(x) Supply, Return and Exhaust Air Diffusers and Registers
(y) Unit Heaters
(z) Vibration Isolators
(aa) Water Flow Measuring Devices
(bb) Other Schedules As Required
1.4.3.2 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.
system shall be identified on the equipment schedule showing the
percent glycol by volume of the circulating fluid for equipment de-
rating purposes.
1.4.4 PIPING DRAWINGS
(a) Avoid piping routing 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.
(e) All HVAC piping 150 mm (6 inch) diameter and larger shall be shown
in double line on all drawings.
1.4.5 DUCTWORK DRAWINGS
1.4.5.1 All ductwork, without any exceptions, shall be shown in double
line. The minimum duct size shall be 200 mm x 150 mm (8 inch x 6 inch).
systems shall be shown on the drawings. Flow diagrams shall show the Cu
M/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.
1.4.5.3 Manual air volume balancing devices shall be provided in 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.
HVAC DESIGN MANUAL
1-21
GENERAL REQUIREMENTS
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