W91238-11-Q-0121 Scope of Work.docx

Scope of Work: New Motor Operators; New Emergency Exit Door:

Demolition: Inspect and recommend any necessary changes to the existing door hardware. As required remove or disengage the existing chain hoist.

Motor Operator: Provide and install motor operators at each of the existing 6 roll-up doors. Units shall be rated at a minimum of ½ horse power with an emergency chain hoist. Each unit shall be controlled individually. Installation shall include any sensor or controls as required by manufacturer or code. Power: Provide manufacturer recommended power requirements and connection details for each motor operator. Electric power, by others.

Controls: Provide and install individual controls for each unit; the controls shall be clearly labeled and mounted near each roll-up doors on a new ¾”plywood panel and additional three-button type controls for the nearest 3 roll-up doors, mounted on a new ¾”plywood panel near each passage door located at the east and west end of the building. All wiring shall be installed in EMT and in not more than 3ft.flexible conduit where required for mechanical and rodent protection. Installation shall include any sensor or controls as required by manufacturer or code.

Provide a motor for each door with an enclosed, across the line type, magnetic reversing contactor, thermal overload and under voltage protection, solenoid operated brake, limit switches, and control switches. Locate control switches at least 1500 mm 5 feet above the floor and within 600 mm 2 feet from the door jamb so the operator will have complete visibility of the door at all times. Provide control equipment to conform to NEMA ICS 1 and NEMA ICS 2. Provide control enclosures with NEMA ICS 6 Type 12 or Type 4, except that contactor enclosures may be Type 1. Provide a three-button type control switch stations with buttons marked "OPEN," "CLOSE," and "STOP." The "OPEN" and "STOP" buttons shall require only momentary pressure to operate. The "CLOSE" button shall require constant pressure to maintain the closing motion of the door. If the door is in motion and the "STOP" button is pressed or the "CLOSE" button released, the door shall stop instantly and remain in the stop position; from the stop position, the door may be operated in either direction by the "OPEN" or "CLOSE" button. Pushbuttons shall be full-guarded to prevent accidental operation. Provide limit switches to automatically stop doors at the fully open and closed positions. Limit switch positions shall be readily adjustable.

Safety Device:

Provide an electric type photo cell entrapment safety device for each electrically-operated door. The device shall immediately stop and reverse the door movement during the closing travel upon detecting an obstruction in the path of its light beam in the door opening and cause the door to return to full-open position or upon failure of any component of the control system. Provide for an automatic lock-out on the door closing circuit and a manually operable door until the failure or damage has been corrected.

Emergency Exit Door:

Provide and install one 36in by 80in steel frame and door at the rear of the building. New frame and door shall be centered within the center bay of the building to replace the existing louvered vent, location as approximately shown on the attached sketch; verify the location of the frame and door with the government representative. Use siding material salvaged from relocation of the louvered vent to patch the siding around the new door frame; ensure a weather tight seal to the structure. Contractor will be cutting through vinyl coated steel with a minimum .024 thickness.

Remove and reinstall the existing louvered vent; locations as approximately shown on the attached sketch, verify location with the government representative. Ensure weather tight seal to the structure.

Door shall be grade II, flush mounted; one coat primer and two coats finish paint, color to match building body; hardware requirements, quantity and finish requirements follow:

Hinges: ANSIIBHMA A156.l, 4-1/2 by 4-112 inch Heavy Duty. Construct with non-removable pins for exterior doors.

3 EA. HINGES, A5111 (4-112" x 4-112") Finish: 630 (Stainless Steel)

Closers: ANSIIBHMA AI56.4, Series C02000, Grade 1, with PT 4C. Provide with Brackets, arms, mounting devices, fasteners, and full size covers.

1 EA. CLOSER, C02021 (Parallel Arm) Finish: 600 (Primed for Painting) (Paint to match adjacent door frame)

Exit Devices: ANSIIBHMA AI56.3, Grade 1. Provide adjustable strikes for rim type devices.

Provide touch bars

1 EA. EXIT DEVICE, TYPE 01, FUNCTION 01

(LOCKSET PROVIDED BY EXIT DEVICE MFR.)

Finish: 646 (Satin Nickel)

Contractors are encouraged to visit site to better understand the Scope of Work pertaining to this project. Site visits may arranged by contacting Gary Fong.

Gary Fong Ph: (916) 557-6974 Email: Gary.C.Fong@usace.army.mil