
range
Check the electrical
system voltage and
wiring connection.
2
Switch off the pump for 5 minutes and then power on. If the problem persists, contact service.
7 Maintenance
ecocirc ® XL Installation, Operation, and Maintenance manual 11