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Specifications
Part 1 General
1.01 Summary
A. Aluminum grilles excluding design, construction and preparation
of openings; finish or field painting; access panels; electrical
wiring, conduit, wire, fuses and disconnect switches
1.02 Performance
A. Usage: Aluminum grilles are designed to operate a minimum of 20,000 cycles.
Part 2 Products
2.01 Materials
A. Manufacturer: R & S Manufacturing, model G ___
B. Mounting: Face of wall or between-jamb
C. Operation: Push-up to 14' wide and 9' high (with pull-down pole over 7' high)
and chain hoist on larger sizes is standard. Awning crank, crank
box or motor operation are optional.
D. Curtain: Pattern 91 ___, formed with horizontal rods 1 1/2" apart, connected
by vertical links 9" apart. Bottom of curtain is reinforced by
an extruded aluminum tubular footpiece.
E. Guides: Extruded aluminum guides are bolted to structural steel wall angles.
Guides are fitted with nylon pile wearstrips.
F. Brackets: Steel plate brackets are bolted to wall angles to support curtain
and barrel and provide mounting for hood.
G. Barrel: Steel pipe houses torsion spring assembly and supports curtain
with a maximum deflection of .03 inch per foot of width. Torsion
springs are mounted on a continuous cold rolled steel shaft, adjustable
by a tension wheel outside or inside one bracket.
H. Locking: Slidebolt locks with push-up or crank operation and chain lock
with chain operation.
2.02 Finish
A. Aluminum curtain, footpiece and guides are mill finish. Steel
brackets and wall angles receive one coat or rust inhibiting grey
primer.
Part 3 Execution
3.01 Installation
A. Aluminum grilles are to be installed by and R & S authorized representative
in accordance with R & S installation instructions. |