Attachment_1_Specifications.pdf

Specification for Self Contained, Mobile high pressure breathing air system

Brand Name: EagleAir

P/N AQ20G3-GS-4I EagleAir® AirQuestSMTTM Trailer-mounted Breathing Air Compressor System – 27.0 cfm, 6000 psig, 20-hp three-phase electric motor drive in the (25-kW) GenSet configuration.

P/N CSSX2-AQ Upgrade to 4-SCBA fill station

P/N ACC-HHR100S Upgrade to include 100-ft. hose reel

P/N ACC-AQLGT-4X500 Upgrade to include Command Light

P/N ACC-15A-AUX-PKG Upgrade to include auxiliary electric outlet package

General Discription

The high pressure breathing air system shall be mounted on a highway ready, dual axle trailer with a 10,000 lb. Gross Vehicle Weight (GVW) axle classification. The actual dry weight shall not exceed 8800 lbs. for most configurations. The air system shall include the high pressure air compressor, driver and/or power supply, air purification system and air storage system with all of the necessary operating controls as specified below. The interior of the enclosure and the operating control panel shall be illuminated. The operating control center of the trailer-mounted breathing air system shall be located at the rear of the enclosure for maximum operator protection. The swing-up access door to the control center shall be designed to provide operator shelter from sun, rain, sleet and snow when opened for operation. All operating and airflow controls and indicators shall be located at the rear of the trailer enclosure and ergonomically arranged to enhance operator safety, comfort, visibility and ease of use. All high pressure air plumbing and fill components shall be rated for 6000 psig working pressure. All high pressure air plumbing connections shall use compression fit design fittings.

Compressor

The ambient air intake and compression shall be through an air-cooled, reciprocating, pressure oil lubricated, four-stage compressor designed for continuous duty at 6000 psig working pressure with a charging rate of 27.0 CFM. Each stage of compression shall be protected with a safety relief valve. Valve inspection covers are provide for the first and second stage cylinders to allow for easy access. All valve assemblies shall be designed so they can be repaired without replacing the entire assembly. The cylinders shall include cooling fins to dissipate heat into the cooling air flow from the compressor’s integral flywheel fan. Individually mounted coolers shall be located after each compression stage to cool the discharged air to 18F. above ambient temperature. Accumulated condensation from cooling the compressed air shall be collected in moisture separators mounted on each stage of the compressor and discharged to an automatic, internal, timed

The compressor control panel shall also include a condensate purge test switch in order to verify proper operation of the automatic condensate drain system on demand.

Diesel Engine Driven Generator and Electric Motor Drive System

The key components and features of the design shall include the following:

The energy required to drive the compressor, operate all operating lights, including a command flood light when specified and meet all electric current requirements shall be generated by an integral, diesel engine driven generator.

The Generator shall include a 39-hp liquid cooled diesel engine and integral shaft mounted 25 kW (continuous rating) generator. To protect the engine’s cooling water radiator, the trailer enclosure shall include a “blister” panel which shall include the sealed gas struts to facilitate the panel to be pulled out effortlessly and allow air flow from the pusher fan on the radiator to be vented to atmosphere.

The complete engine/generator/electric motor/compressor power train shall include a single belt drive and only between the electric motor and compressor. The design shall not require any other power transmission components such as clutch, belts, sheaves, idler pulleys, etc.

The compressor shall be v-belt driven by 20-hp electric motor wired for 60 Hertz Current, 3 phase, 208/230 volts.

The power train shall feature the capability of running the compressor system powered with energy from a building’s electrical power service.

A 15-foot “shore” power cable shall be included to transmit power from the Generator system or a building mounted electrical disconnect to the compressor’s electric motor. Wiring to the electric motor shall be designed to require disconnection when an external power supply is preferred and vice-versa, providing a fail-safe isolation of power sources. Compressor shall provide for 10 kW of spare power with the compressor running.

Diesel Engine Driven Generator Control System

As a minimum, the operating control system shall include the following:

Air pressure switch to automatically shutdown the compressor when the upper pressure set limit has been satisfied.

High compressed air temperature and low oil pressure shutdown switch.

Auto-drain condensate reservoir capacity shutdown switch.

Power source isolation system.

Generator diesel engine high temperature and low oil level shutdown switch.

Generator diesel engine electric start system with magnetic, across-the-line starter, electric motor overload protection and shore power cable.

AirMonitor including CO and H2O electronic detectors with pre-set warning and shutdown limits.

Air Purification System

The high pressure air purification system shall be a multi-chamber arrangement that utilizes disposable cartridges manufactured to provide breathing air that meets or exceeds NFPA and CGA Grade "E" specifications and all other equivalent and recognized standards in use worldwide. All system components shall be rated for 6000 psig working pressure with a four-to-one safety factor.

All chambers in the system shall be constructed of 304 stainless steel to enhance safety and corrosion resistance.

The purification system shall be sized to process 85,000 cubic feet of air at 70oF and compressed to 6000 psig between cartridge changes.

The system shall include the following:

Final separator chamber connected to the automatic condensate drain system.

Check valve to prevent back pressure to the compressor.

One (1) 33” desiccant cartridge chamber.

One (1) 33” purifier cartridge chamber.

Pressure maintaining valve to assure that the system is maintained pressurized in order to attain the rated processing capacity of the air purification cartridge(s).

Safety relief valve.

Drain valve to relieve the system pressure for maintenance.

Stem-mounted gauge for system pressure verification.

The system shall be designed so that filling cannot occur in the event that any of the disposable cartridges are not installed. The cartridge chamber bases and cartridges shall be “keyed” to assure that the cartridges can only be installed in the correct position.

High Pressure Breathing Air Storage System

The high pressure air storage system shall meet or exceed all current UN/ISO code requirements and include the number of cylinders specified below. The air storage system shall include the interconnecting piping arrangement selected and be completely factory assembled and tested at maximum working pressure. The air storage system shall consist of Four (4) UN/ISO 6000 PSI cylinders each with a capacity of 509 cubic feet of air at 6000 psig. The piping of air storage shall be arranged for cascade filling.

SCBA/SCUBA Cylinder Containment Fill Station

The mobile fill station shall have the capacity for filling four (4) SCBA cylinders simultaneously or separately. The fill station shall be designed for filling two (2) SCUBA cylinders with a maximum height of 30-½” and a maximum diameter of 7-¾”, including service valve, boot and fill attachment. The enclosure shall be designed to contain the impact of suddenly expanded high pressure air and all displaced fragments in the unlikely event of a cylinder or fill component rupture.

The fill station containment design must be UL® (Underwriters Laboratories) classified and for maximum operator safety certified to meet NFPA 1901-2016 standards. The UL® testing certificate must be included with the bid or request for quotation and included with the operator’s manual when the system is shipped.

SCBA Fill Enclosure and Access Door Control

The fill station loading door must be designed to be trapped behind the fill enclosure cabinet frame when closed and include an automatic, safety interlock to prevent filling unless the loading door is completely closed. A safety relief valve, to prevent over pressurizing SCBA/SCUBA cylinders above 4750 psig for 4500 psig SCBA filling (or 5800 psig for 5500 psig SCBA filling), shall also be included.

The fill station must allow the fill process to be accomplished from the front. The fill station shall be of a design that does not require the operator to have to hold up or otherwise support the weight of the cylinders being filled while connecting them to the fill whips. The front loading door shall be designed so that, when opened, sleeves that hold the SCBA/SCUBA cylinders tilt forward to ease loading and minimize operator fatigue. Two (2) fill whips, each fitted with a cylinder fill adapter and isolation valve, shall be located within the enclosure.

SCBA/SCUBA Cylinder Fill Controls

The SCBA/SCUBA cylinder fill control system shall include a regulated air control panel with all components, devices and piping arrangement necessary to direct supplied compressed high pressure breathing air to the SCBA/SCUBA cylinders being filled.

All high pressure regulators must be designed so that they cannot be accidentally reset in accordance with NFPA 1901 standards. The regulator knob shall be of the “push-to-reset” design that spins freely if accidentally moved.

A cascade control system shall be included for the number of banks specified below. The cascade control system shall permit filling or drawing down each air storage cylinder, independently of each other, while filling SCBA/SCUBA cylinders. An air storage by-pass valve shall be included to permit filling SCBA/SCUBA cylinders from the compressor.

The fill control system shall include an integral retractable air reel with 100-ft. of 6000 psig hose and CGA fitting for filling remote air storage systems.

Trailer and Enclosure

The trailer shall be a dual axle design with a 10,000 lb. GVW highway classification. The trailer shall comply with all federal and state highway safety regulations and include electric brakes, running, rear and brake lights, safety chains, spare tire and a 2-5/16” ball type hitch. A 20 gallon fuel tank and a compressor condensate reservoir shall also be included. Three (3) jack stands shall be provided for stability when stopped for filling operations.

The enclosure housing for all the high pressure air system components shall be a formed aluminum, weather protected assembly and include main access and utility, swing out doors on each side and one (1) swing-up operator control access door at the rear. All metal surfaces on the trailer mounted high pressure air system shall be protected with a scratch-resistant, powder coat red finish.

A Command Light assembly shall be located on the roof of the compressor and drive enclosure. It shall be of aluminum construction with stainless steel actuator shafts with bronze bushings for long life and minimum maintenance. The non-rotating light tower shall be capable of rising from 0 to 120 degrees and include a 4x500 watt light bank. Actuation of the Command light shall be accomplished electrically, via a 12vdc motor, and not require system air or hydraulic power for operation to eliminate leaks. The actuation of the light shall be through a hand-held remote control unit, including a 6’ cable, mounted on the operating and air control operations center located at the rear of the breathing air trailer.

The unit shall include an auxiliary electric outlet box located within the enclosure that shall include four, 15 amp outlets with two for 110V and two for 220V source.

CHARLIE H. MARTINEZ

Logistics Officer Kirtland Fire Emergency Services (KFES)