Complete Compiled Specification.pdf - Peck Ormsby Construction

devices.
4. Panel Wiring: Run all wiring within enclosed distribution gutters (similar to
Panduit). all wiring entering or leaving the panel shall terminate on numbered
terminal strips. All wiring entering or leaving the panel shall be tagged with a
permanent, identifying tag. All wire and tube identification numbers shall be
designated on the control drawings. All wiring shall be color coded and the color
shall not be changed between the terminal strip and the end destination of that
wire.
PART 4- SEQUENCE OF OPERATION
4.1 GENERAL OPERATION
A. Control Programs: The control programs to achieve the sequence of operation shall reside
in the field controller. These controllers shall be capable of standalone operation, such that
if communication with the network level controller is lost or disrupted, the sequence of
operation will continue to operate. Global functions such as Scheduling, Optimal
Start/Stop, and Outside Air Temperature Reset may reside on the Global Controller.
B. Optimal Start/Stop is incorporated into the District system-wide energy management
program. Any time a school experiences and school wide change of state (i.e. unoccupiedoccupied
or power-up after loss of electrical power), the EMS shall initiate a school wide
optimal start-up procedure so as to minimize the electrical demand based on a 15-minute
sliding window.
C. Human Machine Interface (HMI): The HMI shall be a PC based graphical package. User's
privileges determine whether setpoints and parameters can be modified or outputs
manually overridden.
1. This graphical package shall contain graphical representations of the mechanical
equipment.
2. The graphics shall display all the digital and analog points as listed in the points
listed for each mechanical system.
3. Digital output points shall have the capability to be manually overridden on and off
from the HMI. These overrides may be timed, until or forever. Manual overrides
cannot override any safety conditions.
4. Analog output points shall have the capability to be manually overridden on and
off from the HMI. These overrides may be timed, until or forever. Manual overrides
cannot override any safety conditions.
5. All setpoints, parameters and calculated values shall be displayed and adjustable
from the HMI.
6. All setpoints and parameters defined as (adjustable) shall be adjustable from the
HMI.
4.2 VAV WITH REHEAT
A. Each variable air volume box consists of a room sensor, a supply damper with an over
the shaft Direct Digital Controller, modulating integral damper motor with quick release,
integral differential pressure sensor, Hot Water Reheat Coil, and a Flo-Cross 2 X 12
points averaging and signal amplifying air flow sensor. The temperature control shall
utilize Proportional, Integral and Derivative (PID) algorithms. Each VAV box shall include
maximum and minimum (cooling and heating) flow settings (CFM), Morning Warm-
Up/Cool-Down, Energy Consumption, and Room Temperature Control. The VAV box
shall be controlled through the BAS as follows:
1. Unoccupied Mode
a. When the central air handling unit is off, the BAS shall command the
SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDITION
AUTOMATIC TEMPERATURE CONTROLS 15900-10