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	SECTION 15831
	AIR DOORS
	** NOTE TO SPECIFIER ** This section is based on products of Berner International Corporation, which is located at: 111 Progress Ave. New Castle, PA 16101 Tel: (724)658-3551 Tel/Toll Free: (800) 245-4455 Fax: (724) 652-0682 Email: airdoors@berner.com Website: http://www.berner.com http://www.berner.com [Click Here] for additional information. Berner International Corporation manufactures a complete line of industrial and commercial/retail air doors / air curtains. Our air curtains are available heated or unheated and provide fly/insect control, environmental separation, refrigeration loss, and fume/odor control. Custom engineered air curtains are available for special applications. Our product line also includes strip doors, air entrance systems, and our 'Posi-Flow' fabric ducts. No one else offers Berner's standards of quality, performance, and dependability, not to mention our service. At exterior openings, air doors can resist winds up to 8 MPH and are generally mounted inside building to recirculate warm air, which has risen towards ceiling. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information. A selection guide is available at www.berner.com to suggest models appropriate for typical applications. For additional information or the name of Berner representative in your area, call Berner International Corporation at 800-245-4455 in U.S. or 800-242-4455 in Canada, or visit www.berner.com.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Air doors.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
		A.	Section 06100 - Rough Carpentry.
		B.	Section 05410 - Load-Bearing Metal Studs
		C.	Section 08110 - Steel Doors and Frames.
		D.	Section 08400 - Entrances and Storefronts.
		E.	Section 08500 - Windows.
		F.	Section 08580 - Pass Windows.
		G.	Sections of Divisions 15 and 16 affecting, or affected by, construction activities of this section.
	1.3	REFERENCES
	** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
		A.	AMCA 220 - Air Curtain Units.
		B.	ARI 410 - Forced-Circulation Air-Cooling and Air-Heating Coils.
		C.	NEMA 250 - Enclosures for Electrical Equipment.
		D.	UL 507 - Electric Fans.
		E.	UL 508 - Industrial Control Panels.
		F.	ANSI/NSF 37 - Air Curtains for Entranceways in Food Establishments.
		G.	NFPA 54 - National Fuel Gas Code.
	1.4	SUBMITTALS
		A.	Submit under provisions of Section 01300.
		B.	Product Data : Manufacturer's data sheets on each product to be used, including:
			1.	Preparation instructions and recommendations.
			2.	Storage and handling requirements and recommendations.
			3.	Installation methods.
		C.	Shop Drawings: Indicate installation and connection details.
		D.	Certificates: Indicate compliance to Regulatory Requirements and Performance Requirements.
		E.	Closeout Submittals:
			1.	Operation and maintenance data: Manufacturer's printed instructions for operating and maintaining air curtain components.
			2.	Warranty documents: Issued and executed by manufacturer.
	1.5	QUALITY ASSURANCE
		A.	Manufacturer Qualifications:
			1.	Products in satisfactory use in similar service for not less than five years.
			2.	Manufactured and assembled in the United States of America.
	** NOTE TO SPECIFIER ** Delete agency certifications below not required for project
		B.	Regulatory Requirements: Product compliance with the following regulatory agencies:
			1.	Underwriters Laboratories listing.
			2.	National Electrical Code.
			3.	Canadian Standards Association.
	** NOTE TO SPECIFIER ** Include the following for Delete agency certifications below not required for project
		C.	Certification:
			1.	Unheated Units: Units shall be tested in accordance with AMCA 220 and licensed to bear AMCA Certified Ratings Seal.
			2.	Heated Units: Except for inclusion of heating, units shall be tested in accordance with AMCA 220 and licensed to bear AMCA Certified Ratings Seal.
	1.6	DELIVERY, STORAGE, AND HANDLING
		A.	Store products in manufacturer's unopened packaging until ready for installation.
		B.	Maintain dry, heated storage area for products until installation.
	1.7	SEQUENCING
		A.	Coordinate the installation of wiring and control switches for air doors with the openings and the hardware provided for such openings.
	1.8	WARRANTY
		A.	Manufacturer's Warranty:
	** NOTE TO SPECIFIER ** Select warrantee applicable to products specified and delete portions that may not be applicable.
			1.	Supply manufacturer's standard two-year limited warranty for heated units against defects in workmanship and materials.
			2.	Supply manufacturer's standard five-year limited warranty for unheated units against defects in workmanship and materials.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: Berner International Corp., which is located at: 111 Progress Ave. ; New Castle, PA 16101; Toll Free Tel: 800-245-4455; Tel: 724-658-3551; Fax: 724-652-0682; Email: request info; Web: www.berner.com
	** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
		B.	Substitutions: Not permitted.
		C.	Requests for substitutions will be considered in accordance with provisions of Section 01600.
	2.2	AIR DOORS
	** NOTE TO SPECIFIER ** Berner Models Aristocrat-ASF, Aristocrat-ASN, and Aristocrat-ASR air doors are competitively priced for indoor or outdoor use at entry doors. Aristocrat-ASF is designed for customer entries up to 6 feet wide with door heights up to 9 feet for environmental separation and up to 8 feet for insect control. Aristocrat-ASF air doors can resist winds up to 10 MPH and are generally mounted inside building to recirculate warm air which has risen towards ceiling. Aristocrat-ASN meets requirements of NSF Standard 37 for doors 3 feet and 3-1/2 feet wide with door heights up to 7 feet for insect control. Aristocrat-ASR is designed for service doors up to 6 feet wide with door heights up to 10 feet for environmental separation and up to 9 feet for insect control. Aristocrat-ASR can resist winds up to 13 MPH and can be mounted inside or outside the building. Optimum protection is provided when units are mounted on inside of building, flush to the wall and as close to top of door opening as possible. To ensure peak performance keep air stream free of obstructions. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information. Aristocrat models are standard with a 3/4 HP motor; an optional 1/2 HP motor is available. Aristocrat air doors can be wall mounted or suspended from the ceiling. Maximum recommended mounting height is 8 feet above floor. Electric heated unit should be installed indoors only and require a minimum clearance of 6 feet between the bottom of unit and floor and 4 inches between sides and top of the unit and any combustible material. A minimum of 4 inches is recommended above top for installation and removal of housing.
		A.	Acceptable Products:
	** NOTE TO SPECIFIER ** Select one of the following Berner Aristocrat Models below and delete those not required.
			1.	Berner Model Aristocrat ASF.
			2.	Berner Model Aristocrat ASN.
			3.	Berner Model Aristocrat ASR.
			4.	Construction: Provide factory assembled units of sufficient structural strength to be supported from ends without intermediate support.
			5.	Cabinet:
				a.	Dimensions: Not to exceed 14-1/4 inches (36 mm) height by 13 inches (33 mm) deep.
				b.	Material:
	** NOTE TO SPECIFIER ** Select one of the following cabinet material below and delete the one not required.
					1)	Corrosion resistant Aluminum with polyester white on white painted finish.
					2)	Corrosion resistant Stainless Steel riveted construction, with stainless steel rivets.
	** NOTE TO SPECIFIER ** Tamper resistant fasteners are optional. Delete if not required.
				c.	Fasteners: Tamper-resistant type.
	** NOTE TO SPECIFIER ** Select the motor required and delete the one not required. 3/4 HP motor standard. Optional, 1/2 hp, 3 speed motor available. Insert power requirements on the Schedule.
			6.	Motor: Permanently lubricated and sealed bearings, double extended shafts, continuous duty, with internal thermal-overload protection.
				a.	3/4 hp, ball bearings.
				b.	1/2 hp, 3-speed, sleeve bearings.
			7.	Fans: Balanced forward curved type, double inlet, mounted in matched fan scrolls with aerodynamically formed air inlet venturies.
				a.	Wheels and housing constructed of galvanized steel.
			8.	Discharge Nozzle:
				a.	Provide uniform velocity across width of air door.
				b.	Aperture: 3-1/2 inches (9 mm) slot by width of air door.
				c.	Vanes: constructed of airfoil-shaped aluminum extrusions; air-directional vanes adjustable plus or minus 20 degrees to deflect airflow.
			9.	Air Intake:
				a.	Location: Front.
				b.	Screen: Perforated pattern constructed of the same material used in housing.
	** NOTE TO SPECIFIER ** Filter is optional. Delete if not required.
			10.	Filters:
				a.	Air intake filter re-cleanable aluminum with integral filter clips.
			11.	Heating Elements:
				a.	Electric Heating Coil:
					1)	UL approved.
					2)	Factory-mounted, in factory-wired control compartment in galvanized steel frame, thermally protected.
					3)	Helical coil with point suspension of elements, single or three phase.
					4)	Thermal cutout locks out electric heaters when prolonged abnormal over-temperature conditions exist.
			12.	Controls:
	** NOTE TO SPECIFIER ** Standard controls are based on unit options: Unheated 3/4 hp single speed - standard: switch not included. Unheated 1/2 hp three speed - standard: built-in, on-off, high-med-low switches. Electric heated 3/4 hp single speed - standard: built-in, fan-off-fan/heat switch. Electric 1/2 hp three speed - standard: built-in, fan-off-fan/heat, high-med-low switches. Select options required and delete those not required.
				a.	Switching:
	** NOTE TO SPECIFIER ** For use with Unheated 3/4 hp single speed.
					1)	Manual Switch:
						a)	Factory installed on/off switch.
						b)	Remote mount rotary cam hand-off-auto, 1-1/2 hp at 120V/1, 3 hp at 208V/1, 240V/1, or 480V/1.
					2)	Wall On/Off Switch and Cover Plate: single phase power only, rated for commercial use max 20 amps, mounted in a wall box.
	** NOTE TO SPECIFIER ** For use with Unheated 1/2 hp three speed.
					3)	Unheated Remote Fan Speed Selector Switch: three speed capacity; 1-1/2 hp at 120V/1 and 3 hp at 208V/1, 240V/1 or 480V/1.
	** NOTE TO SPECIFIER ** For use with Electric heated 3/4 hp single speed.
					4)	Electric Heat Remote Fan Selector Switch: single speed capacity - 1-1/2 hp at 120V/1, 3 hp at 208V/1, 240V/1, or 480V/1.
	** NOTE TO SPECIFIER ** For use with Electric 1/2 hp three speed.
					5)	Electric Heat Remote Fan Speed Selector Switch: three speed capacity - 1-1/2 hp at 120V/1, 3 hp at 208V/1, 240V/1, or 480V/1.
	** NOTE TO SPECIFIER ** FOR ALL UNITS: Automatic door switches are suitable for single phase power only and maximum amp draw of 20 amps. Consult factory for 480V options.
					6)	Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door closes. plunger type or roller arm. 120V, 208V, or 240V.
					7)	Reed Switch: Magnetic, requires 24V transformer and time delay.
	** NOTE TO SPECIFIER ** FOR ELECTRIC HEATED UNITS: Thermostat prevents operation of heater when inside air temperature exceeds desired temperature.
					8)	Thermostat: Remote mount thermostat, capacity; 22 amps at 125/277 VAC.
	** NOTE TO SPECIFIER ** FOR ALL UNITS: Time Delay Relay recommended for high traffic openings. Use in conjunction with unit activation switch. One time delay is recommended per air door. Consult factory for applications requiring one time delay to control multiple air doors. Time delay normally 2 minutes revise if required.
					9)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hour delay. Set delay for 2 minutes unless otherwise indicated. 120V, 208-240V, or 480V.
	** NOTE TO SPECIFIER ** Select one or both damper plate and delete the other. Damper plate reduces air velocity.
				b.	Damper plate: mounted on:
					1)	One end of fan housing.
					2)	Both ends of fan housing.
	** NOTE TO SPECIFIER ** Berner Model Aura air doors are suitable for entry doors where a white decorative appearance and quiet operation is desired. They are designed for door heights up to 10 feet for environmental separation and up to 8 feet for insect control. At exterior openings, Aura air doors can resist winds up to 10 MPH and are generally mounted inside building to recirculate warm air which has risen towards ceiling. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information. Model Aura has a 1/2 HP motor. It can be wall mounted, suspended from the ceiling or installed above the ceiling. Maximum recommended mounting height is 8 ft. above the floor. Electric heated unit should be installed indoors only and have a minimum clearance of at least 6 feet between the bottom of the unit and the floor and at least 4 inches between the sides and top of the unit and any combustible material.
		B.	Acceptable Product: Berner Model Aura.
			1.	Construction: Provide factory assembled units of sufficient structural strength to be supported from ends without intermediate support.
			2.	Cabinet:
	** NOTE TO SPECIFIER ** Select Housing size and rear adapter options from the following paragraphs as required for the project. Delete paragraphs not required.
				a.	Dimensions:
					1)	Not to exceed 28 inches (711 mm) height by 24 inches (610 mm) deep.
					2)	Not to exceed 28 inches (711 mm) height by 30 inches (762 mm) deep.
				b.	Rear adaptor:
					1)	Perforated grille.
					2)	Solid.
					3)	Solid with light kit using 10W halogen bulbs.
				c.	Finish: white powder coat textured finish.
	** NOTE TO SPECIFIER ** Insert HP and power requirements on the Schedule.
			3.	Motors: Direct drive, 1600 rpm, 3 speed, resilient mounted, continuous duty, with internal thermal-overload protection.
			4.	Fans: Balanced forward curved type, double inlet, mounted in matched fan scrolls with aerodynamically formed air inlet venturies.
				a.	Wheels and housings constructed of galvanized steel.
			5.	Discharge Nozzle:
				a.	Provide uniform velocity across width of air door.
				b.	Aperture: 2-1/2 inches (63 mm) slot by width of air door.
				c.	Vanes: 7/8 inch (22 mm) minimum high; constructed of airfoil-shaped aluminum extrusions; adjustable plus or minus 20 degrees to deflect airflow.
			6.	Air Intake:
				a.	Location: Front.
				b.	Screen: Perforated steel intake grille.
				c.	Finish: White powder coat textured finish.
			7.	Heating Elements:
	** NOTE TO SPECIFIER ** Required accessory for Electric heat is a 7 position rotary cam switch.
				a.	Electric Heating Coil:
					1)	UL approved.
					2)	Factory-mounted, factory-wired, galvanized steel frame, thermally protected.
					3)	Helical coil with point suspension of elements
						a)	Single phase.
						b)	Three phase.
					4)	Thermal cutout: locks out electric heaters when prolonged abnormal over-temperature conditions exist.
			8.	Controls:
	** NOTE TO SPECIFIER ** Select Selector Switch required for the project from the following paragraphs. Delete the paragraphs not required.
				a.	Switching:
	** NOTE TO SPECIFIER ** Remote Fan Speed Selector Switch is optional for unheated air doors. Select power and motor size and settings required from the following paragraphs. Delete those not required.
					1)	Remote Fan Speed Selector Switch:
						a)	1-1/2hp at 120V.
						b)	1 and 3 hp at 208V/1, 240V/1.
						c)	Settings are high fan / medium fan / low fan / off.
						d)	Settings for electric heat; high fan / medium fan / low fan / off / high fan & heat / medium fan & heat / low fan & heat.
	** NOTE TO SPECIFIER ** Automatic door switches are suitable for single phase power only and maximum amp draw of 20 amps. Consult factory for 480V options.
					2)	Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door closes. plunger type or roller arm. 120V/208V/240V.
	** NOTE TO SPECIFIER ** Magnetic reed switch requires transformer.
					3)	Reed Switch: Magnetic, requires transformer.
	** NOTE TO SPECIFIER ** Time Delay Relay recommended for high traffic openings. Use in conjunction with unit activation switch. One time delay is recommended per air door. Consult factory for applications requiring one time delay to control multiple air doors. Standard with three speed control switch and on/off switch.
					4)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hours delay. Set delay for 2 minutes unless otherwise indicated. 120V/208-240V/480V.
					5)	Thermostat: Remote mount factory installed thermostat, capacity; 22 amps at 125/277 VAC.
				b.	Thermostat Override: Switch prevents operation of heater when inside air temperature exceeds desired temperature.]
	** NOTE TO SPECIFIER ** Insert text below if required to coordinate operational sequence of air door controls.
				c.	Sequencing: [___________________________.]
	** NOTE TO SPECIFIER ** Berner Models CFA and CFC have direct drive; Berner Models CFX and CFY have belt drive. Air doors provide environmental separation at wall openings to control the interchange of heat, fumes, dust, and humidity. At exterior wall openings, they are generally mounted on the inside of buildings to recirculate warm air that has risen towards ceiling; they can also be used at interior openings such as doors to coolers or clean rooms. Note that air doors may not be fully effective where negative air pressure exists on one side of door. Direct drive units avoid maintenance issues associated with belts. Belt drive units allow motor to be placed outside of air-stream and allow fan speed to be changed by replacing sheaves. Refer to product data and wind resistance charts in Berner product literature or website. Select specific models and sizes required for project and obtain data necessary to edit this specification. Edit specification to include only information specific to your project.
		C.	Acceptable Product:
	** NOTE TO SPECIFIER ** Select one of the following Berner Models below and delete those not required.
			1.	Berner Model CFA with direct drive.
			2.	Berner Model CFC with direct drive.
			3.	Berner Model CFX with belt drive.
			4.	Berner Model CFY with belt drive.
			5.	Construction: Provide factory assembled units of sufficient structural strength to be supported from ends without intermediate support. Units shall have split cabinet with removable lower section for access to internal components.
			6.	Cabinet:
				a.	Minimum 14 gauge aluminized steel with baked enamel finish. Color as selected by the Architect from manufacturers standard colors.
				b.	Minimum 14 gauge stainless steel.
				c.	All welded construction.
	** NOTE TO SPECIFIER ** Insert HP and power requirements on the Schedule.
			7.	Motors:
				a.	Direct Drive: 1,160 RPM, totally enclosed air over (TEAO).
				b.	Belt Drive: 1,750 RPM, totally enclosed fan cooled (TEFC).
			8.	Fans:
				a.	Balance forward curved centrifugal type, double inlet, double width design with welded hubs, mounted in matched fan housings with aerodynamically formed air inlet venturies.
				b.	Wheels and housings constructed of galvanized steel.
				c.	Blower wheels driven through flexible couplings. Each blower wheel supported by two permanently lubricated 1 inch (25.4 mm) sealed ball bearings encased in vibration isolating rubber cartridges.
			9.	Discharge Nozzle:
				a.	Provides uniform velocity across width of air door. Shall be mounted on continuous piano hinge to allow 3-way deflection of air stream plus or minus 20 degrees without loss of discharge velocity or opening area.
				b.	Aperture: 4-1/2 inches (114.3 mm) by width of air door.
				c.	Vanes: 3/4 inches (19.05 mm) minimum height; constructed of airfoil-shaped aluminum extrusions.
				d.	Air volume control damper.
			10.	Air Intake:
	** NOTE TO SPECIFIER ** Select top or front air intake and delete the other. Top intake is an option with unheated units and can be used for connections to ductwork or to help recirculate stratified air.
				a.	Location:
					1)	Top.
					2)	Front.
				b.	Screen: Expanded metal with welded frame.
	** NOTE TO SPECIFIER ** Filter is optional. Select type required and delete those not required.
			11.	Air Inlet Filter:
				a.	Flat-faced type, disposable.
				b.	V-bank type, disposable.
				c.	Re-cleanable aluminum with integral filter clips.
				d.	Re-cleanable stainless steel with hinged inlet screen.
	** NOTE TO SPECIFIER ** Select heating element require and delete those not required. Heating elements are optional and should be specified if "wind chill" caused by ambient air is objectionable. Edit below as required and coordinate with RELATED SECTIONS for mechanical and electrical connections.
			12.	Heating Elements:
				a.	Electric Heating Coil:
					1)	UL approved.
					2)	Factory-mounted, in factory-wired control compartment.
					3)	Automatic reset limit control, manual reset limit control, primary magnetic contactors, air flow switch, power terminal board, equipment grounding lug, power fusing, and control transformer.
				b.	Steam Coil:
					1)	Certify per ARI 410.
					2)	Construction: 5/8 inch (15.8 mm) outside diameter copper tube with aluminum fins.
					3)	Characteristics: Design to operate at maximum 150 psig (1,035 kPa) and 366 degree F (185 degrees C) steam.
					4)	Leak-test under water at 350 psig (2410 kPa) dry nitrogen.
					5)	Factory mounted on air intake, protected by expanded metal screen.
				c.	Hot Water Coil:
					1)	Certify per ARI 410.
					2)	Construction: 5/8 inch (15.8 mm) outside diameter copper tube with aluminum fins.
					3)	Characteristics: Design to operate at maximum 250 psig (1,720 kPa) and 300 degree F (149 degrees C) hot water.
					4)	Leak-test under water at 350 psig (2,410 kPa) dry nitrogen.
					5)	Factory mounted on air intake, protected by expanded metal screen.
				d.	Indirect Gas Heater and Duct Transition:
					1)	American Gas Association (AGA) or Canadian Gas Association (CGA) labeled.
	** NOTE TO SPECIFIER ** Select fuel type required and delete the one not required.
					2)	Fuel Type: Provide orifices for:
						a)	Natural gas.
						b)	LP.
	** NOTE TO SPECIFIER ** Select exchanger and burner material required and delete the one not required. Aluminized steel is standard. Specify stainless steel in corrosive environments.
					3)	Heat Exchanger and Burner:
						a)	Aluminized steel.
						b)	Stainless steel.
	** NOTE TO SPECIFIER ** Select separate or single power supply as required and delete the one not required. Separate power supply standard; single point power supply optional. Coordinate with Controls.
					4)	Characteristics:
						a)	120 volt Separate supply voltage, power exhaust vent, 120 volt limit control, 24 volt control voltage transformer, combustion air pressure switch, spark ignited intermittent safety pilot system with electronic flame supervision.
						b)	120 volt Single Point supply voltage, power exhaust vent, 120 volt limit control, 24 volt control voltage transformer, combustion air pressure switch, spark ignited intermittent safety pilot system with electronic flame supervision.
					5)	Independently support each heater at least 1 inch (25 mm) from each opening of factory-installed duct transition. Duct transition constructed of 16 gauge aluminized steel with access panels spanning entire width.
				e.	Direct Gas Fired Heater:
					1)	Fuel Type: Natural Gas.
					2)	Characteristics: Provide minimum turndown ratio of 30:1 stainless steel baffles, non-clogging orifices, ignition system, flame safeguard, gas manifold, valves, and temperature controls.
					3)	Gas Manifold (Train): As required by governing authority.
					4)	Spark ignited intermittent pilot.
			13.	Controls:
	** NOTE TO SPECIFIER ** Control panel is required on all 3 phase systems.
				a.	Control Panel:
					1)	UL listed, industrial type, pre-wired, with components consisting of motor starter, terminal strip, motor overloads, control transformer with 120 or 24 volt fused secondary.
	** NOTE TO SPECIFIER ** Select power supply required and delete the ones not required. Unheated units single power supply standard, heated units separate power supply standard, single power supply optional.
					2)	Single power supply.
					3)	Separate power supply.
	** NOTE TO SPECIFIER ** Select NEMA enclosure required and delete the ones not required. Specify Type 4X enclosure in areas subject to wind driven rain or wash-down type conditions.
					4)	Enclosure: Oil-tight and dust-tight NEMA enclosure with neoprene door gasket:
						a)	Type 4
						b)	Type 12
						c)	Type 13
						d)	Type 4X
	** NOTE TO SPECIFIER ** Select mounting required and delete the ones not required.
					5)	Mounting:
						a)	Remote mounted as indicated on Drawings.
						b)	Unit mounted right end.
						c)	Unit mounted left end.
	** NOTE TO SPECIFIER ** Time delay normally set for 1 minute revise if required. Time delay relay is required for units with gas heaters and recommended at doors which have frequent opening and closing cycles.
					6)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hours delay. Set delay for 1 minute unless otherwise indicated.
	** NOTE TO SPECIFIER ** Select disconnect required and delete the ones not required. Disconnect switch simplifies power shut-off when servicing air door.
					7)	Disconnect Switch: Provide lockable, disconnect switch in control panel. Disconnect shall be:
						a)	Fused
						b)	Non-fused
	** NOTE TO SPECIFIER ** Select factory installed activation device required and delete device not required..
					8)	ON-OFF-AUTOMATIC Switch: Switch allows manual on-off operation or operation controlled by automatic door switch that activates unit when door opens and deactivates unit when door closes.
					9)	Manual Switch: Provide ON-OFF push button operation.
	** NOTE TO SPECIFIER ** Include following to lockout heat on electric or gas heated units.
					10)	Heat-On-Off.
	** NOTE TO SPECIFIER ** Single phase control station required when motor amp draw exceeds the rating of unit activation device (ie. door switch).
				b.	Single Phase Control Station:
					1)	UL listed, industrial type, pre-wired, with UL-listed components consisting of motor starter and terminal strip.
	** NOTE TO SPECIFIER ** Select NEMA enclosure required and delete the ones not required.
					2)	Enclosure: Oil-tight and dust-tight NEMA enclosure with neoprene door gasket:
						a)	Type 4
						b)	Type 12
						c)	Type 13
	** NOTE TO SPECIFIER ** Select mounting required and delete the ones not required.
					3)	Mounting:
						a)	Remote mounted as indicated on Drawings.
						b)	Unit mounted right end.
						c)	Unit mounted left end.
	** NOTE TO SPECIFIER ** Time delay normally set for 1 minute revise if required. Time delay relay is required for units with gas heaters and recommended at doors which have frequent opening and closing cycles.
					4)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hours delay. Set delay for 1 minute unless otherwise indicated.
	** NOTE TO SPECIFIER ** Include following for indirect gas fired heated units requiring single point power supply.
				c.	Dry-type distribution transformer.
	** NOTE TO SPECIFIER ** Include remote activation devices required and delete those not required. Include Remote Activation Devices for indirect gas fired heated units requiring single point power supply.
				d.	Remote Activation Devices:
					1)	Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door is closes.
	** NOTE TO SPECIFIER ** On-off-automatic switch used in conjunction with automatic door switch.
					2)	ON-OFF-AUTOMATIC Switch: Switch allows manual on-off operation or operation controlled by automatic door switch that activates unit when door opens and deactivates unit when door closes.
					3)	Manual Switch: Provide ON-OFF push button operation.
	** NOTE TO SPECIFIER ** Include following to lockout heat on electric or gas heated units.
					4)	Heat-On-Off.
	** NOTE TO SPECIFIER ** Thermostat is recommended with electric and gas heaters.
				e.	Thermostat: Prevents operation of heater when inside air temperature exceeds desired temperature.
	** NOTE TO SPECIFIER ** Berner Models KSA and KSB at exterior openings, can resist winds up to 8 MPH and are generally mounted inside building to recirculate warm air which has risen towards the ceiling. They can also be used at interior openings (e.g., ovens, paint-spray rooms, clean rooms) to prevent interchange of heat, fumes, dust, and humidity. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information.
		D.	Acceptable Products:
	** NOTE TO SPECIFIER ** Select one of the following Berner Models below and delete those not required.
			1.	Berner Model KSA.
			2.	Berner Model KSB.
			3.	Construction: Provide factory assembled units of sufficient structural strength to be supported from ends without intermediate support.
			4.	Cabinet:
				a.	Material:
	** NOTE TO SPECIFIER ** Select one of the following cabinet materials below and delete the one not required.
					1)	Minimum 16 gauge aluminized steel with powder coat finish and aluminum inlet screen, all welded construction. Color as selected by the Architect from the manufacturers standard colors.
					2)	Minimum 16 gauge stainless steel, all welded construction.
	** NOTE TO SPECIFIER ** Tamper resistant construction is optional. Delete if not required.
				b.	Tamper-resistant construction.
	** NOTE TO SPECIFIER ** Select mounting type required and delete the one not required.
				c.	Mounting:
					1)	Provisions for top or wall mounting.
					2)	Provisions for tandem mounting (vertical only).
				d.	Removable top and bottom panels for access.
	** NOTE TO SPECIFIER ** Insert HP and power requirements on the Schedule.
			5.	Motors: 1,750 RPM, double extended shafts with sealed bearings.
				a.	1 speed.
			6.	Fans: Balanced forward curved centrifugal type, double inlet, double width design, mounted in matched fan housings with aerodynamically formed air inlet venturies.
				a.	Construct wheels and housings constructed of galvanized steel.
			7.	Discharge Nozzle:
				a.	Provide uniform velocity across width of air door.
				b.	Aperture: 3-1/2 inches (63.5 mm) by width of air door.
				c.	Vanes: 1-1/2 inches (38 mm) minimum height; constructed of airfoil-shaped aluminum extrusions; adjustable plus or minus 20 degrees to deflect air flow.
	** NOTE TO SPECIFIER ** Use optional air volume control damper when reduction of airflow is required.
			8.	Air Volume Control Damper.
			9.	Air Intake:
	** NOTE TO SPECIFIER ** Select intake required and delete the one not required. Use top intake when noise is an issue or stratified heat. Cannot use top intake with electric, steam, hot water or indirect gas fired heat.
				a.	Location:
					1)	Front.
					2)	Top.
				b.	Screen: Perforated metal with border.
	** NOTE TO SPECIFIER ** Select one of the following materials below and delete the one not required.
					1)	Mill aluminum.
					2)	Stainless steel.
	** NOTE TO SPECIFIER ** Filter is optional. Select type required and delete those not required. Delete if not required.
			10.	Air Inlet Filter:
				a.	Flat-faced type, disposable.
				b.	Flat-Faced, re-cleanable aluminum.
				c.	Flat-Faced, re-cleanable stainless steel.
	** NOTE TO SPECIFIER ** Select one of the following screen paragraphs below and delete the one not required.
				d.	Provide without screen.
				e.	Provide with screen.
	** NOTE TO SPECIFIER ** Heating elements are optional and should be specified if "wind chill" caused by ambient air is objectionable. Edit below as required and coordinate with RELATED SECTIONS for mechanical and electrical connections.
			11.	Heating Elements:
				a.	Electric Heating Coil:
					1)	UL approved.
					2)	Factory-mounted, with factory-wired control compartment.
					3)	Automatic reset limit control, manual reset limit control, primary magnetic contactors, air flow switch, power terminal board, equipment grounding lug, power fusing, and control transformer.
			12.	Controls:
	** NOTE TO SPECIFIER ** Control panel is required on all 3 phase systems.
				a.	Control Panel:
					1)	UL listed, industrial type, pre-wired, with components consisting of motor starter, terminal strip, motor overloads, control transformer with 120 or 24 volt fused secondary.
	** NOTE TO SPECIFIER ** Select power supply required and delete the ones not required. Unheated units single power supply standard, heated units separate power supply standard, single power supply optional.
					2)	Single power supply.
					3)	Separate power supply.
	** NOTE TO SPECIFIER ** Select NEMA enclosure required and delete the ones not required. Specify Type 4X enclosure in areas subject to wind driven rain or wash-down type conditions.
					4)	Enclosure: Oil-tight and dust-tight NEMA enclosure with neoprene door gasket:
						a)	Type 4
						b)	Type 12
						c)	Type 13
						d)	Type 4X
	** NOTE TO SPECIFIER ** Select mounting required and delete the ones not required.
					5)	Mounting:
						a)	Remote mounted as indicated on Drawings.
						b)	Unit mounted right end.
						c)	Unit mounted left end.
	** NOTE TO SPECIFIER ** Time delay normally set for 1 minute revise if required. Time delay relay is recommended at doors which have frequent opening and closing cycles.
					6)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hours delay. Set delay for 1 minute unless otherwise indicated.
	** NOTE TO SPECIFIER ** Select disconnect required and delete the ones not required. Disconnect switch simplifies power shut-off when servicing air door.
					7)	Disconnect Switch: Provide lockable, disconnect switch in control panel. Disconnect shall be:
						a)	Fused
						b)	Non-fused
	** NOTE TO SPECIFIER ** Select factory installed activation device required and delete device not required..
					8)	ON-OFF-AUTOMATIC Switch: Switch allows manual on-off operation or operation controlled by automatic door switch that activates unit when door opens and deactivates unit when door closes.
					9)	Manual Switch: Provide ON-OFF push button operation.
	** NOTE TO SPECIFIER ** Include following to lockout heat on electric heated units.
					10)	Heat-On-Off.
	** NOTE TO SPECIFIER ** Single phase control station required when motor amp draw exceeds the rating of unit activation device (ie. door switch).
				b.	Single Phase Control Station:
					1)	UL listed, industrial type, pre-wired, with UL-listed components consisting of motor starter and terminal strip.
	** NOTE TO SPECIFIER ** Select NEMA enclosure required and delete the ones not required.
					2)	Enclosure: Oil-tight and dust-tight NEMA enclosure with neoprene door gasket:
						a)	Type 4
						b)	Type 12
						c)	Type 13
	** NOTE TO SPECIFIER ** Select mounting required and delete the ones not required.
					3)	Mounting:
						a)	Remote mounted as indicated on Drawings.
						b)	Unit mounted right end.
						c)	Unit mounted left end.
	** NOTE TO SPECIFIER ** Time delay normally set for 1 minute revise if required. Time delay relay is recommended at doors which have frequent opening and closing cycles.
					4)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hours delay. Set delay for 1 minute unless otherwise indicated.
	** NOTE TO SPECIFIER ** Include remote activation devices required and delete those not required. Include following for indirect gas fired heated units requiring single point power supply.
				c.	Remote Activation Devices:
					1)	Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door is closes.
	** NOTE TO SPECIFIER ** On-off-automatic switch used in conjunction with automatic door switch.
					2)	ON-OFF-AUTOMATIC Switch: Switch allows manual on-off operation or operation controlled by automatic door switch that activates unit when door opens and deactivates unit when door closes.
					3)	Manual Switch: Provide ON-OFF push button operation.
	** NOTE TO SPECIFIER ** Include following to lockout heat on electric heated units.
					4)	Heat-On-Off.
	** NOTE TO SPECIFIER ** Thermostat is recommended with electric heaters.
				d.	Thermostat: Prevents operation of heater when inside air temperature exceeds desired temperature.
	** NOTE TO SPECIFIER ** Berner Models Diplomat II air doors are suitable for commercial and retail duty. Designed for door heights from 2 feet to 10 feet for environmental separation and from 7 feet to 8 feet for insect control. At exterior openings, air doors can resist winds up to 12 MPH and are generally mounted inside building to recirculate warm air, which has risen towards ceiling. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information. Model Diplomat II has 1/2 HP motors. It can be wall mounted, suspended from the ceiling or installed above the ceiling. Electric heated unit should be installed indoors only and have a minimum clearance of at least 6 feet between the bottom of the unit and the floor and at least 1 inch between the sides and top of the unit and any combustible material.
		E.	Acceptable Products: Berner Model Diplomat II.
			1.	Construction: Provide factory assembled units of sufficient structural strength to be supported from ends without intermediate support.
	** NOTE TO SPECIFIER ** Diplomat II housing is standard in clear anodized aluminum. Optional finishes are stainless steel, bronze anodized aluminum, or painted steel.
			2.	Cabinet:
				a.	Dimensions: Not to exceed 12-1/4 inches (311 mm) high by 22 inches (559 mm) deep.
	** NOTE TO SPECIFIER ** Select one of the following cabinet material below and delete the ones not required.
					1)	Clear anodized aluminum.
					2)	Bronze.
					3)	Stainless steel
					4)	Aluminum with baked enamel finish, color as selected by the Architect from the manufacturers standard colors.
	** NOTE TO SPECIFIER ** Tamper resistant fasteners are optional. Delete if not required.
				b.	Fasteners: Tamper-resistant type.
	** NOTE TO SPECIFIER ** Insert HP and power requirements on the Schedule.
			3.	Motors: Direct driven, 1600 rpm, three speed resilient mounted, continuous duty, with internal thermal-overload protection and sealed sleeve bearing permanently lubricated.
			4.	Fans: Balanced forward curved type, double inlet, mounted in matched fan scrolls with aerodynamically formed air inlet venturies.
				a.	Construct wheels and housings constructed of galvanized steel.
			5.	Discharge Nozzle:
				a.	Provide uniform velocity across width of air door.
				b.	Aperture: 2-1/2 inches (63 mm) slot by width of air door.
				c.	Vanes: 1-1/2 inches (38 mm) minimum height; constructed of airfoil-shaped aluminum extrusions; locking air-directional vanes adjustable plus or minus 20 degrees to deflect airflow.
	** NOTE TO SPECIFIER ** Nozzle extension is optional. Recommend for all heated and unheated systems installed above a ceiling. Provided 21 inches high suitable for field cutting to length. Aluminum air directional vanes standard, white aluminum multi-blade air discharge grille optional.
			6.	Nozzle Extension:
				a.	Unpainted aluminized steel with airfoil shaped anodized aluminum discharge vanes.
				b.	Anodized aluminum with airfoil shaped anodized aluminum discharge vanes.
				c.	Anodized aluminum with airfoil shaped white aluminum multi-blade air discharge grille.
				d.	Unpainted aluminized steel with airfoil shaped white aluminum multi-blade air discharge grille.
			7.	Air Intake:
				a.	Location: Front.
				b.	Screen: Perforated aluminum with extruded aluminum frame.
				c.	Filter: provide recleanable filter for each intake screen.
	** NOTE TO SPECIFIER ** Edit below as required and coordinate with RELATED SECTIONS for mechanical and electrical connections.
			8.	Heating Elements:
				a.	Electric Heating Coil:
					1)	UL approved.
					2)	Factory-mounted, factory-wired, galvanized steel frame, thermally protected.
					3)	Helical coil with point suspension of elements:
						a)	Single phase.
						b)	Three phase.
					4)	Thermal cutout: locks out electric heaters when prolonged abnormal over-temperature conditions exist.
	** NOTE TO SPECIFIER ** Steam coil designed to operate at maximum 75 psig (517 kPa) and 320 degrees F (160 degrees C) steam. Hot water coil designed to operate at a maximum of 200 degrees F (93 degrees C) hot water.
				b.	Steam/Hot Water Coil:
					1)	Certify per ARI 410.
					2)	Construction: 16 gauge galvanized steel casing, 5/8 inches (15.8 mm) outside diameter copper steam/hot water coil with aluminum fins and seamless copper headers.
					3)	Leak-test at Steam 325 psig (2238 kPa), Hot Water 350 psig (2415 kPa) dry nitrogen.
					4)	Factory mount on air door intake, protected by perforated metal screen.
			9.	Controls:
	** NOTE TO SPECIFIER ** Select controls required from the following paragraphs and delete those not required.
				a.	Switching:
					1)	Manual Switch: factory installed, three speed control switch with on/off switch.
	** NOTE TO SPECIFIER ** Automatic door switches are suitable for single phase power only and maximum amp draw of 20 amps. Consult factory for 480V options.
					2)	Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door closes.
						a)	Plunger type.
						b)	Roller arm.
					3)	Reed Switch: Magnetic, requires transformer & time delay.
	** NOTE TO SPECIFIER ** Time Delay Relay recommended for high traffic openings. Use in conjunction with unit activation switch. One time delay is recommended per air door. Consult factory for applications requiring one time delay to control multiple air doors. Operates on motor voltage or transformer. Select voltage required.
					4)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hours delay. Set delay for 2 minutes unless otherwise indicated.
						a)	24V
						b)	120V
						c)	208-240V
	** NOTE TO SPECIFIER ** Disconnect switch simplifies power shut-off when servicing air door.
					5)	Disconnect Switch:
						a)	30 Amp 1 phase.
						b)	30 Amp 3 phase.
						c)	40 Amp 3 phase.
						d)	60 Amp 3 phase.
	** NOTE TO SPECIFIER ** Diplomat II standard with three speed control switch and on/off switch. Optional for unheated or steam/hot water air doors with these settings: high fan / medium fan / low fan / off. Optional for electric heat with these settings; high fan / medium fan / low fan / off / high fan & heat / medium fan & heat / low fan & heat.
					6)	Remote Fan Speed Selector Switch:
						a)	1-1/2hp at 120V/1
						b)	3 hp at 208V/1, 240V/1
					7)	Thermostat:
						a)	Remote mount, thermostat, capacity; 22 amps at 125/277 VAC.
						b)	Factory installed, thermostat, capacity; 22 amps at 125/277 VAC.
				b.	Thermostat Override: Switch prevents operation of heater when inside air temperature exceeds desired temperature.
	** NOTE TO SPECIFIER ** Berner Model E-ZONE air doors are designed for openings from 2 feet to 8 feet for environmental separation and from 2 feet to 7 feet for insect control. E-ZONE is ideal for pass-thru windows and walk-in coolers. At exterior openings, air doors can resist winds up to 8 MPH and are generally mounted inside building to recirculate warm air, which has risen towards ceiling. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information. Model E-ZONE has 1/5 HP motors. E-ZONE can be wall mounted or suspended from the ceiling. Maximum recommended mounting height is 8 feet above the floor.
		F.	Acceptable Products: Berner Model E-ZONE.
			1.	Construction: Provide factory-assembled units of sufficient structural strength to be supported from ends without intermediate support.
			2.	Cabinet:
				a.	Dimensions: Not to exceed 8-1/2 inches (216 mm) height by 8 inches (203 mm) deep.
				b.	Material:
	** NOTE TO SPECIFIER ** Select paragraph required and delete the paragraph not required. E-ZONE housing standard is aluminized steel, an optional construction of stainless steel is also available.
					1)	Aluminized steel.
					2)	Stainless steel.
				c.	Riveted construction, with stainless steel rivets.
	** NOTE TO SPECIFIER ** Insert HP and power requirements on the Schedule.
			3.	Motors: direct drive, 1600 rpm, resilient mounted, continuous duty, with internal thermal-overload protection and permanently lubricated sealed sleeve bearings.
			4.	Fans: Balanced forward curved cross flow, tangential type with flexible hubs, made of aluminum, mounted in matched fan scrolls constructed of material used in cabinet.
			5.	Discharge Nozzle:
				a.	Provide uniform velocity across width of air door.
				b.	Aperture: 2.375 inches (60.325 mm) slot by width of air door.
				c.	Vanes: 1-1/2 inches (38 mm) minimum high; constructed of airfoil-shaped aluminum extrusions; adjustable plus or minus 20 degrees to deflect airflow.
			6.	Inlet:
				a.	Location: Front.
				b.	Screen: Perforated pattern constructed of the same material used in housing.
			7.	Controls:
				a.	Switching:
					1)	Factory installed variable speed control switch.
	** NOTE TO SPECIFIER ** Select Automatic or Manual disconnect switch as required for the project and delete the paragraph not required.
				b.	Control Accessories:
	** NOTE TO SPECIFIER ** The following two paragraphs are for Automatic Door Switches. Select the switch required and delete the other. Switch automatically activates unit when door opens and deactivates unit when door closes. Magnetic reed switch requires load center.
					1)	Reed Switch: Magnetic with 24V load center.
					2)	Plunger Door Switch: 120/208/240V.
					3)	Manual Switch: Provide START-STOP operation.
	** NOTE TO SPECIFIER ** Insert text below if required to identify the coordinating operational sequence of air door controls.
				c.	Sequencing: [___________________________.]
	** NOTE TO SPECIFIER ** Berner Model EWD air doors are suitable for extra heavy industrial duty and doors up to 30 feet high. At exterior openings, air doors can resist winds up to 30 MPH and are generally mounted inside building to recirculate warm air that has risen towards ceiling. They can also be used at interior openings (e.g., ovens, paint-spray rooms, clean rooms) to prevent interchange of heat, fumes, dust, and humidity. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information.
		G.	Acceptable Products: Berner Model EWD.
			1.	Construction: Provide factory assembled units of sufficient structural strength to be supported from ends without intermediate support. Unit shall have split housing with fans contained within a removable casing.
			2.	Cabinet:
	** NOTE TO SPECIFIER ** Select one of the following cabinet materials below and delete the one not required.
				a.	Minimum 14 gage galvanized steel with baked enamel finish, color as selected by the Architect from the manufacturers standard colors. Welded construction.
				b.	Minimum 14 gage stainless steel, welded construction.
	** NOTE TO SPECIFIER ** Insert HP and power requirements on the Schedule.
			3.	Motors: 1,750 RPM, totally enclosed fan cooled (TEFC). Motors shall be located outside air stream.
			4.	Fans:
				a.	Balanced forward curved centrifugal type, double inlet, double width design with welded hubs, mounted in matched fan housings with aerodynamically formed inlet cones.
				b.	Wheels and housings constructed of heavy gage galvanized steel or epoxy enamel finish.
				c.	Blower wheels shall be driven through flexible couplings. Each blower wheel shall be supported by heavy duty pillow-block bearings with grease fittings.
			5.	Discharge Nozzle:
				a.	Provides uniform velocity across width of air door. Shall be equipped with aerodynamically shaped airfoil air direction vane to allow deflection of entire air stream plus or minus 20 degrees without loss of discharge velocity or opening area
				b.	Aperture: 8.00 inches (203 mm) by width of air door.
			6.	Air Intake:
				a.	Location:
	** NOTE TO SPECIFIER ** Select location required and delete the one not required.
					1)	Top.
					2)	Front.
				b.	Screen: Expanded metal with welded frame.
	** NOTE TO SPECIFIER ** Heating elements are optional and should be specified if "wind chill" caused by moving air under air door is objectionable. Edit below as required and coordinate with RELATED SECTIONS for mechanical and electrical connections.
			7.	Heating Elements:
				a.	Steam Coil:
					1)	Certify per ARI 410.
					2)	Construction: 5/8 inch (15.8 mm) outside diameter copper tube with aluminum fins.
					3)	Characteristics: Design to operate at maximum 150 psig (1,035 kPa) and 366 degree F (185 degrees C) steam.
					4)	Leak-test under water at 350 psig (2410 kPa) dry nitrogen.
					5)	Factory mounted on air intake, protected by expanded metal screen.
				b.	Hot Water Coil:
					1)	Certify per ARI 410.
					2)	Construction: 5/8 inch (15.8 mm) outside diameter copper tube with aluminum fins.
					3)	Characteristics: Design to operate at maximum 250 psig (1,720 kPa) and 300 degree F (149 degrees C) hot water.
					4)	Leak-test under water at 350 psig (2,410 kPa) dry nitrogen.
					5)	Factory mounted on air intake, protected by expanded metal screen.
				c.	Indirect Gas Heater and Duct Transition:
					1)	American Gas Association (AGA) or Canadian Gas Association (CGA) labeled.
	** NOTE TO SPECIFIER ** Select fuel type required and delete the one not required.
					2)	Fuel Type: Provide orifices for:
						a)	Natural gas.
						b)	LP.
	** NOTE TO SPECIFIER ** Select exchanger and burner material required and delete the one not required. Aluminized steel is standard. Specify stainless steel in corrosive environments.
					3)	Heat Exchanger and Burner:
						a)	Aluminized steel.
						b)	Stainless steel.
	** NOTE TO SPECIFIER ** Separate power supply standard; single point power supply, see Paragraph Controls for this product.
					4)	Characteristics:
						a)	120 volt Separate supply voltage, power exhaust vent, 120 volt limit control, 24 volt control voltage transformer, combustion air pressure switch, spark ignited intermittent safety pilot system with electronic flame supervision.
						b)	120 volt Single Point supply voltage, power exhaust vent, 120 volt limit control, 24 volt control voltage transformer, combustion air pressure switch, spark ignited intermittent safety pilot system with electronic flame supervision.
					5)	Independently support each heater at least 1 inch (25 mm) from each opening of factory-installed duct transition. Duct transition constructed of 16 gauge aluminized steel with access panels spanning entire width.
				d.	Direct Gas Fired Heater:
					1)	Fuel Type: Natural Gas.
					2)	Characteristics: Provide minimum turndown ratio of 30:1 stainless steel baffles, non-clogging orifices, ignition system, flame safeguard, gas manifold, valves, and temperature controls.
					3)	Gas Manifold (Train): As required by governing authority.
					4)	Spark ignited intermittent pilot.
			8.	Controls:
	** NOTE TO SPECIFIER ** Control panel is required on all 3 phase systems.
				a.	Control Panel:
					1)	UL listed, industrial type, pre-wired, with components consisting of motor starter, terminal strip, motor overloads, control transformer with 120 or 24 volt fused secondary.
	** NOTE TO SPECIFIER ** Select power supply required and delete the ones not required. Unheated units single power supply standard, heated units separate power supply standard, single power supply optional.
					2)	Single power supply.
					3)	Separate power supply.
	** NOTE TO SPECIFIER ** Select NEMA enclosure required and delete the ones not required. Specify Type 4X enclosure in areas subject to wind driven rain or wash-down type conditions.
					4)	Enclosure: Oil-tight and dust-tight NEMA enclosure with neoprene door gasket:
						a)	Type 4
						b)	Type 12
						c)	Type 13
						d)	Type 4X
	** NOTE TO SPECIFIER ** Select mounting required and delete the ones not required.
					5)	Mounting:
						a)	Remote mounted as indicated on Drawings.
						b)	Unit mounted right end.
						c)	Unit mounted left end.
	** NOTE TO SPECIFIER ** Time delay normally set for 1 minute revise if required. Time delay relay is required for units with gas heaters and recommended at doors which have frequent opening and closing cycles.
					6)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hours delay. Set delay for 1 minute unless otherwise indicated.
	** NOTE TO SPECIFIER ** Select disconnect required and delete the ones not required. Disconnect switch simplifies power shut-off when servicing air door.
					7)	Disconnect Switch: Provide lockable, disconnect switch in control panel. Disconnect shall be:
						a)	Fused
						b)	Non-fused
	** NOTE TO SPECIFIER ** Select factory installed activation device required and delete device not required..
					8)	ON-OFF-AUTOMATIC Switch: Switch allows manual on-off operation or operation controlled by automatic door switch that activates unit when door opens and deactivates unit when door closes.
					9)	Manual Switch: Provide ON-OFF push button operation.
	** NOTE TO SPECIFIER ** Include following to lockout heat on electric or gas heated units.
					10)	Heat-On-Off.
	** NOTE TO SPECIFIER ** Single phase control station required when motor amp draw exceeds the rating of unit activation device (ie. door switch).
				b.	Single Phase Control Station:
					1)	UL listed, industrial type, pre-wired, with UL-listed components consisting of motor starter and terminal strip.
	** NOTE TO SPECIFIER ** Select NEMA enclosure required and delete the ones not required.
					2)	Enclosure: Oil-tight and dust-tight NEMA enclosure with neoprene door gasket:
						a)	Type 4
						b)	Type 12
						c)	Type 13
	** NOTE TO SPECIFIER ** Select mounting required and delete the ones not required.
					3)	Mounting:
						a)	Remote mounted as indicated on Drawings.
						b)	Unit mounted right end.
						c)	Unit mounted left end.
	** NOTE TO SPECIFIER ** Time delay normally set for 1 minute revise if required. Time delay relay is required for units with gas heaters and recommended at doors which have frequent opening and closing cycles.
					4)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hours delay. Set delay for 1 minute unless otherwise indicated.
	** NOTE TO SPECIFIER ** Include following for indirect gas fired heated units requiring single point power supply.
				c.	Dry-type distribution transformer
	** NOTE TO SPECIFIER ** Include remote activation devices required and delete those not required. Include following for indirect gas fired heated units requiring single point power supply.
				d.	Remote Activation Devices:
					1)	Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door is closes.
	** NOTE TO SPECIFIER ** On-off-automatic switch used in conjunction with automatic door switch.
					2)	ON-OFF-AUTOMATIC Switch: Switch allows manual on-off operation or operation controlled by automatic door switch that activates unit when door opens and deactivates unit when door closes.
					3)	Manual Switch: Provide ON-OFF push button operation.
	** NOTE TO SPECIFIER ** Include following to lockout heat on electric or gas heated units.
					4)	Heat-On-Off.
	** NOTE TO SPECIFIER ** Thermostat is recommended with electric and gas heaters.
				e.	Thermostat: Prevents operation of heater when inside air temperature exceeds desired temperature.
	** NOTE TO SPECIFIER ** Include following to coordinate operational sequence of air door controls.
				f.	Sequencing: ___________________________.
	** NOTE TO SPECIFIER ** Berner Model FS air doors are primarily mounted on exterior doors up to 16 feet high to prevent flying insects from entering.
		H.	Acceptable Products: Berner Model FS.
			1.	Construction: Provide factory assembled units of sufficient structural strength to be supported from ends without intermediate support. One pair of heavy duty mounting brackets shall be included. Mounting brackets shall permit adjustment of air stream discharge angel of plus or minus 20 degrees degrees.
			2.	Cabinet:
				a.	Material:
	** NOTE TO SPECIFIER ** Select one of the following cabinet materials below and delete the one not required.
					1)	Minimum 14 gauge aluminized steel with baked enamel finish, color as selected by the Architect from the manufacturers standard colors, all welded construction.
					2)	Minimum 14 gauge stainless steel, all welded construction.
	** NOTE TO SPECIFIER ** Tamper resistant fasteners are optional. Delete if not required.
				b.	Fasteners: Tamper-resistant type.
	** NOTE TO SPECIFIER ** Insert HP and power requirements on the Schedule.
			3.	Motors: 1,725 RPM, totally enclosed air over (TEAO) direct drive motors.
			4.	Fans: Fans shall be 24 inches diameter, four blade propeller type with inlet venturi.
			5.	Discharge Nozzle:
				a.	Nozzle provides uniform velocity across width of air stream
				b.	Aperture: 5.00 inches (127 mm) slot by width of air door.
			6.	Inlet:
				a.	Location: Top.
				b.	Screen: Fan guard.
	** NOTE TO SPECIFIER ** Weather hood is optional. Delete if not required.
			7.	Weather Hood: Steel. Provide one per fan.
			8.	Controls:
	** NOTE TO SPECIFIER ** Control panel is required on all 3 phase systems.
				a.	Control Panel:
					1)	UL listed, industrial type, pre-wired, with components consisting of motor starter, terminal strip, motor overloads, control transformer with 120 or 24 volt fused secondary.
	** NOTE TO SPECIFIER ** Specify Type 4X enclosure in areas subject to wind driven rain or wash-down type conditions.
				b.	Enclosure: Oil-tight and dust-tight NEMA Type 4 enclosure with neoprene door gasket.
	** NOTE TO SPECIFIER ** Select mounting required and delete the ones not required.
				c.	Mounting:
					1)	Remote mounted as indicated on Drawings.
					2)	Unit mounted.
	** NOTE TO SPECIFIER ** Select disconnect required and delete the ones not required. Disconnect switch simplifies power shut-off when servicing air door.
					3)	Disconnect Switch: Provide lockable, disconnect switch in control panel. Disconnect shall be:
						a)	Fused
						b)	Non-fused
	** NOTE TO SPECIFIER ** Select switch required and delete the ones not required.
				d.	Switching:
					1)	Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door is closes.
					2)	Combination ON-OFF-AUTOMATIC Switch: One on-off-automatic switch and one automatic door switch shall be remotely mounted in door area. On-off-automatic switch, when in ON position, shall activate unit whether door is opened or closed. In OFF position, unit shall not operate. In AUTOMATIC position, unit shall automatically activate each time door is open, and deactivate each time door is closed.
					3)	Manual Switch: Provide START-STOP push button operation.
	** NOTE TO SPECIFIER ** VSA-VSB Air Doors At exterior openings, air doors can resist winds up to 8 MPH and are generally mounted inside building to recirculate warm air which has risen towards the ceiling. They can also be used at interior openings (e.g., ovens, paint-spray rooms, clean rooms) to prevent interchange of heat, fumes, dust, and humidity. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information.
		I.	Acceptable Products:
	** NOTE TO SPECIFIER ** Select one of the following Berner Models below and delete those not required.
			1.	Berner Model VSA.
			2.	Berner Model VSB.
			3.	Construction: Provide factory assembled units of sufficient structural strength to be supported from ends without intermediate support.
			4.	Cabinet:
				a.	Material:
	** NOTE TO SPECIFIER ** Select one of the following cabinet materials below and delete the one not required.
					1)	Minimum 16 gauge aluminized steel with powder coat finish, aluminum inlet screen, all welded construction.
					2)	Minimum 16 gauge stainless steel, all welded construction.
				b.	Mounting:
	** NOTE TO SPECIFIER ** Select mounting required and delete the one not required.
					1)	Provisions for top or wall mounting.
					2)	Provisions for tandem mounting (vertical only).
				c.	Removable bottom panel for access.
	** NOTE TO SPECIFIER ** Select speed required and delete the one not required.
			5.	Motors: 1,750 RPM, double extended shafts with sealed bearings.
				a.	1 speed.
				b.	2 speed.
			6.	Fans: Balanced forward curved centrifugal type, double inlet, double width design, mounted in matched fan housings with aerodynamically formed air inlet venturies.
				a.	Construct wheels and housings constructed of galvanized steel.
			7.	Discharge Nozzle:
				a.	Provide uniform velocity across width of air door.
				b.	Aperture: 3-1/2 inches (63.5 mm) by width of air door.
				c.	Vanes: 1-1/2 inches (38 mm) minimum height; constructed of airfoil-shaped aluminum extrusions; adjustable plus or minus 20 degrees to deflect air flow.
	** NOTE TO SPECIFIER ** Use optional air volume control damper when reduction of airflow is required.
			8.	Air Volume Control Damper.
			9.	Air Intake:
	** NOTE TO SPECIFIER ** Select intake required and delete the one not required. Use top intake when noise is an issue or stratified heat. Cannot use top intake with electric, steam, hot water or indirect gas fired heat.
				a.	Location:
					1)	Front.
					2)	Top.
				b.	Screen:
	** NOTE TO SPECIFIER ** Select screen required and delete the one not required.
					1)	Perforated mill aluminum with border.
					2)	Perforated stainless steel with border.
	** NOTE TO SPECIFIER ** Filter is optional and is available with or without air intake screen. Select type required and delete those not required. Delete if not required.
			10.	Air Inlet Filter:
				a.	Flat-faced type, disposable.
				b.	Flat-Faced, re-cleanable aluminum.
				c.	Flat-Faced, re-cleanable stainless steel.
	** NOTE TO SPECIFIER ** Heating elements are optional and should be specified if "wind chill" caused by ambient air is objectionable. Edit below as required and coordinate with RELATED SECTIONS for mechanical and electrical connections.
			11.	Heating Elements:
				a.	Electric Heating Coil:
					1)	UL approved.
					2)	Factory-mounted, with factory-wired control compartment.
					3)	Automatic reset limit control, manual reset limit control, primary magnetic contactors, air flow switch, power terminal board, equipment grounding lug, power fusing, and control transformer.
				b.	Steam Coil:
					1)	Certify per ARI 410.
					2)	Construction: 5/8 inch (15.8 mm) outside diameter copper tube with aluminum fins.
					3)	Characteristics: Design to operate at maximum 150 psig (1,035 kPa) and 366 degree F (185 degrees C) steam.
					4)	Leak-test under water at 350 psig (2410 kPa) dry nitrogen.
					5)	Factory mounted on air intake, protected by expanded metal screen.
				c.	Hot Water Coil:
					1)	Certify per ARI 410.
					2)	Construction: 5/8 inch (15.8 mm) outside diameter copper tube with aluminum fins.
					3)	Characteristics: Design to operate at maximum 250 psig (1,720 kPa) and 300 degree F (149 degrees C) hot water.
					4)	Leak-test under water at 350 psig (2,410 kPa) dry nitrogen.
					5)	Factory mounted on air intake, protected by expanded metal screen.
				d.	Indirect Gas Heater and Duct Transition:
					1)	American Gas Association (AGA) or Canadian Gas Association (CGA) labeled.
	** NOTE TO SPECIFIER ** Select fuel type required and delete the one not required.
					2)	Fuel Type: Provide orifices for:
						a)	Natural gas.
						b)	LP.
	** NOTE TO SPECIFIER ** Select exchanger and burner material required and delete the one not required. Aluminized steel is standard. Specify stainless steel in corrosive environments.
					3)	Heat Exchanger and Burner:
						a)	Aluminized steel.
						b)	Stainless steel.
	** NOTE TO SPECIFIER ** Select separate or single power supply as required and delete the one not required. Separate power supply standard; single point power supply optional. Coordinate with Controls.
					4)	Characteristics:
						a)	120 volt Separate supply voltage, power exhaust vent, 120 volt limit control, 24 volt control voltage transformer, combustion air pressure switch, spark ignited intermittent safety pilot system with electronic flame supervision.
						b)	120 volt Single Point supply voltage, power exhaust vent, 120 volt limit control, 24 volt control voltage transformer, combustion air pressure switch, spark ignited intermittent safety pilot system with electronic flame supervision.
					5)	Independently support each heater at least 1 inch (25 mm) from each opening of factory-installed duct transition. Duct transition constructed of 16 gauge aluminized steel with access panels spanning entire width.
			12.	Controls:
	** NOTE TO SPECIFIER ** Control panel is required on all 3 phase systems.
				a.	Control Panel:
					1)	UL listed, industrial type, pre-wired, with components consisting of motor starter, terminal strip, motor overloads, control transformer with 120 or 24 volt fused secondary.
	** NOTE TO SPECIFIER ** Select power supply required and delete the ones not required. Unheated units single power supply standard, heated units separate power supply standard, single power supply optional.
					2)	Single power supply.
					3)	Separate power supply.
	** NOTE TO SPECIFIER ** Select NEMA enclosure required and delete the ones not required. Specify Type 4X enclosure in areas subject to wind driven rain or wash-down type conditions.
					4)	Enclosure: Oil-tight and dust-tight NEMA enclosure with neoprene door gasket:
						a)	Type 4
						b)	Type 12
						c)	Type 13
						d)	Type 4X
	** NOTE TO SPECIFIER ** Select mounting required and delete the ones not required.
					5)	Mounting:
						a)	Remote mounted as indicated on Drawings.
						b)	Unit mounted right end.
						c)	Unit mounted left end.
	** NOTE TO SPECIFIER ** Time delay normally set for 1 minute revise if required. Time delay relay is required for units with gas heaters and recommended at doors which have frequent opening and closing cycles.
					6)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hours delay. Set delay for 1 minute unless otherwise indicated.
	** NOTE TO SPECIFIER ** Select disconnect required and delete the ones not required. Disconnect switch simplifies power shut-off when servicing air door.
					7)	Disconnect Switch: Provide lockable, disconnect switch in control panel. Disconnect shall be:
						a)	Fused
						b)	Non-fused
	** NOTE TO SPECIFIER ** Select factory installed activation device required and delete device not required..
					8)	ON-OFF-AUTOMATIC Switch: Switch allows manual on-off operation or operation controlled by automatic door switch that activates unit when door opens and deactivates unit when door closes.
					9)	Manual Switch: Provide ON-OFF push button operation.
	** NOTE TO SPECIFIER ** Include following to lockout heat on electric or gas heated units.
					10)	Heat-On-Off.
	** NOTE TO SPECIFIER ** Single phase control station required when motor amp draw exceeds the rating of unit activation device (ie. door switch).
				b.	Single Phase Control Station:
					1)	UL listed, industrial type, pre-wired, with UL-listed components consisting of motor starter and terminal strip.
	** NOTE TO SPECIFIER ** Select NEMA enclosure required and delete the ones not required.
					2)	Enclosure: Oil-tight and dust-tight NEMA enclosure with neoprene door gasket:
						a)	Type 4
						b)	Type 12
						c)	Type 13
	** NOTE TO SPECIFIER ** Select mounting required and delete the ones not required.
					3)	Mounting:
						a)	Remote mounted as indicated on Drawings.
						b)	Unit mounted right end.
						c)	Unit mounted left end.
	** NOTE TO SPECIFIER ** Time delay normally set for 1 minute revise if required. Time delay relay is required for units with gas heaters and recommended at doors which have frequent opening and closing cycles.
					4)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hours delay. Set delay for 1 minute unless otherwise indicated.
	** NOTE TO SPECIFIER ** Include following for indirect gas fired heated units requiring single point power supply.
				c.	Dry-type distribution transformer
	** NOTE TO SPECIFIER ** Include remote activation devices required and delete those not required. Include following for indirect gas fired heated units requiring single point power supply.
				d.	Remote Activation Devices:
					1)	Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door is closes.
	** NOTE TO SPECIFIER ** On-off-automatic switch used in conjunction with automatic door switch.
					2)	ON-OFF-AUTOMATIC Switch: Switch allows manual on-off operation or operation controlled by automatic door switch that activates unit when door opens and deactivates unit when door closes.
					3)	Manual Switch: Provide ON-OFF push button operation.
	** NOTE TO SPECIFIER ** Include following to lockout heat on electric or gas heated units.
					4)	Heat-On-Off.
	** NOTE TO SPECIFIER ** Thermostat is recommended with electric and gas heaters.
				e.	Thermostat: Prevents operation of heater when inside air temperature exceeds desired temperature.
	** NOTE TO SPECIFIER ** Include following to coordinate operational sequence of air door controls.
				f.	Sequencing: ___________________________.
	** NOTE TO SPECIFIER ** Berner Model K-ZONE air doors are designed for openings from 2 feet to 8 feet for environmental separation and from 2 feet to 7 feet for insect control. K-ZONE is ideal for pass-thru windows and walk-in coolers. At exterior openings, air doors can resist winds up to 8 MPH and are generally mounted inside building to recirculate warm air, which has risen towards ceiling. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information. Model K-ZONE has 1/5 HP motors. K-ZONE can be wall mounted or suspended from the ceiling. Maximum recommended mounting height is 8 feet above the floor.
		J.	Acceptable Products: Berner Model K-ZONE.
			1.	Construction: Provide factory-assembled units of sufficient structural strength to be supported from ends without intermediate support.
			2.	Cabinet:
				a.	Dimensions: Not to exceed 8-1/2 inches (216 mm) height by 8 inches (203 mm) deep.
	** NOTE TO SPECIFIER ** Select one of the following cabinet materials below and delete the one not required. K-ZONE housing standard is aluminized steel, optional construction of stainless steel.
				b.	Material:
					1)	Aluminized steel riveted construction, with stainless steel rivets.
					2)	Stainless steel riveted construction, with stainless steel rivets.
	** NOTE TO SPECIFIER ** Insert HP and power requirements on the Schedule.
			3.	Motors: direct drive, 1600 rpm, resilient mounted, continuous duty, with internal thermal-overload protection and permanently lubricated sealed sleeve bearings.
			4.	Fans: Balanced forward curved cross flow, tangential type with flexible hubs, made of aluminum, mounted in matched fan scrolls constructed of material used in cabinet.
			5.	Discharge Nozzle:
				a.	Provide uniform velocity across width of air door.
				b.	Aperture: 2.375 inches (60.325 mm) slot by width of air door.
				c.	Vanes: 1-1/2 inches (38 mm) minimum high; constructed of airfoil-shaped aluminum extrusions; adjustable plus or minus 20 degrees to deflect airflow.
			6.	Inlet:
				a.	Location: Front.
				b.	Screen: Perforated pattern constructed of the same material used in housing.
			7.	Controls:
				a.	Switching:
					1)	Factory installed variable speed control switch.
				b.	Control Accessories:
	** NOTE TO SPECIFIER ** Automatic Door Switches: Switch automatically activates unit when door opens and deactivates unit when door closes. Magnetic reed switch requires load center.
					1)	Reed Switch: Magnetic with 24V load center.
					2)	Plunger Door Switch:
						a)	120V.
						b)	208/240V.
				c.	Manual disconnect switch.
					1)	Manual Switch: Provide START-STOP operation.
	** NOTE TO SPECIFIER ** Berner Models Mark II air doors are suitable for commercial and retail duty. Designed for door heights from 2 feet to 10 feet for environmental separation and from 7 feet to 8 feet for insect control. At exterior openings, air doors can resist winds up to 12 MPH and are generally mounted inside building to recirculate warm air, which has risen towards ceiling. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information. Model Mark II has 1/2 HP motors. It can be wall mounted, suspended from the ceiling or installed above the ceiling. Electric heated unit should be installed indoors only and have a minimum clearance of at least 6 feet between the bottom of the unit and the floor and at least 1 inch between the sides and top of the unit and any combustible material.
		K.	Acceptable Products: Berner Model Mark II.
			1.	Construction: Provide factory assembled units of sufficient structural strength to be supported from ends without intermediate support.
			2.	Cabinet:
				a.	Dimensions: Not to exceed 12-1/4 inches (311 mm) high by 22 inches (559 mm) deep.
				b.	Material and Finish:
	** NOTE TO SPECIFIER ** Select one of the following cabinet materials below and delete the one not required.
					1)	Clear anodized aluminum.
					2)	Bronze.
					3)	Stainless steel.
					4)	Aluminum with baked enamel finish, color as selected by the Architect from the manufacturers standard colors.
	** NOTE TO SPECIFIER ** Tamper resistant fasteners are optional. Delete if not required.
				c.	Fasteners: Tamper-resistant type.
	** NOTE TO SPECIFIER ** Insert HP and power requirements on the Schedule.
			3.	Motors: direct driven, 1600 rpm, three speed resilient mounted, continuous duty, with internal thermal-overload protection and sealed sleeve bearing permanently lubricated.
			4.	Fans: Balanced forward curved type, double inlet, mounted in matched fan scrolls with aerodynamically formed air inlet venturies.
				a.	Wheels and housings constructed of galvanized steel
			5.	Discharge Nozzle:
				a.	Provide uniform velocity across width of air door.
				b.	Aperture: 2-1/2 inches (63 mm) slot by width of air door.
				c.	Vanes: 1-1/2 inches (38 mm) minimum height; constructed of airfoil-shaped aluminum extrusions; locking air-directional vanes adjustable plus or minus 20 degrees to deflect airflow.
				d.	Recommend for all heated and unheated systems installed above a ceiling. Provided 21 inches (533 mm) high suitable for field cutting to length. Aluminum air directional vanes standard, white aluminum multi-blade air discharge grille optional.
				e.	Nozzle Extension:
	** NOTE TO SPECIFIER ** Select one of the following nossel extension materials below and delete the ones not required.
					1)	Unpainted aluminized steel with airfoil shaped anodized aluminum discharge vanes.
					2)	Unpainted aluminized steel with airfoil shaped white aluminum multi-blade air discharge grille.
					3)	Anodized aluminum with airfoil shaped anodized aluminum discharge vanes.
					4)	Anodized aluminum with airfoil shaped white aluminum multi-blade air discharge grille.
			6.	Air Intake:
				a.	Location: Front.
				b.	Screen: Perforated aluminum with extruded aluminum frame.
				c.	Filter: provide recleanable filter for each intake screen.
	** NOTE TO SPECIFIER ** Edit below as required and coordinate with RELATED SECTIONS for mechanical and electrical connections.
			7.	Heating Elements:
				a.	Electric Heating Coil:
					1)	UL approved.
					2)	Factory-mounted, factory-wired, galvanized steel frame, thermally protected.
					3)	Helical coil with point suspension of elements:
						a)	Single.
						b)	Three phase.
					4)	Thermal cutout: locks out electric heaters when prolonged abnormal over-temperature conditions exist.
	** NOTE TO SPECIFIER ** Coordinate following heating element steam with related mechanical sections of specifications. Steam coil designed to operate at maximum 75 psig (517 kPa) and 320 degree F (160 degree C) steam. Hot water coil designed to operate at a maximum of 200 degree F (93 degree C) hot water.
				b.	Steam/Hot Water Coil:
					1)	Certify per ARI 410.
					2)	Construction: 16 gauge galvanized steel casing, 5/8 inch (15.8 mm) outside diameter copper steam/hot water coil with aluminum fins and seamless copper headers.
					3)	Leak-test at Steam 325 psig (2238 kPa), Hot Water 350 psig (2415 kPa) dry nitrogen.
					4)	Factory mount on air door intake, protected by perforated metal screen.
			8.	Controls:
				a.	Switching:
					1)	Manual Switch: factory installed, three speed control switch with on/off switch.
	** NOTE TO SPECIFIER ** Automatic door switches are suitable for single phase power only and maximum amp draw of 20 amps. Consult factory for 480V options.
					2)	Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door closes.
						a)	Plunger type.
						b)	Roller arm.
					3)	Reed Switch: Magnetic, requires transformer & time delay.
	** NOTE TO SPECIFIER ** Time Delay Relay recommended for high traffic openings. Use in conjunction with unit activation switch. One time delay is recommended per air door. Consult factory for applications requiring one time delay to control multiple air doors. Operates on motor voltage or transformer. Select voltage required.
					4)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hours delay. Set delay for 2 minutes unless otherwise indicated.
						a)	24V
						b)	120V
						c)	208-240V
	** NOTE TO SPECIFIER ** Disconnect switch simplifies power shut-off when servicing air door.
					5)	Disconnect Switch:
						a)	30 Amp 1 phase.
						b)	30 Amp 3 phase.
						c)	40 Amp 3 phase.
						d)	60 Amp 3 phase.
	** NOTE TO SPECIFIER ** Mark II standard with three speed control switch and on/off switch. Optional for unheated or steam/hot water air doors with these settings: high fan / medium fan / low fan / off. Optional for electric heat with these settings; high fan / medium fan / low fan / off / high fan & heat / medium fan & heat / low fan & heat.
					6)	6. Remote Fan Speed Selector Switch:
						a)	1-1/2hp at 120V/1
						b)	3 hp at 208V/1, 240V/1
					7)	Thermostat:
						a)	Remote mount, thermostat, capacity; 22 amps at 125/277 VAC.
						b)	Factory installed, thermostat, capacity; 22 amps at 125/277 VAC.
				b.	Thermostat Override: Switch prevents operation of heater when inside air temperature exceeds desired temperature.
	** NOTE TO SPECIFIER ** Include following to coordinate operational sequence of air door controls.
				c.	Sequencing: ___________________________.
	** NOTE TO SPECIFIER ** Berner Model MAXAIR air door is designed for openings from 2 feet to 8 feet for environmental separation and from 2 feet to 7 feet for insect control. MAXAIR is ideal for pass-thru windows. At exterior openings, air doors can resist winds up to 8 MPH and are generally mounted inside building to recirculate warm air, which has risen towards ceiling. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information. Model MAXAIR has 1/5 HP motors. Both models can be wall mounted or suspended from the ceiling. Maximum recommended mounting height is 8 feet above the floor. Electric heated unit should be installed indoors only and have a minimum clearance of at least 6 feet between the bottom of the unit and the floor and at least 1 inch between the sides and top of the unit and any combustible material.
		L.	Acceptable Products:
			1.	Berner Model MAXAIR.
			2.	Construction: Provide factory-assembled units of sufficient structural strength to be supported from ends without intermediate support.
			3.	Cabinet:
	** NOTE TO SPECIFIER ** Select one of the following cabinet material below and delete the one not required. MAXAIR housing standard in clear anodized aluminum, optional finishes are stainless steel, bronze anodized aluminum or custom painted colors. MAXAIR housing depth is 13-3/4 inches.
				a.	Dimensions:
					1)	Not to exceed 7-1/2 inches (191 mm) height by 13-3/4 inches (349 mm) deep.
				b.	Finish:
	** NOTE TO SPECIFIER ** Select one of the following cabinet material below and delete the ones not required.
					1)	Clear anodized aluminum
					2)	Stainless steel
					3)	Bronze anodized aluminum
					4)	Aluminum with colored baked enamel finish color as selected by the Architect from that manufacturer standard colors.
				c.	Riveted construction, with stainless steel rivets.
	** NOTE TO SPECIFIER ** Insert HP and power requirements on the Schedule.
			4.	Motors: direct drive, 1600 rpm, resilient mounted, continuous duty, with internal thermal-overload protection and permanently lubricated sealed sleeve bearings.
			5.	Fans: Balanced forward curved cross flow, tangential type, flexible hubs mounted in matched fan scrolls. Wheels constructed of aluminum.
			6.	Discharge Nozzle:
				a.	Provide uniform velocity across width of air door.
				b.	Aperture: 2 inches (51 mm) slot by width of air door.
				c.	Vanes: 7/8 inch (22 mm) minimum high; constructed of airfoil-shaped aluminum extrusions; adjustable plus or minus 20 degrees to deflect airflow.
			7.	Air Intake:
				a.	Location: Front.
				b.	Screen: Perforated aluminum with extruded aluminum frame.
	** NOTE TO SPECIFIER ** Edit below as required and coordinate with RELATED SECTIONS for mechanical and electrical connections.
			8.	Heating Elements:
				a.	Electric Heating Coil:
					1)	UL approved.
					2)	Factory-mounted, factory-wired galvanized steel frame and thermally protected.
					3)	Helical coil with point suspension of elements, [single][three] phase.
					4)	Thermal cutout: locks out electric heaters when prolonged abnormal over-temperature conditions exist.
	** NOTE TO SPECIFIER ** Coordinate following heating element - steam/hot water - with related mechanical sections of specifications.
				b.	Steam/Hot Water Coil:
					1)	Certify per ARI 410
					2)	Construction: 16 gauge galvanized steel casing, 5/8 inches (15.8 mm) outside diameter copper steam/hot water coil with aluminum fins.
					3)	Leak-test at 325 psig (2238 kPa) dry nitrogen.
					4)	Factory mount on air door intake, protected by perforated metal screen.
	** NOTE TO SPECIFIER ** Select the controls required and delete the ones not required.
			9.	Controls:
				a.	Control Panel: UL listed, pre-wired, with solid-state variable speed control switch.
	** NOTE TO SPECIFIER ** MAXAIR, standard with Intelliswitch, digital programmable controller
				b.	Switching:
					1)	Factory installed Intelliswitch digital programmable controller: Three modes; On-Off-Auto. Time delay off 0 to 10 minutes. Internal thermostat; F or C; off- 50 degree F - 90 degree F.
					2)	Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door is closes.
					3)	Reed Switch: Magnetic.
					4)	Remote Control: controller for use with Intelliswitch digital programmable controller.
	** NOTE TO SPECIFIER ** Include following to coordinate operational sequence of air door controls.
				c.	Sequencing: ___________________________.
	** NOTE TO SPECIFIER ** Berner Models Star-STF, Star-STN, and Star-STR air doors are competitively priced for indoor or outdoor use at entry doors. Star-STF is designed for customer entries up to 6 feet wide with door heights up to 9 feet for environmental separation and up to 8 feet for insect control. Star-STF air doors can resist winds up to 10 MPH and are generally mounted inside building to recirculate warm air which has risen towards ceiling. Star-STN meets requirements of NSF Standard 37 for doors 3 feet and 3-1/2 feet wide with door heights up to 7 feet for insect control. Star-STR is designed for service doors up to 6 feet wide with door heights up to 10 feet for environmental separation and up to 9 feet for insect control. Star-STR can resist winds up to 13 MPH and can be mounted inside or outside the building. Optimum protection is provided when units are mounted on inside of building, flush to the wall and as close to top of door opening as possible. To ensure peak performance keep air stream free of obstructions. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information. Star models are standard with a 3/4 HP motor; an optional 1/2 HP motor is available. Star air doors can be wall mounted or suspended from the ceiling. Maximum recommended mounting height is 8 feet above floor. Electric heated unit should be installed indoors only and require a minimum clearance of 6 feet between the bottom of unit and floor and 4 inches between sides and top of the unit and any combustible material. A minimum of 4 inches is recommended above top for installation and removal of housing.
		M.	Acceptable Products:
	** NOTE TO SPECIFIER ** Select one of the following Berner Star Models below and delete those not required.
			1.	Berner Model Star STF.
			2.	Berner Model Star STN.
			3.	Berner Model Star STR.
			4.	Construction: Provide factory assembled units of sufficient structural strength to be supported from ends without intermediate support.
			5.	Cabinet:
				a.	Dimensions: Not to exceed 14-1/4 inches (362 mm) height by 13 inches (330 mm) deep.
				b.	Material:
	** NOTE TO SPECIFIER ** Select one of the following cabinet material below and delete the one not required.
					1)	Corrosion resistant Aluminum with polyester white on white painted finish.
					2)	Corrosion resistant Stainless Steel riveted construction, with stainless steel rivets.
				c.	Fasteners: Tamper-resistant type.
	** NOTE TO SPECIFIER ** Select the motor required and delete the one not required. 3/4 HP motor standard. Optional, 1/2 hp, 3 speed motor available. Insert power requirements on the Schedule.
			6.	Motor: Permanently lubricated and sealed bearings, double extended shafts, continuous duty, with internal thermal-overload protection.
				a.	3/4 hp, ball bearings.
				b.	1/2 hp, 3-speed, sleeve bearings.
			7.	Fans: Balanced forward curved type, double inlet, mounted in matched fan scrolls with aerodynamically formed air inlet venturies.
				a.	Wheels and housing constructed of galvanized steel.
			8.	Discharge Nozzle:
				a.	Provide uniform velocity across width of air door.
				b.	Aperture: 3-1/2 inches (9 mm) slot by width of air door.
				c.	Vanes: constructed of airfoil-shaped aluminum extrusions; air-directional vanes adjustable plus or minus 20 degrees to deflect airflow.
			9.	Air Intake:
				a.	Location: Front.
				b.	Screen: Perforated pattern constructed of the same material used in housing.
	** NOTE TO SPECIFIER ** Filter is optional. Delete if not required.
			10.	Filters:
				a.	Air intake filter re-cleanable aluminum with integral filter clips.
			11.	Heating Elements:
				a.	Electric Heating Coil:
					1)	UL approved.
					2)	Factory-mounted, in factory-wired control compartment in galvanized steel frame, thermally protected.
					3)	Helical coil with point suspension of elements, single or three phase.
					4)	Thermal cutout: locks out electric heaters when prolonged abnormal over-temperature conditions exist.
			12.	Controls:
	** NOTE TO SPECIFIER ** Standard controls are based on unit options: Unheated 3/4 hp single speed - standard: switch not included. Unheated 1/2 hp three speed - standard: built-in, on-off, high-med-low switches. Electric heated 3/4 hp single speed - standard: built-in, fan-off-fan/heat switch. Electric 1/2 hp three speed - standard: built-in, fan-off-fan/heat, high-med-low switches. Select options required and delete those not required.
				a.	Switching:
	** NOTE TO SPECIFIER ** For use with Unheated 3/4 hp single speed.
					1)	Manual Switch:
						a)	Factory installed on/off switch.
						b)	Remote mount rotary cam hand-off-auto, 1-1/2 hp at 120V/1, 3 hp at 208V/1, 240V/1, or 480V/1.
					2)	Wall On/Off Switch and Cover Plate: single phase power only, rated for commercial use max 20 amps, mounted in a wall box.
	** NOTE TO SPECIFIER ** For use with Unheated 1/2 hp three speed.
					3)	Unheated Remote Fan Speed Selector Switch: three speed capacity - 1-1/2 hp at 120V/1 and 3 hp at 208V/1, 240V/1 or 480V/1.
	** NOTE TO SPECIFIER ** For use with Electric heated 3/4 hp single speed.
					4)	Electric Heat Remote Fan Selector Switch: single speed capacity - 1-1/2 hp at 120V/1, 3 hp at 208V/1, 240V/1, or 480V/1.
	** NOTE TO SPECIFIER ** For use with Electric 1/2 hp three speed.
					5)	Electric Heat Remote Fan Speed Selector Switch: three speed capacity - 1-1/2 hp at 120V/1, 3 hp at 208V/1, 240V/1, or 480V/1.
	** NOTE TO SPECIFIER ** FOR ALL UNITS: Automatic door switches are suitable for single phase power only and maximum amp draw of 20 amps. Consult factory for 480V options.
					6)	Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door closes. plunger type or roller arm. 120V, 208V, or 240V.
					7)	Reed Switch: Magnetic, requires 24V transformer and time delay.
	** NOTE TO SPECIFIER ** FOR ELECTRIC HEATED UNITS: Thermostat prevents operation of heater when inside air temperature exceeds desired temperature.
					8)	Thermostat: Remote mount thermostat, capacity; 22 amps at 125/277 VAC.
	** NOTE TO SPECIFIER ** FOR ALL UNITS: Time Delay Relay recommended for high traffic openings. Use in conjunction with unit activation switch. One time delay is recommended per air door. Consult factory for applications requiring one time delay to control multiple air doors. Time delay normally 2 minutes revise if required.
					9)	Time Delay Relay: Adjustable in field from 0.1 second to 10 hour delay. Set delay for 2 minutes unless otherwise indicated. 120V, 208-240V, or 480V.
	** NOTE TO SPECIFIER ** Select one or both damper plate and delete the other. Damper plate reduces air velocity.
					10)	Damper plate: mounted on:
						a)	One end of fan housing.
						b)	Both ends of fan housing.
	** NOTE TO SPECIFIER ** Include following to coordinate operational sequence of air door controls.
				b.	Sequencing: ___________________________.
	** NOTE TO SPECIFIER ** Berner Model ZEPHYR is designed for openings from 2 feet to 8 feet for environmental separation and from 2 feet to 7 feet for insect control. ZEPHYR is ideal for pass-thru windows. At exterior openings, air doors can resist winds up to 8 MPH and are generally mounted inside building to recirculate warm air, which has risen towards ceiling. Air doors may not be fully effective where negative air pressure exists on one side of door; contact Berner for additional information. Models ZEPHYR has a 1/5 HP motor. Both models can be wall mounted or suspended from the ceiling. Maximum recommended mounting height is 8 feet above the floor. Electric heated units should be installed indoors only and have a minimum clearance of at least 6 feet between the bottom of the unit and the floor and at least 1 inch between the sides and top of the unit and any combustible material.
		N.	Acceptable Products:
			1.	Berner Model ZEPHYR
			2.	Construction: Provide factory assembled units of sufficient structural strength to be supported from ends without intermediate support.
	** NOTE TO SPECIFIER ** ZEPHYR housing standard in clear anodized aluminum, optional finishes are stainless steel, bronze anodized aluminum or custom painted colors. ZEPHYR housing depth is 13-3/4 inches.
			3.	Cabinet:
				a.	Dimensions: Not to exceed:
					1)	7-1/2 inches (190 mm) height by 13-3/4 inches (349 mm) deep.
				b.	Material and Finish:
	** NOTE TO SPECIFIER ** Select one of the following cabinet material below and delete the ones not required.
					1)	Clear anodized aluminum.
					2)	Bronze.
					3)	Stainless steel
					4)	Aluminum with baked enamel finish, color as selected by the Architect from the manufacturers standard colors.
				c.	Riveted construction, with stainless steel rivets.
	** NOTE TO SPECIFIER ** Insert HP and power requirements on the Schedule.
			4.	Motors: Direct driven, 1600 rpm, three speed resilient mounted, continuous duty, with internal thermal-overload protection and sealed sleeve bearing permanently lubricated.
			5.	Fans: Balanced forward curved cross flow, tangential type, flexible hubs mounted in matched fan scrolls. Wheels constructed of aluminum.
			6.	Discharge Nozzle:
				a.	Provide uniform velocity across width of air door.
				b.	Aperture: 2 inches (51 mm) slot by width of air door.
				c.	Vanes: 7/8 inches (22 mm) minimum high; constructed of airfoil-shaped aluminum extrusions; adjustable plus or minus 20 degrees to deflect airflow.
			7.	Air Intake:
				a.	Location: Front.
				b.	Screen: Perforated aluminum with extruded aluminum frame.
	** NOTE TO SPECIFIER ** Edit below as required and coordinate with RELATED SECTIONS for mechanical and electrical connections.
			8.	Heating Elements:
				a.	Electric Heating Coil:
					1)	UL approved.
					2)	Factory-mounted, factory-wired, galvanized steel frame and thermally protected.
					3)	Helical coil with point suspension of elements:
						a)	Single phase.
						b)	Three phase.
					4)	Thermal cutout: locks out electric heaters when prolonged abnormal over-temperature conditions exist.
	** NOTE TO SPECIFIER ** Coordinate following heating element - steam/hot water - with related mechanical sections of specifications.
				b.	Steam/Hot Water Coil:
					1)	Certify per ARI 410
					2)	Construction: 16 gauge galvanized steel casing, 5/8 inch (15.8 mm) outside diameter copper steam/hot water coil with aluminum fins.
					3)	Leak-test at 325 psig (2238 kPa) dry nitrogen.
					4)	Factory mount on air door intake, protected by perforated metal screen.
			9.	Controls:
	** NOTE TO SPECIFIER ** Select controls required from the following paragraphs and delete those not required.
				a.	Control Panel: UL listed, pre-wired, with solid-state variable speed control switch.
	** NOTE TO SPECIFIER ** ZEPHYR, standard with Intelliswitch, digital programmable controller
				b.	Switching:
					1)	Factory installed Intelliswitch digital programmable controller: Three modes; On-Off-Auto. Time delay off 0 to 10 minutes. Internal thermostat; F or C; off- 50 degrees F - 90 degrees F.
					2)	Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door is closes.
					3)	Reed Switch: Magnetic.
					4)	Remote Control: controller for use with Intelliswitch digital programmable controller.
	** NOTE TO SPECIFIER ** Include following to coordinate operational sequence of air door controls.
				c.	Sequencing: ___________________________.
	2.3	MOUNTING ACCESSORIES
	** NOTE TO SPECIFIER ** Select mounting accessories required and delete those not required. If necessary, show mounting requirements in project drawings.
		A.	Provide brackets and other mounting accessories as required permitting installation and functioning of air door to meet project conditions of use.
		B.	Mounting accessories
			1.	Painted, aluminized or galvanized steel.
			2.	Stainless steel.
		C.	Mount Type:
	** NOTE TO SPECIFIER ** Use the following paragraph when top mounting is required.
			1.	Top mounting brackets constructed of steel with white painted enamel finish.
	** NOTE TO SPECIFIER ** For vertical installation only.
			2.	Floor Brackets.
	** NOTE TO SPECIFIER ** Use when support is not available for top mounting holes. Extends mounting holes 12 inches on either side of unit.
			3.	Extension Brackets.
	** NOTE TO SPECIFIER ** Use when opening exceeds 12 feet and multiple units are required-not exceeding 16 Feet combined.
			4.	Tandem Brackets.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Do not begin installation until openings have been properly prepared.
		B.	Verify that required utilities are in correct location and are of correct capacities for specified products.
		C.	If preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
	3.2	INSTALLATION
		A.	Install air door/air curtain components in accordance with approved shop drawings and manufacturer's printed installation instructions.
		B.	Install air doors plumb, level, and as close as practical to top of opening and face of wall.
		C.	Install switches where indicated.
		D.	Connection to utilities as specified in Sections of Divisions 15 and 16.
	3.3	3.3 CLEANING
		A.	Clean prior to startup.
		B.	Repair or repaint damage to finishes on exposed-to-view surfaces.
	3.4	PROTECTION
		A.	Protect installed products until completion of project.
		B.	Touch-up, repair or replace damaged products before Substantial Completion.
	3.5	FIELD QUALITY CONTROL
		A.	Test and operate air door to be sure that it performs as intended.
		B.	Adjust discharge nozzles as required for each opening.
	** NOTE TO SPECIFIER ** Use an Air Door Schedule to list requirements for each size and type of air door. For your convenience, a tabular Air Door Schedule can be downloaded at www.berner.com/schedule which can be inserted into drawings or appended to the specification. Delete if not required.
	3.6	SCHEDULE
		A.	Refer to Air Door Schedule appended to this section.
	END OF SECTION