This master should be used by designers working on Port of Portland construction projects and by designers working for PDX
tenants (“Tenants”). Usage notes highlight a few specific editing choices, however the entire section should be evaluated and
edited to fit specific project needs.
SECTION 233443 - VEHICLE EXHAUST EXTRACTION SYSTEM
PART 1 - GENERAL
1.1
DESCRIPTION
A.
1.2
This section describes vehicle exhaust extraction systems.
RELATED WORK SPECIFIED ELSEWHERE
A.
Section 230500, Common Work Results for HVAC
B.
Section 230529, Hangers and Supports for HVAC Piping and Equipment
C.
Section 230545, Seismic Restraints for HVAC Piping and Equipment
D.
Section 230593, Testing, Adjusting, and Balancing
E.
Section 233113, Low Pressure Ductwork
F.
Section 233400, HVAC Fans
1.3
SUBMITTALS
A.
For systems, equipment, and components specified herein, submit product/material data; shop
drawings; operation and maintenance data; as-constructed data; installation, startup, and testing
manuals; operation and maintenance manuals; and as-constructed drawings.
1.
Shop Drawings: Include details of construction and dimensions.
2.
Product Data: Include performance data.
Use B only if Commissioning Section 019100 is included in the project manual.
B.
1.4
For systems, equipment, and components specified herein, submit commissioning plans and
schedules; checkout, startup, operational, functional and final acceptance test plans, procedures,
checklists, and reports; systems manuals; and operation and maintenance training plans.
QUALITY ASSURANCE
A.
The Contractor shall visit the existing facility and become familiar with the types of vehicles
involved and their operating characteristics.
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B.
Vehicle exhaust extraction systems supplied shall be fully compatible with the vehicles and
shall be designed specifically for the use intended.
C.
All components shall be designed, constructed, and rated for the temperatures, pressures,
stresses and motions required under normal operation and shall perform the required functions
without need for excessive maintenance, adjustment, or parts replacement.
D.
The Contractor shall warranty the equipment and installation to be free of defects in material
and workmanship and application for a period of 2 years.
PART 2 - PRODUCTS
2.1
VEHICLE EXHAUST EXTRACTION SYSTEM
A.
Acceptable Manufacturers: Plymovent, Tykron, Nederman, or pre-bid approved equal.
B.
Sliding Balancer Track System:
1.
The track shall be a one-piece continuous extruded aircraft aluminum Type AA-06063.
Construction profile shall be a Boxloc type profile which adheres to the following
dimensional data: Track height 3'-1/8", track width 1 1/2 inches, and track thickness
1/8 inch.
2.
Telescopic vertical support mounting legs shall be adjustable from 4 feet to 7.5 feet in
1-inch increments.
3.
If telescopic vertical supports exceed 2 feet, horizontal side bracing shall be necessary.
Horizontal side bracing shall be 45-degree tubular steel, 2 feet long by 1 inch in diameter.
4.
The traveling trolley shall be .25-inch electrogalvanized steel with four steel ballbearing
rollers.
5.
Trolley stops shall be .25-inch electrogalvanized steel plate with adjustable threaded bolt.
Trolley stops shall be provided for each end of horizontal track.
6.
The flexible vehicle exhaust hose shall be 4-inch diameter, consisting of four-ply black
high temperature composite impregnated fabric laminated over a spring wire helix bound
with a protective yellow wear strip to allow for high visibility of hanging hose by
personnel. Flame retardant to UL 94 V.O.
7.
Pneumatic Attachment System:
a.
The pneumatic low pressure air regulator shall have easy to read pressure needle
gauge and adjustable regulating knob with locking set screw.
b.
The manual inflation/deflation (MFD) valve shall be pushbutton and provided with
automatic deflation switching and exhaust port for bleeding of pneumatic nozzle.
Provide automatic safety breakaway feature for pneumatic nozzle with this valve.
Provide automatic safety breakaway feature for pneumatic air line which supplies
pneumatic nozzle with this valve.
c.
The uncoupling valve shall be mounted to an easily movable adjustable mounting
bracket to accommodate the varying exit speed of the fire and will automatically
activate the exhaust port of the manual fill and deflation valve described above.
d.
High temperature supply and blow-down pneumatic lines shall be installed within
exhaust hose, and fed through close tolerance eyelets at fill valve, to protect and
eliminate tangling or fouling of pneumatic lines on apparatus.
e.
The pneumatic grabber nozzle shall be made of molded high temperature polymer
composite and constructed of a multi-layer dual air bag lined and reinforced with
VEHICLE EXHAUST EXTRACTION SYSTEM
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8.
9.
10.
11.
12.
C.
kevlar synthetic cord. The nozzle shall have a four-panel inflation pattern capable
of internally expanding to accommodate tail pipes from 1 inch through 6 inches in
diameter. The nozzle and reducing elbow shall not exceed 5 pounds. The nozzle’s
grabbing strength shall be 10 through 15 psi under normal use and shall have a
maximum bursting pressure of 100 psi. The nozzle shall have a grabber lock
positive seal connection between the nozzle and one-piece 45-degree reducing
elbow.
Mechanical Attachment System:
a.
Provide a fully adjustable quick-release locking clamp, protective, high
temperature chloroprene rubber cover, and a high temperature rubber nozzle.
b.
Provide an automatic breakaway safety feature for nozzle and cable.
c.
The cable release system shall be constructed of high grade stainless steel aircraft
cable. Provide switch mechanism to release clamp when vehicles exit the building
and hose trolley reaches the end of the track. Provide an adjustment mechanism to
allow for varying exit speed and location of vehicle tailpipes.
The spring coil balancer shall be totally enclosed cast aluminum with adjustable weight
and cable return control feature. The balancer shall have a lifting capacity of 31 pounds
and a cable made of high-grade stainless steel aircraft cable terminated with a stainless
steel one-way safety link.
The suspension halter (saddle) shall be made from a heavy duty molded rubber cushion
that is attached to the hose by way of a stainless steel hose clamp and D-ring fastener.
The safety disconnect coupling shall be made up of two spun aluminum collars. The two
collars shall be held together by a reusable rubber mating band. The reusable breakaway
mating band shall have a maximum release tension not to exceed 50 pounds. One collar
shall have an expanded metal debris screen to keep foreign material out of exhaust
system end blower.
The duct connection, with brackets, shall connect the hose to the duct system. The swivel
connector shall be sealed.
Straight Rail System:
1.
Provide a suction rail fabricated from 0.210 thick extruded aluminum with 3-inch-wide
rubber lips.
2.
Support legs shall be constructed of Schedule 40 steel pipe or similar material. Provide
horizontal bracing to the structure.
3.
The duct connection shall be fabricated of minimum 10-gauge galvanized steel and shall
slide within the suction rail and provide positive seal to rubber lips. The crab assembly
shall support the duct connection from the suction rail assembly without excessive
friction.
4.
The shock absorber at the exit end of the rail shall cushion the impact of the crab
assembly with piston and springs.
5.
The flexible vehicle exhaust hose shall be minimum 6-inch diameter, consisting of high
temperature synthetic rubber impregnated into a high temperature laminated fabric,
capable of operating at continuous temperature of 400ºF and intermittent temperature of
500ºF. Wire helix shall be reinforced and internal to hose material.
6.
Refer to sliding balancer track system above for spring coil balancer, pneumatic
attachment system, mechanical attachment system, and safety disconnect coupling.
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PART 3 - EXECUTION
3.1
INSTALLATION
A.
Install in accordance with the manufacturer’s instructions.
B.
Support equipment from building structures and provide seismic restrains as detailed on the
drawings and in accordance with Sections 230529 and 230545.
C.
The Contractor shall ensure that adjustment and startup shall be supervised by a factory-trained
representative and witnessed by the Port. Notify the Port a minimum of 48 hours in advanced
of startup.
Choose 3.2 or 3.3. Use 3.2 if Commissioning Section 019100 is included; otherwise use 3.3.
3.2
COMMISSIONING
A.
3.3
Commission systems, equipment, and components specified herein.
TESTING
A.
Check out, start up, and test systems, equipment, and components specified herein.
END OF SECTION 233443
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