8066V000-00171-Salient_Characteristics_for_PB10-PB12.pdf

Specification for 12 inch, 1.5 – 2HP Portable Blower.

1. General:

Vender shall provide: 10 each -- PB-12A, direct-drive, 3450 RPM blower with 11 x 3 Backward

Curved (BC) fan-wheel, with 1.5 or 2 HP lightweight motor, 70lb total unit weight max, similar to that provided by Cincinnati Fan.

Blower shall be fully wired, assembled, tested and ready for use upon receipt.

2310.7 Requests “best value” bid criteria where the shipyard is not obligated to buy from the lowest bidder but instead the bidder that can provide the best value for the shipyard.

2310.7 engineering purchase approval is required prior to acceptance of bid. Seller must include checklist of all salient characteristics either met or not met as a part of the bid package. A vendor’s bid wherein certain criteria are NOT met will NOT necessarily cause an automatic rejection of the bid.

2310.7 reserves the right to request that a single unit be sent to the shipyard for inspection prior to affirming the purchase of remaining multiple units.

2310.7 engineering receipt inspection is required prior to acceptance by shipyard.

Notify 2310.7 engineer via email or at: 7-3650, or 7-3697, or 7-2317.

2. Motor:

1.5 or 2 HP, 240V/60Hz/1PH, 3450 RPM, SF of 1.15 (or better), NRTL listed motor

TEFC Motor capable of ~120V -240V operation – Prewired for ~240V and all subsequent electrical components sized appropriately for ~240V per NEC standards

Motor’s cooling-fan cover shall be removable for service and held in place by threaded fasteners

3. Fan wheel and fan housing:

AMCA Type B Spark Resistant fan and housing

Aluminum alloy fan-wheel housing

Cast aluminum alloy backward curved (BC) fan-wheel (for reduced noise)

Anti-galling compound shall be applied to motor shaft and fan-wheel

All fasteners shall be coated with an anti-galling compound

The fan-wheel (impeller) shall be statically AND dynamically balanced o Balance adjustments shall be made by metal removal NOT by the addition of mass, i.e.

fasteners, clips, welded weights etc.

o Metal shall NOT be removed from the blades of the fan-wheel (impeller)

Bottom horizontal (BH) discharge configuration

4” to 6” inlet with guard o Standard inlet ready for “slip-on” attachment of duct or adapter, do NOT use bolted flange style or slide-gate damper style connection

4” to 6” discharge with guard o Standard discharge ready for “slip-on” attachment of duct or adapter, do NOT use bolted flange connection

4. Starter and Electrical

Provide NEMA 4x rated starter

Provide manually operated (push button start/stop) starter size 0

Provide overheat protection using heat strip, sized for ~(14 – 15 amps) or nearest commercially available range of operation in accordance with NEC guidelines and motor nameplate data

Provide and attach 10ft of 14AWG SOOW (600V, 90°C rated), 3 conductor (including ground) cable wired to motor controller

Provide and attach (to cable end) impact resistant 250V NEMA L6-20 twist lock three prong male plug.

o Mating plug must also be provided to facilitate connection to shipyard power supply cord.

Parts same or similar to McMaster-Carr #’s 9081T15, and 9081T35.

o Connect and tape mating plugs together on blower cord for shipping.

5. Base and Handle

Provide lightweight aluminum base

Provide lightweight carrying handle (no brittle metals allowed for the handle)

6. Weight and sound limitations:

Weight between 40 and 70 pounds (lighter is preferred, all other aspects remaining the same)

The fan shall produce no more than 84 dB at 4 feet or less while flex-duct is attached

7. Blower Performance:

Provide performance data (including blower curve graph) in delivery package

Performance Curve: Peak of fan curve must manifest at a cfm lower than 400 cfm and static pressure greater than 6”.

~870 cfm @ 1” SP w.c. (0.8 – 1.5” w.c.)

~640 cfm @ 4” SP w.c. (3.2 to 6” w.c.)

~420 cfm @ 6” SP w.c. (4.8 to 9” w.c.)

~180 cfm @ 7” SP w.c. (5.6 to 10.5” w.c.)

8. Documentation and Labeling:

The blowers shall delivered with three hard copies of documentation to include:

Operation and service instructions for motor

Motor specs, brand, serial number, and nameplate data.

Service instructions for the removal and installation of fan-wheel (impeller) o Instructions shall identify the correct wheel pulling tool

Parts list and assembly drawing for the blower assembly, base, and handle.

o The motor may be shown as a single unit

Certified fan performance curve

Noise rating data (dB)

Electrical schematic

Product weight as fully assembled and operational

The fan casing shall have an engraved and/or riveted metal label plate indicating the following:

o Fan rotation arrow o Spark Resistant in accordance with AMCA Std 99-0401, Type B.

o Vendor name, address, phone number o Model number