CEMP-E
TI 811-12
18 August 1998
e. Site-specific control and monitoring schematic diagrams for each type of system being connected
to the UMCS with all sensor locations identified. Existing control devices being reused or replaced will be
shown as existing devices.
f. UMCS interface control diagrams showing all interface devices such as relays, controllers, and
sensors between existing equipment and new UMCS field equipment.
g. The sequence of operation (including any necessary interlocks), database tables, building layout,
and control schematic diagrams for each system to be interfaced to UMCS.
h. Floor plans for each building showing the location of all UMCS equipment, mechanical and
electrical systems, instruments, and controls. The mechanical/electrical systems will be shown in
sufficient detail to make the equipment arrangement clear. Sources of electrical power will be shown and
noted as existing or new. Location of existing controls will be shown, including any item to be altered or
replaced. The location of field equipment panels and data transmission cable terminations will be shown.
i.
Equipment data, operating schedules and expected operating ranges.
j. Database tables with parameters such as the heating/cooling, occupied/unoccupied operating
and alarm setpoints, and all other parameters required for the contractor to complete the entry of data.
k. For flow and BTU calculations, system operating pressure, maximum and minimum temperatures
and flows, maximum allowable pressure drop for sensor elements, location of sensors, and size of
existing piping.
l. Building occupancy and equipment start-stop times including heating and cooling switch over
schedules.
m. Details for mounting each type of sensing and control device by the specific icon used.
Temperature sensors in ducts will be shown with the sensitive portion of the element installed in the
center of the duct cross section or located to sense the average temperature. Where necessary for
installation or service, access doors will be provided. Room sensors will be shown securely mounted to
the wall as shown in the applicable installation detail. Where located on exterior walls or walls adjacent to
unheated spaces, 1/4 inch insulating blocks will be shown. OA sensors will be shown suitably shielded.
Care will be taken to avoid locating OA sensors near exhaust or relief openings. Temperature sensors in
small diameter pipes will be mounted in piping elbows so that the entire element is in the normal fluid
flow. Stand off tees will not be used. Where sensor wells restrict fluid flow significantly, pipe sizes will be
increased to avoid restriction. Wells will be located where there is flow during all cycles of equipment
operation. Pressure sensing elements in pipes and pressure vessels will include pulsation dampeners
and siphons if required to protect the sensor from pulsations or extreme temperatures.
n. Required modifications to the existing mechanical and electrical equipment for implementing the
various programs (i.e. installation of disconnecting means, contactors, ductwork, piping, fan, pumps, and
controllers). Sensors installed on insulated pipes or ducts will accommodate the additional insulating
material thickness.
o. Identifications for each system or system component requiring nameplate or equipment tags to be
furnished by the UMCS contractor.
p. Routing of data transmission cables.
26. SPECIFICATIONS. The specifications required for a complete UMCS design will include CEGS
16935, all other appropriate CEGSs, and all requirements in the A/E Scope of Work.
27. CONSTRUCTION PERIOD. A typical UMCS construction period requires completion of numerous
interdependent activities including meetings, submittals, equipment installation and testing. The timely
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