18 August 1998
d. Identification of the following first costs for each system in each building: I/O point functions
hardware, instrumentation and controls, modifications of existing mechanical and electrical equipment,
and the associated maintenance costs for the first year.
e. Determination of the building or system ranking will be based on current guidelines (i.e., ranking
based on SIR) for the source of funding used for the project.
f. Determination of the project SIR or other payback requirements will be based on current
guidelines. If the entire UMCS does not meet these guidelines, buildings or systems with the lowest
ratios will be deleted. There may also be special cases where certain buildings are added to the UMCS
even though the ratios are below acceptable levels. In either case, a new determination based on the
revised project configuration will then be made to verify conformance with current guidelines. This may
result in revisions to the DD form 1391 reflecting changes to the project cost or scope.
20. DD FORM 1391 VALIDATION. The list of buildings and systems selected during the UMCS design
survey will be used by the designer to validate or amend the DD form 1391. The preliminary selection of
buildings for inclusion in an UMCS in the preparation of the DD form 1391 has been based on energy and
economic analysis for all systems in a building. The final design selection of systems for inclusion in
UMCS will be based on an analysis for individual systems within a building. Contract documents
prepared by the designer will be based on the buildings and systems included in the validated or
amended DD form 1391. A written description of changes to the scope or cost of the project will be
required in order to revise the DD form 1391 for final submittal.
21. CENTRAL STATION AND ISLAND STATIONS.
a. The Central Station and Island Station rooms will have sufficient space to accommodate the
UMCS computers, peripherals, associated equipment and accessories. All free standing equipment will
have at least 36 inches front and rear clearance for maintenance purposes. Figure 12-1 at the end of this
chapter illustrates a typical Central Station or Island Station layout. The final room size, architectural, and
structural requirements will be tailored to the quantity and type of equipment to be specified in the final
design. Central stations and/or Island Stations may benefit from raised floors for UMCS wiring
b. The electrical power service will be designed to furnish sufficient capacity to handle all the UMCS
equipment, including any additional air conditioning and lighting. An uninterruptible power supply will be
required for all Central Station and Island Station UMCS equipment in accordance with the requirements
of Chapter 2. A typical Central Station electrical single line diagram is shown in Figure 12-2 at the end of
c. Lighting design including size and placement of windows will be carefully planned. The Central
Station or Island Station equipment room will have a lighting level of approximately 50 footcandles with
task lighting as required. Lighting design shall consider and plan for elimination of workstation monitor
screen glare problems.
d. The HVAC system for the Central Station/Island Station equipment room will be designed to
provide year round occupied and unoccupied environmental conditions of 68 to 78 degrees F, 30 to 60
percent relative humidity. The sizing of the HVAC equipment will be based on the number of occupants,
lighting load, and heat rejection of the UMCS equipment. The designer will consider use of an
independent HVAC system if the Central/Island Station equipment room requires 24 hour occupancy and
the building in which it is located does not.
a. When sensors are to be located outdoors, suitable instrument shelters or sun shields will be
used, as applicable, to protect against wind, rain, solar effects, and radiation from nearby structures. For