molded neoprene, held in place with stainless steel clamps. [Provide an
offset head.]
2.7.1
Disposal Cone
Fabricate with approximate diameters of 450 mm 18 inches inside unit and
200 mm 8 inches at throat. Provide neoprene silver trap at throat and
water swirl inlet in cone to create counterclockwise rotation. Secure cone
to disposer with flexible connector sleeve and stainless steel clamps.
2.7.2
Motor
Mount with 75 mm 3 inch minimum clearance above floor. Provide with
magnetic starter with overload and under-voltage protection timer for 0 to
5 minutes, panel cover interlock, fused disconnect, prewired solenoid,
vacuum breaker, two water flow controls, and automatic reversing action.
Rotor shall be cast alloy carrying rigid impact bars and fixed directly
onto motor shaft. Provide motors of the following minimum sizes on
disposals at locations listed:
a.
Pot and pan sink:
3.75 kw 5 horsepower
b.
Soiled dishtable:
5.60 kw 7.5 horsepower.
2.7.3
Disposal Control Center
Include time delay relay, start and stop buttons, panel cover interlock
with fused safety disconnect switch and circuit breaker, door locking
feature that prevents opening door with power on, full voltage magnetic
starter with both overload and under-voltage protection, and solenoid
valve. Control center shall be waterproof and fabricated using stainless
steel and in accord with NEMA ICS 6. Controls shall conform to NEMA ICS 2.
2.8
HOODS
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NOTE: Seismic restraints for kitchen hoods shall
conform to Guidelines for Seismic Restraints of
Kitchen Equipment (SMACNA Los Angeles Chapter). See
Appendix 1 of SMACNA Fabrication Guidelines.
Include requirement in seismic zones 3 and 4.
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Conform to NFPA 96 and UL 710. Conform to SMACNA HVAC Duct Const Stds.
[Provide seismic restraints in accord with SMACNA KEFG.] The hood shall
not vary from design listing of air requirements or static pressure by more
than five percent. Fabricate from 1.2 mm thick 18 gage stainless steel.
Run electrical wiring in conduit or raceways. When total hood length is
more than 3600 mm 12 feet long, provide hoods individually complete in all
respects, of approximately equal length less than 3600 mm 12 feet long, and
mounted end to end.
2.8.1
Centrifugal Grease-Extracting Hoods
Fabricate in factory. Provide high-velocity type with average throat inlet
air velocity of [5] [_____] mps [1,000] [_____] fpm and duct velocity of
[9] [_____] mps [1,800] [_____] fpm. Provide air inlet above and parallel
to equipment for full length of hood. Provide hood which will remove 95
percent of extraneous matter in air with non-removable grease-extracting
SECTION 11400N
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