system, including temperature sensor error, wiring error, A/D
conversion, and display, shall be 1 degree F or less.
[c.
The existing DDC system was manufactured by [_____].]
[d.
Provide a DDC system with a new workstation and workstation
software. If working with an existing DDC system of the same
manufacturer, upgrade the existing workstation software with the
manufacturers' latest software version.]
1.5.1
1.5.1.1
Control System Schematic
Provide control system schematic that includes the following:
a.
Location of each input and output device
b. Flow diagram of each HVAC component, for instance flow through
coils, fans, dampers
c. Name or symbol for each component such as V-1, DM-2, and T-1
for a valve, damper motor, and temperature sensor, respectively
d.
Setpoints
e.
Sensor range
f.
Actuator range
g.
Valve and damper schedules and normal position
h.
Switch points on input switches
i.
Written sequence of operation for each schematic
j. Schedule identifying each sensor and controlled device with
the following information:
(1) LAN and Software point name with send and receive address if
applicable
(2)
Point type (AO, AI, DO, DI)
(3)
Point range
(4)
Digital controller number for each point
**************************************************************************
NOTE: If DDC system consists of two levels of local
area network (LAN), identify controllers on the sub
LAN by a two number code. The first number will be
that of the controller on the higher level LAN that
acts as the lower level LAN network controller. The
second number will be the number of the lower level
controller. If controllers reside in multiple
buildings, add building number to the LAN identifier.
**************************************************************************
SECTION 15910N
Page 16
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