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SECTION 15831 AIR CURTAINS

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PART 1 GENERAL

1.1 SECTION INCLUDES

1.A. Air curtains.

1.2 RELATED SECTIONS

2.A. Section 04200 - Concrete Unit Masonry: Blocking or reinforcing in wall as required for attachment of air door.

2.B. Section 05400 - Cold-Formed Metal Framing: Reinforcing for attachment of air door.

2.C. Section 06100 - Rough Carpentry: Blocking in wall as required for attachment of air door.

2.D. Section 08110 - Steel Doors and Frames: Coordinate installation of switches.

2.E. Section 08400 - Entrances and Storefronts: Coordinate installation of switches.

2.F. Section 08500 - Windows.

2.G. Section 08580 - Pass Windows.

2.H. Section 08700 - Door Hardware: Coordinate with installation of hardware.

2.I. Section 09250 - Gypsum Board: Ceiling finish abutting air curtain.

2.J. Section 09510 - Acoustical Panel Ceilings: Ceiling finish abutting air curtain

2.K. Section 09900 - Painting: Field applied finishes.

15831-1 Division 15 - Plumbing: Connection of hot water supply to heater used in air curtains.

2.M. Division 15 - Heating, Ventilating, and Air-Conditioning: Connection of steam supply to heater used in air curtains.

2.N. Division 16 - Electrical: Connection of electrical service and controls.

1.3 REFERENCES

3.A. AMCA 220 - Test Methods for Air Curtain Units.

3.B. AMCA 211 - Certified Ratings Program.

3.C. ARI 410 - Forced-Circulation Air-Cooling and Air-Heating Coils.

3.D. UL 1995 - Heating and Cooling Equipment.

3.E. UL 2021 - Fixed and Location-Dedicated Electric Room Heaters

3.F. ANSI/NSF 37 - Air Curtains for Entranceways in Food Establishments.

1.4 SUBMITTALS

4.A. Submit under provisions of Section 01300.

4.B. Product Data: Manufacturer's data sheets on each product to be used, including: 4.B.1. Equipment ratings and operating characteristics. 4.B.2. Preparation instructions and recommendations. 4.B.3. Storage and handling requirements and recommendations. 4.B.4. Installation methods.

4.C. Shop Drawings: Include plans, elevations, sections, details, and attachments to other work. 4.C.1. Show configuration of non-standard units. 4.C.2. Indicate dimensions, weights, loads, clearances, location and field connections. 4.C.3. Wiring diagrams for power, signal, and control wiring.

4.D. Certificates: Indicate compliance to Regulatory Requirements and Performance Requirements.

4.E. Closeout Submittals: 4.E.1. Operation and maintenance data: Manufacturer's printed instructions for operating and maintaining air curtain components. 15831-2 4.E.2. Warranty documents: Issued and executed by manufacturer.

1.5 QUALITY ASSURANCE

5.A. Manufacturer Qualifications: 5.A.1. Products in satisfactory use in similar service for not less than 10 years. 5.A.2. Manufactured and assembled in the United States of America.

5.B. Regulatory Requirements: Product compliance with the following regulatory agencies: 5.B.1. Underwriters Laboratories listing. 5.B.2. National Electrical Code. 5.B.3. Canadian Standards Association.

5.C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

5.D. Comply with ARI 410 for components, construction, and rating. Certify coils in accordance with ARI 410.

5.E. Comply with AMCA 211, "Certified Ratings Program - Product Rating Manual for Fan Air Performance," for airflow rate, average outlet velocity, outlet velocity uniformity, velocity projection and power rating.

5.F. Certification: 5.F.1. Unheated Units: Units shall be tested in accordance with AMCA 220 and licensed to bear AMCA Certified Ratings Seal. 5.F.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

6.A. Store and handle in compliance with manufacturer's written instructions.

6.B. Maintain dry, heated storage area for products until installation.

1.7 SEQUENCING

7.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

15831-3 8.A. Manufacturer's Warranty: 8.A.1. Supply manufacturer's standard two-year limited warranty for heated units. 8.A.2. Supply manufacturer's standard five-year limited warranty.

PART 2 PRODUCTS

2.1 MANUFACTURERS

1.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 ([email protected]); Web: www.berner.com

1.B. Substitutions: Not permitted.

1.C. Requests for substitutions will be considered in accordance with provisions of Section 01600.

2.2 ARCHITECTURAL AIR CURTAINS

2.A. Berner Architectural Low Profile 8 Series air curtain: 2.A.1. Model ALC08 Ambient. 2.A.2. Model ALC08 Electric Heated. 2.A.3. Model ALC08 Hot Water Heated. 2.A.4. Model ALC08 Steam Heated. 2.A.5. Cabinet: 2.A.5.a. Dimensions: Not to exceed 7.5 in (19.1 cm) high by 13.75 in (34.9 cm) deep. 2.A.5.b. Material: Aluminum base frame with stainless steel riveted construction with cover of: 2.A.5.b.1) Corrosion resistant clear anodized aluminum. 2.A.5.b.2) Corrosion resistant aluminum with polyester powder coat finish. 2.A.5.b.3) Corrosion resistant stainless steel. 2.A.5.c. Mounting: 2.A.5.c.1) Wall mounting type. 2.A.5.c.2) Suspended mounting type. 2.A.5.d. Service Access: Removable screen and removable bottom access panel. 2.A.6. Motor: 1/5 HP, 1680 RPM, single phase, variable speed, ODP, direct drive. 2.A.7. Fans: Cross flow tangential type, aluminum with flexible hubs. 2.A.8. 15831-4 Discharge Nozzle: Provide uniform velocity across width of air curtain. Aperture is 2 inches (5 cm) slot by width of air curtain. 2.A.9. Vanes: 0.875 (2.2 cm) minimum height; airfoil-shaped aluminum extrusions. 2.A.10. Inlet: Front location with aluminum and extruded aluminum frame and same finish used for the cabinet. 2.A.11. Air Inlet Filter: Flat faced fire-rated re-cleanable aluminum with integral filter clips. 2.A.12. Heating Elements: 2.A.12.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 2.A.12.b. Steam Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 2.A.12.c. Hot Water Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 2.A.13. Controls: 2.A.13.a. Controller: UL listed, industrial type, pre-wired, with solid-state control switch. 2.A.13.a.1) Factory-mounted Intelliswitch digital programmable controller featuring: 2.A.13.a.1.a) 5 volt DC output for control circuit. 2.A.13.a.1.b) Lock and Unlock tamperproof feature. 2.A.13.a.1.c) Motor and switching suitable for 10 fan speed settings. 2.A.13.a.1.d) Programmable fan start and stop. 2.A.13.a.1.e) Programmable settings for all user controlled options. 2.A.13.a.1.f) Adjustable time delay from 0 to 10 minutes. 2.A.13.a.1.g) Five preset and three customizable programs. 2.A.13.a.1.h) Fan fail lockout. 2.A.13.a.1.i) Built-in capillary style thermostat for heated units. 2.A.13.a.1.j) Two heating modes, one for heat and one for fan and heat. 2.A.13.a.1.k) Emergency stop. 2.A.13.a.1.l) Clock with lighted display 2.A.13.a.2) Unit mounted display. 2.A.13.a.3) Remote mounted display with 20 ft (6.1m) cable. 2.A.13.a.4) Door Switch: 2.A.13.a.4.a) NEMA 1 plunger style door switch. 2.A.13.a.4.b) NEMA 4 plunger style door switch. 15831-5 2.A.13.a.4.c) NEMA 1 roller style door switch. 2.A.13.a.4.d) Magnetic style door switch. 2.A.13.a.5) Remote Control: Infrared controller for use with Intelliswitch digital programmable controller. 2.A.13.a.6) Thermostat: For remote mounted sensing to prevent the operation of heater when inside air temperature exceeds desired temperature. 2.A.13.a.7) Disconnect Switch: Provide lockable factory mounted non-fused toggle disconnects based on number of power supplies required. 2.A.13.a.8) Disconnect Switch: Provide lockable remote mounted non-fused toggle disconnects based on number of power supplies required. 2.A.13.a.9) Sequencing: ______.

2.B. Berner Architectural High Performance 10 Series air curtain: 2.B.1. Model AHC10 Ambient. 2.B.2. Model AHC10 Electric Heated. 2.B.3. Model AHC10 Hot Water Heated. 2.B.4. Model AHC10 Steam Heated. 2.B.5. Cabinet: 2.B.5.a. Dimensions: Not to exceed 12.25 inches (31.1) high by 22 inches (55.9 cm) deep. 2.B.5.b. Material: Aluminum base frame with welded construction with cover of: 2.B.5.b.1) Corrosion resistant clear anodized aluminum. 2.B.5.b.2) Corrosion resistant aluminum with polyester powder coat finish. 2.B.5.b.3) Corrosion resistant stainless steel. 2.B.5.c. Mounting: 2.B.5.c.1) Top of wall mounting type. 2.B.5.c.2) Suspended mounting type. 2.B.5.d. Service Access: Removable screen and removable bottom access panel. 2.B.6. Motor: 1/2 HP, 1680 RPM, single phase, 3 speed, ODP, direct drive. 2.B.7. Fans: Forward curved type, double inlet, with air inlet venturis. Wheels and housings of galvanized steel. 2.B.8. Discharge Nozzle: Provide uniform velocity across width of air curtain. Aperture is 2.5 inches (6.4 cm) slot by width of air curtain. 2.B.9. Vanes: 1.5 inch (3.8 cm) minimum height; constructed of airfoil-shaped aluminum extrusions; adjustable plus or minus 20 degrees to deflect airflow. 2.B.10. Nozzle Extension: 15831-6 2.B.10.a. Unpainted aluminized steel 21 inches (53.3 cm) high for field cutting to length. 2.B.10.b. Clear anodized aluminum 6 inches (15.2 cm) high fixed. 2.B.10.c. Discharge vanes, airfoil shaped 1.5 inch (3.8 cm) aluminum. 2.B.10.d. Discharge grille, multi-blade 0.875 inch (2.2 cm) white aluminum. 2.B.11. Inlet: Front location with aluminum and extruded aluminum frame with same finish used for the cabinet. 2.B.12. Air Inlet Filter: Flat faced fire-rated re-cleanable aluminum with integral filter bracket. 2.B.13. Heating Elements: 2.B.13.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 2.B.13.b. Steam Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 2.B.13.c. Hot Water Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 2.B.14. Controls: 2.B.14.a. Switching: 2.B.14.a.1) Manual Factory installed: "Fan On-Off" and "High-Med-Low" switches. 2.B.14.a.2) Manual Remote mount: 4 position rotary cam Off-High-Med-Low switch. 2.B.14.a.3) Manual Factory installed: "Fan-Off-Fan & Heat" and "High-Med-Low" switches. 2.B.14.a.4) Manual Remote mount: 7 position rotary cam "Low-Med-High-Off-Hi & Heat- Med & Heat-Low & Heat" switch. 2.B.14.b. Basic Control: Air curtain on when door is opened and off when door is closed. 2.B.14.b.1) Line Voltage Control: 2.B.14.b.1.a) NEMA 1 plunger style door switch. 2.B.14.b.1.b) NEMA 4 plunger style door switch. 2.B.14.b.1.c) NEMA 1 roller style door switch. 2.B.14.b.2) 24 Volt Control: With switch and factory-installed transformer. 2.B.14.b.2.a) NEMA 1 plunger style door switch. 2.B.14.b.2.b) NEMA 4 plunger style door switch. 2.B.14.b.2.c) NEMA 1 roller style door switch. 2.B.14.b.2.d) Magnetic reed. 2.B.14.c. Deluxe Control Package: Air curtain turns on when door is open and off when door 15831-7 is closed, unit remains on until set delay time expires. 2.B.14.c.1) Line Voltage Control: With switch and factory-installed time delay 2.B.14.c.1.a) NEMA 1 plunger style door switch. 2.B.14.c.1.b) NEMA 4 plunger style door switch. 2.B.14.c.1.c) NEMA 1 roller style door switch. 2.B.14.c.2) 24 Volt Control: With switch, factory-installed time delay and factory- installed transformer. 2.B.14.c.2.a) NEMA 1 plunger style door switch. 2.B.14.c.2.b) NEMA 4 plunger style door switch. 2.B.14.c.2.c) NEMA 1 roller style door switch. 2.B.14.c.2.d) Magnetic reed. 2.B.14.d. Comfort Plus 24 Volt Control Package: Provides supplemental heat when door is closed and allows air curtain to run at speed selected to protect the opening when door is open. Air curtain shuts off after door is closed and set delay time expires. When door is closed and temperature drops below set point air curtain runs at low speed providing supplemental heat until thermostat is satisfied. 2.B.14.d.1) 24 Volt Control: With switch, factory-installed time delay and factory- installed transformer. 2.B.14.d.1.a) NEMA 1 plunger style door switch. 2.B.14.d.1.b) NEMA 4 plunger style door switch. 2.B.14.d.1.c) NEMA 1 roller style door switch. 2.B.14.d.1.d) Magnetic reed. 2.B.14.e. Thermostat: For remote mounted sensing to prevent the operation of heater when inside air temperature exceeds desired temperature. 2.B.14.f. Disconnect Switch: Provide lockable factory mounted non-fused toggle disconnects based on number of power supplies required. 2.B.14.g. Sequencing: ______.

2.C. Berner Architectural Elite 8 (AEC08) Series air curtain: 2.C.1. Model AEC10 Ambient. 2.C.2. Model AEC10 Electric Heated. 2.C.3. Cabinet: 2.C.3.a. Dimensions: Not to exceed 11 inches (27.9 cm) high by 24 inches (61.0 cm) deep or 30 inches (76.2 cm) deep with decorative rear adapter. 2.C.3.b. Material: Corrosion resistant aluminum with polyester powder coat finish 2.C.3.b.1) Equip air curtains with a perforated grill rear adaptor. 2.C.3.b.2) 15831-8 Equip air curtains with a solid rear adaptor. 2.C.3.c. Mounting: 2.C.3.c.1) Wall mounting type. 2.C.3.c.2) Suspended mounting type. 2.C.3.d. Service Access: Removable screen and removable bottom access panel. 2.C.4. Motor: 1/2 HP, 1680 RPM, single phase, 3 speed, ODP, direct drive. 2.C.5. Fans: Curved type, double inlet, with air inlet venturis. Wheels and housings galvanized steel. 2.C.6. Discharge Nozzle: Provide uniform velocity across width of air curtain. Aperture is 2.75 inches (7 cm) slot by width of air curtain. 2.C.7. Vanes: 0.875 inch (2.2 cm) minimum height; constructed of airfoil-shaped aluminum extrusions; adjustable plus or minus 20 degrees to deflect airflow. 2.C.8. Inlet: Front location with aluminum and extruded aluminum frame with same finish used for the cabinet. 2.C.9. Heating Elements: 2.C.9.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 2.C.10. Controls: 2.C.10.a. Switching: Factory-supplied remote-installed multi-speed control switch. 2.C.10.b. Basic Control Package: Air curtain turns on when door is opened and shuts off when door is closed. 2.C.10.b.1) Line Voltage Control: 2.C.10.b.1.a) NEMA 1 plunger style door switch. 2.C.10.b.1.b) NEMA 4 plunger style door switch. 2.C.10.b.1.c) NEMA 1 roller style door switch. 2.C.10.b.2) 24 Volt Control: With switch and factory-installed transformer. 2.C.10.b.2.a) NEMA 1 plunger style door switch. 2.C.10.b.2.b) NEMA 4 plunger style door switch. 2.C.10.b.2.c) NEMA 1 roller style door switch. 2.C.10.b.2.d) Magnetic reed. 2.C.10.c. Deluxe Control Package: Air curtain turns on when door is opened and shuts off when door is closed, unit remains on until set delay time expires. 2.C.10.c.1) Line Voltage Control: With switch and factory-installed time delay 2.C.10.c.1.a) NEMA 1 plunger style door switch. 2.C.10.c.1.b) NEMA 4 plunger style door switch. 15831-9 2.C.10.c.1.c) NEMA 1 roller style door switch. 2.C.10.c.2) 24 Volt Control: With switch, factory-installed time delay and factory- installed transformer. 2.C.10.c.2.a) NEMA 1 plunger style door switch. 2.C.10.c.2.b) NEMA 4 plunger style door switch. 2.C.10.c.2.c) NEMA 1 roller style door switch. 2.C.10.c.2.d) Magnetic reed. 2.C.10.d. Comfort Plus 24 Volt Control Package: Provides supplemental heat when door is closed and allows air curtain to run at the speed selected to protect opening when door is open. Air curtain shuts off after door is closed and set delay time expires. When door is closed and temperature drops below set point air curtain runs at low speed providing supplemental heat until thermostat is satisfied. 2.C.10.d.1) 24 Volt Control: With switch, factory-installed time delay and factory- installed transformer. 2.C.10.d.1.a) NEMA 1 plunger style door switch. 2.C.10.d.1.b) NEMA 4 plunger style door switch. 2.C.10.d.1.c) NEMA 1 roller style door switch. 2.C.10.d.1.d) Magnetic reed. 2.C.10.e. Thermostat: For remote mounted sensing to prevent the operation of heater when inside air temperature exceeds desired temperature. 2.C.10.f. Disconnect Switch: Provide lockable factory mounted non-fused toggle disconnects based on number of power supplies required. 2.C.10.g. Sequencing: ______.

2.D. Berner Architectural Recessed 12 Series air curtain: 2.D.1. Model ARC12 Ambient. 2.D.2. Model ARC12 Electric Heated. 2.D.3. Model ARC12 Hot Water Heated. 2.D.4. Model ARC12 Steam Heated. 2.D.5. Cabinet: 2.D.5.a. Dimensions: Not to exceed 15.25 inches (38.7 cm) high by 26.25 inches (66.7 cm) deep. 2.D.5.b. Material: Minimum 16-gage aluminized steel cabinet, welded construction with: 2.D.5.b.1) White on white polyester painted aluminum bottom cover with 16-gage steel white powder coated screen 2.D.5.b.2) Brushed finish stainless steel bottom cover with mill aluminum screen 2.D.5.b.3) 15831-10 Powder coated aluminum bottom cover and screen color as selected. 2.D.5.c. Mounting: Suspended mounting type. 2.D.5.d. Service Access: Hinged removable screen and removable bottom access panel. 2.D.6. Motor: 1/2 HP, 1680 RPM, single phase, 3 speed, ODP, direct drive. 2.D.7. Fans: Curved type, double inlet, with air inlet venturis. Wheels and housings galvanized steel. 2.D.8. Discharge Nozzle: Provide uniform velocity across width of air curtain. Aperture is 3.5 inch (9 cm) slot by width of air curtain. 2.D.9. Vanes: 1.5 inch (3.8 cm) minimum height; airfoil-shaped aluminum extrusions. 2.D.10. Inlet: Location: Bottom location with perforated metal screen of same material finish used for the cabinet. 2.D.11. Air Inlet Filter: Flat faced fire-rated re-cleanable aluminum with integral filter clips. 2.D.12. Heating Elements: 2.D.12.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 2.D.12.b. Steam Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 2.D.12.c. Hot Water Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 2.D.13. Controls: 2.D.13.a. Controller: UL listed, industrial type, pre-wired, with solid-state control switch. 2.D.13.a.1) Factory-mounted and wired Intelliswitch digital programmable controller with the following features: 2.D.13.a.1.a) 5 volt DC output for control circuit. 2.D.13.a.1.b) Lock and Unlock tamperproof feature. 2.D.13.a.1.c) Motor and switching suitable for 10 fan speed settings. 2.D.13.a.1.d) Programmable fan start and fan stop. 2.D.13.a.1.e) Programmable settings for all user controlled options. 2.D.13.a.1.f) Adjustable time delay from 0 to 10 minutes. 2.D.13.a.1.g) Five preset and three customizable programs. 2.D.13.a.1.h) Fan fail lockout. 2.D.13.a.1.i) Built-in capillary style thermostat for heated units 2.D.13.a.1.j) Two heating modes, one or heat and one for fan and heat. 2.D.13.a.1.k) Emergency stop. 15831-11 2.D.13.a.1.l) Clock with lighted display 2.D.13.a.2) Unit mounted display. 2.D.13.a.3) Remote mounted display with 20 foot (6.1 m) cable. 2.D.13.a.4) Door Switch: 2.D.13.a.4.a) NEMA 1 plunger style door switch. 2.D.13.a.4.b) NEMA 4 plunger style door switch. 2.D.13.a.4.c) NEMA 1 roller style door switch. 2.D.13.a.4.d) Magnetic style door switch. 2.D.13.a.5) Remote Control: Infrared controller for use with Intelliswitch digital programmable controller. 2.D.13.a.6) Thermostat: For remote mounted sensing to prevent the operation of heater when inside air temperature exceeds desired temperature. 2.D.13.a.7) Disconnect Switch: Provide lockable factory mounted non-fused toggle disconnects based on number of power supplies required. 2.D.13.a.8) Disconnect Switch: Provide lockable remote mounted non-fused toggle disconnects based on number of power supplies required. 2.D.13.a.9) Sequencing: ______.

2.E. Berner Architectural Recessed 16 Series air curtain: 2.E.1. Model ARC16 Ambient. 2.E.2. Model ARC16 Electric Heated. 2.E.3. Model ARC16 Hot Water Heated. 2.E.4. Model ARC16 Steam Heated. 2.E.5. Cabinet: 2.E.5.a. Dimensions: Not to exceed 15.25 inches (38.7 cm) high by 26.25 inches (66.7 cm) deep. 2.E.5.b. Material: Minimum 16-gage aluminized steel cabinet, welded construction with: 2.E.5.b.1) White on white polyester painted aluminum bottom cover with 16-gage steel white powder coated screen 2.E.5.b.2) Brushed finish stainless steel bottom cover with mill aluminum screen 2.E.5.b.3) Powder coated aluminum bottom cover and screen color as selected. 2.E.5.c. Mounting: 2.E.5.c.1) Suspended mounting type. 2.E.5.d. Service Access: Hinged removable screen and removable bottom access panel. 2.E.6. 15831-12 Motor: 1 HP, 1680 RPM, single phase, 3 speed, ODP, direct drive. 2.E.7. Fans: Curved type, double inlet, with formed air inlet venturis. Wheels and housings galvanized steel. 2.E.8. Discharge Nozzle: Provide uniform velocity across width of air curtain. Aperture is 3.5 inch (9 cm) slot by width of air curtain. 2.E.9. Vanes: 1.5 inch (3.8 cm) minimum height; constructed of airfoil-shaped aluminum extrusions; adjustable plus or minus 20 degrees to deflect airflow. 2.E.10. Inlet: Bottom location with perforated metal screen of same material finish used for the cabinet. 2.E.11. Air Inlet Filter: Flat faced fire-rated re-cleanable aluminum with integral filter clips. 2.E.12. Heating Elements: 2.E.12.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 2.E.12.b. Steam Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 2.E.12.c. Hot Water Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 2.E.13. Controls: 2.E.13.a. Controller: UL listed, industrial type, pre-wired, with solid-state control switch. 2.E.13.a.1) Factory-mounted Intelliswitch digital programmable controller featuring: 2.E.13.a.1.a) 5 volt DC output for control circuit. 2.E.13.a.1.b) Lock and Unlock tamperproof feature. 2.E.13.a.1.c) Motor and switching suitable for 10 fan speed settings. 2.E.13.a.1.d) Programmable fan start and fan stop time. 2.E.13.a.1.e) Programmable settings for all user controlled options. 2.E.13.a.1.f) Adjustable time delay from 0 to 10 minutes. 2.E.13.a.1.g) Five preset and three customizable programs. 2.E.13.a.1.h) Fan fail lockout. 2.E.13.a.1.i) Built-in capillary style thermostat for heated units. 2.E.13.a.1.j) Two heating modes, one for heat and one for fan and heat. 2.E.13.a.1.k) Emergency stop. 2.E.13.a.1.l) Clock with lighted display 2.E.13.a.2) Unit mounted display. 2.E.13.a.3) Remote mounted display with 20 foot (6.1 m) cable. 15831-13 2.E.13.a.4) Door Switch: 2.E.13.a.4.a) NEMA 1 plunger style door switch. 2.E.13.a.4.b) NEMA 4 plunger style door switch. 2.E.13.a.4.c) NEMA 1 roller style door switch. 2.E.13.a.4.d) Magnetic style door switch. 2.E.13.a.5) Remote Control: Infrared controller for use with Intelliswitch digital programmable controller. 2.E.13.a.6) Thermostat: For remote mounted sensing to prevent the operation of heater when inside air temperature exceeds desired temperature. 2.E.13.a.7) Disconnect Switch: Provide lockable factory mounted non-fused toggle disconnects based on number of power supplies required. 2.E.13.a.8) Disconnect Switch: Provide lockable remote mounted non-fused toggle disconnects based on number of power supplies required. 2.E.13.a.9) Sequencing: ______.

2.3 COMMERCIAL AIR CURTAINS

3.A. Berner Commercial Low Profile 8 Series air curtain: 3.A.1. Model CLC08 Ambient. 3.A.2. Model CLC08 Electric Heated. 3.A.3. Model CLC08 Hot Water Heated. 3.A.4. Model CLC08 Steam Heated. 3.A.5. Cabinet: 3.A.5.a. Tamper-resistant construction; parts cannot be disassembled without special tool provided by manufacturer. 3.A.5.b. Dimensions: Not to exceed 8.5 inches (21.6 cm) high by 13.5 inches (34.3 cm) deep. 3.A.5.c. Material: Aluminum base frame with stainless steel riveted construction with cover of: 3.A.5.c.1) Aluminized steel cabinet with stainless steel riveted construction and powder coated finish with color as selected. 3.A.5.c.2) Stainless steel cabinet with stainless steel riveted construction. 3.A.5.d. Mounting: 3.A.5.d.1) Wall mounting type. 3.A.5.d.2) Suspended mounting type. 3.A.5.e. Service Access: Removable screen and removable bottom access panel. 15831-14 3.A.6. Motor: 1/5 HP, 1680 RPM, single phase, variable speed, ODP, direct drive. 3.A.7. Fans: Curved cross flow tangential type, with flexible hubs. 3.A.8. Discharge Nozzle: Provide uniform velocity across width of air curtain. Aperture is 2.375 inches (6 cm) slot by width of air curtain. 3.A.9. Vanes: 1.5 inch (6 cm) minimum height; airfoil-shaped aluminum extrusions. 3.A.10. Inlet: Location: Front location. Screen with aluminum and extruded aluminum frame of same finish used for cabinet. 3.A.11. Air Inlet Filter: Flat faced fire-rated re-cleanable aluminum with integral filter clips. 3.A.12. Heating Elements: 3.A.12.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 3.A.12.b. Steam Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 3.A.12.c. Hot Water Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 3.A.13. Controls: 3.A.13.a. Switching: 3.A.13.a.1) Manual Factory installed: "Fan On-Off" and "High-Med-Low" switches. 3.A.13.a.2) Manual Remote mount: 4 position rotary cam Off-High-Med-Low switch. 3.A.13.a.3) Manual Switch Factory installed: "Fan-Off-Fan & Heat" and "High-Med-Low" switches. 3.A.13.a.4) Manual Switch Remote mount: 7 position rotary cam "Low-Med-High-Off-Hi & Heat-Med & Heat-Low & Heat" switch. 3.A.13.b. Basic Control: Air curtain on when door is opened and off when door is closed. 3.A.13.b.1) Line Voltage Control: 3.A.13.b.1.a) NEMA 1 plunger style door switch. 3.A.13.b.1.b) NEMA 4 plunger style door switch. 3.A.13.b.1.c) NEMA 1 roller style door switch. 3.A.13.b.2) 24 Volt Control: With switch and factory-installed transformer. 3.A.13.b.2.a) NEMA 1 plunger style door switch. 3.A.13.b.2.b) NEMA 4 plunger style door switch. 3.A.13.b.2.c) NEMA 1 roller style door switch. 3.A.13.b.2.d) Magnetic reed. 3.A.13.c. 15831-15 Deluxe Control: Air curtain on when door is open and off when door is closed. 3.A.13.c.1) Line Voltage Control: With switch and factory-installed time delay 3.A.13.c.1.a) NEMA 1 plunger style door switch. 3.A.13.c.1.b) NEMA 4 plunger style door switch. 3.A.13.c.1.c) NEMA 1 roller style door switch. 3.A.13.c.2) 24 Volt Control: With switch, factory-installed time delay and factory- installed transformer. 3.A.13.c.2.a) NEMA 1 plunger style door switch. 3.A.13.c.2.b) NEMA 4 plunger style door switch. 3.A.13.c.2.c) NEMA 1 roller style door switch. 3.A.13.c.2.d) Magnetic reed. 3.A.13.d. Thermostat: For remote mounted sensing to prevent the operation of heater when inside air temperature exceeds desired temperature. 3.A.13.e. Disconnect Switch: Provide lockable factory mounted non-fused toggle disconnects based on number of power supplies required. 3.A.13.f. Sequencing: ______.

3.B. Berner Commercial Low Profile 10 Series air curtain: 3.B.1. Model CLC10 Ambient. 3.B.2. Model CLC10 Electric Heated. 3.B.3. Cabinet: 3.B.3.a. Tamper-resistant construction; parts cannot be disassembled without special tool provided by manufacturer. 3.B.3.b. Dimensions: Not to exceed 14.25 inches (36.2 cm) high by 15 inches (38.1 cm) deep. 3.B.3.c. Material: Aluminum base frame with stainless steel riveted construction with cover of: 3.B.3.c.1) Aluminized steel cabinet with stainless steel riveted construction and powder coated finish with color as selected. 3.B.3.c.2) Stainless steel cabinet with stainless steel riveted construction. 3.B.3.d. Mounting: 3.B.3.d.1) Wall mounting type. 3.B.3.d.2) Suspended mounting type. 3.B.3.e. Service Access: Removable screen and removable bottom access panel. 3.B.4. Motor: 1/2 HP, 1680 RPM, single phase, variable speed, ODP, direct drive. 3.B.5. 15831-16 Fans: Curved type, double inlet, with formed air inlet venturis. Wheels and housings galvanized steel. 3.B.6. Discharge Nozzle: Provide uniform velocity across width of air curtain. Aperture is 3.5 inch (9 cm) slot by width of air curtain. 3.B.7. Vanes: 1.5 inch (6 cm) minimum height; of airfoil-shaped aluminum extrusions. 3.B.8. Nozzle Extension: 3.B.8.a. Unpainted aluminized steel 21 inches (53.3 cm) high for field cutting to length. 3.B.8.b. Clear anodized aluminum 6 inches (15.2 cm) high fixed. 3.B.8.c. Discharge vanes, airfoil shaped 1.5 inch (3.8 cm) aluminum. 3.B.8.d. Discharge grille, multi-blade 0.875 inch (2.2 cm) white aluminum. 3.B.9. Inlet: 3.B.9.a. Location: Front location with aluminum and extruded aluminum frame screen of same finish used for cabinet. 3.B.10. Air Inlet Filter: Flat faced fire-rated re-cleanable aluminum with integral filter clips. 3.B.11. Heating Elements: 3.B.11.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 3.B.12. Controls: 3.B.12.a. Switching: 3.B.12.a.1) Manual Factory installed: "Fan On-Off" and "High-Med-Low" switches. 3.B.12.a.2) Manual Remote mount: 4 position rotary cam Off-High-Med-Low switch. 3.B.12.a.3) Manual Switch Factory installed: "Fan-Off-Fan & Heat" and "High-Med-Low" switches. 3.B.12.a.4) Manual Switch Remote mount: 7 position rotary cam "Low-Med-High-Off-Hi & Heat-Med & Heat-Low & Heat" switch. 3.B.12.b. Basic Control: Air curtain on when door is open and off when door is closed. 3.B.12.b.1) Line Voltage Control: 3.B.12.b.1.a) NEMA 1 plunger style door switch. 3.B.12.b.1.b) NEMA 4 plunger style door switch. 3.B.12.b.1.c) NEMA 1 roller style door switch. 3.B.12.b.2) 24 Volt Control: With switch and factory-installed transformer. 3.B.12.b.2.a) NEMA 1 plunger style door switch. 3.B.12.b.2.b) NEMA 4 plunger style door switch. 3.B.12.b.2.c) NEMA 1 roller style door switch. 3.B.12.b.2.d) 15831-17 Magnetic reed. 3.B.12.c. Deluxe Control Package: Air curtain on when door is open and off when door is closed, unit remains on until set delay time expires. 3.B.12.c.1) Line Voltage Control: With switch and factory-installed time delay 3.B.12.c.1.a) NEMA 1 plunger style door switch. 3.B.12.c.1.b) NEMA 4 plunger style door switch. 3.B.12.c.1.c) NEMA 1 roller style door switch. 3.B.12.c.2) 24 Volt Control: With switch, factory-installed time delay and factory- installed transformer. 3.B.12.c.2.a) NEMA 1 plunger style door switch. 3.B.12.c.2.b) NEMA 4 plunger style door switch. 3.B.12.c.2.c) NEMA 1 roller style door switch. 3.B.12.c.2.d) Magnetic reed. 3.B.12.d. Comfort Plus 24 Volt Control Package: Provides supplemental heat when door is closed and allows air curtain to run at speed selected to protect the opening when door is opened. Air curtain shuts off after door is closed and set delay time expires. When door is closed and temperature drops below set point air curtain runs at low speed with supplemental heat until thermostat is satisfied. 3.B.12.d.1) 24 Volt Control: With switch, factory-installed time delay and factory- installed transformer. 3.B.12.d.1.a) NEMA 1 plunger style door switch. 3.B.12.d.1.b) NEMA 4 plunger style door switch. 3.B.12.d.1.c) NEMA 1 roller style door switch. 3.B.12.d.1.d) Magnetic reed. 3.B.12.e. Thermostat: For remote mounted sensing to prevent the operation of heater when inside air temperature exceeds desired temperature. 3.B.12.f. Disconnect Switch: Provide lockable factory mounted non-fused toggle disconnects based on number of power supplies required. 3.B.12.g. Sequencing: ______.

3.C. Berner Commercial Drive-Thru Unit 3 Series air curtain: 3.C.1. Model DTU03 Ambient. 3.C.2. Model DTU03 Electric Heated. 3.C.3. Cabinet: 3.C.3.a. Dimensions: Not to exceed 6 inches (15.2 cm) high by 7.75 inches (19.7 cm) deep. 3.C.3.b. Material: Aluminum base frame with silver powder coated finish. 3.C.3.c. 15831-18 Mounting: 3.C.3.c.1) Wall mounting type. 3.C.3.c.2) Suspended mounting type. 3.C.3.d. Service Access: Removable screen. 3.C.4. Motor: 1/12 HP, 2950 RPM, single phase, single speed, ODP, direct drive. 3.C.5. Fans: Curved type, double inlet. Wheels and housings galvanized steel. 3.C.6. Discharge Nozzle: Provide uniform velocity across width of air curtain. Aperture is 1.125 inch (2.9 cm) slot by width of air curtain. 3.C.7. Vanes: 0.25 inch (.06 cm) minimum height; constructed of airfoil-shaped. 3.C.8. Inlet: Location: Front location with staggered perforated pattern aluminum screen. 3.C.9. Air Inlet Filter: Recleanable type of aluminum with "No Tool" filter removal. 3.C.10. Adjustment Hardware: Standard mount hardware that enables unit rotation a minimum of plus or minus 20 degrees to direct airflow for proper operation. 3.C.11. Electrical Connection: Factory-installed cord and plug standard. 3.C.12. Heating Elements: 3.C.12.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 3.C.13. Controls: 3.C.13.a. Switching: 3.C.13.a.1) Manual Factory installed: "Fan On-Off" switch rated 120 volt single phase. 3.C.13.a.2) Manual Remote mount: "Fan On-Off-Fan & Heat" switch rated 120 volt single phase.

2.4 SANITATION CERTIFIED AIR CURTAINS

4.A. Berner Sanitation Low Profile 7 Series air curtain: 4.A.1. Model SLC08 Ambient. 4.A.2. Cabinet: 4.A.2.a. Tamper-resistant construction; parts cannot be disassembled without special tool provided by manufacturer. 4.A.2.b. Dimensions: Not to exceed 8.5 inches (21.6 cm) high by 8.5 inches (21.6 cm) deep. 4.A.2.c. Material: Aluminum base frame with stainless steel riveted construction with cover of: 4.A.2.c.1) Aluminized steel cabinet with stainless steel riveted construction and powder coated finish with color as selected. 4.A.2.c.2) 15831-19 Stainless steel cabinet with stainless steel riveted construction. 4.A.2.d. Mounting: 4.A.2.d.1) Wall mounting type. 4.A.2.d.2) Suspended mounting type. 4.A.2.e. Service Access: Removable screen and removable bottom access panel. 4.A.3. Motor: 1/5 HP, 1680 RPM, single phase, single speed, TEOA, direct drive. 4.A.4. Fans: Curved cross flow tangential type, aluminum with flexible hubs. 4.A.5. Discharge Nozzle: Provide uniform velocity across width of air curtain. Aperture is 2.375 inches (6 cm) slot by width of air curtain. 4.A.6. Vanes: 1.5 inch (6 cm) minimum height; airfoil-shaped aluminum extrusions. 4.A.7. Inlet: Front location with perforated pattern screen of the same material and finish used for cabinet. 4.A.8. Air Inlet Filter: Flat faced fire-rated re-cleanable aluminum with integral filter brackets. 4.A.9. Controls: 4.A.9.a. Switching: 4.A.9.a.1) Manual Factory installed: "Fan On-Off" and "High-Med-Low" switches. 4.A.9.a.2) Remote Wall mounted Fan On-Off switch. 4.A.9.a.3) Remote mounted rotary cam HAND-OFF-AUTOMATIC Switch (Allows manual on-off operation or operation controlled by automatic door switch. 4.A.9.b. Basic Control: Air curtain on when door is open and off when door is closed. 4.A.9.b.1) Line Voltage Control: 4.A.9.b.1.a) NEMA 1 plunger style door switch. 4.A.9.b.1.b) NEMA 4 plunger style door switch. 4.A.9.b.1.c) NEMA 1 roller style door switch. 4.A.9.b.2) 24 Volt Control: With switch and factory-installed transformer. 4.A.9.b.2.a) NEMA 1 plunger style door switch. 4.A.9.b.2.b) NEMA 4 plunger style door switch. 4.A.9.b.2.c) NEMA 1 roller style door switch. 4.A.9.b.2.d) Magnetic reed. 4.A.9.b.3) 120 Volt Control: NEMA 4 Magnetic Reed door switch. 4.A.9.c. Deluxe Control: Air curtain on when door is open and off when door is closed, unit remains on until set delay time expires. 4.A.9.c.1) Line Voltage Control: With switch and factory-installed time delay 4.A.9.c.1.a) 15831-20 NEMA 1 plunger style door switch. 4.A.9.c.1.b) NEMA 4 plunger style door switch. 4.A.9.c.1.c) NEMA 1 roller style door switch. 4.A.9.c.2) 24 Volt Control: With switch, factory-installed time delay and factory- installed transformer. 4.A.9.c.2.a) NEMA 1 plunger style door switch. 4.A.9.c.2.b) NEMA 4 plunger style door switch. 4.A.9.c.2.c) NEMA 1 roller style door switch. 4.A.9.c.2.d) Magnetic reed. 4.A.9.d. Disconnect Switch: Provide lockable factory mounted non-fused toggle disconnects based on number of power supplies required. 4.A.9.e. Sequencing: ______.

4.B. Berner Sanitation High Performance 7 Series air curtain: 4.B.1. Model SHC07 Ambient. 4.B.2. Cabinet: 4.B.2.a. Tamper-resistant construction; parts cannot be disassembled without special tool provided by manufacturer. 4.B.2.b. Dimensions: Not to exceed 14.25 inches (36.2 cm) high by 15 inches (38.1 cm) deep. 4.B.2.c. Material: Aluminum base frame with stainless steel riveted construction with cover of: 4.B.2.c.1) Aluminized steel cabinet with stainless steel riveted construction and powder coated finish with color as selected. 4.B.2.c.2) Stainless steel cabinet with stainless steel riveted construction. 4.B.2.d. Mounting: 4.B.2.d.1) Wall mounting type. 4.B.2.d.2) Suspended mounting type. 4.B.2.e. Service Access: Removable screen and removable bottom access panel. 4.B.3. Motor: 3/4 HP, 1725 RPM, single phase, single speed, TEOA, direct drive. 4.B.4. Fans: Curved type, double inlet, with ormed air inlet venturis. Wheels and housings galvanized steel. 4.B.5. Discharge Nozzle: Provide uniform velocity across width of air curtain. Aperture is 3.5 inches (9 cm) slot by width of air curtain. 4.B.6. Vanes: 1.5 inch (6 cm) minimum height; of airfoil-shaped aluminum extrusions. 4.B.7. Inlet: Location: Front location with perforated pattern screen of same material and finish 15831-21 used for cabinet. 4.B.8. Air Inlet Filter: Flat faced fire-rated re-cleanable aluminum with integral filter brackets. 4.B.9. Controls: 4.B.9.a. Switching: 4.B.9.a.1) Manual Factory installed: "Fan On-Off" and "High-Med-Low" switches. 4.B.9.a.2) Remote Wall mounted Fan On-Off switch. 4.B.9.a.3) Remote mounted rotary cam HAND-OFF-AUTOMATIC Switch (Switch allows manual on-off operation or operation controlled by automatic door switch that activates when door opens and deactivates when closes. 4.B.9.b. Basic Control: Air curtain on when door is open and off when door is closed. 4.B.9.b.1) Line Voltage Control: 4.B.9.b.1.a) NEMA 1 plunger style door switch. 4.B.9.b.1.b) NEMA 4 plunger style door switch. 4.B.9.b.1.c) NEMA 1 roller style door switch. 4.B.9.b.2) 24 Volt Control: With switch and factory-installed transformer. 4.B.9.b.2.a) NEMA 1 plunger style door switch. 4.B.9.b.2.b) NEMA 4 plunger style door switch. 4.B.9.b.2.c) NEMA 1 roller style door switch. 4.B.9.b.2.d) Magnetic reed. 4.B.9.b.3) 120 Volt Control: NEMA 4 Magnetic Reed door switch. 4.B.9.c. Deluxe Control: Air curtain on when door is opened and off when door is closed, unit remains on until set delay time expires. 4.B.9.c.1) Line Voltage Control: With switch and factory-installed time delay 4.B.9.c.1.a) NEMA 1 plunger style door switch. 4.B.9.c.1.b) NEMA 4 plunger style door switch. 4.B.9.c.1.c) NEMA 1 roller style door switch. 4.B.9.c.2) 24 Volt Control: With switch, factory-installed time delay and factory- installed transformer. 4.B.9.c.2.a) NEMA 1 plunger style door switch. 4.B.9.c.2.b) NEMA 4 plunger style door switch. 4.B.9.c.2.c) NEMA 1 roller style door switch. 4.B.9.c.2.d) Magnetic reed. 4.B.9.d. Disconnect Switch: Provide lockable factory mounted non-fused toggle disconnects based on number of power supplies required. 15831-22 4.B.9.e. Sequencing: ______.

2.5 INDUSTRIAL AIR CURTAINS

5.A. Berner Industrial Direct Drive 12 Series air curtain: 5.A.1. Model IDC12 Ambient. 5.A.2. Model IDC12 Electric Heated. 5.A.3. Model IDC12 Hot Water Heated. 5.A.4. Model IDC12 Steam Heated. 5.A.5. Model IDC12 Positive Indirect Gas Heated. 5.A.6. Cabinet: 5.A.6.a. Tamper-resistant construction; parts cannot be disassembled without special tool provided by manufacturer. 5.A.6.b. Dimensions: Cabinet, not including external heating options, not to exceed 15 inches (38.1 cm) high by 18 inches (45.7 cm) deep. 5.A.6.c. Material: 5.A.6.c.1) Minimum 16-gage aluminized steel with powder coated finish base frame with mill aluminum inlet screen and access panels welded construction. Color as selected. 5.A.6.c.2) Minimum 16-gage stainless steel base frame, access panels and screen, welded construction. 5.A.6.d. Mounting: 5.A.6.d.1) Wall mounting type. 5.A.6.d.2) Suspended mounting type. 5.A.6.d.3) Vertical mounting type. 5.A.6.d.4) Vertical tandem mounting type. 5.A.6.e. Service Access: Removable screen and removable top and bottom access panels. 5.A.7. Motor: 1/5 HP, 1680 RPM, 1 or 3 speed, ODP, direct drive. 5.A.8. Motor: 1/5 HP, 1680 RPM, 1-speed, TEAO, direct drive. 5.A.9. Fans: Curved centrifugal type, double inlet, with air inlet venturis. Wheels and housings galvanized steel. 5.A.10. Discharge Nozzle: Provide uniform velocity across width of air curtain. Aperture is 3.5 inches (9 cm) slot by width of air curtain. 5.A.11. Vanes: 1.5 inch (3.8 cm) minimum height; of aluminum extrusions. 5.A.12. Nozzle Extension: 5.A.12.a. 15831-23 Unpainted aluminized steel 1.5 inch (3.8 cm) aluminum discharge vanes. 5.A.12.b. Clear anodized aluminum 1.5 inch (3.8 cm) aluminum discharge vanes. 5.A.12.c. Discharge grille, multi-blade 0.875 inch (2.2 cm) white aluminum. 5.A.13. Inlet: 5.A.13.a. Location: 5.A.13.a.1) Front. 5.A.13.a.2) Top. 5.A.13.b. Screen: 5.A.13.b.1) Perforated pattern mill aluminum with border. 5.A.13.b.2) Perforated pattern stainless steel with border. 5.A.14. Air Inlet Filter: 5.A.14.a. Flat-faced re-cleanable aluminum with screen. 5.A.14.b. Flat-faced re-cleanable aluminum without screen. 5.A.14.c. Flat-faced re-cleanable polyester with screen. 5.A.14.d. Flat-faced re-cleanable polyester without screen. 5.A.15. Heating Elements: 5.A.15.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 5.A.15.b. Steam Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 5.A.15.c. Hot Water Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 5.A.15.d. Indirect Gas Heater and Duct Transition: 5.A.15.d.1) CSA listed. 5.A.15.d.2) Fuel Type: Provide orifices for natural gas. 5.A.15.d.3) Fuel Type: Provide orifices for LP gas. 5.A.15.d.4) Heat Exchanger and Burner: Aluminum 5.A.15.d.5) Heat Exchanger and Burner: Stainless steel. 5.A.16. Controls: 5.A.16.a. Control Panel: UL listed, industrial type, pre-wired, with components consisting of motor starter, terminal strip, and control transformer. 5.A.16.a.1) 120V Fused secondary. 5.A.16.a.2) 15831-24 24 Volt fused secondary. 5.A.16.b. Multiple power supply. 5.A.16.c. Single power supply. 5.A.16.d. Disconnect Switch: 5.A.16.d.1) Provide lockable remote mounted non-fused toggle disconnects based on number of power supplies required. 5.A.16.d.2) Provide lockable panel mounted through the door rotary fused disconnect. 5.A.16.d.3) Provide lockable panel mounted through the door rotary non-fused disconnect. 5.A.16.d.4) Provide lockable panel mounted through the door rotary fused disconnect. 5.A.16.d.5) Provide lockable panel mounted through the door rotary non-fused disconnect. 5.A.16.e. Time Delay Relay: Adjustable from 0.1 second to 10 hour delay. 5.A.16.f. Switching: 5.A.16.f.1) HAND-OFF-AUTOMATIC Switch: Panel mounted 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. 5.A.16.f.2) START-STOP Switch: Panel mounted switch for manual start-stop push button operation. 5.A.16.f.3) ON-OFF Switch: Panel mounted switch for manual on-off operation. 5.A.16.f.4) HEAT ON-OFF/SUMMER-WINTER Switch: Panel mounted switch to manually lock out heat operation. 5.A.17. Remote mounted Dry-type distribution transformer. 5.A.18. Unit mounted Dry-type distribution transformer. 5.A.19. Remote Activation Devices: 5.A.19.a. Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door closes. 5.A.19.b. HAND-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. 5.A.19.c. START-STOP Switch: Provides manual start-stop push button operation. 5.A.19.d. ON-OFF Switch: Provides manual on-off operation. 5.A.19.e. HEAT ON-OFF / SUMMER-WINTER]Switch: Provides manual lock out for heat operation. 5.A.20. Electric Control Packages: 5.A.20.a. Basic 24V Control: Air curtain on when door is open and off when door is closed. 5.A.20.a.1) 24 Volt Control: With switch and factory-installed time delay. 15831-25 5.A.20.a.1.a) NEMA 1 plunger style door switch. 5.A.20.a.1.b) NEMA 4 plunger style door switch. 5.A.20.a.1.c) NEMA 1 roller style door switch. 5.A.20.a.1.d) Magnetic reed. 5.A.20.b. Deluxe 24V Control: Air curtain on when door is open and off when door is closed, unit remains on until set delay time expires. 5.A.20.b.1) 24 Volt Control: With switch and factory-installed time delay. 5.A.20.b.1.a) NEMA 1 plunger style door switch and factory-installed time delay. 5.A.20.b.1.b) NEMA 4 plunger style door switch and factory-installed time delay. 5.A.20.b.1.c) NEMA 1 roller style door switch and factory-installed time delay. 5.A.20.b.1.d) Magnetic reed and factory-installed time delay. 5.A.20.c. Comfort Plus 24 Volt Control Package: Provides supplemental heat when door is closed and allows air curtain to run at the speed selected when door is opened. Air curtain shuts off after door is closed and set delay time expires. When door is closed and temperature drops below set point, air curtain runs at low speed providing supplemental heat until thermostat is satisfied. 5.A.20.c.1) Provide package complete with door switch, factory-installed transformer, time delay and thermostat. 5.A.20.c.1.a) NEMA 1 plunger style door switch. 5.A.20.c.1.b) NEMA 4 plunger style door switch. 5.A.20.c.1.c) NEMA 1 roller style door switch. 5.A.20.d. Thermostat: Prevents operation of heater when inside air temperature exceeds desired temperature. 5.A.20.e. Sequencing: ______.

5.B. Berner Industrial Direct Drive 14 Series air curtain: 5.B.1. Model IDC14 Ambient. 5.B.2. Model IDC14 Electric Heated. 5.B.3. Model IDC14 Hot Water Heated. 5.B.4. Model IDC14 Steam Heated. 5.B.5. Model IDC14 Positive Indirect Gas Heated. 5.B.6. Cabinet: 5.B.6.a. Tamper-resistant construction; parts cannot be disassembled without special tool provided by manufacturer. 5.B.6.b. Dimensions: Cabinet, not including external heating options, not to exceed 15 inches (38.1 cm) high by 18 inches (45.7 cm) deep. 15831-26 5.B.6.c. Material: 5.B.6.c.1) Minimum 16-gage aluminized steel with powder coated finish base frame with mill aluminum inlet screen and access panels welded construction. Color as selected. 5.B.6.c.2) Minimum 16-gage stainless steel base frame, access panels and screen, welded construction. 5.B.6.d. Mounting: 5.B.6.d.1) Wall mounting type. 5.B.6.d.2) Suspended mounting type. 5.B.6.d.3) Vertical mounting type. 5.B.6.d.4) Vertical tandem mounting type. 5.B.6.e. Service Access: Removable screen and top and bottom access panels. 5.B.7. Motor: 1 HP, 1680 RPM, 1 or 3 speed, ODP, direct drive. 5.B.8. Motor: 1 HP, 1680 RPM, 1 or 2 speed, TEAO, direct drive. 5.B.9. Fans: Curved centrifugal type, double inlet, with formed air inlet venturis. Wheels and housings galvanized steel. 5.B.10. Discharge Nozzle: Provide uniform velocity across width of air curtain. Aperture is 3.5 inches (9 cm) slot by width of air curtain. 5.B.11. Vanes: 1.5 inch (3.8 cm) minimum height; of airfoil-shaped aluminum extrusions. 5.B.12. Nozzle Extension: 5.B.12.a. Unpainted aluminized steel 1.5 inch (3.8 cm) aluminum discharge vanes. 5.B.12.b. Clear anodized aluminum 1.5 inch (3.8 cm) aluminum discharge vanes. 5.B.12.c. Discharge grille, multi-blade 0.875 inch (2.2 cm) white aluminum. 5.B.13. Inlet: 5.B.13.a. Location: 5.B.13.a.1) Front. 5.B.13.a.2) Top. 5.B.13.b. Screen: 5.B.13.b.1) Perforated pattern mill aluminum with border. 5.B.13.b.2) Perforated pattern stainless steel with border. 5.B.14. Air Inlet Filter: 5.B.14.a. Flat-faced re-cleanable aluminum with screen. 5.B.14.b. Flat-faced re-cleanable aluminum without screen. 5.B.14.c. 15831-27 Flat-faced re-cleanable polyester with screen. 5.B.14.d. Flat-faced re-cleanable polyester without screen. 5.B.15. Heating Elements: 5.B.15.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 5.B.15.b. Steam Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 5.B.15.c. Hot Water Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 5.B.15.d. Indirect Gas Heater and Duct Transition: 5.B.15.d.1) CSA listed. 5.B.15.d.2) Fuel Type: Provide orifices for natural gas. 5.B.15.d.3) Fuel Type: Provide orifices for LP gas. 5.B.15.d.4) Heat Exchanger and Burner: Aluminum 5.B.15.d.5) Heat Exchanger and Burner: Stainless steel. 5.B.16. Controls: 5.B.16.a. Control Panel: UL listed, industrial type, pre-wired, with components consisting of motor starter, terminal strip, and control transformer. 5.B.16.a.1) 120V Fused secondary. 5.B.16.a.2) 24 Volt fused secondary. 5.B.16.b. Multiple power supply. 5.B.16.c. Single power supply. 5.B.16.d. Enclosure: Oil-tight and dust-tight NEMA Type 4/12 enclosure with neoprene door gasket. 5.B.16.e. Enclosure: Oil-tight and dust-tight corrosion resistant NEMA 4X enclosure with neoprene door gasket. 5.B.16.f. Mounting: Remote mounted as indicated on Drawings. 5.B.16.g. Mounting: Unit mounted right end. 5.B.16.h. Mounting: Unit mounted left end. 5.B.16.i. Disconnect Switch: 5.B.16.i.1) Provide lockable remote mounted non-fused toggle disconnects based on number of power supplies required. 5.B.16.i.2) Provide lockable panel mounted through the door rotary fused disconnect. 5.B.16.i.3) Provide lockable panel mounted through the door rotary non-fused 15831-28 disconnect. 5.B.16.i.4) Provide lockable panel mounted through the door rotary fused disconnect. 5.B.16.i.5) Provide lockable panel mounted through the door rotary non-fused disconnect. 5.B.16.j. Time Delay Relay: Adjustable from 0.1 second to 10 hour delay. 5.B.16.k. Switching: 5.B.16.k.1) HAND-OFF-AUTOMATIC Switch: Panel mounted 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. 5.B.16.k.2) START-STOP Switch: Panel mounted switch for manual start-stop push button operation. 5.B.16.k.3) ON-OFF Switch: Panel mounted switch for manual on-off operation. 5.B.16.k.4) HEAT ON-OFF/SUMMER-WINTER Switch: Panel mounted switch to manually lock out heat operation. 5.B.17. Remote mounted Dry-type distribution transformer. 5.B.18. Unit mounted Dry-type distribution transformer. 5.B.19. Remote Activation Devices: 5.B.19.a. Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door closes. 5.B.19.b. HAND-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. 5.B.19.c. START-STOP Switch: Provides manual start-stop push button operation. 5.B.19.d. ON-OFF Switch: Provides manual on-off operation. 5.B.19.e. HEAT ON-OFF / SUMMER-WINTER]Switch: Provides manual lock out for heat operation. 5.B.20. Electric Control Packages: 5.B.20.a. Basic 24V Control: Air curtain on when door is open and off when closed. 5.B.20.a.1) 24 Volt Control: With switch and factory-installed time delay. 5.B.20.a.1.a) NEMA 1 plunger style door switch. 5.B.20.a.1.b) NEMA 4 plunger style door switch. 5.B.20.a.1.c) NEMA 1 roller style door switch. 5.B.20.a.1.d) Magnetic reed. 5.B.20.b. Deluxe 24V Control: Air curtain on when door is open and off when closed, unit remains on until set delay time expires. 5.B.20.b.1) 24 Volt Control: With switch and factory-installed time delay. 5.B.20.b.1.a) 15831-29 NEMA 1 plunger style door switch and factory-installed time delay. 5.B.20.b.1.b) NEMA 4 plunger style door switch and factory-installed time delay. 5.B.20.b.1.c) NEMA 1 roller style door switch and factory-installed time delay. 5.B.20.b.1.d) Magnetic reed and factory-installed time delay. 5.B.20.c. Comfort Plus 24 Volt Control Package: Provides supplemental heat when door is closed and allows air curtain to run at the speed selected when door is opened. Air curtain shuts off after door is closed and set delay time expires. When door is closed and temperature drops below set point, air curtain runs at low speed providing supplemental heat until thermostat is satisfied. 5.B.20.c.1) Provide package complete with door switch, factory-installed transformer, time delay and thermostat. 5.B.20.c.1.a) NEMA 1 plunger style door switch. 5.B.20.c.1.b) NEMA 4 plunger style door switch. 5.B.20.c.1.c) NEMA 1 roller style door switch. 5.B.20.d. Thermostat: Prevents operation of heater when inside air temperature exceeds desired temperature. 5.B.20.e. Sequencing: ______.

5.C. Berner Industrial Direct Drive 16 Series air curtain: 5.C.1. Model IDC16 Ambient, Direct Drive. 5.C.2. Model IDC16 Electric Heated, Direct Drive. 5.C.3. Model IDC16 Hot Water Heated, Direct Drive. 5.C.4. Model IDC16 Steam Heated, Direct Drive. 5.C.5. Model IDC16 Positive Indirect Gas Heated, Direct Drive. 5.C.6. Model IBC16 Ambient, Belt Drive. 5.C.7. Model IBC16 Electric Heated, Belt Drive. 5.C.8. Model IBC16 Hot Water Heated, Belt Drive. 5.C.9. Model IBC16 Steam Heated, Belt Drive. 5.C.10. Model IBC16 Positive Indirect Gas Heated, Belt Drive. 5.C.11. Cabinet: 5.C.11.a. Tamper-resistant construction; parts cannot be disassembled without special tool provided by manufacturer. 5.C.11.b. Dimensions: Cabinet, not including external heating options, not to exceed 21 inches (53.3 cm) high by 32.25 inches (81.9 cm) deep. 5.C.11.c. Material: 5.C.11.c.1) Minimum 14-gage aluminized steel with powder coated finish, welded 15831-30 construction. Color as selected. 5.C.11.c.2) Minimum 14-gage stainless steel, welded construction. 5.C.11.d. Mounting: 5.C.11.d.1) Wall mounting type. 5.C.11.d.2) Suspended mounting type. 5.C.11.d.3) Vertical mounting type. 5.C.11.d.4) Vertical tandem mounting type. 5.C.11.e. Service Access: Removable lower blower section with top or front access panels constructed from same material as cabinet. 5.C.12. Motors: Number and horsepower of motors shall be as scheduled 5.C.12.a. Direct Drive: 1160 RPM, three phase, 1-speed, totally enclosed air over (TEAO). 5.C.12.b. Belt Drive: 1750 RPM, three phase, 1-speed, totally enclosed fan cooled (TEFC). 5.C.13. Fans: Curved centrifugal type, double inlet, double width design with welded hubs, with aerodynamically formed air inlet venturis. Wheels and housings galvanized steel. 5.C.13.a. Drive blower wheels with flexible couplings. 5.C.14. Discharge Nozzle: Includes air volume control damper of same material as cabinet. 5.C.14.a. Provide uniform velocity across width of air curtain. 5.C.14.b. Mount on continuous piano hinge to allow deflection of air stream +/- 20 degrees without loss of discharge velocity or opening area. 5.C.14.c. Aperture: 4.5 inches (11.4 cm) slot by width of air curtain. 5.C.14.d. Vanes: 3.5 inch (8.9 cm) minimum height; constructed of airfoil-shaped aluminum extrusions. 5.C.15. Inlet: 5.C.15.a. Location: 5.C.15.a.1) Front. 5.C.15.a.2) Top. 5.C.15.b. Screen: Expanded metal with welded frame of same material used in cabinet. 5.C.16. Air Inlet Filter: 5.C.16.a. Flat-faced type, re-cleanable aluminum filters and hinged inlet screen. 5.C.16.b. V-Bank type, disposable filters and hinged inlet screen. 5.C.16.c. V-Bank type, re-cleanable polyester filters and hinged inlet screen. 5.C.17. Heating Elements: 5.C.17.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 15831-31 5.C.17.b. Steam Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins. 5.C.17.c. Hot Water Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 5.C.17.d. Indirect Gas Heater and Duct Transition: 5.C.17.d.1) CSA listed. 5.C.17.d.2) Fuel Type: Provide orifices for natural gas. 5.C.17.d.3) Fuel Type: Provide orifices for LP gas. 5.C.17.d.4) Heat Exchanger and Burner: Aluminum 5.C.17.d.5) Heat Exchanger and Burner: Stainless steel. 5.C.17.e. Direct Gas Fired Heater: 5.C.17.e.1) Fuel Type: Provide orifices for natural gas. 5.C.17.e.2) Gas Manifold (Train): As required by ANSI and FM and industrial risk insurance IRI. 5.C.17.e.3) Spark ignited intermittent pilot. 5.C.18. Controls: 5.C.18.a. Control Panel: UL listed, industrial type, pre-wired, with components consisting of motor starter, terminal strip, and control transformer. 5.C.18.a.1) 120V Fused secondary. 5.C.18.a.2) 24 Volt fused secondary. 5.C.18.b. Multiple power supply. 5.C.18.c. Single power supply. 5.C.18.d. Enclosure: Oil-tight and dust-tight NEMA Type 4/12 enclosure with neoprene door gasket. 5.C.18.e. Enclosure: Oil-tight and dust-tight corrosion resistant NEMA 4X enclosure with neoprene door gasket. 5.C.18.f. Mounting: Remote mounted as indicated on Drawings. 5.C.18.g. Mounting: Unit mounted right end. 5.C.18.h. Mounting: Unit mounted left end. 5.C.18.i. Disconnect Switch: 5.C.18.i.1) Provide fused disconnect. 5.C.18.i.2) Provide non-fused disconnect. 5.C.18.j. Time Delay Relay: Adjustable from 0.1 second to 10 hour delay. 5.C.18.k. 15831-32 Switching: 5.C.18.k.1) HAND-OFF-AUTOMATIC Switch: Panel mounted 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. 5.C.18.k.2) START-STOP Switch: Panel mounted switch for manual start-stop push button operation. 5.C.18.k.3) ON-OFF Switch: Panel mounted switch for manual on-off operation. 5.C.18.k.4) HEAT ON-OFF/SUMMER-WINTER Switch: Panel mounted switch to manually lock out heat operation. 5.C.19. Remote mounted Dry-type distribution transformer. 5.C.20. Unit mounted Dry-type distribution transformer. 5.C.21. Remote Activation Devices: 5.C.21.a. Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door closes. 5.C.21.b. HAND-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. 5.C.21.c. START-STOP Switch: Provides manual start-stop push button operation. 5.C.21.d. ON-OFF Switch: Provides manual on-off operation. 5.C.21.e. HEAT ON-OFF / SUMMER-WINTER Switch: Provides manual lock out for heat operation. 5.C.21.f. Thermostat: Prevents operation of heater when inside air temperature exceeds desired temperature. 5.C.21.g. Sequencing: ______.

5.D. Berner Industrial Direct Drive 20 Series air curtain: 5.D.1. Model IBC20 Ambient, Belt Drive. 5.D.2. Model IBC20 Electric Heated, Belt Drive. 5.D.3. Model IBC20 Hot Water Heated, Belt Drive. 5.D.4. Model IBC20 Steam Heated, Belt Drive. 5.D.5. Model IBC20 Positive Indirect Gas Heated, Belt Drive. 5.D.6. Cabinet: 5.D.6.a. Tamper-resistant construction; parts cannot be disassembled without special tool provided by manufacturer. 5.D.6.b. Dimensions: Air curtain cabinet (not including external heating options) not to exceed 21 inches (53.3 cm) high by 32.25 inches (81.9 cm) deep. 5.D.6.c. Material: 5.D.6.c.1) 15831-33 Minimum 14-gage aluminized steel with powder coated finish, welded construction. Color as selected. 5.D.6.c.2) Minimum 14-gage stainless steel, welded construction. 5.D.6.d. Mounting: 5.D.6.d.1) Wall mounting type. 5.D.6.d.2) Suspended mounting type. 5.D.6.d.3) Vertical mounting type. 5.D.6.d.4) Vertical tandem mounting type. 5.D.6.e. Service Access: Removable lower blower section with top or front access panels constructed from same material as cabinet. 5.D.7. Motors: Number and horsepower of motors shall be as scheduled 5.D.7.a. Belt Drive: 1750 RPM, three phase, 1-speed, totally enclosed fan cooled (TEFC). 5.D.8. Fans: Curved centrifugal type, double inlet, double width design with welded hubs, with aerodynamically formed air inlet venturis. Wheels and housings galvanized steel. 5.D.8.a. Drive blower wheels with flexible couplings. 5.D.9. Discharge Nozzle: Includes air volume control damper of same material as cabinet. 5.D.9.a. Provide uniform velocity across width of air curtain. 5.D.9.b. Mount on continuous piano hinge to allow deflection of air stream +/- 20 degrees without loss of discharge velocity or opening area. 5.D.9.c. Aperture: 4.5 inches (11.4 cm) slot by width of air curtain. 5.D.9.d. Vanes: 3.5 inch (8.9 cm) minimum height; constructed of airfoil-shaped aluminum extrusions. 5.D.10. Inlet: 5.D.10.a. Location: 5.D.10.a.1) Front. 5.D.10.a.2) Top. 5.D.10.b. Screen: Expanded metal with welded frame of same material used in cabinet. 5.D.11. Air Inlet Filter: 5.D.11.a. Flat-faced type, re-cleanable aluminum filters and hinged inlet screen. 5.D.11.b. V-Bank type, disposable filters and hinged inlet screen. 5.D.11.c. V-Bank type, re-cleanable polyester filters and hinged inlet screen. 5.D.12. Heating Elements: 5.D.12.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 5.D.12.b. 15831-34 Steam Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins. 5.D.12.c. Hot Water Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 5.D.12.d. Indirect Gas Heater and Duct Transition: 5.D.12.d.1) CSA listed. 5.D.12.d.2) Fuel Type: Provide orifices for natural gas. 5.D.12.d.3) Fuel Type: Provide orifices for LP gas. 5.D.12.d.4) Heat Exchanger and Burner: Aluminum 5.D.12.d.5) Heat Exchanger and Burner: Stainless steel. 5.D.12.e. Direct Gas Fired Heater: 5.D.12.e.1) Fuel Type: Provide orifices for natural gas. 5.D.12.e.2) Gas Manifold (Train): As required by ANSI and FM and industrial risk insurance IRI. 5.D.12.e.3) Spark ignited intermittent pilot. 5.D.13. Controls: 5.D.13.a. Control Panel: UL listed, industrial type, pre-wired, with components consisting of motor starter, terminal strip, and control transformer. 5.D.13.a.1) 120V Fused secondary. 5.D.13.a.2) 24 Volt fused secondary. 5.D.13.b. Multiple power supply. 5.D.13.c. Single power supply. 5.D.13.d. Enclosure: Oil-tight and dust-tight NEMA Type 4/12 enclosure with neoprene door gasket. 5.D.13.e. Enclosure: Oil-tight and dust-tight corrosion resistant NEMA 4X enclosure with neoprene door gasket. 5.D.13.f. Mounting: Remote mounted as indicated on Drawings. 5.D.13.g. Mounting: Unit mounted right end. 5.D.13.h. Mounting: Unit mounted left end. 5.D.13.i. Disconnect Switch: 5.D.13.i.1) Provide fused disconnect. 5.D.13.i.2) Provide non-fused disconnect. 5.D.13.j. Time Delay Relay: Adjustable from 0.1 second to 10 hour delay. 5.D.13.k. Switching: 15831-35 5.D.13.k.1) HAND-OFF-AUTOMATIC Switch: Panel mounted 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. 5.D.13.k.2) START-STOP Switch: Panel mounted switch for manual start-stop push button operation. 5.D.13.k.3) ON-OFF Switch: Panel mounted switch for manual on-off operation. 5.D.13.k.4) HEAT ON-OFF/SUMMER-WINTER Switch: Panel mounted switch to manually lock out heat operation. 5.D.14. Remote mounted Dry-type distribution transformer. 5.D.15. Unit mounted Dry-type distribution transformer. 5.D.16. Remote Activation Devices: 5.D.16.a. Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door closes. 5.D.16.b. HAND-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. 5.D.16.c. START-STOP Switch: Provides manual start-stop push button operation. 5.D.16.d. ON-OFF Switch: Provides manual on-off operation. 5.D.16.e. HEAT ON-OFF / SUMMER-WINTER Switch: Provides manual lock out for heat operation. 5.D.16.f. Thermostat: Prevents operation of heater when inside air temperature exceeds desired temperature. 5.D.16.g. Sequencing: ______.

5.E. Berner Industrial Direct Drive 30 Series air curtain: 5.E.1. Model IBC30 Ambient, Belt Drive. 5.E.2. Model IBC30 Electric Heated, Belt Drive. 5.E.3. Model IBC30 Hot Water Heated, Belt Drive. 5.E.4. Model IBC30 Steam Heated, Belt Drive. 5.E.5. Model IBC30 Positive Indirect Gas Heated, Belt Drive. 5.E.6. Cabinet: 5.E.6.a. Tamper-resistant construction; parts cannot be disassembled without special tool provided by manufacturer. 5.E.6.b. Dimensions: Air curtain cabinet (not including external heating options) not to exceed 39 inches (99.1 cm) high by 30 inches (76.2 cm) deep. 5.E.6.c. Material: 5.E.6.c.1) Minimum 14-gage aluminized steel with powder coated finish, welded 15831-36 construction. Color as selected. 5.E.6.c.2) Minimum 14-gage stainless steel, welded construction. 5.E.6.d. Mounting: 5.E.6.d.1) Wall mounting type. 5.E.6.d.2) Suspended mounting type. 5.E.6.d.3) Vertical mounting type. 5.E.6.d.4) Vertical tandem mounting type. 5.E.6.e. Service Access: Removable lower blower section with top or front access panels constructed from same material as cabinet. 5.E.7. Motors: Number and horsepower of motors shall be as scheduled 5.E.7.a. Belt Drive: 1750 RPM, three phase, 1-speed, totally enclosed fan cooled (TEFC). 5.E.8. Fans: Curved centrifugal type, double inlet, double width design with welded hubs, with aerodynamically formed air inlet venturis. Wheels and housings galvanized steel. 5.E.8.a. Drive blower wheels with flexible couplings. 5.E.9. Discharge Nozzle: Includes air volume control damper of same material as cabinet. 5.E.9.a. Provide uniform velocity across width of air curtain. 5.E.9.b. Mount on continuous piano hinge to allow deflection of air stream +/- 20 degrees without loss of discharge velocity or opening area. 5.E.9.c. Aperture: 8 inches (20.3 cm) slot by width of air curtain. 5.E.9.d. Vanes: 7.125 inch (18.1 cm) minimum height; constructed of airfoil-shaped aluminum extrusions. 5.E.10. Inlet: 5.E.10.a. Location: 5.E.10.a.1) Front. 5.E.10.a.2) Top. 5.E.10.b. Screen: Expanded metal with welded frame of same material used in cabinet. 5.E.11. Air Inlet Filter: 5.E.11.a. Flat-faced type, re-cleanable aluminum filters and hinged inlet screen. 5.E.11.b. V-Bank type, disposable filters and hinged inlet screen. 5.E.11.c. V-Bank type, re-cleanable polyester filters and hinged inlet screen. 5.E.12. Heating Elements: 5.E.12.a. Electric Heating Coil: UL-approved, factory-mounted, factory-wired, thermally protected, in galvanized steel frame. 5.E.12.b. Steam Coil: Certified in accordance with ARI 410; 16-gage galvanized steel 15831-37 casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins. 5.E.12.c. Hot Water Coil: Certified in accordance with ARI 410; 16-gage galvanized steel casing, 5/8-inch (15.8 mm) outside diameter copper tube with aluminum fins and seamless copper headers. 5.E.12.d. Direct Gas Fired Heater: 5.E.12.d.1) Fuel Type: Provide orifices for natural gas. 5.E.12.d.2) Gas Manifold (Train): As required by ANSI and FM and industrial risk insurance IRI. 5.E.12.d.3) Spark ignited intermittent pilot. 5.E.13. Controls: 5.E.13.a. Control Panel: UL listed, industrial type, pre-wired, with components consisting of motor starter, terminal strip, and control transformer. 5.E.13.a.1) 120V Fused secondary. 5.E.13.a.2) 24 Volt fused secondary. 5.E.13.b. Single power supply. 5.E.13.c. Enclosure: Oil-tight and dust-tight NEMA Type 4/12 enclosure with neoprene door gasket. 5.E.13.d. Enclosure: Oil-tight and dust-tight corrosion resistant NEMA 4X enclosure with neoprene door gasket. 5.E.13.e. Mounting: Remote mounted as indicated on Drawings. 5.E.13.f. Mounting: Unit mounted right end. 5.E.13.g. Mounting: Unit mounted left end. 5.E.13.h. Disconnect Switch: 5.E.13.h.1) Provide fused disconnect. 5.E.13.h.2) Provide non-fused disconnect. 5.E.13.i. Time Delay Relay: Adjustable from 0.1 second to 10 hour delay. 5.E.13.j. Switching: 5.E.13.j.1) HAND-OFF-AUTOMATIC Switch: Panel mounted 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. 5.E.13.j.2) START-STOP Switch: Panel mounted switch for manual start-stop push button operation. 5.E.13.j.3) ON-OFF Switch: Panel mounted switch for manual on-off operation. 5.E.13.j.4) HEAT ON-OFF/SUMMER-WINTER Switch: Panel mounted switch to manually lock out heat operation. 5.E.14. Remote mounted Dry-type distribution transformer. 5.E.15. 15831-38 Unit mounted Dry-type distribution transformer. 5.E.16. Remote Activation Devices: 5.E.16.a. Automatic Door Switch: Switch automatically activates unit when door opens and deactivates unit when door closes. 5.E.16.b. HAND-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. 5.E.16.c. START-STOP Switch: Provides manual start-stop push button operation. 5.E.16.d. ON-OFF Switch: Provides manual on-off operation. 5.E.16.e. HEAT ON-OFF / SUMMER-WINTER Switch: Provides manual lock out for heat operation. 5.E.16.f. Thermostat: Prevents operation of heater when inside air temperature exceeds desired temperature. 5.E.16.g. Sequencing: ______.

2.6 MOUNTING ACCESSORlES

6.A. Provide brackets and other mounting accessories as required permitting installation and functioning of air door to meet project conditions of use.

6.B. Mounting accessories 6.B.1. Painted, aluminized or galvanized steel. 6.B.2. Stainless steel.

6.C. Mount Type: 6.C.1. Top mounting brackets constructed of steel with white painted enamel finish. 6.C.2. Floor Brackets. 6.C.3. Extension Brackets. 6.C.4. Tandem Brackets.

PART 3 EXECUTION

3.1 EXAMINATION

1.A. Do not begin installation until openings have been properly prepared.

1.B. Verify required utilities are in correct location and of correct capacities for specified products.

1.C. If preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding. 15831-39 3.2 INSTALLATION

2.A. Install air door/air curtain components in accordance with approved shop drawings and manufacturer's printed installation instructions.

2.B. Install air doors plumb, level, and as close as practical to top of opening and face of wall.

2.C. Install switches where indicated.

2.D. Connection of hot water supply to heater used in air curtains as specified in Division 15 - Plumbing:.

2.E. Connection of steam supply to heater used in air curtains as specified in Division 15 - Heating, Ventilating, and Air-Conditioning (HVAC).

2.F. Connection of electrical service and controls as specified in Division 16 - Electrical:

3.3 CLEANING

3.A. Clean prior to startup.

3.B. Repair or repaint damage to finishes on exposed-to-view surfaces.

3.4 FIELD QUALITY CONTROL

4.A. Test and operate air door to be sure that it performs as intended.

4.B. Adjust discharge nozzles as required for each opening.

3.5 DEMONSTRATION

5.A. Demonstrate the adjustment, operation, and maintenance of air curtains to Owner's personnel.

3.6 PROTECTION

6.A. Protect installed products until completion of project.

6.B. Touch-up, repair or replace damaged products before Substantial Completion.

3.7 SCHEDULE

7.A. Refer to Air Door Schedule appended to this section.

15831-40 END OF SECTION

15831-41