Provide insulated floors under each walk-in
refrigerator and freezer as if each unit were a
freezer. Material for floors and surrounding areas
should be quarry tile or other suitable material.
**************************************************************************
Provide walk-in units manufactured for food service use conforming to NSF 7
and UL 471. Floorless, with insulated floor screeds.
2.11.1
Panel Construction
Interchangeable, 1200 mm 4 feet maximum width, 100 mm 4 inch thick, filled
with insulation. Provide preformed corner panels extending not less than
300 mm 12 inches in each direction. Panels to have tongue and groove edges
or flush joints with double seal serrated neoprene rubber gaskets to assure
air and vapor tight joints. [Provide panels for separating sections.]
a.
Insulation: 100 mm 4 inch minimum foamed-in-place polyurethane
with manufacturer's rated "K" factor of not more than 0.15, free
rise density of not less than 27 kg per cu meter 1.7 pounds per
cubic foot, or in-place density of not less than 32 kg per cu meter
2 pounds per cubic foot. Provide floor screeds with minimum of
63 mm 2 1/2 inches of foamed insulation.
b.
Closures: The exposed exterior of the walk-in unit shall be
closed to adjacent walls and ceiling with panels of same material
as used for exterior of walk-in unit panels.
c.
Finish:
(1) Exterior: [Stainless steel on all exposed surfaces and
doors, aluminum on unexposed surfaces.] [Aluminum with two coats
of white, baked-on enamel paint.]
(2) Interior: [Stainless steel] [Aluminum with two coats of
white, baked-on enamel paint]. [Glass reinforced fiber panel.]
2.11.2
Doors
Provide [one] [two] per [unit] [section], with 100 mm 4 inch thickness,
filled with insulation. Provide vinyl hanging strips, able to be replaced
individually and anchored at head. Each door panel shall have an outside
pilot light, a light switch and a remote bulb sensor with exterior
flush-mounted, waterproof thermometer for registering box inside
temperature. Provide anticondensing strip heaters around perimeter of door
panel jambs. Top and each side of door shall have a resilient,
non-magnetic or thermoplastic with magnetic steel core gasket installed.
On bottom edge of door, provide a replaceable, adjustable rubber or vinyl
wiper gasket.
a.
Hardware: Provide two self-closing, spring-loaded hinges for each
door. Include plated steel pin and cam-lift type bearing.
Provide door latch with cylinder lock and with provisions for
padlock. Include safety-release handle to permit opening from
inside when locked.
2.11.3
Lights
Provide two-tube fluorescent lamps in vapor-proof fixtures with safety
SECTION 11400N
Page 30
Previous Page
