4. Section Operation and Maintenance Manuals. 5. Section Common Work Results for Shop Equipment

Transcription

1 SECTION VEHICLE WASHING EQUIPMENT PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specifications Sections, apply to this Section. 1.2 SUMMARY A. This section includes the following: 1. Furnishing, installing, and testing an automatic two (2) lane drive-through bus wash system, one (1) bypass lane wheel and undercarriage spray system, and water recycling system as specified and shown on the attached Drawings. 2. Provide properly sized disconnect switches for each equipment item requiring electric power in accordance with manufacturer s requirements and NFPA 79 Electrical Standard for Industrial Machinery. 3. Provide and install all plumbing and electrical products required to interconnect the equipment for complete systems. B. Related Sections: 1. Section Submittal Procedures 2. Section Quality Requirements 3. Section Product Requirements 4. Section Operation and Maintenance Manuals 5. Section Common Work Results for Shop Equipment 6. Section Hangers and Supports for Plumbing Piping and Equipment 7. Section Identification for Plumbing Piping and Equipment 8. Section Plumbing Insulation 9. Division 23 - Heating, Ventilating, and Air Conditioning 10. Division 26 - Electrical VEHICLE WASHING EQUIPMENT

2 1.3 REFERENCES: A. Equipment shall conform to Federal and State governing rules and regulations and ordinances including, but not limited to the following requirements. Equipment shall be configured to meet any relevant sections of the following standards. Equipment shall be configured such that upon proper installation and use it shall pass inspection by authorities having jurisdiction. 1. National Electric Code (NEC) 2. National Fire Protection Association (NFPA) 3. Occupational Safety and Health Administration (OSHA) 4. American National Standards Institute (ANSI) 5. American Institute of Steel Construction (AISC) a. Manual of Steel Construction. 6. American Society of Testing and Materials, Inc. (ASTM) a. ASTM A123 Specification for Zinc (Hot-Dip Galvanized Coatings on Iron and Steel Products. b. ASTM A385 Practice for Providing High Quality Zinc Coatings (Hot Dip). 7. American Welding Society (AWS): Structural Welding Code Steel (AWS D 1.1). 8. National Electrical Manufacturers Association (NEMA). a. NEMA 250 Enclosures for Electrical Equipment (1000 Volts Maximum). 9. Ohio Building Code and the International Building Code as adopted therein. 1.4 SUBMITTALS: A. Submit the following: 1. Qualifications of Installation Supervisor. 2. Qualifications of Installing Contractor. 3. Shop Drawings and Product Data a. Submit foundation, trench, sand traps, trench/sump pit, and equipment layout drawings as part of the shop drawing requirements. The wash equipment shall fit within the design parameters or identify discrepancies during bidding, prior to contract award. Provide sufficient dimensions to properly construct pit infrastructure. b. Submit shop drawings showing all dimensions, utility hook-ups, and installation requirements. Electrical and plumbing schematics shall provide all the requirements to connect the washers to the proper utility stub-ups located in the equipment room. Contractor shall make the final utility connections under manufacturer's recommendations to assure a VEHICLE WASHING EQUIPMENT

3 proper working system. Contractor is responsible to provide all material and labor for the final connection of the utility lines to the equipment. c. Submit manufacturer's detailed catalog cuts for all equipment components. Certified pump curves. d. Electrical requirements, electrical characteristics. e. Calculations: 1) Fresh Water and Recycled Water Flows 4. Specifications and Material Safety Data Sheets (MSDS) of recommended lubricant, oil or chemical products to operate and/or maintain the equipment. 5. Installation Instructions, templates, special instruction for field installing contractor. 6. Operations and Maintenance Manuals. 7. PLC program in written form and electronic media format acceptable to Owner at job completion. 8. Provide a preventive maintenance log detailing recommended service based upon a timeline of hours in service, days, weeks, months as applicable. Service log should be submitted in written form, and in Word or Excel format. 9. Full list of parts, parts manual. B. Submit signed Certificates of Compliance indicated that all equipment complies with the drawings and specifications and applicable manufacturer s standards. Certificate shall be signed by an authorized representative of the manufacturer. C. Submit copies of manufacturers completed in house quality control documentation and sign off on quality of production. D. Submit full statement of Warranty in accordance with the specified Terms and Conditions. Warranty statement shall be signed by representatives of the Owner and manufacturer; dates that warranty is in effect shall be documented. 1.5 QUALITY ASSURANCE A. Manufacturer Qualifications: Company specializing in manufacturing products specified in this Section with a minimum of 5 years experience. B. As a minimum requirement, the Installing Contractor must have installed at least three (3) bus washing and water recycling systems similar to the systems described in this specification within the last five (5) years. VEHICLE WASHING EQUIPMENT

4 1.6 DELIVERABLES A. Operations and Maintenance Manuals: 1. Provide Operations and Maintenance Manuals in accordance with the requirements of Section and Section B. As-Built Drawings: 1. Provide As-Built Drawings in accordance with the requirements of Section Common Work Results for Shop Equipment. C. Training Program: 1. Provide Training Program in accordance with the requirements of Division 1 and Section Common Work Results for Shop Equipment 1.7 DELIVERY, STORAGE AND HANDLING A. Deliver, store and handle products in compliance with the requirements specified in Section Common Work Results for Shop Equipment and the requirements of the Owner. 1.8 TRAINING PROGRAM: A. Provide training on all installed bus washing system, bypass lane spray system, and water recycling system equipment. The training program shall consist of both classroom and hands on instruction. Provide labor and materials as required during hands on instruction program. 1.9 WARRANTY: A. Provide the Owner with a one-year warranty of the vehicle wash system, water recycling system, and bypass lane spray system covering all parts, materials, and labor, except regular maintenance items. Consumable items such as filters or lubricants or normal wear items shall not be covered by warranty, unless the item fails grossly short of its predicted life under normal use and wear, indicating a manufacturer s defect. All warranty work shall be performed by a local manufacturer s representative who has capabilities of responding to all problems within 24 hours. The manufacturer s representative shall have the timely access to parts and have the capabilities to make the repair and make a determination as to warranty coverage prior to proceeding. Agreement as to extent of coverage shall be established as soon as possible between the Owner and the manufacturer s representative. B. Bus wash and water recycling system warranty shall be direct between the Owner and the bus wash manufacturer. The bus wash manufacturer shall handle any 3 rd party warranties for specific original equipment or sub-components and not involve the Owner in warranty claims with specific parts manufacturers. Warranty term will begin upon date of acceptance. Warranty documents must be VEHICLE WASHING EQUIPMENT

5 signed by a representative of the manufacturer and the Owner of the equipment, clearly stating dates in effect and provisions of warranty BASIS OF DESIGN AND ACCEPTABLE MANUFACTURERS A. Where a specific manufacturer or product is identified as the Basis of Design or listed first in a list of acceptable manufacturers, the overall project design is based on the identified manufacturer or product. If the Contractor elects to utilize a manufacturer or product which differs from the identified Basis of Design, the Contractor shall bear all efforts and costs of any design changes necessary in order to achieve finished work which is equal in character, performance, and quality to the original design depicted in the Contract Documents. Such changes shall include, but not necessarily be limited to: changes to ratings and/or features of other equipment, changes to material sizes and/or types, new material and/or equipment, and changes to structural and/or architectural features (including room sizes). Approval by the Architect of a proposed item shall not relieve the Contractor of this responsibility. B. The listing of specific manufacturers is solely intended to identify reputable manufacturers who are known to provide quality products of the general type specified. Such listing is in no way intended to imply that the identified manufacturer s product(s) have been verified to satisfy the specified requirements, or to be equivalent to any identified Basis of Design manufacturer. Nor does such a listing imply acceptance of products which do not meet the specified requirements, ratings, features, dimensions, and functions as indicated. PART 2 PRODUCTS 2.1 BUS WASHER A. Equipment Item: BW-2 B. Acceptable Manufacturers 1. Products of the following manufacturer are specified herein as the standard of quality for the bus wash equipment. a. Ross & White Company 1090 Alexander Court Cary, IL Telephone: (847) Model 4x4 HPF-OM 2. Products of equal quality and utility shall be accepted for review. a. N/S Corporation 235 W. Florence Ave. Inglewood, CA Telephone: (800) VEHICLE WASHING EQUIPMENT

6 b. InterClean 709 James L. Hart Parkway Ypsilanti, MI Telephone: (734) a.c. Or approved equal. C. General Description: 1. Provide two 4 brush bus wash systems capable of washing both all buses in the Owner s fleet. Included are all components necessary to deliver bus wash operation satisfactory to the Owner. 2. Operation: a. Washer components shall be automatically actuated in sequence by vehicles, driven in centered path between tire guides, at a nominal speed of 1.0 to 1.5 feet per second through each washing stage without stopping. b. Entry shall be through a pumped prewetting/detergent application cycle, progressing through a brush washing cycle, which shall effectively clean all vertical body surfaces of front, sides, and rear of applicable vehicles, including windshield and windows and bus front locations where bike racks are mounted, using 4 (four) vertical rotary brushes, each equipped with detergent spray applicators, and high-pressure sprays. c. Each brush shall be capable of scrubbing its respective vehicle side and shall be capable of scrubbing function in a wrap-around mode to scrub its respective rear of the vehicle. d. Effective washing of the horizontal and curved portions of the vehicle roof shall be by a full width, oscillating roof mop with detergent spray. e. A high-pressure application of water to the fronts and wheels shall be incorporated to remove soils from those areas of the vehicle surface that cannot benefit from brush scrubbing. f. A medium pressure application of water to the undercarriage of the bus shall be incorporated to remove soils from those areas of the vehicle. g. Final rinse of the front, roof, sides, rear and wheels of all vehicles shall be by a canted rinse spray assembly. h. An air stripper assembly shall follow the final rinse assembly to reduce carry-off water from the roof, front, sides and rear of the bus. 3. The system shall use reclaimed/treated water in the standard operating mode. Alternatively, the system shall accommodate all fresh water, if Owner chooses to have the reclaimed / treated water go to the sewer instead of being reused in the next wash if the salt content of the recycled water is too high. 4. Major components: (Quantities listed are per lane, 2 lanes required) a. Automatic Controls: Vehicle actuated switch gear including prewired electric control panel and manual override controls. b. Tire Guides: Full length, one pair c. Skid plates: One pair d. Prewetting/Detergent Spray Arch: Automatic, frame mounted, free standing unit. e. Oscillating Roof Mop: Full width with integral detergent spray assembly. VEHICLE WASHING EQUIPMENT

7 f. Vertical Brushes: Four rotary brushes with integral detergent spray, and top and bottom supported frame assembly. g. High pressure front, lower body and wheel wash spray. h. Medium pressure undercarriage wash. i. High Pressure Rear Wash Arch: Automatic frame mounted, free standing unit. j. Rinse Spray Arch: Automatic frame mounted, free standing fresh water unit. k. Post Rinse, Water Stripper Assembly: Full width, free standing assembly. l. Air System: Automatic with air control panels. m. Washer Equipment Miscellaneous, provided with equipment: Brush yokes, columns, base plates, anchor bolts, pumps, detergent distribution system, and miscellaneous components necessary for a complete operating bus washer. D. Capacity and Dimensions: 1. Maximum Vehicle Dimensions: a. Length: 60 feet. b. Width: 8.5 feet (does not include exterior mirrors) c. Height: 11 feet, 5 inches. 2. Nominal Overall Equipment Dimensions Installed: a. Length: 85 feet (nominal). b. Width: 20 feet. c. Height: 15 feet, 6 inches. E. Features and Construction: 1. Tire Guide Rails (Equipment Item BW-2B): Fabricated from minimum 4 inch diameter tubular steel pipe sections supported at maximum 3 feet-3 inch intervals, providing guide runs on both sides of vehicle; installed full length of vehicle wash lane with angled entry sections. Guide spacing shall accommodate vehicles up to and including 102 inch width. Bracket supporting pipe sections shall be cinch anchored with ¾ inch by 5-1/2 inch (min.) Rawl-Studs, to be provided by equipment manufacturer. Tire Guides to have a height of 6½ inch (min.) except under brush yokes which shall be 5 inches (max.). Ends of rails shall be capped and all sections shall be smoothly finished to prevent tire damage. 2. Skid Plates (Equipment Item BW-2A): Provide flat, polished 3/16 inch (min.) thick stainlesssteel skid plates mounted flush to slab. Angled entry section of tire guide shall minimize tire sidewall damage caused by resistance to lateral movement resulting from misaligned entry to vehicle washer. Plates shall be nominally 3 feet-0 inch wide tapering with tire guide angle to 2 feet-0 inch wide at entrance to straight section of the guides. 3. Prewetting/Detergent Spray Arch Assembly (Equipment Item BW-2D): Position of arch shall be such as to provide optimum detergent penetration before brush wash cycle begins. Furnish complete with separate actuating control, detergent metering pump (Equipment Item BW-2R), storage/mixing tank, incidentals, and hardware necessary for working installation. a. Piping and Nozzles: Provide with a minimum of 1.5 inch schedule 40 stainless steel pipe with side pipes canted away from the approaching vehicle to provide sequential chemical application starting at the bottom and progressing to the top. Spray arch to be equipped with VEHICLE WASHING EQUIPMENT

8 a slow closing solenoid valve sized to match the supply pipe. Nozzles for spray assembly shall include a minimum of 25 nylon diaphragm check valves, 25 quick tee-jet double swivel body ¼ nylon, 50 quick tee-jet cap with a gasket, and 50 brass nozzle tips. Nozzles shall be configured so that half of the spray nozzles shall spray the rear of the vehicle. Total arch output shall be 20 GPM (min.) at 40 PSIG (nominal) water pressure. b. Prewetting Detergent Spray Arch Frame: Piping shall be supported by a frame constructed of 2"x2"x3/16" (min.) structural tubing welded to minimum 15"x15"x3/8" steel base plates, each bolted to slab with no fewer than (4) anchor bolts, no less than 1/2" diameter and 5-1/2" long. Reinforce frame with (3) gussets, minimum 3/8" thickness, welded to each base plate. 4. Brush and Frame Assembly (Equipment Item BW-2E): a. Main Support Columns: Provide minimum of four support columns, two per side, and one for each brush. Two columns shall be minimum 10 inch x 10 inch x ¼ inch hollow structural steel tubing welded to 36 x 36 x ¾ inch (min.) thick base plates, each with not less than three welded 3/8 inch thick steel plate gussets. Welds of frame assembly and following equipment shall be continuous; spot and tack welds are not acceptable. Secure each base plate with no fewer than four 1-1/4 inch x 9 inch Rawl-Stud cinch anchors. Main support columns shall be braced overhead, crosswise and lengthwise in relation to the flow of traffic. Cross brace columns with 4 x 4 x 1/4 (min.) hollow structural steel tubing bolted at each end. Two pivot bearing plates for each column; 1 top and 1 bottom shall also be provided. Top bearing plate shall be welded to the main support column and shall have two 3/8 inch (min.) steel plate gussets. Lower bearing plate shall also be welded to the main support column and shall have the same gussets, welded between the bearing plate and the column base plate. b. Front and Rear Brush Yoke Assemblies: The brush yoke arm shall be curved to allow clearance for the extreme corners of the vehicle during the washing motion. All structural members shall be designed and sized to withstand stresses encountered without deformation. Maximum allowable frame distortion shall be.002 times the span. The top and bottom brush yoke arms shall be 4 inch x 3 inch x ¼ inch (min.) structural tubing. Yoke arms to be of one piece construction, cold formed with 12 inch (nominal) radius bends to allow vehicle clearance. Brush yokes with metered and welded joints are not acceptable. Pivot tube of brush yoke assembly shall run the full length of the brush and be fabricated from 4 inch x 8 inch x ¼ inch (min.) structural tubing with machine stub shafts welded at each end to accept a 1-3/4 inch (min.), 4-bolt flange bearing. Brush shafts must be secured at both top and bottom of brush yoke. Brush shafts and brush yokes shall be secured at both top and bottom of brush yoke. All brushes shall move through a predetermined defined swing radius as determined by the brush yoke structure. Free floating or top supported brushes are not allowed. All brush shaft and brush yoke bearings shall be protected from moisture and have grease fittings remotely located 4 feet-0 inch (nominal) above the floor on the support column. Two additional supports to yoke arms shall be fabricated from 3 inch x 3 inch x ¼ inch (min.) structural tubing. c. Brush Arm Movement: Movement of brush arm shall be by air cylinders; minimum 4 inch bore with hardened chrome plated shafts and bores. Each cylinder shall be amply lubricated. Air hoses to cylinders shall be minimum 3/8 inch, two-ply, rayon braid type with a minimum working pressure of 200 PSIG and a minimum burst rating of 500 PSIG, each hose equipped with brass male and female swivel threaded connectors. Cylinders shall be mounted by trunnion bearings with grease fittings. Cylinders shall have air cushion stops on the extreme VEHICLE WASHING EQUIPMENT

9 in and out positions. Valving shall be provided for individual cylinder regulation including retraction out of the vehicle path for maintenance. All brush yokes shall retract when power is off - permitting unobstructed vehicle passage through wash lane. d. Rotary brushes: Washing of bus vertical surfaces shall be by (4) electric motor driven vertical brushes which shall automatically adapt vehicles sides without damage to mirrors. 1) Motor, Drive, and Coupling: Motors shall be 5 horsepower (min.), totally enclosed fan cooled, flanged to an 18:1 (nominal) worm gear drive unit with output shaft flexibly coupled with taper lock bushings to the brush shaft, permitting the brush shaft to be removed without disturbing the gear motor assembly. Unit shall be designed for a moisture intensive environment. Brush speed to be 96 RPM (nominal). 2) Brush Shaft and Bearings: Brush shaft shall be cold rolled minimum 2-1/4 inch diameter steel tube mounted in minimum 1-3/4 inch flange bearings with grease fittings remotely located 4 feet-0 inch (nominal) above the floor on the main brush support arms. Each brush shaft shall be equipped with a bearing guard and antiwrap disc located above the bottom flange bearing. Bearing guard to be fabricated from 1/8 inch (min.) steel spinning and attached to brush shaft by means of one 2-1/4 inch (nominal) locking collar. An 18 inch (nominal) diameter anti-wrap disc shall be positioned and attached to brush shaft just above the bearing guard. 3) Brushes: Each brush shall be made up of 18 inch (nominal) and 12 inch (nominal) long sections of 60 inch (nominal) diameter brush material firmly held in split aluminum cores. The brush section shall be mounted to the brush shaft by means of aluminum bolting collars. The brush fill shall be 20 strips of.044 hollow Circuleen materials (nominal), locked into steel backed brush strips which are locked into the brush cores. The bottom three brush sections shall be of a full loop extra-heavy density packed construction, 110 to 120 filaments per inch (nominal). The top four brush sections shall be full loop light density 50 to 60 filaments per inch (nominal). Brush filaments shall be Industrial Brush Corporation (IBC) "Circuleen". 4) Brush Wetting Assembly: Each brush yoke shall be provided with a ¾ inch (min.) galvanized steel spray bar fitted with a minimum of nine brass spray nozzles to flush brush continuously during operation with detergent water solution at a nominal rate of 25 GPM at 60 PSI. The brush wetting assembly shall be mounted to the full length of the brush yoke structure and spray the full length of the brush. Free floating or top-mounted brush spray system is not permitted. 5) Wash pumps (Equipment Item BW-2N): Furnish two (2) 20 horsepower (min.) drive vertical, multi-stage, centrifugal pumps. The water being delivered to each brush shall provide detergent water solution at a nominal rate of 25 GPM at 60 PSI. Pump assembly to be furnished hot dipped galvanized support stand, suction and discharge flange kit, schedule 80 PVC tru-union suction isolation ball valve, discharge side isolation ball valve, discharge pressure gauge, discharge check valve and hose for connecting pump to field piping. Pumps shall be provided with piping manifolds to facilitate field installation. 6) e. Oscillating Roof Mop Assembly and High Pressure Front and Wheel Wash Spray Components: VEHICLE WASHING EQUIPMENT

10 1) Support Frame: The bridge structure shall be constructed from 4 inch x 3 inch x ¼ inch (min.) structural tubing, with four braces on the same material. Mop assembly shall be bolted to the interconnecting column bridges. 2) Roof mop assembly shall be of the oscillating type with two sets of two rows each of mildew resistant Foss cloth material cut into strips. Mop shall oscillate in the opposite direction to each other, to provide a gentle wash of the bus roof and eves. 3) Mop suspension frame shall be fabricated from 2 inch angle and each frame shall be hung from (2) pieces of Goodyear four-ply conveyor belting with combined pull strength of 12,000 pounds (min.) per piece. 4) Roof Mop Sprays Provide two 1 inch (min.), galvanized schedule 40 pipes as mop sprays. Spray pipes shall have ten (min.) brass spray nozzles each, flushing mops with nominal 20 GPM at 60 PSIG of water/detergent solution. 5) Mop Drive: Roof mop drive shall be 2 horsepower (min.), totally enclosed fan cooled, NEMA design B, electric motor flanged to right angle gear reducer. 6) High Pressure Front and Wheel Wash Spray Components: A spray header with sufficient nozzles to deliver water at a flow rate of approximately 90 gallons per minute at 250 PSIG shall be affixed across the assembly with nozzles aimed at an angle to hit the fronts, hoods, and windshields of the vehicles prior to reaching the mop assembly. The wheel wash spray shall consist of wheel wash spray bars installed on each side of the wash lane at locations recommended by manufacturer. Each spray bar shall be equipped with a series of stainless steel spray nozzles to provide full coverage of the bus wheels. Piping shall be schedule 80 galvanized steel. Spray pipes and spray pipe distribution piping shall be factory piped and wired on the brush machine frame, with two high pressure motorized ball valves for diverting pump flow from front sprays to lower body wheel sprays. 7) High Pressure Front, Rear, and Wheel Wash Pumps (Equipment Item BW-2M): Furnish two (2) 20 horsepower (min.) drive vertical, multi-stage, centrifugal pumps. The water being delivered to the front wash header and wheel wash spray bars shall be from a pump capable of both 90 gallons per minute at 250 PSI (min.) for front sprays and 60 gallon per minute at 300 PSIG for wheel sprays. Pump assembly to be furnished hot dipped galvanized support stand, suction and discharge flange kit, schedule 80 PVC tru-union suction isolation ball valve, discharge side isolation ball valve, discharge pressure gauge, discharge check valve and high pressure hose for connecting pump to field piping. Pumps shall be provided with piping manifolds to facilitate field installation. 8) Each system shall incorporate high pressure motorized ball valves that redirect the flow from the high pressure pump to the wheel wash spray bars after the vehicle front passes the overhead spray bar, and to the rear wash spray arch after vehicle passed the wheel wash spray bars. 5. Rear Wash Spray Arch (Equipment Item BW-2F): a. Piping and Nozzles: Piping shall be schedule 40 (min.) galvanized 1.5 inch minimum steel pipe with side pipes of arch canted toward approaching vehicle to provide sequential rinsing starting at top and progressing to bottom of vehicle. Provide a minimum of 22 brass spray nozzles threaded into the rinse arch pipe arranged to provide full rinsing coverage with fresh water over entire vehicle. Output capability of rinse arch shall be a least 70 GPM of fresh water. Provide ball valves of size matching supply pipe for adjustment of arch output. VEHICLE WASHING EQUIPMENT

11 b. Support Structure - Piping shall be supported by a frame constructed of 2"x2"x3/16" (min.) structural tubing welded to minimum 15"x15"x3/8" steel base plates, each to be bolted to slab with no fewer than (4) anchor bolts, no less than 5/8" diameter and 5-1/2" long. Reinforce frame with (3) gussets, minimum 3/8" thickness, welded to each base plate. 6. Final Rinse Arch (Equipment Item BW-2G): a. Piping and Nozzles: Piping shall be schedule 40 (min.) galvanized 1.5 inch minimum steel pipe with side pipes of arch canted toward approaching vehicle to provide sequential rinsing starting at top and progressing to bottom of vehicle. Provide a minimum of 22 brass spray nozzles threaded into the rinse arch pipe arranged to provide full rinsing coverage with fresh water over entire vehicle. Output capability of rinse arch shall be a least 70 GPM of fresh water. Provide ball valves of size matching supply pipe for adjustment of arch output. Should City Water prove to be insufficient provide a final rinse pump if needed to meet the flows. b. Support Structure - Piping shall be supported by a frame constructed of 2"x2"x3/16" (min.) structural tubing welded to minimum 15"x15"x3/8" steel base plates, each to be bolted to slab with no fewer than (4) anchor bolts, no less than 5/8" diameter and 5-1/2" long. Reinforce frame with (3) gussets, minimum 3/8" thickness, welded to each base plate. 7. Water Stripper Assembly (Equipment Item BW-2J): a. Main Support Frame: The main support frame shall consist of four (4) vertical support legs, plus an additional two (2) support legs that are located at the exit end of the unit and sloped 53 degrees from the floor level. All support legs shall be constructed of 4 x4 x1/4 (min.) square steel tubing. The main horizontal cross beam shall be constructed of 4 x6 (min.) square steel tubing. Complete framework shall be hot-dipped galvanized after fabrication. b. Blower Nozzle Assemblies: There shall be a minimum of eight (8) blower housing assemblies (two on the top, three on each side). Each assembly shall be fully adjustable by a swivel joint for various angles to suit specific vehicle shape configurations. Each housing shall be constructed of mild steel, primed with a zinc rich primer and a powder coat finish and mounted on individual round tubing support brackets. Nozzle slots connected to the blower assembly shall be fabricated from type II PVC and have a slot width of 1 (nominal) and a length of 3-9 (nominal). c. Motor/Fans: Each blower assembly shall include a high efficiency and dynamically balanced 7.5 HP (min.) TEFC motor and impeller fan. Each assembly shall produce 4035 CFM (min.). Nozzle slot velocity is feet per second (min.). d. Air Stripper Assembly shall be Model WS MS PVC as manufactured by Ross and White or approved equal. 8. Miscellaneous: a. Start/stop functions of each washer function shall be by overhead mounted ultrasonic proximity switches (Equipment Item BW-2L). Switches to be adjusted to allow pedestrian traffic to pass beneath the switch and capable of sensing vehicles to be washed. Switches to be programmed to see hard surfaces of the vehicle while looking through water sprays present in the wash process. Each switch to be housed within a weather shield fabricated from ¼ (min.) thick PVC sheet, formed and thermal welded to provide a firm mount for the proximity switch and shielding same from the wash bay environment. VEHICLE WASHING EQUIPMENT

12 b. Air Control: Each air cylinder shall have its own air control panel for adjustment of brush arm movement. The air control shall consist of a 3/8 inch (min.) ball valve, combination filter regulator, lubricator and air solenoid valve, all factory pre-assembled and mounted inside a NEMA 12 fiberglass enclosure. Both filter and lubricator sight bowls shall protrude through the bottom of the air control enclosure for maintenance inspection. The air control panel shall be mounted to the main column assembly within easy reach of maintenance personnel. All air control components shall be 3/8 inch (min.) pipe size, 200 PSIG working pressure. All air hoses shall be rated to a 500 PSIG minimum burst and shall be of a two braid type with swivel fitting one end. Fittings for air equipment shall be 150 lb. galvanized malleable iron. All air controls shall include the following: 1) 3/8 inch (min.) ball valve, bronze bodied, rated for 300 PSIG working pressure installed ahead of air equipment. 2) Combination Filter/Regulator: Fully adjustable with locking set, PSIG (nominal) liquid filled gauge monitored, removable visual polycarbonate sight bowl, and Push-n-Drain water blow off. 3) Lubricator: Fully adjustable, needle valve operated, produce oil particles of 2 microns or smaller, removable visual polycarbonate sight bowl, 360 visual sight dome. Equip lubricator bowl with a float type fill. 4) Air Control Valve: 4-way, inline, mounted, two position, five ported, single solenoid pilot operator maintained contact, air and spring return, recessed nonlocking manual override, capable of being serviced without disturbing piping or wiring. 5) Air Speed Control: Inline mounted, two per cylinder, fully adjustable with locking nut, screen baffled mufflers. c. Solenoid Valves: Fresh water solenoid valves shall be slow-closing type to prevent hammering and stress on water lines. All water solenoid valves shall be union isolated. d. Entrance Lights (Equipment Item BW-2C): The entrance light unit shall be mounted at the entrance of each washer. This unit shall consist of a duplex traffic signal light with one red lens and one green lens. Actuation of the red light will indicate that the rear brushes are in the wash cycle and no vehicles are to enter. The green light, when actuated, will indicate that the rear brushes have retracted and are ready for the next vehicle to enter. e. Speed Warning (Equipment Item BW-2H): Speed of vehicle shall be monitored while vehicle is in washer. Triple indicator light shall be mounted visible to driver, interconnected to control circuits to display green light when speed is acceptable, amber light when speed is approaching limit, and red light when speed is excessive. Federal signal audible annunciator and visual strobe alarm shall also indicate excessive speed. Vehicle wash shall deactivate if vehicle speed becomes excessive. If system shutdown occurs, rinse arch shall stay on with a preset time delay. Speed limits shall be adjustable in a lockable control box. f. Detergent Pumping Assembly: Detergent shall be delivered to the suction side wash pump via an adjustable metering pump assembly. The metering system shall include a self-priming duplex diaphragm pump capable of a flow rate up to 1.19 gallons per minute at a working pressure of 30 PSIG. Pump motor to be a permanent magnet with a solid state rectifier in a totally enclosed non-vented frame for operation on 115 volt, 60 hertz, single phase current. Maximum 0.55 AMP motor draw. Suction side of detergent injector pump to be equipped with a 3/8 inch (min.) plastic needle valve to regulate flow of chemical through detergent injection system. Because chemical is being metered on the suction side of the injector pump, the injector pump must be capable of running dry indefinitely. The pump and needle VEHICLE WASHING EQUIPMENT

13 valve are to be housed within a NEMA 4X fiberglass enclosure. This housing is to have provision for padlocking in the closed position. Detergent injection system to incorporate a flow meter mounted to the exterior of the detergent injector enclosure allowing visual inspection of system operation without opening the cabinet. Flow meter to have a scale range of.025 to.25 GPM (nominal). Pump system to be complete with inlet and discharge check valves, and be capable of drawing chemical from the bulk detergent storage tank. Metering pump and blend system shall be capable of proportioning liquid detergent from a mix ratio of 100 to 1000:1 (nominal). 1) Detergent Pump (Equipment Item BW-2R and BW-2P): Provide Inject-O-Meter Model HV182 or approved equal injector pump for direct injection of chemical to prewetting/ detergent arch. Pump to include 1/3 (min.) horsepower electric motor, gear reducer, coupling, and positive displacement pump. Provide standard hose kit for injector pump, foot valves, and all required ancillary items for complete detergent injection. 2) Provide detergent pump manifold piping assembly to facilitate field installation. g. Detergent Storage Tank (Equipment Item BW-2Q): Provide a double wall, 500 gallon capacity, above ground, dual containment, vertical detergent storage tank, model N, as manufactured by Snyder Industries, of Lincoln, NE or approved equal. Maximum exterior diameter: 53 inches. Height of tank shall permit installation and maintenance of tank in new Bus Wash Mechanical Room, as indicated on the contract drawings, with all required plumbing connections. 1) Provide a low level detergent cut off switch in this tank that shall shut down the wash system in the event of low detergent level. 2) Provide leak detection probe and alarm for detergent storage tied into control panel. h. Identification Plates and Tags: All panels and equipment assemblies shall be provided with ID name tags attached to the panel, control or piece of equipment. Tags shall be constructed of plastic and bonded with epoxy or riveted to the equipment, with data engraved or stamped, for permanent attachment on equipment and shall be Marking Services, Inc., Milwaukee, WI or approved equal. Round plastic hanging tags shall be used for valves and controls not suitable for direct attachment to equipment. i. Safety Tags: Safety tags shall be provided for control panels and equipment as required by relevant machine safety codes and manufacturing standards. Tags shall clearly identify any piece of equipment that starts automatically. 9. Undercarriage Wash Spray Bar (Equipment Item BW-2U): a. Undercarriage spray assemble shall be designed to fit in a 4 wide x 4 deep floor cut-out. b. A stainless steel spray pipe with 12 stainless steel spray nozzles shall be assembled to the underside of a 7 gauge galvanized floor plate. Six nozzles to be direct toward the incoming vehicle and six nozzles to be directed toward the departing vehicle with an adequate spray pattern to cover both sides of undercarriage members. Nozzles to be sized for a total undercarriage flow rate of 44 gallons per minute at 300 PSI. c. Water for the undercarriage spray to be delivered via a 15 HP, PSI, vertical, stainless steel, multi-stage centrifugal Undercarriage Pump (Equipment Item BW- 2T). Pump assemble to include a fabricated structural steel tube, hot dipped galvanized base, suction and discharge isolating ball valves, discharge pressure gauge, check valve, and flex connection to field piping. VEHICLE WASHING EQUIPMENT

14 F. Controls: d. Undercarriage spray system to utilize recycled water. e. Undercarriage floor plate to be anchored to the slab by not less than 8, flat head, ½" diameter, anchor bolts. 1. Wash System: Sequential starting and stopping of vehicle washer and interfacing controls shall be completely automatic, not requiring services of attendant other than for routine servicing, inspection, and maintenance. Items for control shall address the bus wash, wash water and water recycling systems integrated together as a system. Controls shall also be provided for bypass lane spray system. All control panels shall be provided with laminated complete panel wiring drawing stored inside a holding bracket for future reference. a. Manual Override: A manual capability shall be provided to override automatic controls in the event of malfunctions or failure of system, or to permit passage of vehicle through wash lane without being washed. b. Provide emergency shutdown mushroom pushbutton switches (Equipment Item BW-2K) and key operated control circuit shutdown switches for each lane of bus washer. c. Electrical Control Panel (Equipment Item BW-2S): Control panel shall be housed in a NEMA 4X fiberglass enclosure. A through-the-door padlockable mainline non-fused disconnect shall be located for shutdown of electrical functions. The control panel shall be supplied with individual starters and circuit breakers (no fuses) for all system motors. A machine tool transformer shall provide power reduction to 110 volt control circuit. Emergency stop switch on control panel door. The control panel wiring shall be color coded and numbered for easy identification. The control panel shall be completely prewired, and internal wiring shall be terminated at numbered terminal strips. Programmable Logic Controllers shall be as manufactured by Automation Direct, per bus wash manufacturer s requirements. Controllers shall be used for all relay and timing control functions. Electromechanical relays are not acceptable. Programmable controller shall be pre-programmed in standard ladder logic. Programmable controller features shall include diagnostic capability, expandability to 112 inputs or outputs, 700 words of memory, expandable to 1700 words of memory (CMOS, RAM or Prom), modular plug-in construction, snap-on hand held programming panel capable of monitoring logic, timer, counter values, and input and output points, LED lights indicating input and output function shall be provided as a diagnostic tool. All PLC controller, control modules, screens, and software shall be new/current product cycle and not components or software that is in the process of being phased out by the manufacturer. 1) Controls shall be HMI Interface System with the following features, as a minimum: 2) Designed to provide selector switch, pushbutton, timer, input and output status, run-off, maintenance functions, counters, and wash system message displays. 3) Main menu screen will incorporate manufacturer, phone, fax, parts and service numbers, model number of machine, clock timer, wash cycle select options, maintenance screen, vehicle wash and overspeed counters, wash system run, delete/enter, and wash system message display center. a) 8-Inch Color (P/N EZ-S8C-F) b) Display Type: 8.2" STN (128-Color Palette) c) Display Size (Viewing Area): 6.65" x 5.024" (168.9 x mm) VEHICLE WASHING EQUIPMENT

15 d) Screen Pixels: 640 x 480 e) Display Brightness: 90 nits f) Touch Screen: 192 resistive touch cells (16 x 12) g) CPU Type: Motorola Coldfire 32 bit CPU (40 MHz) h) Service Power: 24 VDC (20-30 VDC operating range) i) Agency Approvals: UL j) Operating Temperature: 0 to 40 C (32 to 104 F) k) Storage Temperature: -20 to +60 C (-40 to +140 F) l) Humidity: 10-95% R.H., non-condensing m) Electrical Noise Tolerance: NEMA ICS showering arc ANSI C37.90a-1974 SWC Level C Chattering Relay Test n) Withstand Voltage: 1000 VDC (1 minute), between power supply input terminal and protective ground (FG) o) Insulation Resistance: Over 20 M-ohm, between power supply input terminal and protective ground (FG) p) Vibration: 5 to 55 Hz 2 G for 2 hours in the X, Y, and Z axes q) Shock: 10G for under 12 ms in the X, Y, and Z axes r) User Memory: 512K System RAM Memory, 512K Option RAM Card for Memory Expansion s) 512K Option Flash Card for Memory Backup, 1 Meg Option Flash Card for Memory Backup t) Number of Screens: Up to 999, limited by memory u) Real-Time Clock: Built into panel (PLC clock is still accessible, if available) v) Serial Communications: PLC Port: RS-232C, RS-422A, RS-485A, 15- pin D-Sub (Female) w) Download/Program Port: RS-232C, RS-422A, RS-485A, 9-pin D-Sub (Female) x) Screen Saver: Yes, backlight off 4) Forty-two (42) separate screens shall be provided to completely monitor, select, and diagnose machine functions. All screens shall have lower left-hand corner as an alarm history and indication of alarm functions in real time. The following is a listing of the screens that must be provided with the system. a) Screen 2 - Wash Select Options: All selections are color coded - green for automatic operation, and red for off operation. Options as follows: Chemical Arch Mop Sprays Rinse Arch R.O. Sprays (if applicable) Rear Brush Wash Modes (sides-rear, rear only, sides only - off) Front Brush Wash Modes (front-sides, front only, sides only - off) High Pressure Sprays (auto-all, front only, and wheel only - off) Next Screen - Return to Main Menu. b) Screen 3 - Wash Select Options: Options as follows: Wash pump Detergent pump VEHICLE WASHING EQUIPMENT

16 R.O. Pump (if applicable) Reclaim System High Pressure Wash Undercarriage Rinse Undercarriage (if applicable) Previous Screen - Return to Main Menu. c) Screen 4: Counters: Vehicles Washed Vehicles Overspeed Counter Reset - Vehicles Washed Counter Reset - Vehicles Overspeed Alarms Return to Main Menu. d) Screen 5 - Maintenance Overrides: Screen 5 is designed for the maintenance manager to force on various functions of the wash system, including: Chemical Arch Mop Sprays Rinse Arch Rear Brushes Front Brushes Reclaim System Detergent pump High Pressure Front Sprays High Pressure Wheel Sprays Next Screen - Return to Main Maintenance Menu. e) Screen 6 - Maintenance Overrides - 2: designed to test air control of brush machine including: SR1 and SR2 Air SF1 and SF2 Air Wash Undercarriage Man/Auto Rinse Undercarriage Small Vehicle Pushbutton Reset Default Speed Monitor System - Enabled/Disabled Previous Screen - Next Screen Options. f) Screen 10 - Switch Remake Delays: 1PS (Proximity Switch) Remake Delay Timer 2PS (Proximity Switch) Remake Delay Timer 3PS (Proximity Switch) Remake Delay Timer 4PS (Proximity Switch) Remake Delay Timer Return to Main Maintenance Menu. g) Screen 11 - Data: This is a password protected screen and can be accessed only by supervisor code. Screens Include: Total Vehicles VEHICLE WASHING EQUIPMENT

17 Vehicles Overspeed Alarms History Report Previous Screen - Return to Main Menu. h) Screen 12 - System Clock Adjustment: Clock Settings Include: Depress to Set New Time of Day Set Hour Set Minutes Set Seconds Depress to Set New Date Set Day Set Month Set Year Return to Main Maintenance Menu. i) Screen 13 - Switch On Delay Filters: 1PS (Proximity Switch) On Delay Filter in Seconds 2PS (Proximity Switch) On Delay Filter in Seconds 3PS (Proximity Switch) On Delay Filter in Seconds 4PS (Proximity Switch) On Delay Filter in Seconds Return to Main Maintenance Menu. j) Screen 14: Maintenance Menu, password protected, restricted access. Main Maintenance Menu to include: Wash System Manual Override Wash System Timer Setting PLC Input Status PLC Output Status Proximity Switch - On Delay Filters Proximity Switch - Remake Delay Timers Speed Monitoring Timer Settings Disable - I/O Timer Defaults - Store - Restore Alarm History Time and Date Settings Return to Main Menu. k) Screen 15 - PLC Inputs Status Screen No. 1: PLC input status screens will indicate on/off functions of all input status, including: SR1 Brush Motor Overload SR2 Brush Motor Overload SF1 Brush Motor Overload SF2 Brush Motor Overload Reclaim Pump Motor Overload Wash pump Motor Overload High Pressure Pump Motor Overload l) Screen 16 - PLC Inputs Status Screen No. 2: Input X30 through X37 - are spare inputs. PLC Input Status Screen No. 3: 1PS Proximity Switch VEHICLE WASHING EQUIPMENT

18 2PS Proximity Switch 3PS Proximity Switch 4PS Proximity Switch 1FS Wash High Level Float Switch 2FS Wash Mid-Level Float Switch 3FS Wash Low Level Float Switch 4FS Chemical Low Level Float Switch m) Screen 18 - PLC Inputs Status Screen No. 4: 5FS R.O. Low Level Float Switch (if applicable) 1FL Reclaim Pump Flow Switch (5) Spares and MCR Emergency Stop Enabled Previous Screen - Next Screen. n) Screen 19 - PLC Inputs Status Screen No. 5: 1LS SR1 Extend Limit Switch 2LS SR2 Extend Limit Switch 3LS SR1 Retract Limit Switch 4LS SR2 Retract Limit Switch 5LS SF1 Retract Limit Switch 6LS SF2 Retract Limit Switch Small Vehicle Pushbutton System Disabled Keyswitch Input Previous Screen - Next Screen. o) Screen 20 - PLC Output Status Screen No. 1: Output status screen will include Temporary Force on Touch Button for all functions. In this way, outputs can be forced on from HMI. Screen No. 1: 1SOL SR1 Air Solenoid Valve 2SOL SR2 Air Solenoid Valve 3SOL SF1 Air Solenoid Valve 4SOL SF2 Air Solenoid Valve 5SOL Chemical Arch Sprays 6SOL Rear Brush Sprays (2) Spares Return to Main Maintenance Menu - Next Screen. p) Screen 21 - PLC Output Status Screen No. 2: 7SOL Front Brush Sprays 8SOL Mop Sprays 9SOL Final Rinse Sprays 10SOL R.O. Sprays (if applicable) 11SOL Rinse Undercarriage 12SOL City Water Makeup (2) Spares Previous Screen - Next Screen. q) Screen 22 - PLC Output Status Screen No. 3: R.O. Pump Motor (if applicable) SR1 Brush Motor VEHICLE WASHING EQUIPMENT

19 SR2 Brush Motor SF1 Brush Motor SF2 Brush Motor Reclaim Pump Motor (2) Spares Previous Screen - Next Screen. r) Screen 23 - PLC Output Status Screen No. 4: Wash pump Motor High Pressure Pump Motor (3) Spares Small Vehicle Pushbutton Indicator Light s) Screen 24 - PLC Output Status Screen No. 5: Red Speed Warning Light Amber Speed Warning Light Green Speed Warning Light Audible Signal Horn 13SOL High Pressure Front Sprays 14SOL High Pressure Wheel Sprays 15SOL High Pressure Undercarriage Sprays Chemical Injector Pump Previous Screen - Next Screen. t) Screen 25 - Speed Monitor Timers: 2PS-3PS (Proximity Switch) at 2'-0" per Second 2PS-3PS (Proximity Switch) at 3'-0" per Second 3PS-4PS (Proximity Switch) at 2'-0" per Second 3PS-4PS (Proximity Switch) at 3'-0 per Second Return to Main Maintenance Menu. u) Alarms History Report will display all alarms as programmed into the system. The alarm count screen shall have alarm history - page up, page down, line up, line down, clear, clear all, and exit functions. Alarms include: Low Wash Water Low Detergent Reclaim - No Flow Low Rinse Water CPU Low Battery System Malfunction Sump Low Level SR1 Motor Overload Tripped SR2 Motor Overload Tripped SF1 Motor Overload Tripped SF2 Motor Overload Tripped Wash pump Motor Overload Tripped Rinse Pump Motor Overload Tripped (if provided) Reclaim Pump Motor Overload Tripped VEHICLE WASHING EQUIPMENT

20 High Pressure Pump Motor Overload Tripped S1 Motor Overload Tripped S2 Motor Overload Tripped Vibra-Mop Motor Overload Tripped Amber Overspeed Vehicle Red Overspeed Vehicle Detergent pump Overload Tripped R.O. Pump Overload Tripped (if applicable) R.O. Storage Low Level (if applicable) Emergency Stop Enabled v) Screen 28 - System Timer Settings Menu. Each touch-screen for wash system timer settings menu will prompt a second screen for timer settings. Menu Includes: Wash System Control Chemical Arch Brush Machine Rinse Arch Reclaim System Float Switches High Pressure System R.O. Arch (if applicable) w) Screen 29 - System Controlled Timers: Wash System Controls Entrance Authorization Delay Bay Reset Delay Timer System Max Run Timer Return to Main Menu. x) Screen 30 - Chemical Arch Control Timers: Chemical Arch Max Run Timer Return to Main Menu. y) Screen 31 - Brush Machine Controlled Timers - 1: Rear Brushes On Delay Front Brushes On Delay Front Air Kill Delay Brushes Max Run Timer Next Screen - Return to Main Menu. z) Screen 32 - Brush Machine Controlled Timers - 2: Mop Sprays On Delay Timer Mop Sprays Max Run Timer Previous Screen - Return to Main Menu. aa) Screen 33 - Rinse Arch Controlled Timers: Rinse On Delay Timer Rinse Off Delay Timer Return to Main Menu. bb) Screen 34 - Reclaim System Controlled Timers: VEHICLE WASHING EQUIPMENT