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 ATTACHMENT B
CHERRY POINT MECHANICAL STANDARDS
Date 12/20/99
Point of contact at Cherry Point regarding these standards is Robert Lawrence at
(252)466-4706 or Paul Cline at (252)466 -4707.
1. HVAC STANDARDS:
a. Keep mechanical equipment (AHU's, EF's, etc.) off of roofs if at all possible. Mechanical
designs must consider the fragility of roofs. Install mechanical equipment at ground level and
screened from view. Discuss alternatives with architect.
b. If equipment is installed on roofs, use equipment manufacturers standard curbs.
c. Avoid routing pipes above lay -in ceilings, especially low temperature pipes (i.e., chilled
water) subject to condensation/dripping.
d. Install blow down valves on all strainers.
e. Air handling unit filter access doors should be specified as hinged and lockable with
quarter-turn or half -turn thumb screws. Do not specify or approve access panels that are
unhinged and/or retained by sheet metal screws.
f. Require contractors to provide maintenance with a listing of HVAC filters for each piece of
equipment along with their dimensions (width, height, thickness) and types (permanent,
washable, throwaway, etc.). Also, require filter information to be clearly displayed on the
outside of each piece of equipment.
g. Do not specify mineral fiber on flexible unicellular insulation on chilled water pipes. Use
rigid insulation on chilled water pipes where such pipes are subject to being stepped on or
damaged. Cellular glass insulation is preferred. Metal jacket should be utilized for exterior or
high abuse areas.
h. Do not use plastic pre-insulated pipe for buried dual temperature water distribution. Use
pre-insulated copper pipe for such applications.
i. Provide separa te mechanical and electrical rooms with exterior, ground level entrances, if
possible.
j. Shop air compressors should not be installed within HVAC mechanical rooms as occupant
access is prohibited by base maintenance to those spaces.
k. All equipment l ocated within or outside mechanical rooms should be accessible for
maintenance (including coils) and for removal with minimum disruption to occupants.
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