Air Compressors.pdf

NOAA SHIP RONALD H. BROWN

(R-104)

2/08/2012

MED/JAL

SHIPBOARD AIR COMPRESSORS AND AIR DRYER

1.0 Provide two (2) each air compressors in accordance with the following technical requirements:

1.1 Power: 460V, 3 Phase, 60 Hz.

1.2 Capacity: Minimum 88 CFM Free Air Delivery

1.3 Operating Pressure: 150 PSIG

1.4 Duty Cycle: 100%

1.5 Detailed Requirements:

1.5.1 Configuration: base-mounted, two-stage, four cylinder, reciprocating air compressor

1.5.2 Lubrication: Pressure Lubrication by a positive

displacement oil pump for all critical wear parts.

1.5.3 Bearings: Tapered rolling bearings.

1.5.4 Crankshaft: Rifle drilled, counterweighted ductile iron

1.5.5 Construction: Cast Iron Crankcase, cylinders, and heads

1.5.6 Drive: V Belt Drive with enclosed OSHA belt guard. Belt pulley to be cast iron and balanced.

1.5.7 Motor: 25 HP, TEFC

1.5.8 Load free starting

1.5.9 Spin on oil filter

1.5.10 Inlet air filter/silencer, 10 micron

1.5.11 Individual valve pockets

1.5.12 Disc type valves

1.5.13 Air cooled after cooler with moisture separator and trap.

1.5.14 Vibration Isolators

1.5.15 Controls: LVD Dual Control. Duplex Control Panel with Dual

Power Supply for automatic alternation. To be shipped loose for field installation by others.

1.5.16 Warranty: 5 years

2.0 Provide a spare parts kit for the air compressors that include the following components.

Belt 12 ea.

Oil filter 6 ea.

Air filter 4 ea.

Gasket plater 2 ea.

Oil gauge assy 1 ea.

Breather assy 1 ea.

O-ring 4 ea.

Oil pump repair kit 1 ea.

Bearing carrier assy 1 ea.

Piston ring set LP 1 ea.

Piston assy LP 1 ea.

Conn rod assy LP 1 ea.

Piston ring set HP 1 ea.

Piston assy HP 1 ea.

Conn rod assy HP 1 ea.

Conn rod insert 2 ea.

Head assy 1 ea.

Suction valve assy 2 ea.

Discharge valve 3 ea.

Unloader assy 1 ea.

2/08/2012

Hydraulic unloader 1 ea.

Oil (OEM Approved) 5 Gallons

3.0 Provide one (1) each refrigerated air dryer in accordance with the following technical Requirements:

3.1 Power: 460V, 3 Phase, 60 Hz.

3.2 Capacity: Rated at 200 scfm @ 38 degree F Pressure Dew Point

3.3 Max Pressure: 230 psig

3.4 Air in/out connections: 1 ½ inch NPT

3.5 Dimension Restrictions: 39” high x 34 in. wide x 32 in. deep

3.6 To include pre-filter

3.7 Heat exchanger, to be made of 316SS

3.8 Two-stage separator/filters

3.9 Two cleanable, stainless steel orifice tubes (10-micron mechanical separation for removing bulk liquids and solids)

3.10 Coalescing fiber media (to capture solid and liquid particles to

3-micron in size)

3.11 Automatic on demand drain with solid-state sensor

3.12 To be volume sensing (works on demand)

3.13 High Level Alarm (failure to discharge)

3.14 Refrigerant System

3.14.1 Non-cycling, direct expansion type

3.14.2 ambient temperature range of 45 to 110°F

3.14.3 R-134a HFC refrigerant

3.15 Electrical construction

3.15.1 Electrical construction to meet UL1995/CSA 22.2 No. 236-95 and meet CSA and CE approvals.

3.15.2 Compressor and fan motors are protected with overloads.

3.15.3 To include a full voltage starter, and a fused and

grounded control circuit.

3.16 Instrumentation and Controls Features

3.16.1 Service reminder mode

3.16.2 Operation monitor(operator is alerted if a fault condition occurs and, identifies fault)

3.16.3 Manual on/off, Schedule on/off, and Drain push-to-test buttons

3.16.4 Power-on and compressor-on indicator lights

3.16.5 Operator alert light – is to indicate that service is

required or there is a refrigeration system or drain fault

3.16.6 Dew point temperature indicator

3.16.7 Operator interface with readouts for: current time, operating status, time-to-service, total operating hours, active faults

3.16.8 NO and NC alarm contacts with RS-232 output to allow remote monitoring of dryer operating status, settings and active faults

3.17 The dryer is to be supplied completely assembled, piped, and wired in an epoxy powder coated cabinet with legs. Dryer is to be performance tested prior to delivery and be ready for start-up after power connections are made.

2/08/2012

4.0 Technical Manual Requirements for Compressors and Air Dryer

4.1 Provide four (4) each copies of all technical manuals, plus one ectronic copy in .pdf format. Technical Manual(s) shall include at a minimum the following information:

4.1.1 Installation procedure

4.1.2 Operating procedure

4.1.3 Maintenance procedures with recommended maintenance and overhaul intervals.

4.1.4 Troubleshooting guide

4.1.5 Electrical diagram for control system and power.

4.1.6 Parts identification diagram with a corresponding parts list with part numbers.

End of Specification