Specifications include, but are not limited to: The contractor shall modify tail pipes as required to accommodate tail pipe nozzle supplied with source capture emergency vehicle exhaust system. The two (2) vehicles shall use a pneumatic Sliding Balancer Track Type system as outlined in the equipment specifications. : When the fire apparatus’s engine is started, pressure sensors located in the ductwork and wired to the control panel shall automatically start the exhaust blower. Function of the vehicle exhaust fume removal system As the vehicle leaves the fire station, the flexible 4” diameter exhaust hose equipped with a pneumatic nozzle shall move towards the exit door along the ceiling mounted aluminum track. The traveling trolley shall glide along the track with a spring coiled balancer that supports the hose. The balancer must keep the exhaust hose away from the exiting apparatus. Mounted to the aluminum track shall be an uncoupling release valve that automatically releases compressed air from the pneumatic nozzle allowing a smooth uncoupling of the nozzle at the threshold of the exit door, regardless of the speed the vehicle may exit the building. Upon the vehicles return to the fire station, the flexible exhaust hose equipped with a pneumatic nozzle is attached to the vehicles exhaust tail pipe and inflated with a manual control by an operator standing in an upright vertically position at the entrance door. When the pneumatic nozzle is attached to the vehicle’s exhaust tailpipe, the exhaust blower will automatically start to assure total collection of exhaust gases prior to vehicle entering the building. The vehicle can then be positioned in its designated parking position. Vehicle Exhaust Fume Removal System Pneumatic Sliding Balancer Track Type Source Capture Emergency Vehicle Exhaust Fume Removal system shall be delivered and installed equal to the following specifications: The track must be extruded aluminum to resist corrosion with channel to accept ball bearing rollers of the traveling trolley. Rubber impact end stops are to be mounted on each end of the track. The traveling trolley shall be galvanized steel assembly with upper ball bearing wheels to fit inside track extrusion and lower ball bearing wheels to fit on outside of track extrusion to prevent rocking or shifting of the trolley as it moves along full length of track.
