SOW_-_Air_Compressors.docx

AIR COMPRESSOR REQUIREMENTS AND FEATURES

The Bureau of Reclamation needs two air compressors with integrated air dryers that will serve as the primary and secondary source of service air throughout three hydraulic powerplants. Service air is a critical component for hydroelectric powerplants to function. Compressors must be air-cooled, silenced, rotary air compressors with remote monitoring capabilities. The compressor package must include a direct driven, rotary screw compression element, driven by a highly efficient, totally enclosed fan cooled motor, an integrated lubrication and cooling system and integrated oil/water separator built into a sound-insulated bodywork where noise levels are significantly reduced. The silencing enclosure must allow the possibility to have a workplace compressor next to the point of use, minimizing the installation costs and maximizing energy efficiency.

The compressors must be equipped with an equal to Q-Control microprocessor controller with features designed to improve reliability, uptime, and energy efficiency in Quincy's fixed-speed rotary screw air compressors (or equivalent too). Key features must include a minimum 5.7" color display, networking capabilities for up to six compressors, remote monitoring and control via Ethernet and cellular connectivity (Q-Connect), and various control algorithms to optimize performance and reduce operating costs.

Additionally, the air compressors must be provided with an integrated air dryer which removes moisture from the compressed air by cooling the air to near freezing point and automatically draining the condensate.

Air Compressors with integrated air dryer must have at least a 5-year manufacturer warranty.

Air compressors equivalent to Quincy QGD-20 with integrated dryer (Brand name or equal).

Compressors will be delivered to: Bureau of Reclamation, 11056 West County Road 18E, Loveland, CO 80537. Deliveries must be planned in advance. No Friday deliveries.

DIMENSIONS

Air compressor operating weight with integrated air dryer must not exceed 1,300lbs.

Air compressor with integrated air dryer width must not exceed 83 inches.

Air compressor height with integrated air dryer must not exceed 48 inches.

Air compressor depth with integrated air dryer must not exceed 42 inches.

POWER REQUIRMENTS

Voltage must be: 460 Volt / 3 Phase /60 Hertz.

Air compressor’s full load current must not exceed 35amps.

NOISE LEVELS

Air compressor with integrated air dryer noise level must not exceed 69 dB(A) while at maximum operating pressure.

AIR/OIL FILTRATION & LUBRICATION

Air compressor must be able to use QuinSyn-Plus to eliminate customer’s need to store multiple brands of oil due to limited storage capacity.

Air compressor air intake must have at least two stages of dust removal with a filtration capacity of particles > 3µm or less with an efficiency of 99.9% or greater.

Air compressor must have an oil injected rotary screw element.

HEAT REJECTION/RECOVERY

Air compressor with integrated air dryer should have a minimum heat rejection capacity of 48,000 BTU/hr.

AIR COMPRESSOR PERFORMANCE DATA

Air compressor must have a minimum Free Air Delivery (FAD) capacity of 97cfm.

Air compressor must have a rated discharge pressure of 125psi.

Air compressor must have a maximum operating pressure of 132psi.

Air compressor must have less that 2ppm of residual oil content in air.

Air compressor speed/output control shall be pressure based and adjustable in 1 psi increments.

Air compressor must have a maintenance free, gearbox drive resulting in lower drive end bearing temperature and longer bearing lifetime.

Air compressor must have direct gear-driven high performing element eliminating coupling losses and maintenance. (TEFC, IP55 Siemens motor enclosure. Class F insulation, B temperature rise) Air compressor’s rotating components must be totally enclosed and protected against contamination to ensure long and reliable operation.

Air compressor package with integrated air dryer must be completely pre-wired and assembled to minimize the installation work onsite. The integrated refrigerant dryer must be mechanically and electrically connected (no extra power supply required) to the compressor package.

REQUIREMENTS

Air compressor with integrated air dryer must have remote monitoring system capabilities that helps optimize compressed air systems by saving energy and costs as well as provide complete insight of our compressed air network and anticipate any potential problems by warning at the time of incident.

INTEGRATED AIR DRYER PERFORMANCE DATA

Minimum of dual stage filtration of particles > 3µm with an efficiency of 99.9% or greater.

Integrated air dryer must have a minimum Free Air Delivery (FAD) capacity of 97cfm.

Integrated air dryer must have a minimum temperature reduction of 31°F @ a pressure dew point of 68°F @ 100% Relative Humidity (RH).

WARRANTY

Air Compressor with integrated air dryer must have a minimum 5 year manufacturer warranty.

STARTUP/COMMISSIONING

The required delivery date for the air compressors is 60 days after award. Startup/Commissioning will be scheduled after government personnel install the air compressors, which will occur within 24 months of air compressor delivery. Startup/commissioning must be performed by an authorized vendor of the manufacturer per the manufacturer’s specifications.

The government may request startup/commissioning for each air compressor at separate dates and times.