specs

not acceptable.
5. Bearings shall be corrosion resistant, molded synthetic sleeve type turning in an extruded
hole in the damper frame. Axles shall be ½” (13) plated steel, hexagonal shaped and
positively locked into the damper blade (round axles are not acceptable).
6. Linkage shall be concealed out of airstream, within the damper frame to reduce pressure
drop and noise and lessen the need for maintenance.
7. Submittals must include leakage, maximum airflow and maximum pressure ratings based on
AMCA Publication 500. Damper leakage shall not exceed 10 cfm per square foot at 4” sp.
8. Damper shall be equal to Ruskin model CD36.
L. Electronic / Electric Damper Actuators:
1. Manufactured, brand labeled or distributed by BELIMO or equal.
2. Size for torque required for damper seal at load conditions.
3. Coupling: V-bolt dual nut clamp with a V-shaped, toothed cradle.
4. Mounting: Actuators shall be capable of being mechanically and electrically paralleled to
increase torque if required.
5. Overload Protection: Electronic overload or digital rotation-sensing circuitry without the use
of end switches to prevent any damage to the actuator during a stall condition.
6. Fail-Safe Operation: Mechanical, spring-return mechanism
7. Power Requirements (Spring Return): 24 V ac, maximum 10 VA at 24-V ac or 8 W at 24-V
dc.
8. Temperature Rating: -22 to +122ºF
9. Housing: Minimum requirement NEMA type 2 / IP54 mounted in any orientation.
10. Agency Listing: ISO 9001, cULus, and CSA C22.2 No. 24-93.
11. The manufacturer shall warrant all components for a period of 5 years from the date of
production, with the first two years unconditional.
2.10 FANS
A. Furnish and install the fans as scheduled on drawings.
B. Rated and labeled by AMCA.
C. Switched as shown on Electrical drawings.
D. Equipped with manual reset firestats.
E. Furnish fans pre-wired thermal disconnect switches and 16" high factory curb or height as
scheduled. The motorized dampers shall be shipped pre-wired from the factory or field wired by
the mechanical contractor.
F. Direct drive fans shall be furnished with SCR variable speed controllers factory wired internal to
the fan.
G. Fans to be as manufactured by Cook, Acme, or Greenheck.
2.11 ROOFTOP UNIT
A. Units and curbs shall be furnished as specified on the drawings.
B. Install heating and cooling units as scheduled and detailed. Units shall be factory assembled
and tested complete and ready for operation, except for the economizer components (and/or
outside air intakes) which shall be field installed by the mechanical contractor.
C. Each unit shall be provided with 16" high 14 gauge galvanized steel fabricated roof-mounting
frame. Curbs formed as detailed with corners riveted or welded as required for strength. Curbs
shall be self-supporting and shall be sloped to match the roof slope and maintain the units level.
Curbs shall be the acoustic type shown on the drawings (factory installed acoustic fill) as
manufactured by ThyBar.
Cinemark 15500 - 7 Heating, Ventilating and Air Conditioning
South Napa Century Center XD 12 EnviroDesign, Inc., Bid Issue 7-7-11