d) The equipment schedule should show information that
the vendor needs to provide instrumentation with properly
calibrated ranges; to select proper control valves and associated
actuators; to adjust control system devices for sequencing
operations; to configure controller parameters, such as setpoints
and schedules; and to set the control system time clocks.
Indicate control valve flow coefficient (Cv) and pressure drop
for every control valve.
indicated. Provide space, access, lighting, and appropriate
f) Provide electrical surge protection on HVAC control
devices as required to protect the DDC and EMCS.
g) Each control system shall have a sequence of
operation. The sequence of operation should be shown on drawings
adjacent to the schematic. After a standard has been adopted by
industry, provide graphical schematics for sequence of operation
of DDC systems on drawings.
h) Provide an input and output schedule for DDC
systems. Schedule shall include a description of the device,
type of point, and any special requirements.
should be specified and should detail how the vendor will inspect
calibrate, adjust, commission, and fine tune each HVAC control
system. Refer to par. 8.6.
j) Project specifications should specify the
coordination of HVAC system balancing with the temperature
balancing be completed, the minimum damper positions be set, and
the balancing report be issued before the control systems are
k) Project specifications should list submittal
requirements for the vendor.
poor performance of most systems throughout the Navy's shore
facilities. This is due primarily to poor working conditions
brought about by lack of design detail on drawings to ensure an
installation with adequate accessibility for ease of operation
and maintenance. Equally important are drawings that clearly
represent the intended system arrangement and describe system