06-06
26. Unit Heaters
27. Vibration Isolators
28. Water Flow Measuring Devices
29. Other Schedules as Required
B. Equipment performance and capacity data shall correspond to that
shown in the calculations, not a particular manufacturer's catalog
data, but the data shall be in the range of available manufactured
products.
C. Convertors, coils, pumps and chillers in glycol-water system shall be
identified on the equipment schedule showing the percent glycol by
volume of the circulating fluid for equipment de-rating purposes.
7.4 PIPING DRAWINGS
A. Avoid routing piping through rooms containing electrical or
communication equipment.
B. Branch piping serving each floor shall have shut-off valves at mains
to isolate branch.
C. Show sections or profiles of underground piping to show elevation
with respect to grade, roads and possible conflicting utilities,
including provision for draining and venting.
D. The quantity of rock excavation for HVAC work shall be shown on the
"MH" drawings.
7.5 DUCTWORK DRAWINGS
A. The minimum duct size shall be 203 mm x 152 mm (8" x 6").
B. Complete flow diagrams of the supply air, return air and exhaust air
systems shall be shown on the drawings. Flow diagrams shall show the
m3/min (CFM) required in all mains and major branches (such as
zone/floor) and the size of each main and major branch.
Flow
diagrams shall show and identify all air handling units, fans, and
other major components in the air system. These diagrams are to
facilitate checking and air balancing.
C. Manual air volume balancing devices shall be provided in applicable
supply, return and exhaust mains, branch mains and terminal branches.
Ceiling access panels are to be installed, where required, for access
to balancing devices.
Location of balancing devices shall be shown
on the contract drawings.
D. Dampers in room diffusers and registers shall be used only for minor
balancing requiring a maximum pressure drop of approximately 25 Pa
(0.10 inch of water gage). Registers and/or diffusers shall not be
located on main ducts or main branches, but on individual branch
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