| General Requirements Hoistway doors are 1½ hours fire rated construction or a rating to
meet applicable local codes.
To complete the installation, the following items must be
considered, which are not included in the elevator contract, Referenced rules are from
ASME A 17.1.
1. Hoistway walls are to have a fire
resistance rating of not less than 2 hours. ASME A 17.1 Rule 100.1a.
2. Furnishing, installing and maintaining
the required fire rating of elevator hoistway walls, including the penetration of fire
wall by elevator fixture boxes. is not the responsibility of the elevator contractor.
3. The interface of the elevator wall
with the hoistway entrance assembly shall be in strict compliance with the elevator
contractor's requirements.
4. Entrance wall and finished floor are
not to be constructed until after door frames and sills are in place.
a. Were front walls
are of reinforced concrete, the concrete openings must be minimum 12" (305 mm) wide
[6" (152mm) on each side] and 6" (152 mm) higher than the clear opening
(including transom height).
b. Where drywall or
sheet rock construction is used for front walls, it shall be of sufficient strength to
maintain the doors in true lateral alignment. Drywall contractor to coordinate with the
elevator contractor. Note: A support member (spreader beam) must be provided for floor
heights greater than 12'-0" (3658mm) to support entrance header struts.
c. Door frames are to
be Anchored to walls and properly grouted in place to maintain legal fire rating (masonry
construction).
5. For applications requiring grouted
sills, provide sill supports with 2½"x4" (63mm x 102mm) minimum floor recess
the full width of the hoistway. Grout full length and width after sills are set.
6. Filling and grouting around entrance.
7. The use of 18 gauge (.048")
materials for doors have UL approval.
8. When fixtures are mounted in drywall
side jambs, wall thickness may increase. Requirements must be coordinated with your
elevator contractor.
9. Where openings occur, all walls and
sill supports must be plumb.
10. When sill supports are provided by the elevator
manufacturer, hoistway should be capable of accepting anchor stud type fasteners.
11. When fluted steel decking is used
under concrete flooring, the concrete must be no less then 4" (102mm) thick;
2½" (63mm) thick for sill angle anchors. |
