CEMP-E
TI 811-12
18 August 1998
a. Implementation of UMCS in existing facilities requires that modifications to the mechanical and
electrical equipment (including controls and instrumentation) be shown in accordance with the
requirements of Chapter 11. Sketches made during the design survey will identify the following items:
(1)
Ductwork additions or changes.
(2)
Piping additions or changes.
(3)
Additional fans or pumps, as required.
(4)
Disconnect switches.
(5)
Electric service changes or new service requirements.
(6)
Locations of new sensing lines, thermowells, and other instrumentation.
(7)
Starter control stations.
b. Field data will be detailed enough to be used for the cost estimate, as well as for preparation of
design and contract documents for those buildings and systems selected for UMCS. The field data will
identify existing equipment that will remain, be removed, or replaced with new equipment.
15. ENERGY SAVINGS.
a. Using the applications programs selected for each system, calculations will be performed to
obtain the difference between present energy consumption and future energy consumption.
b. The method of calculating energy savings for each application program will be in accordance
with current guidelines.
c. The energy savings will be converted to equivalent MBTUs (MJoules) for use in the economic
analysis.
d. Energy savings for the applications programs selected for each system will be entered in Table
e. Electrical demand savings will be calculated in accordance with current guidelines and entered in
16. COST AVOIDANCE. Undetected failure of equipment and systems often results in significant cost
to an installation. Examples include the cost of food spoilage following an undetected failure of a
refrigerated storage locker, excessive water and sewer utility costs following the undetected rupture of a
water distribution main, or the cost of repairing water and other damage to an unoccupied building
following failure of its freeze-protection heating systems. Some UMCS functions can result in cost
avoidance by providing rapid detection of equipment failures or other abnormal conditions. The expected
value of cost avoidance is site-specific and will be reviewed with the installation. UMCS applications
which should be evaluated for cost avoidance benefits include the following. Cost avoidance savings will
be entered in Table 12-2 at the end of this chapter.
a. Monitoring cold storage warehouses
b. Monitoring refrigeration units.
c.
Monitoring water distribution systems.
d. Monitoring electrical systems.
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