SECTION 15870

POWER VENTILATORS

PART 1 GENERAL

SECTION INCLUDES

Roof exhausters.

Wall exhausters.

Cabinet [exhaust] fans.

Ceiling exhaust fans.

RELATED SECTIONS

Section 15170 - Motors.

Section 15242 - Vibration Isolators.

Section 15860 - Centrifugal Fans.

Section 15865 - Axial Fans.

Section 15890 - Ductwork.

Section 15910 - Duct Accessories: Backdraft dampers.

Section 16180 - Equipment Wiring Systems: Electrical characteristics and wiring connections.

REFERENCES

AMCA 99 - Standards Handbook.

AMCA 210 - Laboratory Methods of Testing Fans for Rating Purposes.

AMCA 261 - Directory of Products Licensed to Bear the AMCA Certified Ratings Seal.

AMCA 300 - Test Code for Sound Rating Air Moving Devices.

AMCA 301 - Method of Publishing Sound Ratings for Air Moving Devices.

NEMA MG1 - Motors and Generators.

NFPA 70 - National Electrical Code.

NFPA 96 - Installation of Equipment for the Removal of Smoke and Grease Vapors from Commercial cooking Equipment.

UL 705 - Power Ventilators.

SUBMITTALS

Submit under provisions of Section [01300.] [________.]

Product Data: Provide data on fans and accessories including fan curves with specified operating point clearly plotted, sound power levels at rated capacity, and electrical characteristics and connection requirements.

Manufacturer's Installation Instructions.

OPERATION AND MAINTENANCE DATA

Submit under provisions of Section [01700.] [________.]

Maintenance Data: Include instructions for lubrication, motor and drive replacement, spare parts list, and wiring diagrams.

EXTRA MATERIALS

Furnish under provisions of Section [01700.] [________.]

Provide [two] [____] sets of belts for each fan.

PART 2 PRODUCTS

ROOF [EXHAUSTERS] [VENTILATORS]

Manufacturers:

[_________________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

Product Requirements:

Performance Ratings: Conform to AMCA 210 [and bear the AMCA Certified Rating Seal.]

Sound Ratings: AMCA 301, tested to AMCA 300 [,and bear AMCA Certified Sound Rating Seal.]

Fabrication: Conform to AMCA 99.

UL Compliance: UL listed and labeled, designed, manufactured, and tested in accordance with UL 705.

Performance

Air Flow: [_____] cfm ([_____] L/sec) at [_____] in wg ([_____] Pa).

Motor: [_____] hp, [_____] volt, [single] [three] phase, 60 Hz.

Fan Tip Speed:	[_____].

Fan RPM: [_____].

Fan Unit: V-belt or direct driven as indicated, with [spun aluminum] [galvanized steel with baked on enamel] [fiberglass reinforced plastic] [upblast spun aluminum with grease tray] housing; resilient mounted motor; 1/2 inch (13 mm) mesh, 16 gage (2 mm) aluminum birdscreen; square base to suit roof curb with continuous curb gaskets.

Roof Curb: [8] [12] [16] [20] [24] [___] inch ([200] [300] [400] [500] [600] [____] mm) high [self flashing] of [galvanized steel] [aluminum] with continuously welded seams, [built in cant strips] [one inch (25 mm) insulation and curb bottom] [interior baffle with acoustic insulation, curb bottom] [ventilated double wall] [hinged curb adapter], and factory installed nailer strip.

Electrical Characteristics and Components

Electrical Characteristics:

[____] hp ([____] kW).

[____] volts, [single] [three] phase, 60 Hz].

[____] amperes maximum [fuse size] [circuit breaker size] [overcurrent protection].

[____] percent minimum power factor at rated load.

Refer to Section 16180.

Motor:	[Refer to Section 15170.] [NEMA MG1, [____].]

Wiring Terminations:	Provide terminal lugs to match branch circuit conductor quantities, sizes, and materials indicated. Enclose terminal lugs in terminal box sized to NFPA 70.

Disconnect Switch: Factory wired, non-fusible, in housing for thermal overload protected motor [and wall mounted [multiple speed switch] [or] [solid state speed controller]].

Backdraft Damper: Gravity actuated, aluminum multiple blade construction, felt edged with nylon bearings.

Sheaves:	Cast iron or steel, dynamically balanced, bored to fit shafts and keyed; variable and adjustable pitch motor sheave selected so required rpm is obtained with sheaves set at mid-position; fan shaft with self aligning pre-lubricated ball bearings.

WALL EXHAUSTERS

Manufacturers:

[_________________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

Performance

Air Flow: [_____] cfm ([_____] L/sec) at [_____] in wg ([_____] Pa).

Motor: [_____] hp, [_____] volt, [single] [three] phase, 60 Hz.

Fan Tip Speed:	[_____].

Fan RPM: [_____].

Fan Unit: V-belt or direct driven with spun aluminum housing; resiliently mounted motor; 1/2 inch (13 mm) mesh, 16 gage (2.0 mm) aluminum bird screen.

Electrical Characteristics and Components

Electrical Characteristics:

[____] hp ([____] kW).

[____] volts, [single] [three] phase, 60 Hz].

[____] amperes maximum [fuse size] [circuit breaker size] [overcurrent protection].

[____] percent minimum power factor at rated load.

Refer to Section 16180.

Motor:	[Refer to Section 15170.] [NEMA MG1, [____].]

Wiring Terminations:	Provide terminal lugs to match branch circuit conductor quantities, sizes, and materials indicated. Enclose terminal lugs in terminal box sized to NFPA 70.

Disconnect Switch: Factory wired, non-fusible, in housing for thermal overload protected motor [and wall mounted [multiple speed switch] [or] [solid state speed controller]].

Backdraft Damper: Gravity activated, aluminum multiple blade construction, felt edged with nylon bearings.

Sheaves:	For V-belt drives, provide cast iron or steel, dynamically balanced, bored to fit shafts and keyed; variable and adjustable pitch motor sheaves selected so required rpm is obtained with sheaves set at mid-position; fan shaft with self aligning pre-lubricated ball bearings.

CABINET AND CEILING EXHAUST FANS

Manufacturers:

[_________________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

Performance

Air Flow: [_____] cfm ([_____] L/sec) at [_____] in wg ([_____] Pa).

Motor: [_____] hp, [_____] volt, [single] [three] phase, 60 Hz.

Fan RPM: [_____].

Centrifugal Fan Unit: V-belt or direct driven with galvanized steel housing [lined with 1/2 inch (13 mm) acoustic insulation], resilient mounted motor, gravity backdraft damper in discharge.

Electrical Characteristics and Components

Electrical Characteristics:

[____] hp ([____] kW).

[____] volts, [single] [three] phase, 60 Hz].

[____] amperes maximum [fuse size] [circuit breaker size] [overcurrent protection].

[____] percent minimum power factor at rated load.

Refer to Section 16180.

Motor:	[Refer to Section 15170.] [NEMA MG1, [____].]

Wiring Terminations:	Provide terminal lugs to match branch circuit conductor quantities, sizes, and materials indicated. Enclose terminal lugs in terminal box sized to NFPA 70.

Disconnect Switch: Cord and plug in housing for thermal overload protected motor [and wall mounted [switch] [multiple speed switch] [solid state speed controller]].

Grille: Molded white plastic or aluminum with baked white enamel finish.

Sheaves: Cast iron or steel, dynamically balanced, bored to fit shafts and keyed; variable and adjustable pitch motor sheaves selected so required rpm is obtained with sheaves set at mid-position; fan shaft with self-aligning pre-lubricated ball bearings.

PART 3 EXECUTION

INSTALLATION

Install in accordance with manufacturer's instructions.

Secure [roof] [wall] exhausters with [cadmium plated steel] [aluminum] [stainless steel] lag screws to [roof curb] [structure].

Extend ducts to [roof] [wall] exhausters into [roof curb] [structure]. Counterflash duct to [roof] [wall] opening.

Install flexible connections specified in Section 15910 between fan inlet and ductwork. Ensure metal bands of connectors are parallel with minimum one inch (25 mm) flex between ductwork and fan while running.

Provide sheaves required for final air balance.

Install backdraft dampers on inlet to roof and wall exhausters.

Provide backdraft dampers on outlet from cabinet and ceiling exhauster fans and as indicated.

Do not operate fans for any purpose until ductwork is clean, filters in place, bearings lubricated, and fan has been test run under observation.

POWER VENTILATOR SCHEDULE

Drawing Code	F-1	F-2	F-3	F-4

Manufacturer

Model

Fan Type

Hood/Housing

Air Flow Capacity

Static Pressure

Drive

Fan Tip Speed

[Fan] [Motor] RPM

Motor hp

Sound (Sones)

Sound Power

1st Octave

2nd Octave

3rd Octave

4th Octave

5th Octave

6th Octave

7th Octave

8th Octave

Accessories

Curb Size

Damper Size

END OF SECTION