Attachment__1_Performance_and_Technical_Specs.pdf

Vehicle Exhaust Removal System

Performance and Technical

Specifications 31 Aug 17

1. General:

1.01 SCOPE.

A. The quoter shall provide all labor, materials, and equipment necessary, to remove existing inoperative system and put in working operation a complete system to remove both diesel and automotive exhaust gases, and particulate of operating vehicles within the confines of specified fire station(s). All necessary controls, motors, fittings, louvers, ductwork, blower(s), labor and all other equipment and materials specified shall be part of the quoter’s work. The removed material will be placed on site at the facility.

B. All items of equipment and materials described in these specifications are to be furnished installed and placed into proper operating condition in accordance with good practice and manufacturer’s written or published instructions.

C. All workmanship and materials shall be in accordance with applicable codes and regulations. The quoter must supply a complete system that is designed and operates in compliance with American Conference of Governmental Industrial Hygienists (ACGIH) standard for industrial ventilation IAW Industrial Ventilation Manual VS-85-01 and VS-85-02.Such codes and regulations are to be considered part of these specifications. Ensure all electrical work is completed IAW NFPA 70. The new system must fully comply with NFPA 1500.

D. The quoter shall warranty all materials, equipment and workmanship for a period of one

(1) year from the date of final acceptance of the completed job, against original defects of material and workmanship, improper or insufficient maintenance, excessive wear and deterioration. Repairs shall be made at the quoter’s expense.

E. Quoter shall install a complete automatic disconnect Diesel Exhaust Removal System, that addresses the problem of diesel fumes in the fire department station house that will not interfere with normal day-to-day operations. The system shall be a Sliding Balancer Track Pneumatic type system that has the following performance criteria.

(1) The exhaust removal system must provide approximately 100% complete evacuation of all diesel fumes at the source from start up to exit of the apparatus from the fire station. The diesel exhaust removal system shall be capable of reaching to the undercarriage of the vehicle tailpipe located anywhere from 10 to 75 feet away from the exiting door. The system must be able to accommodate drive through and back in bays to meet all the needs of the fire department.

(2) The system must not affect personnel boarding the apparatus. Hose loops shall not hang any lower than seven feet from the bay floor. The hose assembly shall not touch or drag on the bay floor.

(3) The exhaust system shall not block doorways, exits, and aisles in the apparatus bay, which could endanger the welfare of fire personnel visitors.

(4) To protect the apparatus electrical system from any possible damage, the system quoted shall not incorporate any type of electromagnetic device that requires the apparatus to be utilized as an electrical ground for the systems operation.

(5) Due to the harmful effects of diesel exhaust, the system must be designed and capable of capturing approximately 100% of the exhaust gas and particulate even in the event of a complete power failure. The system shall not detach itself from the apparatus for any reason during a power failure other than normal exiting of the apparatus bay. No exception to this requirement will be allowed.

(6) Vehicle must be able to perform pump checks while connected to the system and capture approximately100% of the diesel exhaust.

(7) Connection of the system to the vehicle must be made from a standing position. No exception to this requirement will be allowed.

(8) Manufacturer must be I.S.O. 9001 certified

1.02 STANDARD PRODUCTS: Equipment and materials provided for the system installation shall be a standard product of manufacturer’s currently engaged in the manufacturing of automatic vehicle exhaust removal systems. Where the requirement calls for a packaged exhaust system to be provided, all items shall be the product of the manufacturer.

1.03 QUALITY ASSURANCE: All workmanship, manufacturing procedures, airflow design, and materials shall be performance guaranteed. If any findings or test studies reveal improper materials, defective components or inadequate performance as outlined in the performance/technical specifications, the quoter shall remove and replace the materials in question.

1.04 PRODUCT DELIVERY, STORAGE, AND HANDLING: The quoter shall be solely responsible for the delivery, storage, and handling of all products. Any equipment placed in storage shall be protected from weather, humidity, temperature variations, dirt, dust, or other contaminants.

1.05 QUOTER QUALIFICATIONS: Quotes will only be accepted from companies that have an established reputation in the field of manufacturing and installing Diesel Exhaust Removal systems. The quoter must be established in the business of Diesel Exhaust Removal Systems for a minimum of no less than eight- (8) years. Bidder Quoter shall show proof that their system has been field tested and proven by supplying a list of not less than 1 reference to include a phone number and contact name.

2. PRODUCTS:

2.01 SYSTEM MANUFACTURER:

All equipment specified herein shall be a standard product of the manufacturer, or an approved equal. An approved equal shall be determined by the fire department. The quoter shall provide all labor and materials required to install and operate the Diesel Exhaust Removal System which shall be included in the following performance and technical specifications. Any adjustments involving equipment locations within the building shall be determined in the field and approved by the contracting officer.

2.02 AIR MOVING DEVICES:

A. CENTRIFUGAL FANS:

The fan shall be a direct drive centrifugal type, high pressure, single width, single inlet as required or indicated. Impeller wheels shall be of a radial design for high static pressure performance. Impeller wheels shall be spark resistance and made of aluminum material to prevent static electricity build up. The impeller shall be dynamically and static balanced, and of the non-overloading type to provide maximum efficiency while achieving quiet, vibration-free operation.

The fan motor and assembly shall be mounted on a steel frame for durability in any type of weather conditions. The base shall have four (4) pre punched openings at bottom of fan base for field attachment to either an exterior wall or roof structure.

B. FAN MOTOR AND BEARING:

All 1 to 10 horsepower motors shall be totally enclosed fan cooled (TEFC). The bearings shall be self-aligned; ball bearing type permanently sealed and lubricated. Fan shafts shall be steel and rotate in a non-sparking TEFLON seal to prevent hot gases coming in contact with the motor bearings. The exhaust discharge outlet shall be in compliance with ACGIH recommendations and EPA requirements (min. of 40 ” above roofline). Air intakes, windows, cascade systems, prevailing currents, communication equipment and building aesthetics shall be considered in the final location of the fan. Silencers shall be provided when fan sound decibels exceed 64 Dba.

C. PERFORMANCE:

The Fan Capacity shall be sized as such as to deliver the required CFM at each hose drop the vehicle engine exhaust (based on an airtight connection at tailpipe), lengths of ductworks, elbows, branches, shut down. wyes, etc. which accumulate the static pressure at the field inlet. The manufacturer’s provided fan(s) shall be performance guaranteed.

D. LOCATION:

The fan shall be located on the outside of the fire station as far away from any living quarters as possible so that firefighters would not be disturbed by the system activation.

2.03 DUCTWORK SYSTEM:

A. CONTROLLER TYPE:

The controller shall be manufactured and delivered as an Operating System with one series controller manufactured by the quoter or An equal to the specifications to follow.

B. ELECTRICAL CONTROLLERS:

The electrical controller quoted shall be approved by Underwriters Laboratories (UL) as a complete electrical system for enclosed industrial control panels. No exceptions.

(1) Electrical controllers shall be UL listed/approved and manufactured in accordance with Underwriters Laboratories standard UL-508 enclosed industrial control panels. Enclosures shall be NEMA 12 rated and UL listed as Type 12.

The electrical enclosure shall be provided and mounted in an electrical enclosure to restrict access to internal components of controller by only authorized entry.

C. ELECTRICAL CONTACTORS:

Contactors shall be Allen Bradley Industrial Electrical Contactors, provided with the appropriate adjustable overload relays to meet the proper full load amperage of motor that is outlined in these specifications. The contractor shall conform to the following standards: BS-5424, VDE0660, and be approved by UL Certification as an approved component.

D. CONTROL TRANSFORMER:

Shall be UL listed industrial control circuit transformer with primary and secondary fuse blocks. Transformer shall be provided with multitap primary 208V through 480V, AC, and 24V through 120V secondary.

E. ELECTRICAL TIMER:

Shall be solid state five- (5) minute adjustable timer. The operating logic shall complete this cycle. Input voltage shall be applied to the timer at all times. Upon closure of a normally open isolated start switch, the load energizes and remains energized as long as the switch is closed. When the start switch opens, the timing cycle shall start. At the end of the preset time delay, the load de-energizes and the timer is ready for a new timing cycle. Timer shall be a UL recognized component under file number E65038.

F. ENGINE START SWITCH:

Shall be of an engine pressure sensing type, capable of recognizing the output pressure of any type of motor vehicle exhaust. The electrical contact shall be dry type or not to exceed 24V.

G. ELECTRICAL WIRING:

Shall be run in wire channel to allow for easier identification of wiring circuit and appearance. All wiring circuitry shall meet UL listed for proper bending radiuses and terminations.

H. ELECTRICAL TERMINAL BLOCK:

Shall be 600 V, UL rated and recognized. It shall provide individual connection points for remote controls, power and motor connections.

I. ELECTRICAL WIRING SCHEMATIC:

Shall be provided with each electrical control box supplied. Wiring schematic shall show internal circuitry as well as all primary and secondary connections to the controller.

2.04 DUCTWORK SYSTEM:

A. DUCTWORK TYPE AND MATERIALS:

Shall be UMC class 2 or SMACNA class 11 product conveying. It must meet or exceed criteria for construction and performance as outlined in Round Industrial Duct Construction Standards, SMACNA. Materials of construction unless otherwise specified for all ductwork and fittings shall be a minimum G-90 galvanized sheet metal in accordance with ASTM-A525 and A527. Only when specified, type 304 stainless steel in accordance with ASTM A240 shall be provided.

B. DUCTWORK SIZING AND GAUGES:

All ductwork subject to positive or negative pressure shall be of round, spiral pipe construction, with the range of available sizes not to exceed 20 inches in diameter. Duct gauge shall depend on diameter and a minimum operating pressure of 8 inches water gauge. Acceptable gauge and reinforcement requirements shall be in accordance to the following. Inner duct diameter 4" - 13" dia. shall be 26 gauge standard spiral pipe and 14"

- 20" dia. shall be 24-gauge standard spiral pipe.

C. DUCTWORK FITTINGS:

All exhaust fittings shall be round and have a wall thickness 2 gauges (one even gauge number) heavier than the lightest allowable gauge of the downstream section of duct to which they are connected. Air duct branch entrances shall be fabricated fittings or fabricated duct/tap assemblies. Fittings shall be constructed so that air stream converge at angles no greater than 45 degree. All seams shall be spot welded and if necessary internally sealed to insure airtightness. Tapered body fittings shall be used. No exceptions.

D. DUCTWORK DESIGN VELOCITIES:

Shall be a minimum of 2500 feet/minute transport velocity at 275 cubic feet/per minute volume in metal ductwork at riser clamp which is the standard for design.

E. EXTERNAL DUCTWORK:

Shall be sized for the exact inlet and outlet of the exhaust fan blower. If the fire station is exposed to unusual inclement weather, unusual levels of acid rain or is within 3 miles of salt water, stainless steel shall considered for all exterior duct work components. An exhaust rain cap shall be supplied and manufactured in accordance with EPA standard for free draft rain cap requirements. Included as an integral part of this rain cap shall be a back draft damper to provide protection from rain and other inclement weather or air.

F. EXHAUST PENETRATIONS:

To protect the fire departments best interest ductwork shall only penetrate exterior walls rather than a roof penetration. In all cases when making a wall penetration through masonry or concrete walls it shall be done by the use of a professional core-drilling machine. The core drilling shall be properly sized to reduce the diameter of the opening to the smallest possible size. Only after all possible avenues for wall penetration are exhausted, shall the roof penetration be accepted. The original roofing contractor shall perform the work if possible to insure any warranties on the existing roof are not voided. If the original roofing contractor cannot be notified a licensed roofing contractor shall be used.

2.05 VEHICLE EXHAUST REMOVAL SYSTEM EQUIPMENT APPARATUS BAYS:

A. SCOPE OF SYSTEM OPERATION:

The vehicle exhaust removal system shall capture approximately 100 % of the exhaust emissions directly at the tailpipe of the vehicle and exhaust those emissions to a specified area safely outside the building. The operating controller shall be designed to complete this cycle. A pneumatic operated collection nozzle shall be connected to the motor vehicle’s exhaust tailpipe, when the vehicle is started by the driver, the exhaust fan will automatically energize and vent the toxic gases directly to the outside of the building.

This automatic feature shall be achieved by means of a pressure sensor located inside the exhaust ducting; this pressure sensor shall sense the engines output pressure upon the first stroke of the engine piston and energize the fan starter. The automatic controller shall use an adjustable timer to keep the contactors energized for a designated period of time. Should the operating vehicle not exit the station within the designated preset time period the manual run button on the OS-3 control panel must be engaged, this will keep the fan running while the vehicle is running and must be turned off manually via stop button on OS-3 control panel. The sliding track shall be securely attached to the building structure and supports a flexible hose assembly that moves with vehicle inside the station. As the vehicle nears the exit door, the pneumatic nozzle connection located at the tailpipe shall release its air pressure automatically therefore releasing the nozzle from the tailpipe. This shall be accomplished by means of an uncoupling valve strategically located on the sliding track. After the system releases the vehicle tailpipe at the door, it shall retract passively and smoothly into a convenient storage position. When the vehicle returns to the station, a system operator manually pulls the flexible hose assembly to the entrance door. The system operator holds the pneumatic connection device approximately 18” from the floor and at the door threshold. The system operator, without bending over, attaches the pneumatic connection device just inside the door threshold as the vehicle enters the station, at which time the exhaust fan motor energizes. The vehicle driver momentarily stops the vehicle when the tailpipe is just at the door threshold (a backup man will notify the driver when it is time to stop the vehicle).The system operator, standing straight up with the pneumatic slide valve in his left hand, shall slide the connection device up against a flanged adapter attached to the vehicle tailpipe; the operator will then inflate the pneumatic nozzle around tailpipe. The cycle is completed as the exhaust fan starts and vents the toxic gases with the pneumatic connection nozzle firmly attached to the vehicle exhaust pipe. The vehicle then proceeds to its designated resting position.

B. SLIDING BALANCER TRACK MATERIAL:

The sliding track shall be a one-piece continuous extruded aluminum track in a minimum length of 20 feet. The construction profile shall be of a boxloc type pro-file, which shall adhere to the following dimensions. Track height 3 1/8”, width 1 1/2”, thickness 1/8”. The track material shall be aircraft aluminum alloy type AA-06063. The aluminum track shall be an extruded design that shall incorporate three separate and functioning channels.

The three channels shall be for the following, mounting channel, trolley channel and the boxloc channel. Each of these sections performs a specific function to make the system work effectively. The mounting compartment shall be designed to accept the slider bars (which shall be provided with factory supplied vertical legs and riser clamp duct connection) and allow positioning along the full length of the slotted track mounting channel.

The trolley channel shall allow the trolley/balancer/hose assembly to glide to the door threshold in a safe and effective manner. The boxloc channel shall allow the whole track to remain rigid as it hangs from factory supplied leg supports and also shall provide an area to attach bolts for splicing additional tracks together for systems over 20 feet long.

The overall extruded track lengths shall be 20 foot standard and weight no more than 35 lbs. The track system shall be equipped with end stops that limit travel of flex hose as the vehicle exits the building. The end stop shall be fabricated of zinc plated steel in a U shape form, with a rubber end stop on the impact end. It shall be attached by using a 1/4” molded locking bolt. The end stop shall be secured to the track with no loss than (2) 1/4” bolts and locking nuts located on the underside of the track. For security, a 1/4” bolt shall be drilled through the ends of each track system to insure that the trolley/ balancer assembly(s) rolls no further than the end of the track system.

C. SUPPORT LEGS:

Support legs shall be manufactured and provided by the supplier of the primary exhaust removal system. (Equipment Manufacturer). This is to ensure that the unit is installed as a complete system including the mounting hardware. Support legs are 2” x 2” aluminum cut to proper lengths during installation work. Adjustable mounting bracket kit consists of two brackets to be thru bolted to leg stock. Side bracket kit comes with clamp for leg stock and two side braces for lateral and longitude bracing. Approximately one support left every ten feet. The angle shall be completely adjustable to the leg support and mounted perpendicular and parallel to direction of the track. The typical support angle shall be 45 degrees from the center line of the factory provided support leg. The standard leg shall be capable of meeting a Seismic 4 requirement.

D. DOUBLE TRACK JOINER PLATE:

Should the exhaust removal system require a double track type system due to the length of the apparatus bays, the tracks shall be attached in the following manner. The joiner plate shall be constructed from a minimum of 1/4 ” thick zinc-plated material and be designed to connect two parallel tracks to make a double track system to accommodate an apparatus bay over 40 feet in length. The joiner plate shall be 10” x 8” flat zinc-plated steel and designed to attach the two tracks to a single factory supplied support leg. The steel plate shall have (6) 3/8” holes drilled 6 7/8” apart to accommodate the slider bar provided with factory sup-port legs. The joiner plate shall have two slider bars attached to the plate and shall be located on the outside edges of plate, these slider bars shall fit into the boxloc track mounting channel for a simple and secure attachment of the plate to boxloc track. The center portion of the joiner plate shall provide attachment for the factory supplied support leg.

E. TRACK SPLICING ASSEMBLY:

The track splicing assembly shall be fabricated for the sole function of connecting two extruded aluminum boxloc sliding tracks end-to-end. Track splice shall be manufactured of galvanized steel in two parts and utilized as a clamping device. This clamp shall accurately secure both tracks together in a fashion, which shall eliminate any possibility of obstructing the trolley assembly as it passes through this connection point of track system. Connecting length of splice shall be a mini-mum of 15 3/4" long and fabricated of 14 gauge material. Four 1/4" bolts with lock nuts shall pass directly through internal partition of boxloc track. The splicing sleeve shall fit externally around the outside dimension of extruded aluminum track profile.

F. RISER CLAMP ASSEMBLY:

The riser clamp shall be fabricated as a one piece welded assembly and manufactured to create the transfer of the hard spiral pipe joined at the top and flexible duct connection at the bottom. The riser clamp shall be pre-drilled to mount an air regulator assembly for the pneumatic nozzle and to accept airlines that pass through airtight seals mounted to riser pipe. A slider bar and associated hardware shall be provided with riser clamp assembly.

Sizes of the riser clamp will range from 3" - 6 ” diameter to match the output velocity of the vehicles that will park in that station.

G. ACCUTRACK TROLLEY / BALANCER ASSEMBLY:

The trolley assembly shall be manufactured as a two piece galvanized steel assembly including bumper stops at each end. Fixed to the side of the trolley are solid steel pins, which shall be for load carrying bearings that are sealed and permanently lubricated. The Load carrying bearings shall travel internally in track trolley channel. Two additional permanently lubricated trolley wheels shall be provided on bottom side of the track to reduce wobble of trolley as it conveys the hose assembly to the door threshold. A release plate shall be attached to the chassis of the trolley to smoothly energize the uncoupling release valve when the trolley-balancer assembly approaches the door threshold. The system balancer assembly shall be a self-adjusting weight spring tension balancer with a lifting capacity of no less than 31 Lb. The balancer shall have a minimum diameter stainless steel cable of .080 and a safety link connection. The system supplier shall manufacture the balancer and trolley for the sole purpose of conveying the flexible hose to the door threshold for automatic release of the system. Only a stainless steel balancer cable will be accepted. No exceptions.

H. REGULATOR ASSEMBLY:

The regulator assembly shall be constructed of cast aluminum and refinished with black epoxy coating for durability. The regulator shall safely operate with an in-put pressure of 0 - 200 psi; the output pressure shall be preset at 15 psi. The regulator shall be attached to each Riser Clamp Assembly/Hose Drop or to the boxloc track to allow for independent adjustment of each pneumatic nozzle. The regulator shall also be provided with needle type adjustment gauge that is clearly marked with the proper operating range of system, and which can be visibly read from standing on the bay floor.

I. UNCOUPLING VALVE ASSEMBLY:

Shall be provided to activate the release of the pneumatic nozzle connection located on vehicles exhaust pipe. The valve shall be single direction action and affixed to a mounting bracket, which can be easily positioned and adjusted along the full length of the extruded aluminum track profile. The mounting bracket shall be formed from a minimum of 16 gauge galvanized steel and designed to fit snugly over the top of the boxloc track system.

A 1/2 ” opening shall be centered to the top side of bracket to accommodate a 1 ” x 1/2 ” bolt with a 1/2 ” plated 1 1/2 ” long bar providing the secure attachment of Uncoupling

Valve when system is put into service. The release valve shall be set for the maximum exiting speed of the vehicle.

J. UPPER FLEXIBLE HOSE:

Hose shall be flexible exhaust hose manufactured for the sole purpose of venting high temperature exhaust gases, which are produced by internal combustion engines. The flexible hose shall be designed strictly for the harsh environment of rapid response and auto-release of a vehicle exhaust tailpipe. Hose shall range from 3” - 5” diameters with varying lengths depending on the system length required ranging from 20 - 43 feet without joining or splicing connections. Hose material shall be high temperature synthetic rubber impregnated into a high temperature laminated fabric with a minimum overlapping thickness of 2 7/16”. This construction of hose must be capable of operating at continuous temperatures of 400 degrees F and intermittent temperatures of 500 degrees F such as are experienced when pump checks are performed inside the station.

Independent testing by a recognized UL laboratory must accompany this quote as proof of performance claim. Wire Helix shall be bound and protected in laminations of hose winding. This shall be accomplished in a fashion, which eliminates any possibility of personnel coming in contact with an exposed hot metal helix. The hose shall further protect the internal wire helix from heat buildup and in turn add increased visibility to personnel. Wear strip shall be 9/16” wide and be provided as a safety yellow color. The bend radius of the high temperature hose shall be no lesser then 1.5 times the diameter of hose to insure that hot gases be restricted as they pass through the system.

K. LOWER HOSE ASSEMBLY:

Shall be a rigid 3”-5" diameter by 2 foot long section of yellow and black hose identical in appearance to the upper hose assembly. Lower hose shall support the pneumatic connection nozzle and chrome reducing elbow in a rigid fashion as to allow for the operator to place hose collection nozzle onto the tailpipe without bending over. Lower hose is the only section of hose which shall disconnect from the upper hose assembly and act as a safety disconnect in the unlikely event the nozzle gets entangled.

L. SAFETY DISCONNECT COUPLING:

A coupling shall be incorporated in the design of the system enabling the lower two foot hose assembly to separate from the upper hose assembly thus reducing the possible chance of damage to system, in the unlikely event the exhaust connection nozzle assembly may become entangled. This device shall consist of two spun aluminum collars connected by an ergonomic round handle. The release tension of this device shall separate the two at no greater than 88 Lb. This is considered a safety requirement and any system quote must incorporate a safety disconnect. No Exceptions.

M. COLLECTION NOZZLE ASSEMBLY:

The nozzle shall provide a substantially air tight seal around exhaust tail pipe when connected thus allowing for 100% source capture. The seal shall not allow for escape of life threatening exhaust gases, which may be present during the following conditions. If vehicle’s engine is accelerated above normal idle resulting in an exhaust velocity greater than 5000 feet per minute or in the event that the output velocity or CFM of the exhaust exceeds the manufacturers normal capture velocity or CFM of exhaust system. The Nozzle shall automatically adjust its internal orifice to accept any tail pipe ranging from one inch through six-inch diameter. The quoter of the nozzle shall quote, if required, both maximum diameter nozzles ranging from 4.75" diameter to 8.25" diameter. The nozzle pressure shall not exceed 15 psi. when connected to the vehicles tailpipe. Nozzle construction shall be high temperature synthetic rubber, vulcanized to a high temperature synthetic fabric. A NOMEX inner liner shall be provided for the primary temperature source at the tailpipe and also act as a friction barrier. The chrome-reducing elbow that connects to the connection nozzle shall be fabricated using continuous welded construction. This important feature eliminates the escape of any potentially lethal exhaust gases and must provide for a smooth air flow transition from connection nozzle into the high temperature flexible hose. The angle of transition shall be no less than or greater than 67 degrees from the center line of reducer. The chrome-reducer shall incorporate a primary expanded metal debris screen, which is permanently affixed by welded seams to the inside opening of exhaust fitting. Since this item is a point of safety for both personnel and the system itself, no exception will be tolerated for this point.

N. HOSE SADDLE:

A hose suspension saddle shall be a steel elbow specifically manufactured for the sole purpose of suspending high temperature flexible hose. The design of the saddle shall smoothly transition the direction of the hose during its travel along the track. Securing clamps shall be provided including a link fastener, for the purpose of mounting it to the balancer safety link.

O. SPECIAL FEATURES:

The system must be designed to expand for future apparatus to a tandem vehicle arrangement (one vehicle behind the other) by adding to the proposed system. Systems that require replacement of the existing system or major components to meet a tandem vehicle arrangement shall not be accepted. Unique occasions may require the emergency vehicle to depart from the back door in a drive through station. Overall system design and performance shall be for both back in and drive-through configurations when applicable, this assures door to door coverage and collection of dangerous exhaust gases from the point of connection at the doorway.

P. MANUAL FILL VALVE:

A manual Connection fill valve shall be incorporated into the safety release coupling approximately 4 feet from floor and shall be of a sliding/push button type for manual or automatic release. This valve shall incorporate in its design a handle, which the operator may easily operate in a standing position. The attachment of collection nozzle shall not position the operator’s breathing zone closer than 44" from the exhaust tail pipe. The Automatic release of the connection valve shall be no greater than 3 psi. shift pressure to activate the automatic nozzle deflation. The primary air supply shall be accomplished by means of compression type fitting. The regulated air supply line to collection nozzle shall be designed to safely release from the upper hose at pressure no greater than 80 lbs.

Since this is a safety item no exception will be tolerated.

Q. COMPRESSED AIR FEATURES:

Airlines shall be 1/4" (6mm) OD tubing capable of exposure of high temperature air stream inside the ventilation hose and duct. The airlines shall be fed through the exterior of the hose and ductwork by the use of substantially air tight chrome fittings. Unless a fire station air compressor is to be utilized the quoter shall provide a quiet operating compressor to be located accessible to the vehicle bays. It shall also located so that preventative maintenance can be performed quickly and effectively. The operation of compressor running inside station shall not generate sound decibels in excess of 95 dba.

The compressor shall be equipped with a filter/dryer to insure the conveyance of clean dry air to the pneumatic controls incorporated in the auto-release ventilation system.

R. VEHICLE TAILPIPE MODIFICATION:

The quoter shall supply a drawing for the precise modification procedure for the vehicles to attach to the exhaust removal system. The modification shall vent the exhaust gases at a 90-degree angle on the passenger side of vehicle. Tailpipe modifications requiring a 45-degree angle of exhaust venting shall not be acceptable, so to prevent exhaust blow back into station after the auto-release system disengages from the tailpipe. A flange shall be provided and installed by the quoter as a precisely located stopping point for the collection nozzle.

2.06 VEHICLE EXHAUST REMOVAL SYSTEM EQUIPMENT; MAINTENANCE BAY

A. HOSE REEL ON RAIL:

Shall be constructed of a one-piece continuous extruded aluminum rail in a minimum length of 19 feet (5.79 m). Construction Profile: Rectangular profile, rail height of 10 inches (254 mm) including the rubber seals, rail thickness of 0.20 inch (5 mm), width of 8- ½ inches (216 mm) ID. Bottom Portion of Rail: Continuous slots to accept a rubber seal.

Rubber Seals: Fitted into each side of the rail and shall join in the middle. Rail Material:

Aircraft aluminum alloy Type AA-6063 (ASTM B209/B209M). Rail: Extruded as a one piece design unit to maximize the structural integrity of the rail and to minimize joints which may add to possible leakage of dangerous exhaust gases.

B. MOUNTING SUPPORT:

Support Leg and Mounting Feet: Manufactured and provided by the supplier of primary vehicle exhaust removal system (Equipment Manufacturer). Leg Material: Aircraft aluminum alloy Type AA-6063 (ASTM B209/B209M). Supports shall come standard in 19 feet (5.79 m) lengths. A minimum of one support with appropriate bracing shall be provided for every 10 linear feet (3.04 m) minimum of rail profile. The support legs shall consist of a square tubular profile with dimensions no less than 2 inch (50.8 mm) OD X

0.1 inch (2.54 mm) with 0.4 inch (10mm) fastening hardware provided. Vertical Adjustable Mounting Foot: Capable of attaching the leg assembly to a ceiling with a 30 degree pitch, complete with a slider bar and 3/8 inch (9.5 mm) hardware necessary for mounting to the horizontal rail. Support Leg: Equipped with round tubular zinc-plated steel knee brace with pressed ends in standard lengths of 20 inches (508 mm), 30 inches (762 mm) and 72 inches (1828.8 mm). Angle Completely adjustable to the leg support and mounted perpendicular and parallel to direction of the rail. Typical Support Angle: 45 degrees from the centerline of the factory provided support leg. The standard leg shall be capable of meeting a Seismic 4 requirement.

C. RAIL SPLICING JOINT:

Rail Splicing Joint: Formed steel fitting equal to the internal diameter of the suction rail profile. The splice shall have a wall thickness of no less than 0.190 inch (4.8 mm) in thickness and a length of no less than 8 inches (203.2 mm) from end to end. Rail Splicing: Safely secured by no less than 16- 3/8 inches (9.5 mm) x 1-½ inch (38.1 mm) bolts, nuts and lock washers. Each bolt shall pass through the exterior of the rail profile and splicing joint and shall be secured on the inside by a lock washer and nut. Self-tapping bolts or screws are not acceptable.

D. FLEXIBLE DUCT CONNECTION:

Flexible Duct Connection: With one end formed to fit a 6 inch (152.4 mm) diameter flexible duct pipe located on the top side of the rail. Included with this fitting shall be a flexible hose manufactured of 600 degree F Teflon construction with an overall length of 5 feet (1.52 m). The rail duct connection shall be a 6 inch (152.4 mm) diameter male gasket transition fitting fabricated from 20 gauge galvanized steel (ASTM A653/A653M) and fastened to the rail with ¼ inch (6 mm) self-tapping screws.

E. HRR TROLLEY:

Hose Reel on Rail Trolley: Gantry type trolley designed to carry a SER-450, SER-650, SER-850, or SER-1050 Spring Operated Hose Reel. Trolley shall have sealed ball bearing wheels designed to roll outside on the rail profile flange. The trolley chassis shall be zinc electro plated steel. The chassis shall be fitted with a tapered cone at one end to provide the connection between the hose reel and suction rail via a flexible duct. The exhaust cone transition shall be a tapered slot design which shall fit inside the suction rail profile. The tapered slot shall be equal or exceed in area the diameter of exhaust ventilation hose on the hose reel to which it is attached. Rubber End Stops: Rubber impact bumpers at both the front and rear of the suction rail to stop the trolley at each end of the suction rail and to eliminate metal to metal contact which could damage the trolley assembly.

F. HOSE REEL:

850 hose reel, with 25’ of six-inch hose, rated at 570 degrees.

G. HOSE REEL CONSTRUCTION AND COMPONENTS:

a. All steel components shall be zinc electro-plated steel except for the hose storage drum end plates, which will be Epoxy powder coated yellow.

b. Provide four angle clips, one at each corner for mounting the reel to walls or building steel.

c. Spring cassette must be a sealed enclosure to prevent the coiled spring from coming out of the enclosure if the spring needs to be exchanged.

d. Spring cassette must be on the outside of the reel assembly (not in-between the hose reel side bracket and rotating drum) and held to the reel with four bolts.

e. Spring shall be a one-inch wide heavy duty coil spring with a total lifting capacity of 40 lbs.

f. Hose reel bearing shall be Teflon made and connected at metal duct end connection in between two metal formed collars for smooth operation.

g. Optional high temperature 1200° hose reel bearing shall be made of brass and connected at the metal duct end connection in between two metal collars for smooth operation.

h. Provide two adjustable side support tie bars that both connect the side plates together and acts as the hose stop bar. Field adjust location of bar to match hose diameter used.

i. Provide two steel hose guides bolted to the rotating drum of hose reel. Plastic tubing type hose guides are unacceptable.

j. Access slot in hose reel drum shall be covered with a sheet metal cover made from the same thickness steel as the drum. Cover any exposed edges of drum access slot with a heavy molded trim channel that covers the entire edge.

k. Exhaust Hose construction shall be a single layer of special coated high temperature fabric mechanically joined by a galvanized steel helix with a plastic abrasion protector. UL 94; V-O flame resistant.

l. Temperature rating; 570F degree continuous, 660F intermittent.

H. SPECIAL FEATURES:

Provide a Hose Reel return system that automatically returns the SER-850 & hose to the rear of a drive through bay upon release of the nozzle from the vehicle’s exhaust pipe at the front of the bay. This return system must be able to accommodate vehicles at any location through maintenance bay.

3. TRAINING:

3.03 TRAINING:

The quoter or authorized approved personnel, shall provide training to fire department personnel in the daily use and maintenance of the vehicle exhaust removal system that has been installed and specified herein. The fire department shall be notified at least 2 days prior to the date scheduled for the training course. Training on the operation of the exhaust removal system shall be provided upon completion of the installation. The Training session, shall be performed in person by a recognized representative of the manufacturer of the exhaust removal system, in addition a training video shall be provided to the fire department.

4.0. General Information

4.1. Period of Performance: The period of performance shall be 30 days after the date of contract.

4.2. Hours of Operation/Place of Performance: The contractor is responsible for the replacement of the vehicle exhaust system between the hours of 7:00 A.M. and 5:00 P.M., Monday thru Friday, except Federal holidays or when the government facility is closed due to local or national emergencies, administrative closings, Wing/Family Down Days, or similar government-directed facility closings. The contractor shall at all times maintain an adequate work force for the uninterrupted performance of all tasks defined within this SOW. Service will take place at the 726 ACS, 480 5th Ave Bldg. 2610, Suite 137, Mountain Home AFB, ID.

4.2.1. Recognized Federal Holidays: The contractor will not perform service during the following recognized holidays:

New Year’s Day Labor Day Martin Luther King Jr.’s Birthday Columbus Day Washington’s Birthday Veteran’s Day Memorial Day Thanksgiving Day Independence Day Christmas Day

5.0. Security Requirements

5.1. Pass and Identification Items: Obtain pass and identification items required for contract performance for employees IAW AFFARS Clause 5352.242-9000, Contractor access to Air Force Installations, and AFI 31-113, Installation Perimeter Access Control. The sponsoring organization shall ensure that contractors undergo a National Crime Information Center and National Sex Offender Registry check prior to being issued any installation access media. All contractors requiring access for a period of six months or more will obtain a common access card (CAC) regardless of network access requirements. The CAC must be in their possession at all times while performing contractor duties on a government installation. Upon termination of the contract, individual employment, or otherwise directed, the contractor shall return their CAC to the security manager.

5.2. Listing of Employees: The contractor shall maintain a current listing of employees. The list shall include the employee’s name, social security number and type of investigation if contract work involves unescorted entry to Air Force restricted areas or other sensitive areas designated by the installation commander. The list shall be provided to the CO and sponsoring agency’s security manager. An updated listing shall be provided when an employee’s status or information changes.

5.3. Reporting Requirements: Contractor personnel shall report to an appropriate authority any information or circumstances of which they are aware that may pose a threat to the security of DoD personnel, contractor personnel, resources, and classified or unclassified defense information. Contractor employees shall be briefed by their immediate supervisor upon initial on-base assignment.

5.4. Weapons, Firearms, and Ammunition: Contractor employees are prohibited from possessing weapons, firearms, or ammunition on themselves or within their contractor-owned vehicle or privately-owned vehicle while on Mountain Home AFB.

5.5. Physical Security: The contractor shall be responsible for safeguarding all government property and controlled forms provided for contractor use. At the end of each work period, all government facilities, equipment, and materials shall be secured.

5.6. Access, General Protection and Security Policy, and Procedures: Contractor and all associated subcontractor employees shall comply with applicable installation, facility, and area commander installation and/or facility access and local security policies and procedures (provided by government representative). The contractor shall also provide all information required for background checks to meet installation access requirements to be accomplished by installation Security Forces. Contractor workforce must comply with all personnel identity verification requirements as directed by DoD, Air Force, and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force Protection Condition (FPCON) at any individual facility or installation change, the Government may require changes in contractor security matters or processes.

5.7. Traffic Laws: The contractor and its employees shall comply with base traffic regulations.

5.8. Contractor Personnel: The Contractor agrees to utilize only experienced, responsible and capable individuals in the performance of the work. The Contracting Officer may terminate the contract or require that the contractor remove employees who endanger persons or property, or whose continuity under this contract is inconsistent with the interests of military security.