Edwards nEXT730 - Bearing Run in Mode; Service Counter Reset

B8J200880_E - Service
Page 121
Table 33 Service tool kits
Service tool kit
Item number
Bearing exchange tool kit nEXT730/930
B8J200845
Bearing exchange tool kit nEXT1230
B8M200845
Table 34 Service kits
Service kit
Item number
Bearing kit nEXT730/930
B8J200827
Bearing kit nEXT1230
B8M200827
12.4 Bearing run in mode
Bearing run in mode (BRIM) is a start-up sequence for the pump designed to
precondition the bearing to optimise bearing life. The pump goes through a number of
speed steps before reaching full speed.
The BRIM process last around 4.3 hours and the LED indicates when this is running.
BRIM mode can be cancelled by sending a stop signal and then start signal to a pump
currently running the BRIM process. This is NOT recommended and may invalidate
the warranty.
BRIM mode is either triggered:
▪ automatically by the pump
▪ manually through nST2
▪ manually through the TIC, or
▪ by pressing both speed adjustment push buttons (located behind the service cover)
simultaneously for 2s on the pump.
Table 35 Bearing LED
LED is not lit while pump is powered on
No bearing conditioning required
LED is flashing 0.25 s ON and 0.75 s OFF
Pump has been stored for more than 12 months,
BRIM is required and will start on the next pump
start
LED is permanently ON
BRIM is running
LED is flashing 0.25 s ON and 0.25 s OFF
Pump has been stored for more than 3 years,
bearing replacement is required
12.4.1 Service counter reset
After completing a bearing change, reset the service interval in order to schedule the
next service and reset the status LED. The service counter reset is described in the
manual for the service tool kit.