Construction Specifications GENERAL These specifications are intended to cover the complete installation of one (I) (MR-750 residential elevator, having o capacity up to 75016s. and car speed of 36 F.P.M. The lift is to he installed in a first class workmanlike manner and is to include all work and materials in accordance with specifications and installation drawings. The installation shall be guaranteed for one year from completion against defective materials and workmanship. It shall he in compliance with the applicable sections of the Safety (ode for Elevators and Escalators ASME/ANSI A17.1 and all local codes having jurisdiction. WORK BY OTHERS A suitable, fire ruled hoistway and machine room of proper size and construction conforming to the applicable building codes, and elevator construction drawings. Provide o pit of proper depth. Hoistway to have clear overhead as required and correctly sized door openings. Provide guide rail and sill supports us shown. Provide a power supply of 220 volt, 1 phase 60 hertz of ample size to operate the motor specified on the layout drawing. Power supply terminating in a fused disconnect switch breaker, located adjacent to the elevator controller in the machine room. A 115 volt light oullet in the hoistway, a light and switch in the machine roam and a telephone in the for connected to an outside central exchange. Hoistway doors, fromes and door hardware by others. PERMITS AND INSPECTION The elevator contractor shall obtain and pay for necessary Municipal or Stale permits and inspections, as required and make tests as called for by the regulations of such authorities. DRAWINGS The elevator contractor is to provide general arrangement drawings of the equipment showing the hoistway, pit, and machine room dimensions. Drawings to be properly approved before commencement of fabrication and/or installation. All surface finishes and colors to he selected and returned with approved drawings. HYDRAULIC POWER UNIT A power unit especially designed and manufactured for this service shell be furnished. It shall include a constant displacement rotary screw type pump, motor, oil reservoir, hydraulic control unit and oil level gouge. The hydraulic control unit shall include a safety check valve, on UP direction valve with high pressure relief including UP leveling and soft stop features, a lowering valve including DOWN leveling and a manual lowering feature; all encased in a compact unit assembly. The control valves shall be solenoid operated and designed to open and close gradually to give smooth starts and stops. All valves shall be readily accessible for adjustments. The power unit shall he located near the hoistway at the lowest landing, and shall be contained in a metal cabinet with a lid having a lock and key.

AUTOMATIC TWO-WAY LEVELING An automatic two-way leveling device shall be provided so that the car will approach a landing stop of reduced speed from either direction of travel. The leveling device shall, within its zone, be entirely independent of the operating device and shall automatically slop and maintain the car approximately level, plus or minus I/4 inch with the landing, regardless of the ch ange in load. EMERGENCY POWER LOWERING An automatic emergency lowering feature shall he incorporated into the power unit and control system. In the event of the loss of normal power the elevator will return to the lowest landing and continue to monitor all safely circuits. Opening the car gate or activating the slop switch or terminal limit will stop the elevator. PLUNGER The plunger shall be manufactured from accurately ground and polished seamless steel tubing. The bottom of the plunger shall he fitted with a heavy steel disc welded in place and provided with a suitable extended edge to provide a positive slop designed to prevent the plunger from leaving the cylinder in the up direction. The top of the plunger shall be provided with an internally welded steel disc drilled and lopped for fastening a U-groove sheave for 1-2 roping application. CYLINDER The cylinder shall he machined from steel pipe with a steel flange at the upper end and a heavy steel bulkhead welded in the lower end. The cylinder shall be provided with a suitable steel fitting for connecting the oil line and shall he provided with an air bleeder. PIPE RUPTURE VALVE An automatic shut off valve in the oil supply line at the cylinder inlet will be provided. When there is a drop in no load operating pressure, or an overspeed in the down direction, the automatic shut off valve shall be actuated and immediately slop the elevator. CAR CONSTRUCTION The car frame and integrated platform support shall be of welded steel construction of cantilever design. 11 shall be fitted with the appropriate diameter neoprene faced roller guide shoes and an instantaneous broken rope car safety and slack cable switch which will cut off power to the control valve if a rope should become slack or broken. SUSPENSION The steel car frame shall be attached to and suspended by two (2) 3/8" dia. 6x19 traction steel cables. The cables shall be fastened to the pit structure on one end and pass over the U groove sheave to shackles attached to the car frame and safety device. Should one or more cables break or slacken, a broken rope safety mechanism shall apply two cams to wedge against the elevator guide rails and bring the car to a complete stop. GUIDE RAILS Guide rails shall be provided for the car consisting of planed steel B pound per fool "T" sections erected and securely fastened to the hoistway framing by heavy steel brackets. The ends of all guides shall be longue and groove, forming matched joints and shall be connected with steel splice plales. ELECTRIC WIRING Furnish and install all wiring necessary for a complete installation commencing a1 the machine room disconnect switch and connecting the controller and power unit to all electrical devices. All wiring to be in accordance with the requirements of the applicable building codes and the National Electric (ode. The traveling cables between the car and the controller shall have o flame returning and moisture resisting outer cover. They shall be flexible and be suitably suspended to relieve strain in the individual conductor. CONTROLLER The controller components shall be enclosed in a metal cabinet with a hinged door. It shall contain the Following components: Power relays and overloud device suitable for the size motor and power supply. A microprocessor unit for all logical control and safety circuits. All components to be protected by fused circuits. An emergency, battery operated circuit, shall be incorporated in the control logic to automatically provide emergency lighting and lower the lift in the event of an electric power failure. Batteries to be main Joined at full charge by a trickle charge circuit during normal operation. OPERATION Operation of the lift shall be fully automatic. When the lift is not running and all doors and car gates are closed, the momentary pressure an any operating button will call or send the car to the corresponding landing. Operating buttons will be inoperative while the lift is running or when a hoistway door or car gate is open. OPERATING FIXTURES Provide a cur operating panel consisting of the landing buttons, a red push-pull emergency slop button, an alarm button, and a light switch. In addition, an emergency light and bell shall he integrated into the car station. The hall station is to contain a call button, and acknowledge light or in use light and he located adjacent to each landing hoistway door. All operating buttons are to have face plates of #4 brushed stainless steel. (design options and features available). DOOR LOCKS A combination unit system contact and lock shall he furnished for each hoistway entrance. The interlock device shall prevent elevator operation unless all doors are closed and locked and prevent opening of a door when the car is not a1 rest at that landing. HOISTWAY DOORS The general contractor or owner is to furnish (elevator contractor may opt to furnish) and install hoistway doors, homes, hinges and passage sets at each landing. The type and installation of the doors and fromes must comply with ANSI Al 7.1, all local codes and us per manufacture' s layout drawings. CAR ENCLOSURE The car enclosure and platform shall be securely fastened to the steel car frame and platform support. The car enclosure shall be constructed of 3/4" wood panels. A handrail shall be provided. Standard lighting consists of two recessed down lights set in the car ceiling. Platform to be constructed of 1 1/4" plywood with fire stop steel reinforcing pan. (or floor to he prepared for floor covering by others. Each open side of the car enclosure shall be equipped with a horizontal, manually operated, folding gate (optional power operator available). Gale is the accordion type with choice of panels in laminate, wood o" tear acrylic. Design options and features available us described under "Cob Designs and Specifications" for the 'Executive', 'Franklin', 'Raleigh' and 'Saratoga' models. WARRANTY All materials furnished by elevator contractor shall be guaranteed for a period of one (l) year against defects in workmanship. PLEASE NOTE: Hatch dimensions may vary, depending on manufacturer.