EWIssueTracker captures the trend charts at the proper point in time to show the issue, and connects the diagnostician's comments.
The data tree groups the issues and their related trend
lines, and the comment box at the bottom allows for
extensive notes by the engineers and technicians involved in
resolving the issue.
EWIssueTracker is an integrated part of EWViewer that tracks
problems or concerns from their identification, through
categorization and prioritization, and finally to resolution and verification.
It gives you a task management system directly within EnergyWitness™
that captures operational issues and allows multiple engineers and technicians to work together and
resolve problems, so your facility runs as effectively and energy
efficiently as possible.
You See a Problem? Track It!
EWViewer allows your facility engineers to quickly monitor every point of control under their management. When they
uncover a problem or potential problem, what then? EWIssueTracker
is always just a click away.
Resolving issues is not a single-person task, nor is it a
one-step process. EWIssueTracker makes the details of each
operational issue available to be shared by the entire team of
people involvedfacility managers,
energy engineers, control engineers, building and zone managers, and technicians. They each can
see user comments, trend charts, and equipment information that has been identified
as relevant to the issue.
(Of course, access and update privileges are controlled by
A typical issue workflow goes something like this: when your
diagnostician or engineer spots a problem they can immediately capture it
with as many facts as are known right thenjust right-click on the
chart and create a new issue. More
information can be added later as you investigate further. The issue is tied to the
specific trend lines and point in time where it was noticedno need
to search for the operational data associated with the issue.
When you add additional comments later, each has its own time stamp
to easily track progress.
Once captured, the issue should be categorized based on its impact
to operations and cost.
All the information collected so far, and the expertise of the
diagnostician and engineers, is used to develop a plan for
resolving each issue and prioritizing the complete list of outstanding issues.
They can be assigned to the appropriate
personnel to take action, whether it be a new control setting,
replacement of a sensor, or much larger design and construction
effort. The more comments added along the way, the better documented
the issue and its resolution will be. When complete, you can verify the results
immediately through EnergyWitness—both ensuring the change had the
desired effect and that no unintended side effects occurred.
Assuming all is well, you circle back to continue the diagnostics or
ongoing monitoring process.
It's common for a site to identify
dozens, or even hundreds, of previously unknown issues with EnergyWitness when they get
their first real look at how the systems operatewe see it all
the time. (Not that surprising, really, when you go from seeing 2%
of the data to seeing 100%.) For this reason we strongly suggest an
in-depth diagnostics program as one
of the very first steps once EnergyWitness is installed. You'll find
everything from improperly calibrated sensors to engineering design
After a preliminary diagnostics program with EnergyWitness, a sample
might look like this:
Hospital Chiller Plant Preliminary Investigation Summary
||Financial Benefit of
|CW set point adjust every 10 minutes
causing CW & CHW systems to hunt.
||Cost of operations, Equipment life
||Straightforward change to BAS will pay for
itself very quickly.
||Cooling tower fans (all) controlled in
||Inadequate number control points & control
||Cost of operations, Equipment life
||Each pump will need own control points
added so that flow can be controlled.
||Eligible for rebate with significant energy
||Although systems may be new, they do not
seem to take advantage of high CW delta T for increased
chiller efficiencies and reduced pumping rate.
||Cost of operations (significant)
||More effort required to determine savings
benefit as costs could be high.
||Secondary CHW system calculates as more
(61) tonnage than out of the chillers/Abs.
||Cost of operations
||How can there be more cooling capacity used
by the building than generated by the cooling plant?
Want to See what else EnergyWitness can Uncover?
If the idea of being able to find and track various facility
problems you didn't know you had (and they're in there), and reducing your energy bills as
a result is appealing to you, please contact us to arrange a
personal demonstration. Give us a call at 617-744-1091, or send an
e-mail to firstname.lastname@example.org.