Service Manual 32 – Contour 3 Series, Profiler & Advance – Approved Issue 5 Printed 2/13/2014 11:50:17 AM
6
BRIVIS
SERVICING
INSTRUCTIONS
No. 21
N-E5 Cooler Control Dump Delay Parameter.
Units affected:
All Version 3 Contours and Profiler coolers using N-E5 electronic controller.
Reason for change:
R&D have informed us of a change within the N-E5 service parameters. which has the potential to
cause a problem. This change has happened mid production and has affected the first 2020 units.
The problem has occurred to service parameter 01, which relates to the Dump Delay time. The
change is with the way the parameter is read. Usually the parameter unit was in single minutes, but
on the newer N-E5 controllers it has been changed to units of 10 minutes.
For example
- Normal setting was 60, meaning 60 minutes before the cooler would dump.
- New setting is 6, meaning 6 lots of 10 minutes which equals 60 minutes.
If service parameter 01 on the newer N-E5 is changed to 60 when we service these units, it
will then dump after 10 hours (60 x 10 minutes = 600 minutes). Vice Versa if Parameter 01 on
the first version N-E5 is set to 6, it will then dump after 6 minutes.
In both cases this will cause a fairly major upset with the units normal operation. We can trace the
individual controllers by their serial number. The first 2020 controllers have the dump delay setting
units in minutes, and the rest of the production controllers will all have the dump delay setting units
in lots of 10 minutes.
N-E5
Serial Numbers -
18764 020 0000 to 18764 020 2020
have the dump delay in single minutes.
N-E5
Serial Numbers -
18764 020 2021 and Beyond
will have the dump delay setting in lots of 10
minutes.
N-E5
- Version 9, 9a & 10 will have the dump delay setting in lots of 10 minutes.