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Hewlett Packard
Paramus, NJ
Installation
of an Energy Management and Controls System (EMCS) for the facilities
temperature control system using Teletrol System, Inc. equipment.
The
EMCS is comprised of 1 Integrator 486 controller, 5 AHC186 controllers, 5
MINC controllers, 1 Integrator CS with ValuTRAC controllers and 85
TSC-LE-VAV-AF controllers comprising of over 680 physical points
controlling, but not limited to, the following subsystems.
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Chilled
Water System – Maintaining the facilities chilled water
temperature by sequencing the three chillers. The controller cycles
the chiller compressors, modulates the speed of the chillers, starts
and stop pumps, and monitors the chilled, condenser and cooling tower
water temperatures, coolant temperature and pressure, oil pressure,
suction and discharge pressures and the exhaust temperature.
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Air
Handling Units – Controlling economizer dampers, heating coil
valves, cooling coil valves and variable speed drives on 8 Air
handling units.
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Hot
Water System – Cycles the boilers and associates pumps to maintain
the perimeter radiation and reheat systems.
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VAV
Boxes – A network of TSC-LE-VAV-AF controllers that modulate
the volume damper and perimeter heating control valve to maintain the
desired space temperature.
Summer
and Winter changeover is automatically executed by the EMCS by referring
to the outside air temperature and humidity. The air handlers are cycled
via a time schedule to maintain either a constant discharge temperature
for the VAV systems or an adjustable space temperature.
The
graphical interface was developed using Teletrol Systems, Inc., MCP
software. From the graphical interface the user can get instantaneous
point data and have full control through the following graphics:
Optima Controls, Ltd. configured and programmed this system using
Teletrol Systems, Inc. Management
Communication Program (MCP). The
functional software is written in "C" language that allows for
complex programs to be written in a user understandable manner.
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